CN109550890B - Sliding seat lost foam and method for casting sliding seat by using same - Google Patents
Sliding seat lost foam and method for casting sliding seat by using same Download PDFInfo
- Publication number
- CN109550890B CN109550890B CN201710873745.2A CN201710873745A CN109550890B CN 109550890 B CN109550890 B CN 109550890B CN 201710873745 A CN201710873745 A CN 201710873745A CN 109550890 B CN109550890 B CN 109550890B
- Authority
- CN
- China
- Prior art keywords
- sliding seat
- sand box
- bottom plate
- sand
- lost foam
- 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.)
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Links
- 239000006260 foam Substances 0.000 title claims abstract description 59
- 238000005266 casting Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 244000035744 Hura crepitans Species 0.000 claims description 62
- 239000004576 sand Substances 0.000 claims description 23
- 229910001018 Cast iron Inorganic materials 0.000 claims description 16
- 238000010114 lost-foam casting Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010115 full-mold casting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/043—Removing the consumable pattern
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The application discloses a method for casting a sliding seat by a sliding seat lost foam machine, which is made of foamed plastic plates and comprises a first sliding seat bottom plate, a second sliding seat bottom plate, a vertical plate and three reinforcing plates, wherein the lower surface of the first sliding seat bottom plate is connected with the upper surface of the second sliding seat bottom plate, the rear surface and the lower surface of the vertical plate are respectively connected with the front surface of the first sliding seat bottom plate and the upper surface of the second sliding seat bottom plate, the rear surface and the lower surface of the reinforcing plates are respectively connected with the front surface of the vertical plate and the upper surface of the second sliding seat bottom plate, the right side of the first sliding seat bottom plate is provided with left and right rows of right through holes, and the left side of the first sliding seat bottom plate is provided with left and right rows of left through holes. The beneficial effects of the application are as follows: the application has no burning of the sliding seat lost foam in the casting process of the sliding seat, avoids the pollution to the environment caused by the burning of the sliding seat lost foam, and has more stable quality of the obtained sliding seat product because no burning residue or waste gas of the cooperative lost foam is remained in the cast sliding seat.
Description
Technical Field
The invention relates to a sliding seat lost foam and a method for casting a sliding seat by using the same, and belongs to the technical field of casting.
Background
Lost foam casting (also called full mold casting) is a novel casting method which is to combine paraffin or foam models with similar size and shape as castings into model clusters by bonding, brush refractory coating, dry, then embed in dry quartz sand for vibration molding, pour under negative pressure to gasify the models, occupy the model positions by liquid metal, solidify and cool to form castings. The lost foam casting method in the prior lost foam casting method is of an integral structure which is not detachable, the lost foam is placed in a sand box, sand is filled and a pouring channel is opened, when cast iron in a molten state is poured, the lost foam is burnt, and the lost foam burns off to waste foam, which is contrary to the current environmental protection concept, because the lost foam burns slowly from a pouring channel opening to a direction away from the pouring channel opening, the lost foam possibly blocks the pouring channel, so that pouring is difficult to continue, especially when a cast workpiece is large, on the other hand, products after the lost foam burns cannot be discharged from the pouring channel due to pouring liquid cast iron and can only be mixed in the cast product, thus the quality of the cast product is unstable, the rejection rate of the product is high, and foam burning off is waste to foam itself.
Disclosure of Invention
The invention aims to provide a sliding seat lost foam, which solves the technical defects that a sliding seat is seriously polluted in the casting process and the quality stability of a sliding seat product is poor in the prior art.
In order to solve the problems, the invention adopts the following technical scheme: a kind of slide vanishing mould, made of foam plastic board, including the first slide base plate, the second slide base plate, riser and three triangular reinforcement plates which are set from left to right equally spaced, the length of the first slide base plate is smaller than that of the second slide base plate, the lower surface of the first slide base plate is connected with the upper surface of the second slide base plate, the back surface and lower surface of the riser are connected with the front surface of the first slide base plate and the upper surface of the second slide base plate, the back surface and lower surface of the reinforcement plate are connected with the front surface of the riser and the upper surface of the second slide base plate, the right side of the first slide base plate is opened with left and right two rows of right through holes, the right through hole of the right side is a first rectangular hole, a first square hole and a second square hole from front to back, the right through holes of the left row are respectively a third square hole, a first L-shaped hole and a fourth square hole from front to back, the left side of the first sliding base bottom plate is provided with a left through hole and a right through hole, the left through hole of the right row is sequentially a fifth square hole, a second L-shaped hole and a sixth square hole from front to back, the first L-shaped hole and the second L-shaped hole are symmetrical, the left through holes of the left row are sequentially a second rectangular hole, a third L-shaped hole and a fourth L-shaped hole from front to back, the middle of the bottom of the second sliding base bottom plate is provided with long grooves penetrating through the two ends of the second sliding base bottom plate along the front and back direction, the right side of each long groove is connected with a strip-shaped plate along the front and back direction, the left side surface of each strip-shaped plate is coplanar with the right side of each long groove, and the lower surface of each strip-shaped plate protrudes out of the lower surface of the second sliding base bottom plate.
