CN104826986A - Method used for preventing sand adhesion of sand mould castings, and sand mould prefabricated components - Google Patents
Method used for preventing sand adhesion of sand mould castings, and sand mould prefabricated components Download PDFInfo
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- CN104826986A CN104826986A CN201510186005.2A CN201510186005A CN104826986A CN 104826986 A CN104826986 A CN 104826986A CN 201510186005 A CN201510186005 A CN 201510186005A CN 104826986 A CN104826986 A CN 104826986A
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- sand
- prefabricated component
- prefabricated
- mould
- scab
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention relates to a method used for preventing sand adhesion of sand mould castings, and sand mould prefabricated components. Each of the sand mould prefabricated components comprises a prefabricated block and connecting claws; the connecting claws are embedded in the prefabricated block, and are firmly connected with the prefabricated block; and the two ends of each connecting claw are provided with Y-shaped support legs. According to the method, prefabrication of the sand mould prefabricated components corresponding to certain parts in sand mould modeling is carried out; in modeling processes, the sand mould prefabricated components are placed at corresponding parts, filling of moulding sand and pressing are carried out, and the connecting claws on the sand mould prefabricated components are mixed with the moulding sand so as to realize integration of the sand mould prefabricated components with the moulding sand. The special-type prefabricated components are fixedly arranged at the preset parts of sand moulding, so that casting sand adhesion and sand filling are avoided, local deformability and collapsibility are improved, local temperature is controlled, casting quality is increased, production cost is reduced, and operation is convenient. The sand mould prefabricated components are provided with universal R angles; plane standardization can be realized; and cutting and splicing can be carried out.
Description
Technical field
The present invention relates to sand casting field, particularly prevent method and the sand mold prefabricated component of the scab of sand casting foundry goods.
Background technology
1, when manufacturing thick cross section foundry goods or heavy castings, common sand mold is not enough to the high temperature action of metals tolerant oxide, causes cast(ing) surface that the defect such as burnt-in sand, scab often occurs, and in the case, conventional measure is that local special sand carries out manual stacking.This method makes the consumption of special sand, position, intensity all wayward, causes cost to waste, and reduces casting quality.
2, for reducing foundry goods scab, burnt-in sand, improving local deformability, avoiding local defeated and dispersed, carrying out partial temperature control.Local core is taked to realize the differentiation of Modeling Material.This kind of method increases die cost, and moulding difficulty is large.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method preventing the scab of sand casting foundry goods, and the sand mold prefabricated component that the method adopts.Improve casting quality, reduce costs.
For achieving the above object, the present invention realizes by the following technical solutions:
Prevent the method for mould sand casting foundry goods scab, to sand mold moulding prefabricated corresponding site sand mold prefabricated component in advance, during moulding, sand mold prefabricated component is positioned over relevant position, insert sand compaction, prefabricated component connects pawl to mix with molding sand, realize prefabricated component integrated with molding sand, concrete operations are as follows:
1) part molding sand will be inserted in sandbox;
2) judge easily to occur scab position according to casting structure;
3) prefabricated component of correspondence position is made;
4) in sandbox, place sand mold mould, easily occurring that the position of scab places sand mold prefabricated component in advance;
5) insert sand compaction, prefabricated component is fixed by molding sand;
6) molding.
Described sand mold prefabricated component adopts chrome ore or zircon sand to make.
Sand mold prefabricated component, comprises prefabricated section and is connected pawl, connect pawl to be included in prefabricated section and with prefabricated section compact siro spinning technology, connect pawl two ends and be equipped with Y type leg, sand mold prefabricated component is fitted in sand mold mould surface.
Described prefabricated section is various regular geometric or irregular figure.
Described prefabricated component can be splicing construction.
Described connection pawl is metal claw.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention's extraordinary prefabricated component made in advance is fixed on the precalculated position of sand mold, realizes reducing foundry goods scab, burnt-in sand, improves local deformability, improve local collapsibility, controls local temperature, improve poring rate, improve casting quality, reduce production cost, easy to operate.General R angle, plane can standardization, can cut splicing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the embodiment of the present invention 1 casts I-shaped steel grit box.
Fig. 2 is embodiment 1 I-steel sand mold preform structure schematic diagram.
Fig. 3 is the schematic diagram that the embodiment of the present invention 2 casts ladder rotary work piece sandbox.
Fig. 4 is annular right-angle preform structure schematic diagram in embodiment 2.
Fig. 5 is embodiment 2 outer ring right angle preform structure schematic diagram.
Fig. 6 is embodiment 2 collar preform structure schematic diagram.
Fig. 7 is for connecting pawl structural representation.
In figure: prefabricated cover 13-prefabricated ring in annular right-angle prefabricated cover 12-outer ring right angle in annular right-angle prefabricated component 9-outer ring right angle prefabricated component 10-collar prefabricated component 11-in 1-sandbox 2-molding sand 3-I-steel mould 4-I-steel sand mold prefabricated component 5-I-steel sand mold prefabricated section 6-connection pawl 7-casting ladder rotary work piece mould 8-
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
Embodiment 1
As shown in Figure 1, I-steel is cast.
