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A technology for trucks and brake pads, applied in friction linings, other chemical processes, chemical instruments and methods, etc., can solve problems such as thermal recession, and achieve the effects of preventing high temperature cracking, improving comprehensive performance and good appearance
Inactive Publication Date: 2009-10-14
SHANDONG DAWANG XINYI AUTOMOBILE FITTING
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[0003] The purpose of the present invention is to provide a method of synchronously developing and absorbing the design idea of the advanced formula of FRIMATEC Company of Germany and LINK Laboratory of the United States, adopting the integration technology of individual characteristics of various materials of non-metallic composite materials, nano-copper modified phenolic resin adhesive The joint technology and the modification and adjustment technology of the parent material are researched and developed, and the international advanced dry one-step hot pressi
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Embodiment 1
[0013] Example 1, the raw material ratio of the new brake pad material for trucks is 15% to 20% of binder, 30% to 50% of skeleton material, 10% to 15% of friction increasing agent, 5% to 10% of friction reducing agent, 20%~30% filling material, the binder is nano-copper modified phenolic resin, the skeleton material is mineral fiber, glass fiber, aramid fiber, cellulose fiber, carbon fiber, etc., and the friction agent is high hardness material Chromium ore powder, feldspar powder, brown corundum, etc., friction reducer is graphite, coke, molybdenum disulfide, etc. with low hardness, filler is BaSO 4 , heavy calcium, etc. The process flow is to weigh and mix the above raw materials, then mix them, and then carry out hot pressing and heat treatment in sequence, then grind the outer arc and inner arc, finally drill holes and finely grind the outer arc, and the finished product after inspection storage.
Embodiment 2
[0014] Example 2. The friction material is composed of four major types of materials: binder, reinforcing fiber, friction modifier and filler. Glass fiber, carbon fiber, mica, silica, and rubber fragments are used as reinforcing materials for the friction layer without asbestos and metal. The product has strong wear resistance, stable friction coefficient and no noise.
[0015] Non-metallic brake pad friction material composition
[0016] Composition type
[0017] NAO type (that is, non-asbestos organic type) brake pads: Contains seventeen different mixture materials, mainly using aramid fibers, glass fibers or other fibers (carbon, ceramics) as reinforcement materials, and its performance mainly depends on the type of fiber and its additives.
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Abstract
The invention relates to a frictional material, in particular to a novel brake pad material of truck. The invention provides a novel brake pad material of a truck, wherein the novel brake pad material is used in a dry one-step hot press molding process applied to a nanocopper modified phenolic resin agglutination technology and a parent material modifying and adjusting technology. The raw material mixing ratio of the novel brake pad material is as below: 15%-20% of binder, 30%-50% of framework material, 10%-15% of friction enhancing agent, 5%-10% of anti-friction agent and 20%-30% of filling material. The binder is nanocopper modified phenolic resin, the framework material is mineral fibre and the like, the friction enhancing agent is great-hardness chromium ore power, and the like, the anti-friction agent is low-hardness graphite, and the like, the filling material is BaSO4, coarse whiting, and the like. The novel brake pad material has the advantage that a brake lining has a stable friction factor, stable recovery performance, good heat resistance, no crack performance, low speed sensitivity, good wearability and no braking noise.
Description
1. Technical field: [0001] The invention relates to a friction material, in particular to a novel brake pad material for a truck. 2. Background technology: [0002] The brake pad is composed of a steel back, an adhesive heat insulation layer and a friction layer, wherein the friction layer is composed of reinforcing materials, adhesives and fillers (friction performance modifiers). According to different braking methods, brake pads can be divided into soy type and disc type. According to different friction material formulas, brake pads can be divided into three types: asbestos type, semi-metal type and NAO type (that is, non-asbestos organic type). kind. Asbestos-type brake pads: Asbestos-based friction materials contain five to seven basic mixtures, which include asbestos fibers for reinforcement, various additive materials, and adhesives, such as linseed oil, resins, benzene, and resins as friction layers As the reinforcing material, asbestos accounts for 40-60%. Asbest...
Claims
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Application Information
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