CN106734470A - Automobile panel heat stamping and shaping method - Google Patents
Automobile panel heat stamping and shaping method Download PDFInfo
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- CN106734470A CN106734470A CN201710008277.2A CN201710008277A CN106734470A CN 106734470 A CN106734470 A CN 106734470A CN 201710008277 A CN201710008277 A CN 201710008277A CN 106734470 A CN106734470 A CN 106734470A
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- slab
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- stamping
- steel band
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0209—Multistage baking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- C21D1/62—Quenching devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a kind of automobile panel heat stamping and shaping method, covering is molded using steel hot stamping, and steel plate includes steel plate body and coating, before steel hot stamping shaping, heat-sink shell is sprayed in surface of steel plate, and heat-sink shell uniform fold is on the coating.The core procedure of automobile panel heat stamping and shaping method is as follows：（1）Coil of strip uncoiling；（2）Spraying heat-sink shell so that heat-absorbing material sticks to steel strip surface to form heat-sink shell；（3）Punching slab；4）Heating punching press：It is the shape of covering by slab heat stamping and shaping；（5）Pressurize quenches.Efficiently solve the technical problem of the liquid metal embrittlement fracture that the melting Zn that existing plated steel sheet heat stamping and shaping includes in the heating of hot pressing front spring in coating invades bottom steel plate and causes, and cause the complete quenching hardening of steel plate so that the mechanical strength of autopanel product is optimal.
Description
Technical field
The present invention relates to drop stamping technical field, more particularly to a kind of automobile panel heat stamping and shaping method.
Background technology
Drop stamping technology was proposed first early in 1977 by the Plannja Hard Tech companies of Sweden, until 1984
In Sweden's first Application in the production of automobile component, by the development of more than 20 years, drop stamping vehicle body parts reached annual output 1.5
Hundred million.And hot stamping operation includes multidisciplinary, multi-field knowledge, research difficulty is very big, currently mainly there is Europe
Thyssen-Krupp iron companies, Benteler motor corporations, Arcelor Cera, ASME
(ASME), the enterprise such as Daimler-Chrysler companies, species abundance in Baosteel in Shanghai, Chinese Tongji University has carried out related grinding to scientific research institutions
Study carefully work.
Hot press-formed technique refers to：First by material（Superhigh intensity/high strength steel）It is heated to set point of temperature, insulation regulation
Time is allowed to complete austenitizing, is then shaped by mould punching；Material pressurize quenching in mould, cooling while shaping
The part with uniform martensitic structure is obtained afterwards, and tensile strength is up to 1500MPa.The difference of drop stamping and common cold stamping
And advantage, it is mainly reflected in：（1）Material resistance of deformation is small after heating, plasticity is good, forming limit is high, be readily formed, and it is right to reduce
The requirement of former and mould；（2）The part strength that super-high strength steel is made is very high, and the shock resistance of vehicle body is improved on the whole
With fatigue capability, so as to improve the security of automobile；Simplify body structure and parts design, effectively reduce reinforcing plate number
Amount, realizes the target of body lightening.Therefore, hot press-formed parts are applied more and more extensively, especially in the car
Vehicle body supporting construction class part such as B posts, A posts, front/rear collision bumper, longitudinal load-bearing beam etc..
There are two kinds of approach in drop stamping：Directly or indirectly hot stamping method.In direct drop stamping, semi-finished product are heated to
The austenitic temperature of steel, and kept for 5 minutes or so at such a temperature, tissue is obtained abundant austenitizing, punching press is then transferred to,
Then it is molded in closed molds and is quenched.
