CN109112269A - The processing method of automobile nut - Google Patents
The processing method of automobile nut Download PDFInfo
- Publication number
- CN109112269A CN109112269A CN201811248139.2A CN201811248139A CN109112269A CN 109112269 A CN109112269 A CN 109112269A CN 201811248139 A CN201811248139 A CN 201811248139A CN 109112269 A CN109112269 A CN 109112269A
- Authority
- CN
- China
- Prior art keywords
- nut
- dresser
- processing
- processing method
- content
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- C23G1/083—Iron or steel solutions containing H3PO4
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of automobile parts manufacture field, in particular to a kind of processing method of automobile nut.The present invention provides the following technical scheme that a kind of processing method of automobile nut, steps are as follows: a, preparing the alloy material for being used for nut processing, and the alloy material is used into high temperature melting, the alloy material is 42CrMo round steel, wherein Mn content is 0.65wt%~0.85wt%, S content≤0.025wt%, P content≤0.025wt%, copper content≤0.015wt%；B, the alloy material for completing to dissolve in step a is injected into and implements to cast in mold；C, the dresser nut that casting is completed in step b is subjected to normalized treatment；D, the periphery that the dresser nut of quenching treatment is completed in step c is passed through into steel wire winding；E, the surface for completing the dresser nut of steel wire winding in step d is chemically treated, completes processing.By adopting the above technical scheme, a kind of processing method of high, the easy to process automobile nut of intensity is provided.
Description
Technical field
The present invention relates to a kind of automobile parts manufacture field, in particular to a kind of processing method of automobile nut.
Background technique
Automobile nut is the part being threaded together with bolt or screw rod for playing the role of fastening.Traditional automobile nut
It being processed as the raw material that will be used to process and implements melting, the raw material then dissolved, which are injected into dedicated mold, implements casting,
It will be taken out in its mold of molding nut after the completion, then by quenching, just complete the processing of nut.
However, metal material used in traditional nut is mostly to contain the higher copper alloy of amount of copper, material hardness is lower,
Easily-deformable in use or damage.
Summary of the invention
A kind of in view of the deficiencies of the prior art, the present invention provides intensity automobile nut high, easy to process
Processing method.
To achieve the above object, the present invention provides the following technical scheme that a kind of processing method of automobile nut, special
Sign is that steps are as follows: a, preparing the alloy material for being used for nut processing, and the alloy material is used high temperature melting, the conjunction
Golden material be 42CrMo round steel, wherein Mn content be 0.65wt%~0.85wt%, S content≤0.025wt%, P content≤
0.025wt%, copper content≤0.015wt%；B, the alloy material for completing to dissolve in step a is injected into and implements to pour in mold
Casting；C, the dresser nut that casting is completed in step b is subjected to normalized treatment；D, the molding spiral shell of quenching treatment will be completed in step c
Female periphery passes through steel wire winding；E, the surface for completing the dresser nut of steel wire winding in step d is chemically treated, is completed
Processing.
By adopting the above technical scheme, by will be used for nut processing material selection Mn content be 0.65wt%~
0.85wt%, S content≤0.025wt%, P content≤0.025wt%, copper content≤0.015wt% alloy material promote
Crystal grain and carbide are uniformly distributed in alloy material, reduce the influence to part hardness, make the nut processed
Intensity is protected.To the dresser nut after normalizing is completed by steel wire winding, dresser nut after treatment outer can be prevented
Micro deformation occurs for portion's size, and the size for processing it is more accurate.Nut not only can be further improved after chemical treatment
Intensity, and surface is smooth, free from admixture, without being again carried out polishing treatment to it.
The present invention is further arranged to: the normalized treatment in step c includes high temperature normalizing technique and cryogenic normalizing technique；
Dresser nut is heated to 360~280 DEG C of 2~5h of heat preservation in the high temperature normalizing processing, is then cooled to 150~100 DEG C fastly；
It carries out being air-cooled to room temperature after dresser nut is kept the temperature 2~3h at 150~100 DEG C in the cryogenic normalizing.
By adopting the above technical scheme, setting can effectively promote the carbide in alloy to obtain advantageous stimulation in this way, from
And it is improved the hardness of nut.
The present invention is further set to: the steel wire winding time in step d is 4~6h.
By adopting the above technical scheme, setting promotes will not deforming for nut in this way.
The present invention is further set to: the chemical treatment in step e includes the mixed liquor pair using dilute sulfuric acid, phosphoric acid
Dresser nut is implemented to impregnate, and soaking time is 5h -8h, and the mass percent of each component is respectively as follows: dilute sulfuric acid 10~20%；Phosphorus
Acid: 80~90%.
By adopting the above technical scheme, setting in this way promotes that the surface of nut is smooth, free from admixture, without being again carried out throwing to it
Light processing.
Specific embodiment
The present invention is a kind of processing method of automobile nut, and steps are as follows: a, preparing the alloy material for being used for nut processing
Material, and by the alloy material use high temperature melting, the alloy material be 42CrMo round steel, wherein Mn content be 0.65wt%~
0.85wt%, S content≤0.025wt%, P content≤0.025wt%, copper content≤0.015wt%；B, it will be completed in step a
The alloy material dissolved, which is injected into mold, implements casting；C, the dresser nut that casting is completed in step b is subjected to normalized treatment；
D, the periphery that the dresser nut of quenching treatment is completed in step c is passed through into steel wire winding；E, steel wire winding will be completed in step d
The surface of dresser nut is chemically treated, and processing is completed.In above scheme, by the material selection Mn that will be used for nut processing
Content is 0.65wt%~0.85wt%, S content≤0.025wt%, P content≤0.025wt%, copper content≤0.015wt%
Alloy material, promote crystal grain and carbide in alloy material to be uniformly distributed, reduce the influence to part hardness, make
The intensity of the nut processed is protected.To the dresser nut after completion normalizing by steel wire winding, dresser nut can be prevented
Micro deformation occurs for external dimensions after treatment, and the size for processing it is more accurate.It not only can be into after chemical treatment
The intensity of the raising nut of one step, and surface is smooth, free from admixture, without being again carried out polishing treatment to it.
