CN110343817A - A kind of automobile die steel processing technology - Google Patents
A kind of automobile die steel processing technology Download PDFInfo
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- CN110343817A CN110343817A CN201910695896.2A CN201910695896A CN110343817A CN 110343817 A CN110343817 A CN 110343817A CN 201910695896 A CN201910695896 A CN 201910695896A CN 110343817 A CN110343817 A CN 110343817A
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- die steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of automobile die steel processing technology, raw material are carried out to forge blank processing, when forging, upset pulling no less than 5 times repeatedly；Each face of material need to there are the machining allowance of 0.4-0.5mm or so after blank processing, then carry out roughing processing for the raw material after blank is processed is forged, and stay machining allowance 3.5-5mm to obtain roughing and wait for embryo material；Obtained roughing is waited for that embryo material is placed in vacuum hardening in the furnace that temperature is 700-900 DEG C, after embryo material temperature and furnace temperature balance, heat preservation 45-60 minutes, stove fire is warming up in 1000-1100 DEG C of high temperature again and is quenched again, heat preservation 30-40 minutes, when temperature is that 700 DEG C or so taking-ups carry out oil of quenching, until oil temperature or oil are cold, 15-30 DEG C of medium temperature, obtain the mold materials through high-temperature process；A kind of automobile die steel processing technology of the present invention is quenched by multiple high temperature, so that the service life increases mold when in use, while the case where also to make mold in long-term use be not in deformation, ensure that the intensity and toughness of mold.
Description
Technical field
The invention belongs to automobile die steel processing technology field, in particular to a kind of automobile die steel processing technology.
Background technique
Automobile die steel are for the material in automobile production as its name suggests, and mold materials are the objects of mold manufacturing industry
Matter and technical foundation, wherein die steel is traditional mold materials, kind, specification, quality to the performance of mold, use the longevity
Life and manufacturing cycle play conclusive effect, and manufacture mould material material range is very wide, most widely used in mold materials to work as
Belong to die steel；And the processing technology of existing automobile die steel, after multiple high temperature quenching treatment, degree of flexibility is low
Be easy to appear deformation, while mold is heat-treated when just being processed so that internal residual destressing it is big, will lead to
Occur slight crack or broken phenomenon in subsequent production, and technics comparing is complicated during existing processing, for this purpose,
It is proposed that a kind of automobile die steel processing technology.
Summary of the invention
The main purpose of the present invention is to provide a kind of automobile die steel processing technologys, can effectively solve background technique
The problems in.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of automobile die steel processing technology, which is characterized in that the automobile die steel processing technology includes following
Step:
Step 1: raw material are carried out to forge blank processing, when forging, upset pulling no less than 3-5 times repeatedly；Blank adds
Each face of material need to there are the machining allowance of 0.4-0.5mm or so after work, then carry out roughing for the raw material after blank is processed is forged
Processing, and stay machining allowance 3.5-5mm to obtain roughing and wait for embryo material；
Step 2: obtained roughing is waited for that embryo material is placed in vacuum hardening in the furnace that temperature is 700-900 DEG C, to embryo material
After temperature and furnace temperature balance, 45-60 minutes are kept the temperature, stove fire is warming up in 1000-1100 DEG C of high temperature quenches again again, is kept the temperature
30-40 minutes, when temperature is that 700 DEG C or so taking-ups carry out oil of quenching, until oil temperature or oily cold, obtains by 15-30 DEG C of medium temperature
Mold materials through high-temperature process；
Step 3: carrying out fining-off processing for the material through high-temperature process is obtained, polishing treatment makes its roughness light rain
Within Ra0.5 microns, preliminary molding mold is obtained；
It is heat-treated Step 4: preliminary molding die steel will be arrived, the mold Jing Guo fining-off is sent into heat treatment
It is heat-treated in furnace, is handled by the destressing that preliminary molding die is completed in heat treatment；Obtain the molding die of destressing；
Step 5: the molding die of destressing is carried out finishing processing and super cure process, by diffusion method by metal
The surface that carbide is covered on die steel carries out super cure process, is finally completed the processing of automobile die steel, obtains quality
High die steel.
