CN102672442A - Production process of output shaft of gear - Google Patents
Production process of output shaft of gear Download PDFInfo
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- CN102672442A CN102672442A CN2012101861117A CN201210186111A CN102672442A CN 102672442 A CN102672442 A CN 102672442A CN 2012101861117 A CN2012101861117 A CN 2012101861117A CN 201210186111 A CN201210186111 A CN 201210186111A CN 102672442 A CN102672442 A CN 102672442A
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Abstract
The invention discloses a production process of an output shaft of a gear. Basic iron powder and other formula powder materials are subjected to steps of agitating, molding, sintering, recessing, carrying out heat treatment, vibrating and milling, and immersing by oil and packaging to prepare the output shaft of the gear. The production process has the advantages that a part is deviated in the molding step to be molded for one time through a mould; a process step is simplified, the surface quality of a product is improved, the adverse effects on a previous process are improved, production raw materials are reduced, the production efficiency is better improved and the production cost is reduced; and the production process is stable, the stability is strong, the quality of a produced output shaft product is excellent and the index performance is high.
Description
Technical field
The present invention relates to a kind of gear force-output shaft production technology.
Background technology
Being mostly of the technology of the gear of powder metallurgy industry manufacturing now force-output shaft: stirring-shaping-sintering-packing.In this kind technology, a lot of companies adopt modes such as simplifying prescription or minimizing technology in order to reduce cost; Provide cost savings though simplify prescription,, can only use to the product of some least significant ends can the properties of product quality is lacked guarantee; And in this kind technology during machined to processing with turning oil, cause part surface coverage one deck putty after heat treatment easily, influence outward appearance; If will remove and to brush, increase manual work easily and cause cost to rise.
Summary of the invention
Goal of the invention: to the problems referred to above, the purpose of this invention is to provide a kind of simple, be easy to realize that the powder metallurgy that production efficiency is high is made the technology of gear force-output shaft, has improved product quality.
Technical scheme: a kind of gear force-output shaft production technology may further comprise the steps:
(1) composition of raw materials: in the basic material powder, increase component C and lubricant, the addition of each component is a radix in the quality of basic material powder, and C is 0.3%, lubricant is 0.7%; The component of said basic material powder and quality percentage composition are: by 100%, Ni is 1.6～1.8%, Cu is 1.4～1.6%, Mo is 0.47～0.53%, C is 0～0.005%, impurity is 0～0.1%, surplus is Fe;
(2) composition of raw materials in the step (1) is stirred by proportioning, evenly mix;
(3) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through shaping dies and give birth to embryo;
(4) sintering: product is given birth to embryo put on carbon plate, sintering 3.5～4h in sintering furnace, 670 ℃～1140 ℃ of sintering furnace temperature are given birth to embryo with product and are sintered semi-finished product into;
(5) recessing: with the semi-finished product processing C catching groove footpath and the O type annular groove footpath that sinter;
(6) heat treatment: the semi-finished product that car is good place on the heat treatment guipure, through heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heat treatment temperatures; Heat treatment time 1～3 hour gets into oil groove then and quenches, and the oil temperature is below 60 ℃; Product hardness is reached in HRA30～45 degree scopes, sent into the tempering furnace tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of temperatures; Product compression strength is reached more than the 400Kgf, then product is seen off;
(7) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrates 20～40 minutes and gets product;
(8) oil immersion packing: finished product is cleaned oil immersion, packing.
Step is shaped to the off normal size through mould in (3) simultaneously; Reduce the follow-up off normal step of milling; Avoid part when milling off normal, need add turning oil and cause that product surface covers one deck putty after the heat treatment; Dirty can't the removal of carrying after causing product through vibro-grinding, strict to the auto parts appearance requirement, also must the increase personnel brush.
Best, the sintering of step (4) is divided into six sections, and the sintering furnace temperature of each section is: first section 680 ℃ ± 10 ℃; Second section 780 ℃ ± 10 ℃, the 3rd section 950 ℃ ± 10 ℃, the 4th section 1100 ℃ ± 10 ℃; The 5th section 1130 ℃ ± 10 ℃, the 6th section 1130 ℃ ± 10 ℃.
Said sintering furnace is the net belt type sintering furnace.
