CN110218371A - A kind of automotive brake pads bloop and preparation method thereof - Google Patents
A kind of automotive brake pads bloop and preparation method thereof Download PDFInfo
- Publication number
- CN110218371A CN110218371A CN201910552673.0A CN201910552673A CN110218371A CN 110218371 A CN110218371 A CN 110218371A CN 201910552673 A CN201910552673 A CN 201910552673A CN 110218371 A CN110218371 A CN 110218371A
- Authority
- CN
- China
- Prior art keywords
- bloop
- weight
- parts
- noise
- brake pads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 27
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000009467 reduction Effects 0.000 claims abstract description 22
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 16
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002557 mineral fiber Substances 0.000 claims abstract description 15
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 15
- 239000005011 phenolic resin Substances 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 14
- 238000004073 vulcanization Methods 0.000 claims abstract description 13
- 239000011256 inorganic filler Substances 0.000 claims abstract description 12
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005864 Sulphur Substances 0.000 claims abstract description 10
- 239000007767 bonding agent Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004513 sizing Methods 0.000 claims abstract description 5
- 241000357293 Leptobrama muelleri Species 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 238000003837 high-temperature calcination Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000395 magnesium oxide Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000003801 milling Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/0006—Noise or vibration control
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to automotive brake pads technical field, title is a kind of automotive brake pads bloop and preparation method thereof, main technical schemes: first by mixing in solid nitrile rubber and carbon black merging mixer；Then by mixing in phenolic resin, sulphur, silica inorganic filler, light magnesium oxide, basalt mineral fiber, barium sulfate merging mixer；The good rubber of above-mentioned mixing friction on purl machine is shaped to sheet rubber；The molding sheet rubber of friction and the two-sided bonding agent steel plate that is coated with are stacked together, bonding by Vulcanization forms noise reduction sheet material on plane roller mill；Secondary curing sizing will be carried out in noise reduction sheet material continuous tunnel furnace；It is punched into the shape of bloop required for braking automobile.The automotive brake pads bloop prepared by the technique is homogeneous, the moderate stabilization of hardness, high-yield strength and the characteristics of higher elongation.
Description
Technical field
The invention belongs to automotive brake pads technical fields, will specifically be related to a kind of automotive brake pads bloop and its system
Preparation Method.The characteristics of bloop is by the moderate stabilization of homogeneous, hardness, high-yield strength and higher elongation.
Background technique
Brake block is generated when with bloop be one in automobile brake system being for reducing or eliminating brake
A kind of attachment of noise, the bloop are pasted on the brake block back side, and thickness is between 0.5-1.5mm.Constitute the knot of bloop
Structure material includes rubber steel disc, sheet metal, film for rubber or the scraps of paper.Due to braking, generated noise is by friction plate and brake
Frictional vibration is formed between disk, and the frictional vibration is formed by noise after friction facing to its steel back, and intensity can be sent out
A raw attenuation change, a then attenuation change is occurred by steel back to bloop again, and since phase resistance layer by layer is to avoid making an uproar
Sound plays the role of reducing noise because it constitutes resonance.And the material for constituting bloop is produced when directly influencing automobile brake
The improvement and elimination of raw noise.The performances such as the presently used matching used bloop high temperature resistance of brake block and its hardness
It is difficult to meet generated hot environment when brake block brake, so that it absorbs the degradation for inhibiting noise audio.
It is an object of the invention to provide a kind of textured uniform, moderate stabilization of hardness, there is high-yield strength, higher
Elongation and the automotive brake pads bloop of constant compression characteristic and preparation method thereof.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of automotive brake pads bloop, including
The nitrile rubber of 25-35 parts by weight, the sulphur of 2-4 parts by weight, the phenolic resin of 3-7 parts by weight, 20-40 parts by weight
Silica inorganic filler, the carbon black of 5-10 parts by weight, the light magnesium oxide of 10-20 parts by weight, 4.5-10 parts by weight
The barium sulfate of basalt mineral fiber, 15-25 parts by weight.
