Copper-clad steel grounding grid heat release melting soldering powder suitable for cyclic wet-dry environments

Abstract

The invention belongs to the technical field of heat release melting soldering powder, and particularly relates to copper-clad steel grounding grid heat release melting soldering powder suitable for cyclic wet-dry environments. The heat release melting soldering powder comprises the following components of, by weight, 30-50 parts of copper oxide, 2-10 parts of cuprous oxide, 8-15 parts of aluminumpowder, 18-28 parts of copper powder, 3-12 parts of copper-phosphorus alloy, 2-6 parts of nickel-chrome-cobalt-molybdenum alloy, 2-5 parts of fluorite powder, 1-4 parts of rare earth, 1-2 parts of borax and balance alloy additive powder. Through the soldering powder prepared through the invention, the problems that copper-clad steel welded through existing heat release melting soldering powder isprone to having the defects of pores, slag inclusion, hot cracks and the like and is poor in ocean atmosphere corrosion resistance are solved.

Description

technical field [0001] The invention belongs to the technical field of exothermic melting brazing powder, and in particular relates to a copper-clad steel grounding net exothermic melting brazing powder suitable for use in alternating dry and wet environments. Background technique [0002] The concept of grounding is broad. In the power system, it usually refers to connecting a certain metal of the power system or electrical equipment to the electrode through a metal grounding wire. The purpose is to connect any part of the power system or electrical equipment with the earth (soil). The grounding device of the power system or electrical equipment is mainly composed of a grounding body and a grounding wire. The grounding body is a metal that is in direct contact with the soil, and the grounding wire is It is the wire connecting the electrical equipment and the grounding body. [0003] With the rapid development of my country's economy, the demand for power supply has risen s...

AI Technical Summary

Problems solved by technology

[0015] The object of the present invention is to provide a kind of exothermic melting brazing solder powder suitable for copper-clad steel grounding grid under the environment of alternating dry and wet in view of the problems existing in the prior art, which solves the problem of exothermic melting brazing solder powder welding copper-clad steel It is prone to defects such as pores, slag inclusions, hot cracks and poor resistance to marine atmospheric corrosion