A powder metallurgy brake pad sintering method

A sintering method and powder metallurgy technology, applied in the direction of friction linings, mechanical equipment, gear transmission mechanisms, etc., can solve the problems of affecting braking performance, large density and size errors, etc., to improve braking performance, reduce scrap rate, The effect of eliminating the grinding process

Active Publication Date: 2022-05-13
SHANDONG GOLD PHOENIX
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for sintering powder metallurgy brake pads, which is used to solve the problem that the existing powder metallurgy brake pads have large density and size errors after sintering, thereby affecting the braking performance.

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  • A powder metallurgy brake pad sintering method
  • A powder metallurgy brake pad sintering method
  • A powder metallurgy brake pad sintering method

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Embodiment Construction

[0055] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0056] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic concept of the present invention, although only the components related to the present invention are shown in the diagrams rather than the number, shape and Dimensional drawing, the shape, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the layout of the components may also ...

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Abstract

The invention provides a powder metallurgy brake pad sintering method, comprising: providing at least one high-temperature-resistant tray, at least one mold cavity is provided on the high-temperature-resistant tray, a bottom surface and an avoidance structure are arranged in the mold cavity, and the avoidance structure accommodates the avoidance backboard The raised structure and cylindrical core; install the high temperature resistant tray in the sintering furnace with reducing gas atmosphere; place the cold-pressed brake pad in the mold cavity; provide at least one pressure plate; place the pressure plate on the friction block. In the cavity; apply pressure to the pressure plate so that the pressure plate presses the friction block tightly and keep the pressure within the set temperature range; slowly cool the high temperature resistant tray and the brake pad together, and then take the brake pad out of the high temperature resistant tray. The sintering method of the powder metallurgy brake disc of the invention effectively improves the product performance and quality, and ensures the consistency and reliability of the product.

Description

technical field [0001] The invention relates to the field of processing methods for brake parts, in particular to a powder metallurgy brake pad sintering method. Background technique [0002] With the increase of the speed of the train, higher requirements are put forward for the braking of the train. Brake pads for high-speed motor vehicles today have adopted a combination of multiple powder metallurgy friction blocks, so that the brake pads can reduce overheating fatigue under high-speed and high-pressure braking conditions, improve the heat dissipation capacity of the brake pads, and overcome the friction performance of the brake pads. . [0003] In the traditional processing technology of the existing brake pads, the cold-pressed brake pads are directly placed in the sintering furnace for sintering. During the sintering process, the friction blocks on the brake pads are completely exposed in the sintering furnace. The brake pads sintered according to this method, The d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/10B22F5/00C22C47/14C22C49/02C22C49/14F16D69/02C22C101/10
CPCB22F3/1007C22C47/14C22C49/14C22C49/02B22F5/00F16D69/02F16D69/028F16D2200/0004F16D2250/0007
Inventor 张洪军
Owner SHANDONG GOLD PHOENIX
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