Constituting a kind of above-mentioned additional technical feature of bloop further include:
--- the nitrile rubber is solid nitrile rubber；
The phenolic resin is unmodified phenolic resin；
--- it in 4.0-5.0um, length is 100-150um without slag ball fiber that the basalt mineral fiber, which is diameter,；
--- the content of the barium sulfate is not less than 95%；
--- the silica filler is by high-temperature calcination process and content is 95% or more.
A kind of preparation method of automotive brake pads bloop, comprising the following steps:
Step 1, by solid nitrile rubber and carbon black mixing 5-10 minutes in mixer；
Step 2: phenolic resin, silica inorganic filler, light magnesium oxide, basalt mineral fiber and barium sulfate are added
Into mixer, 80-95 DEG C at a temperature of mixing 5-10 minutes；
The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3-0.5mm by step 3；
Step 4 exists sheet pack sieve for the 0.5-1.0mm thickness that the molding sheet rubber of friction and two-sided or single side are coated with bonding agent
Together, bonding by Vulcanization is carried out on the plane roller mill that temperature is 140-160 DEG C be shaped to noise reduction sheet material；
Step 5: by the noise reduction sheet material of above-mentioned formation merging continuous tunnel furnace, 100-130 DEG C at a temperature of carry out 20-40
The secondary curing sizing of minute；
Step 6: the noise reduction sheet material after solidifying and setting is punched by type shape required for different braking automobiles, is formed and is fixed
Bloop on brake block steel back.
A kind of automotive brake pads provided by the present invention compared with prior art, is had the advantage that with bloop
First, due to constitute bloop sheet rubber in containing nitrile rubber and the phenolic resin that is not modified so that being formed
The high temperature resistant of sheet rubber can reach 300-330 DEG C, can satisfy the high temperature range for being formed by brake block, it is good with having
Good high temperature resistance；
Second, improving the hardness of its sheet rubber due to containing silica inorganic filler in the sheet rubber of composition bloop, making
Barotolerance can increase, guarantee the compression set amount and fatigue-resistance characteristics of product.
Third: due to containing basalt mineral fiber component in the sheet rubber for constituting bloop, the drawing of rubber is improved
Stretch intensity and elongation.
Specific embodiment
Embodiment 1
It first will be mixing 6 minutes in the solid nitrile rubber of 30 parts by weight and the carbon black of 10 parts by weight merging mixer；Then will
The phenolic resin of 3.0 parts by weight, the sulphur of 2.0 parts by weight, the silica inorganic filler of 20 parts by weight, 12 parts by weight lightweight
Magnesia, the basalt mineral fiber of 10 parts by weight, 15 parts by weight barium sulfate merging mixer in, be 80 DEG C close in temperature
Mixing 6 minutes in mill；The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3mm；By friction at
The sheet rubber of type and the steel plate of the two-sided 0.5mm thickness for being coated with bonding agent stack together, 140 DEG C at a temperature of utilize straight roll
Bonding by Vulcanization forms noise reduction sheet material on milling train；Noise reduction sheet material is carried out to 40 minutes secondary solid in 110 DEG C of continuous tunnel furnace
Change sizing；It is punched into the shape of bloop required for braking automobile.
The test result of its performance parameter of the bloop: hardness: Shao's soft: 70, yield strength: 8MPa, elongation:
185%, compression ratio: 23%.
Same brake flake products are before and after having used bloop prepared by embodiment 1, noise test Comparative result:
Bloop of the present invention is not used, noise test result: big between 2KHz-4KHz by 1400 noise tests
It is incidence 10.2% in the noise of 70dB (A), the noise that 70dB (A) is greater than between 4KHz-6KHz is incidence 13.5%.
Noise between 6KHz-10KHz greater than 70dB (A) is incidence 9.6%.Making an uproar greater than 70dB (A) between 10KHz-14KHz
Sound is incidence 3.5%.
Using after bloop of the present invention, noise test result: by 1400 noise tests,
Noise between 2KHz-4KHz greater than 70dB (A) is incidence 2.3%, and the noise of 70dB (A) is greater than between 4KHz-6KHz
For incidence 4.5%.Noise between 6KHz-10KHz greater than 70dB (A) is incidence 3.1%.It is big between 10KHz-14KHz
In 70dB (A) noise be incidence 0.5%.