Said heat-treatment furnace is the net belt type heat-treatment furnace.
Said product is given birth to the embryo once die stamping forming.
Beneficial effect: compared with prior art; Advantage of the present invention is that the part off normal is obtained through the disposable shaping of mould in forming step; Simplify processing step, improve product surface quality, improved the adverse effect of former technology; Reduced raw materials for production, better improved production efficiency, reduced production costs; Stable production process, good reliability, the force-output shaft product quality of production is excellent, and performance indications are high.
The specific embodiment
Below in conjunction with specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1: a kind of gear force-output shaft production technology may further comprise the steps:
(1) composition of raw materials: in the basic material powder, increase component C and lubricant, the addition of each component is a radix in the quality of basic material powder, and C is 0.3%, lubricant is 0.7%; The component of said basic material powder and quality percentage composition are: by 100%, Ni is 1.7%, Cu is 1.5%, Mo is 0.50%, C is 0.002%, impurity is 0.05%, surplus is Fe;
(2) stir: the composition of raw materials in the step (1) is stirred, evenly mix.
(3) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through the shaping dies once-forming and give birth to embryo.This shaping dies structure is for eating following two punch, to off normal size while direct forming, because certain towards the off normal portion size down; Be subsidy shaping powder filling amount; Dashes so increase next, towards filling and add roof pressure, its off normal partial density is increased through next; Thereby increase the product bond strength, the back that is shaped dashes through next part is ejected the auxiliary demoulding.
(4) sintering: product is given birth to embryo put on carbon plate, sintering in the net belt type sintering furnace is regulated the gentle atmosphere flow of sintering network speed, product is given birth to embryo sinter semi-finished product into.The sintering furnace temperature: first section 680 ℃ ± 10 ℃, second section 780 ℃ ± 10 ℃, the 3rd section 950 ℃ ± 10 ℃, the 4th section 1100 ℃ ± 10 ℃, the 5th section 1130 ℃ ± 10 ℃, the 6th section 1130 ℃ ± 10 ℃; It is 3.5～4h from advancing stove to coming out of the stove that product is given birth to embryo.
(5) recessing: with the semi-finished product processing C catching groove footpath and the O type annular groove footpath that sinter.
(6) heat treatment: the semi-finished product that car is good place on the heat treatment guipure, through heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heat treatment temperatures; Heat treatment time 2 hours gets into oil groove then and quenches, 45 ℃ of oil temperature; Product hardness reaches the HRA42 degree, sends into the tempering furnace tempering at last 1.5 hours, 210 ℃ ± 10 ℃ of temperatures; Product compression strength reaches 450Kgf, then product is seen off.
(7) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrate 30 minutes removal surface blots and burr and gets product.
(8) oil immersion packing: finished product is cleaned oil immersion, packing.
Embodiment 2:
A kind of gear force-output shaft production technology may further comprise the steps:
(1) composition of raw materials: in the basic material powder, increase component C and lubricant, the addition of each component is a radix in the quality of basic material powder, and C is 0.3%, lubricant is 0.7%; The component of said basic material powder and quality percentage composition are: by 100%, Ni is 1.6%, Cu is 1.4%, Mo is 0.47%, surplus is Fe;
(2) stir: the composition of raw materials in the step (1) is stirred, evenly mix.
(3) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through the shaping dies once-forming and give birth to embryo.This shaping dies structure is for eating following two punch, to off normal size while direct forming, because certain towards the off normal portion size down; Be subsidy shaping powder filling amount; Dashes so increase next, towards filling and add roof pressure, its off normal partial density is increased through next; Thereby increase the product bond strength, the back that is shaped dashes through next part is ejected the auxiliary demoulding.
(4) sintering: product is given birth to embryo put on carbon plate, sintering in the net belt type sintering furnace is regulated the gentle atmosphere flow of sintering network speed, product is given birth to embryo sinter semi-finished product into.The sintering furnace temperature: first section 680 ℃ ± 10 ℃, second section 780 ℃ ± 10 ℃, the 3rd section 950 ℃ ± 10 ℃, the 4th section 1100 ℃ ± 10 ℃, the 5th section 1130 ℃ ± 10 ℃, the 6th section 1130 ℃ ± 10 ℃; It is 3.5～4h from advancing stove to coming out of the stove that product is given birth to embryo.
