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A kind of aluminum oxide ceramic layer growth method of metal-ceramic composite structure bushing

A metal-ceramic composite and alumina ceramic technology, which is applied in anodizing, presses, manufacturing tools, etc., can solve the problems of poor wear resistance, short service life, high manufacturing cost, etc., and achieve good wear resistance and good wear resistance performance and reduce maintenance costs

Inactive Publication Date: 2016-08-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of high manufacturing cost, poor wear resistance and short service life of the existing bushings for flat-die biomass molding machines, and further provides a metal-ceramic composite structure bushing for flat-die biomass molding machines and Alumina ceramic layer growth method

Method used

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  • A kind of aluminum oxide ceramic layer growth method of metal-ceramic composite structure bushing
  • A kind of aluminum oxide ceramic layer growth method of metal-ceramic composite structure bushing
  • A kind of aluminum oxide ceramic layer growth method of metal-ceramic composite structure bushing

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine Figure 1-Figure 3 Illustrate that a metal-ceramic composite structure bushing for a flat-die biomass molding machine in this embodiment is mainly composed of a base body 1 and an alumina ceramic layer 2 on the surface of the base body; the base body 1 is mainly made of an integrated hollow tapered sleeve 1-1 and ring sleeve 1-2, the outer surface of the large diameter end of the hollow tapered sleeve 1-1 is fixedly connected with a ring sleeve 1-2, the upper surface of the hollow tapered sleeve 1-1 and the ring sleeve 1-2 The upper surface of the substrate 1 is flush with each other, and the surface of the substrate 1 is oxidized by micro-arc to form an alumina ceramic layer 2. The substrate 1 is made of aluminum or aluminum alloy, and the thickness of the alumina ceramic layer 2 is 40 microns to 130 microns.

specific Embodiment approach 2

[0018] Specific implementation mode two: combination Figure 1-Figure 3 Note that the aluminum alloy described in this embodiment is LC9 aluminum alloy or LY12 aluminum alloy. With such setting, the hardness is high, the composition is reasonable, the comprehensive performance is good, and it can be strengthened by heat treatment. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0019] Specific implementation mode three: combination figure 1 Note that the alumina ceramic layer 2 in this embodiment is mainly composed of a loose layer 2-1, a dense layer 2-2 and a transition layer 2-3, and the dense layer 2-2 is located between the loose layer 2-1 and the transition layer 2-3 In between, the transition layer 2-3 is set against the base 1. In this way, the loose layer is exposed to the dense layer after being worn out, and the dense layer has high hardness and wear resistance and can resist the wear of the material. Therefore, it can not only overcome the problems of severe wear and low service life of the integral metal bushing, but also solve the problem that the integral ceramic material cannot guarantee the machining accuracy and is easily broken. Others are the same as in the first or second embodiment.

[0020] Specific implementation mode four: combination Figure 2-Figure 3 Note that the alumina ceramic layer 2 in this embodiment is mainly comp...

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Abstract

The invention discloses a bush with metal ceramic composite structure for a flat-die biomass molding machine and a growing method of an aluminum oxide ceramic layer, and relate to a bush for a flat-die biomass molding machine and a growing method of an aluminum oxide ceramic layer, for solving the problems that the existing bush for the flat-die biomass molding machine is high in manufacturing cost, poor in wear-resisting performance and short in service life. The bush is mainly composed of a base body and the aluminum oxide ceramic layer on the surface of the base body, wherein the base body is mainly composed of a hollow taper sleeve and a loop integrally formed, the loop is fixedly connected with the outer side of the large-diameter end of the hollow taper sleeve, the upper surface of the hollow taper sleeve flushes with the upper surface of the loop, the surface of the base body adopts the aluminum oxide ceramic layer generated by micro-arc oxidation, and the base body is made of aluminum or aluminum alloy material; the bush is applied to the flat-die biomass molding machine.

Description

technical field [0001] The invention relates to a bushing for a flat-die biomass molding machine and a ceramic layer growth method, in particular to a metal-ceramic composite structure bushing for a flat-die biomass molding machine and a ceramic layer growth method. Background technique [0002] Biomass molding machine is a kind of mechanical equipment that converts waste straw into combustible biomass energy. It mainly uses pressure to press and shape straw to make it a fuel with high calorific value. It can not only solve the environmental pollution caused by farmers burning straw , and can become a renewable energy that can replace fossil fuels such as coal. However, due to the huge pressure of the straw in the molding process, and repeated rolling, there is intense friction with the molding die, so that the forming holes of the molding machine die plate are worn out rapidly, and then the entire die plate is scrapped. Therefore, the integral metal die hole bushing is gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B15/00C25D11/04
Inventor 曲建俊郑杨袭建军
Owner HARBIN INST OF TECH
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