CN102085739A - Layering method for two-dimensional carbon fiber composite material panel - Google Patents
Layering method for two-dimensional carbon fiber composite material panel Download PDFInfo
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Abstract
The invention discloses a layering method for a two-dimensional carbon fiber composite material panel, comprising the following steps of: 1. preparations before layering: determining the total thickness of a layer laid on a flat die, the type of the adopted carbon fiber cloth and various carbon fiber clothes before pressing and shaping, wherein various types of carbon fiber cloth are provided; 2. grouping the carbon fiber cloth: dividing various types of carbon fiber cloth into a plurality of laying groups; 3. forming a laying unit: tiling the plurality of laying groups from bottom to top layer by layer by using the flat die to form a laying unit; and 4. layering: tiling layer by layer from bottom to top by taking the laying unit of the flat die as a repeated tiling unit. The layering method has the advantages of reasonable design, simplicity in operation, low input cost, small raw material waste and good use effect, and the pressed and shaped panel has good quality after being layered; the layering method can be used for shaping a carbon fiber reinforced carbon base composite material panel which can be prepared by the working procedures of carbonization, dense processing, high-temperature processing and the like.
Description
Technical field
The invention belongs to two-dimentional carbon fiber composite sheet material processing and fabricating technical field, especially relate to a kind of shop layer method of two-dimentional carbon fiber composite sheet material.
Background technology
Mentioned the alternately carbon/carbon composite precast body of shop layer needling structure of a kind of charcoal cloth, net tire among invention disclosed patent application on the 11st November in 2009 CN101575766A, wasted serious but the intensity of its manufacturing cost height, fine and close cycle height, charcoal fiber has obtained the processing of damage and flat part thickness direction.And related to a kind of carbon fiber composite burster course among the utility model patent CN2573990Y that on September 7th, 2003 was announced, but this burster course has adopted charcoal fibre structure of the same type, and goods are thin (2-6mm), and single structure is difficult to solve the especially layering difficult problem of carbon fiber composite sheet material of big thickness (more than 20mm) charcoal fibrous plate.Mentioned a kind of shop layer method of carbon/carbon composite sheet material among invention disclosed patent application on the 3rd June in 2009 CN101445376A, but adopted charcoal cloth structure of the same type, and goods approach (1-10mm).Mentioned a kind ofly among the US8905348W, but will not mix the overall structure that the design concept of shop layer is brought composite into the composite material surface modification technique.
To sum up nowadays, the shop layer of two dimension carbon fiber composite sheet material mainly adopts a kind of charcoal fibre structure type to spread layer design or needling structure, have following shortcoming: the first, acupuncture course is short with charcoal fiber thorn, destroyed the intensity of charcoal fiber, in moulding carbon/carbon composite process, this kind structure surplus is had relatively high expectations, and has caused bigger cost waste, the simultaneously fine and close cycle is long, fine and close cost height; The second, when the measured goods of molded appearance matter, use single low tow charcoal fiber to cause the cost of raw material higher; Three, state is difficult to control between single structure charcoal fibrage, easily produces structural stress, causes the generation of lamination defect.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of shop layer method of two-dimentional carbon fiber composite sheet material is provided, it is reasonable in design, easy and simple to handle, input cost is low, waste of raw materials is less and result of use is good, good through the two-dimentional carbon fiber composite board quality of shop layer back institute's compression moulding, can effectively solve existing number of drawbacks and the deficiency that a kind of charcoal fibre structure type spreads that layer designs or needling structure exists when preparing two-dimentional carbon fiber composite sheet material that adopt.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of shop layer method of two-dimentional carbon fiber composite sheet material is characterized in that this method may further comprise the steps:
Preparation before step 1, the shop system: according to the plate construction of need compression moulding two dimension carbon fiber composite sheet material, determine before the compression moulding to comprise in the described two-dimentional carbon fiber composite sheet material of the gross thickness D of flat plate mold upper berth system shop layer and unit volume the kind and the shared volume ratio of various carbon fiber sheet of carbon fiber sheet, the kind of described carbon fiber sheet is multiple;
Step 2, carbon fiber sheet grouping: determined multiple carbon fiber sheet in the step 1 is divided into a plurality of groups, and a plurality of shop system groups of corresponding formation, the quantity of described shop system group is not more than the kind of described carbon fiber sheet; In the grouping process,, the ply gage and the cloth number of plies of various carbon fiber sheets are determined according to the shared volume ratio of determined various carbon fiber sheets in the step 1, and determine that the cloth number of plies of various carbon fiber sheets is respectively one or more layers;
Step 3, system unit, shop form: utilize flat plate mold, a plurality of shop system groups described in the step 2 are successively tiled from the bottom to top, and the thickness of corresponding formation system unit, a shop and described shop system unit is d;