Preferably, during forging, 1200 DEG C of temperature > or tip-tap at 700 DEG C of temperature <；Weight at 750-1100 DEG C of temperature
It beats.
Preferably, tempering temperature is 300-600 DEG C in heat treatment, and the time is 120-150 minutes.
Preferably, after heat treated, the die steel being finally completed is put into thermostatic chamber and is gradually cooled down.
Preferably, operating ambient temperature when finishing is 400-550 DEG C.
Compared with prior art, the invention has the following beneficial effects: the automobile die steel processing technologys, by repeatedly
Multiple high temperature quenching treatment, keeps its degree of flexibility high, is during use not in the feelings of deformation, crackle and interruption
Condition, so that die steel is bordering on zero deformation after treatment, while being heat-treated in follow-up process and being increased super cure process,
It so that remaining destressing of the die steel after Overheating Treatment is small, can prevent die steel premature failure from failing, and increase super
Cure process enables to material to increase intensity and performance, is able to ascend product quality, so that product material consistency is high, it should
Preparation process is simple, at low cost, has better prospect of the application.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
A kind of automobile die steel processing technology of the invention when processing, raw material is carried out to forge blank processing, are forged
When, upset pulling no less than 3-5 times repeatedly；Each face of material need to be there are the machining allowance of 0.4-0.5mm or so after blank processing, will
Raw material after forging blank processing carries out roughing processing, and stays machining allowance 3.5-5mm to obtain roughing and wait for embryo material, and forges
Processing can eliminate the defects of as cast condition generated in smelting process is loose, while obtain complete streamline, add die steel
Obtained roughing is waited for that embryo material is placed in vacuum in the furnace that temperature is 700-900 DEG C and quenches for preferable mechanical performance by tool
Fire keeps the temperature 45-60 minutes, is again warming up to stove fire in 1000-1100 DEG C of high temperature again after embryo material temperature and furnace temperature balance
Quenching keeps the temperature 30-40 minutes, when temperature is that 700 DEG C or so taking-ups carry out oil of quenching, until oil temperature or cold, the medium temperature 15- of oil
30 DEG C, the mold materials through high-temperature process are obtained, its purpose is to handle repeatedly by high temperature to change die steel
Internal organizational structure, processing performance, service performance so as to improve workpiece extend the service life of part, improve product matter
Secondly amount will obtain material through high-temperature process and carry out fining-off processing, polishing treatment make Ra0.5 microns of its roughness light rain with
It is interior, preliminary molding mold is obtained, polishes and checks its hardness except the beauty that can make die steel, be that next link is thin
Processing is prepared, and will be arrived preliminary molding die steel and is heat-treated, the mold Jing Guo fining-off is sent into heat-treatment furnace
It is heat-treated, is handled by the destressing that preliminary molding die is completed in heat treatment；Obtain the molding die of destressing；So that mould
It is small to have remaining destressing of the steel after Overheating Treatment, can prevent die steel premature failure from failing, further to mold
Steel improve quality, and the molding die of destressing is finally carried out finishing processing and super cure process, will be golden by diffusion method
The surface that category carbide is covered on die steel carries out super cure process, the purpose is to be able to ascend product quality, so that product
Material consistency is high, is finally completed the processing of automobile die steel, obtains the high die steel of quality.
