CN102756101A - Method for producing cylinder cover of compressor of heavy duty truck - Google Patents
Method for producing cylinder cover of compressor of heavy duty truck Download PDFInfo
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- CN102756101A CN102756101A CN2012102487179A CN201210248717A CN102756101A CN 102756101 A CN102756101 A CN 102756101A CN 2012102487179 A CN2012102487179 A CN 2012102487179A CN 201210248717 A CN201210248717 A CN 201210248717A CN 102756101 A CN102756101 A CN 102756101A
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Abstract
The invention discloses a method for producing a cylinder cover of a compressor of a heavy duty truck, and adopts a box-free vertical molding line continuous manufacturing technology. The technology comprises the following steps: (1) using a core shooter to prepare a sand core, and assembling the prepared sand core into the whole shell mold of a forming casting; (2) preparing a sand mold on the production line with a molding external mold, that is, preparing a cavity for placing the whole shell mold of the forming casting and a sand mold for placing a concreting system; and 3), lowering the whole shell mold of the forming casting into the sand mold with well made molding line to cast the forming casting. The method has the advantages that the dosage of the precoated sand can be effectively reduced, so as to reduce the total gas emission quantity produced by the precoated sand during casting; and due to the high pressure head of the casting system, the casting can bear high pressure, the compactness of the whole casting is favorable, and particularly, air leakage caused by casting defects such as loose materials and cold shut on the thin wall of the inner cavity during pressure testing can be effectively reduced. According to the method, production efficiency of automated equipment can be effectively improved, and the qualified rate of the casting can be improved.
Description
Technical field
The present invention relates to a kind of foundry goods forming method; Belong to casting technology field; Particularly relate to a kind of mode that on vertical production line, adopts shell mould (foundry goods moulding) and tide mould sand type (running and feeding system) to combine, the method for producing a kind of heavy truck compressor cylinder cover.
Background technology
Usually its inner-cavity structure of cylinder cap under the situation is quite complicated, and the wall thickness thinnest part has only 6mm, also needs under the pressure of 8MPa, not reveal and the floating sand amount of cleannes of inner chamber is no more than 80 milligrams; A lot of companies have adopted different modes to carry out product development in different line; Cylinder cap processing technology on the production line generally is: first die casting, remove material handle, 6 bodies of roughing again behind the blanking; Position, fine finishining hole and profile make roughing and accurately machined benchmark always again.
But usually need the test through repeated multiple times, majority is all too high or manufacturing cost is high and abandon exploitation with percent defective.And when producing, the required precoated sand amount of whole shell mould is big, and casting cost is high; Following core difficulty is big; Production efficiency is slow, the more important thing is that whole shell mould gas forming amount is big, and the gas extraction system manufacture difficulty on the vertical line is far above horizontal line; So big shell mould gas forming amount is very unfavorable to the quality of cylinder head casting, especially the waste product of bleb class.
Summary of the invention
The object of the present invention is to provide a kind of production method of heavy truck compressor cylinder cover; Technical problem to be solved is to make it can effectively reduce the consumption of precoated sand; Thereby reduce total gas forming amount that precoated sand produces when watering, can effectively improve the production efficiency and raising casting qualified rate of automation equipment.
The object of the invention and solve its technical problem and adopt following technical scheme to realize.The production method of a kind of heavy truck compressor cylinder cover that proposes according to the present invention adopts the vertical mo(u)lding line continuous production processes of no case, and this technology may further comprise the steps:
1) manufactures core with core shooter, and the core that makes is combined as the whole shell mould that forms foundry goods;
2) on production line, produce sand mold with the moulding external mold, promptly produce the die cavity of the whole shell mould of placing the formation foundry goods and the sand mold of running gate system;
The whole shell mould that 3) will form foundry goods is lowered in the sand mold that mo(u)lding line makes and pours into a mould the formation foundry goods.
According to the production method of the embodiment of the invention, said step 2) in, produce with placing step 1) in form the sand mold of the shell mould die cavity of foundry goods and sprue that the external mold moulding is taken out of, cross gate, ingate, gas extraction system.
According to the production method of the embodiment of the invention, in the said step 3), the sand mold that said mo(u)lding line is produced is the tide mould sand sand mold; Said its shell mould of formation foundry goods is the precoated sand shell mould.
According to the production method of the embodiment of the invention, said shell mould only forms the foundry goods body, and the tide mould sand sand mold forms running gate system.
Production method of the present invention adopts the vertical mo(u)lding line of no case to produce continuously; On production line, produce the die cavity and the running gate system of placing the shell mould that forms foundry goods with the moulding external mold; Manufacture core with core shooter, and the core that makes is combined as a whole shell mould is lowered in the sand mold that mo(u)lding line makes and pours into a mould.