Step 4, shop layer: utilize flat plate mold, with the shop system unit described in the step 3 for repeating the unit that tiles, successively tile from the bottom to top and a two-dimentional carbon fiber composite of corresponding acquisition shop layer, total number of plies of included shop system unit is n and n=D/d in the layer of described two-dimentional carbon fiber composite shop.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: the kind of carbon fiber sheet described in the step 1 is the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber, and the tow of described carbon fiber sheet is 1K～6K or 12K～48K, and wherein K represents tow thousand radicals.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material is characterized in that: one or more in the step 1 in the multiple described carbon fiber sheet are through the charcoal adhesive plaster behind the cement dipping machine impregnating resin or behind the manual brush coating.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: the kind of carbon fiber sheet described in the step 1 is two kinds, two kinds of carbon fiber sheets are respectively any two kinds and two kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber and remember respectively and make carbon fiber sheet a and carbon fiber sheet b that carbon fiber sheet a and carbon fiber sheet b are any two kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber; The quantity of the group of shop system described in the step 2 is two.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: when carrying out layering in the step 2, the cloth number of plies of described carbon fiber sheet a and carbon fiber sheet b is respectively one deck and two-layer, then serve as reasons respectively shop system group one that one deck carbon fiber sheet a forms and the shop system group two that is tiled and formed by one deck carbon fiber sheet a and one deck carbon fiber sheet b of two shop system groups.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: the kind of carbon fiber sheet described in the step 1 is three kinds, any three kinds and three kinds of carbon fiber sheets notes that three kinds of carbon fiber sheets are respectively in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber are made carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C, and carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C are any three kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber; The quantity of the group of shop system described in the step 2 is two or three.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: the quantity of described shop system group is two, and two shop system groups serve as reasons respectively shop system group one that carbon fiber sheet A and carbon fiber sheet B tiling form and the shop system group two that is paved into by carbon fiber sheet C.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: when carrying out layering in the step 2, the layer of cloth number average of definite carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C be one deck, the quantity of described shop system group is three and three shop system groups serve as reasons respectively shop system group one that one deck carbon fiber sheet A forms, the shop system group of being made up of one deck carbon fiber sheet B two and the shop system group of being made up of one deck carbon fiber sheet C three.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: the quantity of the group of shop system described in the step 2 is two, and in the grouping process, the cloth number of plies of definite carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C be respectively two-layer, two-layer and one deck, two shop system groups serve as reasons respectively shop system group one that one deck carbon fiber sheet A and one deck carbon fiber sheet B tiling form and the shop system group two that tiles and form by one deck carbon fiber sheet A, one deck carbon fiber sheet B and one deck carbon fiber sheet C.
The shop layer method of above-mentioned a kind of two-dimentional carbon fiber composite sheet material, it is characterized in that: one or more described in the step 1 in the multiple carbon fiber sheet are unidirectional no latitude cloth, when then spreading in the step 4 layer, should guarantee that the angle between the unidirectional no latitude cloth of adjacent two layers is acute angle or right angle.
The present invention compared with prior art has the following advantages:
1, the shop layer method is simple, shop layer step is few, reasonable in design and easy and simple to handle.
2, the used device cost is low, and the device structure that is adopted is simple and be common equipment.
3, the input cost of raw material significantly reduces.
4, result of use is good and practical value is high, the two-dimentional carbon fiber composite board quality of institute's compression moulding is good behind the layer of shop, the interlaminar shear strength height, the fine and close cycle is short, fine and close cost is low and the shaped article presentation quality is good, the product qualified rate height can effectively solve when adopting a kind of charcoal fibre structure type to spread layer design or needling structure to prepare two-dimentional carbon fiber composite sheet material existing structure surplus and have relatively high expectations, cost of raw material waste is bigger, the fine and close cycle is long, fine and close cost height, the moulded products presentation quality is relatively poor, state is difficult to number of drawbacks and deficiencies such as control between single structure charcoal fibrage.Adopt the plastic charcoal fiber-reinforced resin matrix compound material of the present invention sheet material, and it is carried out making the carbon fiber reinforced carbon based composite material sheet material after the operations such as charing, densified, high-temperature process.
