CN102935504A - Die for improving thermal deformation of foamed aluminum die - Google Patents
Die for improving thermal deformation of foamed aluminum die Download PDFInfo
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- CN102935504A CN102935504A CN2012104880764A CN201210488076A CN102935504A CN 102935504 A CN102935504 A CN 102935504A CN 2012104880764 A CN2012104880764 A CN 2012104880764A CN 201210488076 A CN201210488076 A CN 201210488076A CN 102935504 A CN102935504 A CN 102935504A
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- die
- mould
- foamed aluminium
- foamed aluminum
- thermal deformation
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Abstract
The invention discloses a die for improving thermal deformation of a foamed aluminum die. The die is made of plastic die steel 3Cr2Mo; the surface of the die is machined; a bottom plate and the periphery of the die are respectively machined to form hook-shaped circular rings with certain intervals; and the hook-shaped circular rings form independent regions. The maximum length, width and height of the foamed aluminum produced by using the die machined by using the process can be up to 2600mm, 1000mm and 600mm respectively; and in addition, the die has the advantages of complete shape, small deformation and convenience in demoulding.
Description
Technical field
The present invention relates to belong to foamed aluminium equipment manufacturing technology field, be specifically related to improve in a kind of super large-scale foam aluminium plate Design of Dies the mould of foamed aluminium mold hot distortion.
Background technology
Foamed aluminium is a kind of similar foamed light metal material of the countless bubbles that distribute in aluminum substrate, and general porosity is 40%-98%, and it has the feature of bubble and metal simultaneously concurrently, is the integrated engineering material of a kind of novel function and structure.Foamed aluminium has that porosity is high, density is low and the characteristics such as specific area is large, thereby has the characteristics such as sound-absorbing, heat insulation, energy-absorbing, bradyseism and electromagnetic shielding.This material is with a wide range of applications, and can be applied to the fields such as traffic, building, metallurgy, machinery, communication, chemical industry and aerospace engineering, becomes gradually in recent years one of China, Japan and the heat subject of country in investigation of materials such as American-European.
Because the interior new demand to following material of world wide, add domestic continuous attention to environmental protection, the field such as energy-conservation, promoted the development at home of foamed aluminium industry, but at present domestic research for the foamed aluminium industry is confined to the moulding technique aspect mostly, and very few for the research of foamed aluminium mould aspect, in particular for producing the mould of super-huge foamed aluminium.At present foamed aluminium production industry; the type of cooling of foamed aluminium after moulding generally is along with the mould Forced water cooling; can be known by thermodynamics knowledge; the mould of same material; dimensions is larger; the high temperature fluent metal of the filling in the mould is more; its amount of stored heat is just more; just larger in especially spray water in the Quench process suffered internal stress of cooling so; if mould is not well protected; then can produce huge distortion; not only can cause the foamed aluminium product after the moulding to take out from mould smoothly; and can reduce the mold use life-span, therefore the direct economy consequence of its generation is the increase of production cost, how effectively to reduce the development that distortion that mould produces in the process of catching a cold and being heated repeatedly hampers the foamed aluminium die industry always.The exploitation of foamed aluminium practical system technology for making that ship heavy industry 725 has taken the lead in realizing at home at present, and but mould and the acquisition of having prepared the earliest the foamed aluminium of the 1500mm that engineering is used * 500mm standard specification are used, and the foamed aluminium that most of companies produce generally all rests on 600mm * 600mm or 500mm * 500mm level, mostly be most at present 800mm * 800mm abroad, why this situation can occur, wherein one of factor is exploitation and the application that is limited by the foamed aluminium mould.
Summary of the invention
The objective of the invention is provides a kind of new technology, the new method that can effectively avoid the die deformation problem for the present large problem of existing die deformation in producing large-size foamed aluminum sheet material process.The mould that adopts this processes to form, the foamed aluminium full-size of producing can reach 2600mm * 1000mm * 600mm, and shape is complete, and die deformation is little, is convenient to the demoulding.
The present invention adopts following technical scheme:
1) aspect the selection of mold material, adopts plastic die steel 3Cr
2Mo, 3Cr
2The Mo comprehensive mechanical property is good, and quenching degree is high, can make the steel of larger cross-section obtain more uniform hardness, and have good polishing performance, and mold surface finish is high.Show by experiment when using this steel mfg. moulding die, both guaranteed the mold use performance, avoid again repeatedly be heated and cooling procedure in caused die deformation.
2) surface of mould processed processing, the base plate of mould and all be processed into the ditch shape annulus that keeps one by one a determining deviation all around, these annulus have just consisted of isolated one by one zone.
Aspect the processing of mould, most mould producer all is distortion that the mode of employing installation reinforcement stops mould, has both increased the weight of mould, has increased again the production cost of foamed aluminium.Practice shows, this improvement of the present invention is applicable to production process fully, because these " isolated island zones " can stop the transmittance process of internal stress in the material effectively in the process of mould expanded by heating and cooling contraction, reduce the suffered effect of stress of mould, prolong the mold use life-span, reduced production cost; Simultaneously this improvement has also increased the contact area of mould and cooling medium (air, water, wet goods), and product can be cooled off fast, has improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of ditch shape annulus in the mould of the present invention, and Fig. 2 is its profile.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
1, the material that adopts of the embodiment of the invention is 3Cr
2Mo mould steel, chemical composition is as shown in the table:
3Cr
2The chemical composition of Mo steel (GB/T1299-2000) w/%
| C | Si | Mn | P | S | Cr | Mo | Ni |
| 0.28～0.40 | 0.2～0.8 | 0.6～1.0 | ≤0.03 | ≤0.03 | 1.4～2.0 | 0.30～0.55 | 0.85～1.15 |
In order to verify the feasibility of this material, we adopt the method for experiment to compare original material and the present institute's deformation of the material of using after repeatedly being heated and cooling off, and the former employed material of this mould is 3Cr
2W
8V, the foamed aluminium mould major defect in use of this kind material is that fragility is large, and thermal fatigue resistance is inadequate, easily produces the defectives such as be full of cracks, distortion when standing rapid heat cycle.
