CN108486319A - A kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component - Google Patents
A kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component Download PDFInfo
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- CN108486319A CN108486319A CN201810363717.0A CN201810363717A CN108486319A CN 108486319 A CN108486319 A CN 108486319A CN 201810363717 A CN201810363717 A CN 201810363717A CN 108486319 A CN108486319 A CN 108486319A
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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
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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Abstract
The present invention's is a kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component,It is for for the stripper plate in precision stamping die,Solid plate,Support plate,Sweden import high-purity high-carbon chrome molybdenum bubbing steel ASSAB XW 4,Major alloy composition is the material of 1.55%C 12%Cr 6.4%W 0.8%Mo 0.8%V,There is provided a kind of high-carbon chrome molybdenum bubbing steel precision component accurate heat treatment quenching process,It is according to different thickness of workpiece,Different hardness requirements,Take accurately heat treatment temperature and time technological parameter,Reliably to ensure its quenching degree,Accurately control material inside organization variation,The precipitation form of carbide,Grain growth,To reduce retained austenite,Superfine carbide is precipitated and keeps crystal grain refinement,Even tissue,Reach accurate part hardness and creep does not occur in use,It remains dimensionally-stable,High-wearing feature.
Description
Technical field
The invention belongs to high-carbon chrome molybdenum bubbing steel material heat treatment fields, and in particular to a kind of import high-carbon chrome molybdenum bubbing steel
Precision heat treatment quenching technical.
Background technology
With the upgrading of China's manufacturing industry, requirement of some precision equipments to parts is more and more harsher, and home made materials exists
Certain aspect of performance cannot meet its requirement, have to using related advanced imported material；ASSAB XW-4 are Sweden's trade mark, are
A kind of ledeburite high-carbon chrome molybdenum bubbing steel of high cleanliness, major alloy composition are 1.55%C 12%Cr 6.4%W 0.8%Mo
0.8%V is similar to U.S. AISI D2, Chinese Cr12Mo1v1, and degree of purity height, crystal grain refinement even tissue commonly use hardness
HRC55-HRC62 has the good heat treatment dimensional stability of high-wearing feature high compressive strength high corrosion-resistant after heat treatment
Light deformation cold work die steel hardness high-wearing feature is good, can bear larger shock loading, is usually used in manufacturing that section is big, shape is multiple
The cold work die steel that the miscellaneous, power that experiences a shock is big, requires wearability high, such as silicon steel sheet punch die, cold cut scissors, edger are used for five
Golden stamping die, stretching die, stainless steel substrates blanking die, punch die edge of a knife part；
High-carbon chrome molybdenum bubbing steel material thermal conductivity is poor, and thickness of workpiece, alloy composition are also affected to heat treatment process, lead to heat
Complex treatment process, is such as heat-treated improper not only difficult its excellent performance of performance, and quality is also difficult to control, is easy batch scrap, is
This, the present inventor has declared a kind of heat treatment quenching process patent of acid-resistant stainless steel precision component（Application number
2017112188373）, achieve preferable effect；In the lead frame mold of production semiconductor chip packaging, demoulding
The precision components such as plate, solid plate, support plate use ASSAB XW-4 materials, not only require that hardness is high, wearability is good, impact ruler
Very little stabilization, long lifespan, reliability are high, and also have accurately hardness requirement to part；And the thickness of part is different, hardness is again
Refinement is accurate, adopts general treatment process, and according to thickness of workpiece empirical equation t=α К Н, estimate the guarantor in heat treatment process
The warm time is not only difficult to accurately, reliable control its quenching hardness, it is also difficult to reliably ensure its quenching degree and accurately control
Material internal crystalline phase tissue change, retained austenite are caused part to generate creep during the work time by thermal instability, difficult
To reach requirement；This just needs, according to different thickness of workpiece, different hardness requirements, to take accurately heat treatment temperature
With time technological parameter, reliably to ensure its quenching degree, accurately control material inside organization variation, carbide precipitation shape
State, grain growth reach accurate to reduce retained austenite, superfine carbide is precipitated and keep crystal grain refinement, even tissue
Part hardness and creep does not occur in use, remain dimensionally-stable, high-wearing feature.