5, applied widely and popularizing application prospect is extensive, the tow of the used charcoal fiber of shop layer, braiding structure etc. are not all limited, can spread layer and shop layer after can obtain corresponding two-dimentional carbon fiber composite board product after the conventional compression moulding polytype charcoal fiber; Simultaneously, the kind of shop charcoal fiber is not limit, can be carried out arbitrary combination shop layer two or more charcoal fibers; And the thickness of made two-dimentional carbon fiber composite board product is bigger, and its thickness can reach more than the 20mm.
In sum, the present invention is reasonable in design, easy and simple to handle, input cost is low, waste of raw materials is less and result of use good, the two-dimentional carbon fiber composite board quality of institute's compression moulding is good behind the layer of shop, can effectively solve existingly when adopting a kind of charcoal fibre structure type to spread layer design or needling structure to prepare two-dimentional carbon fiber composite sheet material, existing structure surplus is had relatively high expectations, cost of raw material waste is bigger, the fine and close cycle is long, fine and close cost height, the moulded products presentation quality is relatively poor, state is difficult to number of drawbacks and deficiencies such as control between single structure charcoal fibrage.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a shop of the present invention layer method flow chart.
The specific embodiment
The shop layer method of a kind of two-dimentional carbon fiber composite sheet material as shown in Figure 1 may further comprise the steps:
Preparation before step 1, the shop system: according to the plate construction of need compression moulding two dimension carbon fiber composite sheet material, determine before the compression moulding to comprise in the described two-dimentional carbon fiber composite sheet material of the gross thickness D of flat plate mold upper berth system shop layer and unit volume the kind and the shared volume ratio of various carbon fiber sheet of carbon fiber sheet, the kind of described carbon fiber sheet is multiple.
When reality is spread layer, the kind of described carbon fiber sheet is the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber, and the tow of described carbon fiber sheet is 1K～6K or 12K～48K, wherein K represents tow thousand radicals, and in the multiple described carbon fiber sheet one or more are through the charcoal adhesive plaster behind the cement dipping machine impregnating resin or behind the manual brush coating.
Step 2, carbon fiber sheet grouping: determined multiple carbon fiber sheet in the step 1 is divided into a plurality of groups, and a plurality of shop system groups of corresponding formation, the quantity of described shop system group is not more than the kind of described carbon fiber sheet; In the grouping process,, the ply gage and the cloth number of plies of various carbon fiber sheets are determined according to the shared volume ratio of determined various carbon fiber sheets in the step 1, and determine that the cloth number of plies of various carbon fiber sheets is respectively one or more layers.
Step 3, system unit, shop form: utilize flat plate mold, a plurality of shop system groups described in the step 2 are successively tiled from the bottom to top, and the thickness of corresponding formation system unit, a shop and described shop system unit is d.When reality tiles to a plurality of described shop system groups, can successively tile from the bottom to top to a plurality of described shop system groups according to multiple tiling order at random.That is to say that the tiling order of a plurality of described shop system group in the system unit, shop that forms is not limit, only need successively to tile from the bottom to top to get final product.
Step 4, shop layer: utilize flat plate mold, with the shop system unit described in the step 3 for repeating the unit that tiles, successively tile from the bottom to top and a two-dimentional carbon fiber composite of corresponding acquisition shop layer, total number of plies of included shop system unit is n and n=D/d in the layer of described two-dimentional carbon fiber composite shop.
Embodiment 1
In the present embodiment, as shown in Figure 1, when the two-dimentional carbon fiber composite sheet material of need moulding was spread layer, its shop layer process was as follows:
Preparation before step 1, the shop system: according to the plate construction of need compression moulding two dimension carbon fiber composite sheet material, and, determine before the compression moulding in the described two-dimentional carbon fiber composite sheet material of the gross thickness D of flat plate mold upper berth system shop layer and unit volume, to comprise the kind and the shared volume ratio of various carbon fiber sheet of carbon fiber sheet in conjunction with the briquetting process of conventional two-dimentional carbon fiber composite sheet material.
The actual shop when making, the kind of described carbon fiber sheet is two kinds, two kinds of carbon fiber sheets are respectively any two kinds and two kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber and remember respectively and make carbon fiber sheet a and carbon fiber sheet b that carbon fiber sheet a and carbon fiber sheet b are any two kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber.In the present embodiment, described carbon fiber sheet a is a 3K charcoal fiber plain, and carbon fiber sheet b is that 24K charcoal one-way fiber does not have latitude cloth.Described carbon fiber sheet a and carbon fiber sheet b are through the charcoal adhesive plaster behind the cement dipping machine impregnating resin or behind the manual brush coating, and the resin that carbon fiber sheet a and carbon fiber sheet b are soaked is thermostable phenolic resin, are prepared into two kinds of charcoal adhesive plasters after impregnating resin and the prebake respectively.
