CN106319341A - Preparation method for spring steel - Google Patents
Preparation method for spring steel Download PDFInfo
- Publication number
- CN106319341A CN106319341A CN201610793887.3A CN201610793887A CN106319341A CN 106319341 A CN106319341 A CN 106319341A CN 201610793887 A CN201610793887 A CN 201610793887A CN 106319341 A CN106319341 A CN 106319341A
- Authority
- CN
- China
- Prior art keywords
- spring steel
- preparation
- 10min
- temperature
- raw material
- 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
- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/021—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by their composition, e.g. comprising materials providing for particular spring properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0208—Alloys
Abstract
The invention discloses a preparation method for spring steel. The preparation method comprises the following steps: step (1), uniformly mixing raw materials of spring steel, wherein the raw materials of spring steel comprise the following components in percentage by mass: 0.71-0.82% of C, 3.1-3.5% of Si, 0.3-0.5% of Mn, 0.012-0.013% of Ti, 0.1-0.2% of S, 0.3-0.5% of Al and the balance Fe; step (2), carrying out primary smelting, wherein primary smelting lasts for 5-10 minutes at a temperature being 1300 DEG C, the temperature is increased to 1700 DEG C from 1300 DEG C at a rate being 10-15 DEG C/min, and the primary smelting lasts for 5-10 minutes at 1700 DEG C; step (3) refining, wherein a refining temperature is 1550-1600 DEG C; step (4), cooling and forming; step (5), rolling; step (6), quenching; and step (7), tempering. According to the preparation method disclosed by the invention, fatigue resistance of the spring steel is improved.
Description
Technical field
The present invention relates to the preparation method of a kind of spring steel.
Background technology
The performance indications such as intensity, toughness and grain size are only capable of indirectly evaluating spring steel, and anti-fatigue performance is only reflection bullet
The most important index of spring steel, it not only can reflect the quality of the property indices such as the intensity of spring steel, toughness and grain size,
The optimal coupling between above-mentioned each performance can also be reflected and by the shadow to spring steel service life of the coupling between this performance
Ring.And the inherent quality of spring steel has the biggest associating with the fatigue resistance of spring steel.Therefore, no matter spring steel kind also
The research in terms of production technology, all with improve spring steel fatigue behaviour as final purpose.
Summary of the invention
For above-mentioned technical problem, the present invention has designed and developed the preparation side of the excellent spring steel of a kind of anti-fatigue performance
Method.
The present invention provides techniques below scheme:
A kind of preparation method of spring steel, including:
Step (1) is by the raw material mix homogeneously of spring steel, and the raw material of spring steel includes following group by mass percentage
Point: 0.71～the C of 0.82%, 3.1～the Si of 3.5%, 0.3～the Mn of 0.5%, 0.012～the Ti of 0.013%, 0.1～
The Al of the S and 0.3～0.5% of 0.2%, surplus is Fe；
Step (2) is just refined, and just refining continues 5～10min at 1300 DEG C, starts from 1300 DEG C with 10～15 DEG C/min afterwards
Speed rise to 1700 DEG C, and at 1700 DEG C again continue 5～10min；
Step (3) refine, the temperature of refine is 1550～1600 DEG C；
Step (4) cooling molding；
Step (5) rolls；
Step (6) quenches；
Step (7) is tempered.
Preferably, in the preparation method of described spring steel, the raw material of spring steel include by mass percentage with
Lower component: the C of 0.82%, the Si of 3.1%, the Mn of 0.33%, the Ti of 0.012%, the S of 0.15% and the Al of 0.34%, surplus
For Fe.
Preferably, in the preparation method of described spring steel, in described step (2), just refining continues at 1300 DEG C
10min, continues 10min at 1700 DEG C again.
Preferably, in the preparation method of described spring steel, in described step (2), from 1300 DEG C start with 12 DEG C/
The speed of min rises to 1700 DEG C.
Preferably, in the preparation method of described spring steel, in described step (3), concise temperature is 1550 DEG C.
The present invention improves the anti-fatigue performance of spring steel.
Detailed description of the invention
The present invention is described in further detail below, with make those skilled in the art with reference to description word can evidence
To implement.
The present invention provides the preparation method of a kind of spring steel, including:
Step (1) is by the raw material mix homogeneously of spring steel, and the raw material of spring steel includes following group by mass percentage
Point: 0.71～the C of 0.82%, 3.1～the Si of 3.5%, 0.3～the Mn of 0.5%, 0.012～the Ti of 0.013%, 0.1～
The Al of the S and 0.3～0.5% of 0.2%, surplus is Fe；
Step (2) is just refined, and just refining continues 5～10min at 1300 DEG C, starts from 1300 DEG C with 10～15 DEG C/min afterwards
Speed rise to 1700 DEG C, and at 1700 DEG C again continue 5～10min；
Step (3) refine, the temperature of refine is 1550～1600 DEG C；
Step (4) cooling molding；
Step (5) rolls；
Step (6) quenches；
Step (7) is tempered.
