CN103740917B - Steel Rod working method - Google Patents
Steel Rod working method Download PDFInfo
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- CN103740917B CN103740917B CN201310724422.9A CN201310724422A CN103740917B CN 103740917 B CN103740917 B CN 103740917B CN 201310724422 A CN201310724422 A CN 201310724422A CN 103740917 B CN103740917 B CN 103740917B
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Abstract
Steel Rod working method, comprising: modifier treatment processing pull rod; Through the processing pull rod of modifier treatment described in alignment; Through the processing pull rod of aligning described in jumping-up; Through the processing pull rod of jumping-up described in thermal treatment.Relative to traditional scheme, cannot realize being not more than 30mm(millimeter to diameter in enormous quantities) longer processing pull rod be processed as Steel Rod, especially alignment becomes a difficult problem, adopt the scheme described in the application, the specification of quality of GB/T20934-2007 " Steel Rod " can be reached, also solve an alignment difficult problem, for scale operation becomes a reality, the efficiency of visible this programme is higher, quality is more excellent simultaneously.
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, all generally 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 etc. the making of strong Steel Rod, traditional Production Flow Chart is being not more than 30mm(millimeter for diameter in enormous quantities) strong Steel Rod such as longer grade, just straightener shaping cannot be passed through, 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 if reluctantly rod straightening, also again to bend because of the recovery effect of quenched and tempered steel, also cannot reach the specification of quality of GB/T20934-2007 " Steel Rod " simultaneously.
Summary of the invention
In view of this, the Steel Rod working method providing a kind of efficiency higher.
A kind of Steel Rod working method, comprising: modifier treatment processing pull rod; Through the processing pull rod of modifier treatment described in alignment; Through the processing pull rod of aligning described in jumping-up; Through the processing pull rod of jumping-up described in thermal treatment.
According to of the present invention, the step of described modifier treatment processing pull rod comprises: be warming up to 820 ~ 850 degree to described processing pull rod shove charge, and soaking time is 100 ~ 120 minutes; To come out of the stove hardening.
According to of the present invention, also comprise after the step of hardening of coming out of the stove: melt down the described processing pull rod through hardening again and be heated to 580 ~ 650 degree, tempering insulation time is 160 ~ 200 minutes; Come out of the stove water-cooled, the described water-cooled time is 20 ~ 25 seconds.
According to of the present invention, described in described alignment through the step of the processing pull rod of modifier treatment be: by straightener, the described processing pull rod through modifier treatment is aligned.
According to of the present invention, comprise through the step of the processing pull rod of aligning described in described jumping-up: 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 of described processing pull rod is quickly moved to jumping-up in upsetting mould, and the time of described quick travel is: 1 ~ 30 second.
According to of the present invention, the step of the processing pull rod through jumping-up described in described thermal treatment comprises: to fire end heat induced tempering in another frequently stove of the processing pull rod through described spray quench, tempering Heating temperature is 600 ~ 650 degree.
According to of the present invention, the step of the processing pull rod through jumping-up described in described thermal treatment also comprises: in box-type furnace, be heated to 600 ~ 650 degree to the fire end of the described processing pull rod through temper, the end tempering of described processing pull rod 1.5 ~ 2 hours; Water-cooled of coming out of the stove 20 ~ 25 seconds.
The beneficial effect adopting the solution of the present invention to obtain comprises:
Relative to traditional scheme, cannot realize being not more than 30mm(millimeter to diameter in enormous quantities) longer processing pull rod be processed as Steel Rod, especially alignment becomes a difficult problem, adopt the scheme described in the application, the specification of quality of GB/T20934-2007 " Steel Rod " can be reached, also solve an alignment difficult problem, for scale operation becomes a reality, the efficiency of visible this programme is higher, quality is more excellent simultaneously.
Meanwhile, the waste heat that this programme makes full use of stove frequently carries out spray quench, saves the energy, reduces 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 the new feature of invention and technology contents, refer to the new detailed description of following Invention and accompanying drawing, but institute's accompanying drawing only provides reference and explanation, is not used for being limited the present invention.
By reference to the accompanying drawings 1 ~ 4, Steel Rod working method, comprising:
S10: modifier treatment processing pull rod.Particularly, modifier treatment quenches to firm pull bar to increase temperature the dual thermal treatment of tempering, its objective is and make 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, to processing pull rod (now, general adopted the is hot rolling bar) shove charge of packing of batch, according to the rank of processing request, furnace temperature is increased to 820 ~ 850 degree, shove charge soaking time is 100 ~ 120 minutes.
S13: hardening of coming out of the stove.Particularly, through after furnace high-temperature process, hardening of coming out of the stove, the processing pull rod being namely heated to certain temperature is under water suddenly makes it cool, and can increase hardness.
In other embodiments, step S13 also comprises:
S15: melt down heating again to the processing pull rod through hardening, Heating temperature is 580 ~ 650 degree, and melting down soaking time is 160 ~ 200 minutes.
S17: 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, namely straightener is applied to various axial workpiece and produces distortion in heat treatment process, and carries out alignment.
S50: jumping-up is through the processing pull rod of aligning.Jumping-up refers to and with pressure, blank height is reduced and operation that diameter (or lateral dimension) increases.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, Heating temperature is 1000 ~ 1500 degree.In the present embodiment, be that the end (namely needing one end of jumping-up) to processing pull rod is heated in frequency stove, 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 of processing pull rod is quickly moved 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 stove frequently to heat before this, and temperature is more than 1000 degree, and the waste heat making full use of stove frequently after jumping-up carries out spray quench to the upset end of processing pull rod, 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 heat-treated further, and processing obtains satisfactory high-quality Steel Rod.