Embodiment 1
Firstly, raw material are carried out to forge blank processing, when forging, upset pulling no less than 3 times, forge process repeatedly
In, tip-tap when temperature is greater than 1200 DEG C or temperature less than 700 DEG C；750 DEG C of temperature or so are beaten again, and each face of material needs after blank processing
There are the machining allowance of 0.4mm or so, then carry out roughing processing for the raw material after blank is processed is forged, and stay machining allowance
3.5mm obtains roughing and waits for embryo material；Secondly obtained roughing is waited for that embryo material is placed in vacuum in the furnace that temperature is 700 DEG C and quenches
Fire keeps the temperature 50 minutes, stove fire is warming up in 1000 DEG C of high temperature quenches again again, protect after embryo material temperature and furnace temperature balance
Temperature 30 minutes, when temperature be 700 DEG C or so taking-up carry out oil of quenching, until oil temperature or oil it is cold, medium temperature be 25 DEG C, obtain through
The mold materials of high-temperature process；It will obtain the material through high-temperature process and carry out fining-off processing, polishing treatment keeps its roughness small
Within Ra0.5 microns of rain, preliminary molding mold is obtained；Preliminary molding die steel will be arrived to be heat-treated, it will be through meticulous
The mold of processing is sent into heat-treatment furnace and is heat-treated, and tempering temperature is set as 400 DEG C in heat treatment, and the time is 130 minutes
The destressing processing of preliminary molding die is completed by heat treatment；Obtain the molding die of destressing；By the shaping mould of destressing
Tool carries out finishing processing and super cure process, and operating ambient temperature when finishing is 400 DEG C, then by diffusion method by metal
The surface that carbide is covered on die steel carries out super cure process, is finally completed the processing of automobile die steel；
Through detecting, die steel surface is in brilliant white, and obtained steel density is 8.20g/cm3, phosphorus content is
3.3%, Rockwell hardness HRC24.
Embodiment 2
Firstly, raw material are carried out to forge blank processing, when forging, upset pulling no less than 5 times, forge process repeatedly
In, temperature tip-tap when being greater than 1200 DEG C or temperature less than 700 DEG C；1100 DEG C of temperature or so are beaten again, and material is each after blank processing
Face need to there are the machining allowance of 0.5mm or so, then carry out roughing processing for the raw material after blank is processed is forged, and stay more than processing
Amount 5mm obtains roughing and waits for embryo material；Secondly obtained roughing is waited for that embryo material is placed in vacuum in the furnace that temperature is 900 DEG C and quenches
Fire keeps the temperature 60 minutes, stove fire is warming up in 1100 DEG C of high temperature quenches again again, protect after embryo material temperature and furnace temperature balance
Temperature 40 minutes, when temperature be 700 DEG C or so taking-up carry out oil of quenching, until oil temperature or oil it is cold, medium temperature be 30 DEG C, obtain through
The mold materials of high-temperature process；It will obtain the material through high-temperature process and carry out fining-off processing, polishing treatment keeps its roughness small
Within Ra0.5 microns of rain, preliminary molding mold is obtained；Preliminary molding die steel will be arrived to be heat-treated, it will be through meticulous
The mold of processing is sent into heat-treatment furnace and is heat-treated, and tempering temperature is set as 600 DEG C in heat treatment, and the time is 150 minutes
The destressing processing of preliminary molding die is completed by heat treatment；Obtain the molding die of destressing；By the shaping mould of destressing
Tool carries out finishing processing and super cure process, and operating ambient temperature when finishing is 550 DEG C, then by diffusion method by metal
The surface that carbide is covered on die steel carries out super cure process, is finally completed the processing of automobile die steel；
Through detecting, die steel surface is in brilliant white, and resulting steel density is 8.41g/cm3, phosphorus content 3.45%,
Rockwell hardness is HRC26.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of automobile die steel processing technology, which is characterized in that the automobile die steel processing technology includes following step
It is rapid:
Step 1: raw material are carried out to forge blank processing, when forging, upset pulling no less than 3-5 times repeatedly；After blank processing
Each face of material need to there are the machining allowance of 0.4-0.5mm or so, then carry out roughing processing for the raw material after blank is processed is forged,
And it stays machining allowance 3.5-5mm to obtain roughing and waits for embryo material；
Step 2: obtained roughing is waited for that embryo material is placed in vacuum hardening in the furnace that temperature is 700-900 DEG C, to embryo material temperature
After furnace temperature balance, 45-60 minutes are kept the temperature, stove fire is warming up in 1000-1100 DEG C of high temperature quenches again again, keeps the temperature 30-
40 minutes, when temperature is that 700 DEG C or so taking-up carry out oil of quenching, until oil temperature or oily cold, 15-30 DEG C of medium temperature, obtain through
The mold materials of high-temperature process；
Step 3: carrying out fining-off processing for the material through high-temperature process is obtained, polishing treatment keeps its roughness light rain Ra0.5 micro-
Within rice, preliminary molding mold is obtained；
It is heat-treated Step 4: preliminary molding die steel will be arrived, the mold Jing Guo fining-off is sent into heat-treatment furnace
It is heat-treated, is handled by the destressing that preliminary molding die is completed in heat treatment；Obtain the molding die of destressing；
Step 5: the molding die of destressing is carried out finishing processing and super cure process, by diffusion method by metallic carbide
The surface that object is covered on die steel carries out super cure process, is finally completed the processing of automobile die steel, it is high to obtain quality
Die steel.