In the actual use, the tow of selected carbon fiber sheet is 1K～6K or 12K～48K, the type of described carbon fiber sheet is plain weave, twill, satin weave, net tire, unidirectional no latitude cloth or short chopping, then can select above-mentioned any one or more carbon fiber sheet according to the concrete needs of reality.Simultaneously, one or more in the multiple described carbon fiber sheet are through the charcoal adhesive plaster behind the cement dipping machine impregnating resin or behind the manual brush coating, then correspondingly make two-dimentional charcoal fiber/resin based composite material sheet material goods.In addition, described multiple carbon fiber sheet can all not carry out impregnating resin or manual brush coating yet to be handled, and directly spreads layer.
Step 2, carbon fiber sheet grouping: determined two kinds of carbon fiber sheets in the step 1 are divided into two groups, and two shop system groups of corresponding formation; In the grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, the ply gage and the cloth number of plies to two kinds of carbon fiber sheets are determined, the layer of cloth number average of two kinds of carbon fiber sheets is one deck in the present embodiment, then serve as reasons respectively shop system group one that carbon fiber sheet a forms and the shop system group of being made up of carbon fiber sheet b two of two shop system groups.
Step 3, system unit, shop form: utilize flat plate mold, two shop system groups described in the step 2 are successively tiled from the bottom to top, and the thickness of corresponding formation system unit, a shop and described shop system unit is d.In the present embodiment, formed shop system unit is system unit, ' a '+' b ' shop.Actual formation when spreading the system unit also can be adjusted in proper order to the tiling of carbon fiber sheet a and carbon fiber sheet b.
Step 4, shop layer: utilize flat plate mold, with the shop system unit described in the step 3 for repeating the unit that tiles, successively tile from the bottom to top and a two-dimentional carbon fiber composite of corresponding acquisition shop layer, total number of plies of included shop system unit is n and n=D/d in the layer of described two-dimentional carbon fiber composite shop.
In the present embodiment, because a kind of in two kinds of carbon fiber sheets described in the step 1 is unidirectional no latitude cloth, when then spreading in the step 4 layer, should guarantee that the angle between the unidirectional no latitude cloth of adjacent two layers is the right angle, promptly the angle between the unidirectional no latitude cloth of adjacent two layers is 90 °.When need strengthen the intensity of a certain direction, then 0 ° of direction is in the direction spread layer, this mainly is because in the composite material forming process, mainly play the fiber that is of bearing load effect, matrix is mainly brought into play the effect of transmitted load, no latitude cloth promptly only a direction fiber is arranged, all the other directions do not have fiber to strengthen (being warp-wise), this type of composite need carry out special structural design, otherwise be in unequal power distribution state (being distributed with respective formula about in-plane stress in " composite mesomechanics "), very easily make composite produce layering, as 0 °/90 °, in-plane stress all can be effectively eliminated in the layer design of shops such as 60 °/60 °/60 ° or 0 °/45 °/90 °, makes composite be in the near-isotropic state; If but composite requires the intensity of certain direction will be higher than other direction intensity, then should strengthen in this direction.
When in the multiple carbon fiber sheet described in the step 1 one or more are unidirectional no latitude cloth, when then spreading in the step 4 layer, should guarantee that the angle between the unidirectional no latitude cloth of adjacent two layers is acute angle or right angle, in the layer process of actual shop, can adjust accordingly the angle between the unidirectional no latitude cloth of adjacent two layers according to the concrete needs of reality.Generally speaking, the angle between the unidirectional no latitude cloth of adjacent two layers is 90 °, 45 ° or 60 °.In addition, when other carbon fiber sheet outside the unidirectional no latitude cloth was spread layer, interlayer did not then have the angle problem.
After the shop layer finished, again according to conventional briquetting process, the shop layer that the shop is made carried out press curing, can make two-dimentional carbon fiber composite sheet material.In the present embodiment, adopt hot press that the shop layer that the shop makes is carried out press curing, finally making thickness is that 20mm and density are 1.45g/cm
3Charcoal fiber/resin base composite-material product, the outward appearance exquisiteness of these goods is attractive in appearance, detect no layering through ultrasonic examination, interlaminar shear strength is 25MPa, technical merit greater than single 3K charcoal fiber plain compacting charcoal fiber/resin based composite material sheet material interlaminar shear strength 15MPa, and used cost of raw material when the present invention prepares charcoal fiber/resin base composite-material product only is about 3/5 of a single 3K charcoal fiber plain pressed sheet.