Further, step S70 comprises:
S71: to fire end heat induced tempering in another frequently stove of the processing pull rod through described spray quench, tempering Heating temperature is 600 ~ 650 degree.Particularly, fire end heat induced tempering in another frequently stove of processing pull rod, can prevent the cracking ends of processing pull rod.
In other embodiments, step S70 also comprises:
S73: 600 ~ 650 degree are heated in box-type furnace to the fire end of the processing pull rod through temper, the end tempering of processing pull rod 1.5 ~ 2 hours.
S75: water-cooled of coming out of the stove 20 ~ 25 seconds.
Relative to traditional scheme, cannot realize being not more than 30mm(millimeter to diameter in enormous quantities) longer processing pull rod be processed as Steel Rod, especially alignment becomes a difficult problem, adopt the scheme described in the application, the specification of quality of GB/T20934-2007 " Steel Rod " can be reached, also solve an alignment difficult problem, for scale operation becomes a reality, the efficiency of visible this programme is higher, quality is more excellent simultaneously.
Meanwhile, the waste heat that this programme makes full use of stove frequently carries out spray quench, saves the energy, reduces cost.
In one embodiment, Steel Rod working method also comprises:
Detect, detected by mechanics and outward appearance, the Steel Rod machined is detected, makes its indices reach GB/T20934-2007 " Steel Rod " requirement.
The working method of the application is now described in conjunction with object lesson:
Modifier treatment: by processing pull rod (hot rolling bar) shove charge of packing of 10 tons heavy, long 6 meters, be warming up to 820 ~ 850 degree according to the levels necessitate of Steel Rod, be incubated 100 ~ 120 minutes, hardening of coming out of the stove.Shove charge is heated to 580 ~ 650 degree more subsequently, is incubated 180 minutes, water-cooled of coming out of the stove 20 ~ 25 seconds.
Alignment: by straightener the processing pull rod alignment of modulation treatment.
Jumping-up: by certain size and the one end entering the processing pull rod of alignment is heated to 1000 ~ 1500 degree in intermediate frequency furnace, to move to rapidly in hot upsetting mould jumping-up to requiring size, and utilize the waste heat of Medium frequency induction (820 ~ 850 degree) termination to be carried out local spray in special device to quench.
Thermal treatment: the processing pull rod through jumping-up is heated to 600 ~ 650 degree of induction temperings to prevent cracking at another frequency stove.To process the other end of processing pull rod, only above-mentioned steps need be repeated.Be finally 1 group every for processing pull rod 100, be unified in box-type furnace and be heated to 600 ~ 650 degree, by end localized tempering 1.5 ~ 2 hours, water-cooled of coming out of the stove 20 ~ 25 seconds, machined.
As known by the technical knowledge, the above embodiment can be realized by other the embodiment not departing from its spirit or essential feature, therefore therefore can not be interpreted as the restriction to the scope of the claims of the present invention.Therefore, above-mentioned disclosed specific embodiment, all just illustrating there are some distortion for the person of ordinary skill of the art, is not only have, the change within the scope of the present invention or in equivalency range all belong to protection scope of the present invention.
Claims (6)
1. a Steel Rod working method, is characterized in that, comprising:
Modifier treatment processing pull rod;
Through the processing pull rod of modifier treatment described in alignment;
Through the processing pull rod of aligning described in jumping-up;
Through the processing pull rod of jumping-up described in thermal treatment;
The step of described modifier treatment processing pull rod comprises: be warming up to 820 ~ 850 degree to described processing pull rod shove charge, and soaking time is 100 ~ 120 minutes; To come out of the stove hardening; Melt down the described processing pull rod through hardening again and be heated to 580 ~ 650 degree, tempering insulation time is 160 ~ 200 minutes; Come out of the stove water-cooled, the described water-cooled time is 20 ~ 25 seconds;
Described jumping-up also comprises through the step of the processing pull rod of aligning: 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.
2. Steel Rod working method according to claim 1, is characterized in that, described in described alignment through the step of the processing pull rod of modifier treatment is:
By straightener, the described processing pull rod through modifier treatment is aligned.
3. Steel Rod working method according to claim 2, is characterized in that, the temperature of described waste heat is: 820 ~ 850 degree.
4. Steel Rod working method according to claim 3, 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 of described processing pull rod is quickly moved to jumping-up in upsetting mould, and the time of described quick travel is: 1 ~ 30 second.
5. Steel Rod working method according to claim 4, is characterized in that, the step of the processing pull rod through jumping-up described in described thermal treatment comprises:
To upset end heat induced tempering in another frequently stove of the processing pull rod through described spray quench, tempering Heating temperature is 600 ~ 650 degree.
6. Steel Rod working method according to claim 5, is characterized in that, the step of the processing pull rod through jumping-up described in described thermal treatment also comprises:
600 ~ 650 degree are heated in box-type furnace to the fire end of the described processing pull rod through temper, the end tempering of described processing pull rod 1.5 ~ 2 hours;
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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| Publication Number | Publication Date |
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| CN103740917A CN103740917A (en) | 2014-04-23 |
| CN103740917B true CN103740917B (en) | 2015-08-19 |
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| 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 |
| CN107900609B (en) * | 2017-10-25 | 2019-05-24 | 吉利汽车研究院（宁波）有限公司 | Vehicular metal rod end weld processing method |
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| CN1267620C (en) * | 2002-07-26 | 2006-08-02 | 胜利油田孚瑞特石油装备有限责任公司 | 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 |
| CN103452491B (en) * | 2013-09-17 | 2015-04-22 | 刘岩 | Production process of drilling tubing and casing for oilfields |
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