Invention content
The present invention is mainly the technical problem solved present in the prior art, is for for the demoulding in precision stamping die
Plate, solid plate, support plate, Sweden import high-purity high-carbon chrome molybdenum bubbing steel ASSAB XW-4, major alloy composition are 1.55%C
The material of 12%Cr 6.4%W 0.8%Mo 0.8%V provides a kind of high-carbon chrome molybdenum bubbing steel precision component accurate heat treatment quenching
Skill is to take accurately heat treatment temperature and time technological parameter according to different thickness of workpiece, different hardness requirements, with
Reliably ensure its quenching degree, accurately control material inside organization variation, the precipitation form of carbide, grain growth, to reduce
Retained austenite is precipitated superfine carbide and keeps crystal grain refinement, even tissue, reaches accurate part hardness and is using
Creep does not occur in the process, remains dimensionally-stable, high-wearing feature.
1, the accurate heat treatment quenching process of a kind of high-carbon chrome molybdenum bubbing steel precision component, which is characterized in that mainly pass through
Following step and technical solution are addressed：（1）Workpiece of the thickness difference less than 5mm is put into glowing furnace and is preheated at twice,
For the first time with the heating speed less than 75 DEG C/h to 100 DEG C, second with the heating speed less than 115 DEG C/h to 150
℃；（2）A point two level is heated to 1020 DEG C of hardening heat and keeps the temperature in glowing furnace；（3）Workpiece is come out of the stove and is placed on holder, is opened
Air blower, workpiece is air-cooled to 50-70 DEG C；（4）Workpiece is entered to T DEG C of heat preservation tempering of tempering furnace in two times, is come out of the stove air-cooled；（Attached drawing
1）.
2, the accurate heat treatment quenching process of a kind of high-carbon chrome molybdenum bubbing steel precision component, it is described to divide two level in glowing furnace
It is heated to 1020 DEG C of hardening heat and keeps the temperature, which is characterized in that continue to be heated to 850 after workpiece preheating0C simultaneously keeps the temperature t1（Table 1）,
Continue to be heated to hardening heat 10200C simultaneously keeps the temperature t2（Table 1）;
1 t1 t2 t3 t2 of table are the different heating soaking time of the workpiece of different-thickness
| Thickness mm | ≦5 | 6–10 | 11–15 | 16–20 | 21–25 | 26–30 | 31–35 | 36–40 |
| t1 min | 15 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
| t2 min | 10 | 15 | 22 | 30 | 37 | 45 | 52 | 60 |
3, the accurate heat treatment quenching process of a kind of high-carbon chrome molybdenum bubbing steel precision component, it is described to enter back workpiece at twice
The heat preservation tempering of T DEG C of stove, comes out of the stove air-cooled, which is characterized in that when workpiece it is air-cooled to 50 DEG C -70 DEG C when immediately enter to be tempered stove heat
To T DEG C（Table 2）It is tempered and keeps the temperature t4（Table 3）, natural air cooling of coming out of the stove；Enter for the second time immediately when workpiece is air-cooled to 50 DEG C -70 DEG C
Tempering furnace is heated to T DEG C（Table 2）It is tempered and keeps the temperature t4（Table 3）, natural air cooling of coming out of the stove is to room temperature；
2 T of table is the different temperatures of the workpiece of different hard requirement degree
| Hardness requirement HRC | 52 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 |
| Temperature T0C | 550 | 550 | 525 | 525 | 525 | 420 | 280 | 250 | 230 | 200 |
3 t4 of table is the different tempering insulation times of the workpiece of different-thickness
| Thickness mm | ≦5 | 6–10 | 11–15 | 16–20 | 21–25 | 26–30 | 31–35 | 36–40 |
| t3 t4 min | 90 | 90 | 120 | 120 | 120 | 120 | 120 | 150 |
A kind of advantageous effect of the accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component of the present invention is：In heat
The precision component that different hardness requires in processing procedure uses different temperatures, it is made to obtain precise stiffness, and hardness is public
Difference reaches HRC1；The workpiece of different-thickness uses different heat treatment soaking times, accurately controls material internal crystal grain, tissue
Variation reduces retained austenite, superfine carbide is precipitated and keeps crystal grain refinement, even tissue, reaches part and accurately set
It counts hardness and reliably ensures its quenching degree, to ensure that creep does not occur during use, keep impact dimensionally stable, high abrasion
Property；The present invention is easy to operate highly practical, has higher engineering application value, and putting goods on the market, it is significantly social to generate
Benefit and economic benefit.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, attached drawing 1 is the one of the present invention
The kind accurate heat treatment quenching process procedure Procedure of high-carbon chrome molybdenum bubbing steel precision component, ordinate indicate heat treatment temperature parameter, T
For the temperature for the part that different hardness requires；Abscissa indicates heat treatment time parameter, and wherein t1, t2, t3, t4 is not
The different soaking times of stack pile part.
