Friction material for brake-shoe of heavy axle-load wagon, and preparation method of wagon brake-shoe

A technology of friction material and large axle load, which is applied in the direction of railway braking system, railway car body parts, brakes with brake parts, etc., can solve the problems of wheel scratches, short service life, serious metal embedding, etc., and achieve friction Stable performance and good wear resistance

Active Publication Date: 2014-05-28
BEIJING RAILWAY STAR FORTUNE HIGH TECH
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  • Application Information

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Problems solved by technology

[0003] The existing brake shoes made of resin as the bonding system have insufficient friction performance, friction body is easy to break and fall off, metal inlay is serious, and it is easy to cause wheel scratches, thermal damage, cracks and endanger driving safety. Due to problems such

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  • Friction material for brake-shoe of heavy axle-load wagon, and preparation method of wagon brake-shoe
  • Friction material for brake-shoe of heavy axle-load wagon, and preparation method of wagon brake-shoe
  • Friction material for brake-shoe of heavy axle-load wagon, and preparation method of wagon brake-shoe

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flow chart of a method for preparing a friction material for a brake shoe of a railway freight car with a large axle load provided by an embodiment of the present invention. figure 1 The preparation method described in comprises:

[0028] Step 11: Extract the raw materials of each com...

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Abstract

The invention discloses a friction material for brake-shoe of heavy axle-load wagon, and a preparation method of a brake-shoe of heavy axle-load wagon. The preparation method of the friction material comprises the following steps: preparing raw materials of the friction material according to corresponding weight ratio of each raw material; adding the prepared raw materials into a meshing-type internal mixer to carry out an internal heating treatment and an internal modulating treatment; discharging the processed raw materials, grinding, and finally granulating so as to obtain the friction material. The method can obtain a friction material having a stable friction performance and good wear resistant property; and at the same time the friction material can be used to manufacture braking parts which can meet the application requirements of heavy axle-load wagon.

Description

technical field [0001] The invention relates to the technical field of railway equipment, in particular to a friction material for a brake shoe of a freight car with a large axle load and a preparation method for the brake shoe of a freight car. Background technique [0002] At present, in the field of railway equipment technology, the requirements for the brake shoes of large-axle-loaded freight cars are different from those of other locomotives and vehicles, and new requirements are put forward for the friction materials and the manufacture of brake shoes. Taking railway wagons as an example, most of the brake shoes for railway wagons currently in use are made of materials with resin as the bonding system, which are prepared by hot pressing. Under normal circumstances, its performance can basically meet the braking requirements, but when the railway freight car is under heavy load and high-speed driving, such as the railway freight car with a full load weight of more than ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L9/06C08L61/06C08K13/04C08K7/06C08K3/04C08K3/08C08K3/06C08K5/40C08K5/17C08K3/34C08K3/22C08K3/30B29B7/00B29C43/58B61H1/00
Inventor 周建华张旭锋霍孟申
Owner BEIJING RAILWAY STAR FORTUNE HIGH TECH
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