Continuous pressure sintering device and process for high-speed heavy-load brake pad

A technology of pressure sintering and brake pads, applied in lighting and heating equipment, furnace types, furnaces, etc., can solve the problems of basic structure and basic function stay, low energy utilization rate, low production efficiency, etc., to achieve improved labor conditions, The effect of high utilization rate of heat energy and high production efficiency

Inactive Publication Date: 2014-03-26
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this kind of equipment can only be an intermittent production method of loading one furnace, burning one furnace, and cooling one furnace, so the production efficiency is low, the scrap rate is high, the ambient temperature is high, and the energy utilization rate is low.
In order to solve this problem, powder metallurgy workers have made a lot of equipment improvements. Although a lot of achievements have been made, the basic structure and basic functions of the equipment still remain at the level of the bell-type pressure sintering furnace.

Method used

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  • Continuous pressure sintering device and process for high-speed heavy-load brake pad

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Effect test

preparation example Construction

[0043] A process for preparing high-speed heavy-duty brake pads using the device, specifically comprising the following steps:

[0044] Step 1: Start the upper computer to set the process parameters, open the horizontal boat feeding furnace door, place the loaded boat on the pallet plate of the propulsion cylinder, close the horizontal boat feeding furnace door, and the upper computer controls the propulsion cylinder to push the boat into the In the preheating section B, at the same time, a reducing atmosphere is introduced into the superalloy furnace tube through the gas supply device; wherein, the speed of pushing the boat of the propulsion cylinder is 1 boat / 60 minutes; that is, one boat is pushed every 60 minutes for continuous operation;

[0045] Step 2: The boat enters the preheating section B and heats up to 1050°C through the heating furnace. After holding the heat for 60 minutes, open the door of the horizontal boat feeding furnace, place the second boat on the pallet ...

Embodiment 1

[0050] Prepare a continuous pressure sintering device and supporting production process with an annual output of 170,000 sets (G-300 type) of railway high-speed train brake pads.

[0051] (I) User's technical parameter requirements (according to user requirements):

[0052] (Ⅰ-a) Brake pad size and weight:

[0053] The friction layer is 10mm thick, 40mm wide and 60mm long. Every 5 friction layers are sintered with the same steel backing substrate. The total area under pressure of the friction layer is 120cm 2 . The weight of each preformed blank is W 0 =184.8g. Steel back substrate size (provided by the user) is 5mm thick x 80mm wide x 294mm long, and weighs 917 grams per piece.

[0054] (I-b) Yield requirements.

[0055] 300 days (working days) per year, with an annual output of 170,000 sets / 300 days (Note: Each set of brake pads is composed of 5 friction plates welded together on a steel-backed substrate to form a set).

[0056] 1 The design of the main components of...

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Abstract

The invention belongs to a technology for preparing metal powder and a composite material of a metal material, and provides a continuous pressure sintering device and process for a high-speed heavy-load brake pad. The device comprises an upper computer, a half-open furnace body, a scaffold car and a horizontal type long-barrel-tunnel-shaped high-temperature alloy furnace tube, wherein the upper computer is used for controlling, the half-open furnace body is used for achieving the heat insulation and preservation functions, and the section of the high-temperature alloy furnace tube is rectangular. By the adoption of the device, multiple kinds of metal powder, alloy powder and graphite powder or oxide powder or carbide powder can be prepressed into parison and then pressure sintering is conducted on the parison, and meanwhile the parison and steel backing substrates are welded, and then various high-speed heavy-load brake materials or components can be made. The technology and the device are suitable for automatic, continuous and massive production of the brake materials or components of high-speed walking machines such as airplanes, railway high-speed trains and superior quality cars. Compared with a bell jar type furnace, the device is high in automation level, low in energy consumption, high in product quality, uniform and stable in performance and high in production efficiency, and the production environment is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of metal powder and composite materials in metal materials. In particular, it provides a technology and device that can carry out pressure sintering in the process of continuous boat pushing, and provides a method that can mix various metal and alloy powders with graphite powder, oxide or carbide granular powder, Powder, pre-pressed blank, (combined with rigid back substrate) pressure sintering, can be made into various high-speed heavy-duty brake materials or components. This brake material or component is suitable for general high-speed travel and aircraft brake materials, such as: aircraft, railway high-speed trains, high-end cars, etc., and is also suitable for the industrialization of brake components for ships, large wind and hydro generator shafts Large-scale production. technical background [0002] The literature search in the past 20 years shows that with the continuous improvement...

Claims

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Application Information

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IPC IPC(8): F27B21/00F27B21/08
Inventor 吴成义郭志猛于潇赵翔彭坤郝俊杰孙鹏刘桂香张晓冬
Owner UNIV OF SCI & TECH BEIJING
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