CN108998722A - A kind of the oil-temper spring steel wire and preparation method of ultra-fine high tenacity - Google Patents
A kind of the oil-temper spring steel wire and preparation method of ultra-fine high tenacity Download PDFInfo
- Publication number
- CN108998722A CN108998722A CN201810585044.3A CN201810585044A CN108998722A CN 108998722 A CN108998722 A CN 108998722A CN 201810585044 A CN201810585044 A CN 201810585044A CN 108998722 A CN108998722 A CN 108998722A
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- China
- Prior art keywords
- spring steel
- oil
- steel wire
- ultra
- high tenacity
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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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Links
- 229910000639 Spring steel Inorganic materials 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000010791 quenching Methods 0.000 claims abstract description 17
- 230000000171 quenching effect Effects 0.000 claims abstract description 16
- 238000005496 tempering Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 230000002929 anti-fatigue Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- 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
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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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)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a kind of oil-temper spring steel wires of ultra-fine high tenacity, which is characterized in that according to mass percent includes following component: C 0.5-0.8%；Si 1.2-2.5%；Mn 0.4-0.8%；Cr 0.7-1.0%；V 0.01-0.03%；Nb0.005-0.009%；The oil-temper spring steel wire presses the observation of structure observation photo after quenching and tempering, and the density of carbide of the particle diameter not less than 0.05 μm is no more than 2/μm2.The present invention also proposes a kind of preparation method of the oil-temper spring steel wire of ultra-fine high tenacity, it is characterized in that, quenching in quenching/tempering step is by being heated to the temperature not higher than 1100 DEG C, to be not less than the heating speed of 150 DEG C/s, since beginning heat to cooling, the time not higher than 15 seconds is carried out.The present invention is urgent for the demand in the prior art to the components of engine especially Valve Spring Steel Wires material, the oil-temper spring steel wire and preparation method for proposing a kind of ultra-fine high tenacity, realize the Valve Spring Steel Wires material of high tenacity, highly anti-fatigue, high stability.
Description
Technical field
The present invention relates to a kind of oil-temper spring steel wire of ultra-fine high tenacity and preparation methods, belong to valve spring material skill
Art field.
Background technique
As automobile industry further improves the requirement that engine designs, it is mainly manifested in the fuel oil effect to engine
The requirement of rate, discharge is higher and higher, the volume and weight of engine it is smaller and smaller, simultaneously for the requirement of vehicle safety
It is higher and higher.Requirement for valve spring material technology be spring sizes will more refinement, stress more increases.
Demand in currently available technology to the components of engine especially Valve Spring Steel Wires material is urgent, therefore such as
The oil-temper spring steel wire and preparation method of what ultra-fine high tenacity of research and development develop meaning weight to Valve Spring Steel Wires materials industry
Greatly.
Summary of the invention
It is an object of the present invention to overcome defect of the existing technology, above-mentioned technical problem is solved, is proposed a kind of ultra-fine
The oil-temper spring steel wire and preparation method of high tenacity.
The present invention adopts the following technical scheme: a kind of oil-temper spring steel wire of ultra-fine high tenacity, which is characterized in that according to
Mass percent includes following component:
The oil-temper spring steel wire presses the observation of structure observation photo after quenching and tempering, and particle diameter is not less than
The density of 0.05 μm of carbide is no more than 2/μm2。
As a kind of preferred embodiment, the oil-temper spring steel wire also includes 0.5-0.9% or 5.2-5.9%
Remaining γ.
As a kind of preferred embodiment, the oil-temper spring steel wire also includes the Mo of 0.010-0.035%.
As a kind of preferred embodiment, the oil-temper spring steel wire also includes the W of 0.010-0.035%.
The present invention also proposes a kind of preparation method of the oil-temper spring steel wire of ultra-fine high tenacity, which is characterized in that quenching/
Quenching in tempering step, to be not less than the heating speed of 150 DEG C/s, is started certainly by being heated to the temperature not higher than 1100 DEG C
It is heated to cooling to start, carries out the time not higher than 15 seconds.
