Non-asbestos micro-metal mineral fiber disk type brake block for automobile
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A disc brake pad and mineral fiber technology, applied in friction linings, other chemical processes, chemical instruments and methods, etc., can solve problems such as easy rust, high noise of products, and harm to human health
Inactive Publication Date: 2015-04-22
福建冠良汽车配件工业有限公司
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[0004] The purpose of the present invention is to provide a production formula and production process of asbestos-free micrometallic mineral fiber automobile disc brake pads, which not only solves the problems of environmental pollution and human health hazards caused by the use of asbestos, but also avoids the use of polymetallic, High-strength fibers lead to high noise and easy rusting of products
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[0082] The invention mainly uses FKF composite mineral fiber as the main reinforcing material. Table 2 is an example of the friction material formulation weight % of the present invention. In Comparative Example 1, asbestos is used as the main reinforcing material, in Comparative Example 2, steel fiber is used as the main reinforcing material, and other components are completely the same. These three groups of tests are comparative tests carried out under the condition that the production process, production equipment, process parameters and product size are exactly the same.
[0083] Table 2 (weight %)
[0084]
[0085] Process method: first weigh various raw materials according to the ratio of raw materials specified in Table 2, and proceed in steps.
[0086] 1) Batching and mixing: In order to fully and evenly mix the raw materials, batch premixing is usually carried out.
[0087] Premix one: loose fiber. According to the ratio of raw materials in Table 2, weigh zinc...
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Abstract
The invention discloses a non-asbestos micro-metal mineral fiber disk type brake block for an automobile. The non-asbestos micro-metal mineral fiber disk type brake block comprises, by weight, 10-20% of cashew nut shell oil modified phenolic resin, 3-8% of powder butadiene-acrylonitrile rubber, 3-8% of fibrous sepiolite, 5-10% of needle-like wollastonite, 15-20% of FKF composite mineral fiber, 5-10% of alumina silicate fiber, 2-6% of paper pulp fiber, 5-10% of cashew nut shell oil friction powder, 5-13% of blanc fixe, 3-15% of crystalline flake graphite, 1-10% of zircon powder, 0.1-0.7% of zinc stearate, 4-7% of chromite ore fines, 1-3% of molybdenum disulfide, 3-6% of expanded vermiculite, 1-5% of calcined coke powder, 1-5% of iron oxide red and 1-6% of rustless iron powder. The production process comprises the steps that the components are pre-mixed and mixed through an automatic mixer, the amount of finally-formed materials is weighted according to the required specification of the disk type brake block, a cold blanket is formed after cooling forming, hot press forming and heat processing are carried out, and the finished product is manufactured through fine machining. The non-asbestos micro-metal mineral fiber automobile disk type brake block has the advantages of being stable in friction abrasion performance, good in mechanical property, excellent in heat recession resisting performance and long in service life.
Description
technical field [0001] The invention belongs to the technical field of automobile brake systems, and in particular relates to a production formula of disc brake pads for automobiles. Background technique [0002] Friction material refers to the functional material that realizes transmission and braking through the friction force (moment) generated when it moves relative to the dual material. It is one of the indispensable accessories for industrial transmission and is widely used in airplanes, trains, automobiles, In the field of bicycles, it is a kind of composite material, which is mainly composed of three parts: binder, reinforcing material and filler. [0003] The reinforcing material in the initial friction material was mainly asbestos. But since the 1960s, people have gradually realized that asbestos has certain dangers to human health. During its mining or production, the fine asbestos fibers are easy to fly in the air and be inhaled into the lungs of people. Peopl...
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