CN108676973A - A kind of method of oil-temper spring steel wire destressing - Google Patents
A kind of method of oil-temper spring steel wire destressing Download PDFInfo
- Publication number
- CN108676973A CN108676973A CN201810586105.8A CN201810586105A CN108676973A CN 108676973 A CN108676973 A CN 108676973A CN 201810586105 A CN201810586105 A CN 201810586105A CN 108676973 A CN108676973 A CN 108676973A
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- China
- Prior art keywords
- steel wire
- oil
- temperature
- destressing
- tempering
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Classifications
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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
- C21D1/18—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of methods of oil-temper spring steel wire destressing, steel wire is heated uniformly to temperature t2 from room temperature t1 first, then steel wire is maintained at temperature t2, the time of holding is T1, again by steel wire heating to temperature t3, so that wire temperature is kept for the T2 times in temperature t3, then tempering oil is heated to temperature t4, steel wire is put into tempering oil, closes the heating device of tempering oil；So that tempering oil is in natural cooling shape with steel wire and steel wire is put into air natural cooling from taking-up in tempering oil.The present invention can reduce the internal stress during Steel Wire Heat Treatment to the maximum extent, improve its ductility or toughness, preferable mechanical property can be obtained, improve structure stability, the residual stress generated when workpiece quenching is eliminated, prevent from deforming and is cracked, hardness, intensity, plasticity and the toughness of steel wire rope are adjusted, reach performance requirement, improves processing performance.
Description
Technical field
The present invention relates to Steel Wire Heat Treatment technical fields, and in particular to a kind of method of oil-temper spring steel wire destressing.
Background technology
In process of production, through removing the peel and will produce certain stress after drawing process stress, this kind of stress will for steel wire
It is heated in subsequent process for hardening steel wires release, to cause steel wire to crimp section by section, corrugated phenomenon, in the process of wind spring
In spring can be caused different in size, these seriously affect the quality of steel wire.
Therefore, the stress that steel wire how is released effectively during Production for Steel Wire is most important.
Invention content
To solve deficiency in the prior art, the present invention provides a kind of method of oil-temper spring steel wire destressing, solves
Internal stress excessive technical problem when Steel Wire Heat Treatment in the prior art.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of method of oil-temper spring steel wire destressing, it is characterised in that：It works according to the following steps：
Step 1：Steel wire is heated uniformly to temperature t2 from room temperature t1, heating speed is 10 DEG C/min clocks, and the t2 is in
Between 100 DEG C to 120 DEG C
Step 2：Steel wire is maintained at temperature t2, the time of holding is T1；The T1 is in 20-50min.
Step 3：Again by steel wire heating to temperature t3, heating speed is 15-30 DEG C/min；The t3 is in 600 to 700
Between DEG C；
Step 4：Heating furnace is adjusted, wire temperature is made to be kept for the T2 times in temperature t3；The range of the T2 is 100 to 150
Minute.
Step 5：Tempering oil is heated to temperature t4；The range of the t4 is 60 to 80 DEG C.
Step 6：Steel wire is put into tempering oil；
Step 7：Tempering oil is kept to be in temperature t4；
Step 8：Close the heating device of tempering oil；Tempering oil is set to be in natural cooling state with steel wire；
Step 9：Steel wire is put into air natural cooling from taking-up in tempering oil；The ambient wind velocity of natural cooling is little
In 5m/s；Room temperature is in：0-40℃.
A kind of method of oil-temper spring steel wire destressing above-mentioned, the step 1 are equal to 115 with the t2 in step 2
℃。
A kind of method of oil-temper spring steel wire destressing above-mentioned, the T1 in the step 2 are equal to 30min.
The heating speed of a kind of method of oil-temper spring steel wire destressing above-mentioned, step 3 steel wire is 25 DEG C/min.
A kind of method of oil-temper spring steel wire destressing above-mentioned, the T2 in the step 4 are equal to 120 minutes.
A kind of method of oil-temper spring steel wire destressing above-mentioned, the t4 in the step 5 are equal to 75 DEG C.
A kind of method of oil-temper spring steel wire destressing above-mentioned, steel wire are put into the speed into tempering oil and are not less than
5m/s。
A kind of method of oil-temper spring steel wire destressing above-mentioned, the room temperature in step 9 are equal to 20 DEG C.
The advantageous effect that the present invention is reached：The present invention can reduce the inside during Steel Wire Heat Treatment to the maximum extent
Stress improves its ductility or toughness, can obtain preferable mechanical property, improves structure stability, is generated when eliminating workpiece quenching
Residual stress, prevent deform and crack, adjust hardness, intensity, plasticity and the toughness of steel wire rope, reach performance requirement,
Improve processing performance.
Description of the drawings
Fig. 1 is the process drawing of the present invention.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1：Present embodiment discloses a kind of method of oil-temper spring steel wire destressing, work according to the following steps
Make：
Temperature is equal to t2 when A1 points steel wire being heated uniformly to from room temperature t1 first in temperature t2, Fig. 1；Heating speed is
10 DEG C/min clocks, t2 are between 100 DEG C to 120 DEG C, and best temperature is 115 DEG C.
Then steel wire is maintained at temperature t2, the time of holding is T1, and T1 is that for A1 between A2, T1 is in 20- in Fig. 1
50min, by experiment, the Best Times of the T1 of the present embodiment are equal to 30min
Again by steel wire heating to temperature t3, temperature t3 is at the time A3 for Fig. 1, and heating speed is 15-30 DEG C/min；
T3 is between 600 to 700 DEG C, and in this course, best heating speed is equal to 25 DEG C/min.
Heating furnace is adjusted, wire temperature is made to be kept for the T2 times in temperature t3；The range of T2 is 100 to 150 minutes, best
Soaking time is 120 minutes.Soaking time A3 to A4 in attached drawing 1.