Patent " manufacture methods of hot press parts "（Application number：2014800369512）In to refer to a kind of corrosion resistance excellent
The manufacture method of different hot press parts, and a kind of liquid gold that will not be produced caused by the zinc in coating invades steel plate is provided
Category brittle fracture, the hot press parts that resistance to liquid metal embrittlement is excellent manufacture method.The manufacture method of the hot press parts, will plate
Deposited steel plate is heated to 850 DEG C~950 DEG C, when the temperature of plated steel sheet after the heating is 650 DEG C~800 DEG C, starts to be hot pressed into
Type, the plated steel sheet has bottom steel plate and the coating being formed in the bottom steel plate, and coating contains 10 mass %~25 matter
The Ni of % is measured, remaining part is made up of Zn and inevitable impurity, the adhesion amount on single surface is 10g/m2~90g/m2.Although,
The melting Zn that the patented technology can suppress to be included in coating in the heating of hot pressing front spring invades bottom steel plate and causes
Liquid metal embrittlement fracture, but due to be by the temperature Slow cooling of plated steel sheet after the heating be 650 DEG C~800 DEG C
When, beginning is hot-forming, will so cause steel plate from complete quenching hardening, and causing the mechanical strength of product can not reach most
Excellent, based on this, the present inventor proposes a kind of automobile panel heat stamping and shaping method to solve above-mentioned technical problem.
The content of the invention
The invention provides a kind of automobile panel heat stamping and shaping method, existing plated steel sheet heat punching is efficiently solved
The liquid metal that the molded melting Zn included in coating in the heating of hot pressing front spring invades bottom steel plate and causes
The technical problem of brittle fracture, and cause the complete quenching hardening of steel plate so that the mechanical strength of product is optimal.
In order to solve the above technical problems, the invention provides a kind of automobile panel heat stamping and shaping method, the covering
Part is molded using steel hot stamping, and the steel plate includes steel plate body and coating, before steel hot stamping shaping, in steel plate table
Face sprays heat-sink shell, and the heat-sink shell uniform fold is on the coating.
Wherein, the automobile panel heat stamping and shaping method is comprised the following steps that：
（1）Coil of strip uncoiling：To be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, and coil of strip is opened
Volume, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell region by pinch roll；
（2）Spraying heat-sink shell：Steel band after uncoiling, cleaning and aligning is sent to spray station by pinch roll, first,
Under the transmission of pinch roll, steel band enters heating workshop section, and steel band is heated into 40 DEG C -55 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, in the presence of upper and lower multiple nozzles, by heat-absorbing material even application in steel strip surface, most
Afterwards, steel band enters drying station, and steel band is heated into 110 DEG C -125 DEG C, steel band is dried so that heat-absorbing material sticks to steel band
Surface is forming heat-sink shell；
（3）Punching slab：The steel band that heat-sink shell will be formed with is sent to punching station by transfer roller, initially enters metering work
Section, steel band is sent to blanking equipment by metering roll according to certain length batch (-type) as requested, so as to be punched the plate of certain size
Base, also, it was additionally provided with buffer area before workshop section is measured so that the steel band of continuous transmission is not by the shadow of batch (-type) metering roll
Ring；
（4）Heating punching press：The slab of punching is sent to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, it is put into slab is single on pressing equipment, by slab electrified regulation, when heating of plate blank is to 700 DEG C -750 DEG C, slab table
The heat-absorbing material in face starts to volatilize and/or rise Huawei's gas, and largely takes away the heat of steel slab surface so that steel slab surface is close to
The temperature of cladding region is less than 800 DEG C, and slab internal temperature continues to be heated to 900 DEG C -950 DEG C so that slab inside is completely
Austenitizing, then, power-off, mould is descending, is the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches：Mould is kept into certain pressure under matched moulds state, and cooling medium is passed through in mould so that
Slab after heat stamping and shaping is quickly cooled down, and is cooled down with the cooling velocity more than 15 DEG C/S so that slab completes pressurize and quenches
Fire；
（6）Packaging and storage：The covering that pressurize is quenched is taken out with manipulator, is put into transfer roller, is set in transfer roller
There is cooling blower, covering is cooled to room temperature, then, be sent to detection workshop section, covering is detected, finally proceed to
Oiling packing department, is packed and is put in storage to covering.
Wherein, in step（4）In, the pressing equipment includes punch press, mould, heater block, cooling-part and heat absorption
Material recovery part, the heater block uses Electric heating, the cooling-part include being arranged on the upper mould of mould and
Circulating cooling path on lower mould, the recovery part is arranged on mould top, and Huawei's gas will be volatilized and/or risen by induced-draught fan
Body heat-absorbing material is collected and cools down recovery.
