KR20160140091A - Eco-friendly non-asbestos friction material composition for rubber tire of light rail transit and the friction pad - Google Patents
Eco-friendly non-asbestos friction material composition for rubber tire of light rail transit and the friction pad Download PDFInfo
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- KR20160140091A KR20160140091A KR1020150076231A KR20150076231A KR20160140091A KR 20160140091 A KR20160140091 A KR 20160140091A KR 1020150076231 A KR1020150076231 A KR 1020150076231A KR 20150076231 A KR20150076231 A KR 20150076231A KR 20160140091 A KR20160140091 A KR 20160140091A
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- 239000002783 friction material Substances 0.000 title claims abstract description 52
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 229920001971 elastomer Polymers 0.000 title claims abstract description 16
- 239000010425 asbestos Substances 0.000 title abstract description 18
- 229910052895 riebeckite Inorganic materials 0.000 title abstract description 18
- 239000000835 fiber Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000012784 inorganic fiber Substances 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 3
- 239000010428 baryte Substances 0.000 claims description 3
- 229910052601 baryte Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 244000226021 Anacardium occidentale Species 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 235000020226 cashew nut Nutrition 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002557 mineral fiber Substances 0.000 claims description 2
- 239000011490 mineral wool Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 239000010455 vermiculite Substances 0.000 claims description 2
- 229910052902 vermiculite Inorganic materials 0.000 claims description 2
- 235000019354 vermiculite Nutrition 0.000 claims description 2
- 229910052845 zircon Inorganic materials 0.000 claims description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F16D65/02—Braking members; Mounting thereof
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
Description
The present invention relates to a non-asbestos environmentally friendly friction material composition for a rubber wheel light rail, and a friction material pad using the same. More particularly, the present invention relates to a friction material pad using a non- While the pad temperature is rapidly increased due to frequent braking action through the characteristics of the porous fiber, it is possible to improve the braking performance by preventing the fade phenomenon in which the friction coefficient is repeatedly decreased, will be.
Generally, light rail is a public transport that compensates for the shortcomings of subways and buses. It is used to mean a light railway, as opposed to 'heavy rail' such as subway-train. In particular, the light rail is suitable for handling traffic demand that connects existing subway lines, trunk lines of small cities, metropolitan cities and satellite cities, because the transportation capacity is moderate between subway and bus,
These light rail transit trains can be used for a variety of purposes including unmanned automatic guided transit (AGT), light rail transit (LRT), monorail, guided busway, magnetic levitation, And Personal Rapid Transit (PRT). The following Patent Documents 1 and 2 disclose techniques relating to such light rail.
Patent Document 1 relates to a track block used for laying a track of a concrete track or a guide tracked rubber wheel light rail, and relates to a track block and a manufacturing method thereof that are easy to replace and have a three-dimensional solid shape, To a method of laying orbits in the field using appropriately manufactured orbital blocks
Patent Document 2 discloses a technique of installing a light rail main line high-priced structure in which a bridge structure such as a pier is removed to solve the problem of urban aesthetics, which has been pointed out as a disadvantage of an expensive light railway, a problem of utilization of the ground space due to occupancy of the underground structure, Problems can be solved, and the construction cost of the lower structure such as the lower foundation construction and the bridge pier construction, which have a large portion of the total construction cost of the light railway high cost structure, can be reduced, which is advantageous in terms of economy.
On the other hand, such a light rail is often used with rubber wheels in consideration of quietness and light weight, and friction materials (brake pads) used for braking rubber wheels at this time have the following problems.
(1) Asbestos, which is known as a cancer-causing substance, may be contained in the friction material, and harmful substances are generated whenever the light rail is braked. There are also moves to ban the use of asbestos and four heavy metals (Pb, Cd, Hg, and Cr) because it can contain four heavy metals (Pb, Cd, Hg and Cr).
(2) Every time the light rail is braked, there is a lot of dust, noise and carbonated smell, which threatens the citizens' health or causes discomfort.
(3) Most of existing friction materials are imported, which requires a large cost for manufacturing and maintenance of light rail.
The present invention has been made in view of this point, and it is an object of the present invention to provide an eco-friendly rubber wheel light rail free wheelless eco-friendly vehicle which can achieve the required performance equal to or higher than conventional friction material pads without using asbestos, It is an object of the present invention to provide a friction material composition and a friction material pad using the friction material composition.
In particular, the use of porous fibers as inorganic or organic fibers improves the strength and thermal dissipation of the friction material pads and reduces the fading phenomenon in which the coefficient of friction decreases as the temperature rises sharply when braking, It is another object of the present invention to provide an asbestos-free environmentally friendly friction material composition for a rubber wheel light rail which can improve efficiency and noise efficiency, and a friction material pad using the same.
