CN102734434A - Automobile automatic gearbox camshaft timing chain wheel and preparation method thereof - Google Patents
Automobile automatic gearbox camshaft timing chain wheel and preparation method thereof Download PDFInfo
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- CN102734434A CN102734434A CN2012101981462A CN201210198146A CN102734434A CN 102734434 A CN102734434 A CN 102734434A CN 2012101981462 A CN2012101981462 A CN 2012101981462A CN 201210198146 A CN201210198146 A CN 201210198146A CN 102734434 A CN102734434 A CN 102734434A
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- chain wheel
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- automatic gearbox
- camshaft timing
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Abstract
The invention discloses an automobile automatic gearbox camshaft timing chain wheel and a preparation method thereof. The chain wheel comprises a chain wheel body with a central through hole, wherein external teeth are respectively arranged on an inner circumferential face and an outer circumferential face; a plurality of axial through holes is arranged on the chain wheel body; a profiled sag is arranged on one side face of the chain wheel body; a convex edge is arranged on the other side face of the chain wheel body; the axial through holes penetrate through the convex edge; and the chain wheel body comprises the powder metallurgy in percentage by mass: 2.0-4.0 percent of Cu, 0.6-1.0 percent of C, and the balance of Fe and inevitable impurities. The automobile automatic gearbox camshaft timing chain wheel has extra high accuracy, the density of the whole part is more than 6.7g/cm<3>, and the density of teeth parts is more than 7.0g/cm<3>; and the automobile automatic gearbox camshaft timing chain wheel is manufactured by adopting a powder metallurgy method, so that the production difficulties of high production cost, low accuracy, high unqualified ratio and the like in the prior processing method are effectively solved, and the requirements of high accuracy and high quality of products are fundamentally met.
Description
Technical field
The present invention relates to the component of automatic gearbox of vehicles, be specifically related to a kind of automatic gearbox of vehicles camshaft timing sprocket wheel and preparation method thereof.
Background technique
Automatic gearbox of vehicles camshaft timing sprocket wheel uses in automatic gearbox of vehicles, and product design is bigger and complex-shaped, and product integral hardness and local hardness requirement are very high, and the product case depth requires also very strict.Traditional processing method can't satisfy the accurate requirement of aspects such as product aligns in hardness distribution, shape, residual magnetic flux amount.
Summary of the invention
Goal of the invention: the deficiency to existing in the existing technology, the purpose of this invention is to provide a kind of automatic gearbox of vehicles camshaft timing sprocket wheel, make its precision high, hardness is big, satisfies usage requirement.Another object of the present invention provides a kind of preparation automatic gearbox of vehicles camshaft timing sprocket wheel method, so that the product precision of preparing is high, hardness is big, and cost is low, satisfies user demand.
Technological scheme: in order to realize the foregoing invention purpose, the technological scheme that the present invention adopts is following:
A kind of automatic gearbox of vehicles camshaft timing sprocket wheel; Comprise the sprocket body that has central through bore; On the inside and outside circle side face of sprocket body, be respectively equipped with external tooth, on sprocket body, be provided with some axial through bore, on a side of sprocket body, be provided with the abnormity depression; The another side is provided with protruding stupefied, and described axial through bore is passed protruding stupefied; The powder metallurgy constituent mass percentage of described sprocket body is: 2.0-4.0%Cu, 0.6-1.0%C remains and is Fe and unavoidable impurities.
A kind of method for preparing automatic gearbox of vehicles camshaft timing sprocket wheel may further comprise the steps:
(1) the metallurgical component of mixed-powder is shaped forming pressure 750T in mould;
(2) sintering, sintering temperature 1100-1120 ℃, sintering velocity 80-100mm/mim;
(3) adopt double frequency high frequency machine that product is carried out high frequency;
(4) adopt magnetic particle flaw detector that product is carried out magnetic particle flaw detection;
(5) adopt degausser to the product degaussing;
(6) adopt the highi degree of accuracy deburring machine to the product deburring;
(7) product examine, shipment.