Experimentation is employed to be 3Cr
2Mo mould steel and 3Cr
2W
8The specification of V mould steel is length * wide * height=15cm * 5cm * 1cm, experimentation is divided into two groups, one group is that the surface does not have treated sheet material, another group is through the sheet material after the surperficial isolated island formula processing, testing employed equipment has digital display altimeter, gasoline spraying firelock, strong cold water rifle, and experimental data is shown in following table 1,2:
The surperficial undressed sheet material of table 1
The sheet material that process through the isolated island formula on table 2 surface
Data show by experiment, and no matter whether the surface through processing, repeatedly be heated and cooling condition under, 3Cr
2The performance of Mo mould steel sheet material all is better than 3Cr
2W
8The performance of V.
2, the present invention processes base plate and the surrounded surface of trapezoidal mould, utilize " isolated island formula " structure that material deformation is enclosed in the particular range, thereby reduce water-cooled zone 2 drastic deformation to the influence at other positions, the finished surface schematic diagram as depicted in figs. 1 and 2, formed ditch shape annulus 1 zone at die surface, form and cut off annular groove, water-cooled zone 2 drastic deformation are cut off the impact at other positions.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (1)
1. a mould that improves the distortion of foamed aluminium mold hot is characterized in that, mold material adopts plastic die steel 3Cr
2Mo, and the surface of mould processed processing, the base plate of mould and all be processed into the ditch shape annulus that keeps one by one a determining deviation all around, ditch shape annulus just consists of an isolated zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104880764A CN102935504A (en) | 2012-11-27 | 2012-11-27 | Die for improving thermal deformation of foamed aluminum die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104880764A CN102935504A (en) | 2012-11-27 | 2012-11-27 | Die for improving thermal deformation of foamed aluminum die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102935504A true CN102935504A (en) | 2013-02-20 |
Family
ID=47694443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104880764A Pending CN102935504A (en) | 2012-11-27 | 2012-11-27 | Die for improving thermal deformation of foamed aluminum die |
Country Status (1)
| Country | Link |
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| CN (1) | CN102935504A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399965A (en) * | 2014-12-11 | 2015-03-11 | 四川元泰达有色金属材料有限公司 | Novel foamed aluminum mold deformation preventing support device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375905Y (en) * | 1999-01-29 | 2000-04-26 | 郭金裕 | Forming die for integral air conditioner exhaust outlet structure |
| CN2503604Y (en) * | 2001-07-24 | 2002-07-31 | 界龙工业股份有限公司 | Semi-conductor plastic capsulation mould |
| CN101947809A (en) * | 2009-06-16 | 2011-01-19 | 湖南邱则有专利战略策划有限公司 | Molding die for structural bottom plate of die shell component |
| CN201890912U (en) * | 2010-07-06 | 2011-07-06 | 浙江晨龙锯床股份有限公司 | Combined die for producing large foamed aluminium |
| CN202358310U (en) * | 2011-11-01 | 2012-08-01 | 哈尔滨飞机工业集团有限责任公司 | Long mold |
| CN202420092U (en) * | 2011-10-19 | 2012-09-05 | 合肥美的荣事达电冰箱有限公司 | Structure for preventing surface of outer frame of inner container of refrigerator from deforming |
-
2012
- 2012-11-27 CN CN2012104880764A patent/CN102935504A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375905Y (en) * | 1999-01-29 | 2000-04-26 | 郭金裕 | Forming die for integral air conditioner exhaust outlet structure |
| CN2503604Y (en) * | 2001-07-24 | 2002-07-31 | 界龙工业股份有限公司 | Semi-conductor plastic capsulation mould |
| CN101947809A (en) * | 2009-06-16 | 2011-01-19 | 湖南邱则有专利战略策划有限公司 | Molding die for structural bottom plate of die shell component |
| CN201890912U (en) * | 2010-07-06 | 2011-07-06 | 浙江晨龙锯床股份有限公司 | Combined die for producing large foamed aluminium |
| CN202420092U (en) * | 2011-10-19 | 2012-09-05 | 合肥美的荣事达电冰箱有限公司 | Structure for preventing surface of outer frame of inner container of refrigerator from deforming |
| CN202358310U (en) * | 2011-11-01 | 2012-08-01 | 哈尔滨飞机工业集团有限责任公司 | Long mold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399965A (en) * | 2014-12-11 | 2015-03-11 | 四川元泰达有色金属材料有限公司 | Novel foamed aluminum mold deformation preventing support device |
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Free format text: FORMER OWNER: SICHUAN UNIVERSITY Effective date: 20130329 Owner name: GUANGYUAN BORUI PRECISION INDUSTRY TECHNOLOGY CO., Free format text: FORMER OWNER: SICHUAN GUANGYUAN BORUI PRECISION WORK TECHNOLOGY CO., LTD. Effective date: 20130329 |
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Effective date of registration: 20130329 Address after: 628001 Wang Ying Industrial Park, Guangyuan Economic Development Zone, Sichuan, China Applicant after: Guangyuan Borui Fine Technology Co.,Ltd. Address before: 628001 Wang Ying Industrial Park, Guangyuan Economic Development Zone, Sichuan, China Applicant before: Sichuan Guangyuan Borui Fine Work Technology Co., Ltd. Applicant before: Sichuan University |
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Application publication date: 20130220 |