In order to accomplish the above object, the present invention provides a non-asbestos environmentally friendly friction material composition for a light rail of a rubber wheel,
Friction improver 3 to 15% by weight;
Filler 20 to 50% by weight; And
Organic stabilizer 3 to 15% by weight; of
.
The present invention also includes a friction material pad using a composition according to the present invention,
Friction improver 3 to 15% by weight;
Filler 20 to 50% by weight; And
Organic stabilizer 3 to 15% by weight;
Heated at a temperature of 130 to 160 DEG C and a pressure of 200 to 450 kg / cm < 2 > to form a pad shape, and then heat-treated at 150 to 250 DEG C for 6 to 12 hours.
The asbestos green friction material composition for a rubber wheel light rail according to the present invention and the friction material pad using the same have the following effects.
(1) Even if asbestos is not used, it is possible to obtain the physical property effect which is equal to or better than the required property required in the rubber wheel used in the light rail.
(2) By using asbestos, it is possible to eliminate the harmful factors that may cause harm to the human body by the dust generated in the friction material pad.
(3) Particularly, since copper or brass fibers are used as the metal fiber, the prevention of rust that may occur due to the use of steel, and the prevention of rusting of the four heavy metals (Pb, Cd, Hg, and Cr) It is possible to minimize the harm to the human body.
(4) It can be expected to replace the friction pad, which is currently imported most.
(5) Since pores can be ensured by containing porous fibers, it is effective in improving braking force and noise.
(6) When the organic component of the friction material performs braking action, the lubricating action occurs at the friction interface between the disc and the pad due to the thermal decomposition action, thereby reducing the fade phenomenon in which the frictional coefficient is lowered when the temperature rises rapidly during braking repeatedly. Braking action is performed.
FIG. 1 is a graph showing a comparative example of existing friction material pads in the case test of the present vehicle and a wear resistance test result (pad wear amount) of the embodiment according to the present invention.
[Fig. 2] is a graph showing the result of testing the exothermic state in the case test of a vehicle.
[Fig. 3] is a notification about the results of the present test.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and scope of the present invention.
Therefore, the embodiments described in the present specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that there may be water and modifications.
( Friction material Composition)
The non-asbestos environmentally friendly friction material composition according to the present invention does not use steel metal fiber without using asbestos, so that rust generation and 4 heavy metals are not generated, so that porous fibers are contained without harming the human body. It is possible to satisfy the required properties required in the friction material pad in addition to securing proper braking force.
Hereinafter, the friction material composition according to the present invention will be described in more detail as follows.
The construction of the friction material composition according to the present invention is as follows.
Friction improver 3 to 15% by weight;
Filler 20 to 50% by weight; And
3 to 15% by weight of an organic stabilizer.
Here, the binder contains 5 to 12% by weight, and at least one of phenol resin and NBR-modified rubber may be used, and it is most preferable to use phenol resin.
The fibrous agent contains 5 to 20% by weight, and organic fibers and inorganic fibers can be used. At this time, the organic fiber is made of at least one of aramid fiber, glass fiber and mineral fiber, and the inorganic fiber is made of at least one of potassium titanate, rock wool, and ceramic fiber.
The friction modifier contains 3 to 15% by weight and is composed of at least one of zircon and alumina.
The lubricant contains 5 to 15% by weight and is composed of at least one of graphite and an emulsion.
The metal fibers contain 5 to 20% by weight, and include at least one of copper (Cu), and an alloy including brass. Particularly, since metal fiber does not use fibers made of steel, generation of dust which is harmful to human body like 4 heavy metal dust can be prevented.
The filler contains 20 to 50% by weight, and is composed of at least one of barite and vermiculite.
The organic stabilizer contains 3 to 15% by weight and is made of at least one of Cashew Dust, nitrile rubber (NBR), black rubber and organic matter.
In the friction material composition according to the present invention, asbestos is replaced, the bonding strength of the friction material pad is maintained through the fiber material and the metal fiber, and the braking performance and the job improvement effect can be obtained by improving the fade characteristics and the friction coefficient. This will be described with reference to a test result while explaining a "friction pad" to be described later.
( Friction material pad)
The present invention includes a friction material pad using the friction material composition described above. At this time, the friction material pad is composed of the composition described in the above-mentioned "friction material composition ", and the composition is prepared by pressurizing thermoforming and heat treatment under predetermined conditions. Here, the detailed description of the composition of the friction material pad is omitted here, and the production conditions and test results of the friction material pad according to the present invention are described in turn.
First, the friction material pad of the present invention presses the "friction material composition" as described above at a predetermined pressure and temperature. At this time, the temperature and pressure are heated to 130 to 160 ° C and 200 to 450 kg / cm 2, respectively.
