CN106086345A - A kind of processing technique of piston rod - Google Patents
A kind of processing technique of piston rod Download PDFInfo
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- CN106086345A CN106086345A CN201610453859.7A CN201610453859A CN106086345A CN 106086345 A CN106086345 A CN 106086345A CN 201610453859 A CN201610453859 A CN 201610453859A CN 106086345 A CN106086345 A CN 106086345A
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The processing technique of a kind of piston rod, belongs to piston rod processing technique field, and this technique is to comprise the steps of: (1) selects blank, blank preliminary working is become cylinder, is then put in heating furnace by blank and preheat, be then incubated；(2) blank is once heated, be the most once incubated, then blank is carried out jumping-up；(3) blank is carried out post bake, then carry out secondary insulation, then blank is pulled out；(4) blank is carried out three heating, then carries out three insulations, then blank is carried out secondary jumping-up；(5) blank is carried out four heating, then carries out four insulations, then blank is carried out secondary pulling；(6) blank is carried out five heating, then carries out five insulations.The piston rod procedure of processing of the present invention is simple, and quality is good；The piston rod anti-wear performance of the present invention is good, it is not easy to abrasion；The piston rod inner of the present invention does not has internal stress.
Description
Technical field
The invention belongs to piston rod processing technique field, particularly relate to the processing technique of a kind of piston rod.
Background technology
Piston rod is the connection member of supporting piston acting, and major applications, in oil cylinder, cylinder moving execution unit, is
The moving component that one motion is frequent, technology requirement is high.At present, piston rod procedure of processing is loaded down with trivial details, poor quality；Piston rod is wear-resisting
Performance is general, and service life is the shortest；Piston rod inner remaining has internal stress, is easily caused piston rod cracking.
Summary of the invention
The technical problem to be solved is to provide the processing technique of a kind of piston rod.
For solving the problems referred to above, the processing technique of a kind of piston rod of the present invention, this technique is by following steps group
Become:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, in advance
Heating-up temperature is 650～720 DEG C, is then incubated, and holding temperature is 650～720 DEG C, and temperature retention time is 3～4 hours, adds
In thermal process, blank constantly to overturn, and prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1020～1060 DEG C, is the most once incubated, one
Secondary holding temperature is 1020～1060 DEG C, and one time temperature retention time is 2～3 hours, then blank is carried out jumping-up, and upset ratio is
2.3～2.8；
(3) blank carrying out post bake, post bake temperature is 920～980 DEG C, then carries out secondary insulation, secondary
Holding temperature is 920～980 DEG C, and secondary temperature retention time is 1～2 hour, is then pulled out by blank, forging ratio be 3.2～
3.8；
(4) blank carries out three heating, and three times heating-up temperature is 860～900 DEG C, then carries out three times and is incubated, three times
Holding temperature is 860～900 DEG C, and three times temperature retention time is 3～4 hours, then blank is carried out secondary jumping-up, and upset ratio is
3.1～3.5；
(5) blank carries out four heating, and four times heating-up temperature is 750～850 DEG C, then carries out four times and is incubated, four times
Holding temperature is 750～850 DEG C, and four times temperature retention time is 2～3 hours, then blank is carried out secondary pulling, and forging ratio is
2.6～3.2；
(6) blank carries out five heating, and five times heating-up temperature is 800～840 DEG C, then carries out five times and is incubated, five times
Holding temperature is 800～840 DEG C, and five times temperature retention time is 2～3 hours, then blank is cooled in stove 550～600 DEG C,
Finally come out of the stove air cooling to room temperature, elimination residualinternal stress.
Compared with prior art, the invention have the advantages that the piston rod procedure of processing of the present invention is simple, quality is good；
The piston rod anti-wear performance of the present invention is good, it is not easy to abrasion；The piston rod inner of the present invention does not has internal stress, it is not easy to cause living
Stopper rod ftractures.