The method belongs to shell mould and tide mould sand sand mold process combined, and shell mould only forms the foundry goods body, and the tide mould sand sand mold forms running gate system.Avoid the required precoated sand amount of whole shell mould big like this, casting cost is high, and following core difficulty is big; Production efficiency is slow; The more important thing is that whole shell mould gas forming amount is big, and the gas extraction system manufacture difficulty on the vertical line is far above horizontal line, so big shell mould gas forming amount is very unfavorable to the quality of foundry goods described herein; Especially the waste product of bleb class
By technique scheme, the manufacturing technique method of heavy card cylinder cap of the present invention has following advantage:
Process of the present invention can effectively reduce the consumption of precoated sand, thereby reduces total gas forming amount that precoated sand produces when casting.
In addition, this method is because the pressure head of running gate system is high, and the pressure that bears of foundry goods is big, and the compactness of foundry goods integral body is good, the gas leakage that interior cavity thin-wall place takes place because of casting flaws such as material is loose, cold shuts when particularly effectively having reduced pressure testing.
At last, the novel production technology of the present invention can effectively improve the production efficiency and raising casting qualified rate of automation equipment.
Description of drawings
Shown in Figure 1 for being that the shell mould of formation foundry goods according to the invention is lowered to tide mould sand sand mold combination sketch map;
Shown in Figure 2 is sand mold sketch map of the present invention.
10: be lowered to the shell mould that forms foundry goods in the tide mould sand sand mold
20: the tide mould sand sand mold
30: sprue in the tide mould sand sand mold
40: gas extraction system in the tide mould sand sand mold
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment the manufacturing technique method of heavy card cylinder cap of the present invention is done further explain, but the present invention is not limited in following embodiment.
Embodiment 1
As illustrated in fig. 1 and 2, the method that production of the present invention heavily blocks cylinder cap is to adopt the vertical mo(u)lding line continuous production processes of no case, and the production stage that this technology comprises is following:
1) manufactures core with core shooter, and the core that makes is combined as the whole shell mould 10 that forms foundry goods;
2) on production line, produce sand mold with the moulding external mold; Promptly produce the die cavity of the whole shell mould that place to form foundry goods and the sand mold 20 of running gate system, mainly produce with placing step 1) in form the sand mold of the shell mould die cavity of foundry goods and sprue (sprue 20) that the external mold moulding is taken out of, cross gate, ingate, gas extraction system 40;
The whole shell mould that 3) will form foundry goods is lowered in the sand mold that mo(u)lding line makes and pours into a mould the formation foundry goods.
Above-mentioned to carry the sand mold that mo(u)lding line produces be the tide mould sand sand mold, and the shell mould that forms foundry goods is the precoated sand shell mould, and is as shown in Figure 2.
Process of the present invention belongs to shell mould and tide mould sand sand mold process combined, and shell mould only forms the foundry goods body, and the tide mould sand sand mold forms running gate system.Avoid the required precoated sand amount of whole shell mould big like this; Casting cost is high, and following core difficulty is big, and production efficiency is slow; The more important thing is that whole shell mould gas forming amount is big; And the gas extraction system manufacture difficulty on the vertical line is far above horizontal line, and so big shell mould gas forming amount is very unfavorable to the quality of said cylinder head casting, especially the waste product of bleb class.
Process of the present invention can effectively reduce the consumption of precoated sand, thereby reduces total gas forming amount that precoated sand produces when watering.This method is because the pressure head of running gate system is high, and the pressure that bears of foundry goods is big in addition, and the compactness of foundry goods integral body is good, the gas leakage that interior cavity thin-wall place takes place because of casting flaws such as material is loose, cold shuts when particularly effectively having reduced pressure testing.
In a word, the novel production technology of the present invention can effectively improve the production efficiency and raising casting qualified rate of automation equipment.
Compliance test result
Through the test of other technological parameters, volume shipment on the product of the present invention can be stablized the quality control requirement that satisfies the client.Controlling well influences factors such as the people of product quality, machine, material, method, ring in the production process, and product quality is relatively stable.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Former every technical scheme content of the present invention that do not break away from, all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (4)
1. the production method of a heavy truck compressor cylinder cover, it is characterized in that: adopt the vertical mo(u)lding line continuous production processes of no case, this technology may further comprise the steps:
1) manufactures core with core shooter, and the core that makes is combined as the whole shell mould that forms foundry goods;
2) on production line, produce sand mold with the moulding external mold, promptly produce the die cavity of the whole shell mould of placing the formation foundry goods and the sand mold of running gate system;
The whole shell mould that 3) will form foundry goods is lowered in the sand mold that mo(u)lding line makes and pours into a mould the formation foundry goods.
2. the production method of heavy truck compressor cylinder cover according to claim 1; It is characterized in that: step 2) in, produce with placing step 1) in form the sand mold of the shell mould die cavity of foundry goods and sprue that the external mold moulding is taken out of, cross gate, ingate, gas extraction system.
3. the production method of heavy truck compressor cylinder cover according to claim 1 is characterized in that: in the step 3), the sand mold that said mo(u)lding line is produced is the tide mould sand sand mold; Said its shell mould of formation foundry goods is the precoated sand shell mould.