(5) recessing: with the semi-finished product processing C catching groove footpath and the O type annular groove footpath that sinter.
(6) heat treatment: the semi-finished product that car is good place on the heat treatment guipure, through heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heat treatment temperatures; Heat treatment time 1 hour gets into oil groove then and quenches, and the oil temperature is below 60 ℃; Product hardness reaches HRA40, sends into the tempering furnace tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of temperatures; Product compression strength reaches 480Kgf, then product is seen off.
(7) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrate 20 minutes removal surface blots and burr and gets product.
(8) oil immersion packing: finished product is cleaned oil immersion, packing.
Embodiment 3:
A kind of gear force-output shaft production technology may further comprise the steps:
(1) composition of raw materials: in the basic material powder, increase component C and lubricant, the addition of each component is a radix in the quality of basic material powder, and C is 0.3%, lubricant is 0.7%; The component of said basic material powder and quality percentage composition are: by 100%, Ni is 1.8%, Cu is 1.6%, Mo is 0.53%, C is 0.005%, impurity is 0.1%, surplus is Fe;
(2) stir: the composition of raw materials in the step (1) is stirred, evenly mix.
(3) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through the shaping dies once-forming and give birth to embryo.This shaping dies structure is for eating following two punch, to off normal size while direct forming, because certain towards the off normal portion size down; Be subsidy shaping powder filling amount; Dashes so increase next, towards filling and add roof pressure, its off normal partial density is increased through next; Thereby increase the product bond strength, the back that is shaped dashes through next part is ejected the auxiliary demoulding.
(4) sintering: product is given birth to embryo put on carbon plate, sintering in the net belt type sintering furnace is regulated the gentle atmosphere flow of sintering network speed, product is given birth to embryo sinter semi-finished product into.The sintering furnace temperature: first section 680 ℃ ± 10 ℃, second section 780 ℃ ± 10 ℃, the 3rd section 950 ℃ ± 10 ℃, the 4th section 1100 ℃ ± 10 ℃, the 5th section 1130 ℃ ± 10 ℃, the 6th section 1130 ℃ ± 10 ℃; It is 3.5～4h from advancing stove to coming out of the stove that product is given birth to embryo.
(5) recessing: with the semi-finished product processing C catching groove footpath and the O type annular groove footpath that sinter.
(6) heat treatment: the semi-finished product that car is good place on the heat treatment guipure, through heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heat treatment temperatures; Heat treatment time 3 hours gets into oil groove then and quenches, and the oil temperature is below 60 ℃; Product hardness reaches the HRA38 degree, sends into the tempering furnace tempering at last 2 hours, 210 ℃ ± 10 ℃ of temperatures; Product compression strength reaches 520Kgf, then product is seen off.
(7) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrate 40 minutes removal surface blots and burr and gets product.
(8) oil immersion packing: finished product is cleaned oil immersion, packing.
Claims (6)
1. gear force-output shaft production technology is characterized in that may further comprise the steps:
(1) composition of raw materials: in the basic material powder, increase component C and lubricant, the addition of each component is a radix in the quality of basic material powder, and C is 0.3%, lubricant is 0.7%; The component of said basic material powder and quality percentage composition are: by 100%, Ni is 1.6～1.8%, Cu is 1.4～1.6%, Mo is 0.47～0.53%, C is 0～0.005%, impurity is 0～0.1%, surplus is Fe;
(2) composition of raw materials in the step (1) is stirred by proportioning, evenly mix;
(3) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through shaping dies and give birth to embryo;
(4) sintering: product is given birth to embryo put on carbon plate, sintering 3.5～4h in sintering furnace, 670 ℃～1140 ℃ of sintering furnace temperature are given birth to embryo with product and are sintered semi-finished product into;
(5) recessing: with the semi-finished product processing C catching groove footpath and the O type annular groove footpath that sinter;
(6) heat treatment: the semi-finished product that car is good place on the heat treatment guipure, through heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heat treatment temperatures; Heat treatment time 1～3 hour gets into oil groove then and quenches, and the oil temperature is below 60 ℃; Product hardness is reached in HRA30～45 degree scopes, sent into the tempering furnace tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of temperatures; Product compression strength is reached more than the 400Kgf, then product is seen off;
(7) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrates 20～40 minutes and gets product;
(8) oil immersion packing: finished product is cleaned oil immersion, packing.
