CN102554197A - Hot isostatic pressing treatment process for casting turbo-supercharger compressor impeller - Google Patents
Hot isostatic pressing treatment process for casting turbo-supercharger compressor impeller Download PDFInfo
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- CN102554197A CN102554197A CN2012100217033A CN201210021703A CN102554197A CN 102554197 A CN102554197 A CN 102554197A CN 2012100217033 A CN2012100217033 A CN 2012100217033A CN 201210021703 A CN201210021703 A CN 201210021703A CN 102554197 A CN102554197 A CN 102554197A
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Abstract
The invention discloses a hot isostatic pressing treatment process for casting a turbo-supercharger compressor impeller, which is applied to turbo-supercharger compressor impeller castings. The impeller is made of C355 or ZL105 materials; after the impeller is cast, hot isostatic pressing treatment is firstly performed under an as-cast condition, and then a conventional solid-solution treatment process is performed; hot isostatic pressing treatment for the castings is specified to 520-525 DEG C X (2-3h), argon is used as a medium, and isostatic pressure is higher than 100MPa; and after hot isostatic pressing for the castings, a 525+/-5 DEG C x (6-12h) solid-solution and 165+/-3 DEG C x (4-8h) ageing treatment process is performed for the castings. By means of combining the hot isostatic pressing technology with the traditional solid-solution ageing treatment process, the structure property, the material strength, plasticity and the fatigue strength of the aluminum compressor impeller castings of a turbo-supercharger are improved, reliability of the impeller applied to an occasion at a high linear speed is enhanced, and dispersion of tensile property is improved.
Description
Technical field
The invention belongs to a kind of Technology for Heating Processing, be specifically related to a kind of hip treatment technology that is used to cast turbo-charger blower impeller.
Background technology
Turbocharger is that requisite parts are discharged in modern engine raising power, fuel-economizing and improvement; Wherein cast with compressor impeller is the core key part of turbocharger; Because compressor impeller adopts the casting method gained; Because there are tissue defects such as in various degree microcosmic shrinkage porosite, pore in interior tissue, these internal flaws are difficult to detect through methods such as conventional fluorescent inspections, remain in impeller blade inside and in the product use, cause hidden danger of quality; Defectives such as microcosmic shrinkage porosite will cause the reduction significantly of impeller fatigue strength, and this is confirmed by test.
The important technology of the material processing field of hot isostatic pressing technique HIP; Aluminium alloy castings is after HIP handles; Because HIP makes internal porosity, shrinkage cavity, shrinkage porosite and the pin hole of foundry goods obtain healing; Casting material intensity and plasticity all increase, and the degree of scatter of tensile property has bigger improvement, and fatigue strength obviously improves.
High temperature insostatic pressing (HIP) as a kind of technological means with successful Application at aerospace field, do not have clear and definite process application for being applied in turbocharger casting compressor impeller aspect.The present invention provides a kind of high temperature insostatic pressing (HIP) Technology for Heating Processing that is used for turbocharger aluminium gas compressor impeller casting; High temperature insostatic pressing (HIP) and follow-up solid solution treatment process have been comprised; Through the enforcement of integrated artistic, can obtain high-quality turbocharger casting aluminium compressor impeller rough casting.
Summary of the invention
The present invention will solve the existing compressor impeller that adopts the casting method gained, because internal flaw causes the reduction significantly of impeller fatigue strength, in the product use, causes the problem of hidden danger of quality.
The present invention realizes through following technical scheme:
A kind of hip treatment technology that is used to cast turbo-charger blower impeller is applied to the turbo-charger blower impeller foundry goods, and impeller material is C355 or ZL105A; Behind the impeller casting complete, under as-cast condition, at first carry out hip treatment, then carry out conventional solid solution treatment process; Foundry goods hip treatment standard is that (2～3h), medium is an argon gas to 520～525 ℃ of X, and hydrostatic pressure is greater than 100MPa; Behind the foundry goods high temperature insostatic pressing (HIP), foundry goods carry out 525 ± 5 ℃ of x of solid solution (6～12h) and timeliness handle 165 ± 3 ℃ of x (4～8h).
The present invention compares with prior art has following beneficial effect:
1. the structure property that has realized turbocharger casting aluminium gas compressor impeller casting improves, and casting material intensity and plasticity all increase, and the degree of scatter of tensile property has bigger improvement, and fatigue strength obviously improves.
2. the casting compressor impeller can be applied under the application scenario of high linear speed, and its impeller reliability increases substantially.
The specific embodiment
Embodiment 1
The present invention provides a kind of high temperature insostatic pressing (HIP) Technology for Heating Processing that is used for turbocharger aluminium gas compressor impeller casting; High temperature insostatic pressing (HIP) and follow-up solid solution treatment process have been comprised; Through the enforcement of integrated artistic, can obtain high-quality turbocharger casting aluminium compressor impeller rough casting.Impeller material is C355; Behind the impeller casting complete, under as-cast condition, at first carry out hip treatment, then carry out conventional solid solution treatment process; Foundry goods hip treatment standard is 520～525 ℃ of X (2h), and medium is an argon gas, and hydrostatic pressure is greater than 100MPa; Behind the foundry goods high temperature insostatic pressing (HIP), foundry goods carries out 525 ± 5 ℃ of x of solid solution (6h) and timeliness is handled 165 ± 3 ℃ of x (4h).
