CN109234715A - A kind of gear surface chemical heat treatment method - Google Patents
A kind of gear surface chemical heat treatment method Download PDFInfo
- Publication number
- CN109234715A CN109234715A CN201811209537.3A CN201811209537A CN109234715A CN 109234715 A CN109234715 A CN 109234715A CN 201811209537 A CN201811209537 A CN 201811209537A CN 109234715 A CN109234715 A CN 109234715A
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- CN
- China
- Prior art keywords
- gear
- heat treatment
- solution
- gear part
- treatment method
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- 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.)
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a kind of gear surface chemical heat treatment methods, and this method comprises the following steps: S1, heating；S2, oxide layer is removed；S3, heat preservation；S4, solution is sprayed into；S5, it dries.A kind of gear surface chemical heat treatment method disclosed by the invention; zinc solution is sprayed on the surface of ordinary gear; zinc salt is set to penetrate into gear surface and inside; form long-effective protection film; improve the physics, chemical property such as gloss, durability, the acid and alkali-resistance of gear; the mechanical strength of gear can also be improved, can be worked long hours, long service life.
Description
Technical field
The invention belongs to metal processing fields, and in particular to a kind of gear surface chemical heat treatment method.
Background technique
Metal surface thermo-chemical treatment, be using chemical reaction, sometimes dual-purpose physical method change steel layer surface chemistry at
Point and institutional framework, to obtain the metal heating processing technology than homogeneous material superior technique economic benefit, machine components,
Especially the abrasion, failure of gear, corrosion, oxidation mostly occur in metallic surface, so the performance of superficial layer is even more important,
Gear after chemical spray, it is believed that be a kind of composite material, center portion is the steel of primitive component, and surface is then to penetrate into
The composite part of alloy material, in conjunction with center portion is close crystal-type with surface layer, the technology of protecting is obtained again than surfaces such as plating
The combination of the heart, exterior portion is eager to excel more.
Gear refers to the mechanical organ that wheel rim has gear continuously to engage passing movement and power, and gear is in transmission using very
It is early that there have been gear generally has the gear teeth, tooth socket, end face, normal plane, crest top land, basic circle, reference circle etc., in the work of gear time
During work, mainly in contact, the molding received is bigger for the gear teeth, tooth socket, in the gear actually scrapped, mostly
It is the damage of the gear teeth, tooth socket, therefore, improves the mechanical performance of the gear teeth, tooth socket, has great reality to anticipate the raising of gear life
Justice.
Summary of the invention
The present invention is directed to existing the technical issues of occurring, and provides a kind of gear surface chemical heat treatment method.
Compared with the conventional method, the present invention through the following steps that specific implementation:
A kind of gear surface chemical heat treatment method, includes the following steps:
S1, heating: gear part being put into heating furnace and is heated to 700-800 DEG C, keeps 8-12min, obtains heating raw material；
S2, it removes oxide layer: the heating raw material that S1 is obtained being put into cleaning solution completely and cleans 10-15min, removal surface is miscellaneous
Matter, oxide；
S3, heat preservation: the S2 gear part that obtains that treated is put into holding furnace and keeps the temperature 15-20min, heat preservation furnace temperature is kept
At 740-760 DEG C, constant temperature gear part is obtained；
S4, it sprays into solution: the zinc solution that concentration is 15-20% being sprayed on the constant temperature gear part that S3 is obtained, is heat-treated
Gear part；
S5, dry: by the heat treatment gear part that S5 is obtained dried at gravity-flow ventilation to get.
Further, a kind of gear surface chemical heat treatment method, the cleaning solution in S2 are the hydrochloric acid that concentration is 12%-18%
Solution.
Further, a kind of gear surface chemical heat treatment method, the zinc solution in S4 are the phosphorus that concentration is 30%-35%
Sour zinc.
Further, a kind of gear surface chemical heat treatment method, S4 sprays into solution, by zinc solution even application in perseverance
On warm gear part, interval 5-8min, 4-6 times repeatedly.
In summary the invention has the following advantages: a kind of gear surface thermo-chemical treatment side disclosed by the invention
Method is uniformly sprayed using by zinc salt in gear surface, can extend the service life of gear, improves the use of the gear teeth, wheel rim
Service life, physical property, the chemical property of gear are improved, and can use the environment in high pressure, high power transmission for a long time
In, it is particularly suitable for the core components such as automobile engine, Surface thermo-chemical treatment is simple to operation, and suit large area to popularize use,
Resource can be saved, is increased economic efficiency.
Specific embodiment
A kind of specific embodiment 1: gear surface chemical heat treatment method, comprising the following steps:
S1, heating: gear part being put into heating furnace and is heated to 700 DEG C, keeps 8min, obtains heating raw material；
S2, it removes oxide layer: the heating raw material that S1 is obtained being put into cleaning solution completely and cleans 10-15min, removal surface is miscellaneous
Matter, oxide；
S3, heat preservation: the S2 gear part that obtains that treated is put into holding furnace and keeps the temperature 15-20min, heat preservation furnace temperature is kept
At 740 DEG C, constant temperature gear part is obtained；
S4, it sprays into solution: the zinc solution that concentration is 15% is sprayed on the constant temperature gear part that S3 is obtained, obtain heat treatment tooth
Take turns part；
S5, dry: by the heat treatment gear part that S5 is obtained dried at gravity-flow ventilation to get.
