CN111425542A - High-wear-resistance low-metal brake pad and preparation method thereof - Google Patents
High-wear-resistance low-metal brake pad and preparation method thereof Download PDFInfo
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- CN111425542A CN111425542A CN202010279472.0A CN202010279472A CN111425542A CN 111425542 A CN111425542 A CN 111425542A CN 202010279472 A CN202010279472 A CN 202010279472A CN 111425542 A CN111425542 A CN 111425542A
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- brake pad
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- metal brake
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical group [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 210000002268 wool Anatomy 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
Images
Classifications
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- 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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
- F16D2200/0021—Steel
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of vehicle braking devices, in particular to a high-wear-resistance low-metal brake pad and a preparation method thereof. Prepared by adhesive, reinforcing fiber, friction performance regulator and filler; wherein the binder comprises a resin and a rubber powder; the reinforced fiber comprises aramid fiber and steel wool fiber; the friction performance regulator comprises magnesium oxide, antimony sulfide, aluminum oxide and reduced iron powder; the filler is barium sulfate and calcium carbonate. The high-wear-resistance low-metal brake pad has the advantages of high-temperature recession resistance, high friction coefficient in emergency braking or high-speed braking, low dust, low noise, long service life, comfortable braking, environment-friendly requirement satisfaction and the like.
Description
Technical Field
The invention relates to the technical field of vehicle braking devices, in particular to a high-wear-resistance low-metal brake pad and a preparation method thereof.
Background
With the rapid development of automobile industry in China, the requirements on automobile speed and performance are higher and higher, and meanwhile, higher requirements are provided for automobile braking technology. The brake pad is used as a vital safety part in the automobile braking process, the quality of the performance of the brake pad directly determines the quality of the automobile braking performance, and the driving safety of each automobile is related. At present, the automobile has high running speed, and when the automobile is continuously or emergently braked, the temperature of a brake pad and a brake disc reaches 600-. At present, the friction coefficient of emergency braking of most brake pads sold in the market can only reach 0.2-0.25 when the driving speed of an automobile exceeds 100 km/h; when the brake is applied at the continuous high temperature of 600 ℃ and 700 ℃, the friction coefficient is generally lower than 0.2; the friction coefficient is far lower than the international consensus that the friction coefficient is not lower than 0.3, and great potential safety hazard is caused to service braking.
In addition, along with the improvement of living standard of people, the requirements on the brake pad are also improved, and the brake pad has requirements on low dust, low noise, low metal, environmental protection and the like besides the requirement of good friction coefficient.
In the prior art, the mainstream automobile brake pads are divided into semi/low metal-based and ceramic-based friction materials. The semi/low metal brake pad has good braking performance, but more dust and noise and poorer braking comfort; the ceramic brake pad has good dust falling and noise performance, but has poor braking performance, and when the temperature is higher than 350 ℃, high-temperature recession is easy to generate, so that the driving safety is influenced. In conclusion, the semi/low metal matrix and the ceramic matrix have the defects of high-temperature decline, poor braking effect, much dust, high noise, poor braking comfort, short service life and the like.
Disclosure of Invention
The invention aims to provide a high-wear-resistance low-metal brake pad and a preparation method thereof, so as to solve the technical problems.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a low metal brake block of high abrasion which characterized in that: prepared by adhesive, reinforcing fiber, friction performance regulator and filler; wherein the binder comprises a resin and a rubber powder; the reinforced fiber comprises aramid fiber and steel wool fiber; the friction performance regulator comprises magnesium oxide, antimony sulfide, aluminum oxide and reduced iron powder; the filler is barium sulfate and calcium carbonate.
Further, the weight parts of various raw materials are as follows:
the preparation method of the high-wear-resistance low-metal brake pad comprises the following steps:
1. preparing materials: weighing various raw materials according to a raw material formula;
2. mixing materials: putting various raw materials into a plow harrow type mixer to be mixed for 5-10 minutes;
3. cold-type pressing: weighing the mixed materials according to the model of the brake pad, pouring the mixed materials into a cold mold under the pressure of 100-2Pressing into cold-forming block;
4. hot pressing: placing the cold block into a hot-pressing mold with a pressure of 200-2The hot pressing temperature is 140-;
5. and (3) heat treatment: heating from room temperature to 175 deg.C for 1 hr; keeping the temperature for 1 hour, raising the temperature of 175 ℃ to 200 ℃, and using for 1 hour; keeping the temperature for 3 hours, and cooling to room temperature to obtain a semi-finished product;
6. and performing finish machining, plastic spraying and accessory riveting on the semi-finished product after the heat treatment to obtain a finished product.
Has the advantages that: compared with the prior art, the high-wear-resistance low-metal brake pad prepared by the raw material formula and the method overcomes the defects of the existing semi/low-metal-based and ceramic-based brake pads, has the advantages of high temperature recession resistance, high friction coefficient in emergency braking or high-speed braking, low dust, less noise, long service life, comfortable braking, environmental protection requirement satisfaction and the like, and particularly: the aramid fiber and the steel wool fiber can greatly improve the structural strength of the product; magnesium oxide, antimony sulfide, aluminum oxide and the like can greatly improve the high-temperature resistance and wear resistance of the product, improve the safety performance during high-temperature recession and emergency braking, and prolong the service life; the rubber powder can enhance the flexibility of the product, reduce noise and improve the braking comfort. In addition, the preparation method is simple and reliable, has good consistency and is easy for large-scale production.