The slide lost foam disclosed by the application can be dug out before molten cast iron is poured, so that no slide lost foam burns in the sand box in the process of pouring cast iron, and pollution to the environment caused by burning of the slide lost foam is avoided.
As a further development of the application, all connections are fixed by means of gluing. The application adopts an adhesive mode to connect foam plastic plates forming a lost foam, so that the beam lost foam is conveniently dug out of a sand box before pouring, and the application further aims to provide a casting method of a sliding seat, which adopts the sliding seat lost foam and comprises the following steps:
Step 1, filling a foam plastic plate on the lower surface of a second sliding seat bottom plate to serve as a lining by taking the lower surface of a strip-shaped plate as a reference surface, so that the lower surface of the whole sliding seat lost foam and the lower surface of the strip-shaped plate are positioned on the same horizontal reference surface;
Step 2, placing the sliding seat lost foam of the step 1 in a first sand box, enabling a filling lining to be positioned below, and sanding the first sand box;
Step 3, placing a second sand box on the upper part of the first sand box, and sanding the second sand box;
Step 4, turning the first sand box and the second sand box up and down as a whole, enabling the first sand box to be located above the second sand box, and removing lining;
step 5, placing a third sand box on the first sand box, and sanding the third sand box;
step 6; unpacking, namely digging out the sliding seat lost foam in the first sand box;
step 7, removing paint in a sand mold formed after the sliding seat lost foam in the first sand box;
Step 8, pouring channels are opened on the three sand boxes, and the second sand box, the first sand box and the third sand box are overlapped from bottom to top;
step 9, pouring molten cast iron from a pouring gate into the sand mold, and cooling;
And 10, sand is discharged, and the slide seat after casting is taken out of the sand box.
As a further improvement of the invention, in the step 6, if the sliding seat lost foam is excavated, sand is firstly replenished at the position where the sand is excavated, and then the step 7 is carried out.
In summary, the beneficial effects of the application are as follows: the application has the advantages that no sliding seat lost foam burns in the sliding seat casting process, the pollution to the environment caused by the burning of the sliding seat lost foam is avoided, and the quality of the obtained sliding seat product is more stable because no burning residue or waste gas of the cooperative lost foam is remained in the cast sliding seat.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a bottom view of the present invention.
Fig. 4 is a cross-sectional view A-A in fig. 3.
Fig. 5 is a B-B cross-sectional view in fig. 3.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
Embodiment one:
The sliding base lost foam as shown in fig. 1 to 5 is made of foam plastic plate, and specifically comprises a first sliding base bottom plate 1, a second sliding base bottom plate 2, a vertical plate 3 and three triangular reinforcing plates 4 which are arranged at equal intervals from left to right, wherein the length of the first sliding base bottom plate 1 in the front-rear direction is smaller than that of the second sliding base bottom plate 2 in the front-rear direction, the lower surface of the first sliding base bottom plate 1 is fixedly connected with the upper surface of the second sliding base bottom plate 2 in an adhesive manner, the rear surface and the lower surface of the vertical plate 3 are respectively fixedly connected with the front surface of the first sliding base bottom plate 1 and the upper surface of the second sliding base bottom plate 2 in an adhesive manner, the left surface, the rear surface and the right surface of the first sliding base bottom plate 1 are respectively coplanar with the left surface, the rear surface and the right surface of the second sliding base bottom plate 2, the rear surface and the lower surface of the reinforcing plate 4 are respectively and fixedly connected with the front surface of the vertical plate 3 and the upper surface of the second sliding base bottom plate 2 in an adhesive manner, the left surface of the left reinforcing plate 4 is coplanar with the left surface of the first sliding base bottom plate 1, the right surface of the right reinforcing plate 4 is coplanar with the right surface of the first sliding base bottom plate 1, the right side of the first sliding base bottom plate 1 is provided with left and right rows of right through holes, the right through holes of the right row are respectively provided with a first rectangular hole 5, a first rectangular hole 6 and a second rectangular hole 7 from front to back, the right through holes of the left row are respectively provided with a third rectangular hole 8, a first L-shaped hole 9 and a fourth rectangular hole 10 from front to back, the left side of the first sliding base bottom plate 1 is provided with left and right rows of left through holes, the left through holes of the right row are respectively provided with a fifth rectangular hole 11, a second L-shaped hole 12 and a sixth rectangular hole 13 from front to back, the first L-shaped hole 9 and the second L-shaped hole 12 are symmetrical, the left through holes of the left row are sequentially a second rectangular hole 14, a third L-shaped hole 15 and a fourth L-shaped hole 16 from front to back, a long groove 17 penetrating through two ends of the second slide base plate 2 is formed in the middle of the bottom of the second slide base plate 2 along the front-back direction, a strip-shaped plate 18 is fixedly connected to the right side of the long groove 17 in an adhesive mode along the front-back direction, the left side surface of the strip-shaped plate 18 is coplanar with the groove wall on the right side of the long groove 17, and the lower surface of the strip-shaped plate 18 protrudes out of the lower surface of the second slide base plate 2.