Detailed description of the invention
Embodiment 1
A kind of processing technique of piston rod, this technique is to comprise the steps of:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, in advance
Heating-up temperature is 650 DEG C, is then incubated, and holding temperature is 650 DEG C, and temperature retention time is 3 hours, and in heating process, blank is wanted
Constantly upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1020 DEG C, is the most once incubated, is once incubated
Temperature is 1020 DEG C, and one time temperature retention time is 2 hours, then blank is carried out jumping-up, and upset ratio is 2.3；
(3) blank carrying out post bake, post bake temperature is 920 DEG C, then carries out secondary insulation, secondary insulation temperature
Degree is 920 DEG C, and secondary temperature retention time is 1 hour, is then pulled out by blank, and forging ratio is 3.2；
(4) blank carries out three heating, and three times heating-up temperature is 860 DEG C, then carries out three insulations, three insulation temperature
Degree is 860 DEG C, and three times temperature retention time is 3 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.1；
(5) blank carries out four heating, and four times heating-up temperature is 750 DEG C, then carries out four insulations, four insulation temperature
Degree is 750 DEG C, and four times temperature retention time is 2 hours, then blank is carried out secondary pulling, and forging ratio is 2.6；
(6) blank carries out five heating, and five times heating-up temperature is 800 DEG C, then carries out five insulations, five insulation temperature
Degree is 800 DEG C, and five times temperature retention time is 2 hours, then blank is cooled in stove 550 DEG C, air cooling of finally coming out of the stove to room temperature,
Eliminate residualinternal stress.
It is demonstrated experimentally that this parameter lower piston rod procedure of processing is simple, quality is good；Piston rod anti-wear performance is good, it is not easy to mill
Damage；Piston rod inner does not has internal stress, it is not easy to cause piston rod to ftracture.
Embodiment 2
A kind of processing technique of piston rod, this technique is to comprise the steps of:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, in advance
Heating-up temperature is 670 DEG C, is then incubated, and holding temperature is 670 DEG C, and temperature retention time is 3.2 hours, blank in heating process
Constantly to overturn, to prevent overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1020 DEG C, is the most once incubated, is once incubated
Temperature is 1020 DEG C, and one time temperature retention time is 2.3 hours, then blank is carried out jumping-up, and upset ratio is 2.6；
(3) blank carrying out post bake, post bake temperature is 935 DEG C, then carries out secondary insulation, secondary insulation temperature
Degree is 935 DEG C, and secondary temperature retention time is 1.3 hours, is then pulled out by blank, and forging ratio is 3.3；
(4) blank carries out three heating, and three times heating-up temperature is 870 DEG C, then carries out three insulations, three insulation temperature
Degree is 870 DEG C, and three times temperature retention time is 3.2 hours, then blank is carried out secondary jumping-up, and upset ratio is 32；
(5) blank carries out four heating, and four times heating-up temperature is 775 DEG C, then carries out four insulations, four insulation temperature
Degree is 775 DEG C, and four times temperature retention time is 2.2 hours, then blank is carried out secondary pulling, and forging ratio is 2.8；
(6) blank carries out five heating, and five times heating-up temperature is 810 DEG C, then carries out five insulations, five insulation temperature
Degree is 810 DEG C, and five times temperature retention time is 2.3 hours, then blank is cooled in stove 560 DEG C, and air cooling of finally coming out of the stove is to room
Temperature, eliminates residualinternal stress.
It is demonstrated experimentally that this parameter lower piston rod procedure of processing is simple, quality is preferable；Piston rod anti-wear performance is preferable, does not allows
Easy to wear；Piston rod inner does not has internal stress, it is not easy to cause piston rod to ftracture.
Embodiment 3
A kind of processing technique of piston rod, this technique is to comprise the steps of:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, in advance
Heating-up temperature is 685 DEG C, is then incubated, and holding temperature is 685 DEG C, and temperature retention time is 3.5 hours, blank in heating process
Constantly to overturn, to prevent overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1040 DEG C, is the most once incubated, is once incubated
Temperature is 1040 DEG C, and one time temperature retention time is 2.5 hours, then blank is carried out jumping-up, and upset ratio is 2.6；
(3) blank carrying out post bake, post bake temperature is 950 DEG C, then carries out secondary insulation, secondary insulation temperature
Degree is 950 DEG C, and secondary temperature retention time is 1.5 hours, is then pulled out by blank, and forging ratio is 3.5；
(4) blank carries out three heating, and three times heating-up temperature is 880 DEG C, then carries out three insulations, three insulation temperature
Degree is 880 DEG C, and three times temperature retention time is 3.5 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.3；
(5) blank carries out four heating, and four times heating-up temperature is 800 DEG C, then carries out four insulations, four insulation temperature
Degree is 800 DEG C, and four times temperature retention time is 2.5 hours, then blank is carried out secondary pulling, and forging ratio is 2.9；
(6) blank carries out five heating, and five times heating-up temperature is 820 DEG C, then carries out five insulations, five insulation temperature
Degree is 820 DEG C, and five times temperature retention time is 2.5 hours, then blank is cooled in stove 575 DEG C, and air cooling of finally coming out of the stove is to room
Temperature, eliminates residualinternal stress.