As a kind of preferred embodiment, the tempering in the quenching/tempering step is by being heated to not higher than 450-600
DEG C temperature, to be not less than the heating speed of 150 DEG C/s, since begin heat to it is cooling, carry out the time not higher than 15 seconds.
As a kind of preferred embodiment, the preparation method further includes that the thickness of surface layer 0.15mm is peelled off by removing the peel mould
Degree.
As a kind of preferred embodiment, the preparation method further includes the pickling phosphorus for keeping surface treatment uniformity
Change process.
Advantageous effects of the invention: first, the present invention is directed to the urgent demand of Valve Spring Steel Wires, a kind of ultra-fine
The oil-temper spring steel wire of high tenacity, and meet high tenacity, highly anti-fatigue, high-stability requirement；Second, the present invention passes through peeling
Mould peels off the thickness of surface layer 0.15mm to coil of wire member surface, and to pre-process to product subsurface defect, when peeling prevents steel wire from drawing
It is disconnected；Third, ultra-fine high-toughness spring steel silk prepared by the present invention can reach sufficiently high stress, and balance each other therewith other
Mechanical performance, so that material still can have sufficiently high fatigue life in high stress；4th, preparation side of the invention
Method is by realizing the high tenacity of product and the uniformity of surface treatment, in steel wire to quenching/tempering and acid washing phosphorization processing
The fluctuation of the phosphatization thickness of different piece is no more than 20%.
Specific embodiment
The invention will be further described below.Following embodiment is only used for clearly illustrating technical side of the invention
Case, and not intended to limit the protection scope of the present invention.
A kind of oil-temper spring steel wire of ultra-fine high tenacity, which is characterized in that according to mass percent include following component:
The oil-temper spring steel wire presses the observation of structure observation photo after quenching and tempering, and particle diameter is not less than
The density of 0.05 μm of carbide is no more than 2/μm2。
As a kind of preferred embodiment, the oil-temper spring steel wire also includes 0.5-0.9% or 5.2-5.9%
Remaining γ.
As a kind of preferred embodiment, the oil-temper spring steel wire also includes the Mo of 0.010-0.035%.
As a kind of preferred embodiment, the oil-temper spring steel wire also includes the W of 0.010-0.035%.
The present invention also proposes a kind of preparation method of the oil-temper spring steel wire of ultra-fine high tenacity, which is characterized in that quenching/
Quenching in tempering step, to be not less than the heating speed of 150 DEG C/s, is started certainly by being heated to the temperature not higher than 1100 DEG C
It is heated to cooling to start, carries out the time not higher than 15 seconds.
As a kind of preferred embodiment, the tempering in the quenching/tempering step is by being heated to not higher than 450-600
DEG C temperature, to be not less than the heating speed of 150 DEG C/s, since begin heat to it is cooling, carry out the time not higher than 15 seconds.
As a kind of preferred embodiment, the preparation method further includes that the thickness of surface layer 0.15mm is peelled off by removing the peel mould
Degree.
As a kind of preferred embodiment, the preparation method further includes the pickling phosphorus for keeping surface treatment uniformity
Change process.
Advantageous effects of the invention: first, the present invention is directed to the urgent demand of Valve Spring Steel Wires, a kind of ultra-fine
The oil-temper spring steel wire of high tenacity, and meet high tenacity, highly anti-fatigue, high-stability requirement；Second, the present invention passes through peeling
Mould peels off the thickness of surface layer 0.15mm to coil of wire member surface, and to pre-process to product subsurface defect, when peeling prevents steel wire from drawing
It is disconnected；Third, ultra-fine high-toughness spring steel silk prepared by the present invention can reach sufficiently high stress, and balance each other therewith other
Mechanical performance, so that material still can have sufficiently high fatigue life in high stress；4th, preparation side of the invention
Method is by realizing the high tenacity of product and the uniformity of surface treatment, in steel wire to quenching/tempering and acid washing phosphorization processing
The fluctuation of the phosphatization thickness of different piece is no more than 20%.