Prevent the method for I-steel mould sand casting I-steel scab, to sand mold moulding prefabricated corresponding site sand mold prefabricated component in advance, sand mold prefabricated component adopts the chrome ore in non-silica sand to make, and during moulding, sand mold prefabricated component is positioned over relevant position, insert sand compaction, prefabricated component nature is fixed by molding sand; Concrete operations are as follows:
1) part molding sand 2 is inserted by sandbox 1;
2) judge that I-steel four interior square position easily occur scab phenomenon according to i-beam structure;
3) make I-steel sand mold prefabricated component 4 according to rectangular shaped in I-steel, I-steel sand mold prefabricated component 4 strip right angle prefabricated component, because I-steel length is longer, standard component prefabricated component being made into some regular lengths carries out splicing and uses;
4) in sandbox, I-steel mould is placed, place sand mold prefabricated component in advance four interior square position, the right-angle side of prefabricated component is fitted in I-steel on right angle, segment prefabricated component is spliced, ensure during splicing that interface is tight, do not have molten steel during casting and infiltrate;
5) insert sand compaction, prefabricated component is fixed by molding sand;
6) molding.
As shown in Figure 2, I-steel sand mold prefabricated component by prefabricated section 5 be connected pawl 6 and form, prefabricated section 5 side is right angle opposite side is arc groove, connects pawl and equidistantly distributes in arc groove side, one end Y type leg connecting pawl is coated in prefabricated section, and other end Y type leg is exposed at outside prefabricated section.
Embodiment 2
As shown in Figure 3, ladder rotary work piece is cast
Prevent the method for ladder revolving meber mould sand casting foundry goods scab, to sand mold moulding prefabricated corresponding site sand mold prefabricated component in advance, sand mold prefabricated component adopts the zircon sand in non-silica sand to make, during moulding, sand mold prefabricated component is positioned over relevant position, insert sand compaction, prefabricated component nature is fixed by molding sand; Concrete operations are as follows:
1) part molding sand 2 is inserted by sandbox 1;
2) easily there is scab phenomenon according to the straight mouth of ladder and cylinder inner wall inside and outside ladder rotary work piece structure decision ladder rotary work piece;
3) make inside and outside annular right-angle prefabricated component 8,9 according to the straight mouth-shaped of ladder inside and outside workpiece, annular right-angle prefabricated component can cut into some equal angular prefabricated calibrated bolcks, and annular right-angle prefabricated component can be spliced by prefabricated calibrated bolck;
Make collar prefabricated component 10 according to cylinder inner wall shape, cylinder inner wall length can be spliced by collar prefabricated component, and collar prefabricated component 10 can cut, and cylinder inner wall diameter can splice;
4) place work piece mould in sandbox, ladder Zhi Kou position places inside and outside annular right-angle prefabricated component 8,9 in advance outside, and annular right-angle prefabricated component can be spliced by prefabricated calibrated bolck, ensures that interface is tight during splicing, does not have molten steel and infiltrate during casting; Cylinder inner wall places collar prefabricated component in advance, and cylinder inner wall diameter can splice, and cylinder inner wall length can be spliced by collar prefabricated component, ensures that interface is tight during splicing, does not have molten steel and infiltrate during casting;
5) insert sand compaction, prefabricated component is fixed by molding sand;
6) molding.
As shown in Figure 4, interior annular right-angle prefabricated component 8 by the prefabricated cover 11 of interior annular right-angle be connected pawl 6 and form, interior annular right-angle prefabricated cover 11 outer is right angle, interior annular right-angle prefabricated cover 11 inner circle is arc groove, connecting pawl 6 is distributed on arc groove, one end Y type leg connecting pawl 6 is coated in prefabricated section, and other end Y type leg is exposed at prefabricated cover outside.
As shown in Figure 5, outer ring right angle prefabricated component 9 by the prefabricated cover 12 in outer ring right angle be connected pawl 6 and form, prefabricated cover 12 outer, outer ring right angle is arc groove, outer ring right angle prefabricated cover 12 inner circle is right angle, connecting pawl 6 is distributed on arc groove, one end Y type leg connecting pawl 6 is coated in prefabricated section, and other end Y type leg is exposed at prefabricated cover outside.
As shown in Figure 6, collar prefabricated component 10 by prefabricated ring 13 be connected pawl 6 and form, connect pawl 6 and be distributed on prefabricated ring 13 internal diameter, one end Y type leg connecting pawl 6 is coated in prefabricated section, and other end Y type leg is exposed at outside prefabricated section.
As shown in Figure 7, connect pawl 6 two ends and be equipped with Y type leg.
Be only general principle of the present invention above, not impose any restrictions the present invention, the present invention of every foundation carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (6)
1. prevent the method for mould sand casting foundry goods scab, it is characterized in that, to sand mold moulding prefabricated corresponding site sand mold prefabricated component in advance, during moulding, sand mold prefabricated component is positioned over relevant position, insert sand compaction, prefabricated component connects pawl to mix with molding sand, realize prefabricated component integrated with molding sand, concrete operations are as follows:
1) part molding sand will be inserted in sandbox;
2) judge easily to occur scab position according to casting structure;
3) prefabricated component of correspondence position is made;
4) in sandbox, place sand mold mould, easily occurring that the position of scab places sand mold prefabricated component in advance;
5) insert sand compaction, prefabricated component is fixed by molding sand;
6) molding.