Cleaning solution in S2 is the hydrochloric acid solution that concentration is 12%.
Zinc solution in S4 is the trbasic zinc phosphate that concentration is 30%.
S4 sprays into solution, by zinc solution even application on constant temperature gear part, interval 5min, and 4 times repeatedly.
A kind of specific embodiment 2: gear surface chemical heat treatment method, comprising the following steps:
S1, heating: gear part being put into heating furnace and is heated to 750 DEG C, keeps 10min, obtains heating raw material；
S2, it removes oxide layer: the heating raw material that S1 is obtained being put into cleaning solution completely and cleans 12min, remove surface impurity, oxygen
Compound；
S3, heat preservation: the S2 gear part that obtains that treated is put into holding furnace and keeps the temperature 18min, heat preservation furnace temperature is maintained at
750 DEG C, obtain constant temperature gear part；
S4, it sprays into solution: the zinc solution that concentration is 18% is sprayed on the constant temperature gear part that S3 is obtained, obtain heat treatment tooth
Take turns part；
S5, dry: by the heat treatment gear part that S5 is obtained dried at gravity-flow ventilation to get.
Cleaning solution in S2 is the hydrochloric acid solution that concentration is 16%.
Zinc solution in S4 is the trbasic zinc phosphate that concentration is 32%.
S4 sprays into solution, by zinc solution even application on constant temperature gear part, interval 6min, and 5 times repeatedly.
A kind of specific embodiment 3: gear surface chemical heat treatment method, comprising the following steps:
S1, heating: gear part being put into heating furnace and is heated to 800 DEG C, keeps 12min, obtains heating raw material；
S2, it removes oxide layer: the heating raw material that S1 is obtained being put into cleaning solution completely and cleans 15min, remove surface impurity, oxygen
Compound；
S3, heat preservation: the S2 gear part that obtains that treated is put into holding furnace and keeps the temperature 20min, heat preservation furnace temperature is maintained at
760 DEG C, obtain constant temperature gear part；
S4, it sprays into solution: the zinc solution that concentration is 20% is sprayed on the constant temperature gear part that S3 is obtained, obtain heat treatment tooth
Take turns part；
S5, dry: by the heat treatment gear part that S5 is obtained dried at gravity-flow ventilation to get.
Cleaning solution in S2 is the hydrochloric acid solution that concentration is 18%.
Zinc solution in S4 is the trbasic zinc phosphate that concentration is 35%.
S4 sprays into solution, by zinc solution even application on constant temperature gear part, interval 8min, and 6 times repeatedly.
Embodiment provided above is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair
It is bright to make any form of restriction, any those of ordinary skill in the art, if not departing from the proposed skill of the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.
Claims (4)
1. a kind of gear surface chemical heat treatment method, which comprises the steps of:
S1, heating: gear part being put into heating furnace and is heated to 700-800 DEG C, keeps 8-12min, obtains heating raw material；
S2, it removes oxide layer: the heating raw material that S1 is obtained being put into cleaning solution completely and cleans 10-15min, removal surface is miscellaneous
Matter, oxide；
S3, heat preservation: the S2 gear part that obtains that treated is put into holding furnace and keeps the temperature 15-20min, heat preservation furnace temperature is kept
At 740-760 DEG C, constant temperature gear part is obtained；
S4, it sprays into solution: the zinc solution that concentration is 15-20% being sprayed on the constant temperature gear part that S3 is obtained, is heat-treated
Gear part；
S5, dry: by the heat treatment gear part that S5 is obtained dried at gravity-flow ventilation to get.
2. a kind of gear surface chemical heat treatment method according to claim 1, which is characterized in that the cleaning in the S2
Liquid is the hydrochloric acid solution that concentration is 12%-18%.
3. a kind of gear surface chemical heat treatment method according to claim 1, which is characterized in that the zinc salt in the S4
Solution is the trbasic zinc phosphate that concentration is 30%-35%.
4. a kind of gear surface chemical heat treatment method according to claim 1, which is characterized in that the S4 sprays into molten
Liquid, by zinc solution even application on constant temperature gear part, interval 5-8min, 4-6 times repeatedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209537.3A CN109234715A (en) | 2018-10-17 | 2018-10-17 | A kind of gear surface chemical heat treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209537.3A CN109234715A (en) | 2018-10-17 | 2018-10-17 | A kind of gear surface chemical heat treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109234715A true CN109234715A (en) | 2019-01-18 |
Family
ID=65053452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811209537.3A Withdrawn CN109234715A (en) | 2018-10-17 | 2018-10-17 | A kind of gear surface chemical heat treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109234715A (en) |
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2018
- 2018-10-17 CN CN201811209537.3A patent/CN109234715A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190118 |
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| WW01 | Invention patent application withdrawn after publication |