CN100543101C - Brake shoe for hump decelerator and manufacture method thereof - Google Patents
Brake shoe for hump decelerator and manufacture method thereof Download PDFInfo
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- CN100543101C CN100543101C CNB2005101120196A CN200510112019A CN100543101C CN 100543101 C CN100543101 C CN 100543101C CN B2005101120196 A CNB2005101120196 A CN B2005101120196A CN 200510112019 A CN200510112019 A CN 200510112019A CN 100543101 C CN100543101 C CN 100543101C
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- strongthener
- hump
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Abstract
The present invention relates to brake shoe for hump decelerator and manufacture method thereof, this brake shoe is made up of brake shoe body, peripheral strongthener, bottom strongthener, described brake shoe body adopts assorted fibre to strengthen resin and fills the matrix material of the high filler that rubs, described peripheral strongthener adopts the fiber-reinforced resin material, and described bottom strongthener adopts iron plate or fiber-reinforced resin material; The manufacture method of this brake shoe comprises processing steps such as getting the raw materials ready, paste mould, moulding.Compared with prior art, the present invention has high friction coefficient, mechanical property and weathering resistance preferably, has characteristics such as wear-resisting, oil resistant, noise be low simultaneously.
Description
Technical field
The present invention relates to a kind of great friction coefficient, high-intensity friction materials and manufacture method thereof, relate in particular to a kind of brake shoe and manufacture method thereof that is applied to hump decelerator.
Background technology
In marshalling yard, on the circuit that lorry is formulated in hump slips back arrival switchyard down, in order to the new car team of marshalling yard.First simplified hump built up in this Bi doffer marshalling yard of Germany in 1876 in the world.Utilize humping, not only can improve working conditions, and can improve shunt efficient and operational capability.Nineteen twenty-four, first uses the mechanized hump of speed reduction unit speed governing to build up in U.S. Ji Busen marshalling yard in the world.1956, first automatic hump with digital computer control humping of cars speed and rolling route built up in the lid Tuo Wei of U.S. marshalling yard in the world.
No matter be mechanized hump, or automatic hump, speed reduction unit is absolutely necessary.The rolling section generally comprises: 1) gradient is 40～60 ‰ accelerating grade; 2) gradient is 1.5～3.5 ‰ gradient within the switching area; 3) intermediate grade.Speed reduction unit is disposed in intermediate grade.It will guarantee not only that lorry enters in the switchyard with speed slowly and arrive on the specified circuit, and will guarantee to be pressed from both sides difficulty after stopping and stop still can start voluntarily behind the speed reduction unit slowly-releasing and slip row.
The structure of speed reduction unit is that spring force is applied on the brake shoe, and the brake shoe clamping wheel increases wheel progressive resistance, to reach the purpose of deceleration.
Existing hump decelerator adopts the direct brake wheel of waste and old steel rail.Because its frictional coefficient is lower, not only can't adapt to mechanize efficiently, automatic hump marshalling yard, be easy to generate great quality accident, and huge noise makes the people be difficult to stand, the severe contamination operating environment.
But,,, only be 0.30～0.45 because frictional coefficient is on the low side if adopt existing synthetic materials; Thermotolerance is relatively poor, and decomposition temperature only is 312 ℃; Intensity is lower, and general shock strength is at 0.5J/cm
2Below, flexural strength is less than 80MPa, can occur the serious piece phenomenon of falling in the use.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of brake shoe for hump decelerator and manufacture method thereof for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
Brake shoe for hump decelerator, it is characterized in that, this brake shoe is made up of brake shoe body, peripheral strongthener, bottom strongthener, described brake shoe body adopts assorted fibre to strengthen resin and fills the matrix material of the high filler that rubs, described peripheral strongthener adopts the fiber-reinforced resin material, and described bottom strongthener adopts iron plate or fiber-reinforced resin material.
The composition (weight percentage) of the matrix material of described assorted fibre enhancing resin and the high filler that rubs of filling is as follows:
Steel fiber 0～30%,
Aramid fiber 0～5%,
Carbon fiber 0～5%,
A6 resin 10～40%,
Corundum 0.5～40%,
Potter's clay 10～30%,
Feldspar 0～20%,
Sepiolite 0～40%,
Barite 0～25%,
Graphite 1～10%.