After the heating and pressing, the substrate is heat-treated for a predetermined time, for example, 6 to 12 hours. This is because the material of the inside of the friction material is made uniform so that the friction material pad is made uniform as a whole.
Tests of the friction material pads according to the present invention thus fabricated are as follows. The following friction material pad test was performed according to "KS Friction Material Test Specification ". The specimens used at this time were formulated as shown in Table 1 below.
division
Example 1 (% by weight)
Example 2 (% by weight)
Example 3 (% by weight)
Binder (phenolic resin)
8
8
8
Textile (aramid)
12
15
19
Friction improver (Zirgon)
12
10
8
Lubricant (graphite)
11
9
7
Metal fiber (Cu fiber)
10
13
15
Organic stabilizer (NBR)
5
7
3
Filler (barite)
42
38
40
In the embodiment of the friction material pad thus manufactured, the surface contacting with the brake disk was polished and the coating treatment was performed to improve the durability.
<The amount of wear Property value Test results>
The coefficient of friction and the amount of wear were inspected by the Korea Institute of Industrial Technology Testing (KITA), and the results were analyzed using Rockwell hardness tester (AR-10 model of Akashi Corporation), universal material testing machine (DAEKYYUNG TECH & TESTERS CO., LTE DTU-900HD) TOYO DENKI SEIZO KK) (Test Report No .: 14-059886-01, Issued on January 16, 2015).
Here, the hardness in [Table 2] is the result of measurement with a dynamo tester, and the coefficient of friction and wear amount in [Table 3] are the results of tests in accordance with KS R 1072: 2008.
<Results of Asbestos Analysis>
The asbestos analysis test was commissioned by the "Korea Chemical Fusion Test Institute" and the result was reported on the report TAH-001450 (Received on February 03, 2015). At this time, four samples were tested according to EPA-600 / M4-82-020. As a result of the test on each of the samples (A to D), asbestos was not detected as shown in [Table 4] to [Table 7].
<4 major heavy metal analysis results>
The test for the 4 heavy metals was commissioned by "Korea Chemical Fusion Test Institute" and the result was notified to TAH-000831 (Received on Jan. 21, 2015). The test results are shown in [Table 8] to [Table 11] for the four specimens (A to D), respectively. Detectability was found to be "undetectable" in all four heavy metals.
< Current examination Results>
The test was carried out by Busan Transportation Corporation. The results are as follows.
1. Abrasion resistance test
As a result of comparing the monthly average wear amount (7,000 km / month), it can be seen that the wear amount of the conventional friction material pad (brown color line) and the embodiment (sky blue line) are equal to each other as in FIG.
2. Heat test
FIG. 2 is a graph showing the temperature of the brake disk, and the graphs showing the axial temperature of the axle of the axle, respectively, in comparison between the heating state of the comparative example (a brown color line) and the embodiment (a sky blue line).
2, it can be seen that the temperature of the brake disk is about 6 ° C lower than that of the comparative example and the axial temperature of the axle is about 5 ° C lower than that of the comparative example.
3. Exact position Stopping precision
Table 12 shows the result of the accuracy of the positional accuracy performed in the upper line (An-seong-min-min) and the lower line (min-min-min-station).
As a result of the accuracy test, the average (followability) of the comparative example was +16, the average (followability) of the example was +3, the average (followability) of the comparative example was +10 in the case of the downline (downline) (Followability) is -3. From this, it can be said that the embodiment is more accurate than the comparative example.
As described above, it can be seen that the friction material pad made of the friction material composition according to the present invention is equivalent to or superior to the conventional friction material pad, and it can be seen that the running safety and durability performance are good as shown in FIG.
Claims (9)
5 to 20% by weight of a fibrous agent;
3 to 15% by weight of a friction modifier;
5 to 15% by weight of a lubricant;
5 to 20% by weight of a metal fiber;
20 to 50% by weight of a filler; And
3 to 15% by weight of an organic stabilizer;
By weight of the friction material.
Wherein the binder comprises at least one of a phenol resin and an NBR modified rubber.
As the fibrous agent, organic fiber and inorganic fiber can be used,
Wherein the organic fiber comprises at least one of aramid fiber, glass fiber and mineral fiber,
Wherein the inorganic fibers include at least one of potassium titanate, rock wool, and ceramic fibers.
Wherein the friction modifier comprises at least one of zircon and alumina.
Wherein the lubricant comprises at least one of graphite and emulsified material.
Wherein the metal fiber comprises at least one of copper (Cu) and an alloy including brass.
Wherein the filler comprises at least one of a barite and a vermiculite.
Wherein the organic stabilizer comprises at least one of Cashew Dust, Nitrile Rubber (NBR), Black Rubber, and Organic Matter.
