CN201164900Y - Composite metal mould - Google Patents
Composite metal mould Download PDFInfo
- Publication number
- CN201164900Y CN201164900Y CNU2008200443832U CN200820044383U CN201164900Y CN 201164900 Y CN201164900 Y CN 201164900Y CN U2008200443832 U CNU2008200443832 U CN U2008200443832U CN 200820044383 U CN200820044383 U CN 200820044383U CN 201164900 Y CN201164900 Y CN 201164900Y
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- Prior art keywords
- gate
- temperature
- model
- resistant layer
- metal type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 48
- 229910052742 iron Inorganic materials 0.000 claims description 24
- 238000010276 construction Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 5
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 238000007528 sand casting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010120 permanent mold casting Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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- Coating By Spraying Or Casting (AREA)
Abstract
The utility model relates to a compound metal type mould, including the metal body that is equipped with the sprue, its characterized in that: the inner wall of the pouring channel of the metal body is covered with a high-temperature resistant layer to form a composite structure. The utility model discloses simple structure adopts the sprue channel that has composite structure, can keep the original production mode of production line to reform transform and produce under the little prerequisite, adopts the utility model discloses cast, can energy saving greatly, extension mould life is more than 3 times, gained ironcasting mechanical properties is high, the quality is even stable, the process flow is short, auxiliary assembly is few, take up an area of less, efficient, adopt the utility model discloses with two simplex position metal type casting machine two class productions, the annual output ironcasting can reach 150 ~ 180 ten thousand.
Description
Technical field
The utility model relates to casting field, particularly relates to a kind of compound metal type mould that is used to cast ironcasting.
Background technology
Mainly be to adopt sand casting in China's iron casting production at present.Sand casting is to adopt the method for sand moulding to carry out the molten iron moulding by casting to obtain foundry goods, and the shortcoming that adopts this kind method is that foundry goods forms the graphite form of a definite form only, the thick graphite form of general easy formation because the cooling velocity of ironcasting in sand mold is slow.The graphite form tiny as need generally will adopt metal type dies, and reason is because the metal type dies cooling velocity is fast, easily forms tiny graphite form.In the ironcasting permanent mold casting, generally adopt the method for iron-based die casting, development in recent years is to the golden mold casting method of useful copper alloy die.
In the above casting method, its medium sand casting labour intensity is big, noise is big, and the dust of generation, antiquated sand, waste gas is contaminated environment and influence the healthy of workman not only, and the while casting quality is low, machining allowance is big, and stock utilization is low, efficient is low, energy consumption is big.And the ferrous metals type in use produces very big thermal stress because of its huge thermograde, not only shortens the service life of metal type dies greatly, and influences casting quality, and production efficiency is not high yet simultaneously.The relevant work of the domestic in recent years ironcasting copper alloy type casting that conducts a research, make much progress, but still it is big to exist in the casting process temperature loss, have to improve pouring temperature, problems such as die life is not long, its reason is owing to gate 2 in the metallic mould, 3,4 with the mould metal body be that an integral body is (as Fig. 1, shown in 2), make the pyroconductivity height by same metal material, after molten iron pours into gate, the inwall of gate is very fast to have absorbed a large amount of heats in the molten iron, and very fast conduction diffuses away for be cooled water and air of metallic mould integral body, heat, thereby allow molten iron temperature expection low in the real inflow die cavity, therefore at this moment have to improve the molten iron temperature (promptly having improved the required power consumption of fusing high temperature) at 1 place, sprue gate, waste energy, cause the raw material scaling loss to increase simultaneously; Because metal pattern easily dispels the heat, not only die cavity 5 temperature are inconsistent with expection during cast, and difficulty is also compared in the temperature control at sprue gate 1; Simultaneously because gate 2,3 passages are longer, when molten iron is flow in die cavity 5 processes by sprue gate 1, molten iron is through gate 2, formed bigger difference in height at 3 o'clock, thereby bigger impact potential energy is formed on running channel bottom 6, and because to the back and forth acting in conjunction of influence of the mould temperature difference, thereby cause the metallic mould life-span to descend.Generally, in the permanent mold casting process, modal is owing to running gate system (part) damage causes unitary mould to scrap, and especially for expensive metallic mould, causes bigger waste, has increased production cost.
Summary of the invention
For addressing the above problem, the purpose of this utility model provides a kind of compound metal type mould, and it can further improve die life and product quality and production efficiency on the basis of former metallic mould, and energy savings reduces cost.
The purpose of this utility model is achieved in that a kind of compound metal type mould, comprises the metal body that is provided with gate, it is characterized in that: the gate inwall of described metal body is coated with high-temperature-resistant layer, forms composite construction.
Described metal body is iron body, ferroalloy body, copper body or copper alloy body.
Described high-temperature-resistant layer is little non-metallic layer of thermal conductivity ratio metal body or metal level.
Described high-temperature-resistant layer is a ceramic layer.
Described high-temperature-resistant layer is by inlaying, spray or be applied in the gate inwall formation composite construction of metal body.
