CN106085014A - A kind of automobile brake sheet surface increases the coating and preparation method thereof that rubs - Google Patents
A kind of automobile brake sheet surface increases the coating and preparation method thereof that rubs Download PDFInfo
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- CN106085014A CN106085014A CN201610609288.1A CN201610609288A CN106085014A CN 106085014 A CN106085014 A CN 106085014A CN 201610609288 A CN201610609288 A CN 201610609288A CN 106085014 A CN106085014 A CN 106085014A
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- automobile brake
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/02—Copolymers with acrylonitrile
- C09D109/04—Latex
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Braking Arrangements (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of automobile brake sheet, especially relate to a kind of automobile brake sheet surface and increase the coating and preparation method thereof that rubs.It is mainly the vehicle solving the drum brake existing for prior art at new car state retarding braking, the especially technical problem of ramp parking moment deficiency etc..NBR latex of the present invention is firstly added surfactant and sodium hexameta phosphate, 5% sodium carboxymethyl cellulose, stirring, treats that it fully dissolves；Then in stirring, it is sequentially added into sulfur, zinc oxide, captax or accelerator, light magnesium oxide, abrasive material, stirs to powder and fully infiltrate, then by colloid mill grinding material extremely state fine and smooth, uniform；Finally being slowly added into appropriate pure water in stirring, regulation material, to suitable viscosity 300 400mPa.s, i.e. goes out finished automotive disc surface and increases the coating that rubs.
Description
Technical field
The present invention relates to a kind of automobile brake sheet, especially relate to a kind of automobile brake sheet surface and increase rub coating and preparation thereof
Method.
Background technology
Drum brake is a kind of traditional brake for cars, is widely used for various visitor, goods automobile (truck, pick up
Car and car etc.), its operation principle is the brake drum inner surface making brake shoe be close on wheel by hydraulic pressure or mechanical tension,
Frictionally realizes retarding braking or ramp parking.Although, current four-wheel disc type brake technology obtains in medium-to-high grade car
Commonly used, but the parking braking of most of four Wheel-type cars is all realized by so-called " drum-type in dish " brake,
Its operation principle and structure are still belonging to drum brake category.
Being different from disk brake, the rubbing surface of drum brake is circular arc, therefore its Brake shoe lining and system
The break-in of dynamic drum surface must be longer process, cause the vehicle of configuration drum brake often to brake poor in new car state, especially
It is ramp parking scarce capacity, easily slips by slope accident.General solution is strictly to control Brake shoe lining and braking
The fit dimension (tolerance) of drum, but be only capable of playing the effect shortening running-in period, lower X-ray inspection X when new car dispatches from the factory still more to be had
The underproof problem of braking moment.
Disk brake also exist new car must braking ability can be stable after break-in problem (although this process is shorter), have
Businessman uses the method increasing the coating that rubs at disc brake pad external coating, efficiently solves unstable the asking of new car braking moment
Topic, such coating mostly is the resin base product containing organic solvent, and application is simple, but containing more inorganic abradant.When being used for rousing
During formula brake, owing to drum brake is close to airtight working environment, the abrasive material ground can not be got rid of, and often results in braking different
Ring, and abrade brake drum.Therefore, though having counted the commercially available disc surface of money to increase the coating that rubs, but it is not suitable for drum brakes more
Sheet.
Summary of the invention
The present invention is to provide a kind of automobile brake sheet surface and increases the coating and preparation method thereof that rubs, and it mainly solves existing skill
The vehicle of the drum brake existing for art is asked at new car state retarding braking, the especially technology of ramp parking moment deficiency etc.
Topic.
The above-mentioned technical problem of the present invention is mainly addressed by following technical proposals:
A kind of automobile brake sheet surface of the present invention increases the coating that rubs, it is characterised in that the composition of described coating and mass percent
For: NBR latex 200～300 parts, sodium hexameta phosphate 1～3 parts, 5% sodium carboxymethyl cellulose 20～40 parts, sulfur 5～10 parts,
Zinc oxide 2～5 parts, captax or altax 0.5～1 part, light magnesium oxide 100～150 parts, abrasive material 10～30 parts, pure
Water 200～300 parts.