5 to 12% by weight binder;
5 to 20% by weight of a fibrous agent;
3 to 15% by weight of a friction modifier;
5 to 15% by weight of a lubricant;
5 to 20% by weight of a metal fiber;
20 to 50% by weight of a filler; And
3 to 15% by weight of an organic stabilizer;
Characterized in that it is heated and pressurized at a temperature of 130-160 DEG C and a pressure of 200-450 kg / cm < 2 > to form a pad shape and then heat-treated at 150-250 DEG C for 6-12 hours. .
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150076231A KR20160140091A (en) | 2015-05-29 | 2015-05-29 | Eco-friendly non-asbestos friction material composition for rubber tire of light rail transit and the friction pad |
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| KR1020150076231A KR20160140091A (en) | 2015-05-29 | 2015-05-29 | Eco-friendly non-asbestos friction material composition for rubber tire of light rail transit and the friction pad |
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| KR20160140091A true KR20160140091A (en) | 2016-12-07 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061574A (en) * | 2017-05-26 | 2017-08-18 | 山东金麒麟股份有限公司 | A kind of polynary resin material of modified rubber for disk type brake disc and purposes |
| CN108412926A (en) * | 2018-04-30 | 2018-08-17 | 安徽路安汽车零部件有限公司 | A kind of carbon fiber ceramic brake block of high thermal conduction effect and preparation method thereof |
| CN109628065A (en) * | 2019-01-04 | 2019-04-16 | 上海华信摩擦材料有限公司 | A kind of brake block friction material and preparation method thereof |
| CN110723925A (en) * | 2019-10-15 | 2020-01-24 | 武汉理工大学 | Curved hole runner ceramic-based brake pad composite material and preparation method thereof |
| KR20200048455A (en) * | 2018-10-30 | 2020-05-08 | 주식회사 에스비앤에프 엔지니어링 | Friction material for brake pad |
| KR20210046143A (en) * | 2019-10-18 | 2021-04-28 | (주)홍성브레이크 | Friction Material for Shoe of Highspeed Railway |
| CN113512266A (en) * | 2021-04-29 | 2021-10-19 | 大冶市启发矿产品有限公司 | Friction material for motor vehicle |
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| KR101416157B1 (en) | 2012-02-03 | 2014-07-09 | 강남훈 | Easily replaceable track block having three dimensions solid shape and method for manufacturing the same, method for laying concrete track and method for laying track of automated guideway type light rail transit using the same track block |
| KR20150009730A (en) | 2013-07-17 | 2015-01-27 | 한국철도기술연구원 | Air-floating elevated structures of Light Rail Transit |
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- 2015-05-29 KR KR1020150076231A patent/KR20160140091A/en active Search and Examination
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101416157B1 (en) | 2012-02-03 | 2014-07-09 | 강남훈 | Easily replaceable track block having three dimensions solid shape and method for manufacturing the same, method for laying concrete track and method for laying track of automated guideway type light rail transit using the same track block |
| KR20150009730A (en) | 2013-07-17 | 2015-01-27 | 한국철도기술연구원 | Air-floating elevated structures of Light Rail Transit |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061574A (en) * | 2017-05-26 | 2017-08-18 | 山东金麒麟股份有限公司 | A kind of polynary resin material of modified rubber for disk type brake disc and purposes |
| CN107061574B (en) * | 2017-05-26 | 2019-09-10 | 山东金麒麟股份有限公司 | A kind of polynary resin material of modified rubber for disk type brake disc and purposes |
| CN108412926A (en) * | 2018-04-30 | 2018-08-17 | 安徽路安汽车零部件有限公司 | A kind of carbon fiber ceramic brake block of high thermal conduction effect and preparation method thereof |
| KR20200048455A (en) * | 2018-10-30 | 2020-05-08 | 주식회사 에스비앤에프 엔지니어링 | Friction material for brake pad |
| CN109628065A (en) * | 2019-01-04 | 2019-04-16 | 上海华信摩擦材料有限公司 | A kind of brake block friction material and preparation method thereof |
| CN110723925A (en) * | 2019-10-15 | 2020-01-24 | 武汉理工大学 | Curved hole runner ceramic-based brake pad composite material and preparation method thereof |
| CN110723925B (en) * | 2019-10-15 | 2021-07-06 | 武汉理工大学 | Curved hole runner ceramic-based brake pad composite material and preparation method thereof |
| KR20210046143A (en) * | 2019-10-18 | 2021-04-28 | (주)홍성브레이크 | Friction Material for Shoe of Highspeed Railway |
| CN113512266A (en) * | 2021-04-29 | 2021-10-19 | 大冶市启发矿产品有限公司 | Friction material for motor vehicle |
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