CN109097723A - A kind of pack carburizing method of gear - Google Patents
A kind of pack carburizing method of gear Download PDFInfo
- Publication number
- CN109097723A CN109097723A CN201810781896.XA CN201810781896A CN109097723A CN 109097723 A CN109097723 A CN 109097723A CN 201810781896 A CN201810781896 A CN 201810781896A CN 109097723 A CN109097723 A CN 109097723A
- Authority
- CN
- China
- Prior art keywords
- carburizer
- carburizing
- gear
- cementing pot
- cementing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/64—Carburising
- C23C8/66—Carburising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a kind of pack carburizing methods of gear, are made of the following steps: 1) configure carburizer: carburizer by mass percentage, is made of 90 ~ 95% charcoals and 5 ~ 10% sodium carbonate, when in use, completely new carburizer is mixed with the carburizer of recycling；2) carburizing pre-treatment: it will be placed in 450 ~ 550 DEG C of furnaces degreasing of gasifying to the workpiece of carburizing and cementing pot, the position of carburizing is not required to for gear, using impermeable coating coating surface；3) shove charge: ready gear is placed in cementing pot, and carburizer is filled up at cementing pot gap, is sent into carburizer；4) it comes out and cools down: being taken out after cementing pot is cooled to 300 DEG C indoors.The present invention preheats workpiece before carburizing in advance, can remove greasy dirt, the iron filings of workpiece surface, and can prevent carbon black, completely new carburizer urges infiltration effect excessively violent in order to prevent simultaneously, lead to workpiece surface excessive concentration, using new and old mixed, after carburizing can be improved uniformity.
Description
Technical field
The present invention relates to a kind of pack carburizing methods of gear, are applied to gear heat treatment technical field.
Background technique
Carburizing is the process for instigating carbon atom to penetrate into steel surface layer, and the workpiece of mild steel is made to have the surface of high-carbon steel
Layer makes the superficial layer of workpiece have high rigidity and wearability using quenching and lonneal, and the central part of workpiece is still
Remain the toughness and plasticity of mild steel.Gear is components crucial in mechanical equipment, be widely used in automobile, aircraft, tank,
The industrial circles such as steamer, the quality of China's gear also has a certain distance compared with the similar product of other developed countries, main
Show average life, the energy consumption of unit product aspect of gear, gear after processing is completed, is needed through at over carburizing
Reason, but Carburization Treatment method currently on the market, there is also certain limitations, and in carburizing, gear surface is easy to appear carbon black,
And carburizing speed and uniformity are poor.
Summary of the invention
In view of the above technical problems, the invention discloses a kind of pack carburizing method of gear, it can be improved carburizing speed
And surface uniformity, carbon black is prevented, it is apparent to influence gear.
The invention discloses a kind of pack carburizing methods of gear, are made of the following steps:
1) configure carburizer: carburizer by mass percentage, is made of, it is desirable that charcoal 90 ~ 95% charcoals and 5 ~ 10% sodium carbonate
Uniformly, the charcoal of 3 ~ 6mm size particles accounts for the 80% of charcoal total amount to grain, and the charcoal particle of 1 ~ 3mm accounts for 20%, when in use, will be complete
New carburizer is mixed with the carburizer of recycling, and the ratio of new carburizer and old carburizer is 1:2 ~ 4；
2) carburizing pre-treatment: it will be placed in 450 ~ 550 DEG C of furnaces degreasing of gasifying to the workpiece of carburizing and cementing pot, removes surface oil
Dirty, iron filings and other harmful sundries, are not required to gear at the position of carburizing, using impermeable coating coating surface；
3) shove charge: being raised to 820 ~ 850 DEG C of 0.5 ~ 1h of temperature for carburizer first, and ready gear is placed in cementing pot
It is interior, carburizer is filled up at cementing pot gap, is sent into carburizer, is then slowly heated and is warming up to 900 ~ 930 DEG C, according to carburizing
The depth of layer selects suitable soaking time, depending on 0.1 ~ 0.15mm/h；
4) it comes out and cools down: after coming out of the stove, being taken out after cementing pot is cooled to 300 DEG C indoors.
