CN110497154A - The processing method of braking automobile cushion block - Google Patents

The processing method of braking automobile cushion block Download PDF

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Publication number
CN110497154A
CN110497154A CN201910808722.2A CN201910808722A CN110497154A CN 110497154 A CN110497154 A CN 110497154A CN 201910808722 A CN201910808722 A CN 201910808722A CN 110497154 A CN110497154 A CN 110497154A
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Prior art keywords
finish
raw material
die
water
forging
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Granted
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CN201910808722.2A
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Chinese (zh)
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CN110497154B (en
Inventor
项康
张学田
葛灵波
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Zhejiang Tongxing Metal Forging Co Ltd
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Zhejiang Tongxing Metal Forging Co Ltd
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Priority to CN201910808722.2A priority Critical patent/CN110497154B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12Light metals
    • C23G1/125Light metals aluminium
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/22Light metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/50Other automobile vehicle parts, i.e. manufactured in assembly lines

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Forging (AREA)

Abstract

The present invention provides a kind of processing method of braking automobile cushion block, including blanking, deburring, preheating, jumping-up, heating, bending, heating, blocking, alkali cleaning pickling, polishing, heating, finish-forging, trimming, solution treatment, ageing treatment, vibro-grinding, alkali cleaning pickling, ball blasts.It carries out carrying out bending again after jumping-up, so that the shape of raw material and the mold cavity shapes of Preform Die are more close, when carrying out blocking processing, raw material inside Preform Die only needs to deform lesser amplitude to surrounding and can be full of the die cavity of Preform Die, improves the processing efficiency of blocking to a certain extent.The forming process of product is divided into two parts of blocking and finish-forging, the more careful product of surface characteristics can be molded.Solution treatment and ageing treatment are carried out to product after finish-forging terminates, enable product hardness with higher, higher tensile strength and higher yield strength.

Description

The processing method of braking automobile cushion block
Technical field
The present invention relates to braking automobile technical fields, particularly, are related to a kind of processing method of braking automobile cushion block.
Background technique
With the progress of science and technology, this walking-replacing tool of automobile progresses into every household, and consumer is to vapour The quality requirement of vehicle and security requirement are also gradually increased.Brake gear is the weight of safety as the brake apparatus on automobile Want one of ensuring equipment.Brake gear, will be in vehicle traveling process mainly by the friction between brake block and brake block disk Kinetic energy be converted to thermal energy, and finally the thermal energy consumption of generation is fallen.Existing brake gear generally passes through brake cushion block and vapour The vehicle body of vehicle connects, due to the Special use environment for the cushion block that brakes, it is desirable that brake cushion block hardness with higher, higher tension Intensity and higher yield strength.But in view of the limitation of metal material, how to meet above-mentioned requirements, and with most simplified Process processes the brake caliper of automobile, becomes more important, and problem in urgent need to solve.
Summary of the invention
In view of this, it is an object of the present invention to provide a kind of processing method of braking automobile cushion block, with what is produced Braking automobile cushion block hardness is higher, and tensile strength is higher, the higher advantage of yield strength.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of processing method of braking automobile cushion block, packet Include following steps:
Step 1: blanking cuts raw material using band mill;
Step 2: deburring is handled using burr and acute angle of the polishing machine to raw material surface;
Step 3: raw material is put into the resistance furnace for being 415-435 degrees Celsius to temperature and heats 90 minutes or more, makes by preheating The ductility for obtaining raw material increases;
Step 4: jumping-up squeezes raw material using press machine, so that the height of raw material reduces, and cross section increases;
Step 5: raw material is placed into 415-435 degrees Celsius of resistance furnace and heats 90 minutes or more by heating, so that raw material Ductility increases;
Step 6: bending pushes the middle part of embryo material using press machine, so that embryo material is bent;
Step 7: raw material is placed into the resistance furnace that temperature is 415-435 degrees Celsius and heats 90 minutes or more by heating, so that The ductility of raw material increases;
Step 8: raw material is placed into Preform Die by blocking, Preform Die is squeezed using press machine later, so that blocker Material extruding in tool is deformed into semi-finished product;
Step 9: alkali cleaning pickling, the buck using pH value greater than 11 are corroded 30-90 seconds, are then rinsed using clear water, then used Sour water of the pH value less than 4 corrodes 30-90 seconds, is rinsed later using room temperature clear water, the heat for the use of water temperature being finally 60-80 degrees Celsius Water rinsing;
Step 10: polishing carries out grinding process using pit of the electrical grinding machine to the surface of semi-finished product, so that the surface of semi-finished product becomes It obtains relatively smooth, smooth;
Step 11: semi-finished product are placed into the resistance furnace that temperature is 415-435 degree and heat 90 minutes or more by heating, so that The ductility of semi-finished product increases;
Step 12: semi-finished product are placed into finish-forging die by finish-forging, squeeze finish-forging die using press machine later, so that eventually Semi-finished product in forging mould are squeezed and deformed into finished product;
Step 13: trimming, using punching machine by the cutting burrs at finished product edge;
Step 14: solution treatment places products into the solid smelting furnace that temperature is 525-535 degrees Celsius and keeps the temperature 90 minutes;
Step 15: ageing treatment places products into the aging furnace that aging temp is 165-175 degree and keeps the temperature 660 minutes;
Step 10 six: vibro-grinding is ground product using oscillating mill, and control time of vibration is 25 minutes;
Step 10 seven: alkali cleaning pickling, the first buck using pH value greater than 11 are corroded 30-90 seconds, and the clear water of room temperature is then used Rinsing, then the sour water using pH value less than 4 corrodes 30-90 seconds, is rinsed later using the clear water of room temperature, is finally using water temperature The hot water of 50-90 degree rinses;
Step 10 eight: ball blast carries out roll cast using Caterpillar type shot blasting machine, and the control ball blast time is 7 minutes.
Through the above technical solutions, needing for be put into forge die raw material, passing through later when carrying out forging and stamping production Press machine squeezes forge die, so that the raw material of mould inside deforms and is full of the die cavity of forge die.Carry out blocking it Before, jumping-up first is carried out to raw material, bending is carried out to raw material again later, so that the mold cavity shapes of the shape of raw material and Preform Die are more Be it is close, in this way when carrying out blocking processing, the raw material inside Preform Die only needs to deform lesser amplitude to surrounding The die cavity of Preform Die can be full of, improve the processing efficiency of blocking to a certain extent.The forming process of product is divided into Two parts of blocking and finish-forging, can mold the more careful product of surface characteristics.Product is carried out after finish-forging terminates Solution treatment and ageing treatment, enable product hardness with higher, and its hardness can reach 100 Brinell hardness, produce Product can tensile strength with higher, and its tensile strength can reach 345 megapascal, product can surrender with higher it is strong Degree, and its yield strength can reach 315 megapascal.Product needs to undergo two processes of alkali cleaning and pickling, so that the table of product The oxide skin and erosion in face can obtain more adequately removing.
Preferably, the raw material selected in the step 1 is aluminium alloy, and the mass ratio of the al alloy component are as follows: Si: 0.9-1.2%, Fe≤0.3%, Cu≤0.1%, Mn:0.55-0.7%, Mg:0.7-1.0%, Cr≤0.13-0.18%, Zn≤0.1%, Ti≤0.06%, surplus Al.
Through the above technical solutions, the aluminium alloy of so ingredient can be just with higher physical before undressed Can, and its hardness, tensile strength and yield strength that can reach needs after completing the process.
Preferably, step 10 nine is additionally provided between the step 14 and the step 15: after solution treatment Finished product is placed into normal-temperature water 5-10 minutes cooling.
Through the above technical solutions, the second phase in aluminium alloy is gradually incorporated into solid solution during solution treatment. And later using normal-temperature water carry out it is cooling be able to suppress the second phase and be precipitated again, obtain more pure solid solution phase body.
Preferably, it is additionally provided with step 2 ten between the step 12 and the step 13: finish-forging die is carried out Intermittent heating.
Through the above technical solutions, during product is cooling, since product has certain thickness, so in product During being gradually cooling to room temperature, surface can obtain more quickly cooling down, and then be unable to get inside it more fast The cooling of speed.In order to solve this problem, so carrying out intermittent heating during finish-forging die is cooling.In the table of product When difference between face temperature and product internal temperature is larger, the surface of product is heated, so that the surface temperature of product Difference between product internal temperature reduces, with this guarantee that the surface of product and the inside of product can be more synchronous it is cold But, and product after cooling, can have more outstanding physical property.
Preferably, in the step 2 ten, when interval of first time heating process and second of heating process a length of t1, the A length of t2 when the interval of secondary heating process and third time heating process, between third time heating process and the 4th heating process Every when a length of t3, and so on, when interval of n-th heating process and (n-1)th heating process a length of tn, t1 < t2 < t3 < ... < tn。
Through the above technical solutions, the temperature of product is higher, between external environment when product just completes finish-forging The temperature difference is larger, and heat transfer is more quick, so needing heating product by the shorter time, with cooling time Growth, the temperature difference between product and external environment reduces, and the speed of heat transfer reduces at this time, thus the interval time of heating by It is cumulative to add.
Preferably, sliding slot is provided in finish-forging die, sliding slot connection is in the die cavity of finish-forging die, the connection of sliding slot interior slip There is cooling column, be provided with cooling duct in cooling column, the both ends of cooling duct are through the side wall of cooling column, and cooling duct Both ends be respectively water inlet end and water outlet, cooling column is connected with driving element on the end far from finish-forging die die cavity, drive Dynamic element is used to that cooling column to be driven to be slided, and coolant flow channel one and coolant flow channel two are offered on the side wall of finish-forging die, Coolant flow channel one runs through the inner wall of sliding slot and is used to run through the side wall of sliding slot with water inlet end connection, coolant flow channel two and be used for and go out Water end (W.E.) connection.
Through the above technical solutions, it is mobile to finish-forging to control cooling column by driving element during carrying out finish-forging The die cavity side of mold, until coolant flow channel one and water inlet connection, coolant flow channel two and water outlet connection.Later, pass through water The tools such as pump control cooling water is entered from coolant flow channel one to flow out in cooling duct and finally from coolant flow channel two.It stretches to Cooling column in the die cavity of finish-forging die can stretch in product during finish-forging, the cooling water energy flowed through from cooling column It is enough that the center of product is cooled down, so that the cooling velocity of product surface and the cooling velocity of product center are closer to.In When the center of product obtains a degree of cooling, it can control cooling column and store into finish-forging die, continue to squeeze eventually later Forging mould, so that the product inside finish-forging die continues to deform and cooling column is formed by groove to fill up.
Preferably, limiting slot is offered at sliding slot inner wall, cooling column is arranged limited on the end far from finish-forging die die cavity Position block, the limited block sliding are connected to inside the limiting slot.
Through the above technical solutions, the cooperation of limiting slot and limited block can the limit sliding distance to cooling column limit System, so that cooling column can not entirely enter in the die cavity of finish-forging die, and it is cold in coolant flow channel one and coolant flow channel two But water is not easily accessible in the die cavity of finish-forging die.
Preferably, mobile to the die cavity side of finish-forging die under the action of driving element when cooling column, and limited block supports It touches when cell wall of the limiting slot close to finish-forging die die cavity side, one connection of coolant flow channel is in water inlet end, two connection of coolant flow channel In water outlet;When cooling column is mobile to the die cavity side far from finish-forging die under the action of driving element, and limited block and limit When position slot is close to the cell wall separation of finish-forging die die cavity, the connection between coolant flow channel one and water inlet end is gradually turned off, cooling stream Connection between road two and water outlet is gradually turned off.
Through the above technical solutions, when limiting slot is contradicted close to the cell wall and limited block of finish-forging die die cavity, cooling stream Road one and the complete connection of water inlet end, coolant flow channel two and the complete connection in water outlet, cooling column can play maximum cooling at this time Effect.Meanwhile the cooling column of such setting is more convenient when in use, it is only necessary to control cooling column by driving element and be moved to Extreme position.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of braking automobile cushion block, is mainly used for showing the shape of braking automobile cushion block;
Fig. 2 is the schematic cross-sectional view of finish-forging die, for showing that cooling column is stored to the state of finish-forging die;
Fig. 3 is the schematic cross-sectional view of finish-forging die, for showing that cooling column is protruding to the state of finish-forging die die cavity;.
Appended drawing reference: 1, sliding slot;2, die cavity;3, cooling column;4, cooling duct;41, water inlet end;42, water outlet;5, it drives Element;6, coolant flow channel one;7, coolant flow channel two;8, limiting slot;9, limited block.
Specific embodiment
Below in conjunction with attached drawing, a specific embodiment of the invention is described in further detail, so that technical solution of the present invention is more It should be readily appreciated that and grasp.
A kind of processing method of braking automobile cushion block, the processing method including braking automobile cushion block include the following steps:
Step 1: bar is cut into the raw material of section shape using band mill by blanking, and the bar selected is aluminium alloy, and The mass ratio of the al alloy component are as follows: Si:0.9-1.2%, Fe≤0.3%, Cu≤0.1%, Mn:0.55-0.7%, Mg0.7- 1.0%, Cr≤0.13-0.18%, Zn≤0.1%, Ti≤0.06%, surplus Al;
Step 2: deburring is handled using burr and acute angle of the polishing machine to raw material surface, so that the surface of raw material becomes Must be relatively smooth, in this way when carrying out subsequent processing, it is not easy to scratch user;
Step 3: raw material is put into the resistance furnace for being 415-435 degrees Celsius to temperature and heats 90 minutes or more, makes by preheating The ductility for obtaining raw material increases, and user more convenient in subsequent operation can deform material extruding;
Step 4: jumping-up squeezes raw material using press machine, so that the height of raw material reduces, and cross section increases;
Step 5: raw material is placed into 415-435 degrees Celsius of resistance furnace and heats 90 minutes or more by heating, so that raw material Ductility increases, and user more convenient in subsequent operation can deform material extruding;
Step 6: bending pushes the middle part of embryo material using press machine, so that embryo material is bent;
Step 7: raw material is placed into the resistance furnace that temperature is 415-435 degrees Celsius and heats 90 minutes or more by heating, so that The ductility of raw material increases, and user more convenient in subsequent operation can deform material extruding;
Step 8: raw material is placed into Preform Die by blocking, Preform Die is squeezed using press machine later, so that blocker Material extruding in tool is deformed into semi-finished product;
Step 9: alkali cleaning pickling, the buck using pH value greater than 11 are corroded 30-90 seconds, are then rinsed using clear water, then used Sour water of the pH value less than 4 corrodes 30-90 seconds, is rinsed later using room temperature clear water, the heat for the use of water temperature being finally 60-80 degrees Celsius Water rinsing;
Step 10: polishing carries out grinding process using pit of the electrical grinding machine to the surface of semi-finished product, so that the surface of semi-finished product becomes It obtains relatively smooth, smooth;
Step 11: semi-finished product are placed into the resistance furnace that temperature is 415-435 degree and heat 90 minutes or more by heating, so that The ductility of semi-finished product increases, and user more convenient in subsequent operation can deform material extruding;
Step 12: semi-finished product are placed into finish-forging die by finish-forging, squeeze finish-forging die using press machine later, so that eventually Semi-finished product in forging mould are squeezed and deformed into finished product;
Step 2 ten: intermittent heating is carried out to finish-forging die, if the interval of first time heating process and second of heating process A length of t2 when the interval of Shi Changwei t1, second of heating process and third time heating process, third time heating process with the 4th time A length of t3 when the interval of heating process, and so on, when interval of n-th heating process and (n-1)th heating process a length of tn, Then t1 < t2 < t3 < ... < tn;
Step 13: trimming, using punching machine by the cutting burrs at finished product edge,;
Step 14: solution treatment places products into the solid smelting furnace that temperature is 525-535 degrees Celsius and keeps the temperature 90 minutes;
Step 10 nine: the finished product after solution treatment is placed into normal-temperature water 5-10 minutes cooling;
Step 15: ageing treatment places products into the aging furnace that aging temp is 165-175 degree and keeps the temperature 660 minutes;
Step 10 six: vibro-grinding is ground product using oscillating mill, and control time of vibration is 25 minutes;
Step 10 seven: alkali cleaning pickling, the first buck using pH value greater than 11 are corroded 30-90 seconds, and the clear water of room temperature is then used Rinsing, then the sour water using pH value less than 4 corrodes 30-90 seconds, is rinsed later using the clear water of room temperature, is finally using water temperature The hot water of 50-90 degree rinses;
Step 10 eight: ball blast carries out roll cast using Caterpillar type shot blasting machine, and the control ball blast time is 7 minutes.
As shown in Figure 1, Figure 2, Figure 3 shows, sliding slot 1, the extending direction of sliding slot 1 and opening for finish-forging die are provided in finish-forging die Mould direction is identical, and the notch connection of sliding slot 1 offers limiting slot 8, limiting slot at the die cavity 2 of finish-forging die, the inner wall of sliding slot 1 8 extending direction is identical as the extending direction of sliding slot 1.1 interior slip of sliding slot is connected with cooling column 3, the side wall and cunning of cooling column 3 The inner wall of slot 1 contradicts, and cooling column 3 is internally provided with cooling duct 4, and radial direction of the both ends of cooling duct 4 along cooling column 3 is passed through It is through at the side wall of cooling column 3, and the both ends of cooling duct 4 are respectively water inlet end 41 and water outlet 42.Cooling column 3 deviates from finish-forging Limited block 9 is provided on the end of mould cavity 2, limited block 9 stretches to 8 inside of limiting slot and slides with limiting slot 8 and connects.It is cold But driving element 5 is connected on end of the column 3 far from finish-forging die die cavity 2, driving element 5 is for driving cooling column 3 in sliding slot 1 Internal slide.In the present embodiment, driving element 5 is cylinder, and the end of cylinder piston rod is connected in cooling column 3.Finish-forging die Lateral wall on offer coolant flow channel 1 and coolant flow channel 27, coolant flow channel 1 through sliding slot 1 inner wall and for 41 connection of water inlet end, coolant flow channel 27 through sliding slot 1 side wall and be used for and 42 connection of water outlet.
During carrying out finish-forging, cooling column 3 is controlled by driving element 5 and is moved to 2 side of die cavity of finish-forging die, Until limited block 9 contacts at limiting slot 8 close to the cell wall of finish-forging die die cavity 2, cooling column 3 is stretched to inside finish-forging die at this time Product in, and coolant flow channel 1 and the complete connection of water inlet at this time, coolant flow channel 27 and the complete connection of water outlet.Later, Cooling water is injected into coolant flow channel 1 by tools such as water pumps, cooling water enters cooling via coolant flow channel 1 later Finish-forging die is flowed out in channel 4 and finally from coolant flow channel 27.During this, cooling column 3 can center to product into Row cooling.So that the cooling velocity of product center and the cooling velocity of product surface are closer to.One is obtained at the center of product When determining the cooling of degree, the control storage of cooling column 3 is into finish-forging die, cooling duct 4 and coolant flow channel 1 and cooling at this time Runner 27 disconnects, and the cooling effect of cooling column 3 reduces.Finish-forging die is quickly heated later, so that finish-forging die die cavity Product surface temperature in 2 is increased, and the ductility of product surface increases, and continues to push finisher later by press machine Have, after compression, surface deforms and fills up the groove that cooling column 3 is formed the product inside finish-forging die.
Certainly, above is representative instance of the invention, and in addition to this, the present invention can also have other a variety of specific implementations Mode, all technical solutions formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.

Claims (8)

1. a kind of processing method of braking automobile cushion block, it is characterized in that: including the following steps:
Step 1: blanking cuts raw material using band mill;
Step 2: deburring is handled using burr and acute angle of the polishing machine to raw material surface;
Step 3: raw material is put into the resistance furnace for being 415-435 degrees Celsius to temperature and heats 90 minutes or more, makes by preheating The ductility for obtaining raw material increases;
Step 4: jumping-up squeezes raw material using press machine, so that the height of raw material reduces, and cross section increases;
Step 5: raw material is placed into 415-435 degrees Celsius of resistance furnace and heats 90 minutes or more by heating, so that raw material Ductility increases;
Step 6: bending pushes the middle part of embryo material using press machine, so that embryo material is bent;
Step 7: raw material is placed into the resistance furnace that temperature is 415-435 degrees Celsius and heats 90 minutes or more by heating, so that The ductility of raw material increases;
Step 8: raw material is placed into Preform Die by blocking, Preform Die is squeezed using press machine later, so that blocker Material extruding in tool is deformed into semi-finished product;
Step 9: alkali cleaning pickling, the buck using pH value greater than 11 are corroded 30-90 seconds, are then rinsed using clear water, then used Sour water of the pH value less than 4 corrodes 30-90 seconds, is rinsed later using room temperature clear water, the heat for the use of water temperature being finally 60-80 degrees Celsius Water rinsing;
Step 10: polishing carries out grinding process using pit of the electrical grinding machine to the surface of semi-finished product, so that the surface of semi-finished product becomes It obtains relatively smooth, smooth;
Step 11: semi-finished product are placed into the resistance furnace that temperature is 415-435 degree and heat 90 minutes or more by heating, so that The ductility of semi-finished product increases;
Step 12: semi-finished product are placed into finish-forging die by finish-forging, squeeze finish-forging die using press machine later, so that eventually Semi-finished product in forging mould are squeezed and deformed into finished product;
Step 13: trimming, using punching machine by the cutting burrs at finished product edge;
Step 14: solution treatment places products into the solid smelting furnace that temperature is 525-535 degrees Celsius and keeps the temperature 90 minutes;
Step 15: ageing treatment places products into the aging furnace that aging temp is 165-175 degree and keeps the temperature 660 minutes;
Step 10 six: vibro-grinding is ground product using oscillating mill, and control time of vibration is 25 minutes;
Step 10 seven: alkali cleaning pickling, the first buck using pH value greater than 11 are corroded 30-90 seconds, and the clear water of room temperature is then used Rinsing, then the sour water using pH value less than 4 corrodes 30-90 seconds, is rinsed later using the clear water of room temperature, is finally using water temperature The hot water of 50-90 degree rinses;
Step 10 eight: ball blast carries out roll cast using Caterpillar type shot blasting machine, and the control ball blast time is 7 minutes.
2. the processing method of braking automobile cushion block according to claim 1, it is characterized in that: the original selected in the step 1 Expect to be aluminium alloy, and the mass ratio of the al alloy component are as follows: Si:0.9-1.2%, Fe≤0.3%, Cu≤0.1%, Mn:0.55- 0.7%, Mg:0.7-1.0%, Cr≤0.13-0.18%, Zn≤0.1%, Ti≤0.06%, surplus Al.
3. the processing method of braking automobile cushion block according to claim 1, it is characterized in that: the step 14 and the step It is additionally provided with step 10 nine between rapid 15: the finished product after solution treatment being placed into normal-temperature water 5-10 minutes cooling.
4. the processing method of braking automobile cushion block according to claim 1, it is characterized in that: the step 12 and the step It is additionally provided with step 2 ten between rapid 13: intermittent heating is carried out to finish-forging die.
5. the processing method of braking automobile cushion block according to claim 4, it is characterized in that: in the step 2 ten, first A length of t1, the interval of second heating process and third time heating process when the interval of secondary heating process and second of heating process A length of t3 when the interval of Shi Changwei t2, third time heating process and the 4th heating process, and so on, n-th heating process A length of tn when with the interval of (n-1)th heating process, t1 < t2 < t3 < ... < tn.
6. the processing method of braking automobile cushion block according to claim 1, it is characterized in that: being provided with sliding slot in finish-forging die (1), sliding slot (1) connection is in the die cavity (2) of finish-forging die, and sliding slot (1) interior slip is connected with cooling column (3), in cooling column (3) It being provided with cooling duct (4), the both ends of cooling duct (4) are through the side wall of cooling column (3), and the two of cooling duct (4) End is respectively water inlet end (41) and water outlet (42), is connected with drive on the end of cooling column (3) separate finish-forging die die cavity (2) Dynamic element (5), driving element (5) offer coolant flow channel on the side wall of finish-forging die for driving cooling column (3) to be slided One (6) and coolant flow channel two (7), coolant flow channel one (6) through sliding slot (1) inner wall and for water inlet end (41) connection, Coolant flow channel two (7) through sliding slot (1) side wall and be used for and water outlet (42) connection.
7. the processing method of braking automobile cushion block according to claim 6, it is characterized in that: being offered at sliding slot (1) inner wall Limiting slot (8), for cooling column (3) far from being provided with limited block (9) on the end of finish-forging die die cavity (2), the limited block (9) is sliding It is internal that shifting is connected to the limiting slot (8).
8. the processing method of braking automobile cushion block according to claim 7, it is characterized in that: when cooling column (3) are in driving member It is mobile to die cavity (2) side of finish-forging die under the action of part (5), and limited block (9) contacts at limiting slot (8) close to finisher When having the cell wall of die cavity (2) side, coolant flow channel one (6) connection is in water inlet end (41), and coolant flow channel two (7) connection is in water outlet (42);It is mobile to die cavity (2) side far from finish-forging die under the action of cooling column (3) is in driving element (5), and limited block (9) when the cell wall with limiting slot (8) close to finish-forging die die cavity (2) separates, between coolant flow channel one (6) and water inlet end (41) Connection is gradually turned off, and the connection between coolant flow channel two (7) and water outlet (42) is gradually turned off.
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