CN107964578A - A kind of automobile die steel processing technology - Google Patents
A kind of automobile die steel processing technology Download PDFInfo
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- CN107964578A CN107964578A CN201610910022.0A CN201610910022A CN107964578A CN 107964578 A CN107964578 A CN 107964578A CN 201610910022 A CN201610910022 A CN 201610910022A CN 107964578 A CN107964578 A CN 107964578A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- 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
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of automobile die steel processing technology, material 3Cr2W8, it is characterised in that the process comprises the following steps：（1）Forge technique；（2）Annealing process；（3）Roughing；（4）It is quenched；（5）Half smart car；（6）High-temperature process；（7）Finishing；（8）Polishing；（9）Destressing is tempered.A kind of automobile die steel processing technology of the present invention can improve its obdurability, prevent mould premature failure from failing by specification each step requirement, Parameter Conditions and points for attention.
Description
Technical field
The invention belongs to automobile die steel processing technology field, is specifically a kind of automobile die steel processing technology.
Background technology
3Cr2W8 steel are one of current domestic widely used cold-working automobile die steel.The steel have quenching degree
Good, the advantages that hardness is high and wear-resisting, high-temperature process deformation is small, be usually used in making those and bear heavy load, produce of large quantities, shape
The cold-working mould of shape complexity, such as cold punching, coining, cold-heading, cold extruding die.But the significant drawback of the steel is that brittleness is big, often
Often result in the initial failure of mould.Therefore, its obdurability how is improved, prevents mould premature failure from failing, is that the steel are used
Family frequently encounters and problem to be solved.Mould invalidation analysis shows, high-temperature process factor influence maximum, account for 50%, mirror
In existing technique is deposited the defects of, in order to ensure product quality, it is necessary to be further improved.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of automobile die steel processing technology,
Its obdurability can be improved, prevents mould premature failure from failing.
A kind of automobile die steel processing technology, material 3Cr2W8, it is characterised in that the process includes following step
Suddenly：
（1）Forge technique:Pre- 760 DEG C~830 DEG C of high-temperature temperature, increases temperature 950 DEG C~2100 DEG C of temperature, 1050 DEG C of initial forging temperature
~2100 DEG C, 830 DEG C~950 DEG C of final forging temperature, slow cooling；When forging, upset pulling repeatedly is no less than 3 times；During forging, temperature
Tip-tap when spending 1050 DEG C of ＞；Beaten again during 970~1050 DEG C of temperature；Tip-tap during 970 DEG C of temperature ＜；
（2）Annealing process：Increase temperature and be warming up to 860 DEG C with the speed of≤90 DEG C/h, with 25-30 DEG C/h speed to furnace cooling
750 DEG C, then furnace cooling with 10-15 DEG C/h speed to 600 DEG C of furnace cooling, then come out of the stove air-cooled；
（3）Roughing；
（4）It is quenched：Pre- 600-600 DEG C of high temperature for the first time, keeps the temperature 45-60min；Second of pre- 830-830 DEG C of high temperature, keeps the temperature 45-
60min, soaking time press 1.5min/mm；Increase temperature again to 1115 DEG C, oil of then quenching；760 DEG C of temperature, it is air-cooled after tempering；
（5）Half smart car；
（6）High-temperature process：Vacuum hardening, pre- 600~600 DEG C of high temperature, keeps the temperature 45-60min, second of pre- high temperature for the first time：840
~860 DEG C, 45-60min is kept the temperature, soaking time is calculated by 1.5min/mm；980 DEG C of hardening heat, oil cooling, medium temperature 15~
30℃；It is then air-cooled to be cooled to oil temperature；
（7）Finishing；（8）Polishing：Roughness is less than 0.6um；（9）Destressing is tempered：2100-150 DEG C of temperature, when
Between 2-2.5h.
A kind of automobile die steel processing technology of the present invention is by each step requirement of specification, Parameter Conditions and pays attention to thing
, its obdurability can be improved, prevents mould premature failure from failing.