The beneficial effects of the present invention are: preheating in advance before carburizing to workpiece, it can remove greasy dirt, the iron filings of workpiece surface,
And carbon black can be prevented, while carburizer completely new in order to prevent urges infiltration effect excessively violent, leads to workpiece surface concentration mistake
Height, using new and old mixed, after carburizing can be improved uniformity.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
The invention discloses a kind of pack carburizing methods of gear, are made of the following steps:
1) configure carburizer: carburizer by mass percentage, is made of, it is desirable that charcoal 90 ~ 95% charcoals and 5 ~ 10% sodium carbonate
Uniformly, the charcoal of 3 ~ 6mm size particles accounts for the 80% of charcoal total amount to grain, and the charcoal particle of 1 ~ 3mm accounts for 20%, when in use, will be complete
New carburizer is mixed with the carburizer of recycling, and the ratio of new carburizer and old carburizer is 1:2 ~ 4；
2) carburizing pre-treatment: it will be placed in 450 ~ 550 DEG C of furnaces degreasing of gasifying to the workpiece of carburizing and cementing pot, removes surface oil
Dirty, iron filings and other harmful sundries, are not required to gear at the position of carburizing, using impermeable coating coating surface；
3) shove charge: being raised to 820 ~ 850 DEG C of 0.5 ~ 1h of temperature for carburizer first, and ready gear is placed in cementing pot
It is interior, carburizer is filled up at cementing pot gap, is sent into carburizer, is then slowly heated and is warming up to 900 ~ 930 DEG C, according to carburizing
The depth of layer selects suitable soaking time, depending on 0.1 ~ 0.15mm/h；
4) it comes out and cools down: after coming out of the stove, being taken out after cementing pot is cooled to 300 DEG C indoors.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (1)
1. a kind of pack carburizing method of gear, which is characterized in that be made of the following steps:
1) configure carburizer: carburizer by mass percentage, is made of, it is desirable that charcoal 90 ~ 95% charcoals and 5 ~ 10% sodium carbonate
Uniformly, the charcoal of 3 ~ 6mm size particles accounts for the 80% of charcoal total amount to grain, and the charcoal particle of 1 ~ 3mm accounts for 20%, when in use, will be complete
New carburizer is mixed with the carburizer of recycling, and the ratio of new carburizer and old carburizer is 1:2 ~ 4；
2) carburizing pre-treatment: it will be placed in 450 ~ 550 DEG C of furnaces degreasing of gasifying to the workpiece of carburizing and cementing pot, removes surface oil
Dirty, iron filings and other harmful sundries, are not required to gear at the position of carburizing, using impermeable coating coating surface；
3) shove charge: being raised to 820 ~ 850 DEG C of 0.5 ~ 1h of temperature for carburizer first, and ready gear is placed in cementing pot
It is interior, carburizer is filled up at cementing pot gap, is sent into carburizer, is then slowly heated and is warming up to 900 ~ 930 DEG C, according to carburizing
The depth of layer selects suitable soaking time, depending on 0.1 ~ 0.15mm/h；
4) it comes out and cools down: after coming out of the stove, being taken out after cementing pot is cooled to 300 DEG C indoors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781896.XA CN109097723A (en) | 2018-07-17 | 2018-07-17 | A kind of pack carburizing method of gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781896.XA CN109097723A (en) | 2018-07-17 | 2018-07-17 | A kind of pack carburizing method of gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109097723A true CN109097723A (en) | 2018-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810781896.XA Pending CN109097723A (en) | 2018-07-17 | 2018-07-17 | A kind of pack carburizing method of gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109097723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116716575A (en) * | 2023-06-28 | 2023-09-08 | 苏州达舟精密机械有限公司 | Micro-carburization treatment method for improving mechanical property of nut |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010001508A (en) * | 2008-06-18 | 2010-01-07 | Toyota Central R&D Labs Inc | Carburization heat treatment method and carburization source material |
| CN101737479A (en) * | 2010-01-05 | 2010-06-16 | 桂林电子科技大学 | Wear-resistant gear with alloy steel on surface |
| CN103898439A (en) * | 2014-04-01 | 2014-07-02 | 安庆市吉安汽车零件锻轧有限公司 | Rare earth and carbon co-penetration process of gear |
| CN104999237A (en) * | 2014-08-14 | 2015-10-28 | 苏州优金金属成型科技有限公司 | Forging process for car spline shaft gear |
| CN105714242A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | 20CrMnMo steel driving-shaft carburizing technology |
| CN107964660A (en) * | 2017-11-28 | 2018-04-27 | 江阴市永兴机械制造有限公司 | A kind of driven gear heat treatment method |
-
2018
- 2018-07-17 CN CN201810781896.XA patent/CN109097723A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010001508A (en) * | 2008-06-18 | 2010-01-07 | Toyota Central R&D Labs Inc | Carburization heat treatment method and carburization source material |
| CN101737479A (en) * | 2010-01-05 | 2010-06-16 | 桂林电子科技大学 | Wear-resistant gear with alloy steel on surface |
| CN103898439A (en) * | 2014-04-01 | 2014-07-02 | 安庆市吉安汽车零件锻轧有限公司 | Rare earth and carbon co-penetration process of gear |
| CN104999237A (en) * | 2014-08-14 | 2015-10-28 | 苏州优金金属成型科技有限公司 | Forging process for car spline shaft gear |
| CN105714242A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | 20CrMnMo steel driving-shaft carburizing technology |
| CN107964660A (en) * | 2017-11-28 | 2018-04-27 | 江阴市永兴机械制造有限公司 | A kind of driven gear heat treatment method |
Non-Patent Citations (1)
| Title |
|---|
| 模具实用技术丛书编委会: "《模具精饰加工及表面强化技术》", 31 October 1999, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116716575A (en) * | 2023-06-28 | 2023-09-08 | 苏州达舟精密机械有限公司 | Micro-carburization treatment method for improving mechanical property of nut |
| CN116716575B (en) * | 2023-06-28 | 2024-01-16 | 苏州达舟精密机械有限公司 | Micro-carburization treatment method for improving mechanical property of nut |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181228 |
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| RJ01 | Rejection of invention patent application after publication |