Beneficial effect: compared with prior art, automatic gearbox of vehicles camshaft timing sprocket wheel of the present invention, precision is high, density: whole 6.7g/cm
3More than, the 7.0g/cm of tooth portion
3More than; Hardness: more than the HRA63 of tooth portion, whole HV0.2 is more than 150; Case depth: tooth top 0.6mm position HV0.2 is more than 500; Hole location: below the 0.1mm; Parallelism: below the 0.1mm; Face rugosity: below the 0.05mm; Residual magnetism amount: below the 0.4mT.The employing powder metallurgy process is made, and efficiently solves high, the high production difficult point of low, the bad ratio of precision of processing method cost of production in the past, fundamentally satisfies product highi degree of accuracy, high-quality requirement.
Description of drawings
Fig. 1 is the plan view of automatic gearbox of vehicles camshaft timing sprocket wheel;
Fig. 2 is the rear view of automatic gearbox of vehicles camshaft timing sprocket wheel.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
As depicted in figs. 1 and 2; Automatic gearbox of vehicles camshaft timing sprocket wheel comprises the sprocket body 1 that has central through bore 5; On the inside and outside circle side face of sprocket body 1, be provided with external tooth 2, on sprocket body 1, be provided with 4 axial through bore 4, on a side of sprocket body 1, be provided with abnormity depression 3; The another side is provided with protruding stupefied 6, and axial through bore 4 passes protruding stupefied 6.The powder metallurgy component (mass percent) of this sprocket wheel is: 2.0-4.0%Cu, 0.6-1.0%C remains and is Fe and unavoidable impurities.
This automatic gearbox of vehicles camshaft timing sprocket wheel, precision is high, density: whole 6.7g/cm
3More than, the 7.0g/cm of tooth portion
3More than; Hardness: more than the HRA63 of tooth portion, whole HV0.2 is more than 150; Case depth: tooth top 0.6mm position HV0.2 is more than 500; Hole location: below the 0.1mm; Parallelism: below the 0.1mm; Face rugosity: below the 0.05mm; Residual magnetism amount: below the 0.4mT.
The preparation method of automatic gearbox of vehicles camshaft timing sprocket wheel may further comprise the steps:
(1) the metallurgical component of mixed-powder is shaped forming pressure 750T in mould; Wherein powder metallurgy component (mass percent) is: 2.0%Cu, 0.6%C remains and is Fe and unavoidable impurities.
(2) sintering, sintering temperature 1100-1120 ℃, sintering velocity 80-100mm/mim;
(3) adopt double frequency high frequency machine product to be carried out high frequency, voltage 110KW, frequency 100KHZ;
(4) adopt magnetic particle flaw detector that product is carried out magnetic particle flaw detection;
(5) adopt degausser to the product degaussing;
(6) adopt the highi degree of accuracy deburring machine to the product deburring;
(7) product examine, shipment.
The important technological parameters of acceptable product is: density: whole 6.7g/cm
3More than, the 7.0g/cm of tooth portion
3More than; Hardness: more than the HRA63 of tooth portion, whole HV0.2 is more than 150; Case depth: tooth top 0.6mm position HV0.2 is more than 500; Hole location: below the 0.1mm; Parallelism: below the 0.1mm; Face rugosity: below the 0.05mm; Residual magnetism amount: below the 0.4mT.
This preparation method adopts powder metallurgy process to make, and efficiently solves high, the high production difficult point of low, the bad ratio of precision of processing method cost of production in the past, fundamentally satisfies product highi degree of accuracy, high-quality requirement.
The preparation method of automatic gearbox of vehicles camshaft timing sprocket wheel may further comprise the steps:
(1) the metallurgical component of mixed-powder is shaped forming pressure 750T in mould; Wherein powder metallurgy component (mass percent) is: 4.0%Cu, 1.0%C remains and is Fe and unavoidable impurities.
(2) sintering, sintering temperature 1100-1120 ℃, sintering velocity 80-100mm/mim;
(3) adopt double frequency high frequency machine product to be carried out high frequency, voltage 110KW, frequency 100KHZ;
(4) adopt magnetic particle flaw detector that product is carried out magnetic particle flaw detection;
(5) adopt degausser to the product degaussing;
(6) adopt the highi degree of accuracy deburring machine to the product deburring;
(7) product examine, shipment.
