CN102836966A - Casting cooling process for shell of central refrigeration compressor - Google Patents
Casting cooling process for shell of central refrigeration compressor Download PDFInfo
- Publication number
- CN102836966A CN102836966A CN2012103804496A CN201210380449A CN102836966A CN 102836966 A CN102836966 A CN 102836966A CN 2012103804496 A CN2012103804496 A CN 2012103804496A CN 201210380449 A CN201210380449 A CN 201210380449A CN 102836966 A CN102836966 A CN 102836966A
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- foundry goods
- casting
- cooling
- sand mold
- sand
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- 238000005266 casting Methods 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title abstract description 10
- 238000005057 refrigeration Methods 0.000 title abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000012805 post-processing Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010583 slow cooling Methods 0.000 abstract description 2
- 238000007669 thermal treatment Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The invention discloses a casting cooling process for a shell of a central refrigeration compressor. The casting cooling process comprises the following steps of: cooling a casting in a sand mold to be below 200 DEG C; opening the sand mold; taking the casting out and cleaning. According to the scheme, the casting is cooled in the sand mold along with the sand mold, so that a casting slow cooling effect in a thermal treatment furnace is achieved, and artificial aging treatment is substituted. The labor intensity is greatly relieved, the energy is saved, and the floor is saved.
Description
Technical field
The invention belongs to field of machining and machinebuilding technology, especially belong to casting technique and thermal treatment process technology field; Be particularly related to process for cooling technology in the central refrigerant compressor housing casting process.
Background technology
In foundry production, because casting structure and pouring technology cause the cooling velocity at each position of foundry goods different; Therefore, all there is certain internal stress in cast back foundry goods, and this internal stress makes foundry goods when following process or use, be prone to deform and ftracture.Existing technology is that the laggard pedestrian of foundry goods moulding is imitated processing man-hour.That is: with the foundry goods heat-treatment furnace of packing into, be warmed up to 500 ℃～600 ℃ with certain speed, the insulation certain hour is again with stove cooling, the air cooling of coming out of the stove at last.Though above technology can be eliminated the foundry goods internal stress, exist not enough; It need heat foundry goods once more, wastes energy, and increases cost; The investment heat-treatment furnace, it is big to drop into manual work and labour intensity, needs the Shot Blasting surface quality of continuous castings after the heat treatment again, and cooling repeatedly, heating have prolonged the production cycle, are unfavorable for enhancing productivity.
Summary of the invention
The present invention discloses a kind of central refrigerant compressor housing casting process for cooling according to the deficiency of prior art.The purpose of this invention is to provide a kind of casting step and simplify, energy savings can improve the casting process for cooling of casting production efficiency.
The present invention realizes through following technical scheme:
Central authorities' refrigerant compressor housing casting process for cooling is characterized in that may further comprise the steps: sand mold is prepared, foundry goods is cast, foundry goods cools off and the foundry goods post processing;
Sand mold is prepared, and comprises Mold Making, moulding, mould assembly;
The foundry goods casting comprises the melting cast material, and casting die is poured into a mould;
Foundry goods cooling, after the foundry goods cast molding in casting die with below the mold cools down to 200 ℃, shake out takes out foundry goods, air cooling is to room temperature;
The foundry goods post processing comprises foundry goods behind the shake out is carried out ball blast, cleaning, check, ball blast again, antirust back warehouse-in.
Above-mentioned technology concrete steps are:
1, Mold Making is to make the resin sand mould according to the structural design of the drawing of rough casting.
2, moulding is that resin sand is inserted die for molding, forms sand mold, core.
3, mould assembly is that the sand mold of making, core are combined into the integral cast model.
4, melting is the material requirement according to foundry goods, in electric furnace, adds different elements by different proportion and is melted in the iron liquid.
5, cast be with the iron liquid that melts on request temperature inject casting model.
6, cooling is that the iron liquid that melts solidifies the process that forms foundry goods gradually in model.
7, shake out is a foundry goods when being cooled to below 200 ℃, utilizes mechanical forces to shake off molding sand, removes dead head.From model, take out the foundry goods of coagulation forming, be exposed to cool to room temperature in the air, knock again and remove the sand that sticks to cast(ing) surface.
8, for the first time ball blast is that the foundry goods behind the shake out is sent into shot blast room, the jettisoning surfaces externally and internally adhere to residue.
9, the cleaning be by hand or mechanical grinding fall metal or the nonmetal unnecessary material that combines with the foundry goods surfaces externally and internally.
10, check is by relevant criterion the foundry goods of polishing to be carried out performance rating, and judges whether foundry goods is qualified.
11, ball blast is that the qualified foundry goods after the check is sent into shot blast room for the second time, improves the surface quality of foundry goods.
12, antirust is that the foundry goods surfaces externally and internally behind the second time ball blast is covered last layer antirust agent, isolated with air, prevents the cast iron oxidation.
13, warehouse-in is that complete qualified casting is got into the stock, and delivery is waited in the packing back.
Helpfulness of the present invention: when in sand mold, being cooled to foundry goods below 200 ℃, open sand mold, the taking-up casting cleaning is clean.This scheme through foundry goods in sand mold with type cooling, the foundry goods slow cooling effect that reaches in the heat-treatment furnace to be possessed has replaced the artificial aging processing.Reduce labor intensity greatly, energy savings saves space.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
The specific embodiment
Through embodiment the present invention is further described below; Present embodiment only is used for the present invention is further explained; But can not be interpreted as the restriction to protection domain of the present invention, those skilled in the art can make the scope that some nonessential improvement and adjustment belong to the present invention's protection according to the content of the invention described above.
Embodiment 1
With certain central refrigeration compressor body is example, and these product process flow concrete steps are following:
1, makes the resin sand metal die according to the structural design of the drawing of rough casting.
2, in the metal die that makes, produce external form and 2 cores up and down with resin sand.
3, the sand mold that will make, core are combined into integrated poured model.
4, by the material requirement of foundry goods, in electric furnace, add different elements and be melted in the iron liquid by different proportion.
5, with the iron liquid that melts on request temperature inject cast model, cooling then.
6, when foundry goods is cooled to 200 ℃, the beginning shake out is removed dead head.From model, take out the foundry goods of coagulation forming, be exposed to cool to room temperature in the air, knock again and remove the sand that sticks to cast(ing) surface.
7, the foundry goods behind the shake out is sent into shot blast room, carries out the ball blast first time, the jettisoning surfaces externally and internally adhere to residue.
8, first dressing polishes off the metal or the nonmetal unnecessary material that combine with the foundry goods surfaces externally and internally.
9, by relevant criterion the foundry goods of polishing is carried out performance rating, and judge whether foundry goods is qualified.
10, the qualified foundry goods after will checking is sent into shot blast room, carries out the ball blast second time, improves the surface quality of foundry goods.
11, for the second time the foundry goods surfaces externally and internally behind the ball blast to spray one deck antirust oil antirust, through packing warehouse-in after the assay was approved.
This product requirement material is ASTM48-40B, is equivalent to HT350.By drawing, must carry out 3.83～4.59MPa hydraulic bursting test after the fine finishining of initial workpiece foundry goods, must carry out 1.62MPa withstand voltage test and 1.28MPa leak test after each foundry goods fine finishining, these tests are all controlled very tight to the internal stress of foundry goods.By above technological process, adopt the present invention's technology to produce central refrigeration compressor body and reach requirement, meet the index of correlation regulation.
Claims (2)
1. a central refrigerant compressor housing casting process for cooling is characterized in that may further comprise the steps: sand mold preparation, foundry goods casting, foundry goods cooling and foundry goods post processing;
Sand mold is prepared, and comprises Mold Making, moulding, mould assembly;
The foundry goods casting comprises the melting cast material, and casting die is poured into a mould;
Foundry goods cooling, after the foundry goods cast molding in casting die with below the mold cools down to 200 ℃, shake out takes out foundry goods, air cooling is to room temperature;
The foundry goods post processing comprises foundry goods behind the shake out is carried out ball blast, cleaning, check, ball blast again, antirust back warehouse-in.
