CN106734909A - Lost foam casting process - Google Patents
Lost foam casting process Download PDFInfo
- Publication number
- CN106734909A CN106734909A CN201611175327.8A CN201611175327A CN106734909A CN 106734909 A CN106734909 A CN 106734909A CN 201611175327 A CN201611175327 A CN 201611175327A CN 106734909 A CN106734909 A CN 106734909A
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- CN
- China
- Prior art keywords
- casting
- beam module
- sandbox
- mould
- sand
- 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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Classifications
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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
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of lost foam casting process, comprise the following steps：1) Foam Pattern or running gate system are produced using metal foaming mould in forming machine；2) apperance and running channel are bonded into mould beam module；3) leaching is carried out to mould beam module using coating machine and hangs water based paint；4) mould beam module is put into sandbox, inserts dry sand；5) sand grains and mould beam module are dried, drying temperature is 20 40 DEG C, drying time is 18 24 hours；6) plain bumper vibrations moulding makes dry sand be filled to sandbox inner chamber and consolidation, and sprue cup is placed with plastic film seal sandbox；7) cast makes Foam Pattern gasification disappearance in sandbox form casting, vacuum suction during cast；8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.The lost foam casting process, has the advantages that casting property can be improved.
Description
Technical field
The present invention relates to a kind of lost foam casting process.
Background technology
Lost foam casting is described as " 21 century casting technology " and " green casting technology ", in casting iron field extensive use
And popularization, casting quality is greatly improved so that client expects constantly enhancing to steel-casting quality, promotes cast steel enterprise outstanding
It is more and more that it is that medium-sized and small enterprises put into terms of Technology of EPC.Technology of EPC be by with casting dimension shape
The similar foamed plastic model of shape is bonded and is combined into model cluster, after brushing refractory coating and drying, is embedded in vibration in drystone sand
Moulding, pours into a mould liquid metals under certain condition, model is gasified and occupies modal position, and required casting is formed after solidification cooling
Method.Compared with traditional foundry engieering, due to making model using the foamed plastics for easily gasifying, without modulus and making
Core rod, without die joint, thus non-trimming burr, it is dirty that the technical process has abandoned traditional handicraft complex procedures, the course of work completely
The dye unfavorable factor that thing discharge capacity is big, labor strength is high, is accomplished that a kind of operation is simple, and efficiency high is near non-harmful
Clean manufacturing.Production line is simple and practical, small investment, is especially suitable for the technological transformation of old factory building, and infrastructure mainly falls in knockout
And the sand treatment Ministry of worker, therefore construction area and construction volume are less.Multiple operation system can be used, can be worked using the stage again
System, production line operation is simple, and management is easy.Strong applicability, without worrying eliminating for old product, as long as product casting newly developed
Width can be produced on line in certain scope.
Current lost foam casting process, is all to carry out sand loading case, cast step after first being dried to refractory coating again,
This processing step has the drawback that：The moisture contained in sand grains not only influences the degree of packing of sand pack, and can influence
The drying effect of refractory coating, so as to influence casting property.
The content of the invention
In view of this, it is an object of the invention to provide a kind of lost foam casting process, making it have can improve casting property
Advantage.
The present invention solves above-mentioned technical problem, a kind of lost foam casting process, including following step by following technological means
Suddenly：
1) Foam Pattern or running gate system are produced using metal foaming mould in forming machine；
2) apperance and running channel are bonded into mould beam module；
3) leaching is carried out to mould beam module using coating machine and hangs water based paint；
4) mould beam module is put into sandbox, inserts dry sand；
5) sand grains and mould beam module are dried, drying temperature is 20-40 DEG C, drying time is 18-24 hours；
6) plain bumper vibrations moulding makes dry sand be filled to sandbox inner chamber and consolidation, and cast gate is placed with plastic film seal sandbox
Cup；
7) cast makes Foam Pattern gasification disappearance in sandbox form casting, vacuum suction during cast；
8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.
Further, when 5) step is dried to sand grains and mould beam module, sand grains is squeezed, and extruding force is 30-
50N。
Further, sand grains is quartz sand.
Beneficial effects of the present invention：The invention discloses a kind of lost foam casting process, comprise the following steps：1) in shaping
Foam Pattern or running gate system are produced using metal foaming mould in machine；2) apperance and running channel are bonded into mould beam module；3) make
Leaching is carried out to mould beam module with coating machine and hangs water based paint；4) mould beam module is put into sandbox, inserts dry sand；5) to sand grains and mould
Beam module is dried, and drying temperature is 20-40 DEG C, and drying time is 18-24 hours；6) plain bumper vibrations moulding fills dry sand
Sandbox inner chamber and consolidation are filled out, sprue cup is placed with plastic film seal sandbox；7) cast makes Foam Pattern gasification in sandbox disappear
Form casting, vacuum suction during cast；8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.The disappearance
Die cast technique, drying is synchronized to sand grains and refractory coating, it is to avoid the degree of packing of the moisture contained in sand grains to back-up sand
And the dryness fraction of refractory coating is impacted, and effectively increases casting property.
Specific embodiment
The present invention is better illustrated with reference to embodiment.
Embodiment 1
A kind of lost foam casting process, comprises the following steps：
1) Foam Pattern or running gate system are produced using metal foaming mould in forming machine；
2) apperance and running channel are bonded into mould beam module；
3) leaching is carried out to mould beam module using coating machine and hangs water based paint；
4) mould beam module is put into sandbox, inserts dry sand, sand grains is quartz sand；
5) sand grains and mould beam module are dried, drying temperature is 20 DEG C, and drying time is 18 hours, to sand grains and mould
When beam module is dried, sand grains is set to be squeezed, extruding force is 30N；
6) plain bumper vibrations moulding makes dry sand be filled to sandbox inner chamber and consolidation, and cast gate is placed with plastic film seal sandbox
Cup；
7) cast makes Foam Pattern gasification disappearance in sandbox form casting, vacuum suction during cast；
8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.