Embodiment 2,
It first will be mixing 7 minutes in the solid nitrile rubber of 25 parts by weight and the carbon black of 8.0 parts by weight merging mixer；Then will
The phenolic resin of 5.0 parts by weight, the sulphur of 3.0 parts by weight, the silica inorganic filler of 26 parts by weight, 12 parts by weight lightweight
Magnesia, the basalt mineral fiber of 8.0 parts by weight, 25 parts by weight barium sulfate merging mixer in, be 80 DEG C in temperature
Mixing 8 minutes in mixer；The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3mm；By friction
Molding sheet rubber and the steel plate of the two-sided 0.5mm thickness for being coated with bonding agent stack together, 145 DEG C at a temperature of utilize plane
Bonding by Vulcanization forms noise reduction sheet material on roller mill；Noise reduction sheet material is carried out to 30 minutes secondary in 120 DEG C of continuous tunnel furnace
Solidifying and setting；It is punched into the shape of bloop required for braking automobile.
The test result of its performance parameter of the bloop: hardness: Shao's soft: 75, yield strength: 8.5MPa, elongation
Rate: 196%, compression ratio: 22%.
Same brake flake products are before and after having used bloop prepared by embodiment 2, noise test Comparative result:
Bloop of the present invention is not used, noise test result: big between 2KHz-4KHz by 1400 noise tests
It is incidence 10.2% in the noise of 70dB (A), the noise that 70dB (A) is greater than between 4KHz-6KHz is incidence 13.5%.
Noise between 6KHz-10KHz greater than 70dB (A) is incidence 9.6%.Making an uproar greater than 70dB (A) between 10KHz-14KHz
Sound is incidence 3.5%.
Using after bloop of the present invention, noise test result: by 1400 noise tests,
Noise between 2KHz-4KHz greater than 70dB (A) is incidence 1.5%, and the noise of 70dB (A) is greater than between 4KHz-6KHz
For incidence 2.1%.Noise between 6KHz-10KHz greater than 70dB (A) is incidence 2.8%.It is big between 10KHz-14KHz
In 70dB (A) noise be incidence 0.5%.
Embodiment 3,
It first will be mixing 10 minutes in the solid nitrile rubber of 34 parts by weight and the carbon black of 5 parts by weight merging mixer；Then by 4
The lightweight oxidation of the phenolic resin of parts by weight, the sulphur of 4 parts by weight, the silica inorganic filler of 35 parts by weight, 12 parts by weight
Magnesium, the basalt mineral fiber of 5 parts by weight, 15 parts by weight barium sulfate merging mixer in, be 95 DEG C of mixer in temperature
Middle mixing 9 minutes；The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3mm；Friction is molding
Sheet rubber and the steel plate of the two-sided 0.5mm thickness for being coated with bonding agent stack together, 150 DEG C at a temperature of utilize plane roller mill
Upper bonding by Vulcanization forms noise reduction sheet material；The secondary curing that noise reduction sheet material carries out 20 minutes in 130 DEG C of continuous tunnel furnace is determined
Type；It is punched into the shape of bloop required for braking automobile.
The test result of its performance parameter of the bloop: hardness: Shao's soft: 80, yield strength: 9.4MPa, elongation
Rate: 215%, compression ratio: 21%.
Noise test Comparative result: same brake flake products do not make before and after having used bloop prepared by embodiment 3
With bloop of the present invention, noise test result: by 1400 noise tests, it is greater than between 2KHz-4KHz
The noise of 70dB (A) is incidence 10.2%, and the noise that 70dB (A) is greater than between 4KHz-6KHz is incidence 13.5%.
Noise between 6KHz-10KHz greater than 70dB (A) is incidence 9.6%.Making an uproar greater than 70dB (A) between 10KHz-14KHz
Sound is incidence 3.5%.
Using after bloop of the present invention, noise test result: by 1400 noise tests,
Noise between 2KHz-4KHz greater than 70dB (A) is incidence 0.9%, and the noise of 70dB (A) is greater than between 4KHz-6KHz
For incidence 0.2%.Noise between 6KHz-10KHz greater than 70dB (A) is incidence 0%.It is greater than between 10KHz-14KHz
The noise of 70dB (A) is incidence 0%.