4. the production method of heavy truck compressor cylinder cover according to claim 3 is characterized in that: said shell mould only forms the foundry goods body, and the tide mould sand sand mold forms running gate system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102487179A CN102756101A (en) | 2012-07-18 | 2012-07-18 | Method for producing cylinder cover of compressor of heavy duty truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102487179A CN102756101A (en) | 2012-07-18 | 2012-07-18 | Method for producing cylinder cover of compressor of heavy duty truck |
Publications (1)
| Publication Number | Publication Date |
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| CN102756101A true CN102756101A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102487179A Pending CN102756101A (en) | 2012-07-18 | 2012-07-18 | Method for producing cylinder cover of compressor of heavy duty truck |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084541A (en) * | 2013-01-31 | 2013-05-08 | 贵州英吉尔机械制造有限公司 | Forming technology of air cylinder cover casting |
| CN103433428A (en) * | 2013-09-12 | 2013-12-11 | 赵秋会 | Composite casting method |
| CN105618686A (en) * | 2016-03-29 | 2016-06-01 | 安徽新宁装备股份有限公司 | Forming technology for sand mold casting head and technology structure of forming technology |
| CN106493310A (en) * | 2016-10-14 | 2017-03-15 | 安徽大天铸业有限责任公司 | Shell casting method is covered in a kind of tide mould sand high pressure moulding |
| CN107186199A (en) * | 2016-03-14 | 2017-09-22 | 上海日立电器有限公司 | Gravity foundry technology |
| CN107900284A (en) * | 2017-10-11 | 2018-04-13 | 浙江大学城市学院 | A kind of manufacturing process of cylinder head |
| CN113333671A (en) * | 2021-06-08 | 2021-09-03 | 河南柴油机重工有限责任公司 | Casting method of high-speed high-power diesel engine cylinder cover |
Citations (4)
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| JP2000061582A (en) * | 1998-08-26 | 2000-02-29 | Nissan Diesel Motor Co Ltd | Method for molding shell core |
| CN1927505A (en) * | 2006-09-26 | 2007-03-14 | 西峡县西泵特种铸造有限公司 | High nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe and casting method |
| CN201880860U (en) * | 2010-11-27 | 2011-06-29 | 大连远景铸造有限公司 | Precoated sand shell modeling mold |
| CN102476168A (en) * | 2010-11-27 | 2012-05-30 | 大连远景铸造有限公司 | Covering shell modeling process |
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2012
- 2012-07-18 CN CN2012102487179A patent/CN102756101A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000061582A (en) * | 1998-08-26 | 2000-02-29 | Nissan Diesel Motor Co Ltd | Method for molding shell core |
| CN1927505A (en) * | 2006-09-26 | 2007-03-14 | 西峡县西泵特种铸造有限公司 | High nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe and casting method |
| CN201880860U (en) * | 2010-11-27 | 2011-06-29 | 大连远景铸造有限公司 | Precoated sand shell modeling mold |
| CN102476168A (en) * | 2010-11-27 | 2012-05-30 | 大连远景铸造有限公司 | Covering shell modeling process |
Non-Patent Citations (1)
| Title |
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| 黄松等: "解决水腔粘砂提高气缸盖内腔清洁度", 《2012（第22届）重庆市铸造年会论文集》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084541A (en) * | 2013-01-31 | 2013-05-08 | 贵州英吉尔机械制造有限公司 | Forming technology of air cylinder cover casting |
| CN103433428A (en) * | 2013-09-12 | 2013-12-11 | 赵秋会 | Composite casting method |
| CN103433428B (en) * | 2013-09-12 | 2016-01-20 | 赵秋会 | A kind of composite casting method |
| CN107186199A (en) * | 2016-03-14 | 2017-09-22 | 上海日立电器有限公司 | Gravity foundry technology |
| CN107186199B (en) * | 2016-03-14 | 2019-08-09 | 上海海立电器有限公司 | Gravity foundry technology |
| CN105618686A (en) * | 2016-03-29 | 2016-06-01 | 安徽新宁装备股份有限公司 | Forming technology for sand mold casting head and technology structure of forming technology |
| CN106493310A (en) * | 2016-10-14 | 2017-03-15 | 安徽大天铸业有限责任公司 | Shell casting method is covered in a kind of tide mould sand high pressure moulding |
| CN107900284A (en) * | 2017-10-11 | 2018-04-13 | 浙江大学城市学院 | A kind of manufacturing process of cylinder head |
| CN113333671A (en) * | 2021-06-08 | 2021-09-03 | 河南柴油机重工有限责任公司 | Casting method of high-speed high-power diesel engine cylinder cover |
| CN113333671B (en) * | 2021-06-08 | 2023-03-14 | 河南柴油机重工有限责任公司 | Casting method of high-speed high-power diesel engine cylinder cover |
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Application publication date: 20121031 |