Embodiment 2
In the present embodiment, as different from Example 1: in the step 2 grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, when the ply gage of two kinds of carbon fiber sheets and the cloth number of plies are determined, determine that the cloth number of plies of two kinds of carbon fiber sheets is respectively one deck and two-layer, serve as reasons respectively shop system group one that one deck carbon fiber sheet a forms and the shop system group two that tiles and form by one deck carbon fiber sheet a and one deck carbon fiber sheet b of two shop system groups then.Correspondingly, in the step 3, formed shop system unit is system unit, ' a '+' a+b ' shop.In the present embodiment, all the other shop layer methods are all identical with embodiment 1 with step.
Embodiment 3
In the present embodiment, as shown in Figure 1, when the two-dimentional carbon fiber composite sheet material of need moulding was spread layer, its shop layer process was as follows:
Preparation before step 1, the shop system:, determine before the compression moulding in the described two-dimentional carbon fiber composite sheet material of the gross thickness D of flat plate mold upper berth system shop layer and unit volume, to comprise the kind and the shared volume ratio of various carbon fiber sheet of carbon fiber sheet according to the plate construction of need compression moulding two dimension carbon fiber composite sheet material.
The actual shop when making, the kind of described carbon fiber sheet is three kinds, any three kinds and three kinds of carbon fiber sheets notes that three kinds of carbon fiber sheets are respectively in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber are made carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C, and carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C are any three kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber.In the present embodiment, carbon fiber sheet A is a 3K charcoal fiber plain, and carbon fiber sheet B is a 24K charcoal fleece tire, and carbon fiber sheet C is a 48K charcoal fiber satin; Simultaneously, described carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C are through the charcoal adhesive plaster behind the cement dipping machine impregnating resin or behind the manual brush coating, are prepared into three kinds of charcoal adhesive plasters after impregnating resin and the prebake respectively.
Step 2, carbon fiber sheet grouping: determined three kinds of carbon fiber sheets in the step 1 are divided into three groups, and three shop system groups of corresponding formation; In the grouping process,, the ply gage and the cloth number of plies of three kinds of carbon fiber sheets are determined according to the shared volume ratio of determined various carbon fiber sheets in the step 1.In the present embodiment, the layer of cloth number average of three kinds of carbon fiber sheets is one deck, then serve as reasons respectively shop system group one that carbon fiber sheet A forms, the shop system group of being made up of carbon fiber sheet B two and the shop system group of being made up of carbon fiber sheet C three of three shop system groups.
Step 3, system unit, shop form: utilize flat plate mold, three shop system groups described in the step 2 are successively tiled from the bottom to top, and the thickness of corresponding formation system unit, a shop and described shop system unit is d.In the present embodiment, formed shop system unit is system unit, ' A '+' B '+' C ' shop.Actual formation when spreading the system unit also can be adjusted in proper order to the tiling of carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C.
Step 4, shop layer: utilize flat plate mold, with the shop system unit described in the step 3 for repeating the unit that tiles, successively tile from the bottom to top and a two-dimentional carbon fiber composite of corresponding acquisition shop layer, total number of plies of included shop system unit is n and n=D/d in the layer of described two-dimentional carbon fiber composite shop.
After the shop layer finished, again according to conventional briquetting process, the shop layer that the shop is made carried out press curing, and after high-temperature process, can make two-dimentional carbon fiber composite sheet material.
Embodiment 4
In the present embodiment, as different from Example 3: in the step 2 grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, when the ply gage of three kinds of carbon fiber sheets and the cloth number of plies are determined, determine that the layer of cloth number average of three kinds of carbon fiber sheets is one deck, and the quantity of described shop system group is two; Serve as reasons respectively shop system group one that carbon fiber sheet A and carbon fiber sheet B tiling form and the shop system group of forming by carbon fiber sheet C two of two shop system groups then.Correspondingly, in the step 3, formed shop system unit is system unit, ' A+B '+' C ' shop.In the present embodiment, all the other shop layer methods are all identical with embodiment 3 with step.
Embodiment 5
In the present embodiment, as different from Example 3: in the step 2 grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, when the ply gage of three kinds of carbon fiber sheets and the cloth number of plies are determined, determine that the layer of cloth number average of three kinds of carbon fiber sheets is one deck, and the quantity of described shop system group is two; Serve as reasons respectively shop system group one that carbon fiber sheet A forms and the shop system group two that tiles and form by carbon fiber sheet B and carbon fiber sheet C of two shop system groups then.Correspondingly, in the step 3, formed shop system unit is system unit, ' A '+' B+C ' shop.In the present embodiment, all the other shop layer methods are all identical with embodiment 3 with step.
