Preparation method of copper-based powder metallurgy friction material
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A technology of mixing materials and manufacturing devices, which is applied in the field of material processing, and can solve problems affecting the mechanical properties of finished materials and uneven distribution of material quality
Pending Publication Date: 2022-07-22
哈斯格日乐
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[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing a copper-based powder metallurgy friction material, which solves the problem of material quality in the process of shaping and extrusion due to the gravity of the material itself during the manufacturing process. It may be unevenly distributed, which will seriously affect the mechanical properties of the finished material
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[0033] use Figure 1-Figure 8 A method for preparing a copper-based powder metallurgy friction material according to an embodiment of the present invention is described as follows.
[0034] like Figure 1-Figure 8 As shown in the figure, a mixed material manufacturing device according to the present invention includes a main box frame 1, the upper part of the inner cavity of the main box frame 1 is provided with a through slot, and the upper part of the inner wall of the main box frame 1 is slidably connected with a partition through the through slot. In the thermal protection plate 2, the left and right sides of the inner wall of the main box frame 1 are evenly provided with fixed bayonets, and the central part of the inner wall of the main box frame 1 is evenly provided with a centrifugal rotating device 3 through the fixed bayonet.
[0035] The centrifugal rotating device 3 includes a fixed motor 31 , the output shaft of the fixed motor 31 is fixedly connected with a hollo...
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Abstract
The invention belongs to the field of material processing, and particularly relates to a copper-based powder metallurgy friction material preparation method.The copper-based powder metallurgy friction material comprises a main box frame, a through slot is formed in the upper portion of an inner cavity of the main box frame, and a heat insulation protection plate is slidably connected to the upper portion of the inner wall of the main box frame through the through slot; fixing bayonets are evenly formed in the left side and the right side of the middle of the inner wall of the main box frame, and centrifugal rotating devices are evenly arranged in the middle of the inner wall of the main box frame through the fixing bayonets. According to the device, in the process of calcining the mixed materials, the shaping barrel is heated extremely uniformly, the problem that the mixed materials in the shaping barrel are heated unevenly, and consequently material finished products are poor is solved, centrifugal force generated when the materials rotate can balance the gravity of the materials, and therefore the materials are not prone to falling off in the calcining process. The problem that heavy materials are deposited and accumulated due to the gravity difference of the materials is solved, and then the problem that the mechanical property of a material finished product is seriously affected due to uneven material mass distribution is avoided.
Description
technical field [0001] The invention belongs to the field of material processing, in particular to a preparation method of a copper-based powder metallurgy friction material. Background technique [0002] Copper-based powder metallurgy friction material is based on copper, adding matrix strengthening components (Fe, Ni, Mo, Ti, Sn, Zn, P, etc.), friction components (SiO2, A12O3, SiC, asbestos, metal, ZrO2, etc. Non-metallic oxides, carbides, nitrides) and lubricating components (graphite, MoS2, CaF2, WS2, B4C, BN, Pb, Bi, etc.) sintered materials. Copper-based powder metallurgy brake pads show good comprehensive friction and wear properties in the braking process under the combined action of the above components after mixing, cold pressing and sintering, and are currently widely used high-speed train brake pad materials. [0003] In order to ensure the performance of the copper-based powder metallurgy friction material, the above materials need to be mixed evenly during the...
Claims
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Application Information
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