Embodiment 4,
It first will be mixing 8 minutes in the solid nitrile rubber of 33 parts by weight and the carbon black of 9 parts by weight merging mixer；Then will
The phenolic resin of 4.5 parts by weight, the sulphur of 3.5 parts by weight, the silica inorganic filler of 38 parts by weight, 15 parts by weight lightweight
Magnesia, the basalt mineral fiber of 6 parts by weight, 18 parts by weight barium sulfate merging mixer in, be 92 DEG C close in temperature
Mixing 9 minutes in mill；The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3mm；By friction at
The sheet rubber of type and the steel plate of the two-sided 0.5mm thickness for being coated with bonding agent stack together, 152 DEG C at a temperature of utilize straight roll
Bonding by Vulcanization forms noise reduction sheet material on milling train；Noise reduction sheet material is carried out to 22 minutes secondary solid in 130 DEG C of continuous tunnel furnace
Change sizing；It is punched into the shape of bloop required for braking automobile.
Test result: hardness: Shao's soft: 81, yield strength: 9.5MPa, elongation: 225%, compression ratio: 19.5%.
Test result: hardness: Shao's soft: 81, yield strength: 9.5MPa, elongation: 225%, compression ratio: 19.5%.
Same brake flake products are before and after having used bloop prepared by embodiment 4, noise test Comparative result:
Bloop of the present invention is not used, noise test result: big between 2KHz-4KHz by 1400 noise tests
It is incidence 10.2% in the noise of 70dB (A), the noise that 70dB (A) is greater than between 4KHz-6KHz is incidence 13.5%.
Noise between 6KHz-10KHz greater than 70dB (A) is incidence 9.6%.Making an uproar greater than 70dB (A) between 10KHz-14KHz
Sound is incidence 3.5%.
Using after bloop of the present invention, noise test result: by 1400 noise tests,
Noise between 2KHz-4KHz greater than 70dB (A) is incidence 0.7%, and the noise of 70dB (A) is greater than between 4KHz-6KHz
For incidence 0.2%.Noise between 6KHz-10KHz greater than 70dB (A) is incidence 0%.It is greater than between 10KHz-14KHz
The noise of 70dB (A) is incidence 0%.
Embodiment 5,
It first will be mixing 10 minutes in the solid nitrile rubber of 33.5 parts by weight and the carbon black of 8 parts by weight merging mixer；Then
By the phenolic resin of 4.8 parts by weight, the sulphur of 3.8 parts by weight, the silica inorganic filler of 36 parts by weight, 18 parts by weight it is light
Matter magnesia, the basalt mineral fiber of 4.5 parts by weight, 19 parts by weight barium sulfate merging mixer in, temperature be 95 DEG C
Mixer in mixing 9 minutes；The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3mm；It will roll
The sheet rubber of gum forming and the steel plate of the two-sided 0.5mm thickness for being coated with bonding agent stack together, 153 DEG C at a temperature of using flat
Bonding by Vulcanization forms noise reduction sheet material on the roller mill of face；Noise reduction sheet material is carried out to the two of 20 minutes in 130 DEG C of continuous tunnel furnace
Secondary solidifying and setting；It is punched into the shape of bloop required for braking automobile.
Test result: hardness: Shao's soft: 85, yield strength: 9.7MPa, elongation: 235%, compression ratio: 19.8%.
Same brake flake products are before and after having used bloop prepared by embodiment 5, noise test Comparative result:
Bloop of the present invention is not used, noise test result: big between 2KHz-4KHz by 1400 noise tests
It is incidence 10.2% in the noise of 70dB (A), the noise that 70dB (A) is greater than between 4KHz-6KHz is incidence 13.5%.
Noise between 6KHz-10KHz greater than 70dB (A) is incidence 9.6%.Making an uproar greater than 70dB (A) between 10KHz-14KHz
Sound is incidence 3.5%.
Using after bloop of the present invention, noise test result: by 1400 noise tests,
Noise between 2KHz-4KHz greater than 70dB (A) is incidence 0.7%, and the noise of 70dB (A) is greater than between 4KHz-6KHz
For incidence 0.2%.Noise between 6KHz-10KHz greater than 70dB (A) is incidence 0%.It is greater than between 10KHz-14KHz
The noise of 70dB (A) is incidence 0%.