Embodiment 6
In the present embodiment, as different from Example 3: in the step 2 grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, when the ply gage of three kinds of carbon fiber sheets and the cloth number of plies are determined, determine three kinds of carbon fiber sheets the cloth number of plies be respectively two-layer, one deck and one deck, and the quantity of described shop system group is two; Serve as reasons respectively shop system group one that one deck carbon fiber sheet A forms and the shop system group two that tiles and form by one deck carbon fiber sheet A, one deck carbon fiber sheet B and one deck carbon fiber sheet C of two shop system groups then.Correspondingly, in the step 3, formed shop system unit is system unit, ' A '+' A+B+C ' shop.In the present embodiment, all the other shop layer methods are all identical with embodiment 3 with step.
Embodiment 7
In the present embodiment, as shown in Figure 1, when the two-dimentional carbon fiber composite sheet material of need moulding was spread layer, its shop layer process was as follows:
Preparation before step 1, the shop system:, determine before the compression moulding in the described two-dimentional carbon fiber composite sheet material of the gross thickness D of flat plate mold upper berth system shop layer and unit volume, to comprise the kind and the shared volume ratio of various carbon fiber sheet of carbon fiber sheet according to the plate construction of need compression moulding two dimension carbon fiber composite sheet material.
In the present embodiment, the kind of described carbon fiber sheet is three kinds, three kinds of carbon fiber sheets are respectively carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C, and carbon fiber sheet A is a 6K charcoal fiber twill, carbon fiber sheet B is a 24K charcoal fleece tire, carbon fiber sheet C is the short chopping of 48K charcoal fiber, and carbon fiber sheet A is the charcoal adhesive plaster through being prepared into behind the dipping thermostable phenolic resin, carbon fiber sheet B is the net tire prepreg through being prepared into behind the dipping thermostable phenolic resin, and carbon fiber sheet C is for being cut into the short chopping of 7mm～70mm charcoal fiber with 48K charcoal silvalin after dipping thermostable phenolic resin and oven dry.
Step 2, carbon fiber sheet grouping: determined three kinds of carbon fiber sheets in the step 1 are divided into three groups, and three shop system groups of corresponding formation; In the grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, the ply gage and the cloth number of plies to three kinds of carbon fiber sheets are determined, in the present embodiment, the layer of cloth number average of three kinds of carbon fiber sheets is one deck, then serve as reasons respectively shop system group one that carbon fiber sheet A forms, the shop system group of being made up of carbon fiber sheet B two and the shop system group of being made up of carbon fiber sheet C three of three shop system groups.
Step 3, system unit, shop form: utilize flat plate mold, three shop system groups described in the step 2 are successively tiled from the bottom to top, and the thickness of corresponding formation system unit, a shop and described shop system unit is d.In the present embodiment, formed shop system unit is system unit, ' A '+' B '+' C ' shop.
In the present embodiment, when forming system unit, shop, it is compound earlier carbon fiber sheet B and carbon fiber sheet C to be carried out precompressed, and again that precompressed is compound carbon fiber sheet B and carbon fiber sheet C are tiled on the carbon fiber sheet A, and system unit, corresponding formation ' A '+' B '+' C ' shop.
Step 4, shop layer: utilize flat plate mold, with the shop system unit described in the step 3 for repeating the unit that tiles, successively tile from the bottom to top and a two-dimentional carbon fiber composite of corresponding acquisition shop layer, total number of plies of included shop system unit is n and n=D/d in the layer of described two-dimentional carbon fiber composite shop.
In the present embodiment, after the shop layer finishes,, adopt hot press that the shop layer that the shop makes is carried out press curing, make charcoal fiber/resin base composite-material product again according to conventional briquetting process; And through charing (density 〉=1.20g/cm
3), to make thickness after the operation such as resin pressure dipping-charing densified, high-temperature process be that 50mm and density are 1.55g/cm
3Two-dimentional carbon/carbon composite sheet material, the outward appearance exquisiteness of this two dimension carbon/carbon composite board product is attractive in appearance, detect no layering through ultrasonic examination, interlaminar shear strength is 15MPa, greater than the technical merit of single 6K charcoal fiber plain compression moulding two dimension carbon/carbon composite sheet material interlaminar shear strength 6MPa; Simultaneously, adopting the prepared used cost of raw material of two-dimentional carbon/carbon composite sheet material of the present invention only is about 2/3 of single 6K charcoal fiber plain pressed sheet, and process cycle only is that (the fine and close efficient of needling structure: the density increment only is 0.2g/cm to needling structure after single-steeping-charing
3-0.5g/cm
3About; Thickness direction need be reserved 20mm～30mm surplus) process-cycle about 1/2, thickness direction is smooth to need not processing, need not pre-made allowance.