It is demonstrated experimentally that this parameter lower piston rod procedure of processing is simple, best in quality；Piston rod anti-wear performance is best, does not allows
Easy to wear；Piston rod inner does not has internal stress, it is not easy to cause piston rod to ftracture.
Therefore, the present embodiment is preferred embodiment.
Embodiment 4
A kind of processing technique of piston rod, this technique is to comprise the steps of:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, in advance
Heating-up temperature is 700 DEG C, is then incubated, and holding temperature is 700 DEG C, and temperature retention time is 3.8 hours, blank in heating process
Constantly to overturn, to prevent overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1050 DEG C, is the most once incubated, is once incubated
Temperature is 1050 DEG C, and one time temperature retention time is 2.5 hours, then blank is carried out jumping-up, and upset ratio is 2.7；
(3) blank carrying out post bake, post bake temperature is 970 DEG C, then carries out secondary insulation, secondary insulation temperature
Degree is 970 DEG C, and secondary temperature retention time is 1.9 hours, is then pulled out by blank, and forging ratio is 3.7；
(4) blank carries out three heating, and three times heating-up temperature is 890 DEG C, then carries out three insulations, three insulation temperature
Degree is 890 DEG C, and three times temperature retention time is 3.7 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.4；
(5) blank carries out four heating, and four times heating-up temperature is 825 DEG C, then carries out four insulations, four insulation temperature
Degree is 825 DEG C, and four times temperature retention time is 2.7 hours, then blank is carried out secondary pulling, and forging ratio is 2.9；
(6) blank carries out five heating, and five times heating-up temperature is 830 DEG C, then carries out five insulations, five insulation temperature
Degree is 830 DEG C, and five times temperature retention time is 2.8 hours, then blank is cooled in stove 575 DEG C, and air cooling of finally coming out of the stove is to room
Temperature, eliminates residualinternal stress.
It is demonstrated experimentally that this parameter lower piston rod procedure of processing is simple, quality is preferable；Piston rod anti-wear performance is preferable, does not allows
Easy to wear；Piston rod inner does not has internal stress, it is not easy to cause piston rod to ftracture.
Embodiment 5
A kind of processing technique of piston rod, this technique is to comprise the steps of:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, in advance
Heating-up temperature is 720 DEG C, is then incubated, and holding temperature is 720 DEG C, and temperature retention time is 4 hours, and in heating process, blank is wanted
Constantly upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1060 DEG C, is the most once incubated, is once incubated
Temperature is 1060 DEG C, and one time temperature retention time is 3 hours, then blank is carried out jumping-up, and upset ratio is 2.8；
(3) blank carrying out post bake, post bake temperature is 980 DEG C, then carries out secondary insulation, secondary insulation temperature
Degree is 980 DEG C, and secondary temperature retention time is 2 hours, is then pulled out by blank, and forging ratio is 3.8；
(4) blank carries out three heating, and three times heating-up temperature is 900 DEG C, then carries out three insulations, three insulation temperature
Degree is 900 DEG C, and three times temperature retention time is 4 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.5；
(5) blank carries out four heating, and four times heating-up temperature is 850 DEG C, then carries out four insulations, four insulation temperature
Degree is 850 DEG C, and four times temperature retention time is 3 hours, then blank is carried out secondary pulling, and forging ratio is 3.2；
(6) blank carries out five heating, and five times heating-up temperature is 840 DEG C, then carries out five insulations, five insulation temperature
Degree is 840 DEG C, and five times temperature retention time is 3 hours, then blank is cooled in stove 600 DEG C, air cooling of finally coming out of the stove to room temperature,
Eliminate residualinternal stress.
It is demonstrated experimentally that this parameter lower piston rod procedure of processing is simple, quality is good；Piston rod anti-wear performance is preferable, it is not easy to
Abrasion；Piston rod inner does not has internal stress, it is not easy to cause piston rod to ftracture.