2. a kind of automobile die steel processing technology according to claim 1, it is characterised in that: during forging, temperature
1200 DEG C of > or tip-tap at 700 DEG C of temperature <；It is beaten again at 750-1100 DEG C of temperature.
3. a kind of automobile die steel processing technology according to claim 1, it is characterised in that: tempering temperature in heat treatment
To be 300-600 DEG C, the time is 120-150 minutes.
4. a kind of automobile die steel processing technology according to claim 1, it is characterised in that:, will most after heat treated
The die steel completed eventually, which is put into thermostatic chamber, gradually to cool down.
5. a kind of preparation process of automobile die steel processing technology according to claim 1, it is characterised in that: finishing
When operating ambient temperature be 400-550 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695896.2A CN110343817A (en) | 2019-07-30 | 2019-07-30 | A kind of automobile die steel processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695896.2A CN110343817A (en) | 2019-07-30 | 2019-07-30 | A kind of automobile die steel processing technology |
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| Publication Number | Publication Date |
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| CN110343817A true CN110343817A (en) | 2019-10-18 |
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ID=68179065
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| CN201910695896.2A Pending CN110343817A (en) | 2019-07-30 | 2019-07-30 | A kind of automobile die steel processing technology |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010007120A (en) * | 2008-06-25 | 2010-01-14 | Sanyo Special Steel Co Ltd | Method for manufacturing high-strength carburized component |
| CN105755241A (en) * | 2014-12-13 | 2016-07-13 | 湖南衡山汽车制造有限公司 | Processing technology for DC53 steel automobile punching die's concave die |
| CN105986074A (en) * | 2015-01-30 | 2016-10-05 | 重庆沁煌机械制造有限公司 | Die steel processing technology |
| CN107866660A (en) * | 2016-09-24 | 2018-04-03 | 重庆向阳仪器有限公司 | A kind of die steel processing technology |
| CN107964578A (en) * | 2016-10-19 | 2018-04-27 | 重庆华厦新力新能源汽车有限公司 | A kind of automobile die steel processing technology |
| CN108637616A (en) * | 2018-05-03 | 2018-10-12 | 无锡智高点技术研发有限公司 | A kind of mould processing technology |
-
2019
- 2019-07-30 CN CN201910695896.2A patent/CN110343817A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010007120A (en) * | 2008-06-25 | 2010-01-14 | Sanyo Special Steel Co Ltd | Method for manufacturing high-strength carburized component |
| CN105755241A (en) * | 2014-12-13 | 2016-07-13 | 湖南衡山汽车制造有限公司 | Processing technology for DC53 steel automobile punching die's concave die |
| CN105986074A (en) * | 2015-01-30 | 2016-10-05 | 重庆沁煌机械制造有限公司 | Die steel processing technology |
| CN107866660A (en) * | 2016-09-24 | 2018-04-03 | 重庆向阳仪器有限公司 | A kind of die steel processing technology |
| CN107964578A (en) * | 2016-10-19 | 2018-04-27 | 重庆华厦新力新能源汽车有限公司 | A kind of automobile die steel processing technology |
| CN108637616A (en) * | 2018-05-03 | 2018-10-12 | 无锡智高点技术研发有限公司 | A kind of mould processing technology |
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Application publication date: 20191018 |