Brazing and casting process of metal ceramic composite lining board

Abstract

The invention relates to a brazing and casting process of a metal ceramic composite lining board. The brazing filler metal adopted by the process comprises the following ingredients by weight percent: 10-70% of Cu powder, 20-70% of Ti powder and 5-20% of surface active elements. The process comprises the following steps of: adding 10-20% of ceramic particles serving as a wetting enhanced phase into the brazing filler metal to prepare a composite brazing filler metal, cleaning a metal layer and a ceramic layer by using an organic solvent cleaning agent, fixedly assembling the metal layer and the ceramic layer in a sequence of the ceramic layer, the composite brazing filler metal, the metal layer, the composite brazing filler metal, the ceramic layer, the composite brazing filler metal and the metal layer, placing the fixedly-assembled metal layer and ceramic layer in a vacuum brazing furnace for brazing, after brazing, placing a metal ceramic layer and a metal matrix into a casting die, pouring liquid steel and casting. The prepared metal ceramic composite lining board has the advantages of good toughness, high wear-resisting property and high corrosion-resisting property, and meanwhile, the metal ceramic layer occupies a small part of the lining board and is low in cost, thus improving the production efficiency, saving the production halt and change time and comprehensively increasing the economic benefit for the industries of cement, metallurgy, mine, electricity and the like.

Description

technical field [0001] The invention relates to the field of manufacturing metal-ceramic composite lining boards, in particular to a brazing and casting process for metal-ceramic composite lining boards. Background technique [0002] Friction and wear is a ubiquitous natural phenomenon. Friction consumes more than 1 / 3 of the primary energy, and wear is one of the three main ways for materials and equipment to fail, causing losses equivalent to more than 2% of GDP. my country is the second largest energy consuming country, but the energy consumption per unit of GDP is 2.6 times that of the United States, 4.0 times that of Germany, and 4.6 times that of Japan. my country has a lot of room for development in saving energy consumption and resources. At present, there are more than 5,000 large-scale cement plants in China, each of which has at least one or two mills. The current mill liner is generally damaged within a year or so and needs to be stopped for replacement. Genera...

AI Technical Summary

Problems solved by technology

At home and abroad, the whole metal material is usually used to prepare wear-resistant parts. The application practice has proved that its toughness can meet the application requirements, but its wear resistance and corrosion resistance often cannot meet the needs.

Ceramics have the advantages of corrosion resistance, wear resistance, high hardness, and oxidation resistance, and are gradually being extensively and in-depth researched as the most important anti-wear materials. Important guarantee, but ceramics have poor processability, low ductility and impact toughness, and are brittle, which severely restricts the application of ceramics in the field of anti-wear