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A kind of aluminum steel hot-melt welding flux

A hot-melt welding and aluminum-steel technology, applied in the field of aluminum-steel hot-melt flux, can solve the problems that weldment joints cannot achieve complete fusion welding, the physical properties of welded joints are not ideal, and the technical requirements cannot be met, and the welding quality is stable. Reliable, reduced filler metal, good weld quality

Active Publication Date: 2019-09-20
XINJIANG JOINWORLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of flux has problems such as low ignition efficiency, complete fusion welding of weldment joints, easy generation of gaps during welding, unsatisfactory physical properties of welded joints, and failure to meet technical requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The aluminum-steel hot-melt flux used for welding the anode guide rod of the electrolytic cell and the steel claw is composed of aluminum powder, iron oxide powder, iron particles, alloy additives, and slagging agent. The diameter of the iron particles is 2-3mm and the length is 5mm. ~6mm columnar, its dosage can be controlled at 10-15wt%. Preferably, the mass percentage of each component is as follows: aluminum powder 20%, iron oxide powder 64%, iron particles 12%, alloy powder 2.39%, and the balance is slagging agent. Among them, the alloy additives can choose elements such as Cr, Si, Mn; the slagging agent can choose CaF 2 , NaF.

[0019] The first step is to dry and remove the moisture in the iron oxide powder to ensure the dryness of the iron oxide powder.

[0020] In the second step, sieve the iron oxide powder with 20-mesh and 100-mesh sieves, and collect the iron oxide powder with a particle size of 20-100 mesh. Particles below 100 mesh are regarded as waste ...

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Abstract

The invention discloses aluminum steel hot melting welding flux. The aluminum steel hot melting welding flux comprises aluminum powder, ferric oxide, alloy additives and a slag former. The aluminum steel hot melting welding flux is characterized in that the aluminum steel hot melting welding flux contains abrasive grits with the diameter being 2-3 mm and the length being 5-6 mm. Compared with existing hot melting welding flux, raw materials of the aluminum steel hot melting welding flux are easy to obtain, the cost is low, the formula is simple, and operation is convenient; the aluminum steel hot melting welding flux is adopted for welding, so that the welding quality is good, the ignition efficiency is high, the connection surface is smooth, the contact resistance is small, the extension strength is large, and the filling metal amount can be decreased. A metallurgy reaction is sufficient, and the probability of existence of defects such as pores and cracks is lowered. In addition, no external power source is needed during welding of the aluminum steel hot melting welding flux, the welding quality is stable and reliable, and the aluminum steel hot melting welding flux has the remarkable economic benefits when used for anode rod and steel claw welding.

Description

technical field [0001] The invention relates to an aluminum-steel hot-melt flux which is especially suitable for welding anode guide rods and steel claws in the electrolytic aluminum industry. Background technique [0002] The welding of anode guide rods and steel claws has always been a major problem and an important hot issue in the welding field of the aluminum industry. At present, the methods applied to the welding of anode guide rods and steel claws mainly include: friction welding, brazing, explosive welding, hot-melt welding, etc. However, these methods are not yet mature and perfect, especially in improving welding production efficiency and improving joint performance. With the promotion and use of new technologies, new processes, and large cell types in the electrolytic aluminum industry, the welding technology of electrolytic cell anode guide rods and steel claws also needs to be rapidly improved, and the requirements for welding quality are also getting higher a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/34B23K23/00
Inventor 龚泽来昌振利关鹏程陈润冬陈广禄
Owner XINJIANG JOINWORLD CO LTD
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