Described fiber-reinforced resin material adopts continuous fiber to strengthen the A6 resin composite materials, and wherein the content of fiber accounts for matrix material weight 30～90%.
Described continuous fiber is selected from glasscloth, and carbon cloth perhaps is selected from the man-made fiber that comprises polyamide fibre, gluing silk, aramid fiber.
Described iron plate is carried out zinc-plated processing.
Described steel fiber is the metallic substance through wire drawing scraping segment, and its plot ratio is 0.9～1.20cc/g, and diameter is less than 200 μ m, length 0.1～5mm, 1530 ℃ of fusing points.
979 types that described aramid fiber selects for use du pont company to produce.
Described A6 resin is the common resin modified phenol resin of cashew nut shell oil, heterogeneous ring compound and polyimide, and the shock strength of resin is 0.205J/cm
2, flexural strength 68.0MPa, modulus in flexure 2.80GPa, 453.1 ℃ of decomposition temperatures, decompose residues reaches 41.20%.
The manufacture method of brake shoe for hump decelerator, it is characterized in that, this method comprises following processing step: (1). at first the brake shoe body material is steel fiber 0～30% by weight percentage, aramid fiber 0～5%, carbon fiber 0～5%, A6 resin 10～40%, corundum 0.5～40%, potter's clay 10～30%, feldspar 0～20%, sepiolite 0～40%, barite 0～25%, mix in graphite 1～10% plough type mixer, the speed of mainshaft is 200rpm, stir swivel speed and be 3000rpm, time is 3～5min, then mixed compression molding material is put into drying shed, the fugitive constituent weight content that makes compression molding material is less than 1%, and is standby; (2). with continuous fiber cloth dipping A6 resin, control gluing rate is made adhesive plaster in 10～70% weight, is cut into corresponding size, is affixed on mould inner wall; (3). the adhesive plaster that the continuous fiber cloth dipping A6 resin that obtains with galvanized iron sheet or by (2) is made is cut into corresponding size and places mould top; (4). pouring in the mould brake shoe body compression molding material into hot-forming, hot-forming processing parameter is 170～190 ℃ of temperature, pressure 5～20MPa, time 2～10min obtains product.
Can also may further comprise the steps afterwards in step (4): (5). forming composition is put into baking oven, and thermal treatment is 8～12 hours under 150～200 ℃ of conditions, obtains product.
Compared with prior art, the present invention has following characteristics:
(1). have higher and stable frictional coefficient;
(2). can bear greater impact power and shearing force;
(3). all kinds of weathers such as anti-atmospheric aging and adaptation sweltering heat, cold and humidity;
(4). wear-resisting, oil resistant, noise are low.
The present invention has not only improved the marshalling efficient of hump marshalling station, can also be applicable to heavy-duty freight car, has improved production security, has improved operating environment.
Description of drawings
Fig. 1 is the structural representation of product of the present invention; In the accompanying drawing, 3 is brake shoe body, and 2 is peripheral strongthener, and 1 is the bottom strongthener.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1:
Brake shoe body:
Weight percentages
Aramid fiber (Kevlar Pulp979) 2
Carbon fiber 5
A6 resin 20
Corundum 5
Potter's clay 20
Feldspar 18
Barite 25
Graphite 5
Starting material are dropped into the plough type mixer in proportion, stirred 5 minutes, standby.
With gluing silk cloth (thick 0.5～3mm, door width of cloth 1000mm) dipping A6 resin, the gluing rate is 20% weight, is cut into corresponding size, is affixed on mould inner wall and/or patrix.One-sided total thickness is 3～5mm.
The brake shoe body compression molding material is poured in the mould, and the control die temperature is 170～190 ℃, and pressure is 15MPa, and the time is that 5min gets final product.
Made material property is as follows:
1. frictional behaviour:
| Temperature (℃) | 100 | 150 | 200 | 250 | 300 |
| Frictional coefficient | 0.55 | 0.54 | 0.53 | 0.52 | 0.50 |
| Rate of wear (* 10-7cm 3/N·m) | 0.19 | 0.21 | 0.25 | 0.31 | 0.40 |
2. physical and mechanical properties:
Rockwell hardness: HRM90.1,
Shock strength: 0.9J/cm
2,
Flexural strength: 100.1Mpa,
The material breakdown temperature is 455.0 ℃, and percent weight loss is 28.9%.