Embodiment two:
the technical scheme of the embodiment is that the method for casting the sliding seat by adopting the sliding seat lost foam according to the embodiment one, and the method of the embodiment specifically comprises the following steps:
Step 1, taking the lower surface of a strip-shaped plate 18 as a reference surface, filling a foam plastic plate on the lower surface of a second slide base plate 2 as a lining, and enabling the lower surface of the whole slide lost foam to be positioned on the same horizontal reference surface with the lower surface of the strip-shaped plate 18; the application sets the lining level, ensures that the lower surface of the second slide base plate 2 is kept horizontal in the step 2, and prevents the slide lost foam from being collapsed by sand.
And 2, placing the sliding seat lost foam of the step 1 in a first sand box, enabling the filling lining to be positioned below, and sanding the first sand box.
And 3, placing a second sand box on the upper part of the first sand box, and sanding the second sand box.
And 4, turning the first sand box and the second sand box up and down as a whole, enabling the first sand box to be located above the second sand box, and removing lining.
And 5, placing a third sand box on the first sand box, and sanding the third sand box.
Step 6; unpacking, namely digging out the sliding seat lost foam in the first sand box; and digging out the sliding seat lost foam, and forming a sand mold with the shape completely consistent with that of the sliding seat lost foam in the sand box.
Step 7, removing paint in a sand mold formed after the sliding seat lost foam in the first sand box; and the paint is painted, and sand is stuck when molten cast iron is poured, so that sand is conveniently discharged, a cast slide seat is conveniently taken out of a sand box, and the surface of the cast slide seat is kept smoother.
Step 8, pouring channels are opened on the three sand boxes, and the second sand box, the first sand box and the third sand box are overlapped from bottom to top; the runner is used for pouring molten cast iron into the sand mould.
And 9, pouring molten cast iron from a pouring gate into the sand mold, and cooling.
And 10, sand is discharged, and the slide seat after casting is taken out of the sand box.
In the embodiment, in step 6, if sand is dug out when the sliding seat lost foam is dug out, sand is replenished at the position where the sand is dug out, and then step 7 is carried out, and the sliding seat cast by the application is further improved in surface quality after the sand mold is placed until the surface of the cast sliding seat is protruded due to the pits.
The application is more environment-friendly and better in economical efficiency compared with the method of burning the sliding seat lost foam in the prior art, when casting molten cast iron, the molten cast iron can flow from the pouring gate towards the direction away from the pouring gate, the molten cast iron can accumulate from one end away from the pouring gate to one end of the pouring gate, compared with the lost foam at one end away from the pouring gate in the prior art, the cast iron in the molten state slowly flows to one end away from the cast iron along with the burning of the lost foam, when the sliding seat lost foam to be cast is larger, the cast iron near the pouring gate is extremely likely to start to solidify, so that the cast iron casting failure is caused.
Parts of the above description not specifically described are either prior art or may be implemented by prior art. Moreover, the embodiments of the present invention are described in the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Equivalent changes and modifications of the invention are intended to be within the scope of the present invention.