The automobile brake sheet surface of the present invention increases the coating that rubs and is different from the most commercially available disc brake pad surface and increases and rub
Coating, is a kind of based on NBR latex, is aided with a small amount of inorganic abradant and organic active auxiliary agent, and the aqueous that emulsifying is made is coated with
Material, must be dried and can use after high temperature vulcanized after being applied to drum-type brake pad surface.General car drum-type is (containing drum in dish
Formula) brake block every only needs the automotive drum type braking sheet surface of the application present invention to increase to rub coating 0.5-1.0 gram, can form thickness
Degree, less than the Coating of increasing friction of 0.1mm, makes retarding braking moment improve at least 25%, parking braking moment improve at least 50% with
On.And, the automotive drum type braking sheet surface of the application present invention increases the brake block of the coating that rubs, and rub dust pettiness, does not produces
Brake abnormal sound, do not damage brake drum.Rub after dope layer ground off by use when the automotive drum type braking sheet surface of the present invention increases, stop
The break-in of car sheet has i.e. been accused, the normal performance of former brake block, and the automotive drum type braking sheet surface of the present invention increases the painting that rubs
The bed of material lost efficacy immediately.Captax or altax are all commercially available prod.
As preferably, automobile brake sheet surface of the present invention increases the coating that rubs and can also add suitable before application as one sees fit
Amount water soluble anti-rust agent or anticorrodent, in case brake block (especially semipermanent mold brake block) surface produces rust in dry run
Speckle.
As preferably, automobile brake sheet surface of the present invention increases the coating that rubs and can also add suitable before application as one sees fit
The alkaline solutions such as amount sodium hydroxide, the pH value of adjusting coating to more than 8.0, brake block and brake disc/drum can be prevented at damp and hot ring
Corrosion adhesion in border.
As preferably, described abrasive material is more than fineness 320 mesh, the Mohs' hardness Alpha-alumina more than 7, zircon, chromium
The one of which of Iron Ore Powder or combination.
A kind of automobile brake sheet surface increases the preparation method of the coating that rubs, and its method includes:
A. by above-mentioned formula, NBR latex is firstly added surfactant and sodium hexameta phosphate, 5% sodium carboxymethyl cellulose, stirs
Mix, treat that it fully dissolves；
The most then in stirring, sulfur, zinc oxide, captax or altax, light magnesium oxide, abrasive material it are sequentially added into, stirring
Fully infiltrate to powder, then with colloid mill grinding material to state fine and smooth, uniform；
C. being slowly added into appropriate pure water in last stirring, regulation material, to suitable viscosity 300-400mPa.s, i.e. goes out
Finished automotive disc surface increases the coating that rubs.
The increasing of the present invention coating that rubs can be brushed or roller coating is in automobile brake sheet work surface, and must be heated, after sulfuration coating
Use.The object being suitable for includes automotive disc and drum-type brake pad, is particularly suited for automotive drum type braking sheet, to improve brake
The initial brake usefulness of sheet.
As preferably, mixture is heated, first with the speed liter of 5-10 DEG C/min by described step b when infiltration
Temperature to 90-100 DEG C, is incubated 30-60 minute, then with the speed rapid cooling to 0-10 DEG C of 20-30 DEG C/min, is incubated 10-20
Minute, then with the ramp to 120-130 DEG C of 5-10 DEG C/min, it is incubated 30-60 minute, then the speed with 20-30 DEG C/min
Rate rapid cooling to 20-30 DEG C, is incubated 10-20 minute, with the ramp to 140-150 DEG C of 5-10 DEG C/min, finally natural
Cool to room temperature.Heated up and twice rapid cooling by three times, each component fully can be merged, such friction material
Increasing effect of rubbing preferable.
