CN102092417A - Integrated valve bush and powder metallurgy process method thereof - Google Patents
Integrated valve bush and powder metallurgy process method thereof Download PDFInfo
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- CN102092417A CN102092417A CN2010105731912A CN201010573191A CN102092417A CN 102092417 A CN102092417 A CN 102092417A CN 2010105731912 A CN2010105731912 A CN 2010105731912A CN 201010573191 A CN201010573191 A CN 201010573191A CN 102092417 A CN102092417 A CN 102092417A
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- integrated valve
- integral type
- type valve
- powder metallurgy
- valve pocket
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Abstract
The invention provides an integrated valve bush and a powder metallurgy process method thereof. The technical scheme is that: the integrated valve bush comprises an integrated valve body, wherein four enclosed oil grooves are formed along the circumference of the inner pore wall of the integrated valve body uniformly; and one end of the valve body is provided with two axial oil inlet holes which are communicated with two enclosed oil grooves of the four enclosed oil grooves respectively. The powder metallurgy process method of the integrated valve bush comprises the following steps of: performing one-time compression molding; infiltrating copper and sintering at the temperature of between 1,150 and 1,160 DEG C for 1 to 1.5 hours; and performing heat treatment and subzero treatment to finish powder metallurgy processes of parts. In the integrated valve bush, the axial oil inlet holes are communicated with the enclosed oil grooves, so that a product structure is simplified and one-time powder metallurgy molding can be realized. In the powder metallurgy process of the integrated valve bush, one-time molding is realized, so that the production cost of a product is reduced; and austenite inside an integrated valve bush texture is completely converted into martensite through the subzero treatment, so that the mechanical property of the integrated valve bush is ensured.
Description
Technical field
The present invention relates to the power steer valve pocket, especially integral type valve pocket and powder metallurgical technique method thereof.
Background technology
Available dynamic steering box valve pocket is the branch body structure, as shown in Figure 1, is made up of valve body 1, chock 2, is sintered to one by oozing copper, and valve body inner bore is provided with axial arc groove 3 and is communicated with oil groove 4 on the valve body inner bore wall.The valve pocket of this minute body structure needs could go out blank by sintering through three process, waste resource, production cost of products height.
Summary of the invention
In order to simplify the structure of power steer valve pocket, reduce the productive costs of power steer valve pocket, the present invention proposes integral type valve pocket and powder metallurgical technique method thereof.
Technical scheme of the present invention is:
The integral type valve pocket comprises the integral type valve body, it is characterized in that: being uniformly distributed along the circumference on the integral type valve body inner bore wall is provided with four sealing oil grooves, is provided with two axial fuel inlet holes at an end of valve body and communicates with two sealing oil grooves wherein respectively.
The powder metallurgical technique method of integral type valve pocket, step is as follows:
A, mixing material: the set of dispense of the powdered metallurgical material that the integral type valve pocket needs is than preparing material.
B, press forming: the uniform powdered metallurgical material of compounding is delivered to press forming of usefulness mould on the compression machine, just be configured as the integral type valve pocket.
C, sintering: the part of press forming is sent into powder metallurgy sintering furnace ooze the copper sintering, sinter point is 1150-1160 ℃, and sintering time is 1-1.5 hour;
D, heat treatment process: part sent into be heated to 850-870 ℃ in the heat treatment furnace, and insulation 2-3 hour; Then, cool off with quenching oil;
E, subzero treatment: the back part container of packing into that will quench, add liquid nitrogen and carry out subzero treatment, the time is 10-12 hour.
Beneficial effect: integral type valve pocket of the present invention communicates with the sealing oil groove by the axial fuel inlet hole is set, and has simplified product structure, can realize that a partial metallurgy is shaped.The integral type valve pocket is in powder metallurgical technique, and once-forming has reduced production cost of products, and by subzero treatment, the austenite of integral type valve pocket organization internal is converted to martensite fully, thereby guarantees the mechanical characteristics of integral type valve pocket.