Specific implementation mode
1 pair of the preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention
It can be easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
1 thickness of embodiment is less than the high-carbon chrome molybdenum bubbing steel template of 5mm, hardness requirement HRC52
（1）A batch is put into less than the workpiece of 5mm thickness in glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
（2）Workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 15min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
10min；
（3）Workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
（4）When workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 5500C is tempered and keeps the temperature 90min, nature of coming out of the stove
It is air-cooled；
（5）When workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 5500C is tempered and keeps the temperature 90min, goes out
Stove natural air cooling；
（6）Workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 2 thickness of embodiment is 6-10mm is HRC54
（1）The workpiece of a collection of 6-10mm thickness is put into glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
（2）Workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 20min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
15min；
（3）Workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
（4）When workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 5500C is tempered and keeps the temperature 90min, nature of coming out of the stove
It is air-cooled；
（5）When workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 5500C is tempered and keeps the temperature 90min, goes out
Stove natural air cooling is to room temperature；
（6）Workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 3 thickness of embodiment is 11-15mm is HRC55
1, the workpiece of a collection of 11-15mm thickness is put into glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
2, workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 30min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
22min；
3, workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
4, when workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 5250C is tempered and keeps the temperature 120min, nature of coming out of the stove
It is air-cooled；
5, when workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 5250C is tempered and keeps the temperature 120min, goes out
Stove natural air cooling is to room temperature；
6, workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 4 thickness of embodiment is 16-20mm is HRC57
1, the workpiece of a collection of 16-20mm thickness is put into glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
2, workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 40min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
30min；
3, workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
4, when workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 5250C is tempered and keeps the temperature 120min, nature of coming out of the stove
It is air-cooled；
5, when workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 5250C is tempered and keeps the temperature 120min, goes out
Stove natural air cooling is to room temperature；
6, workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 5 thickness of embodiment is 21-25mm is HRC59
1, the workpiece of a collection of 21-25mm thickness is put into glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
2, workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 50min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
37min；
3, workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
4, when workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 2800C is tempered and keeps the temperature 120min, nature of coming out of the stove
It is air-cooled；
5, when workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 2800C is tempered and keeps the temperature 120min, goes out
Stove natural air cooling is to room temperature；
6, workpiece hardness is checked with hardometer, sampling splits workpiece and polishes section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 6 thickness of embodiment is 26-30mm is HRC60
1, the workpiece of 26-30mm thickness is put into glowing furnace and is preheated at twice, for the first time with the heating less than 75 DEG C/h
Speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
2, workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 60min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
45min；
3, workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
4, when workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 2500C is tempered and keeps the temperature 120min, nature of coming out of the stove
It is air-cooled；
5, when workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 2500C is tempered and keeps the temperature 120min, goes out
Stove natural air cooling is to room temperature；
6, workpiece hardness is checked with hardometer, sampling splits workpiece and polishes section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 7 thickness of embodiment is 31-35mm is HRC61
1, the workpiece of a collection of 31-35mm thickness is put into glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
2, workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 70min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
52min；
3, workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
4, when workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 2300C is tempered and keeps the temperature 120min, nature of coming out of the stove
It is air-cooled；
5, when workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 23000C is tempered and keeps the temperature 120min,
Natural air cooling come out of the stove to room temperature；
6, workpiece hardness is checked with hardometer, sampling splits workpiece and polishes section, with microexamination internal crystalline phase tissue.