As preferably, described stirring is carried out in stirred tank, the still wall of stirred tank be provided with spaced fin with
Side stirring rod, fin is provided with some blades, and the outer end of blade is provided with sawtooth, is provided with and some stirs with side with the rod of side stirring rod
Mix the orthogonal declutcher control lever set up of rod.Granular material can be shredded by blade, can be carried out by material point by sawtooth
Stream.Stirring rod so that the various feed separation condensed come with declutcher control lever, increases the probability of collision, thus ensures mixedly
Uniformly.
Therefore, thickness of the present invention is less, and retarding braking moment can be made to improve, and has rational in infrastructure, etc. feature.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of stirred tank of the present invention.
Parts, position and numbering in figure: still wall 1, fin 2, side stirring rod 3, blade 4, sawtooth 5, declutcher control lever 6.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment 1: a kind of automobile brake sheet surface of this example increases the coating that rubs, it forms and mass percent is: NBR
Breast (PAN-32) 200 parts, sodium hexameta phosphate 1 part, 5% sodium carboxymethyl cellulose 20 parts, 5 parts of sulfur, zinc oxide 2 parts, captax
0.5 part, light magnesium oxide 100 parts, Alpha-alumina (below 320 mesh) 10 parts, pure water 200 parts.
A kind of automobile brake sheet surface increases the preparation method of the coating that rubs, and the steps include:
A. weigh 200 parts of NBR latexes, add sodium hexameta phosphate 1 part and and prepare 5% standby sodium carboxymethyl cellulose in advance
20 parts, stirring, make the latter fully dissolve；
B. in stirring, it is sequentially added into 5 parts of sulfur, captax 0.5 part, zinc oxide 2 parts, light magnesium oxide 100 parts and alpha-oxidation
10 parts of aluminum, stirs to powder and fully infiltrates, then with colloid mill grind 1 hour be state fine and smooth, uniform to material；
C. adding 200 parts of pure water in last stirring, making material is thickness, stable colloid, complete.
Application and contrast test:
(about 0.01g/Cm is measured in brushing with hairbrush, prepared coating to be painted on the rubbing surface of certain drum-type brake pad equably2),
Dry and be placed in 180 DEG C of baking ovens about 0.5 hour, take out cooling.
By hand braking quiet usefulness before break-in under QC/T237-2008 standard testing 675N drag-line input power, it is forward/backward
Brake stator moment is respectively 1592/1321Nm.
Its coat side, by the coefficientoffrictionμ of GB5763-2008 test100℃It is 0.52.
Embodiment 2: a kind of automobile brake sheet surface of this example increases the coating that rubs, it forms and mass percent is: NBR
Breast (PAN-26) 250 parts, sodium hexameta phosphate 2 parts, 5% sodium carboxymethyl cellulose 30 parts, 8 parts of sulfur, zinc oxide 3 parts, altax
1 part, light magnesium oxide 125 parts, 20 parts of zircon powder (below 320 mesh), pure water 250 parts.
A kind of automobile brake sheet surface increases the preparation method of the coating that rubs, and the steps include:
A. weigh 250 parts of NBR latexes, add sodium hexameta phosphate 2 parts and and prepare 5% standby sodium carboxymethyl cellulose in advance
30 parts, stirring, make the latter fully dissolve；
B. in stirring, it is sequentially added into 8 parts of sulfur, altax 1 part, zinc oxide 3 parts, light magnesium oxide 125 parts and zircon
20 parts of powder, stirs to powder and fully infiltrates, then with colloid mill grind about 1 hour be state fine and smooth, uniform to material；
C. adding 250 parts of pure water in last stirring, making material is thickness, stable colloid, complete.
Application and contrast test:
(about 0.01g/Cm is measured in brushing with hairbrush, prepared coating to be painted on the rubbing surface of certain drum-type brake pad equably2),
Dry and be placed in 180 DEG C of baking ovens about 0.5 hour, take out cooling.
