CN106734470B - Automobile panel heat stamping and shaping method - Google Patents
Automobile panel heat stamping and shaping method Download PDFInfo
- Publication number
- CN106734470B CN106734470B CN201710008277.2A CN201710008277A CN106734470B CN 106734470 B CN106734470 B CN 106734470B CN 201710008277 A CN201710008277 A CN 201710008277A CN 106734470 B CN106734470 B CN 106734470B
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- Prior art keywords
- heat
- slab
- steel
- stamping
- steel band
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Classifications
-
- 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
Abstract
The present 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 ontology and coating, before steel hot stamping molding, sprays heat-sink shell in surface of steel plate, 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）Spray heat-sink shell so that heat-absorbing material is adhered to steel strip surface to form heat-sink shell；（3）It is punched slab；4）Heat punching press：By the shape that slab heat stamping and shaping is covering；（5）Pressurize quenches.The technical issues of efficiently solving liquid metal embrittlement fracture caused by the melting Zn intrusion bottom steel plates that existing plated steel sheet heat stamping and shaping includes in coating in the heat treatment of hot pressing front spring, and make 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 methods.
Background technology
Drop stamping technology was put forward for the first time 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 development in more than 20 years, drop stamping vehicle body parts had 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, American Society of Mechanical Engineers
(ASME), the enterprises such as Daimler-Chrysler companies, species abundance in Baosteel in Shanghai, Chinese Tongji University have carried out related grind to scientific research institutions
Study carefully work.
Hot press-formed technique refers to：Material (superhigh intensity/high strength steel) is first heated to set point of temperature, heat preservation provides
Time is allowed to complete austenitizing, is then shaped by mould punching；Material pressurize in mold quenches while forming, cooling
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, plasticity is good, forming limit is high, is readily formed after heating, and reduces pair
The requirement of former and mold；(2) part strength made of super-high strength steel is very high, improves the shock resistance of vehicle body on the whole
With fatigue capability, to improve the safety of automobile；Simplify body structure and parts design, effectively reduces reinforcing plate number
Amount, realizes the target of body lightening.Therefore, hot press-formed parts are applied more and more extensive in the car, especially
Vehicle body support construction class part such as B columns, A columns, front/rear collision bumper, longitudinal load-bearing beam etc..
There are two kinds of approach for 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, so that tissue is obtained abundant austenitizing, be then transferred to punching press,
Then it is molded and quenches in closed molds.
Patent " manufacturing methods of hot press parts " (application number：2014800369512) it is excellent that a kind of corrosion resistance is referred in
The manufacturing method of different hot press parts, and a kind of liquid gold that not will produce caused by the zinc intrusion steel plate in coating is provided
Belong to brittle fracture, the excellent hot press parts of resistance to liquid metal embrittlement manufacturing methods.The manufacturing 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 coating that the plated steel sheet has bottom steel plate and is formed in the bottom steel plate, coating contain 10 matter of mass %~25
The Ni of % is measured, remaining part is made of Zn and inevitable impurity, and the adhesion amount on single surface is 10g/m2~90g/m2.Although
The patented technology can inhibit the melting Zn intrusion bottom steel plates for including in coating in the heat treatment of hot pressing front spring and cause
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, in this way will be so that steel plate from complete quenching hardening, causes the mechanical strength of product that cannot reach most
It is excellent, it is based on this, the present inventor proposes a kind of automobile panel heat stamping and shaping method to solve above-mentioned technical problem.
Invention content
The present invention provides a kind of automobile panel heat stamping and shaping methods, efficiently solve existing plated steel sheet heat punching
Liquid metal caused by the molded melting Zn intrusion bottom steel plates for including in coating in the heat treatment of hot pressing front spring
The technical issues of brittle fracture, and make 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 present 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 ontology and coating, before steel hot stamping molding, 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 as follows：
(1) coil of strip uncoiling：It will be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, by steel
It winds off, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell area by pinch roller
Domain；
(2) heat-sink shell is sprayed：Steel band after uncoiling, cleaning and aligning is transmitted to spray station by pinch roller, it is first
First, under the transmission of pinch roller, steel band enter heating workshop section, using spray station heating workshop section by steel band be heated to 40 DEG C-
55 DEG C, secondly, steel band enters spraying workshop section, under the action of upper and lower multiple nozzles, by heat-absorbing material even application in steel band table
Face, finally, steel band enter drying station, and steel band is heated to 110 DEG C -125 DEG C, steel band is dried so that heat-absorbing material adheres to
In steel strip surface to form heat-sink shell；
(3) it is punched slab：The steel band for being formed with heat-sink shell is transmitted to punching station by transfer roller, initially enters meter
Measure workshop section, metering roll according to require by steel band according to certain length it is intermittent be sent to blanking equipment, to be punched certain size
Slab, also, be additionally provided with buffer area before measuring workshop section so that the steel band continuously transmitted is not by intermittent metering roll
Influence；
(4) punching press is heated：The slab of punching is transmitted to heating punching press workshop section by transfer roller, in the sucker of manipulator
Under effect, by slab being put on stamping equipment individually, by slab electrified regulation, when heating of plate blank is to 700 DEG C -750 DEG C, plate
It is gas that the heat-absorbing material on base surface, which starts to volatilize and/or distil, and largely takes away the heat of steel slab surface so that steel slab surface
Temperature close to 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 inside slab
Complete austenitizing, then, power-off, mold downlink, by the shape that slab heat stamping and shaping is covering；
(5) pressurize quenches：Mold is kept into certain pressure under molding state, and is passed through cooling medium in mold,
So that the slab after heat stamping and shaping is quickly cooled down, the cooling velocity to be more than 15 DEG C/S is cooled down so that slab is completed to protect
Pressure quenching；
(6) packaging and storage：The covering that pressurize quenches is taken out with manipulator, transfer roller is put into, in transfer roller
It is provided with cooling blower, covering is cooled to room temperature, then, detection workshop section is transmitted to, covering is detected, is finally passed
It is sent to oiling packing department, covering is packed and is put in storage.
Wherein, in step (4), the stamping equipment includes punching machine, mold, heating element, cooling-part and heat absorption
Material recovery component, the heating element use Electric heating, the cooling-part include be arranged mold upper mold and
Circulating cooling access in lower die, the recovery part are arranged above mold, will be volatilized by suction ventilator and/or distillation is gas
Body heat-absorbing material is collected and cools down recycling.
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 solution provided by the present application, has at least the following technical effects or advantages：
The core scheme of the application is as follows：
Before steel hot stamping molding, heat-sink shell is sprayed in surface of steel plate, the heat-sink shell uniform fold is in the plating
On layer, the core procedure of automobile panel heat stamping and shaping method is as follows：
(1) coil of strip uncoiling；
(2) heat-sink shell is sprayed：Steel band after uncoiling, cleaning and aligning is transmitted to spray station by pinch roller, it is first
First, under the transmission of pinch roller, steel band enter heating workshop section, using spray station heating workshop section by steel band be heated to 40 DEG C-
55 DEG C, secondly, steel band enters spraying workshop section, under the action of upper and lower multiple nozzles, by heat-absorbing material even application in steel band table
Face, finally, steel band enter drying station, and steel band is heated to 110 DEG C -125 DEG C, steel band is dried so that heat-absorbing material adheres to
In steel strip surface to form heat-sink shell；
(3) it is punched slab；
(4) punching press is heated：The slab of punching is transmitted to heating punching press workshop section by transfer roller, in the sucker of manipulator
Under effect, by slab being put on stamping equipment individually, by slab electrified regulation, when heating of plate blank is to 700 DEG C -750 DEG C, plate
It is gas that the heat-absorbing material on base surface, which starts to volatilize and/or distil, and largely takes away the heat of steel slab surface so that steel slab surface
Temperature close to 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 inside slab
Complete austenitizing, then, power-off, mold downlink, by the shape that slab heat stamping and shaping is covering；
(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
Heat treatment when coating in include melting Zn intrusion bottom steel plate caused by liquid metal embrittlement fracture the technical issues of,
Also, since in drop stamping quenching process, steel plate internal temperature is in austenitizing temperature, and steel plate is enabled to quench completely
Hardening so that the mechanical strength of product is optimal, also, in drop stamping, without waiting for temperature fall time, accelerates production effect
Rate.
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 light plate hot stamping forming die of the embodiment of the present invention；
In figure, 1 steel plate, 10 steel plate ontologies, 11 coating, 12 heat-sink shells, 2 molds, 21 upper molds, 22 lower dies, 3 heating elements.
Specific implementation mode
Technical solution in present embodiment is to solve above-mentioned technical problem.General thought is as follows：
A kind of automobile panel heat stamping and shaping method is provided, covering includes using 1 heat stamping and shaping of steel plate, steel plate
Steel plate ontology 10 and coating 11, before steel hot stamping molding, in 1 surface spraying heat-sink shell 12 of steel plate, heat-sink shell uniformly covers
It covers on the coating.