In embodiments of the present invention, the normalized treatment in step c includes high temperature normalizing technique and cryogenic normalizing technique；Institute
Dresser nut is heated to 360~280 DEG C of 2~5h of heat preservation in the high temperature normalizing processing stated, and is then cooled to 150~100 DEG C fastly；Institute
It carries out being air-cooled to room temperature after dresser nut is kept the temperature 2~3h at 150~100 DEG C in the cryogenic normalizing stated.Steel in step d
The silk winding time is 4~6h.Chemical treatment in step e includes real to dresser nut using the mixed liquor of dilute sulfuric acid, phosphoric acid
Immersion is applied, soaking time is 5h -8h, and the mass percent of each component is respectively as follows: dilute sulfuric acid 10~20%；Phosphoric acid: 80~90%.
Claims (5)
1. a kind of processing method of automobile nut, which is characterized in that steps are as follows: a, preparing the alloy material for being used for nut processing
Material, and by the alloy material use high temperature melting, the alloy material be 42CrMo round steel, wherein Mn content be 0.65wt%~
0.85wt%, S content≤0.025wt%, P content≤0.025wt%, copper content≤0.015wt%；
B, the alloy material for completing to dissolve in step a is injected into and implements to cast in mold；
C, the dresser nut that casting is completed in step b is subjected to normalized treatment；
D, the periphery that the dresser nut of quenching treatment is completed in step c is passed through into steel wire winding；
E, the surface for completing the dresser nut of steel wire winding in step d is chemically treated, completes processing.
2. the processing method of automobile nut according to claim 1, it is characterised in that: the normalizing in the step c
Processing includes high temperature normalizing technique and cryogenic normalizing technique；In the described high temperature normalizing processing dresser nut be heated to 360~
280 DEG C of 2~5h of heat preservation, are then cooled to 150~100 DEG C fastly；By dresser nut at 150~100 DEG C in the cryogenic normalizing
It carries out being air-cooled to room temperature after 2~3h of lower heat preservation.
3. the processing method of automobile nut according to claim 1 or 2, it is characterised in that: the steel in the step d
The silk winding time is 4~6h.
4. the processing method of automobile nut according to claim 1 or 2, it is characterised in that: the change in the step e
Processing includes to implement to impregnate to dresser nut using the mixed liquor of dilute sulfuric acid, phosphoric acid, and soaking time is 5h -8h, each component
Mass percent be respectively as follows: dilute sulfuric acid 10~20%；Phosphoric acid: 80~90%.
5. the processing method of automobile nut according to claim 3, it is characterised in that: the chemistry in the step e
Processing includes to implement to impregnate to dresser nut using the mixed liquor of dilute sulfuric acid, phosphoric acid, and soaking time is 5h -8h, each component
Mass percent is respectively as follows: dilute sulfuric acid 10~20%；Phosphoric acid: 80~90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248139.2A CN109112269A (en) | 2018-10-25 | 2018-10-25 | The processing method of automobile nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248139.2A CN109112269A (en) | 2018-10-25 | 2018-10-25 | The processing method of automobile nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109112269A true CN109112269A (en) | 2019-01-01 |
Family
ID=64855331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811248139.2A Pending CN109112269A (en) | 2018-10-25 | 2018-10-25 | The processing method of automobile nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109112269A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943207A (en) * | 2012-11-09 | 2013-02-27 | 谢亚平 | High-strength fastener and processing method thereof |
| CN107350725A (en) * | 2016-05-09 | 2017-11-17 | 南京晨伟机械设备制造有限公司 | A kind of processing technology of stuffing nut |
| CN107350734A (en) * | 2016-05-09 | 2017-11-17 | 南京晨伟机械设备制造有限公司 | A kind of manufacturing process of high intensity hex nut for plunger pump |
-
2018
- 2018-10-25 CN CN201811248139.2A patent/CN109112269A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943207A (en) * | 2012-11-09 | 2013-02-27 | 谢亚平 | High-strength fastener and processing method thereof |
| CN107350725A (en) * | 2016-05-09 | 2017-11-17 | 南京晨伟机械设备制造有限公司 | A kind of processing technology of stuffing nut |
| CN107350734A (en) * | 2016-05-09 | 2017-11-17 | 南京晨伟机械设备制造有限公司 | A kind of manufacturing process of high intensity hex nut for plunger pump |
Non-Patent Citations (4)
| Title |
|---|
| 倪红军 等: "《工程材料》", 31 August 2016, 东南大学出版社 * |
| 杨嗣信: "《高层建筑施工手册》", 31 December 2001, 中国建筑工业出版社 * |
| 潘际炎: "《栓焊钢桥的研究》", 31 December 1983, 中国铁道出版社 * |
| 王洪明: "《结构钢手册》", 31 December 1985, 河北科学技术出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190101 |