Embodiment 8
In the present embodiment, as different from Example 7: in the step 2 grouping process, according to the shared volume ratio of determined various carbon fiber sheets in the step 1, when the ply gage of three kinds of carbon fiber sheets and the cloth number of plies are determined, determine that the cloth number of plies of three kinds of carbon fiber sheets is respectively two-layer, two-layer and one deck, and the quantity of described shop system group is two; Serve as reasons respectively shop system group one that one deck carbon fiber sheet A and one deck carbon fiber sheet B tiling form and the shop system group two that tiles and form by one deck carbon fiber sheet A, one deck carbon fiber sheet B and one deck carbon fiber sheet C of two shop system groups then.Correspondingly, in the step 3, formed shop system unit is system unit, ' A+B '+' A+B+C ' shop.In the present embodiment, all the other shop layer methods are all identical with embodiment 7 with step.
In the actual mechanical process, the kind of the described carbon fiber sheet of step 1 also can be four or more, and the shop system group quantity that correspondingly is divided in the step 2 also can correspondingly be adjusted; And when in the step 3 a plurality of shop system groups that are divided into being formed system unit, shop, its method and the kind of the described carbon fiber sheet of step 1 are to form the shop at two or three o'clock to make the method for unit identical.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (10)
1. the shop layer method of a two-dimentional carbon fiber composite sheet material is characterized in that this method may further comprise the steps:
Preparation before step 1, the shop system: according to the plate construction of need compression moulding two dimension carbon fiber composite sheet material, determine before the compression moulding to comprise in the described two-dimentional carbon fiber composite sheet material of the gross thickness D of flat plate mold upper berth system shop layer and unit volume the kind and the shared volume ratio of various carbon fiber sheet of carbon fiber sheet, the kind of described carbon fiber sheet is multiple;
Step 2, carbon fiber sheet grouping: determined multiple carbon fiber sheet in the step 1 is divided into a plurality of groups, and a plurality of shop system groups of corresponding formation, the quantity of described shop system group is not more than the kind of described carbon fiber sheet; In the grouping process,, the ply gage and the cloth number of plies of various carbon fiber sheets are determined according to the shared volume ratio of determined various carbon fiber sheets in the step 1, and determine that the cloth number of plies of various carbon fiber sheets is respectively one or more layers;
Step 3, system unit, shop form: utilize flat plate mold, a plurality of shop system groups described in the step 2 are successively tiled from the bottom to top, and the thickness of corresponding formation system unit, a shop and described shop system unit is d;
Step 4, shop layer: utilize flat plate mold, with the shop system unit described in the step 3 for repeating the unit that tiles, successively tile from the bottom to top and a two-dimentional carbon fiber composite of corresponding acquisition shop layer, total number of plies of included shop system unit is n and n=D/d in the layer of described two-dimentional carbon fiber composite shop.
2. according to the shop layer method of the described a kind of two-dimentional carbon fiber composite sheet material of claim 1, it is characterized in that: the kind of carbon fiber sheet described in the step 1 is the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber, and the tow of described carbon fiber sheet is 1K～6K or 12K～48K, and wherein K represents tow thousand radicals.
3. according to the shop layer method of claim 1 or 2 described a kind of two-dimentional carbon fiber composite sheet materials, it is characterized in that: one or more in the step 1 in the multiple described carbon fiber sheet are through the charcoal adhesive plaster behind the cement dipping machine impregnating resin or behind the manual brush coating.
4. according to the shop layer method of claim 1 or 2 described a kind of two-dimentional carbon fiber composite sheet materials, it is characterized in that: the kind of carbon fiber sheet described in the step 1 is two kinds, two kinds of carbon fiber sheets are respectively any two kinds and two kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber and remember respectively and make carbon fiber sheet a and carbon fiber sheet b that carbon fiber sheet a and carbon fiber sheet b are any two kinds of carbon fiber sheets in the short chopping of plain, twill, satin, net tire cloth, unidirectional no latitude cloth or charcoal fiber; The quantity of the group of shop system described in the step 2 is two.
5. according to the shop layer method of the described a kind of two-dimentional carbon fiber composite sheet material of claim 4, it is characterized in that: when carrying out layering in the step 2, the cloth number of plies of described carbon fiber sheet a and carbon fiber sheet b is respectively one deck and two-layer, then serve as reasons respectively shop system group one that one deck carbon fiber sheet a forms and the shop system group two that is tiled and formed by one deck carbon fiber sheet a and one deck carbon fiber sheet b of two shop system groups.