Embodiment 6,
It first will be mixing 9.5 minutes in the solid nitrile rubber of 28 parts by weight and the carbon black of 9 parts by weight merging mixer；Then will
The phenolic resin of 6.0 parts by weight, the sulphur of 4.0 parts by weight, the silica inorganic filler of 39 parts by weight, 15 parts by weight lightweight
Magnesia, the basalt mineral fiber of 6 parts by weight, 20 parts by weight barium sulfate merging mixer in, be 94 DEG C close in temperature
Mixing 9.5 minutes in mill；The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3mm；By friction
Molding sheet rubber and the steel plate of the two-sided 0.5mm thickness for being coated with bonding agent stack together, 155 DEG C at a temperature of utilize plane
Bonding by Vulcanization forms noise reduction sheet material on roller mill；Noise reduction sheet material is carried out to 20 minutes secondary in 130 DEG C of continuous tunnel furnace
Solidifying and setting；It is punched into the shape of bloop required for braking automobile.
Test result: hardness: Shao's soft: 82, yield strength: 10.5MPa, elongation: 208%, compression ratio: 18.9%.
Same brake flake products are before and after having used bloop prepared by embodiment 6, noise test Comparative result:
Bloop of the present invention is not used, noise test result: big between 2KHz-4KHz by 1400 noise tests
It is incidence 10.2% in the noise of 70dB (A), the noise that 70dB (A) is greater than between 4KHz-6KHz is incidence 13.5%.
Noise between 6KHz-10KHz greater than 70dB (A) is incidence 9.6%.Making an uproar greater than 70dB (A) between 10KHz-14KHz
Sound is incidence 3.5%.
Using after bloop of the present invention, noise test result: by 1400 noise tests,
Noise between 2KHz-4KHz greater than 70dB (A) is incidence 0.4%, and the noise of 70dB (A) is greater than between 4KHz-6KHz
For incidence 0.1%.Noise between 6KHz-10KHz greater than 70dB (A) is incidence 0%.It is greater than between 10KHz-14KHz
The noise of 70dB (A) is incidence 0%.
In the preparation process of bloop for constituting brake block,
The high temperature resistance and hardness of bloop can be improved, using solid nitrile rubber and phenolic resin to guarantee its resistance to pressure
Degree and yield strength.
Due to " the molding sheet rubber of friction and the two-sided steel plate for being coated with bonding agent being stacked together, straight roll is utilized
Bonding by Vulcanization forms the vulcanization sticking temperature of noise reduction sheet material on milling train " bonding by Vulcanization is set between 140-160 DEG C, it can make
The free phenol obtained in resin slowly sufficiently volatilizees, and can effectively ensure that the stable yield strength of prepared noise reduction version, while
It can effectively avoid vulcanization from generating with the excessively high gas of secondary curing temperature too fast, generate bubble in rubber and form waste Phenomena
Occur；
In secondary curing process, solidification temperature is set at 100-130 DEG C, and curing time was arranged at 20-40 minutes, it can
So that constituting the sheet rubber of acoustical panel can sufficiently solidify, stable compression performance is formed.
In the sheet rubber for constituting bloop, the diameter of used basalt mineral fiber is in 4.0-5.0um, long DEG C
It is 100-150um without slag ball fiber, product hardness increase can be used, there is anti-fatigue ability to enhance performance；Used sulphur
The content of sour barium is not less than 95%, in order to improve the high temperature resistant and abrasion resistance properties of made sheet rubber；Used two
Cilicon oxide filler is silica and content made of firing by high-temperature calcination process 95% or more, be more advantageous to secondly
The stabilization of silica performance, and further increase the stable performance to form the sheet rubber of bloop.
Claims (7)
1. a kind of automotive brake pads bloop, including
The nitrile rubber of 25-35 parts by weight, the sulphur of 2-4 parts by weight, the phenolic resin of 3-7 parts by weight, 20-40 parts by weight
Silica inorganic filler, the carbon black of 5-10 parts by weight, the light magnesium oxide of 10-20 parts by weight, 4.5-10 parts by weight
The barium sulfate of basalt mineral fiber, 15-25 parts by weight.