Wherein, the heat-absorbing material is fire-retardant heat-absorbing material, and the volatilization of the heat-absorbing material and/or sublimation temperature are 700
℃-800℃。
One or more technical schemes that the application is provided, at least have the following technical effect that or advantage：
The core scheme of the application is as follows：
Steel hot stamping shaping before, surface of steel plate spray heat-sink shell, the heat-sink shell uniform fold on the coating,
The core procedure of automobile panel heat stamping and shaping method is as follows：
（1）Coil of strip uncoiling；
（2）Spraying heat-sink shell：Steel band after uncoiling, cleaning and aligning is sent to spray station by pinch roll, first,
Under the transmission of pinch roll, steel band enters heating workshop section, and steel band is heated into 40 DEG C -55 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, in the presence of upper and lower multiple nozzles, by heat-absorbing material even application in steel strip surface, most
Afterwards, steel band enters drying station, and steel band is heated into 110 DEG C -125 DEG C, steel band is dried so that heat-absorbing material sticks to steel band
Surface is forming heat-sink shell；
（3）Punching slab；
（4）Heating punching press：The slab of punching is sent to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, it is put into slab is single on pressing equipment, by slab electrified regulation, when heating of plate blank is to 700 DEG C -750 DEG C, slab table
The heat-absorbing material in face starts to volatilize and/or rise Huawei's gas, and largely takes away the heat of steel slab surface so that steel slab surface is close to
The temperature of cladding region is less than 800 DEG C, and slab internal temperature continues to be heated to 900 DEG C -950 DEG C so that slab inside is completely
Austenitizing, then, power-off, mould is descending, is the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches；
（6）Packaging and storage.
As a result of above-mentioned core scheme, existing plated steel sheet heat stamping and shaping is efficiently solved in hot pressing front spring
Heating when coating in the melting Zn that the includes technical problem of liquid metal embrittlement fracture that invades bottom steel plate and cause,
Also, because in drop stamping quenching process, steel plate internal temperature is in austenitizing temperature, enables to steel plate to quench completely
Hardening so that the mechanical strength of product is optimal, also, in drop stamping, without waiting for temperature fall time, accelerate production effect
Rate.
Brief description of the drawings
Fig. 1 is the schematic diagram of light plate of the present invention；
Fig. 2 is the schematic diagram that light plate of the present invention is coated with heat-sink shell；
Fig. 3 is the flow chart of heat stamping and shaping technique in the embodiment of the present invention；
Fig. 4 is the schematic diagram of embodiment of the present invention light plate hot stamping forming die；
In figure, 1 steel plate, 10 steel plate bodies, 11 coating, 12 heat-sink shells, 2 moulds, mould on 21,22 times moulds, 3 heating parts
Part.
Specific embodiment
Technical scheme in present embodiment is solution above-mentioned technical problem.General thought is as follows：
There is provided a kind of automobile panel heat stamping and shaping method, covering includes steel plate using the heat stamping and shaping of steel plate 1, steel plate
Body 10 and coating 11, before steel hot stamping shaping, in the surface spraying heat-sink shell 112 of steel plate 1, heat-sink shell uniform fold exists
On the coating.
The key step of automobile panel heat stamping and shaping method is as follows：
（1）Coil of strip uncoiling；
（2）Spraying heat-sink shell so that heat-absorbing material sticks to steel strip surface to form heat-sink shell；
（3）Punching slab, is sent to blanking equipment, so as to be punched the slab of certain size by steel band according to certain length；
（4）Heating punching press, is the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches, and the slab after heat stamping and shaping is quickly cooled down, and is cooled down with the cooling velocity more than 15 DEG C/S,
So that slab completes pressurize quenching；
（6）Packaging and storage.