Description of drawings
Fig. 1 is the structural representation of split type valve pocket.
Fig. 2 is the structural representation of integral type valve pocket.
The specific embodiment
Integral type valve pocket as shown in Figure 2 comprises integral type valve body 5, is uniformly distributed along the circumference on the integral type valve body inner bore wall to be provided with four sealing oil grooves 7, is provided with two axial fuel inlet holes 6 at an end of valve body and communicates with wherein symmetrical two sealing oil grooves 7 respectively.
Axial fuel inlet hole 6 also can change the position, communicates with mutual asymmetric two sealing oil grooves 7.
In conjunction with integral type valve pocket shown in Figure 1, it is as follows to describe the powder metallurgical technique method:
A, mixing material: the set of dispense of the powdered metallurgical material that the integral type valve pocket needs is than preparing material.
B, press forming: the uniform powdered metallurgical material of compounding is delivered to press forming of usefulness mould on the compression machine, just be configured as the integral type valve pocket.
C, sintering: the part of press forming is sent into powder metallurgy sintering furnace ooze the copper sintering, sinter point is 1150 ℃, and sintering time is 1 hour;
D, heat treatment process: part sent into be heated to 850 ℃ in the heat treatment furnace, and be incubated 2 hours; Then, cool off with quenching oil;
E, subzero treatment: the back part container of packing into that will quench, add liquid nitrogen and carry out subzero treatment, the time is 12 hours.
Claims (2)
1. the integral type valve pocket comprises the integral type valve body, it is characterized in that: being uniformly distributed along the circumference on the integral type valve body inner bore wall is provided with four sealing oil grooves, is provided with two axial fuel inlet holes at an end of valve body and communicates with two sealing oil grooves wherein respectively.
2. the powder metallurgical technique method of integral type valve pocket, step is as follows:
A, mixing material: the set of dispense of the powdered metallurgical material that the integral type valve pocket needs is than preparing material.
B, press forming: the uniform powdered metallurgical material of compounding is delivered to press forming of usefulness mould on the compression machine, just be configured as the integral type valve pocket.
C, sintering: the part of press forming is sent into powder metallurgy sintering furnace ooze the copper sintering, sinter point is 1150-1160 ℃, and sintering time is 1-1.5 hour;
D, heat treatment process: part sent into be heated to 850-870 ℃ in the heat treatment furnace, and insulation 2-3 hour; Then, cool off with quenching oil;
E, subzero treatment: the back part container of packing into that will quench, add liquid nitrogen and carry out subzero treatment, the time is 10-12 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105731912A CN102092417A (en) | 2010-12-06 | 2010-12-06 | Integrated valve bush and powder metallurgy process method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105731912A CN102092417A (en) | 2010-12-06 | 2010-12-06 | Integrated valve bush and powder metallurgy process method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102092417A true CN102092417A (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105731912A Pending CN102092417A (en) | 2010-12-06 | 2010-12-06 | Integrated valve bush and powder metallurgy process method thereof |
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| CN (1) | CN102092417A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773485A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing check valve core by powder metallurgy |
| CN102773484A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing ball-shaped check valve body by powder metallurgy |
| CN102773487A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Powder metallurgy preparation method of check valve clack |
| CN102773482A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing butterfly valve rod by powder metallurgy |