Drawings
FIG. 1 shows the results of AK-MASTER bench performance test (one);
FIG. 2 shows the results of AK-MASTER bench performance test (two);
FIG. 3 shows the results of the service life test of SAE J2707B bench.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Example 1:
the high-wear-resistance low-metal brake pad is prepared from an adhesive, reinforcing fibers, a friction performance regulator and a filler; wherein the binder comprises a resin and a rubber powder; the reinforced fiber comprises aramid fiber and steel wool fiber; the friction performance regulator comprises magnesium oxide, antimony sulfide, aluminum oxide and reduced iron powder; the filler is barium sulfate and calcium carbonate.
Further, the weight parts of various raw materials are as follows:
example 2:
the high-wear-resistance low-metal brake pad is prepared from an adhesive, reinforcing fibers, a friction performance regulator and a filler; wherein the binder comprises a resin and a rubber powder; the reinforced fiber comprises aramid fiber and steel wool fiber; the friction performance regulator comprises magnesium oxide, antimony sulfide, aluminum oxide and reduced iron powder; the filler is barium sulfate and calcium carbonate.
Further, the weight parts of various raw materials are as follows:
example 3:
the high-wear-resistance low-metal brake pad is prepared from an adhesive, reinforcing fibers, a friction performance regulator and a filler; wherein the binder comprises a resin and a rubber powder; the reinforced fiber comprises aramid fiber and steel wool fiber; the friction performance regulator comprises magnesium oxide, antimony sulfide, aluminum oxide and reduced iron powder; the filler is barium sulfate and calcium carbonate.
Further, the weight parts of various raw materials are as follows:
the preparation method of the high-wear-resistance low-metal brake pad comprises the following steps:
1. preparing materials: weighing various raw materials according to a raw material formula;
2. mixing materials: putting various raw materials into a plow harrow type mixer to be mixed for 5-10 minutes;
3. cold-type pressing: weighing the mixed materials according to the model of the brake pad, pouring the mixed materials into a cold mold under the pressure of 100-2Pressing into cold-forming block;
4. hot pressing: placing the cold block into a hot-pressing mold with a pressure of 200-2The hot pressing temperature is 140-;
5. and (3) heat treatment: heating from room temperature to 175 deg.C for 1 hr; keeping the temperature for 1 hour, raising the temperature of 175 ℃ to 200 ℃, and using for 1 hour; keeping the temperature for 3 hours, and cooling to room temperature to obtain a semi-finished product;
6. and performing finish machining, plastic spraying and accessory riveting on the semi-finished product after the heat treatment to obtain a finished product.
Through tests of Linke (Shanghai) traffic test technology, Inc., the high-wear-resistance low-metal brake pad reaches the international advanced level. Specifically, the method comprises the following steps:
1. the high wear-resistant low-metal brake pad of the present invention was bench performance tested according to the international general AK-MASTER standard, and the test results are shown in fig. 1-2. The test result shows that the nominal friction coefficient of the high-wear-resistance low-metal brake pad is 0.41, the lowest friction coefficient is 0.34, the friction coefficient is at a higher level, and the brake is safe.
2. The service life test of the bench is carried out on the high-abrasion-resistance low-metal brake pad according to the international standard SAE J2707B, and the test result is shown in figure 3, wherein the abrasion of the inner pad is 0.418mm, the abrasion of the outer pad is 0.431mm, and the service requirement is far lower than that of the technical field of 1.5 mm.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (3)
1. The utility model provides a low metal brake block of high abrasion which characterized in that: prepared by adhesive, reinforcing fiber, friction performance regulator and filler; wherein the binder comprises a resin and a rubber powder; the reinforced fiber comprises aramid fiber and steel wool fiber; the friction performance regulator comprises magnesium oxide, antimony sulfide, aluminum oxide and reduced iron powder; the filler is barium sulfate and calcium carbonate.
2. The high wear-resistant low metal brake pad of claim 1, wherein: the weight parts of various raw materials are as follows:
3. the method for preparing a high wear-resistant low-metal brake pad as claimed in claim 1 or 2, wherein: the method comprises the following steps:
(1) preparing materials: weighing various raw materials according to a raw material formula;
(2) mixing materials: putting various raw materials into a plow harrow type mixer to be mixed for 5-10 minutes;
(3) cold-type pressing: weighing the mixed materials according to the model of the brake pad, pouring the mixed materials into a cold mold under the pressure of 100-2Pressing into cold-forming block;
(4) hot pressing: placing the cold block into a hot-pressing mold with a pressure of 200-2The hot pressing temperature is 140-;
(5) and (3) heat treatment: heating from room temperature to 175 deg.C for 1 hr; keeping the temperature for 1 hour, raising the temperature of 175 ℃ to 200 ℃, and using for 1 hour; keeping the temperature for 3 hours, and cooling to room temperature to obtain a semi-finished product;
(6) and performing finish machining, plastic spraying and accessory riveting on the semi-finished product after the heat treatment to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010279472.0A CN111425542A (en) | 2020-04-10 | 2020-04-10 | High-wear-resistance low-metal brake pad and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010279472.0A CN111425542A (en) | 2020-04-10 | 2020-04-10 | High-wear-resistance low-metal brake pad and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111425542A true CN111425542A (en) | 2020-07-17 |
Family
ID=71553854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010279472.0A Pending CN111425542A (en) | 2020-04-10 | 2020-04-10 | High-wear-resistance low-metal brake pad and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111425542A (en) |
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2020
- 2020-04-10 CN CN202010279472.0A patent/CN111425542A/en active Pending
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