Tempering oil is heated to temperature t4；The range of t4 is 60 to 80 DEG C, and best temperature is 75 DEG C.
Steel wire is put into tempering oil, in order to ensure that the tempering effect of entire steel wire rope, steel wire are put into tempering oil
Speed should as far as possible quickly, in the present embodiment steel wire be put into the speed into tempering oil be not less than 5m/s；Keep tempering oil
In temperature t4；
Close the heating device of tempering oil；Tempering oil is set to be in natural cooling state (A4-A5 processes) with steel wire；
Steel wire is put into air natural cooling (A5-A6 processes) from taking-up in tempering oil；In order to prevent when natural cooling,
The temperature of steel wire rope drops too fast, and the ambient wind velocity of natural cooling is not more than 5m/s；Room temperature is in：0-40℃.Room temperature is 20
DEG C when, effect is preferable.
The present invention can reduce the internal stress during Steel Wire Heat Treatment to the maximum extent, improve its ductility or toughness,
Preferable mechanical property can be obtained, structure stability is improved, the residual stress generated when workpiece quenching is eliminated, prevents from deforming and open
It splits, adjusts hardness, intensity, plasticity and the toughness of steel wire rope, reach performance requirement, improve processing performance.
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 method of oil-temper spring steel wire destressing, it is characterised in that：It works according to the following steps：
Step 1：Steel wire is heated uniformly to temperature t2 from room temperature t1, heating speed is 10 DEG C/min clocks, and the t2 is in 100
DEG C between 120 DEG C
Step 2：Steel wire is maintained at temperature t2, the time of holding is T1；The T1 is in 20-50min.
Step 3：Again by steel wire heating to temperature t3, heating speed is 15-30 DEG C/min；The t3 be in 600 to 700 DEG C it
Between；
Step 4：Heating furnace is adjusted, wire temperature is made to be kept for the T2 times in temperature t3；The range of the T2 is 100 to 150 points
Clock.
Step 5：Tempering oil is heated to temperature t4；The range of the t4 is 60 to 80 DEG C.
Step 6：Steel wire is put into tempering oil；
Step 7：Tempering oil is kept to be in temperature t4；
Step 8：Close the heating device of tempering oil；Tempering oil is set to be in natural cooling state with steel wire；
Step 9：Steel wire is put into air natural cooling from taking-up in tempering oil；The ambient wind velocity of natural cooling is not more than 5m/
s；Room temperature is in：0-40℃.
2. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：The step 1
It is equal to 115 DEG C with the t2 in step 2.
3. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：The step 2
In T1 be equal to 30min.
4. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：Step 3 steel wire
Heating speed be 25 DEG C/min.
5. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：The step 4
In T2 be equal to 120 minutes.
6. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：The step 5
In t4 be equal to 75 DEG C.
7. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：Steel wire be put into
Speed in tempering oil is not less than 5m/s.
8. a kind of method of oil-temper spring steel wire destressing according to claim 1, it is characterised in that：In step 9
Room temperature is equal to 20 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810586105.8A CN108676973A (en) | 2018-06-08 | 2018-06-08 | A kind of method of oil-temper spring steel wire destressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810586105.8A CN108676973A (en) | 2018-06-08 | 2018-06-08 | A kind of method of oil-temper spring steel wire destressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108676973A true CN108676973A (en) | 2018-10-19 |
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ID=63810318
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810586105.8A Pending CN108676973A (en) | 2018-06-08 | 2018-06-08 | A kind of method of oil-temper spring steel wire destressing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111961820A (en) * | 2020-07-22 | 2020-11-20 | 金华浩翔汽配有限公司 | Method for reducing internal stress of product by using high-temperature oven |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270413A (en) * | 1987-04-27 | 1988-11-08 | Daido Steel Co Ltd | Production of cold forming coil spring |
| CN101096174A (en) * | 2006-06-29 | 2008-01-02 | 上海汽车股份有限公司中国弹簧厂 | Automobile stabilizer bar and manufacturing method thereof |
| CN101287851A (en) * | 2005-08-05 | 2008-10-15 | 住友电气工业株式会社 | Oil-tempered wire and process for producing the same |
| CN101543947A (en) * | 2009-04-25 | 2009-09-30 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing spring of derrick centralizer |
| CN101665864A (en) * | 2009-09-30 | 2010-03-10 | 姚凤臣 | Production method of high speed steel prehardening materials |
| CN106011433A (en) * | 2016-08-03 | 2016-10-12 | 苏州市虎丘区浒墅关弹簧厂 | Heat treatment process of high strength spring |
-
2018
- 2018-06-08 CN CN201810586105.8A patent/CN108676973A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270413A (en) * | 1987-04-27 | 1988-11-08 | Daido Steel Co Ltd | Production of cold forming coil spring |
| CN101287851A (en) * | 2005-08-05 | 2008-10-15 | 住友电气工业株式会社 | Oil-tempered wire and process for producing the same |
| CN101096174A (en) * | 2006-06-29 | 2008-01-02 | 上海汽车股份有限公司中国弹簧厂 | Automobile stabilizer bar and manufacturing method thereof |
| CN101543947A (en) * | 2009-04-25 | 2009-09-30 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing spring of derrick centralizer |
| CN101665864A (en) * | 2009-09-30 | 2010-03-10 | 姚凤臣 | Production method of high speed steel prehardening materials |
| CN106011433A (en) * | 2016-08-03 | 2016-10-12 | 苏州市虎丘区浒墅关弹簧厂 | Heat treatment process of high strength spring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111961820A (en) * | 2020-07-22 | 2020-11-20 | 金华浩翔汽配有限公司 | Method for reducing internal stress of product by using high-temperature oven |
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Application publication date: 20181019 |