Embodiment 2:
Brake shoe body:
Weight percentages
Steel fiber 25
A6 resin 25
Corundum 4
Potter's clay 10
Feldspar 15
Barite 15
Graphite 5
With starting material feeding type plough type mixer in proportion, stirred 5 minutes, standby.
Continuous fiber adopts the glasscloth of 1.5mm.
It is the iron plate of 4mm that the bottom strongthener adopts thickness, and surface galvanizing is handled, and uses adhesive treatment, makes it can be bonding well with the brake shoe body material.
Manufacture method is with embodiment 1.
Made material property is as follows:
1. frictional behaviour:
| Temperature (℃) | 100 | 150 | 200 | 250 | 300 |
| Frictional coefficient | 0.50 | 0.52 | 0.53 | 0.55 | 0.54 |
| Rate of wear (* 10-7cm 3/N·m) | 0.21 | 0.32 | 0.41 | 0.51 | 0.60 |
2. physical and mechanical properties:
Rockwell hardness: HRM 78.1,
Shock strength: 4.5J/cm
2,
Flexural strength: 256.7Mpa.
Above-mentioned two kinds of materials are applied in the hump decelerator, and frictional coefficient is good, and lorry slows down rapidly, and reliable and stable, noise obviously reduces, and after the use, surperficial zero defect satisfies applying working condition substantially, meets customer requirements.
Claims (8)
1. brake shoe for hump decelerator, it is characterized in that, this brake shoe is made up of brake shoe body, peripheral strongthener, bottom strongthener, described brake shoe body adopts assorted fibre to strengthen resin and fills the matrix material of the high filler that rubs, described peripheral strongthener adopts the fiber-reinforced resin material, and described bottom strongthener adopts iron plate or fiber-reinforced resin material.
2. brake shoe for hump decelerator according to claim 1 is characterized in that, the composition and the weight percentage thereof of the matrix material of described assorted fibre enhancing resin and the high filler that rubs of filling are as follows:
Steel fiber 25～30%,
Aramid fiber 1～5%,
Carbon fiber 0～5%,
A6 resin 10～40%,
Corundum 0.5～40%,
Potter's clay 10～30%,
Feldspar 0～20%,
Sepiolite 0～40%,
Barite 0～25%,
Graphite 1～10%;
Described A6 resin is the common resin modified phenol resin of cashew nut shell oil, heterogeneous ring compound and polyimide, and the shock strength of resin is 0.205J/cm
2, flexural strength 68.0MPa, modulus in flexure 2.80GPa, 453.1 ℃ of decomposition temperatures, decompose residues reaches 41.20%.
3. brake shoe for hump decelerator according to claim 1 is characterized in that, described fiber-reinforced resin material adopts continuous fiber to strengthen the matrix material of A6 resin, and wherein the content of fiber accounts for matrix material weight 30～90%; Described A6 resin is the common resin modified phenol resin of cashew nut shell oil, heterogeneous ring compound and polyimide, and the shock strength of resin is 0.205J/cm
2, flexural strength 68.0MPa, modulus in flexure 2.80GPa, 453.1 ℃ of decomposition temperatures, decompose residues reaches 41.20%.
4. brake shoe for hump decelerator according to claim 3 is characterized in that described continuous fiber is selected from glasscloth, and a kind of in the carbon cloth perhaps is selected from a kind of in the man-made fiber of polyamide fibre, polyvinyl, gluing silk, aramid fiber.
5. brake shoe for hump decelerator according to claim 1 is characterized in that described iron plate is carried out zinc-plated processing.
6. brake shoe for hump decelerator according to claim 2 is characterized in that, described steel fiber is the metallic substance through wire drawing scraping segment, and its plot ratio is 0.9～1.20cc/g, and diameter is less than 200 μ m, length 0.1～5mm, 1530 ℃ of fusing points.