The high-carbon chrome molybdenum bubbing steel template hardness requirement that 8 thickness of embodiment is 36-40mm is HRC62
1, the workpiece of a collection of 36-40mm thickness is put into glowing furnace and is preheated at twice, for the first time with less than 75 DEG C/h
Heating speed is to 100 DEG C, and second with the heating speed less than 115 DEG C/h to 150 DEG C；
2, workpiece is heated to 850 in glowing furnace0C simultaneously keeps the temperature 80min, is further continued for being heated to hardening heat 10200C is simultaneously kept the temperature
60min；
3, workpiece is come out of the stove and is placed on holder, air blower is opened, by workpiece air-blast quenching；
4, when workpiece is air-cooled to 500C-700Enter tempering furnace when C immediately and is heated to 2000C is tempered and keeps the temperature 150min, nature of coming out of the stove
It is air-cooled；
5, when workpiece is air-cooled to 500C-700Enter tempering furnace when C for the second time immediately and is heated to 2000C is tempered and keeps the temperature 150min, goes out
Stove natural air cooling is to room temperature；
7, workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with microexamination internal crystalline phase tissue.
A kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component of the present invention is added using classification
Heat keeps material internal/external heating more uniform, and the different temperatures of different hardness requirements obtain accurate hardness, hardness
Tolerance reaches HRC1；Using double tempering, and the different tempering insulation times of different thickness, accurately control material internal crystalline substance
Grain, tissue change reduce retained austenite, superfine carbide is precipitated and keeps crystal grain refinement, even tissue, reach part essence
True design hardness and reliably ensure its quenching degree, to ensure that creep does not occur during use, remains dimensionally-stable, is high resistance to
Mill property.The present invention it is simple and practicable, have higher engineering application value, put goods on the market will generate significantly social benefit and
Economic benefit.The foregoing is intended to be a preferred embodiment of the present invention.
It is not limited to this, it is any to be subject to according to the technical scheme of the invention and its inventive conception without creative work
With replacing or changing, should be covered by the protection scope of the present invention, therefore, protection scope of the present invention should be wanted with right
It asks subject to protection domain defined by book.
Claims (2)
1. a kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component, material is Sweden's import high-purity high carbon chromium
Molybdenum bubbing steel ASSAB XW-4, continue to be heated to during the processing step of hardening heat after preheat, take in glowing furnace
Point two level is heated to hardening heat and keeps the temperature（Attached drawing 1）, which is characterized in that continue to be heated to 850 DEG C and keep the temperature after workpiece preheating
t1（Table 1）, it is heated to 1040 DEG C of hardening heat and keeps the temperature t2（Table 1）；
1 t1 t2 of table are the different soaking times of the workpiece of different-thickness
。
2. a kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component, after quenching is air-cooled, at twice by workpiece
Enter tempering furnace heat preservation tempering, comes out of the stove air-cooled（Attached drawing 1）, which is characterized in that when workpiece it is air-cooled to 50 DEG C -70 DEG C when enter back immediately
Stove is heated to T DEG C of temperature（Table 2）And keep the temperature t3（Table 3）, natural air cooling of coming out of the stove；When workpiece is air-cooled to 50 DEG C -70 DEG C
Enter tempering furnace for the second time immediately and is heated to T DEG C of temperature（Table 2）And keep the temperature t4（Table 3）, natural air cooling of coming out of the stove is to room temperature；
2 T of table is the different temperatures for the workpiece that different hardness requires
3 t3 t4 of table are the different soaking times of the workpiece of different-thickness
。
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| CN201810363717.0A CN108486319A (en) | 2018-04-22 | 2018-04-22 | A kind of accurate heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318863A (en) * | 2020-03-05 | 2020-06-23 | 湖北隐冠轴业有限公司 | Method for processing hollow rotating shaft of driving motor |
| CN114231701A (en) * | 2021-12-10 | 2022-03-25 | 吉林省齐智科技有限公司 | Non-standard hardness heat treatment method for XW-42 die steel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815521A (en) * | 2017-11-28 | 2018-03-20 | 湖北工程职业学院 | A kind of heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component |
-
2018
- 2018-04-22 CN CN201810363717.0A patent/CN108486319A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815521A (en) * | 2017-11-28 | 2018-03-20 | 湖北工程职业学院 | A kind of heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318863A (en) * | 2020-03-05 | 2020-06-23 | 湖北隐冠轴业有限公司 | Method for processing hollow rotating shaft of driving motor |
| CN114231701A (en) * | 2021-12-10 | 2022-03-25 | 吉林省齐智科技有限公司 | Non-standard hardness heat treatment method for XW-42 die steel |
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Application publication date: 20180904 |