| CN102941346A (en) * | 2012-10-25 | 2013-02-27 | 安徽蓝博旺机械集团合诚机械有限公司 | Preparation method of powder metallurgy forming of multi-way valve body |
| CN102965563A (en) * | 2012-11-13 | 2013-03-13 | 安徽春辉仪表线缆集团有限公司 | Casting method of valve body of ball check valve |
| CN102994892A (en) * | 2012-09-29 | 2013-03-27 | 铜陵国方水暖科技有限责任公司 | Preparation method of swing check valve plate |
| CN103008642A (en) * | 2012-11-25 | 2013-04-03 | 安徽普源分离机械制造有限公司 | Valve rod powder metallurgy manufacturing method for check valve |
| CN103600063A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy check valve core and manufacturing method thereof |
| CN107175333A (en) * | 2017-04-10 | 2017-09-19 | 安徽白兔湖粉末冶金有限公司 | High-performance powder smelting inlet valve seat ring and preparation method thereof |
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| US4862571A (en) * | 1987-08-26 | 1989-09-05 | Trw Inc. | Method of making a valve sleeve |
| CN200995489Y (en) * | 2006-12-31 | 2007-12-26 | 东风汽车有限公司 | One-step forming die for powder metallurgy part with certain inner vertical groove |
| CN101347889A (en) * | 2008-06-26 | 2009-01-21 | 上海采埃孚转向机有限公司 | Method for processing sleeve of vehicle steering valve |
| US20090308242A1 (en) * | 2008-06-17 | 2009-12-17 | Mando Corporation | Pinion valve body and pinion valve assembly for vehicle equipped with the same |
| CN101746410A (en) * | 2010-01-27 | 2010-06-23 | 上海采埃孚转向机有限公司 | Valve pocket of hydraulic steering gear |
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2010
- 2010-12-06 CN CN2010105731912A patent/CN102092417A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4862571A (en) * | 1987-08-26 | 1989-09-05 | Trw Inc. | Method of making a valve sleeve |
| CN200995489Y (en) * | 2006-12-31 | 2007-12-26 | 东风汽车有限公司 | One-step forming die for powder metallurgy part with certain inner vertical groove |
| US20090308242A1 (en) * | 2008-06-17 | 2009-12-17 | Mando Corporation | Pinion valve body and pinion valve assembly for vehicle equipped with the same |
| CN101347889A (en) * | 2008-06-26 | 2009-01-21 | 上海采埃孚转向机有限公司 | Method for processing sleeve of vehicle steering valve |
| CN101746410A (en) * | 2010-01-27 | 2010-06-23 | 上海采埃孚转向机有限公司 | Valve pocket of hydraulic steering gear |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773485B (en) * | 2012-06-30 | 2014-02-19 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing check valve core by powder metallurgy |
| CN102773484A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing ball-shaped check valve body by powder metallurgy |
| CN102773487A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Powder metallurgy preparation method of check valve clack |
| CN102773482A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing butterfly valve rod by powder metallurgy |
| CN102773487B (en) * | 2012-06-30 | 2014-06-11 | 安徽省繁昌县皖南阀门铸造有限公司 | Powder metallurgy preparation method of check valve clack |
| CN102773482B (en) * | 2012-06-30 | 2014-05-21 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing butterfly valve rod by powder metallurgy |
| CN102773485A (en) * | 2012-06-30 | 2012-11-14 | 安徽省繁昌县皖南阀门铸造有限公司 | Method for manufacturing check valve core by powder metallurgy |
| CN102994892A (en) * | 2012-09-29 | 2013-03-27 | 铜陵国方水暖科技有限责任公司 | Preparation method of swing check valve plate |
| CN102994892B (en) * | 2012-09-29 | 2016-04-06 | 铜陵创慧科技咨询服务有限公司 | A kind of swing check valve valve plate preparation method |
| CN102941346A (en) * | 2012-10-25 | 2013-02-27 | 安徽蓝博旺机械集团合诚机械有限公司 | Preparation method of powder metallurgy forming of multi-way valve body |
| CN102965563A (en) * | 2012-11-13 | 2013-03-13 | 安徽春辉仪表线缆集团有限公司 | Casting method of valve body of ball check valve |
| CN103008642A (en) * | 2012-11-25 | 2013-04-03 | 安徽普源分离机械制造有限公司 | Valve rod powder metallurgy manufacturing method for check valve |
| CN103600063A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy check valve core and manufacturing method thereof |
| CN107175333A (en) * | 2017-04-10 | 2017-09-19 | 安徽白兔湖粉末冶金有限公司 | High-performance powder smelting inlet valve seat ring and preparation method thereof |
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Application publication date: 20110615 |