The important technological parameters of acceptable product is: density: whole 6.7g/cm
3More than, the 7.0g/cm of tooth portion
3More than; Hardness: more than the HRA63 of tooth portion, whole HV0.2 is more than 150; Case depth: tooth top 0.6mm position HV0.2 is more than 500; Hole location: below the 0.1mm; Parallelism: below the 0.1mm; Face rugosity: below the 0.05mm; Residual magnetism amount: below the 0.4mT.
This preparation method adopts powder metallurgy process to make, and efficiently solves high, the high production difficult point of low, the bad ratio of precision of processing method cost of production in the past, fundamentally satisfies product highi degree of accuracy, high-quality requirement.
The preparation method of automatic gearbox of vehicles camshaft timing sprocket wheel may further comprise the steps:
(1) the metallurgical component of mixed-powder is shaped forming pressure 750T in mould; Wherein powder metallurgy component (mass percent) is: 3.0%Cu, 0.8%C remains and is Fe and unavoidable impurities.
(2) sintering, sintering temperature 1100-1120 ℃, sintering velocity 80-100mm/mim;
(3) adopt double frequency high frequency machine product to be carried out high frequency, voltage 110KW, frequency 100KHZ;
(4) adopt magnetic particle flaw detector that product is carried out magnetic particle flaw detection;
(5) adopt degausser to the product degaussing;
(6) adopt the highi degree of accuracy deburring machine to the product deburring;
(7) product examine, shipment.
The important technological parameters of acceptable product is: density: whole 6.7g/cm
3More than, the 7.0g/cm of tooth portion
3More than; Hardness: more than the HRA63 of tooth portion, whole HV0.2 is more than 150; Case depth: tooth top 0.6mm position HV0.2 is more than 500; Hole location: below the 0.1mm; Parallelism: below the 0.1mm; Face rugosity: below the 0.05mm; Residual magnetism amount: below the 0.4mT.
This preparation method adopts powder metallurgy process to make, and efficiently solves high, the high production difficult point of low, the bad ratio of precision of processing method cost of production in the past, fundamentally satisfies product highi degree of accuracy, high-quality requirement.
Embodiment 4
The preparation method of automatic gearbox of vehicles camshaft timing sprocket wheel may further comprise the steps:
(1) the metallurgical component of mixed-powder is shaped forming pressure 750T in mould; Wherein powder metallurgy component (mass percent) is: 3.5%Cu, 0.9%C remains and is Fe and unavoidable impurities.
(2) sintering, sintering temperature 1100-1120 ℃, sintering velocity 80-100mm/mim;
(3) adopt double frequency high frequency machine product to be carried out high frequency, voltage 110KW, frequency 100KHZ;
(4) adopt magnetic particle flaw detector that product is carried out magnetic particle flaw detection;
(5) adopt degausser to the product degaussing;
(6) adopt the highi degree of accuracy deburring machine to the product deburring;
(7) product examine, shipment.
The important technological parameters of acceptable product is: density: whole 6.7g/cm
3More than, the 7.0g/cm of tooth portion
3More than; Hardness: more than the HRA63 of tooth portion, whole HV0.2 is more than 150; Case depth: tooth top 0.6mm position HV0.2 is more than 500; Hole location: below the 0.1mm; Parallelism: below the 0.1mm; Face rugosity: below the 0.05mm; Residual magnetism amount: below the 0.4mT.
This preparation method adopts powder metallurgy process to make, and efficiently solves high, the high production difficult point of low, the bad ratio of precision of processing method cost of production in the past, fundamentally satisfies product highi degree of accuracy, high-quality requirement.
Claims (2)
1. automatic gearbox of vehicles camshaft timing sprocket wheel; It is characterized in that: comprise the sprocket body (1) that has central through bore (5); On the inside and outside circle side face of sprocket body (1), be respectively equipped with external tooth (2), on sprocket body (1), be provided with some axial through bore (4), on a side of sprocket body (1), be provided with abnormity depression (3); The another side is provided with protruding stupefied (6), and described axial through bore (4) is passed protruding stupefied (6);
The powder metallurgy constituent mass percentage of described sprocket body (1) is: 2.0-4.0%Cu, 0.6-1.0%C remains and is Fe and unavoidable impurities.
