CN1899725A - Method for producing supercharger air compressor shell and back plate using magnesium alloy and its use - Google Patents
Method for producing supercharger air compressor shell and back plate using magnesium alloy and its use Download PDFInfo
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- CN1899725A CN1899725A CN 200610047286 CN200610047286A CN1899725A CN 1899725 A CN1899725 A CN 1899725A CN 200610047286 CN200610047286 CN 200610047286 CN 200610047286 A CN200610047286 A CN 200610047286A CN 1899725 A CN1899725 A CN 1899725A
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Abstract
The present invention relates to manufacture of shell and back plate of automobile supercharger, and is especially the manufacturing process of shell and back plate for automobile supercharger with magnesium alloy. The manufacturing process includes smelting, pre-heating die, die casting or casting, precision machining and other steps. The manufactured shell and back plate of automobile supercharger with magnesium alloy, rather than aluminum alloy, has raised plasticity, raised surface smoothness, reduced weight, high product quality, lowered production cost, improved air flowability and expanded forging temperature range.
Description
Technical field
The present invention relates to a kind of method of making automobile booster casing and back plate, particularly relate to a kind of method that adopts magnesium alloy to make compressor casing of pressurizer and back plate.
Background technology
Traditional compressor casing of pressurizer and back plate adopt the aluminium alloy manufacturing to form, owing to exist a large amount of hardening constituents with mutually superfluous, therefore, present the heterogeneous state that mixes in its as-cast structure in the aluminium alloy.In addition, in some aluminium alloy as-cast structure, also usually there is eutectic mixture.These materials are not only hard but also crisp usually, and are net distribution in crystal boundary.And the cooling condition during owing to casting makes these compounds form regional segregation in ingot casting, and dendritic segregation and intercrystalline segregation in addition, also have defectives such as pore, shrinkage cavity, have seriously reduced the plasticity of aluminium alloy cast ingot.Traditional compressor casing of pressurizer and back plate adopt aluminum alloy forged method preparation also to have following technical problem: 1, the fineness of product surface is low; 2, product matter is heavy; 3, yield rate is low; 4, cost height; 5, air flow property is relatively poor; 6, narrow forging temperature, 7, noise reduction damping property and casting accuracy, product specific strength, than stiffness height, speed of production and cycle, shaping speed etc. all remain further to be improved, 8, die life is short.Therefore need a kind of substitution of Al alloy of development to make the technology of compressor casing of pressurizer and back plate, to solve the technical problem.
Summary of the invention
The present invention provides a kind of method that adopts magnesium alloy to make compressor casing of pressurizer and back plate in order to solve the problems of the technologies described above, purpose is to solve existing aluminium alloy to make compressor casing of pressurizer and back plate cost height, yield rate is low, product matter heavy, product surface fineness is low problem.
Be achieved in that a kind of method that adopts magnesium alloy to make compressor casing of pressurizer and back plate in order to solve the problems of the technologies described above the present invention, its preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 80-120, and magnesium alloy is molten for liquid, standby;
B, at die surface spray one deck remover;
C, mould and die preheating: mould and die preheating is to 250-400 ℃, standby;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out machined;
F, surface of the work is carried out anti-oxidation processing get product.
Described smelting temperature is 550-800 ℃.
Described mould and die preheating to 350 ℃.
During described melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 100.
The application of magnesium alloy in making compressor casing of pressurizer and back plate.
Advantage of the present invention and effect are as follows:
The present invention adopts magnesium alloy substitution of Al alloy production compressor casing of pressurizer and back plate, adopts above-mentioned technical scheme, has improved the plasticity of booster casing and back plate, has improved the fineness of product surface; The product light weight; Improved the yield rate of product; Reduced production cost, cost can reduce about 50%; Air flow property is better; Widened forging range.The purpose of magnesium alloy is a lightest present structural metallic materials less than 2g/cm3, and its specific strength is higher than aluminium alloy; Its vibration damping, magnetic screen are much better than aluminium alloy; In view of the dynamic viscosity of magnesium alloy vibration damping, magnetic low, filling velocity under the same fluid state is much larger than aluminium alloy, magnesium alloy fusing point, specific heat capacity and latent heat of phase change are all low than aluminium alloy in addition, lack so it melts power consumption, and setting rate is fast, comparable aluminium alloy of actual die casting cycle of magnesium alloy short 50%, in addition, the affinity of magnesium alloy and iron is little, and the ability of solid solution iron is low, thereby being not easy the adhesion die surface, its mould therefor life-span is than the high 2-3 of aluminium alloy doubly.
Adopt magnesium alloy to make compressor casing of pressurizer and back plate, car mass is alleviated, fuel consumption reduces, waste discharge gas reduces, product of the present invention has noise reduction damping property and casting accuracy advantages of higher, and its overall economic efficiency is good, product specific strength, than stiffness height, speed of production is fast, the cycle is short, moulding is fast, increases die life.
The specific embodiment
Below embodiments of the present invention is described in detail, but protection scope of the present invention is not limit by embodiment.
Embodiment one
Adopt magnesium alloy to make the method for compressor casing of pressurizer and back plate, its preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 80, and the temperature of melting is 550-800 ℃, and is magnesium alloy is molten for liquid, standby;
B, at die surface spray one deck remover;
C, mould and die preheating:, standby with mould and die preheating to 250 ℃;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out fine finishining.
F, surface of the work is carried out anti-oxidation processing get product.
