Ignition device for exothermic welding agent

Abstract

The invention relates to an ignition device for an exothermic welding agent. The device comprises a cup body, a cup lid, one or more electric heating rods and a lead. The cup body is used for containing an ignition agent, and one or more ignition holes are formed in the bottom of the cup body. The cup lid is used for covering the opening of the cup body and provided with one or more openings. The electric heating rods are inserted into the ignition agent through the one or more openings in the cup lid. One end of the lead is respectively electrically connected with the heating rods, and the other end of the lead is connected with a power supply. The ignition device has the advantages that the electric heating rods are used for igniting and are connected with the power supply through the lead, an operator can perform ignition only by electrifying the electric heating rods through long-distance operation, and short-distance operation is not needed.

Description

technical field [0001] The invention relates to the technical field of exothermic welding, in particular to a device for igniting exothermic welding agent. Background technique [0002] Exothermic solder is a commonly used welding material in recent years. Its principle is to use metal oxides. Under high temperature conditions, a reduction reaction occurs, and the metal is reduced to become liquid metal. Under the package of the welding mold, The two metals that need to be welded are fused together to form a molecular bond with excellent strength and electrical conductivity. [0003] At present, there are mainly two methods for igniting exothermic flux during welding. One is to place the igniter at the mouth of the welding mold and ignite the igniter with a torch. In order to facilitate ignition, in addition to metal oxides, combustibles such as Mg or red phosphorus or black powder are often added to the igniter. This igniting method has potential safety hazards. Since th...

AI Technical Summary

Problems solved by technology

However, there are many types of igniters required by this method, which need to be stored separately, and when used, they are mixed together to cause chemical reactions, which is troublesome

And there are also potential safety hazards. The operator needs to close the top cover of the hot-melt mold at a high speed when the igniter starts to smoke, and then stay away from here for more than 4 meters.

The whole operation process is dangerous, and if the time is not well grasped, splashing and hurting people will also occur

[0005] Ignition in the prior art requires operators to operate at close range, which poses hidden dangers in production safety

In addition, there are flammable and explosive dangerous components in many igniters, which have high requirements for transportation and storage conditions

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