Embodiment
With reference to embodiment, the invention will be further described, its operating procedure is as follows：
A kind of automobile die steel processing technology, material 3Cr2W8, the process comprise the following steps：
（1）Forge technique:Pre- 760 DEG C~830 DEG C of high-temperature temperature, increases temperature 950 DEG C~2100 DEG C of temperature, 1050 DEG C of initial forging temperature
~2100 DEG C, 830 DEG C~950 DEG C of final forging temperature, slow cooling；When forging, upset pulling repeatedly is no less than 3 times；During forging, temperature
Tip-tap when spending 1050 DEG C of ＞；Beaten again during 970~1050 DEG C of temperature；Tip-tap during 970 DEG C of temperature ＜；
（2）Annealing process：Increase temperature and be warming up to 860 DEG C with the speed of≤90 DEG C/h, with 25-30 DEG C/h speed to furnace cooling
750 DEG C, then furnace cooling with 10-15 DEG C/h speed to 600 DEG C of furnace cooling, then come out of the stove air-cooled；
（3）Roughing；
（4）It is quenched：Pre- 600-600 DEG C of high temperature for the first time, keeps the temperature 45-60min；Second of pre- 830-830 DEG C of high temperature, keeps the temperature 45-
60min, soaking time press 1.5min/mm；Increase temperature again to 1115 DEG C, oil of then quenching；760 DEG C of temperature, it is air-cooled after tempering；
（5）Half smart car；
（6）High-temperature process：Vacuum hardening, pre- 600~600 DEG C of high temperature, keeps the temperature 45-60min, second of pre- high temperature for the first time：840
~860 DEG C, 45-60min is kept the temperature, soaking time is calculated by 1.5min/mm；980 DEG C of hardening heat, oil cooling, medium temperature 15~
30℃；It is then air-cooled to be cooled to oil temperature；
（7）Finishing；（8）Polishing：Roughness is less than 0.6um；（9）Destressing is tempered：2100-150 DEG C of temperature, when
Between 2-2.5h.
Claims (1)
1. a kind of automobile die steel processing technology, material 3Cr2W8, it is characterised in that the process includes following step
Suddenly：
（1）Forge technique:Pre- 760 DEG C~830 DEG C of high-temperature temperature, increases temperature 950 DEG C~2100 DEG C of temperature, 1050 DEG C of initial forging temperature
~2100 DEG C, 830 DEG C~950 DEG C of final forging temperature, slow cooling；When forging, upset pulling repeatedly is no less than 3 times；During forging, temperature
Tip-tap when spending 1050 DEG C of ＞；Beaten again during 970~1050 DEG C of temperature；Tip-tap during 970 DEG C of temperature ＜；
（2）Annealing process：Increase temperature and be warming up to 860 DEG C with the speed of≤90 DEG C/h, with 25-30 DEG C/h speed to furnace cooling
750 DEG C, then furnace cooling with 10-15 DEG C/h speed to 600 DEG C of furnace cooling, then come out of the stove air-cooled；
（3）Roughing；
（4）It is quenched：Pre- 600-600 DEG C of high temperature for the first time, keeps the temperature 45-60min；Second of pre- 830-830 DEG C of high temperature, keeps the temperature 45-
60min, soaking time press 1.5min/mm；Increase temperature again to 1115 DEG C, oil of then quenching；760 DEG C of temperature, it is air-cooled after tempering；
（5）Half smart car；
（6）High-temperature process：Vacuum hardening, pre- 600~600 DEG C of high temperature, keeps the temperature 45-60min, second of pre- high temperature for the first time：840
~860 DEG C, 45-60min is kept the temperature, soaking time is calculated by 1.5min/mm；980 DEG C of hardening heat, oil cooling, medium temperature 15~
30℃；It is then air-cooled to be cooled to oil temperature；
（7）Finishing；（8）Polishing：Roughness is less than 0.6um；（9）Destressing is tempered：2100-150 DEG C of temperature, when
Between 2-2.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910022.0A CN107964578A (en) | 2016-10-19 | 2016-10-19 | A kind of automobile die steel processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910022.0A CN107964578A (en) | 2016-10-19 | 2016-10-19 | A kind of automobile die steel processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107964578A true CN107964578A (en) | 2018-04-27 |
Family
ID=61996235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610910022.0A Withdrawn CN107964578A (en) | 2016-10-19 | 2016-10-19 | A kind of automobile die steel processing technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN107964578A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182699A (en) * | 2018-09-30 | 2019-01-11 | 中山市东特模具钢材制品有限公司 | A kind of processing technology of die steel |
| CN110343817A (en) * | 2019-07-30 | 2019-10-18 | 河源市兴达源模具有限公司 | A kind of automobile die steel processing technology |
| CN111872294A (en) * | 2020-07-14 | 2020-11-03 | 山东能源重装集团金源机械有限公司 | Method for improving forging processing quality of petroleum elevator |
| CN111979392A (en) * | 2020-08-31 | 2020-11-24 | 昆山海子精密金属工业有限公司 | Efficient machining process for die steel |
-
2016
- 2016-10-19 CN CN201610910022.0A patent/CN107964578A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182699A (en) * | 2018-09-30 | 2019-01-11 | 中山市东特模具钢材制品有限公司 | A kind of processing technology of die steel |
| CN110343817A (en) * | 2019-07-30 | 2019-10-18 | 河源市兴达源模具有限公司 | A kind of automobile die steel processing technology |
| CN111872294A (en) * | 2020-07-14 | 2020-11-03 | 山东能源重装集团金源机械有限公司 | Method for improving forging processing quality of petroleum elevator |
| CN111979392A (en) * | 2020-08-31 | 2020-11-24 | 昆山海子精密金属工业有限公司 | Efficient machining process for die steel |
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180427 |