Embodiment one：
In embodiment one, there is provided a kind of automobile panel heat stamping and shaping method, referring to Fig. 1-4, covering uses steel plate 1
Heat stamping and shaping, steel plate 1 includes steel plate body 10 and coating 11, first before steel hot stamping shaping, in the spray of the surface of steel plate 1
Heat-sink shell 12 is applied, the uniform fold of heat-sink shell 12 is on the coating 11.Comprise the following steps that：
（1）Coil of strip uncoiling：To be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, and coil of strip is opened
Volume, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell region by pinch roll；
（2）Spraying heat-sink shell：Steel band after uncoiling, cleaning and aligning is sent to spray station by pinch roll, first,
Under the transmission of pinch roll, steel band enters heating workshop section, and steel band is heated into 45 DEG C using the heating workshop section of spray station, secondly,
Steel band enters spraying workshop section, in the presence of upper and lower multiple nozzle, by heat-absorbing material even application in steel strip surface, finally, steel
Band enters drying station, and steel band is heated into 115 DEG C, and steel band is dried so that heat-absorbing material sticks to steel strip surface to be formed
Heat-sink shell；
（3）Punching slab：The steel band that heat-sink shell will be formed with is sent to punching station by transfer roller, initially enters metering work
Section, steel band is sent to blanking equipment by metering roll according to certain length batch (-type) as requested, so as to be punched the plate of certain size
Base, also, it was additionally provided with buffer area before workshop section is measured so that the steel band of continuous transmission is not by the shadow of batch (-type) metering roll
Ring；
（4）Heating punching press：The slab of punching is sent to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, it is put into slab is single on pressing equipment, by slab electrified regulation, when heating of plate blank is to 720 DEG C, the suction of steel slab surface
Hot material starts to volatilize and/or rise Huawei's gas, and largely takes away the heat of steel slab surface so that steel slab surface is near coating area
The temperature in domain is less than 800 DEG C, and slab internal temperature continues to be heated to 920 DEG C so that slab inside complete austenitizing, so
Afterwards, power off, mould is descending, be the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches：Mould is kept into certain pressure under matched moulds state, and cooling medium is passed through in mould so that
Slab after heat stamping and shaping is quickly cooled down, and is cooled down with the cooling velocity more than 25 DEG C/S so that slab completes pressurize and quenches
Fire；
（6）Packaging and storage：The covering that pressurize is quenched is taken out with manipulator, is put into transfer roller, is set in transfer roller
There is cooling blower, covering is cooled to room temperature, then, be sent to detection workshop section, covering is detected, finally proceed to
Oiling packing department, is packed and is put in storage to covering.
In the present embodiment, in step（4）In, pressing equipment include punch press, mould 2, heater block 3, cooling-part with
And heat-absorbing material recovery part, heater block uses Electric heating, cooling-part include being arranged on the upper mould of mould and under
Circulating cooling path on mould, recovery part is arranged on mould top, and Huawei's gas heat absorption will be volatilized and/or risen by induced-draught fan
Material is collected and cools down recovery.
Its present embodiment, heat-absorbing material is fire-retardant heat-absorbing material, and the volatilization of heat-absorbing material and/or sublimation temperature are 720 DEG C.
Embodiment two：
In embodiment two, there is provided a kind of automobile panel heat stamping and shaping method, referring to Fig. 1-4, covering is using the warm of steel plate 1
Punch forming, steel plate 1 includes steel plate body 10 and coating 11, first before steel hot stamping shaping, in the surface spraying of steel plate 1
Heat-sink shell 12, the uniform fold of heat-sink shell 12 is on the coating 11.Comprise the following steps that：
（1）Coil of strip uncoiling：To be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, and coil of strip is opened
Volume, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell region by pinch roll；
（2）Spraying heat-sink shell：Steel band after uncoiling, cleaning and aligning is sent to spray station by pinch roll, first,
Under the transmission of pinch roll, steel band enters heating workshop section, and steel band is heated into 50 DEG C using the heating workshop section of spray station, secondly,
Steel band enters spraying workshop section, in the presence of upper and lower multiple nozzle, by heat-absorbing material even application in steel strip surface, finally, steel
Band enters drying station, and steel band is heated into 120 DEG C, and steel band is dried so that heat-absorbing material sticks to steel strip surface to be formed
Heat-sink shell；
（3）Punching slab：The steel band that heat-sink shell will be formed with is sent to punching station by transfer roller, initially enters metering work
Section, steel band is sent to blanking equipment by metering roll according to certain length batch (-type) as requested, so as to be punched the plate of certain size
Base, also, it was additionally provided with buffer area before workshop section is measured so that the steel band of continuous transmission is not by the shadow of batch (-type) metering roll
Ring；
（4）Heating punching press：The slab of punching is sent to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, it is put into slab is single on pressing equipment, by slab electrified regulation, when heating of plate blank is to 730 DEG C, the suction of steel slab surface
Hot material starts to volatilize and/or rise Huawei's gas, and largely takes away the heat of steel slab surface so that steel slab surface is near coating area
The temperature in domain is less than 800 DEG C, and slab internal temperature continues to be heated to 930 DEG C so that slab inside complete austenitizing, so
Afterwards, power off, mould is descending, be the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches：Mould is kept into certain pressure under matched moulds state, and cooling medium is passed through in mould so that
Slab after heat stamping and shaping is quickly cooled down, and is cooled down with the cooling velocity more than 27 DEG C/S so that slab completes pressurize and quenches
Fire；
（6）Packaging and storage：The covering that pressurize is quenched is taken out with manipulator, is put into transfer roller, is set in transfer roller
There is cooling blower, covering is cooled to room temperature, then, be sent to detection workshop section, covering is detected, finally proceed to
Oiling packing department, is packed and is put in storage to covering.