Embodiment 2
The present invention provides a kind of high temperature insostatic pressing (HIP) Technology for Heating Processing that is used for turbocharger aluminium gas compressor impeller casting; High temperature insostatic pressing (HIP) and follow-up solid solution treatment process have been comprised; Through the enforcement of integrated artistic, can obtain high-quality turbocharger casting aluminium compressor impeller rough casting.Impeller material is ZL105A; Behind the impeller casting complete, under as-cast condition, at first carry out hip treatment, then carry out conventional solid solution treatment process; Foundry goods hip treatment standard is 520～525 ℃ of X (3h), and medium is an argon gas, and hydrostatic pressure is greater than 100MPa; Behind the foundry goods high temperature insostatic pressing (HIP), foundry goods carries out 525 ± 5 ℃ of x of solid solution (12h) and timeliness is handled 165 ± 3 ℃ of x (8h).
Claims (1)
1. hip treatment technology that is used to cast turbo-charger blower impeller, it is characterized in that: process application is in the turbo-charger blower impeller foundry goods, and impeller material is C355 or ZL105A; Behind the impeller casting complete, under as-cast condition, at first carry out hip treatment, then carry out conventional solid solution treatment process; Foundry goods hip treatment standard is that (2～3h), medium is an argon gas to 520～525 ℃ of X, and hydrostatic pressure is greater than 100MPa; Behind the foundry goods high temperature insostatic pressing (HIP), foundry goods carry out 525 ± 5 ℃ of x of solid solution (6～12h) and timeliness handle 165 ± 3 ℃ of x (4～8h).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100217033A CN102554197A (en) | 2012-02-01 | 2012-02-01 | Hot isostatic pressing treatment process for casting turbo-supercharger compressor impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100217033A CN102554197A (en) | 2012-02-01 | 2012-02-01 | Hot isostatic pressing treatment process for casting turbo-supercharger compressor impeller |
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| CN102554197A true CN102554197A (en) | 2012-07-11 |
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| CN2012100217033A Pending CN102554197A (en) | 2012-02-01 | 2012-02-01 | Hot isostatic pressing treatment process for casting turbo-supercharger compressor impeller |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018046A (en) * | 2014-06-19 | 2014-09-03 | 芜湖市泰美机械设备有限公司 | Aviation casting heat-resistant aluminum alloy and thermal treatment method thereof |
| CN105964739A (en) * | 2016-06-24 | 2016-09-28 | 无锡飞而康精铸工程有限公司 | Pattern correction method of investment casting engine blade and pattern correction mould of method |
| CN109055694A (en) * | 2018-07-20 | 2018-12-21 | 沈阳鼓风机集团核电泵业有限公司 | The heat treatment process and application of one seed nucleus main pump casting impeller |
| CN111500952A (en) * | 2020-04-29 | 2020-08-07 | 钢研昊普科技有限公司 | Hot isostatic pressing treatment process method for Z L101A aluminum alloy formed by casting |
| CN113584412A (en) * | 2021-06-01 | 2021-11-02 | 青岛科麟航空科技有限公司 | Heat treatment method of ZL105A casting and ZL105A casting |
| CN113621902A (en) * | 2021-07-01 | 2021-11-09 | 山东双港活塞股份有限公司 | Strengthening treatment method for aluminum-silicon alloy piston |
-
2012
- 2012-02-01 CN CN2012100217033A patent/CN102554197A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018046A (en) * | 2014-06-19 | 2014-09-03 | 芜湖市泰美机械设备有限公司 | Aviation casting heat-resistant aluminum alloy and thermal treatment method thereof |
| CN104018046B (en) * | 2014-06-19 | 2016-05-25 | 芜湖市泰美机械设备有限公司 | A kind of Aeronautical Cast is made heat-resisting aluminium alloy and heat treatment method thereof |
| CN105964739A (en) * | 2016-06-24 | 2016-09-28 | 无锡飞而康精铸工程有限公司 | Pattern correction method of investment casting engine blade and pattern correction mould of method |
| CN109055694A (en) * | 2018-07-20 | 2018-12-21 | 沈阳鼓风机集团核电泵业有限公司 | The heat treatment process and application of one seed nucleus main pump casting impeller |
| CN111500952A (en) * | 2020-04-29 | 2020-08-07 | 钢研昊普科技有限公司 | Hot isostatic pressing treatment process method for Z L101A aluminum alloy formed by casting |
| CN111500952B (en) * | 2020-04-29 | 2021-04-30 | 钢研昊普科技有限公司 | Hot isostatic pressing treatment process method for cast ZL101A aluminum alloy |
| CN113584412A (en) * | 2021-06-01 | 2021-11-02 | 青岛科麟航空科技有限公司 | Heat treatment method of ZL105A casting and ZL105A casting |
| CN113621902A (en) * | 2021-07-01 | 2021-11-09 | 山东双港活塞股份有限公司 | Strengthening treatment method for aluminum-silicon alloy piston |
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Application publication date: 20120711 |