Embodiment 2
A kind of lost foam casting process, comprises the following steps：
1) Foam Pattern or running gate system are produced using metal foaming mould in forming machine；
2) apperance and running channel are bonded into mould beam module；
3) leaching is carried out to mould beam module using coating machine and hangs water based paint；
4) mould beam module is put into sandbox, inserts dry sand, sand grains is quartz sand；
5) sand grains and mould beam module are dried, drying temperature is 30 DEG C, and drying time is 20 hours, to sand grains and mould
When beam module is dried, sand grains is set to be squeezed, extruding force is 40N；
6) plain bumper vibrations moulding makes dry sand be filled to sandbox inner chamber and consolidation, and cast gate is placed with plastic film seal sandbox
Cup；
7) cast makes Foam Pattern gasification disappearance in sandbox form casting, vacuum suction during cast；
8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.
Embodiment 3
A kind of lost foam casting process, comprises the following steps：
1) Foam Pattern or running gate system are produced using metal foaming mould in forming machine；
2) apperance and running channel are bonded into mould beam module；
3) leaching is carried out to mould beam module using coating machine and hangs water based paint；
4) mould beam module is put into sandbox, inserts dry sand, sand grains is quartz sand；
5) sand grains and mould beam module are dried, drying temperature is 40 DEG C, and drying time is 24 hours, to sand grains and mould
When beam module is dried, sand grains is set to be squeezed, extruding force is 50N；
6) plain bumper vibrations moulding makes dry sand be filled to sandbox inner chamber and consolidation, and cast gate is placed with plastic film seal sandbox
Cup；
7) cast makes Foam Pattern gasification disappearance in sandbox form casting, vacuum suction during cast；
8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (3)
1. a kind of lost foam casting process, it is characterised in that comprise the following steps：
1) Foam Pattern or running gate system are produced using metal foaming mould in forming machine；
2) apperance and running channel are bonded into mould beam module；
3) leaching is carried out to mould beam module using coating machine and hangs water based paint；
4) mould beam module is put into sandbox, inserts dry sand；
5) sand grains and mould beam module are dried, drying temperature is 20-40 DEG C, drying time is 18-24 hours；
6) plain bumper vibrations moulding makes dry sand be filled to sandbox inner chamber and consolidation, and sprue cup is placed with plastic film seal sandbox；
7) cast makes Foam Pattern gasification disappearance in sandbox form casting, vacuum suction during cast；
8) after casting cooling, taking-up carries out knockout and excision casting head of casting cleaning.
2. lost foam casting process according to claim 1, it is characterised in that 5) step sand grains and mould beam module are carried out
During drying, sand grains is set to be squeezed, extruding force is 30-50N.
3. lost foam casting process according to claim 2, it is characterised in that sand grains is quartz sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175327.8A CN106734909A (en) | 2016-12-19 | 2016-12-19 | Lost foam casting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175327.8A CN106734909A (en) | 2016-12-19 | 2016-12-19 | Lost foam casting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106734909A true CN106734909A (en) | 2017-05-31 |
Family
ID=58891098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611175327.8A Pending CN106734909A (en) | 2016-12-19 | 2016-12-19 | Lost foam casting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106734909A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486544A (en) * | 2017-08-22 | 2017-12-19 | 安徽大卫模具有限公司 | A kind of lost foam casting process |
| CN109839030A (en) * | 2019-03-25 | 2019-06-04 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of base steel metal/block stone composite material and its moulding process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000244A (en) * | 1989-12-04 | 1991-03-19 | General Motors Corporation | Lost foam casting of dual alloy engine block |
| CN101417327A (en) * | 2007-10-24 | 2009-04-29 | 大连核心铸造技术工程研究所 | Vanishing die forging technique |
| CN104439075A (en) * | 2014-11-28 | 2015-03-25 | 柳州市正龙机械制造有限公司 | Evanescent mode casting technology |
| CN104874734A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Full mold casting method |
| CN104874733A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Lost foam casting process |
-
2016
- 2016-12-19 CN CN201611175327.8A patent/CN106734909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000244A (en) * | 1989-12-04 | 1991-03-19 | General Motors Corporation | Lost foam casting of dual alloy engine block |
| CN101417327A (en) * | 2007-10-24 | 2009-04-29 | 大连核心铸造技术工程研究所 | Vanishing die forging technique |
| CN104439075A (en) * | 2014-11-28 | 2015-03-25 | 柳州市正龙机械制造有限公司 | Evanescent mode casting technology |
| CN104874734A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Full mold casting method |
| CN104874733A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Lost foam casting process |
Non-Patent Citations (2)
| Title |
|---|
| 明哲，于东林，赵丽萍: "《工程材料及机械制造基础》", 31 October 2012 * |
| 邓宏运: "《消失模铸造及实型铸造技术手册》", 31 January 2013 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486544A (en) * | 2017-08-22 | 2017-12-19 | 安徽大卫模具有限公司 | A kind of lost foam casting process |
| CN107486544B (en) * | 2017-08-22 | 2019-10-22 | 安徽大卫模具有限公司 | A kind of lost foam casting process |
| CN109839030A (en) * | 2019-03-25 | 2019-06-04 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of base steel metal/block stone composite material and its moulding process |
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Application publication date: 20170531 |
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