By hand braking quiet usefulness before break-in under QC/T237-2008 Comparison of standards test 675N drag-line input power, it advances/
Retreat brake stator moment and be respectively 2051/1508Nm.
Its coat side, by the coefficientoffrictionμ of GB5763-2008 test100℃It is 0.55.
Embodiment 3: a kind of automobile brake sheet surface of this example increases the coating that rubs, it forms and mass percent is: NBR
Breast (PAN-26) 300 parts, sodium hexameta phosphate 3 parts, 5% sodium carboxymethyl cellulose 40 parts, 10 parts of sulfur, zinc oxide 5 parts, accelerator
DM 2 parts, light magnesium oxide 150 parts, chromite powder (36%Cr) 30 parts, pure water 300 parts.
A kind of automobile brake sheet surface increases the preparation method of the coating that rubs, and the steps include:
A. weigh 300 parts of NBR latexes, add sodium hexameta phosphate 1 part and and prepare 5% standby sodium carboxymethyl cellulose in advance
40 parts, stirring, make the latter fully dissolve；
B. in stirring, it is sequentially added into 10 parts of sulfur, captax 2 parts, zinc oxide 5 parts, light magnesium oxide 150 parts and chromite
30 parts of powder (36%Cr), stirs to powder and fully infiltrates, then with colloid mill grind 1 hour be shape fine and smooth, uniform to material
State；Stirring is carried out in stirred tank, as schemed, and 1, the still wall 1 of stirred tank is provided with spaced fin 2 and side stirring rod 3, convex
Rib is provided with some blades 4, and the outer end of blade is provided with sawtooth 5, is provided with some mutual with side stirring rod with the rod of side stirring rod
The declutcher control lever 6 vertically set up.
C. adding 300 parts of pure water in last stirring, making material is thickness, stable colloid, complete.
Application and contrast test:
(about 0.01g/Cm is measured in brushing with hairbrush, prepared coating to be painted on the rubbing surface of certain drum-type brake pad equably2),
Dry and be placed in 180 DEG C of baking ovens about 0.5 hour, take out cooling.
By hand braking quiet usefulness before break-in under QC/T237-2008 standard testing 670N drag-line input power, it is forward/backward
Brake stator moment is respectively 1114 ~ 883Nm.
Its coat side, by the coefficientoffrictionμ of GB5763-2008 test100℃It is 0.48.
Comparative example: above example 1 ~ 3, with the drum-type brake pad of money, is not coated with any increasing and rubs coating:
By hand braking quiet usefulness, forward/backward brake stator before break-in under QC/T237-2008 standard testing 670N drag-line input power
Moment is 765/742Nm.
By coefficientoffrictionμ before the break-in of GB5763-2008 test100℃It is 0.43.
The foregoing is only the specific embodiment of the present invention, but the architectural feature of the present invention is not limited thereto, Ren Heben
The technical staff in field is in the field of the invention, and change or the modification made all are contained among the scope of the claims of the present invention.
Claims (5)
1. an automobile brake sheet surface increases the coating that rubs, it is characterised in that the composition of described coating and mass percent be: fourth
Nitrile latex 200-300 part, sodium hexameta phosphate 1-3 part, 5% sodium carboxymethyl cellulose 20-40 part, sulfur 5-10 part, zinc oxide 2-5
Part, captax or altax 0.5-1 part, light magnesium oxide 100-150 part, abrasive material 10-30 part, pure water 200-300 part.
A kind of automobile brake sheet surface the most according to claim 1 increases the coating that rubs, it is characterised in that described abrasive material is thin
Spend more than 320 mesh, Mohs' hardness Alpha-alumina, zircon, the one of which of chromite powder or combination more than 7.