6. according to the shop layer method of claim 1 or 2 described a kind of two-dimentional carbon fiber composite sheet materials, it is characterized in that: the kind of carbon fiber sheet described in the step 1 is three kinds, three kinds of carbon fiber sheets are respectively plain, twill, satin, net tire cloth, any three kinds and three kinds of carbon fiber sheets notes in the short chopping of unidirectional no latitude cloth or charcoal fiber are made carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C, carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C are plain, twill, satin, net tire cloth, any three kinds of carbon fiber sheets in the short chopping of unidirectional no latitude cloth or charcoal fiber; The quantity of the group of shop system described in the step 2 is two or three.
7. according to the shop layer method of the described a kind of two-dimentional carbon fiber composite sheet material of claim 6, it is characterized in that: the quantity of described shop system group is two, and two shop system groups serve as reasons respectively shop system group one that carbon fiber sheet A and carbon fiber sheet B tiling form and the shop system group two that is paved into by carbon fiber sheet C.
8. according to the shop layer method of the described a kind of two-dimentional carbon fiber composite sheet material of claim 6, it is characterized in that: when carrying out layering in the step 2, the layer of cloth number average of definite carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C be one deck, the quantity of described shop system group is three and three shop system groups serve as reasons respectively shop system group one that one deck carbon fiber sheet A forms, the shop system group of being made up of one deck carbon fiber sheet B two and the shop system group of being made up of one deck carbon fiber sheet C three.
9. according to the shop layer method of the described a kind of two-dimentional carbon fiber composite sheet material of claim 6, it is characterized in that: the quantity of the group of shop system described in the step 2 is two, and in the grouping process, the cloth number of plies of definite carbon fiber sheet A, carbon fiber sheet B and carbon fiber sheet C be respectively two-layer, two-layer and one deck, two shop system groups serve as reasons respectively shop system group one that one deck carbon fiber sheet A and one deck carbon fiber sheet B tiling form and the shop system group two that tiles and form by one deck carbon fiber sheet A, one deck carbon fiber sheet B and one deck carbon fiber sheet C.
10. according to the shop layer method of the described a kind of two-dimentional carbon fiber composite sheet material of claim 2, it is characterized in that: one or more described in the step 1 in the multiple carbon fiber sheet are unidirectional no latitude cloth, when then spreading in the step 4 layer, should guarantee that the angle between the unidirectional no latitude cloth of adjacent two layers is acute angle or right angle.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103601523A (en) * | 2013-11-11 | 2014-02-26 | 航天特种材料及工艺技术研究所 | Needled preform structure of ceramic matrix composite pin and manufacturing method of pin by adopting structure |
| CN104557098A (en) * | 2014-12-27 | 2015-04-29 | 西安超码科技有限公司 | Carbon/carbon composite flange and manufacture method thereof |
| WO2022213646A1 (en) * | 2021-04-07 | 2022-10-13 | 成都飞机工业（集团）有限责任公司 | Calibration block for ultrasonic phased array sector scanning, and manufacturing and usage methods therefor |
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| CN101514510A (en) * | 2009-03-16 | 2009-08-26 | 霍伟志 | Activated carbon fibrous composite and preparation method thereof |
| CN101532253A (en) * | 2008-03-12 | 2009-09-16 | 比亚迪股份有限公司 | Carbon fiber composite material product and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101532253A (en) * | 2008-03-12 | 2009-09-16 | 比亚迪股份有限公司 | Carbon fiber composite material product and manufacturing method thereof |
| CN101514510A (en) * | 2009-03-16 | 2009-08-26 | 霍伟志 | Activated carbon fibrous composite and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103601523A (en) * | 2013-11-11 | 2014-02-26 | 航天特种材料及工艺技术研究所 | Needled preform structure of ceramic matrix composite pin and manufacturing method of pin by adopting structure |
| CN103601523B (en) * | 2013-11-11 | 2015-09-02 | 航天特种材料及工艺技术研究所 | A kind of needling preform structure of ceramic matric composite pin and preparation method |
| CN104557098A (en) * | 2014-12-27 | 2015-04-29 | 西安超码科技有限公司 | Carbon/carbon composite flange and manufacture method thereof |
| WO2022213646A1 (en) * | 2021-04-07 | 2022-10-13 | 成都飞机工业（集团）有限责任公司 | Calibration block for ultrasonic phased array sector scanning, and manufacturing and usage methods therefor |
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