The oil-temper spring steel wire the key technical indexes of preparation of the invention is as follows:
A. the size of non-metallic inclusion is maintained at 15um or less.
B. product hardness has the contraction percentage of area >=50% while 55~60HRC.
C. the part of the surface decarburization of maximum admissible and the depth of surface defect are the 0.5% of steel wire diameter range, without complete
Emaciated face carbon.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of oil-temper spring steel wire of ultra-fine high tenacity, which is characterized in that according to mass percent include following component:
The oil-temper spring steel wire presses the observation of structure observation photo after quenching and tempering, and particle diameter is not less than 0.05 μm
Carbide density be no more than 2/μm2。
2. a kind of oil-temper spring steel wire of ultra-fine high tenacity according to claim 1, which is characterized in that the oil-temper
Spring steel wire also includes the remaining γ of 0.5-0.9% or 5.2-5.9%.
3. a kind of oil-temper spring steel wire of ultra-fine high tenacity according to claim 1, which is characterized in that the oil-temper
Spring steel wire also includes the Mo of 0.010-0.035%.
4. a kind of oil-temper spring steel wire of ultra-fine high tenacity according to claim 1, which is characterized in that the oil-temper
Spring steel wire also includes the W of 0.010-0.035%.
5. a kind of method for the oil-temper spring steel wire for preparing ultra-fine high tenacity described in claim 1, which is characterized in that quench
Quenching in fire/tempering step is by being heated to the temperature not higher than 1100 DEG C, to be not less than the heating speed of 150 DEG C/s, from
It begins heat to cooling to start, carries out the time not higher than 15 seconds.
6. a kind of preparation method of the oil-temper spring steel wire of ultra-fine high tenacity described in claim 5, which is characterized in that described
Tempering in quenching/tempering step is by being heated to the temperature not higher than 450-600 DEG C, with the heating speed not less than 150 DEG C/s
Degree carries out the time not higher than 15 seconds since beginning heat to cooling.
7. a kind of preparation method of the oil-temper spring steel wire of ultra-fine high tenacity described in claim 5, which is characterized in that described
Preparation method further includes that the thickness of surface layer 0.15mm is peelled off by removing the peel mould.
8. a kind of preparation method of the oil-temper spring steel wire of ultra-fine high tenacity described in claim 5, which is characterized in that described
Preparation method further includes the acid washing phosphorization process for keeping surface treatment uniformity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585044.3A CN108998722A (en) | 2018-06-08 | 2018-06-08 | A kind of the oil-temper spring steel wire and preparation method of ultra-fine high tenacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585044.3A CN108998722A (en) | 2018-06-08 | 2018-06-08 | A kind of the oil-temper spring steel wire and preparation method of ultra-fine high tenacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108998722A true CN108998722A (en) | 2018-12-14 |
Family
ID=64600989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810585044.3A Pending CN108998722A (en) | 2018-06-08 | 2018-06-08 | A kind of the oil-temper spring steel wire and preparation method of ultra-fine high tenacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108998722A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152625A (en) * | 1995-09-01 | 1997-06-25 | 住友电气工业株式会社 | Oil tempering steel wire and making method thereof |
| CN101321885A (en) * | 2006-03-31 | 2008-12-10 | 新日本制铁株式会社 | Heat-treated steel for high-strength springs |
| CN101397629A (en) * | 2007-09-26 | 2009-04-01 | 南京依维柯汽车有限公司 | High intensity variable section spring piece under high stress and method for producing the same |
| CN103243267A (en) * | 2013-04-12 | 2013-08-14 | 韵升控股集团有限公司 | Alloy steel |
-
2018
- 2018-06-08 CN CN201810585044.3A patent/CN108998722A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152625A (en) * | 1995-09-01 | 1997-06-25 | 住友电气工业株式会社 | Oil tempering steel wire and making method thereof |
| CN101321885A (en) * | 2006-03-31 | 2008-12-10 | 新日本制铁株式会社 | Heat-treated steel for high-strength springs |
| CN101397629A (en) * | 2007-09-26 | 2009-04-01 | 南京依维柯汽车有限公司 | High intensity variable section spring piece under high stress and method for producing the same |
| CN103243267A (en) * | 2013-04-12 | 2013-08-14 | 韵升控股集团有限公司 | Alloy steel |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181214 |
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| RJ01 | Rejection of invention patent application after publication |