2. a kind of automotive brake pads bloop as described in claim 1, it is characterised in that: the nitrile rubber is solid
Nitrile rubber.
3. a kind of automotive brake pads bloop as described in claim 1, it is characterised in that: the phenolic resin is unmodified
Phenolic resin.
4. a kind of automotive brake pads bloop as described in claim 1, it is characterised in that: the basalt mineral fiber is
Diameter is 100-150um without slag ball fiber in 4.0-5.0um, length.
5. a kind of automotive brake pads bloop as described in claim 1, it is characterised in that: the content of the barium sulfate is not low
In 95%.
6. a kind of automotive brake pads bloop as described in claim 1, it is characterised in that: the silica filler is warp
Cross high temperature calcination process and content 95% or more.
7. a kind of preparation method of automotive brake pads bloop, comprising the following steps:
Step 1, by solid nitrile rubber and carbon black mixing 5-10 minutes in mixer；
Step 2: phenolic resin, silica inorganic filler, light magnesium oxide, basalt mineral fiber and barium sulfate are added
Into mixer, 80-95 DEG C at a temperature of mixing 5-10 minutes；
The good rubber of above-mentioned mixing friction on purl machine is shaped to the sheet rubber of 0.3-0.5mm by step 3；
Step 4 exists sheet pack sieve for the 0.5-1.0mm thickness that the molding sheet rubber of friction and two-sided or single side are coated with bonding agent
Together, bonding by Vulcanization is carried out on the plane roller mill that temperature is 140-160 DEG C be shaped to noise reduction sheet material；
Step 5: by the noise reduction sheet material of above-mentioned formation merging continuous tunnel furnace, 100-130 DEG C at a temperature of carry out 20-40
The secondary curing sizing of minute；
Step 6: the noise reduction sheet material after solidifying and setting is punched by type shape required for different braking automobiles, is formed and is fixed
Bloop on brake block steel back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552673.0A CN110218371B (en) | 2019-06-25 | 2019-06-25 | Silencing sheet for automobile brake pad and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552673.0A CN110218371B (en) | 2019-06-25 | 2019-06-25 | Silencing sheet for automobile brake pad and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110218371A true CN110218371A (en) | 2019-09-10 |
| CN110218371B CN110218371B (en) | 2024-08-09 |
Family
ID=67814700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910552673.0A Active CN110218371B (en) | 2019-06-25 | 2019-06-25 | Silencing sheet for automobile brake pad and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110218371B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06234866A (en) * | 1993-02-09 | 1994-08-23 | Hitachi Chem Co Ltd | Production of friction material |
| CN102729540A (en) * | 2012-07-04 | 2012-10-17 | 株洲时代电气绝缘有限责任公司 | Vehicle silencing sheet and preparation method thereof |
| CN103603896A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | Disc brake pad of automobile |
| CN104877631A (en) * | 2015-05-12 | 2015-09-02 | 长春特必克世立汽车零部件有限公司 | Drum-type brake pad friction material with high impact strength |
| CN105295838A (en) * | 2015-11-18 | 2016-02-03 | 长春特必克世立汽车零部件有限公司 | Drum type brake lining friction material and drum type brake lining preparation method |
| CN105623187A (en) * | 2016-01-28 | 2016-06-01 | 捷通磨擦材料（昆山）有限公司 | Brake pad for textile twisters and preparation method thereof |
| CN106905572A (en) * | 2015-12-23 | 2017-06-30 | 烟台鑫海耐磨胶业有限公司 | A kind of damped adhesive for brake-shoes |
| CN107191516A (en) * | 2017-05-26 | 2017-09-22 | 山东交通职业学院 | A kind of automobile brake sheet without steel fibre |
-
2019
- 2019-06-25 CN CN201910552673.0A patent/CN110218371B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06234866A (en) * | 1993-02-09 | 1994-08-23 | Hitachi Chem Co Ltd | Production of friction material |
| CN102729540A (en) * | 2012-07-04 | 2012-10-17 | 株洲时代电气绝缘有限责任公司 | Vehicle silencing sheet and preparation method thereof |
