A method of preparing wear-resistant ceramic lining board by active brazing method

A technology of wear-resistant ceramics and active brazing, which is applied in the field of preparation of wear-resistant ceramic lining boards, which can solve the problems of easy aging of rubber materials, easy falling off of ceramics, and low bonding strength, so as to achieve not easy falling off, greater bonding strength, and improved strength Effect

Inactive Publication Date: 2011-11-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of the existing adhesive wear-resistant ceramic rubber liner with low bonding strength, ceramics are easy to fall off, rubber materials are easy to age, and the existing wear-resistant ceramic liner connected by bolts is easy to break and has a short anti-wear life. problem, the present invention provides a method for preparing wear-resistant ceramic liners by active brazing

Method used

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  • A method of preparing wear-resistant ceramic lining board by active brazing method
  • A method of preparing wear-resistant ceramic lining board by active brazing method
  • A method of preparing wear-resistant ceramic lining board by active brazing method

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specific Embodiment approach 1

[0018] Specific embodiment one: the method for preparing the wear-resistant ceramic liner with the active brazing method in this embodiment is realized by the following method: one, by mass fraction, 60%~80% Ag powder, 18%~35% Cu Powder and 1%~5% TiH 2 Put the powder into a stainless steel tank after mixing, then add acetone to make the acetone 1-5cm higher than the mixed powder, then fill the stainless steel tank with inert gas, seal the stainless steel tank, and then ball mill for 25-30 hours, then mix the powder after ball milling Powder and binder are mixed to obtain active metal paste solder, wherein the mass ratio of ball to material is 20:1, the mass ratio of mixed powder to binder is 20:1, and the mass fraction of binder is from 0.8% to 1.2 % glycerol, 95% to 97% distilled water and 2% to 4% hydroxyethyl cellulose; 2. Clean the surface of the ceramic block and the low-alloy high-strength structural steel plate respectively, then dry it naturally, and then put the ceram...

specific Embodiment approach 2

[0022] Specific embodiment two: the difference between this embodiment and specific embodiment one is that in step one, 70% Ag powder, 27% Cu powder and 3% TiH 2 The powder is mixed and placed in a stainless steel tank. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the inert gas in step 1 is argon or helium. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a method for preparing a wear-resistant ceramic liner by an active brazing method, which relates to a method for preparing a wear-resistant ceramic liner. The invention solves the problems of low bonding strength, easy falling off of ceramics and easy aging of rubber materials in the existing adhesive and wear-resistant ceramic rubber liners, and the problems that the existing wear-resistant ceramic liners connected by bolts are easy to break and have short anti-wear life. The method of the invention is as follows: 1. preparing active metal paste solder; 2. surface-treating ceramic blocks and steel plates; 3. preparing welding assembly parts; The wear-resistant ceramic liner of the present invention cancels the rubber layer, improves the bonding strength, wear resistance and high-temperature service life, and the shear strength of the brazing joint reaches 191MPa; the low cooling rate reduces the residual stress of the liner, and the liner is not easy Breakage, extended service life. The obtained liner can be used for coal conveying and ash discharge systems in thermal power plants, as well as anti-wear liners in material conveying and batching systems in metallurgical iron and steel industries, such as silos and hoppers.

Description

technical field [0001] The invention relates to a method for preparing a wear-resistant ceramic liner. Background technique [0002] In metallurgy, chemical industry, electric power and other raw material and fuel delivery systems, the most common problem encountered is the wear and tear of equipment, pipelines, silos and chutes. Commonly used wear-resistant linings include cast iron linings, manganese steel linings, and cast stone linings. Since the raw materials transported by metallurgical plants for ironmaking and steelmaking are mostly ore, coke, limestone and various alloy materials, they have serious wear and tear on equipment linings, silo walls, and chute linings. The 16Mn steel liner with a thickness of 16mm is used in the system, and the bottom of the chute will be worn through after only half a month of use. The 16mm thick 16Mn steel lining used in the coal handling system of large and medium-sized coal-fired power plants was worn out after only 3 to 6 months o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B37/02
Inventor 李卓然樊建新于康冯吉才刘羽刘兵吴广东
Owner HARBIN INST OF TECH
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