2. a kind of gear force-output shaft production technology according to claim 1, it is characterized in that: step is shaped to the off normal size through mould in (3) simultaneously.
3. a kind of gear force-output shaft production technology according to claim 1; It is characterized in that: the sintering of step (4) is divided into six sections, and the sintering furnace temperature of each section is: first section 680 ℃ ± 10 ℃, and second section 780 ℃ ± 10 ℃; The 3rd section 950 ℃ ± 10 ℃; The 4th section 1100 ℃ ± 10 ℃, the 5th section 1130 ℃ ± 10 ℃, the 6th section 1130 ℃ ± 10 ℃.
4. a kind of gear force-output shaft production technology according to claim 1, it is characterized in that: said sintering furnace is the net belt type sintering furnace.
5. a kind of gear force-output shaft production technology according to claim 1, it is characterized in that: said heat-treatment furnace is the net belt type heat-treatment furnace.
6. a kind of gear force-output shaft production technology according to claim 1 is characterized in that: said product is given birth to the embryo once die stamping forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101861117A CN102672442A (en) | 2012-06-07 | 2012-06-07 | Production process of output shaft of gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101861117A CN102672442A (en) | 2012-06-07 | 2012-06-07 | Production process of output shaft of gear |
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| CN102672442A true CN102672442A (en) | 2012-09-19 |
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| CN2012101861117A Pending CN102672442A (en) | 2012-06-07 | 2012-06-07 | Production process of output shaft of gear |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180698A (en) * | 2016-07-18 | 2016-12-07 | 安徽奥泰粉末冶金有限公司 | A kind of powder metallurgical production technique method |
| CN107366735A (en) * | 2017-08-04 | 2017-11-21 | 扬州海昌新材股份有限公司 | A kind of helical gear and preparation method thereof |
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| US6168754B1 (en) * | 1999-02-17 | 2001-01-02 | Federal-Mogul World Wide, Inc. | Method and apparatus for densifying powder metal preforms |
| CN101214550A (en) * | 2008-01-04 | 2008-07-09 | 陆海雷 | Method for manufacturing small spiral bevel gear |
| CN101502879A (en) * | 2009-01-16 | 2009-08-12 | 马鞍山市华东粉末冶金厂 | Method for producing small modulus duplicate gear from powder metallurgy |
| CN101524757A (en) * | 2009-04-24 | 2009-09-09 | 马鞍山市华东粉末冶金厂 | Method for producing fly hammer seat by powder metallurgy |
| CN101634238A (en) * | 2009-08-31 | 2010-01-27 | 桐城市汽车部件有限公司 | Temperature-pressure-die wall lubrication valve seat containing rare earth powder metallurgy and manufacturing method thereof |
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2012
- 2012-06-07 CN CN2012101861117A patent/CN102672442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6168754B1 (en) * | 1999-02-17 | 2001-01-02 | Federal-Mogul World Wide, Inc. | Method and apparatus for densifying powder metal preforms |
| CN101214550A (en) * | 2008-01-04 | 2008-07-09 | 陆海雷 | Method for manufacturing small spiral bevel gear |
| CN101502879A (en) * | 2009-01-16 | 2009-08-12 | 马鞍山市华东粉末冶金厂 | Method for producing small modulus duplicate gear from powder metallurgy |
| CN101524757A (en) * | 2009-04-24 | 2009-09-09 | 马鞍山市华东粉末冶金厂 | Method for producing fly hammer seat by powder metallurgy |
| CN101634238A (en) * | 2009-08-31 | 2010-01-27 | 桐城市汽车部件有限公司 | Temperature-pressure-die wall lubrication valve seat containing rare earth powder metallurgy and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180698A (en) * | 2016-07-18 | 2016-12-07 | 安徽奥泰粉末冶金有限公司 | A kind of powder metallurgical production technique method |
| CN107366735A (en) * | 2017-08-04 | 2017-11-21 | 扬州海昌新材股份有限公司 | A kind of helical gear and preparation method thereof |
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Application publication date: 20120919 |