Embodiment two
Adopt magnesium alloy to make the method for compressor casing of pressurizer and back plate, its preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 120, and the temperature of melting is 600-700 ℃, and is magnesium alloy is molten for liquid, standby;
B, at die surface spray one deck remover;
C, mould and die preheating:, standby with mould and die preheating to 400 ℃;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out machined;
F, surface of the work is carried out anti-oxidation processing get product.
Embodiment three
Adopt magnesium alloy to make the method for compressor casing of pressurizer and back plate, its preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 100, and the temperature of melting is 620 ℃ and is liquid with magnesium alloy is molten, and is standby;
B, at die surface spray one deck remover;
C, mould and die preheating:, standby with mould and die preheating to 350 ℃;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out machined;
F, surface of the work is carried out anti-oxidation processing get product.
Embodiment four
Adopt magnesium alloy to make the method for compressor casing of pressurizer and back plate, its preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 110, and the temperature of melting is 600 ℃ and is liquid with magnesium alloy is molten, and is standby;
B, at die surface spray one deck remover; Used remover can for conventional remover as RDL-3188; RDL-3317; A kind of among the SAFETY-LUBE-4060.
C, mould and die preheating:, standby with mould and die preheating to 300 ℃;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out machined;
F, surface of the work is carried out anti-oxidation processing get product.
Embodiment five
Adopt magnesium alloy to make the method for compressor casing of pressurizer and back plate, its preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 90, and the temperature of melting is 650 ℃ and is liquid with magnesium alloy is molten, and is standby;
B, at die surface spray one deck remover;
C, mould and die preheating:, standby with mould and die preheating to 400 ℃;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out machined;
F, surface of the work is carried out anti-oxidation processing get product.
Claims (5)
1, a kind of method that adopts magnesium alloy to make compressor casing of pressurizer and back plate is characterized in that the preparation method is as follows:
A, melting: adopt sulfur hexafluoride and the mixed gas protected of nitrogen that magnesium alloy is carried out melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 80-120, and magnesium alloy is molten for liquid, standby;
B, at die surface spray one deck remover;
C, mould and die preheating: mould and die preheating is to 250-400 ℃, standby;
D, die casting or casting: with the magnesium alloy liquid die casting of melting or in the mould after being cast to preheating, die casting or be cast into blank;
E, fine finishining: the blank to moulding carries out machined;
F, surface of the work is carried out anti-oxidation processing get product.
2, employing magnesium alloy according to claim 1 is made the method for compressor casing of pressurizer and back plate, it is characterized in that described smelting temperature is 550-800 ℃.
3, employing magnesium alloy according to claim 1 is made the method for compressor casing of pressurizer and back plate, it is characterized in that described mould and die preheating to 350 ℃.
4, employing magnesium alloy according to claim 1 is made the method for compressor casing of pressurizer and back plate, and when it is characterized in that described melting, the volume ratio of sulfur hexafluoride and nitrogen is 1: 100.
5, the application of magnesium alloy in making compressor casing of pressurizer and back plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100472864A CN100460109C (en) | 2006-07-25 | 2006-07-25 | Method for producing supercharger air compressor shell and back plate using magnesium alloy and its use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100472864A CN100460109C (en) | 2006-07-25 | 2006-07-25 | Method for producing supercharger air compressor shell and back plate using magnesium alloy and its use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1899725A true CN1899725A (en) | 2007-01-24 |
| CN100460109C CN100460109C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100472864A Expired - Fee Related CN100460109C (en) | 2006-07-25 | 2006-07-25 | Method for producing supercharger air compressor shell and back plate using magnesium alloy and its use |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453207C (en) * | 2007-03-01 | 2009-01-21 | 陈浩 | Casting method for supercharging compressor case, casting device and supercharging compressor case |
| CN101323907B (en) * | 2007-06-15 | 2010-09-22 | 贵州世纪天元矿业有限公司 | Generation method of metal vacuum smelting protective gas |
| CN102773452A (en) * | 2011-05-09 | 2012-11-14 | 吴江市天龙机械有限公司 | Die-casting process method for sensitive element aluminum alloy support |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62127160A (en) * | 1985-11-26 | 1987-06-09 | Hitachi Metals Ltd | Turbine rotor for super charger of internal combustion engine |
| JPS63111243A (en) * | 1986-10-29 | 1988-05-16 | Isuzu Motors Ltd | Manufacture of turbine housing |
| JP2004143937A (en) * | 2002-10-21 | 2004-05-20 | Aisin Takaoka Ltd | Housing for supercharger and its manufacturing method |
| CN1690382A (en) * | 2004-04-26 | 2005-11-02 | 周彦学 | Petrol engine turbocharger and method for manufacturing the same |
-
2006
- 2006-07-25 CN CNB2006100472864A patent/CN100460109C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453207C (en) * | 2007-03-01 | 2009-01-21 | 陈浩 | Casting method for supercharging compressor case, casting device and supercharging compressor case |
| CN101323907B (en) * | 2007-06-15 | 2010-09-22 | 贵州世纪天元矿业有限公司 | Generation method of metal vacuum smelting protective gas |
| CN102773452A (en) * | 2011-05-09 | 2012-11-14 | 吴江市天龙机械有限公司 | Die-casting process method for sensitive element aluminum alloy support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100460109C (en) | 2009-02-11 |
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Granted publication date: 20090211 |