3. an automobile brake sheet surface increases the preparation method of the coating that rubs, it is characterised in that described method includes:
A. the formula according to claim 1, NBR latex is firstly added surfactant and sodium hexameta phosphate, 5% carboxymethyl cellulose
Sodium, stirring, treat that it fully dissolves；
The most then in stirring, sulfur, zinc oxide, captax or altax, light magnesium oxide, abrasive material it are sequentially added into, stirring
Fully infiltrate to powder, then with colloid mill grinding material to state fine and smooth, uniform；
C. being slowly added into appropriate pure water in last stirring, regulation material, to suitable viscosity 300-400mPa.s, i.e. goes out
Finished automotive disc surface increases the coating that rubs.
A kind of automobile brake sheet surface the most according to claim 3 increases the preparation method of the coating that rubs, it is characterised in that described
Step b infiltration time mixture is heated, first with the ramp to 90-100 DEG C of 5-10 DEG C/min, insulation 30-
60 minutes, then with the speed rapid cooling to 0-10 DEG C of 20-30 DEG C/min, it is incubated 10-20 minute, then with 5-10 DEG C/min
Ramp to 120-130 DEG C, be incubated 30-60 minute, then the speed rapid cooling to 20-30 DEG C with 20-30 DEG C/min, protect
Temperature 10-20 minute, with the ramp to 140-150 DEG C of 5-10 DEG C/min, last Temperature fall is to room temperature.
A kind of automobile brake sheet surface the most according to claim 3 increases the preparation method of the coating that rubs, it is characterised in that described
Stirring carry out in stirred tank, the still wall (1) of stirred tank is provided with spaced fin (2) and side stirring rod (3), fin
Being provided with some blades (4), the outer end of blade is provided with sawtooth (5), is provided with some mutual with side stirring rod with the rod of side stirring rod
The perpendicular declutcher control lever (6) set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609288.1A CN106085014B (en) | 2016-07-29 | 2016-07-29 | A kind of automotive brake pads surface increases the coating and preparation method thereof that rubs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609288.1A CN106085014B (en) | 2016-07-29 | 2016-07-29 | A kind of automotive brake pads surface increases the coating and preparation method thereof that rubs |
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| Publication Number | Publication Date |
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| CN106085014A true CN106085014A (en) | 2016-11-09 |
| CN106085014B CN106085014B (en) | 2018-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105817A (en) * | 2019-04-08 | 2019-08-09 | 珠海华莱汽车零部件有限公司 | A kind of increasing for disc surface rubs coating and preparation method thereof |
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| CN1844204A (en) * | 2006-05-12 | 2006-10-11 | 上海培盟材料科技有限公司 | Friction materials for high-speed train braking and method for preparing same |
| KR101437401B1 (en) * | 2014-02-13 | 2014-09-05 | 주식회사 에이디시러스코리아 | Disk brake shim and method of fabricating thereof |
| CN104327607A (en) * | 2014-09-18 | 2015-02-04 | 浙江万向系统有限公司 | Liquid friction-increasing rubber for shoe plate of rear-drum brake and preparation method thereof |
| CN105176210A (en) * | 2015-08-06 | 2015-12-23 | 湖北飞龙摩擦密封材料股份有限公司 | Coating material for automobile braking system and preparation method thereof |
-
2016
- 2016-07-29 CN CN201610609288.1A patent/CN106085014B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844204A (en) * | 2006-05-12 | 2006-10-11 | 上海培盟材料科技有限公司 | Friction materials for high-speed train braking and method for preparing same |
| KR101437401B1 (en) * | 2014-02-13 | 2014-09-05 | 주식회사 에이디시러스코리아 | Disk brake shim and method of fabricating thereof |
| CN104327607A (en) * | 2014-09-18 | 2015-02-04 | 浙江万向系统有限公司 | Liquid friction-increasing rubber for shoe plate of rear-drum brake and preparation method thereof |
| CN105176210A (en) * | 2015-08-06 | 2015-12-23 | 湖北飞龙摩擦密封材料股份有限公司 | Coating material for automobile braking system and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110105817A (en) * | 2019-04-08 | 2019-08-09 | 珠海华莱汽车零部件有限公司 | A kind of increasing for disc surface rubs coating and preparation method thereof |
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