Claims (3)
1. A method for casting a sliding seat by adopting a sliding seat lost foam casting mold is made of foamed plastic plate materials and comprises a first sliding seat bottom plate (1), a second sliding seat bottom plate (2), a vertical plate (3) and three triangular reinforcing plates (4) which are arranged at equal intervals from left to right, wherein the length of the first sliding seat bottom plate (1) is smaller than that of the second sliding seat bottom plate (2), the lower surface of the first sliding seat bottom plate (1) is connected with the upper surface of the second sliding seat bottom plate (2), the rear surface and the lower surface of the vertical plate (3) are respectively connected with the front surface of the first sliding seat bottom plate (1) and the upper surface of the second sliding seat bottom plate (2), the rear surface and the lower surface of the reinforcing plates (4) are respectively connected with the front surface of the vertical plate (3) and the upper surface of the second sliding seat bottom plate (2), the right side of the first sliding seat bottom plate (1) is provided with left and right rows of right through holes, the right through holes of the right side one row are respectively provided with a first rectangular hole (5), a first hole (6) and a second hole (7) from front to back, the right side of the first hole (8) is provided with a right square through hole (8) from the front hole (8) to the right side of the right through hole (8), the right side of the right square through holes (8) are respectively provided with a right square through holes (8) from the front hole (8) to the front hole (8), the first L-shaped holes (9) and the second L-shaped holes (12) are symmetrical, a row of left through holes on the left side are sequentially provided with a second rectangular hole (14), a third L-shaped hole (15) and a fourth L-shaped hole (16) from front to back, an elongated slot (17) penetrating through two ends of the second slide base plate (2) is formed in the middle of the bottom of the second slide base plate (2) along the front-back direction, a strip-shaped plate (18) is connected to the right side of the elongated slot (17) along the front-back direction, the left side surface of the strip-shaped plate (18) is coplanar with the slot wall on the right side of the elongated slot (17), and the lower surface of the strip-shaped plate (18) protrudes out of the lower surface of the second slide base plate (2);
the method is characterized in that: comprises the following steps of the method,
Step 1, taking the lower surface of a strip-shaped plate (18) as a reference surface, filling a foam plastic plate on the lower surface of a second slide base plate (2) as a lining, and enabling the lower surface of the whole slide lost foam to be positioned on the same horizontal reference surface with the lower surface of the strip-shaped plate (18);
Step 2, placing the sliding seat lost foam of the step 1 in a first sand box, enabling a filling lining to be positioned below, and sanding the first sand box;
Step 3, placing a second sand box on the upper part of the first sand box, and sanding the second sand box;
Step 4, turning the first sand box and the second sand box up and down as a whole, enabling the first sand box to be located above the second sand box, and removing lining;
step 5, placing a third sand box on the first sand box, and sanding the third sand box;
step 6; unpacking, namely digging out the sliding seat lost foam in the first sand box;
step 7, removing paint in a sand mold formed after the sliding seat lost foam in the first sand box;
Step 8, pouring channels are opened on the three sand boxes, and the second sand box, the first sand box and the third sand box are overlapped from bottom to top;
step 9, pouring molten cast iron from a pouring gate into the sand mold, and cooling;
And 10, sand is discharged, and the slide seat after casting is taken out of the sand box.
2. The method of casting a slide using a slide lost foam as set forth in claim 1, wherein: all the connections are fixed by means of gluing.
3. The method of casting a slide using a slide lost foam as set forth in claim 1, wherein: in step 6, if the sliding seat lost foam is excavated, sand is firstly replenished at the position where the sand is excavated, and then step 7 is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873745.2A CN109550890B (en) | 2017-09-25 | 2017-09-25 | Sliding seat lost foam and method for casting sliding seat by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873745.2A CN109550890B (en) | 2017-09-25 | 2017-09-25 | Sliding seat lost foam and method for casting sliding seat by using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109550890A CN109550890A (en) | 2019-04-02 |
| CN109550890B true CN109550890B (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710873745.2A Active CN109550890B (en) | 2017-09-25 | 2017-09-25 | Sliding seat lost foam and method for casting sliding seat by using same |
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| CN (1) | CN109550890B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207188737U (en) * | 2017-09-25 | 2018-04-06 | 高淳县龙宁精密铸造有限公司 | Slide evaporative pattern |
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Country or region after: China Address after: 211302 Shuanglian Industrial Complex Zone of Chaqiao Town, Gaochun District, Nanjing City, Jiangsu Province Applicant after: Nanjing Longning Machine Tool Equipment Co.,Ltd. Address before: 211302 Shuanglian Industrial Complex Zone of Chaqiao Town, Gaochun District, Nanjing City, Jiangsu Province Applicant before: GAOCHUN LONGNING PRECISION CASTING Co.,Ltd. Country or region before: China |
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