The present invention accurately sets the condition of just refining, carries out certain time the most at relatively low temperature, makes
Raw mixture first changes relative to the part in outside, is rising to certain speed under higher temperature afterwards, is making raw material
The change of mixture is diffused to inner side by outside.This organizational structure contributing to improving the outside of spring steel, so that spring steel
The mechanical property in outside is more excellent.
The fatigue limit of the spring steel that the present invention prepares can reach 990MPa, compared to traditional handicraft
800MPa, has increased significantly.
In the raw material composition of spring steel, C can improve intensity and the hardness of spring steel；Si can improve the bullet of spring steel
Property, and acid resistance can be improved；Mn can improve the intensity of spring steel.
Preferably, in the preparation method of described spring steel, the raw material of spring steel include by mass percentage with
Lower component: the C of 0.82%, the Si of 3.1%, the Mn of 0.33%, the Ti of 0.012%, the S of 0.15% and the Al of 0.34%, surplus
For Fe.
Preferably, in the preparation method of described spring steel, in described step (2), just refining continues at 1300 DEG C
10min, continues 10min at 1700 DEG C again.
Preferably, in the preparation method of described spring steel, in described step (2), from 1300 DEG C start with 12 DEG C/
The speed of min rises to 1700 DEG C.
Preferably, in the preparation method of described spring steel, in described step (3), concise temperature is 1550 DEG C.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed
Using, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details.
Claims (5)
1. the preparation method of a spring steel, it is characterised in that including:
Step (1) is by the raw material mix homogeneously of spring steel, and the raw material of spring steel includes following components by mass percentage:
0.71～the C of 0.82%, 3.1～the Si of 3.5%, 0.3～the Mn of 0.5%, 0.012～the Ti of 0.013%, 0.1～0.2%
The Al of S and 0.3～0.5%, surplus is Fe；
Step (2) is just refined, and just refining continues 5～10min at 1300 DEG C, starts the speed with 10～15 DEG C/min from 1300 DEG C afterwards
Degree rises to 1700 DEG C, and continues 5～10min at 1700 DEG C again；
Step (3) refine, the temperature of refine is 1550～1600 DEG C；
Step (4) cooling molding；
Step (5) rolls；
Step (6) quenches；
Step (7) is tempered.
2. the preparation method of spring steel as claimed in claim 1, it is characterised in that the raw material of spring steel includes by percent mass
Following components than meter: the S's and 0.34% of the Mn of the C of 0.82%, the Si of 3.1%, 0.33%, the Ti of 0.012%, 0.15%
Al, surplus is Fe.
3. the preparation method of spring steel as claimed in claim 1, it is characterised in that in described step (2), just refining is at 1300 DEG C
Continue down 10min, at 1700 DEG C, continue 10min again.
4. the preparation method of spring steel as claimed in claim 3, it is characterised in that in described step (2), from the beginning of 1300 DEG C
1700 DEG C are risen to the speed of 12 DEG C/min.
5. the preparation method of spring steel as claimed in claim 1, it is characterised in that in described step (3), concise temperature is
1550℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793887.3A CN106319341A (en) | 2016-08-31 | 2016-08-31 | Preparation method for spring steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793887.3A CN106319341A (en) | 2016-08-31 | 2016-08-31 | Preparation method for spring steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319341A true CN106319341A (en) | 2017-01-11 |
Family
ID=57786217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610793887.3A Pending CN106319341A (en) | 2016-08-31 | 2016-08-31 | Preparation method for spring steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319341A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177779A (en) * | 2017-05-22 | 2017-09-19 | 陶圣香 | A kind of spring steel and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671792A (en) * | 2008-09-12 | 2010-03-17 | 攀钢集团研究院有限公司 | Spring steel and preparation method thereof |
| CN103614634A (en) * | 2013-11-28 | 2014-03-05 | 柳城县鼎铭金属制品有限公司 | Alloy spring wire and preparation method thereof |
| CN105838980A (en) * | 2015-12-09 | 2016-08-10 | 苏州市吴中区胥口丰收机械配件厂 | High-strength spring steel and preparation method thereof |
-
2016
- 2016-08-31 CN CN201610793887.3A patent/CN106319341A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671792A (en) * | 2008-09-12 | 2010-03-17 | 攀钢集团研究院有限公司 | Spring steel and preparation method thereof |
| CN103614634A (en) * | 2013-11-28 | 2014-03-05 | 柳城县鼎铭金属制品有限公司 | Alloy spring wire and preparation method thereof |
| CN105838980A (en) * | 2015-12-09 | 2016-08-10 | 苏州市吴中区胥口丰收机械配件厂 | High-strength spring steel and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 付广艳 主编: "《机械工程材料》", 28 February 2014, 北京理工大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177779A (en) * | 2017-05-22 | 2017-09-19 | 陶圣香 | A kind of spring steel and preparation method thereof |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180619 Address after: 518000 Guangdong Shenzhen Longhua New District big wave street Longsheng community Tenglong road gold rush e-commerce incubation base exhibition hall E commercial block 706 Applicant after: Shenzhen step Technology Transfer Center Co., Ltd. Address before: 536000 South Asia building, 66 North Bay West Road, Yinhai, Beihai, the Guangxi Zhuang Autonomous Region Applicant before: Lai Shiquan |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |