CN109182956A - A kind of process for surface preparation improving automotive brake pads wearability - Google Patents
A kind of process for surface preparation improving automotive brake pads wearability Download PDFInfo
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- CN109182956A CN109182956A CN201811094240.7A CN201811094240A CN109182956A CN 109182956 A CN109182956 A CN 109182956A CN 201811094240 A CN201811094240 A CN 201811094240A CN 109182956 A CN109182956 A CN 109182956A
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
- C23C8/30—Carbo-nitriding
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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Abstract
The present invention provides a kind of process for surface preparation for improving automotive brake pads wearability, is related to brake block working process technical field.The process for surface preparation process that the present invention improves automotive brake pads wearability is by the heat treatment of brake block blank, machining, the processing such as frosted processing, cleaning treatment, carbon, nitrogen infiltration processing, blasting treatment, secondary cleaning is carried out again, finally smear one layer for the treatment of fluid, it is glued after drying, after a series of processing, brake block internal stress can be effectively reduced, improve surface hardness, so that brake block has very strong wear-resisting, corrosion resistance, thermal fatigue resistance, non-stick nature, the service life of brake block is greatly improved.
Description
Technical field
The present invention relates to brake block working process technical fields, and in particular to a kind of table for improving automotive brake pads wearability
Face preprocess method.
Background technique
With the high speed development of automobile industry, requirement of the user vehicle to brake safe performance is higher and higher, in the market often
The brake block seen is mostly asbestos friction material, and in the case where emergency brake, coefficient of friction can sharply decline, and causes kinetic moment decline tight
Weight, influences the safety driven, and asbestos material can generate a large amount of dust under the action of high temperature wear, has carcinogenic work
With.Excellent friction plate material should have good coefficient of friction and abrasion resistance properties, high elasticity modulus, enough machinery strong
Degree, high heat resistance and high thermal conductivity and thermal capacity just can guarantee that service life reaches design requirement, realizes the small of system
Type and lightweight, and then improve the mobility and reliability of vehicle.
Brake block is the breaking piece of most critical in the brake system of automobile, and the quality of all braking effects is all brake
Piece plays a decisive role, so the brake block for agreeing is the patron saint of people and automobile, wherein thermal insulation layer is by adiabatic material
Composition, it is therefore an objective to which heat-insulated, friction block is made of friction material, adhesive, and when brake, which is compressed on brake disc or brake rim, to be produced
Raw friction, thus achieve the purpose that vehicle deceleration brakes, but the low braking effect that not only will lead to of the mechanical property of brake block is poor,
And will lead to serious wear, largely effect on its using effect；But at present technology the research of brake block is rested on more raw material,
On formula, structure design, to enhance its wear-resisting property, the cost of its preparation will increase, and also will increase preparation process flow, very
The rare research for carrying out disc surface processing, causes field of brake pad to cannot get breakthrough development always.
Therefore, a kind of process for surface preparation of raising automotive brake pads wearability is developed for automotive brake pads field
Develop particularly important.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of process for surface preparation for improving automotive brake pads wearability.
In order to achieve the above object, technical solution of the present invention is achieved by the following technical programs:
A kind of process for surface preparation improving automotive brake pads wearability, comprising the following steps:
S1, the brake block blank heat treatment that compression molding is obtained, machining, obtain pretreatment brake block；
S2, the pretreated brake block of step S1 is subjected to frosted processing, cleaning treatment, sets brake block after cleaning treatment
In electric furnace, carry out once being warming up to 750-850 DEG C, soaking time 65-70min, then secondary temperature elevation is protected to 980-1010 DEG C
Room temperature is cooled to the speed of 40 DEG C/min after warm 41-45min, then is warming up to 550-570 DEG C three times, keeps the temperature 20-23min, with
Furnace is air-cooled to room temperature, the brake block that obtains that treated；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 420-
450 DEG C, soaking time 65-80min, it is then warming up to 565-575 DEG C, starting vacuum evacuation device is maintained at electric furnace internal pressure power
500-550Pa, is passed through carbon dioxide and ammonia, and carbon dioxide flow is controlled in 1.6-1.7m3The flow control of/h, ammonia exist
20-24m3/ h carries out the infiltration of carbon, nitrogen, and the infiltration time is 3-4h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake of processing
Vehicle piece；
S4, the brake block that step S3 carbon, nitrogen penetrate into processing is subjected to blasting treatment, uses compressed air for power, by stone
One of sand, diamond dust or iron sand are ejected into disc surface, and the pressure of compressed air is 0.9-1MPa, obtain sandblasting
The brake block of processing；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, one layer of processing is smeared after the completion of cleaning
Liquid glues after dry.
Further, treatment fluid described in step S5 is that silane coupling agent and solvent are made into, and silane coupling agent concentration is
The weak solution of 0.5-1%.
Further, the solvent of the weak solution is one of water, methanol, ethyl alcohol.
Further, the organic silicon surfactant for being 0.1-0.2% containing mass fraction in the weak solution.
Further, it is heat-treated described in step S1 are as follows: brake block blank is put into electric furnace and is heated, heating temperature 450-
490 DEG C, heating time 9-10h.
Further, machining described in step S1 are as follows: the brake block blank after heat treatment is cooling, it is first right on drilling machine
It carries out drilling and chamfering processing, then moves to deflashing and burr in sanding machine.
Further, the processing of secondary cleaning described in cleaning treatment and step S5 described in step S1 includes that surface is deoiled and water
It washes, surface is deoiled are as follows: use ultrasonic cleaning, remove the oil, wax and oxide layer of disc surface, ultrasonic time 25-
40min。
The present invention provides a kind of process for surface preparation for improving automotive brake pads wearability, compared with prior art advantage
It is:
The process for surface preparation process that the present invention improves automotive brake pads wearability is by the heat treatment of brake block blank, cuts
Processing is cut, then carries out frosted processing, cleaning treatment, carbon, nitrogen infiltration processing, blasting treatment, secondary cleaning processing, finally smears one
Layer treatment fluid, glues after dry, after a series of processing, can effectively reduce brake block internal stress, improve surface hardness,
So that brake block has very strong wear-resisting, corrosion resistance, thermal fatigue resistance, non-stick nature, greatly improve brake block uses the longevity
Life；
Invention improves the process for surface preparation of automotive brake pads wearability by penetrating into carbon, nitrogen-atoms in disc surface
Carbon, the nitrogen infiltration layer being intensively made of at the diffusion layer of pin point fine and close nitride layer, white layer and micropore are formed, so that brake block is wear-resisting
Seizure resistance is good, strong without brittleness, chemical stability under property, corrosion resistance, high temperature, in the case of effectively preventing brake block emergency braking
The case where braking surface Fast Wearing；Also there is corrosion resistant effect, avoid caused by the floating rust on brake block sticks abrasion and
Corrosion；Wearability and corrosion resistance are high, extend the service life of brake block, and the safety in utilization of the brake block is good.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to the embodiment of the present invention pair
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Embodiment 1:
The present embodiment improve automotive brake pads wearability process for surface preparation the following steps are included:
S1, the brake block blank that compression molding obtains is heat-treated, brake block blank is put into electric furnace and is heated, is added
Hot temperature is 450 DEG C, heating time 9h, and the brake block blank after heat treatment is cooling, is first drilled on drilling machine to it
And chamfered, deflashing and burr in sanding machine are then moved to, pretreatment brake block is obtained；
S2, the pretreated brake block of step S1 is subjected to frosted processing, cleaning treatment, sets brake block after cleaning treatment
In electric furnace, carry out once being warming up to 750 DEG C, soaking time 65min, then secondary temperature elevation is to 980 DEG C, keep the temperature after 41min with
The speed of 40 DEG C/min is cooled to room temperature, then is warming up to 550 DEG C three times, keeps the temperature 20min, is air-cooled to room temperature with furnace, is handled
Brake block afterwards, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled are as follows: uses ultrasonic cleaning, removes and stop
Oil, wax and the oxide layer on vehicle piece surface, ultrasonic time 25min；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 420
DEG C, then soaking time 65min is warming up to 565 DEG C, starting vacuum evacuation device makes electric furnace internal pressure power be maintained at 500Pa, is passed through
Carbon dioxide and ammonia, carbon dioxide flow are controlled in 1.6m3/ h, the flow control of ammonia is in 20m3/ h carries out the infiltration of carbon, nitrogen
Enter, the infiltration time is 3h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake block of processing；
S4, the brake block that step S3 carbon, nitrogen penetrate into processing is subjected to blasting treatment, uses compressed air for power, by stone
Sand is ejected into disc surface, and the pressure of compressed air is 0.9MPa, obtains the brake block of blasting treatment；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, one layer of processing is smeared after the completion of cleaning
Liquid glues, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled after dry are as follows: clear using ultrasonic wave
It washes, removes the oil, wax and oxide layer of disc surface, ultrasonic time 25min.
Wherein, treatment fluid is that silane coupling agent and solvent are made into, the weak solution that silane coupling agent concentration is 0.5%；It is dilute
The solvent of solution is water；The organic silicon surfactant for being 0.1% containing mass fraction in weak solution.
Embodiment 2:
The present embodiment improve automotive brake pads wearability process for surface preparation the following steps are included:
S1, the brake block blank that compression molding obtains is heat-treated, brake block blank is put into electric furnace and is heated, is added
Hot temperature is 490 DEG C, heating time 10h, and the brake block blank after heat treatment is cooling, is first drilled on drilling machine to it
And chamfered, deflashing and burr in sanding machine are then moved to, pretreatment brake block is obtained；
S2, the pretreated brake block of step S1 is subjected to frosted processing, cleaning treatment, sets brake block after cleaning treatment
In electric furnace, carry out once being warming up to 850 DEG C, soaking time 70min, then secondary temperature elevation is to 1010 DEG C, keep the temperature after 45min with
The speed of 40 DEG C/min is cooled to room temperature, then is warming up to 570 DEG C three times, keeps the temperature 23min, is air-cooled to room temperature with furnace, is handled
Brake block afterwards, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled are as follows: uses ultrasonic cleaning, removes and stop
Oil, wax and the oxide layer on vehicle piece surface, ultrasonic time 40min；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 450
DEG C, then soaking time 80min is warming up to 575 DEG C, starting vacuum evacuation device makes electric furnace internal pressure power be maintained at 550Pa, is passed through
Carbon dioxide and ammonia, carbon dioxide flow are controlled in 1.7m3/ h, the flow control of ammonia is in 24m3/ h carries out the infiltration of carbon, nitrogen
Enter, the infiltration time is 4h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake block of processing；
S4, the brake block that step S3 carbon, nitrogen penetrate into processing is subjected to blasting treatment, uses compressed air for power, it will be golden
Emery is ejected into disc surface, and the pressure of compressed air is 1MPa, obtains the brake block of blasting treatment；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, one layer of processing is smeared after the completion of cleaning
Liquid glues, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled after dry are as follows: clear using ultrasonic wave
It washes, removes the oil, wax and oxide layer of disc surface, ultrasonic time 40min.
Wherein, treatment fluid is that silane coupling agent and solvent are made into, the weak solution that silane coupling agent concentration is 1%；It is dilute molten
The solvent of liquid is methanol；The organic silicon surfactant for being 0.2% containing mass fraction in weak solution.
Embodiment 3:
The present embodiment improve automotive brake pads wearability process for surface preparation the following steps are included:
S1, the brake block blank that compression molding obtains is heat-treated, brake block blank is put into electric furnace and is heated, is added
Hot temperature is 470 DEG C, heating time 9.5h, and the brake block blank after heat treatment is cooling, is first bored on drilling machine to it
Hole and chamfered then move to deflashing and burr in sanding machine, obtain pretreatment brake block；
S2, the pretreated brake block of step S1 is subjected to frosted processing, cleaning treatment, sets brake block after cleaning treatment
In electric furnace, carry out once being warming up to 800 DEG C, soaking time 68min, then secondary temperature elevation is to 995 DEG C, keep the temperature after 43min with
The speed of 40 DEG C/min is cooled to room temperature, then is warming up to 560 DEG C three times, keeps the temperature 22min, is air-cooled to room temperature with furnace, is handled
Brake block afterwards, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled are as follows: uses ultrasonic cleaning, removes and stop
Oil, wax and the oxide layer on vehicle piece surface, ultrasonic time 33min；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 435
DEG C, then soaking time 74min is warming up to 570 DEG C, starting vacuum evacuation device makes electric furnace internal pressure power be maintained at 530Pa, is passed through
Carbon dioxide and ammonia, carbon dioxide flow are controlled in 1.65m3/ h, the flow control of ammonia is in 22m3/ h carries out the infiltration of carbon, nitrogen
Enter, the infiltration time is 3.5h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake block of processing；
S4, the brake block that step S3 carbon, nitrogen penetrate into processing is subjected to blasting treatment, uses compressed air for power, it will be golden
Emery is ejected into disc surface, and the pressure of compressed air is 0.95MPa, obtains the brake block of blasting treatment；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, one layer of processing is smeared after the completion of cleaning
Liquid glues, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled after dry are as follows: clear using ultrasonic wave
It washes, removes the oil, wax and oxide layer of disc surface, ultrasonic time 33min.
Wherein, treatment fluid is that silane coupling agent and solvent are made into, the weak solution that silane coupling agent concentration is 0.75%；It is dilute
The solvent of solution is ethyl alcohol；The organic silicon surfactant for being 0.15% containing mass fraction in weak solution.
Embodiment 4:
The present embodiment improve automotive brake pads wearability process for surface preparation the following steps are included:
S1, the brake block blank that compression molding obtains is heat-treated, brake block blank is put into electric furnace and is heated, is added
Hot temperature is 460 DEG C, heating time 9.8h, and the brake block blank after heat treatment is cooling, is first bored on drilling machine to it
Hole and chamfered then move to deflashing and burr in sanding machine, obtain pretreatment brake block；
S2, the pretreated brake block of step S1 is subjected to frosted processing, cleaning treatment, sets brake block after cleaning treatment
In electric furnace, carry out once being warming up to 770 DEG C, soaking time 69min, then secondary temperature elevation is to 985 DEG C, keep the temperature after 44min with
The speed of 40 DEG C/min is cooled to room temperature, then is warming up to 555 DEG C three times, keeps the temperature 22min, is air-cooled to room temperature with furnace, is handled
Brake block afterwards, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled are as follows: uses ultrasonic cleaning, removes and stop
Oil, wax and the oxide layer on vehicle piece surface, ultrasonic time 36min；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 430
DEG C, then soaking time 77min is warming up to 568 DEG C, starting vacuum evacuation device makes electric furnace internal pressure power be maintained at 510Pa, is passed through
Carbon dioxide and ammonia, carbon dioxide flow are controlled in 1.62m3/ h, the flow control of ammonia is in 24m3/ h carries out the infiltration of carbon, nitrogen
Enter, the infiltration time is 3.8h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake block of processing；
S4, the brake block that step S3 carbon, nitrogen penetrate into processing is subjected to blasting treatment, uses compressed air for power, by iron
Sand blasting is mapped to disc surface, and the pressure of compressed air is 0.98MPa, obtains the brake block of blasting treatment；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, one layer of processing is smeared after the completion of cleaning
Liquid glues, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled after dry are as follows: clear using ultrasonic wave
It washes, removes the oil, wax and oxide layer of disc surface, ultrasonic time 36min.
Wherein, treatment fluid is that silane coupling agent and solvent are made into, the weak solution that silane coupling agent concentration is 0.6%；It is dilute
The solvent of solution is water；The organic silicon surfactant for being 0.12% containing mass fraction in weak solution.
Embodiment 5:
The present embodiment improve automotive brake pads wearability process for surface preparation the following steps are included:
S1, the brake block blank that compression molding obtains is heat-treated, brake block blank is put into electric furnace and is heated, is added
Hot temperature is 480 DEG C, heating time 9.3h, and the brake block blank after heat treatment is cooling, is first bored on drilling machine to it
Hole and chamfered then move to deflashing and burr in sanding machine, obtain pretreatment brake block；
S2, the pretreated brake block of step S1 is subjected to frosted processing, cleaning treatment, sets brake block after cleaning treatment
In electric furnace, carry out once being warming up to 830 DEG C, soaking time 66min, then secondary temperature elevation is to 1010 DEG C, keep the temperature after 42min with
The speed of 40 DEG C/min is cooled to room temperature, then is warming up to 565 DEG C three times, keeps the temperature 21min, is air-cooled to room temperature with furnace, is handled
Brake block afterwards, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled are as follows: uses ultrasonic cleaning, removes and stop
Oil, wax and the oxide layer on vehicle piece surface, ultrasonic time 30min；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 440
DEG C, then soaking time 70min is warming up to 570 DEG C, starting vacuum evacuation device makes electric furnace internal pressure power be maintained at 530Pa, is passed through
Carbon dioxide and ammonia, carbon dioxide flow are controlled in 1.66m3/ h, the flow control of ammonia is in 23m3/ h carries out the infiltration of carbon, nitrogen
Enter, the infiltration time is 3.5h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake block of processing；
S4, the brake block that step S3 carbon, nitrogen penetrate into processing is subjected to blasting treatment, uses compressed air for power, by stone
Sand is ejected into disc surface, and the pressure of compressed air is 0.95MPa, obtains the brake block of blasting treatment；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, one layer of processing is smeared after the completion of cleaning
Liquid glues, wherein cleaning treatment includes that surface is deoiled and washed, and surface is deoiled after dry are as follows: clear using ultrasonic wave
It washes, removes the oil, wax and oxide layer of disc surface, ultrasonic time 30min.
Wherein, treatment fluid is that silane coupling agent and solvent are made into, the weak solution that silane coupling agent concentration is 0.8%；It is dilute
The solvent of solution is ethyl alcohol；The organic silicon surfactant for being 0.15% containing mass fraction in weak solution.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (7)
1. a kind of process for surface preparation for improving automotive brake pads wearability, which comprises the following steps:
S1, the brake block blank heat treatment that compression molding is obtained, machining, obtain pretreatment brake block；
S2, the pretreated brake block of step S1 carries out to frosted processing, cleaning treatment, brake block is placed in electricity after cleaning treatment
In furnace, carry out once being warming up to 750-850 DEG C, soaking time 65-70min, then secondary temperature elevation is kept the temperature to 980-1010 DEG C
Room temperature is cooled to the speed of 40 DEG C/min after 41-45min, then is warming up to 550-570 DEG C three times, 20-23min is kept the temperature, with furnace
It is air-cooled to room temperature, the brake block that obtains that treated；
S3, by step S2, treated that brake block is placed in vacuum electric furnace, and furnace pressure is maintained at 0Pa, is warming up to 420-450
DEG C, then soaking time 65-80min is warming up to 565-575 DEG C, starting vacuum evacuation device is maintained at electric furnace internal pressure power
500-550Pa, is passed through carbon dioxide and ammonia, and carbon dioxide flow is controlled in 1.6-1.7m3The flow control of/h, ammonia exist
20-24m3/ h carries out the infiltration of carbon, nitrogen, and the infiltration time is 3-4h, is finally cooled to room temperature, obtains carbon, nitrogen penetrates into the brake of processing
Vehicle piece；
S4, by step S3 carbon, nitrogen penetrate into processing brake block carry out blasting treatment, use compressed air for power, by quartz sand,
One of diamond dust or iron sand are ejected into disc surface, and the pressure of compressed air is 0.9-1MPa, obtain blasting treatment
Brake block；
S5, the brake block after step S4 blasting treatment is carried out to secondary cleaning processing, smears one layer for the treatment of fluid after the completion of cleaning, does
Gluing after dry.
2. improving the process for surface preparation of automotive brake pads wearability according to claim 1, it is characterised in that: step S5
The treatment fluid is that silane coupling agent and solvent are made into, and silane coupling agent concentration is the weak solution of 0.5-1%.
3. improving the process for surface preparation of automotive brake pads wearability according to claim 2, it is characterised in that: described dilute
The solvent of solution is one of water, methanol, ethyl alcohol.
4. improving the process for surface preparation of automotive brake pads wearability according to claim 2, it is characterised in that: described dilute
The organic silicon surfactant for being 0.1-0.2% containing mass fraction in solution.
5. improving the process for surface preparation of automotive brake pads wearability according to claim 1, which is characterized in that step S1
The heat treatment are as follows: brake block blank is put into electric furnace and is heated, heating temperature is 450-490 DEG C, heating time 9-10h.
6. improving the process for surface preparation of automotive brake pads wearability according to claim 1, which is characterized in that step S1
The machining are as follows: the brake block blank after heat treatment is cooling, drilling and chamfering processing first is carried out to it on drilling machine, then
Move to deflashing and burr in sanding machine.
7. improving the process for surface preparation of automotive brake pads wearability according to claim 1, which is characterized in that step S1
The processing of secondary cleaning described in the cleaning treatment and step S5 includes that surface is deoiled and washed, and surface is deoiled are as follows: using ultrasound
Wave cleaning, removes the oil, wax and oxide layer of disc surface, ultrasonic time 25-40min.
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| CN201811094240.7A CN109182956A (en) | 2018-09-19 | 2018-09-19 | A kind of process for surface preparation improving automotive brake pads wearability |
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| CN201811094240.7A CN109182956A (en) | 2018-09-19 | 2018-09-19 | A kind of process for surface preparation improving automotive brake pads wearability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852920A (en) * | 2019-01-29 | 2019-06-07 | 江苏奕华新材料科技有限公司 | A kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment |
| CN110285165A (en) * | 2019-06-17 | 2019-09-27 | 无锡汉成新材料科技有限公司 | The production method of wear plate and the brake block of manufacture |
| CN110560343A (en) * | 2019-08-30 | 2019-12-13 | 江苏亚一智能装备有限公司 | Paint spraying process for automobile parts |
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