Claims (6)
1. the processing technique of a piston rod, it is characterised in that: this technique is to comprise the steps of:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, preheat
Temperature is 650～720 DEG C, is then incubated, and holding temperature is 650～720 DEG C, and temperature retention time is 3～4 hours, heated
In journey, blank constantly to overturn, and prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1020～1060 DEG C, is the most once incubated, once protects
Temperature temperature be 1020～1060 DEG C, one time temperature retention time is 2～3 hours, then blank is carried out jumping-up, upset ratio be 2.3～
2.8；
(3) blank carrying out post bake, post bake temperature is 920～980 DEG C, then carries out secondary insulation, and secondary is incubated
Temperature is 920～980 DEG C, and secondary temperature retention time is 1～2 hour, is then pulled out by blank, and forging ratio is 3.2～3.8；
(4) blank carries out three heating, and three times heating-up temperature is 860～900 DEG C, then carries out three insulations, three insulations
Temperature is 860～900 DEG C, and three times temperature retention time is 3～4 hours, then blank is carried out secondary jumping-up, upset ratio be 3.1～
3.5；
(5) blank carries out four heating, and four times heating-up temperature is 750～850 DEG C, then carries out four insulations, four insulations
Temperature is 750～850 DEG C, and four times temperature retention time is 2～3 hours, then blank is carried out secondary pulling, forging ratio be 2.6～
3.2；
(6) blank carries out five heating, and five times heating-up temperature is 800～840 DEG C, then carries out five insulations, five insulations
Temperature is 800～840 DEG C, and five times temperature retention time is 2～3 hours, then blank is cooled in stove 550～600 DEG C, finally
Come out of the stove air cooling to room temperature, elimination residualinternal stress.
A kind of processing technique of piston rod, it is characterised in that: this technique is by following steps group
Become:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, preheat
Temperature is 650 DEG C, is then incubated, and holding temperature is 650 DEG C, and temperature retention time is 3 hours, and in heating process, blank is wanted constantly
Upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1020 DEG C, is the most once incubated, a holding temperature
Being 1020 DEG C, one time temperature retention time is 2 hours, then blank is carried out jumping-up, and upset ratio is 2.3；
(3) blank carrying out post bake, post bake temperature is 920 DEG C, then carries out secondary insulation, and secondary holding temperature is
920 DEG C, secondary temperature retention time is 1 hour, is then pulled out by blank, and forging ratio is 3.2；
(4) blank carries out three heating, and three times heating-up temperature is 860 DEG C, then carries out three insulations, and three times holding temperature is
860 DEG C, three times temperature retention time is 3 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.1；
(5) blank carries out four heating, and four times heating-up temperature is 750 DEG C, then carries out four insulations, and four times holding temperature is
750 DEG C, four times temperature retention time is 2 hours, then blank is carried out secondary pulling, and forging ratio is 2.6；
(6) blank carries out five heating, and five times heating-up temperature is 800 DEG C, then carries out five insulations, and five times holding temperature is
800 DEG C, five times temperature retention time is 2 hours, then blank is cooled in stove 550 DEG C, and air cooling of finally coming out of the stove, to room temperature, eliminates
Residualinternal stress.
A kind of processing technique of piston rod, it is characterised in that: this technique is by following steps group
Become:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, preheat
Temperature is 670 DEG C, is then incubated, and holding temperature is 670 DEG C, and temperature retention time is 3.2 hours, blank in heating process otherwise
Disconnected upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1020 DEG C, is the most once incubated, a holding temperature
Being 1020 DEG C, one time temperature retention time is 2.3 hours, then blank is carried out jumping-up, and upset ratio is 2.6；
(3) blank carrying out post bake, post bake temperature is 935 DEG C, then carries out secondary insulation, and secondary holding temperature is
935 DEG C, secondary temperature retention time is 1.3 hours, is then pulled out by blank, and forging ratio is 3.3；
(4) blank carries out three heating, and three times heating-up temperature is 870 DEG C, then carries out three insulations, and three times holding temperature is
870 DEG C, three times temperature retention time is 3.2 hours, then blank is carried out secondary jumping-up, and upset ratio is 32；
(5) blank carries out four heating, and four times heating-up temperature is 775 DEG C, then carries out four insulations, and four times holding temperature is
775 DEG C, four times temperature retention time is 2.2 hours, then blank is carried out secondary pulling, and forging ratio is 2.8；
(6) blank carries out five heating, and five times heating-up temperature is 810 DEG C, then carries out five insulations, and five times holding temperature is
810 DEG C, five times temperature retention time is 2.3 hours, then blank is cooled in stove 560 DEG C, and air cooling of finally coming out of the stove, to room temperature, disappears
Except residualinternal stress.