The key step of automobile panel heat stamping and shaping method is as follows：
(1) coil of strip uncoiling；
(2) heat-sink shell is sprayed so that heat-absorbing material is adhered to steel strip surface to form heat-sink shell；
(3) it is punched slab, steel band is sent to blanking equipment according to certain length, to be punched the slab of certain size；
(4) punching press is heated, by the shape that slab heat stamping and shaping is covering；
(5) pressurize quenches, and the slab after heat stamping and shaping is made to be quickly cooled down, and the cooling velocity to be more than 15 DEG C/S carries out cold
But so that slab completes pressurize quenching；
(6) packaging and storage.
Embodiment one：
In embodiment one, a kind of automobile panel heat stamping and shaping method is provided, referring to Fig. 1-4, covering uses
1 heat stamping and shaping of steel plate, steel plate 1 includes steel plate ontology 10 and coating 11, first before steel hot stamping molding, in steel plate 1
Surface spraying heat-sink shell 12,12 uniform fold of heat-sink shell is on the coating 11.It is as follows：
(1) coil of strip uncoiling：It will be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, by steel
It winds off, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell area by pinch roller
Domain；
(2) heat-sink shell is sprayed：Steel band after uncoiling, cleaning and aligning is transmitted to spray station by pinch roller, it is first
First, under the transmission of pinch roller, steel band enters heating workshop section, and steel band is heated to 45 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, under the action 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 to 115 DEG C, steel band is dried so that heat-absorbing material be adhered to steel strip surface with
Form heat-sink shell；
(3) it is punched slab：The steel band for being formed with heat-sink shell is transmitted to punching station by transfer roller, initially enters meter
Measure workshop section, metering roll according to require by steel band according to certain length it is intermittent be sent to blanking equipment, to be punched certain size
Slab, also, be additionally provided with buffer area before measuring workshop section so that the steel band continuously transmitted is not by intermittent metering roll
Influence；
(4) punching press is heated：The slab of punching is transmitted to heating punching press workshop section by transfer roller, in the sucker of manipulator
Under effect, by slab being put on stamping equipment individually, by slab electrified regulation, when heating of plate blank is to 720 DEG C, steel slab surface
Heat-absorbing material to start to volatilize and/or distil be gas, and largely take away the heat of steel slab surface so that steel slab surface is close to plating
The temperature of layer region is less than 800 DEG C, and slab internal temperature continues to be heated to 920 DEG C so that complete austenitizing inside slab,
Then, it powers off, mold downlink, by the shape that slab heat stamping and shaping is covering；
(5) pressurize quenches：Mold is kept into certain pressure under molding state, and is passed through cooling medium in mold,
So that the slab after heat stamping and shaping is quickly cooled down, the cooling velocity to be more than 25 DEG C/S is cooled down so that slab is completed to protect
Pressure quenching；
(6) packaging and storage：The covering that pressurize quenches is taken out with manipulator, transfer roller is put into, in transfer roller
It is provided with cooling blower, covering is cooled to room temperature, then, detection workshop section is transmitted to, covering is detected, is finally passed
It is sent to oiling packing department, covering is packed and is put in storage.
In the present embodiment, in step (4), stamping equipment include punching machine, mold 2, heating element 3, cooling-part with
And heat-absorbing material recovery part, heating element use Electric heating, cooling-part include be arranged mold upper mold and under
Circulating cooling access on mould, recovery part are arranged above mold, will be volatilized by suction ventilator and/or distillation is gas heat absorption
Material is collected and cools down recycling.
The present embodiment, heat-absorbing material are 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, a kind of automobile panel heat stamping and shaping method is provided, referring to Fig. 1-4, covering uses steel
1 heat stamping and shaping of plate, steel plate 1 includes steel plate ontology 10 and coating 11, first before steel hot stamping molding, in 1 table of steel plate
Face sprays heat-sink shell 12, and 12 uniform fold of heat-sink shell is on the coating 11.It is as follows：
(1) coil of strip uncoiling：It will be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, by steel
It winds off, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell area by pinch roller
Domain；
(2) heat-sink shell is sprayed：Steel band after uncoiling, cleaning and aligning is transmitted to spray station by pinch roller, it is first
First, under the transmission of pinch roller, steel band enters heating workshop section, and steel band is heated to 50 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, under the action 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 to 120 DEG C, steel band is dried so that heat-absorbing material be adhered to steel strip surface with
Form heat-sink shell；
(3) it is punched slab：The steel band for being formed with heat-sink shell is transmitted to punching station by transfer roller, initially enters meter
Measure workshop section, metering roll according to require by steel band according to certain length it is intermittent be sent to blanking equipment, to be punched certain size
Slab, also, be additionally provided with buffer area before measuring workshop section so that the steel band continuously transmitted is not by intermittent metering roll
Influence；
(4) punching press is heated：The slab of punching is transmitted to heating punching press workshop section by transfer roller, in the sucker of manipulator
Under effect, by slab being put on stamping equipment individually, by slab electrified regulation, when heating of plate blank is to 730 DEG C, steel slab surface
Heat-absorbing material to start to volatilize and/or distil be gas, and largely take away the heat of steel slab surface so that steel slab surface is close to plating
The temperature of layer region is less than 800 DEG C, and slab internal temperature continues to be heated to 930 DEG C so that complete austenitizing inside slab,
Then, it powers off, mold downlink, by the shape that slab heat stamping and shaping is covering；
(5) pressurize quenches：Mold is kept into certain pressure under molding state, and is passed through cooling medium in mold,
So that the slab after heat stamping and shaping is quickly cooled down, the cooling velocity to be more than 27 DEG C/S is cooled down so that slab is completed to protect
Pressure quenching；
(6) packaging and storage：The covering that pressurize quenches is taken out with manipulator, transfer roller is put into, in transfer roller
It is provided with cooling blower, covering is cooled to room temperature, then, detection workshop section is transmitted to, covering is detected, is finally passed
It is sent to oiling packing department, covering is packed and is put in storage.
In the present embodiment, in step (4), stamping equipment include punching machine, mold 2, heating element 3, cooling-part with
And heat-absorbing material recovery part, heating element use Electric heating, cooling-part include be arranged mold upper mold and under
Circulating cooling access on mould, recovery part are arranged above mold, will be volatilized by suction ventilator and/or distillation is gas heat absorption
Material is collected and cools down recycling.
The present embodiment, heat-absorbing material are 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, a kind of automobile panel heat stamping and shaping method is provided, referring to Fig. 1-4, covering uses steel
1 heat stamping and shaping of plate, steel plate 1 includes steel plate ontology 10 and coating 11, first before steel hot stamping molding, in 1 table of steel plate
Face sprays heat-sink shell 12, and 12 uniform fold of heat-sink shell is on the coating 11.It is as follows：
(1) coil of strip uncoiling：It will be mounted on uncoiler using traveling crane with coated coil of strip, uncoiling motor starts, by steel
It winds off, the steel band after coil of strip uncoiling enters washing station, leveling station, then enters spraying heat-sink shell area by pinch roller
Domain；
(2) heat-sink shell is sprayed：Steel band after uncoiling, cleaning and aligning is transmitted to spray station by pinch roller, it is first
First, under the transmission of pinch roller, steel band enters heating workshop section, and steel band is heated to 50 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, under the action 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 to 120 DEG C, steel band is dried so that heat-absorbing material be adhered to steel strip surface with
Form heat-sink shell；
(3) it is punched slab：The steel band for being formed with heat-sink shell is transmitted to punching station by transfer roller, initially enters meter
Measure workshop section, metering roll according to require by steel band according to certain length it is intermittent be sent to blanking equipment, to be punched certain size
Slab, also, be additionally provided with buffer area before measuring workshop section so that the steel band continuously transmitted is not by intermittent metering roll
Influence；
(4) punching press is heated：The slab of punching is transmitted to heating punching press workshop section by transfer roller, in the sucker of manipulator
Under effect, by slab being put on stamping equipment individually, by slab electrified regulation, when heating of plate blank is to 740 DEG C, steel slab surface
Heat-absorbing material to start to volatilize and/or distil be gas, and largely take away the heat of steel slab surface so that steel slab surface is close to plating
The temperature of layer region is less than 800 DEG C, and slab internal temperature continues to be heated to 930 DEG C so that complete austenitizing inside slab,
Then, it powers off, mold downlink, by the shape that slab heat stamping and shaping is covering；
(5) pressurize quenches：Mold is kept into certain pressure under molding state, and is passed through cooling medium in mold,
So that the slab after heat stamping and shaping is quickly cooled down, cooled down with the cooling velocity of 29 DEG C/S so that slab completes pressurize and quenches
Fire；
(6) packaging and storage：The covering that pressurize quenches is taken out with manipulator, transfer roller is put into, in transfer roller
It is provided with cooling blower, covering is cooled to room temperature, then, detection workshop section is transmitted to, covering is detected, is finally passed
It is sent to oiling packing department, covering is packed and is put in storage.
In the present embodiment, in step (4), stamping equipment include punching machine, mold 2, heating element 3, cooling-part with
And heat-absorbing material recovery part, heating element use Electric heating, cooling-part include be arranged mold upper mold and under
Circulating cooling access on mould, recovery part are arranged above mold, will be volatilized by suction ventilator and/or distillation is gas heat absorption
Material is collected and cools down recycling.
The present embodiment, heat-absorbing material are fire-retardant heat-absorbing material, and the volatilization of heat-absorbing material and/or sublimation temperature are 740 DEG C.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of 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 include steel
Plate ontology（10）And coating（11）, which is characterized 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, which is characterized in that the automobile panel heat
Impact forming method is as follows：
（1）Coil of strip uncoiling：It will 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 enter washing station, leveling station, then enter spraying heat absorption layer region by pinch roller；
（2）Spray heat-sink shell：Steel band after uncoiling, cleaning and aligning is transmitted to spray station by pinch roller, first,
Under the transmission of pinch roller, steel band enters heating workshop section, and steel band is heated to 40 DEG C -55 DEG C using the heating workshop section of spray station,
Secondly, steel band enters spraying workshop section, under the action 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 to 110 DEG C -125 DEG C, steel band is dried so that heat-absorbing material is adhered to steel band
Surface is to form heat-sink shell；
（3）It is punched slab：The steel band for being formed with heat-sink shell is transmitted to punching station by transfer roller, initially enters metering work
Section, metering roll according to require by steel band according to certain length it is intermittent be sent to blanking equipment, to be punched the plate of certain size
Base, also, it is additionally provided with buffer area before measuring workshop section so that the steel band continuously transmitted is not by the shadow of intermittent metering roll
It rings；
（4）Heat punching press：The slab of punching is transmitted to heating punching press workshop section by transfer roller, is acted in the sucker of manipulator
Under, by slab being put on stamping equipment individually, by slab electrified regulation, when heating of plate blank is to 700 DEG C -750 DEG C, slab table
It is gas that the heat-absorbing material in face, which starts to volatilize and/or distil, and largely takes away the heat of steel slab surface so that steel slab surface is close
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 inside slab completely
Austenitizing, then, power-off, mold downlink, by the shape that slab heat stamping and shaping is covering；
（5）Pressurize quenches：Mold is kept into certain pressure under molding state, and is passed through cooling medium in mold so that
Slab after heat stamping and shaping is quickly cooled down, and the cooling velocity to be more than 15 DEG C/S is cooled down so that slab completes pressurize and quenches
Fire；
（6）Packaging and storage：The covering that pressurize quenches is taken out with manipulator, transfer roller is put into, is arranged in transfer roller
There is cooling blower, covering is cooled to room temperature, then, is transmitted to detection workshop section, covering is detected, is finally proceeded to
Oiling packing department, packs covering and is put in storage.
3. automobile panel heat stamping and shaping method according to claim 2, which is characterized in that in step（4）In, it is described
Stamping equipment includes punching machine, mold (2), heating element (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 in the upper mold (21) and lower die (22) of mold
Access, the recovery part are arranged above mold, will be volatilized by suction ventilator and/or distillation is that gas heat absorption material is collected simultaneously
Cooling recycling.
4. automobile panel heat stamping and shaping method according to claim 3, which is characterized 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108015144B (en) * | 2017-01-16 | 2019-03-08 | 上海俊黔防护设备有限公司 | Galvanized steel plain sheet heat stamping and shaping equipment |
| WO2018232451A1 (en) * | 2017-06-20 | 2018-12-27 | Commonwealth Scientific And Industrial Research Organisation | Process for forming wrought structures using cold spray |
| EP3437750A1 (en) * | 2017-08-02 | 2019-02-06 | Autotech Engineering A.I.E. | Press method for coated steels |
| CN109518114A (en) * | 2018-08-08 | 2019-03-26 | 宝山钢铁股份有限公司 | The manufacturing method and hot stamping part of hot stamping part with alusil alloy coating |
| CN109047522B (en) * | 2018-08-22 | 2020-04-07 | 上海博汇模具有限公司 | Method for adjusting flow velocity uniformity of profile of hot forming die |
| CN110039313B (en) * | 2019-05-24 | 2024-03-29 | 东营哈东工业技术研究院有限责任公司 | Energy-saving step-by-step forming equipment and process for hot-formed steel parts |
| CN113275469B (en) * | 2021-05-26 | 2022-07-12 | 苏州普热斯勒先进成型技术有限公司 | Hot stamping forming method |
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| CN1829813A (en) * | 2003-05-28 | 2006-09-06 | 住友金属工业株式会社 | Method for hot forming and hot formed member |
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