Non-ferrous Metal

Cast Iron anchor brake shoe / Composite Brake Block for Locomotive Part

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Brief introduction

Our cast iron brake block enjoys many advantages including hardness, impact strength and so on. It consists of two parts, the cast iron and the steel support. Both the surface and core of the cast iron have the hardness within the range of 197< HB< 255.

When facing subsequent impacts to the brake block or brake shoe, the steel support must remain intact and attached to the iron places. The connection bridge may possibly become detached but should not show any soundness defects. Separated from the brake shoe, the support must be able to withstand the bend test with cracking or breaking.

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Theory

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The brake shoe are located on the wheel tread.

when braking, two pieces of brake block clamp the wheel to make it stop.

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?Physical and mechanical properties of composite

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Characteristic | Unit | Value | Testing Method |
Specific Gravity | gr/cm3 | 1,7 – 2,4 | ASTM D792 |
Coefficient of Friction | ? | 0,14 – 0,22 | ASTM D1894 |
Hardness | HRR | 70 – 105 | ASTM D785 |
Crush Strength | N/cm2 | Minimum 2500 | ASTM D695 |
Bending Strength | N/cm2 | 2400 – 4000 | ASTM D790 |
Tensile Strength | N/cm2 | 480 – 1500 | ASTM D3039 |
Shear Strength | N/cm2 | 1500 - 3500 | ASTM D732 |
Heat Resistance: 250oC
Result: Does not melt or?burn for continuous use. |
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Material Character
# # The materials of composite brake block consist of 3 main substances including reinforcing fiber, organic/inorganic filler and resin bound.
# It has a high level of uniformity.
# It can be separated from the backing plate.
# It contains no asbestos, lead, zinc or other mixtures.
# It also contains no toxic materials.
# The hardness of the material is lower than the wheel& acute;s.
# It causes no strong smell in friction.


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Backing?plate


Backing plate for a trains& acute; composite brake block must meet the following criteria. Firstly, it is made of ST-41 steel plate, and is constructed to transmit the braking force to the composite material. Secondly, there should be a binding structure between the composite material and backing plate, thus forming into a integrated unit and ensuring sufficient bending strength and stiffness.

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Brand | SUYU |
Name | ISO Quolified Cast Iron Anchor Brake block for Locomotive Part |
Type | ?According to customers’ drawings, for train or wagon |
Application | Heavy Duty Truck.Train.Bus,Automobile,petroleum drilling machine. ? |
Material | Cast iron HT200 | Composite material |
Details | Refer to standard GB/T 9439-1988 | 1. rail way composite Brake shoe Material: Composite material,high friction composite brake shoe,low friction composite brake shoe 2. Advantage: -- Composite friction material bearing high energy braking; -- High coefficient of friction and stability, -- small heat fade for coefficient of friction, -- Temperature?insensitiveness, -- Develop according to the samples or drawings -- Certification:ISO9001-2000 |
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