| CN103603896A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | Disc brake pad of automobile |
| CN104877631A (en) * | 2015-05-12 | 2015-09-02 | 长春特必克世立汽车零部件有限公司 | Drum-type brake pad friction material with high impact strength |
| CN105295838A (en) * | 2015-11-18 | 2016-02-03 | 长春特必克世立汽车零部件有限公司 | Drum type brake lining friction material and drum type brake lining preparation method |
| CN106905572A (en) * | 2015-12-23 | 2017-06-30 | 烟台鑫海耐磨胶业有限公司 | A kind of damped adhesive for brake-shoes |
| CN105623187A (en) * | 2016-01-28 | 2016-06-01 | 捷通磨擦材料（昆山）有限公司 | Brake pad for textile twisters and preparation method thereof |
| CN107191516A (en) * | 2017-05-26 | 2017-09-22 | 山东交通职业学院 | A kind of automobile brake sheet without steel fibre |
Non-Patent Citations (3)
| Title |
|---|
| 刘伯威;陈杰;杨阳;陈刚;: "酚醛树脂含量对汽车摩擦材料性能的影响", 粉末冶金工业, no. 05, 10 October 2017 (2017-10-10), pages 24 - 30 * |
| 林荣会 等: "石油钻机用新型刹车块的开发", 《机械工程材料》 * |
| 林荣会 等: "石油钻机用新型刹车块的开发", 《机械工程材料》, vol. 35, no. 12, 31 December 2011 (2011-12-31), pages 77 - 81 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110218371B (en) | 2024-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103119120B (en) | Asbestos-free friction material composition, the friction materials employing said composition and friction member | |
| JP5981839B2 (en) | Friction material | |
| CN101555920B (en) | Ceramic brake pad of high-performing automobile | |
| JP3998879B2 (en) | Friction material | |
| US10125256B2 (en) | Composition for friction material | |
| US8247472B2 (en) | Friction material and production method of friction material | |
| CN105111532A (en) | Calcium carbonate whisker reinforced rubber base friction material and preparation method therefor | |
| JP2010077341A (en) | Brake friction material | |
| CN110628171A (en) | Friction material, long-service-life friction lining and preparation method thereof | |
| CN110997857B (en) | Friction material | |
| CN109737161A (en) | A kind of commercial vehicle drum brakes sheet material of low noise | |
| EP1482203A1 (en) | Friction material | |
| CN110218371A (en) | A kind of automotive brake pads bloop and preparation method thereof | |
| CN102401052A (en) | High-friction synthetic brake shoe for high-power XHN5 locomotive, preparation method and application thereof | |
| JP2867661B2 (en) | Friction material and method of manufacturing the same | |
| CN114044948A (en) | Dual-protection composition, wear-resistant material, brake drum type sheet and preparation method | |
| JPH0971768A (en) | Friction material | |
| US8047350B2 (en) | Friction lining | |
| CN114382812B (en) | Friction material, friction body, brake pad and preparation method of friction material | |
| CN117380953B (en) | Environment-friendly friction material for electromagnetic brake and preparation method thereof | |
| CN114382813B (en) | Friction material for dual brake pad of carbon ceramic brake disc, preparation method and application thereof | |
| JP2009132783A (en) | Composite friction adjusting material for friction material | |
| CN114907630B (en) | Wear-resistant composition, synthetic brake pad prepared from wear-resistant composition and preparation method of wear-resistant composition | |
| JPH0741567A (en) | Friction material | |
| JP2019059941A (en) | Friction material composition, and friction material and member using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240712 Address after: 053800 Intersection of Zhongcheng Road and Jiangyuan Street, High tech Industrial Development Zone, Gucheng County, Hengshui City, Hebei Province Applicant after: Hebei Yizhong Material Technology Co.,Ltd. Country or region after: China Applicant after: HEBEI XINGYUE BRAKING ELEMENT CO.,LTD. Applicant after: Hengshui Jingyun Machinery and Electrical Equipment Co.,Ltd. Address before: 053800 North End East of Qingnian Road, Zhengkou Town, Gucheng County, Hengshui City, Hebei Province Applicant before: Hengshui Jingyun Machinery and Electrical Equipment Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant |