Non-plating nickel brazing process for electric heating substrate

Abstract

The invention provides a non-plating nickel brazing process for an electric heating substrate. Pb is put into Hcl with the concentration being 5% to form a Pbcl solution; one end of the electric heating substrate is smeared with the Pbcl solution; a nickel wire is placed on the portion, with the Pbcl solution, of the electric heating substrate, and the electric heating substrate with the nickel wire is welded through a brazing furnace. In this way, the nickel wire brazing process for the electric heating substrate is further simplified, cost is reduced for enterprises, and production benefits are increased.

Description

technical field [0001] The invention relates to a non-nickel-plated brazing process for an electric heating substrate. Background technique [0002] In the prior art, when brazing nickel wire on the electrothermal substrate, a layer of metal layer (where the metal is tungsten) needs to be plated on the electrothermal substrate, and then the nickel wire can be placed on the metal layer, and then brazed through a brazing furnace. Welding; if a layer of metal layer is not coated on the electrothermal substrate, the nickel wire cannot be brazed on the electrothermal substrate; now there is another method of brazing nickel wire that does not need to be coated with a metal layer on the electrothermal substrate, that is, the temperature If the temperature is increased to above 1100°, welding can be achieved through high temperature, but corresponding equipment is required to increase the temperature to such a high temperature. The price of such equipment is very high, which greatly...

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Problems solved by technology

[0002] In the prior art, when brazing nickel wire on the electrothermal substrate, a layer of metal layer (where the metal is tungsten) needs to be plated on the electrothermal substrate, and then the nickel wire can be placed on the metal layer, and then brazed through a brazing furnace. Welding; if a layer of metal layer is not coated on the electrothermal substrate, the nickel wire cannot be brazed on the electrothermal substrate; now there is another method of brazing nickel wire that does not need to be coated with a metal layer on the electrothermal substrate, that is, the temperature If it is raised to above 1100°, high temperature is used to achieve welding, but corresponding equipment is needed to raise the temperature to such a high temperature. Such equipment is very expensive, which greatly increases the cost of the enterprise and is not conducive to the competition of enterprises.

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