In the present embodiment, in step（4）In, pressing equipment include punch press, mould 2, heater block 3, cooling-part with
And heat-absorbing material recovery part, heater block uses Electric heating, cooling-part include being arranged on the upper mould of mould and under
Circulating cooling path on mould, recovery part is arranged on mould top, and Huawei's gas heat absorption will be volatilized and/or risen by induced-draught fan
Material is collected and cools down recovery.
Its present embodiment, heat-absorbing material is fire-retardant heat-absorbing material, and the volatilization of heat-absorbing material and/or sublimation temperature are 730 DEG C.
Embodiment three：
In embodiment three, there is provided a kind of automobile panel heat stamping and shaping method, referring to Fig. 1-4, covering is using the warm of steel plate 1
Punch forming, steel plate 1 includes steel plate body 10 and coating 11, first before steel hot stamping shaping, in the surface spraying of steel plate 1
Heat-sink shell 12, the uniform fold of heat-sink shell 12 is on the coating 11.Comprise the following steps that：
（1）Coil of strip uncoiling：To be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, and coil of strip is opened
Volume, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell region by pinch roll；
（2）Spraying heat-sink shell：Steel band after uncoiling, cleaning and aligning is sent to spray station by pinch roll, first,
Under the transmission of pinch roll, steel band enters heating workshop section, and steel band is heated into 50 DEG C using the heating workshop section of spray station, secondly,
Steel band enters spraying workshop section, in the presence of upper and lower multiple nozzle, by heat-absorbing material even application in steel strip surface, finally, steel
Band enters drying station, and steel band is heated into 120 DEG C, and steel band is dried so that heat-absorbing material sticks to steel strip surface to be formed
Heat-sink shell；
（3）Punching slab：The steel band that heat-sink shell will be formed with is sent to punching station by transfer roller, initially enters metering work
Section, steel band is sent to blanking equipment by metering roll according to certain length batch (-type) as requested, so as to be punched the plate of certain size
Base, also, it was additionally provided with buffer area before workshop section is measured so that the steel band of continuous transmission is not by the shadow of batch (-type) metering roll
Ring；
（4）Heating punching press：The slab of punching is sent to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, it is put into slab is single on pressing equipment, by slab electrified regulation, when heating of plate blank is to 740 DEG C, the suction of steel slab surface
Hot material starts to volatilize and/or rise Huawei's gas, and largely takes away the heat of steel slab surface so that steel slab surface is near coating area
The temperature in domain is less than 800 DEG C, and slab internal temperature continues to be heated to 930 DEG C so that slab inside complete austenitizing, so
Afterwards, power off, mould is descending, be the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches：Mould is kept into certain pressure under matched moulds state, and cooling medium is passed through in mould so that
Slab after heat stamping and shaping is quickly cooled down, and is cooled down with the cooling velocity of 29 DEG C/S so that slab completes pressurize quenching；
（6）Packaging and storage：The covering that pressurize is quenched is taken out with manipulator, is put into transfer roller, is set in transfer roller
There is cooling blower, covering is cooled to room temperature, then, be sent to detection workshop section, covering is detected, finally proceed to
Oiling packing department, is packed and is put in storage to covering.
In the present embodiment, in step（4）In, pressing equipment include punch press, mould 2, heater block 3, cooling-part with
And heat-absorbing material recovery part, heater block uses Electric heating, cooling-part include being arranged on the upper mould of mould and under
Circulating cooling path on mould, recovery part is arranged on mould top, and Huawei's gas heat absorption will be volatilized and/or risen by induced-draught fan
Material is collected and cools down recovery.
Its present embodiment, heat-absorbing material is fire-retardant heat-absorbing material, and the volatilization of heat-absorbing material and/or sublimation temperature are 740 DEG C.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Claims (4)
1. automobile panel heat stamping and shaping method, the covering uses steel plate（1）Heat stamping and shaping, the steel plate includes steel
Plate body（10）And coating（11）, it is characterised in that in steel plate（1）Before heat stamping and shaping, in steel plate（1）Surface spraying absorbs heat
Layer（12）, the heat-sink shell（12）Uniform fold is in the coating（11）On.
2. automobile panel heat stamping and shaping method according to claim 1, it is characterised in that the automobile panel heat
Impact forming method is comprised the following steps that：
（1）Coil of strip uncoiling：To be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, and coil of strip is opened
Volume, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell region by pinch roll；
（2）Spraying heat-sink shell：Steel band after uncoiling, cleaning and aligning is sent to spray station by pinch roll, first,
Under the transmission of pinch roll, steel band enters heating workshop section, and steel band is heated into 40 DEG C -55 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, in the presence of upper and lower multiple nozzles, by heat-absorbing material even application in steel strip surface, most
Afterwards, steel band enters drying station, and steel band is heated into 110 DEG C -125 DEG C, steel band is dried so that heat-absorbing material sticks to steel band
Surface is forming heat-sink shell；
（3）Punching slab：The steel band that heat-sink shell will be formed with is sent to punching station by transfer roller, initially enters metering work
Section, steel band is sent to blanking equipment by metering roll according to certain length batch (-type) as requested, so as to be punched the plate of certain size
Base, also, it was additionally provided with buffer area before workshop section is measured so that the steel band of continuous transmission is not by the shadow of batch (-type) metering roll
Ring；
（4）Heating punching press：The slab of punching is sent to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, it is put into slab is single on pressing equipment, by slab electrified regulation, when heating of plate blank is to 700 DEG C -750 DEG C, slab table
The heat-absorbing material in face starts to volatilize and/or rise Huawei's gas, and largely takes away the heat of steel slab surface so that steel slab surface is close to
The temperature of cladding region is less than 800 DEG C, and slab internal temperature continues to be heated to 900 DEG C -950 DEG C so that slab inside is completely
Austenitizing, then, power-off, mould is descending, is the shape of covering by slab heat stamping and shaping；
（5）Pressurize quenches：Mould is kept into certain pressure under matched moulds state, and cooling medium is passed through in mould so that
Slab after heat stamping and shaping is quickly cooled down, and is cooled down with the cooling velocity more than 15 DEG C/S so that slab completes pressurize and quenches
Fire；
（6）Packaging and storage：The covering that pressurize is quenched is taken out with manipulator, is put into transfer roller, is set in transfer roller
There is cooling blower, covering is cooled to room temperature, then, be sent to detection workshop section, covering is detected, finally proceed to
Oiling packing department, is packed and is put in storage to covering.
3. automobile panel heat stamping and shaping method according to claim 2, it is characterised in that in step（4）In, it is described
Pressing equipment includes punch press, mould (2), heater block (3), cooling-part and heat-absorbing material recovery part, the heating part
Part uses Electric heating, and the cooling-part includes the circulating cooling being arranged on the upper mould (21) of mould and lower mould (22)
Path, the recovery part is arranged on mould top, Huawei's gas heat absorption material will be volatilized and/or risen by induced-draught fan and is collected simultaneously
Cooling is reclaimed.
4. automobile panel heat stamping and shaping method according to claim 3, it is characterised in that the heat-absorbing material is resistance
Hot material is burnt and sucked, the volatilization of the heat-absorbing material and/or sublimation temperature are 700 DEG C -800 DEG C.
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| CN201710008277.2A CN106734470B (en) | 2017-01-05 | 2017-01-05 | Automobile panel heat stamping and shaping method |
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