7. the manufacture method of brake shoe for hump decelerator, it is characterized in that, this method comprises following processing step: (1). at first the brake shoe body material is steel fiber 25～30% by weight percentage, aramid fiber 1～5%, carbon fiber 0～5%, A6 resin 10～40%, corundum 0.5～40%, potter's clay 10～30%, feldspar 0～20%, sepiolite 0～40%, barite 0～25%, graphite 1～10% drops in the plough type mixer and mixes, the speed of mainshaft is 200rpm, stir swivel speed and be 3000rpm, time is 3～5min, then mixed compression molding material is put into drying shed, the fugitive constituent weight content that makes compression molding material is less than 1%, and is standby; (2). with continuous fiber cloth dipping A6 resin, control gluing rate is made adhesive plaster in 10～70% weight, is cut into corresponding size, is affixed on mould inner wall; (3). the adhesive plaster that the continuous fiber cloth dipping A6 resin that obtains with galvanized iron sheet or by (2) is made is cut into corresponding size and places mould top; (4). pouring in the mould brake shoe body compression molding material into hot-forming, hot-forming processing parameter is 170～190 ℃ of temperature, pressure 5～20MPa, time 2～10min obtains product; Described A6 resin is the common resin modified phenol resin of cashew nut shell oil, heterogeneous ring compound and polyimide, and the shock strength of resin is 0.205J/cm
2, flexural strength 68.0MPa, modulus in flexure 2.80GPa, 453.1 ℃ of decomposition temperatures, decompose residues reaches 41.20%.
8. the manufacture method of brake shoe for hump decelerator according to claim 7 is characterized in that, and is further comprising the steps of afterwards in step (4): (5). forming composition is put into baking oven, and thermal treatment is 8～12 hours under 150～200 ℃ of conditions, obtains product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101120196A CN100543101C (en) | 2005-12-27 | 2005-12-27 | Brake shoe for hump decelerator and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101120196A CN100543101C (en) | 2005-12-27 | 2005-12-27 | Brake shoe for hump decelerator and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990813A CN1990813A (en) | 2007-07-04 |
| CN100543101C true CN100543101C (en) | 2009-09-23 |
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|---|---|---|---|
| CNB2005101120196A Expired - Fee Related CN100543101C (en) | 2005-12-27 | 2005-12-27 | Brake shoe for hump decelerator and manufacture method thereof |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8235185B2 (en) * | 2008-08-06 | 2012-08-07 | Rfpc Holding Corp. | Side reinforced railway brake shoe |
| RU2483232C1 (en) * | 2011-11-30 | 2013-05-27 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction item |
| CN102585768B (en) * | 2012-01-09 | 2014-05-14 | 丁庆军 | Braided fiber-based friction material and preparation method thereof |
| RU2498125C1 (en) * | 2012-03-20 | 2013-11-10 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction item |
| RU2513353C1 (en) * | 2012-12-03 | 2014-04-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction article |
| RU2513882C1 (en) * | 2012-12-03 | 2014-04-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction article |
| RU2513351C1 (en) * | 2012-12-19 | 2014-04-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction article |
| RU2523347C1 (en) * | 2013-01-29 | 2014-07-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Method to produce brake pad with noise protection |
| RU2535805C1 (en) * | 2013-07-23 | 2014-12-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction item |
| RU2535808C1 (en) * | 2013-07-23 | 2014-12-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction item |
| RU2536567C1 (en) * | 2013-07-30 | 2014-12-27 | Открытое акционерное общество "Термостойкие изделия и инженерые разработки" (ОАО "ТИИР") | Friction item |
| RU2549045C1 (en) * | 2013-12-05 | 2015-04-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction article |
| RU2623787C1 (en) * | 2016-01-11 | 2017-06-29 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction product |
| RU2653222C2 (en) * | 2016-10-31 | 2018-05-07 | Акционерное общество "Термостойкие изделия и инженерные разработки" (АО "ТИИР") | Composition brake of railway vehicles, formed under nanoparticle tribocoupling |
-
2005
- 2005-12-27 CN CNB2005101120196A patent/CN100543101C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
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| 铁路车辆用聚合物基复合材料制动闸瓦. 黄凯兵等.电力机车与城轨车辆，第27卷第2期. 2004 |
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|---|---|
| CN1990813A (en) | 2007-07-04 |
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Effective date of registration: 20140211 Address after: 201505 No. 88 fish pond road, Huang Lou, Chuansha Town, Shanghai, Pudong New Area Patentee after: SHANGHAI RENPHEN COMPOSITE MARERIALS Co.,Ltd. Patentee after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: 201505 No. 88 fish pond road, Huang Lou, Chuansha Town, Shanghai, Pudong New Area Patentee before: SHANGHAI RENPHEN COMPOSITE MARERIALS Co.,Ltd. |
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