CN103740917A - Steel tie rod processing method - Google Patents
Steel tie rod processing method Download PDFInfo
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- CN103740917A CN103740917A CN201310724422.9A CN201310724422A CN103740917A CN 103740917 A CN103740917 A CN 103740917A CN 201310724422 A CN201310724422 A CN 201310724422A CN 103740917 A CN103740917 A CN 103740917A
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Abstract
The invention provides a steel tie rod processing method. The steel tie rod processing method comprises the steps of performing tempering on a processed tie rod, straightening the processed tie rod which is subjected to tempering previously, upsetting the straightened processed tie rod, and performing heat treatment on the upset processed tie rod. Compared with the traditional scheme in which a large batch of long processed tie rods having the diameter not greater than 30mm cannot be processed into steel tie rods, and in particular, straightening is a big problem, the steel tie rod processing method adopting the scheme has the advantages that the processed tie rods are capable of meeting the quality requirements of Steel Tie Rod GB/T20934-2007, and simultaneously, the problem of straightening is also solved; the large-scale production is realized, and obviously, the steel tie rod processing method is higher in efficiency and better in quality.
Description
Technical field
The present invention relates to steel working method, particularly relate to a kind of Steel Rod working method.
Background technology
At present, making etc. strong Steel Rod is all generally to adopt first by the conventional process scheme of the steps such as body of rod two ends induction heating, jumping-up, threading, impeller blasting, rotproofing, traditional Production Flow Chart is being not more than 30mm(millimeter for diameter in enormous quantities) the strong Steel Rod such as long, just cannot pass through straightener shaping, even if adopt traditional three to press Nogata method, but the difficulty of the method is very large, and efficiency is low.In addition, even reluctantly rod straightening, also can, because the recovery effect of quenched and tempered steel is again crooked, also cannot reach the specification of quality of GB/T20934-2007 < < Steel Rod > > simultaneously.
Summary of the invention
In view of this, provide the Steel Rod working method that a kind of efficiency is higher.
A Steel Rod working method, comprising: modifier treatment processing pull rod; The processing pull rod of process modifier treatment described in alignment; Processing pull rod through aligning described in jumping-up; The processing pull rod of process jumping-up described in thermal treatment.
According to of the present invention, the step of described modifier treatment processing pull rod comprises: described processing pull rod shove charge is warming up to 820～850 degree, and soaking time is 100～120 minutes; The hardening of coming out of the stove.
According to of the present invention, after the step of the hardening of coming out of the stove, also comprise: the described processing pull rod through hardening is melted down and is heated to 580～650 degree, and tempering insulation time is 160～200 minutes; The water-cooled of coming out of the stove, the described water-cooled time is 20～25 seconds.
According to of the present invention, the step through the processing pull rod of modifier treatment described in described alignment is: by straightener, the described processing pull rod that passes through modifier treatment is aligned.
According to of the present invention, the step through the processing pull rod of aligning described in described jumping-up comprises: the end of the described processing pull rod through alignment is heated in frequency stove, and described Heating temperature is 1000～1500 degree; The fire end of described processing pull rod is moved to jumping-up in upsetting mould; And utilize the waste heat in described frequency stove to carry out spray quench to the upset end of described processing pull rod.
According to of the present invention, the temperature of described waste heat is: 820～850 degree.
According to of the present invention, the step that the described fire end described processing pull rod moves to jumping-up in upsetting mould is: the fire end rapid moving of described processing pull rod, to jumping-up in upsetting mould, the time of described quick travel is: 1～30 second.
According to of the present invention, the step through the processing pull rod of jumping-up described in described thermal treatment comprises: to the fire end of the processing pull rod through described spray quench, in another heat induced tempering in stove frequently, tempering Heating temperature is 600～650 degree.
According to of the present invention, the step through the processing pull rod of jumping-up described in described thermal treatment also comprises: the fire end of the described processing pull rod through temper is heated to 600～650 degree, the end tempering of described processing pull rod 1.5～2 hours in box-type furnace; The water-cooled of coming out of the stove 20～25 seconds.
The beneficial effect that adopts the solution of the present invention to obtain comprises:
With respect to traditional scheme, cannot realize diameter in enormous quantities is not more than to 30mm(millimeter) longer processing pull rod be processed as Steel Rod, especially alignment becomes a difficult problem, scheme described in employing the application, can reach the specification of quality of GB/T20934-2007 < < Steel Rod > >, also solved an alignment difficult problem simultaneously, for scale operation becomes a reality, the efficiency of visible this programme is higher, quality is more excellent.
Meanwhile, this programme makes full use of the waste heat of stove frequently and carries out spray quench, has saved the energy, has reduced cost.
Accompanying drawing explanation
Fig. 1 is the schema of Steel Rod working method;
Fig. 2 is the schema of Fig. 1 step S10;
Fig. 3 is the schema of Fig. 1 step S50;
Fig. 4 is the schema of Fig. 1 step S70.
Embodiment
For further understanding invention new feature and technology contents, refer to new detailed description and the accompanying drawing of following relevant invention, yet institute's accompanying drawing only provides reference and explanation, is not used for the present invention to be limited.
By reference to the accompanying drawings 1～4, Steel Rod working method, comprising:
S10: modifier treatment processing pull rod.Particularly, modifier treatment is that firm pull bar is quenched and increases temperature the dual thermal treatment of tempering, its objective is and makes workpiece have good comprehensive mechanical performance.
Further, step S10 comprises:
S11: to processing pull rod shove charge, furnace temperature is 820～850 degree, and shove charge soaking time is 100～120 minutes.Particularly, processing pull rod (now, general adopted is hot rolling bar) the packing shove charge in batches, according to the rank of processing request, is increased to 820～850 degree furnace temperature, and shove charge soaking time is 100～120 minutes.
S13: the hardening of coming out of the stove.Particularly, after processing at furnace high-temperature, the hardening of coming out of the stove, the processing pull rod that is heated to certain temperature is soaked in water and is made it cooling suddenly, can increase hardness.
In other embodiments, step S13 also comprises:
S15: the processing pull rod through hardening is melted down to heating again, and Heating temperature is 580～650 degree, and melting down soaking time is 160～200 minutes.
S17: the water-cooled of coming out of the stove; The water-cooled time is 20～25 seconds.
S30: alignment is through the processing pull rod of modifier treatment.In the present embodiment, by straightener, the processing pull rod through modifier treatment is aligned, straightener is applied to various axial workpieces and in heat treatment process, produces distortion, and carries out alignment.
S50: jumping-up is through the processing pull rod of aligning.Jumping-up refers to pressure and blank height is reduced and the operation of diameter (or lateral dimension) increase.In the present embodiment, processing pull rod carries out jumping-up according to the size of setting in upsetting mould.
Further, step S50 comprises:
S51: the end of the processing pull rod through alignment is heated in frequency stove, and Heating temperature is 1000～1500 degree.In the present embodiment, be that heat in frequency stove the end (one end that needs jumping-up) to processing pull rod, the scope of Heating temperature is at 1000～1500 degree.
S53: the fire end of processing pull rod is moved to jumping-up in upsetting mould.In the present embodiment, the fire end rapid moving of processing pull rod, to jumping-up in upsetting mould, the time of quick travel is: 1～30 second.
S55: and utilize the waste heat in frequency stove to carry out spray quench to the upset end of processing pull rod.In the present embodiment, because utilize before this stove frequently to heat, and temperature is more than 1000 degree, makes full use of the waste heat of stove frequently the upset end of processing pull rod is carried out to spray quench after jumping-up, can reach the object of saving the energy.In other embodiments, the temperature of waste heat is: 820～850 degree.
S70: thermal treatment is through the processing pull rod of jumping-up.Processing pull rod through jumping-up is further heat-treated, and processing obtains satisfactory high-quality Steel Rod.
Further, step S70 comprises:
S71: to the heat induced tempering in another frequency stove of the fire end of the processing pull rod through described spray quench, tempering Heating temperature is 600～650 degree.Particularly, the heat induced tempering in another frequency stove of the fire end of processing pull rod, can prevent that the end of processing pull rod from ftractureing.
In other embodiments, step S70 also comprises:
S73: the fire end of the processing pull rod through temper is heated to 600～650 degree, the end tempering of processing pull rod 1.5～2 hours in box-type furnace.
S75: the water-cooled of coming out of the stove 20～25 seconds.
With respect to traditional scheme, cannot realize diameter in enormous quantities is not more than to 30mm(millimeter) longer processing pull rod be processed as Steel Rod, especially alignment becomes a difficult problem, scheme described in employing the application, can reach the specification of quality of GB/T20934-2007 < < Steel Rod > >, also solved an alignment difficult problem simultaneously, for scale operation becomes a reality, the efficiency of visible this programme is higher, quality is more excellent.
Meanwhile, this programme makes full use of the waste heat of stove frequently and carries out spray quench, has saved the energy, has reduced cost.
In one embodiment, Steel Rod working method also comprises:
Detect, by mechanics and outward appearance, detect, the Steel Rod machining is detected, make its indices reach GB/T20934-2007 < < Steel Rod > > requirement.
Now in conjunction with object lesson, describe the application's working method:
Modifier treatment: processing pull rod (hot rolling bar) the packing shove charge by 10 tons heavy, long 6 meters, according to the rank of Steel Rod, require to be warming up to 820～850 degree, be incubated 100～120 minutes, the hardening of coming out of the stove.Shove charge is heated to 580～650 degree more subsequently, is incubated 180 minutes, the water-cooled of coming out of the stove 20～25 seconds.
Alignment: by straightener the processing pull rod alignment of modulation treatment.
Jumping-up: certain size and one end of entering the processing pull rod of alignment are heated to 1000～1500 degree in intermediate frequency furnace, move to rapidly in hot upsetting mould jumping-up to requiring size, and utilize the waste heat (820～850 degree) of Medium frequency induction termination to be carried out to part in special device to spray and quench.
Thermal treatment: the processing pull rod through jumping-up is heated to 600～650 degree induction temperings to prevent cracking at another frequency stove.If will process the other end of processing pull rod, only need to repeat above-mentioned steps.Every 100 of processing pull rod, be finally 1 group, be unified in box-type furnace and be heated to 600～650 degree, by end localized tempering 1.5～2 hours, the water-cooled of coming out of the stove 20～25 seconds, machined.
As known by the technical knowledge, the above embodiment can realize by other the embodiment that does not depart from its spirit or essential feature, therefore can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Therefore, above-mentioned disclosed specific embodiment, for the person of ordinary skill of the art, all just illustrates, and can also have some distortion, is not only to have, the change within the scope of the present invention or in equivalency range all belong to protection scope of the present invention.
Claims (9)
1. a Steel Rod working method, is characterized in that, comprising:
Modifier treatment processing pull rod;
The processing pull rod of process modifier treatment described in alignment;
Processing pull rod through aligning described in jumping-up;
The processing pull rod of process jumping-up described in thermal treatment.
2. Steel Rod working method according to claim 1, is characterized in that, the step of described modifier treatment processing pull rod comprises:
Described processing pull rod shove charge is warming up to 820～850 degree, and soaking time is 100～120 minutes;
The hardening of coming out of the stove.
3. Steel Rod working method according to claim 2, is characterized in that, described in come out of the stove after the step of hardening and also comprise:
The described processing pull rod through hardening is melted down and is heated to 580～650 degree, and tempering insulation time is 160～200 minutes;
The water-cooled of coming out of the stove, the described water-cooled time is 20～25 seconds.
4. Steel Rod working method according to claim 1, is characterized in that, the step through the processing pull rod of modifier treatment described in described alignment is:
By straightener, the described processing pull rod through modifier treatment is aligned.
5. Steel Rod working method according to claim 1, is characterized in that, the step of the processing pull rod of described jumping-up process aligning comprises:
The end of the described processing pull rod through alignment is heated in frequency stove, and described Heating temperature is 1000～1500 degree;
The fire end of described processing pull rod is moved to jumping-up in upsetting mould;
And utilize the waste heat in described frequency stove to carry out spray quench to the upset end of described processing pull rod.
6. Steel Rod working method according to claim 5, is characterized in that, the temperature of described waste heat is: 820～850 degree.
7. Steel Rod working method according to claim 6, is characterized in that, the step that the described fire end described processing pull rod moves to jumping-up in upsetting mould is:
The fire end rapid moving of described processing pull rod, to jumping-up in upsetting mould, the time of described quick travel is: 1～30 second.
8. Steel Rod working method according to claim 7, is characterized in that, the step through the processing pull rod of jumping-up described in described thermal treatment comprises:
To the heat induced tempering in another frequency stove of the fire end of the processing pull rod through described spray quench, tempering Heating temperature is 600～650 degree.
9. Steel Rod working method according to claim 8, is characterized in that, the step through the processing pull rod of jumping-up described in described thermal treatment also comprises:
The fire end of the described processing pull rod through temper is heated to 600～650 degree, the end tempering of described processing pull rod 1.5～2 hours in box-type furnace;
The water-cooled of coming out of the stove 20～25 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724422.9A CN103740917B (en) | 2013-12-24 | 2013-12-24 | Steel Rod working method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724422.9A CN103740917B (en) | 2013-12-24 | 2013-12-24 | Steel Rod working method |
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| CN103740917A true CN103740917A (en) | 2014-04-23 |
| CN103740917B CN103740917B (en) | 2015-08-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493427A (en) * | 2014-10-29 | 2015-04-08 | 苏州市金德誉精密机械有限公司 | Pull rod machining process |
| CN107900609A (en) * | 2017-10-25 | 2018-04-13 | 吉利汽车研究院（宁波）有限公司 | Vehicular metal rod end weld processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470735A (en) * | 2002-07-26 | 2004-01-28 | 胜利石油管理局工程机械总厂 | Sucker polish rod manufacturing process |
| CN102699629A (en) * | 2012-05-29 | 2012-10-03 | 吕少华 | Production method and remanufacturing method for hollow sucker rods |
| CN103452491A (en) * | 2013-09-17 | 2013-12-18 | 刘岩 | Production process of drilling tubing and casing for oilfields |
-
2013
- 2013-12-24 CN CN201310724422.9A patent/CN103740917B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470735A (en) * | 2002-07-26 | 2004-01-28 | 胜利石油管理局工程机械总厂 | Sucker polish rod manufacturing process |
| CN102699629A (en) * | 2012-05-29 | 2012-10-03 | 吕少华 | Production method and remanufacturing method for hollow sucker rods |
| CN103452491A (en) * | 2013-09-17 | 2013-12-18 | 刘岩 | Production process of drilling tubing and casing for oilfields |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493427A (en) * | 2014-10-29 | 2015-04-08 | 苏州市金德誉精密机械有限公司 | Pull rod machining process |
| CN107900609A (en) * | 2017-10-25 | 2018-04-13 | 吉利汽车研究院（宁波）有限公司 | Vehicular metal rod end weld processing method |
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| Publication number | Publication date |
|---|---|
| CN103740917B (en) | 2015-08-19 |
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