2. the method preventing the scab of mould sand casting foundry goods according to claim 1, is characterized in that, described sand mold prefabricated component adopts chrome ore or zircon sand to make.
3. prevent the sand mold prefabricated component of mould sand casting foundry goods scab, it is characterized in that, comprise prefabricated section and be connected pawl, connect pawl to be included in prefabricated section and with prefabricated section compact siro spinning technology, connect pawl two ends and be equipped with Y type leg.
4. the sand mold prefabricated component preventing the scab of mould sand casting foundry goods according to claim 3, is characterized in that, described prefabricated section is various regular geometric figure or irregular figure.
5. the sand mold prefabricated component preventing the scab of mould sand casting foundry goods according to claim 3, it is characterized in that, described prefabricated component can be splicing construction.
6. the sand mold prefabricated component preventing the scab of mould sand casting foundry goods according to claim 3, is characterized in that, described connection pawl is metal claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186005.2A CN104826986A (en) | 2015-04-20 | 2015-04-20 | Method used for preventing sand adhesion of sand mould castings, and sand mould prefabricated components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186005.2A CN104826986A (en) | 2015-04-20 | 2015-04-20 | Method used for preventing sand adhesion of sand mould castings, and sand mould prefabricated components |
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| Publication Number | Publication Date |
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| CN104826986A true CN104826986A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510186005.2A Pending CN104826986A (en) | 2015-04-20 | 2015-04-20 | Method used for preventing sand adhesion of sand mould castings, and sand mould prefabricated components |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150106A (en) * | 2017-06-29 | 2017-09-12 | 大连金河铸造有限公司 | Improve the casting technique and prefabricated sand core structure of sand wedge angle position quality |
| CN110508791A (en) * | 2019-09-23 | 2019-11-29 | 共享装备股份有限公司 | Riser positioning device |
| CN110576150A (en) * | 2019-10-24 | 2019-12-17 | 上海宝钢铸造有限公司 | Manufacturing method for improving flatness of casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483536A (en) * | 2003-08-12 | 2004-03-24 | 陈振华 | Technology for producing wear-resisting compound material |
| US20100139884A1 (en) * | 2006-11-10 | 2010-06-10 | Nemak Dillingen Gmbh | Casting mould for casting a cast part and use of such a casting mould |
| CN201565554U (en) * | 2009-08-11 | 2010-09-01 | 山东隆基机械股份有限公司 | Sand mold for casing automobile braking disc marks |
| CN102773409A (en) * | 2012-07-24 | 2012-11-14 | 滁州金诺实业有限公司 | Method for manufacturing casting blank of die for inner containers of household appliances on basis of metal cavity with cold iron structure |
| CN103170576A (en) * | 2013-04-02 | 2013-06-26 | 衡阳风顺车桥有限公司 | Technology for casting thick-wall steel casting with thin and long inner hole |
| CN203330359U (en) * | 2013-06-14 | 2013-12-11 | 云南云海玛钢有限公司 | Casting inner bore thread precisely-cast sand mould |
-
2015
- 2015-04-20 CN CN201510186005.2A patent/CN104826986A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483536A (en) * | 2003-08-12 | 2004-03-24 | 陈振华 | Technology for producing wear-resisting compound material |
| US20100139884A1 (en) * | 2006-11-10 | 2010-06-10 | Nemak Dillingen Gmbh | Casting mould for casting a cast part and use of such a casting mould |
| CN201565554U (en) * | 2009-08-11 | 2010-09-01 | 山东隆基机械股份有限公司 | Sand mold for casing automobile braking disc marks |
| CN102773409A (en) * | 2012-07-24 | 2012-11-14 | 滁州金诺实业有限公司 | Method for manufacturing casting blank of die for inner containers of household appliances on basis of metal cavity with cold iron structure |
| CN103170576A (en) * | 2013-04-02 | 2013-06-26 | 衡阳风顺车桥有限公司 | Technology for casting thick-wall steel casting with thin and long inner hole |
| CN203330359U (en) * | 2013-06-14 | 2013-12-11 | 云南云海玛钢有限公司 | Casting inner bore thread precisely-cast sand mould |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150106A (en) * | 2017-06-29 | 2017-09-12 | 大连金河铸造有限公司 | Improve the casting technique and prefabricated sand core structure of sand wedge angle position quality |
| CN107150106B (en) * | 2017-06-29 | 2024-04-16 | 大连金河铸造有限公司 | Casting process for improving quality of sand sharp corner part and prefabricated sand core structure |
| CN110508791A (en) * | 2019-09-23 | 2019-11-29 | 共享装备股份有限公司 | Riser positioning device |
| CN110576150A (en) * | 2019-10-24 | 2019-12-17 | 上海宝钢铸造有限公司 | Manufacturing method for improving flatness of casting |
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Application publication date: 20150812 |
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| RJ01 | Rejection of invention patent application after publication |