2. central refrigerant compressor housing casting process for cooling according to claim 1 is characterized in that: said sand mold prepares to comprise structural design preparing resin sand mo(u)ld tool according to the drawing of rough casting, resin sand is inserted die for molding forms sand mold, core moulding and the sand mold that will make, core and is combined into the integral cast model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103804496A CN102836966A (en) | 2012-10-10 | 2012-10-10 | Casting cooling process for shell of central refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103804496A CN102836966A (en) | 2012-10-10 | 2012-10-10 | Casting cooling process for shell of central refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102836966A true CN102836966A (en) | 2012-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103804496A Pending CN102836966A (en) | 2012-10-10 | 2012-10-10 | Casting cooling process for shell of central refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102836966A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862000A (en) * | 2014-04-04 | 2014-06-18 | 江苏力源金河铸造有限公司 | Vertical parting horizontal pouring casting technology for end cover casting core shell |
| CN104015002A (en) * | 2014-06-12 | 2014-09-03 | 靖江市顺达模具厂 | Method for machining air conditioner end cover |
| CN104191161A (en) * | 2014-06-12 | 2014-12-10 | 靖江市顺达模具厂 | Processing method of front end cover |
| CN104818422A (en) * | 2015-03-31 | 2015-08-05 | 安徽惠明机械制造有限公司 | Casting treatment technology |
| CN105563035A (en) * | 2016-01-06 | 2016-05-11 | 常州市蓝托金属制品有限公司 | Machining technology of machine shell cooling water way |
| CN109848371A (en) * | 2018-11-29 | 2019-06-07 | 奥夫尔科精铸机械（昆山）有限公司 | A kind of forming method and compressor of compressor case |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228383A (en) * | 1998-02-27 | 1999-09-15 | 张景辉 | Integral steel-casting middle groove with loading-unloading connecting pin |
| JP2004001097A (en) * | 2003-06-26 | 2004-01-08 | Koyama Chiyuukoushiyo:Kk | Component with aperture and its manufacturing method |
| CN101705349A (en) * | 2009-11-17 | 2010-05-12 | 东华大学 | Heat and vibration composite aging treatment method adopting residual heat of casting billets of cast iron rolls |
| CN102367536A (en) * | 2011-10-10 | 2012-03-07 | 陈伟军 | Casting method of SiO2-reinforced nodular cast iron-based brake disc |
-
2012
- 2012-10-10 CN CN2012103804496A patent/CN102836966A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228383A (en) * | 1998-02-27 | 1999-09-15 | 张景辉 | Integral steel-casting middle groove with loading-unloading connecting pin |
| JP2004001097A (en) * | 2003-06-26 | 2004-01-08 | Koyama Chiyuukoushiyo:Kk | Component with aperture and its manufacturing method |
| CN101705349A (en) * | 2009-11-17 | 2010-05-12 | 东华大学 | Heat and vibration composite aging treatment method adopting residual heat of casting billets of cast iron rolls |
| CN102367536A (en) * | 2011-10-10 | 2012-03-07 | 陈伟军 | Casting method of SiO2-reinforced nodular cast iron-based brake disc |
Non-Patent Citations (1)
| Title |
|---|
| 孙永泰: "大型柴油机缸套的铸造", 《大型铸锻件》, no. 04, 31 December 2006 (2006-12-31), pages 31 - 33 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862000A (en) * | 2014-04-04 | 2014-06-18 | 江苏力源金河铸造有限公司 | Vertical parting horizontal pouring casting technology for end cover casting core shell |
| CN103862000B (en) * | 2014-04-04 | 2016-04-27 | 江苏力源金河铸造有限公司 | A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique |
| CN104015002A (en) * | 2014-06-12 | 2014-09-03 | 靖江市顺达模具厂 | Method for machining air conditioner end cover |
| CN104191161A (en) * | 2014-06-12 | 2014-12-10 | 靖江市顺达模具厂 | Processing method of front end cover |
| CN104818422A (en) * | 2015-03-31 | 2015-08-05 | 安徽惠明机械制造有限公司 | Casting treatment technology |
| CN105563035A (en) * | 2016-01-06 | 2016-05-11 | 常州市蓝托金属制品有限公司 | Machining technology of machine shell cooling water way |
| CN109848371A (en) * | 2018-11-29 | 2019-06-07 | 奥夫尔科精铸机械（昆山）有限公司 | A kind of forming method and compressor of compressor case |
| CN109848371B (en) * | 2018-11-29 | 2021-04-02 | 奥夫尔科精铸机械（昆山）有限公司 | Compressor shell forming method and compressor |
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Application publication date: 20121226 |