A kind of processing technique of piston rod, it is characterised in that: this technique is by following steps group
Become:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, preheat
Temperature is 685 DEG C, is then incubated, and holding temperature is 685 DEG C, and temperature retention time is 3.5 hours, blank in heating process otherwise
Disconnected upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1040 DEG C, is the most once incubated, a holding temperature
Being 1040 DEG C, one time temperature retention time is 2.5 hours, then blank is carried out jumping-up, and upset ratio is 2.6；
(3) blank carrying out post bake, post bake temperature is 950 DEG C, then carries out secondary insulation, and secondary holding temperature is
950 DEG C, secondary temperature retention time is 1.5 hours, is then pulled out by blank, and forging ratio is 3.5；
(4) blank carries out three heating, and three times heating-up temperature is 880 DEG C, then carries out three insulations, and three times holding temperature is
880 DEG C, three times temperature retention time is 3.5 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.3；
(5) blank carries out four heating, and four times heating-up temperature is 800 DEG C, then carries out four insulations, and four times holding temperature is
800 DEG C, four times temperature retention time is 2.5 hours, then blank is carried out secondary pulling, and forging ratio is 2.9；
(6) blank carries out five heating, and five times heating-up temperature is 820 DEG C, then carries out five insulations, and five times holding temperature is
820 DEG C, five times temperature retention time is 2.5 hours, then blank is cooled in stove 575 DEG C, and air cooling of finally coming out of the stove, to room temperature, disappears
Except residualinternal stress.
A kind of processing technique of piston rod, it is characterised in that: this technique is by following steps group
Become:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, preheat
Temperature is 700 DEG C, is then incubated, and holding temperature is 700 DEG C, and temperature retention time is 3.8 hours, blank in heating process otherwise
Disconnected upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1050 DEG C, is the most once incubated, a holding temperature
Being 1050 DEG C, one time temperature retention time is 2.5 hours, then blank is carried out jumping-up, and upset ratio is 2.7；
(3) blank carrying out post bake, post bake temperature is 970 DEG C, then carries out secondary insulation, and secondary holding temperature is
970 DEG C, secondary temperature retention time is 1.9 hours, is then pulled out by blank, and forging ratio is 3.7；
(4) blank carries out three heating, and three times heating-up temperature is 890 DEG C, then carries out three insulations, and three times holding temperature is
890 DEG C, three times temperature retention time is 3.7 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.4；
(5) blank carries out four heating, and four times heating-up temperature is 825 DEG C, then carries out four insulations, and four times holding temperature is
825 DEG C, four times temperature retention time is 2.7 hours, then blank is carried out secondary pulling, and forging ratio is 2.9；
(6) blank carries out five heating, and five times heating-up temperature is 830 DEG C, then carries out five insulations, and five times holding temperature is
830 DEG C, five times temperature retention time is 2.8 hours, then blank is cooled in stove 575 DEG C, and air cooling of finally coming out of the stove, to room temperature, disappears
Except residualinternal stress.
A kind of processing technique of piston rod, it is characterised in that: this technique is by following steps group
Become:
(1) select blank, blank preliminary working is become cylinder, then blank is put in heating furnace and preheat, preheat
Temperature is 720 DEG C, is then incubated, and holding temperature is 720 DEG C, and temperature retention time is 4 hours, and in heating process, blank is wanted constantly
Upset, prevents overheated and burning；
(2) once being heated by blank, one time heating-up temperature is 1060 DEG C, is the most once incubated, a holding temperature
Being 1060 DEG C, one time temperature retention time is 3 hours, then blank is carried out jumping-up, and upset ratio is 2.8；
(3) blank carrying out post bake, post bake temperature is 980 DEG C, then carries out secondary insulation, and secondary holding temperature is
980 DEG C, secondary temperature retention time is 2 hours, is then pulled out by blank, and forging ratio is 3.8；
(4) blank carries out three heating, and three times heating-up temperature is 900 DEG C, then carries out three insulations, and three times holding temperature is
900 DEG C, three times temperature retention time is 4 hours, then blank is carried out secondary jumping-up, and upset ratio is 3.5；
(5) blank carries out four heating, and four times heating-up temperature is 850 DEG C, then carries out four insulations, and four times holding temperature is
850 DEG C, four times temperature retention time is 3 hours, then blank is carried out secondary pulling, and forging ratio is 3.2；
(6) blank carries out five heating, and five times heating-up temperature is 840 DEG C, then carries out five insulations, and five times holding temperature is
840 DEG C, five times temperature retention time is 3 hours, then blank is cooled in stove 600 DEG C, and air cooling of finally coming out of the stove, to room temperature, eliminates
Residualinternal stress.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048675A (en) * | 2018-01-05 | 2018-05-18 | 瑞安市五星铜业有限公司 | High-precision brass band processing technology |
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