Straight gate and horizontal gate in the described gate are coated with high-temperature-resistant layer.
The cast ratio of the straight gate in the described gate, horizontal gate and interior gate is: F is straight: in F horizontal stroke: the F=1.0: 1.2～1.7: 1.5～2.7.
Described metal body is divided into dynamic model and cover half, offers a plurality of cooling water channels on dynamic model and the cover half respectively.
The utility model is simple in structure, employing has the gate of composite construction, can keep producing under the little prerequisite of the original production model transformation of production line, adopt the utility model to cast, energy savings greatly, prolong die life more than 3 times, gained ironcasting mechanical property height, quality are uniform and stable, process flow is short, auxiliary equipment is few, take up an area of less, the efficient height, adopt the utility model to produce, produce ironcasting per year and can reach 150～1,800,000 with two single station metal mold casting machine Straight Runs.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is the A portion partial enlarged drawing of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the B portion partial enlarged drawing of Fig. 3;
Fig. 5 is user mode figure of the present utility model.
The specific embodiment
As shown in the figure, the utility model is a kind of compound metal type mould, comprises the metal body 23 that is provided with gate, and metal body 23 is divided into dynamic model 8 and cover half 7.Metal body 23 is provided with straight gate 12, horizontal gate 13, interior gate 21 and die cavity 22, and preferably, its cast is that F is straight than (ratio of gate cross-sectional area): in F horizontal stroke: the F=1.0: 1.2～1.7: 1.5～2.7.
The gate inwall of metal body 23 is coated with high-temperature-resistant layer 24, forms composite construction.Described metal body 23 can be iron body, ferroalloy body, copper body or copper alloy body.Described high-temperature-resistant layer 24 is little non-metallic layer or a metal level of thermal conductivity ratio metal body 23.Best, high-temperature-resistant layer 24 is a ceramic layer.The gate inwall of metal body 23 is inlayed, sprays or be applied in to this high-temperature-resistant layer 24.Preferably, high-temperature-resistant layer 24 should be covered at least to bigger straight gate 12 and horizontal gate 13 inwalls of casting liquid influence.
This composite construction has solved on the one hand owing to mould is subjected to molten iron to impact bottom 14 along straight gate 12 cast and has produced the problem that local damage causes integral water-cooled metal type dies to scrap too early, on the other hand, after adopting the utility model, molten iron back and forth influences the effect that obvious decline is also arranged with existing metal type dies comparison gradient to the temperature of mould metal body 23, therefore also improved die life, after adopting mould of the present utility model, be three times of former one-piece die its die life, saved die cost.In addition because the gate inwall is provided with the high-temperature-resistant layer of being made than metal body 23 little materials by the high temperature heat-resistant conductivity 24, when molten iron flows through sprue 12 with cross gate 13, thermal loss is less, sprue gate 15 is little with the existing metal type dies of the molten iron temperature difference in the die cavity, therefore decline (can reduce 30-50 ℃ approximately) is to a certain degree arranged when molten iron porch temperature can be used former metallic mould, thereby reduced energy resource consumption, simultaneously also reduced the influence of temperature difference, made mechanical castings height, quality uniform and stable foundry goods.
Embodiment 1
Compound metal type mould of the present utility model such as Fig. 3.Mould mainly is made up of metal body 23 (being divided into dynamic model 8 and cover half 7), ceramic filter device 16, foundry goods ejection system 17,18.As shown in Figure 4, the straight gate in the die casting system 12 studs with the less high-temperature-resistant layer of conveniently replaced pyroconductivity 24 (adopting ceramic layer in the present embodiment) with horizontal gate 13 inwalls.Be respectively equipped with water cooling plant (for example offering a plurality of cooling water channels 11) on dynamic model 8, the cover half 7, so that cool off cover half 7 and dynamic model 8 fast.
High-temperature-resistant layer 24 adopts panel mechanical connection method to combine with metal body 23.Reserve the shape and the size of (processing) gate in advance in metal body 23 running gate systems, the high-temperature-resistant layer 24 difference panels that to make then are at the straight gate 12 of metal body 23, horizontal gate 13 inwalls, the pin of making of exotic material 19 tightens up at last, and is conveniently replaced.Adopt this structure, even running gate system sustains damage, mould need not to unload from casting machine, can change high-temperature-resistant layer 24 easily and efficiently, thereby enhance productivity greatly, reduces cost.
During use as shown in Figure 5, mould is installed on casting machine, wherein dynamic model 8 is connected with mould connecting plate 9, drives Die and mould plates 9 by oil cylinder 10 and seesaws and realize opening and closing of dynamic model 8 and cover half 7, finishes the closing of casting solidification time behind the iron liquid casting, die sinking and foundry goods automatically and ejects.Simultaneously on the casting machine console, can set the required upper and lower limit temperature of mold temperature, the water yield of regulating cooling waters automatically by the temperature measurer of installing on the mould 20 with accurate control mould temperature in required scope.Metal mold opening speed, mold clamping force, ejecting force can be set in advance.Thereby mould must carry out spray paint to die cavity 22 before cast makes foundry goods be easy to separate from mould, needs simultaneously at straight gate 12 ceramic foam filter 16 to be set, with residual assorted filtration the in the molten iron.