2. a method for preparing the described automatic gearbox of vehicles camshaft of claim 1 timing sprocket wheel is characterized in that, may further comprise the steps:
(1) the metallurgical component of mixed-powder is shaped forming pressure 750T in mould;
(2) sintering, sintering temperature 1100-1120 ℃, sintering velocity 80-100mm/mim;
(3) adopt double frequency high frequency machine that product is carried out high frequency;
(4) adopt magnetic particle flaw detector that product is carried out magnetic particle flaw detection;
(5) adopt degausser to the product degaussing;
(6) adopt the highi degree of accuracy deburring machine to the product deburring;
(7) product examine, shipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198146.2A CN102734434B (en) | 2012-06-15 | 2012-06-15 | A kind of automobile automatic gearbox camshaft timing sprocket wheel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198146.2A CN102734434B (en) | 2012-06-15 | 2012-06-15 | A kind of automobile automatic gearbox camshaft timing sprocket wheel and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734434A true CN102734434A (en) | 2012-10-17 |
| CN102734434B CN102734434B (en) | 2016-01-20 |
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| CN201210198146.2A Active CN102734434B (en) | 2012-06-15 | 2012-06-15 | A kind of automobile automatic gearbox camshaft timing sprocket wheel and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806726A (en) * | 2014-11-18 | 2015-07-29 | 长沙艾科瑞齿轮机械有限责任公司 | Gear |
| CN105240490A (en) * | 2015-10-19 | 2016-01-13 | 泰州市科诚汽车零配件有限公司 | Timing chain wheel for enhanced car engine and manufacturing method of timing chain wheel |
| CN107225247A (en) * | 2016-03-24 | 2017-10-03 | 扬州保来得科技实业有限公司 | A kind of automatic gearbox of vehicles clutch compressing disc |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005105370A (en) * | 2003-09-30 | 2005-04-21 | Mitsubishi Materials Corp | Method of producing rotary body provided with pressure resistant face for sliding on circumferential face, such as gear |
| CN200989433Y (en) * | 2006-12-21 | 2007-12-12 | 力帆实业(集团)有限公司 | Engine output sprocket |
| CN102049519A (en) * | 2010-12-31 | 2011-05-11 | 江苏双峰粉末冶金制品有限公司 | Manufacturing method of powder metallurgy chain wheel |
| CN201916455U (en) * | 2010-12-15 | 2011-08-03 | 吕元之 | Powder metallurgy chain wheel for sedan |
-
2012
- 2012-06-15 CN CN201210198146.2A patent/CN102734434B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005105370A (en) * | 2003-09-30 | 2005-04-21 | Mitsubishi Materials Corp | Method of producing rotary body provided with pressure resistant face for sliding on circumferential face, such as gear |
| CN200989433Y (en) * | 2006-12-21 | 2007-12-12 | 力帆实业(集团)有限公司 | Engine output sprocket |
| CN201916455U (en) * | 2010-12-15 | 2011-08-03 | 吕元之 | Powder metallurgy chain wheel for sedan |
| CN102049519A (en) * | 2010-12-31 | 2011-05-11 | 江苏双峰粉末冶金制品有限公司 | Manufacturing method of powder metallurgy chain wheel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806726A (en) * | 2014-11-18 | 2015-07-29 | 长沙艾科瑞齿轮机械有限责任公司 | Gear |
| CN105240490A (en) * | 2015-10-19 | 2016-01-13 | 泰州市科诚汽车零配件有限公司 | Timing chain wheel for enhanced car engine and manufacturing method of timing chain wheel |
| CN107225247A (en) * | 2016-03-24 | 2017-10-03 | 扬州保来得科技实业有限公司 | A kind of automatic gearbox of vehicles clutch compressing disc |
| CN107225247B (en) * | 2016-03-24 | 2024-04-12 | 扬州保来得科技实业有限公司 | Clutch pressure plate of automatic gearbox of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102734434B (en) | 2016-01-20 |
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