Abstract:
In this paper, through the comparative analysis of different brazing processes of wear-resistant plates of concrete pumps, combined with the characteristics of mesh belt furnaces and kilns, a new method suitable for continuous atmosphere protection brazing of wearing parts of concrete pumps with large gaps and large areas and heavy workpieces is creatively developed. and independently developed and designed a complete set of continuous atmosphere protection equipment, using BCu brazing filler metal to braze the wear-resistant plate of the wearing parts of the concrete pump. Under the protection conditions, BCu brazing filler metal has good wettability and spreadability for YG20 wear-resistant lining plate and Q235B body of concrete wear-resistant plate. and welding defects such as blowholes, meet the requirements of industrial products, and can be popularized and applied to the production of wear-resistant and wearing parts of construction machinery such as tools on shield machine cutterheads.