When producing ironcasting, its iron liquid melting and processing method are as follows: raw material (as the pig iron, steel scrap, ferroalloy, foundry returns) is put into the electric furnace that burn-off rate is 0.5T/30-40min, finish the fusing and the chemical composition allotment (passing through both analysis) of iron charge, iron liquid is come out of the stove at 1430-1460 ℃ after high temperature purification is handled.Come out of the stove iron liquid through quantitatively wrapping the quantitative and inoculation of finishing iron liquid.Quantitative containing amount 10-100kg, inovulant is ferrosilicon, strontium ferrosilicon, addition 0.2-0.6%.Pouring temperature 1360-1400 ℃, 5～10 seconds durations of pouring, 6～25 seconds release time, by cooling water the metal body temperature is controlled at 130-230 ℃ simultaneously.
Foundry goods post processing: put into heat-treatment furnace through the foundry goods of just choosing.Be heated to 1-2.5 hour (blowing) air cooling of can coming out of the stove of 890-930 ℃ of insulation.Cooling back foundry goods is removed burr through the ball blast reconditioning, eliminates the oxide on surface stove, and the check back forms finished product.
High-temperature-resistant layer 24 adopts high-temperature resistant coating to combine with the method and the metal body 23 of spraying.
Other are with embodiment 1.
Claims (8)
1. a compound metal type mould comprises the metal body that is provided with gate, it is characterized in that: the gate inwall of described metal body is coated with high-temperature-resistant layer, forms composite construction.
2. compound metal type mould according to claim 1 is characterized in that: described high-temperature-resistant layer is by inlaying, spray or be applied in the gate inwall formation composite construction of metal body.
3. compound metal type mould according to claim 1 is characterized in that: straight gate and horizontal gate in the described gate are coated with high-temperature-resistant layer.
4. compound metal type mould according to claim 1 is characterized in that: described high-temperature-resistant layer is little non-metallic layer of thermal conductivity ratio metal body or metal level.
5. compound metal type mould according to claim 4 is characterized in that: described high-temperature-resistant layer is a ceramic layer.
6. compound metal type mould according to claim 1 is characterized in that: described metal body is iron body, ferroalloy body, copper body or copper alloy body.
7. compound metal type mould according to claim 1 is characterized in that: the cast ratio of the straight gate in the described gate, horizontal gate and interior gate is: F is straight: in F horizontal stroke: the F=1.0: 1.2～1.7: 1.5～2.7.
8. compound metal type mould according to claim 1 is characterized in that: described metal body is divided into dynamic model and cover half, offers a plurality of cooling water channels on dynamic model and the cover half respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200443832U CN201164900Y (en) | 2008-02-29 | 2008-02-29 | Composite metal mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200443832U CN201164900Y (en) | 2008-02-29 | 2008-02-29 | Composite metal mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201164900Y true CN201164900Y (en) | 2008-12-17 |
Family
ID=40190283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200443832U Expired - Lifetime CN201164900Y (en) | 2008-02-29 | 2008-02-29 | Composite metal mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201164900Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397988A (en) * | 2011-12-07 | 2012-04-04 | 常熟市东涛金属复合材料有限公司 | Composite metal mould |
| CN105642861A (en) * | 2016-01-14 | 2016-06-08 | 瑞安市三义机械有限公司 | Die-casting technology of stainless steel valve body |
| CN105834397A (en) * | 2016-05-26 | 2016-08-10 | 镇江市经纬工程机械有限公司 | Double-mold casting molding method for shock-resistance eccentric shaft |
| CN105945233A (en) * | 2016-05-26 | 2016-09-21 | 镇江市经纬工程机械有限公司 | Casting forming method of impact resistant eccentric shaft |
| CN114737108A (en) * | 2022-04-29 | 2022-07-12 | 德兴市立达机械制造有限公司 | Formula of gold bearing and casting process thereof |
-
2008
- 2008-02-29 CN CNU2008200443832U patent/CN201164900Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397988A (en) * | 2011-12-07 | 2012-04-04 | 常熟市东涛金属复合材料有限公司 | Composite metal mould |
| CN105642861A (en) * | 2016-01-14 | 2016-06-08 | 瑞安市三义机械有限公司 | Die-casting technology of stainless steel valve body |
| CN105834397A (en) * | 2016-05-26 | 2016-08-10 | 镇江市经纬工程机械有限公司 | Double-mold casting molding method for shock-resistance eccentric shaft |
| CN105945233A (en) * | 2016-05-26 | 2016-09-21 | 镇江市经纬工程机械有限公司 | Casting forming method of impact resistant eccentric shaft |
| CN114737108A (en) * | 2022-04-29 | 2022-07-12 | 德兴市立达机械制造有限公司 | Formula of gold bearing and casting process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081217 |
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| CX01 | Expiry of patent term |