Welding electrode coating

Abstract

The invention relates to a welding electrode coating. The coating is prepared from the following raw materials by weight: 1kg of marble, 2kg of titanium white, 14.78kg of reduced titanium, 1kg of cellulose, 4 kg of rutile, 3kg of coarse mica, 2kg of fine mica, 3kg of white mud, 2.4 kg of feldspar, and 15.12kg of medium manganese; the coating is prepared by uniformly mixing the raw materials of the coating; and when used for a welding electrode, the coating is pressed and coated on a core wire by taking 38 to 40 DEG C sodium silicate as a binder. The welding electrode coating has the advantages that: 1, slag can be removed easily, and can be completely removed at the positions of a T-type joint fillet weld, butt fillet weld, fillet weld, and the like, and the slag at the downward welding and flat fillet weld positions can be warped automatically, the whole strip falls off, and the slag is not stuck to the edge and the weld surface; 2, there is hardly splashing; 3, arc restarting performance is high, and the time interval limitation is avoided; 4, all position welding can be achieved; 5, the welding seam is fine and bright, and the color of the weld seam is silvery white or golden yellow; and 6, smoke of welding is less and safety and nontoxicity are guaranteed.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a welding electrode covering. Background technique [0002] In today's era of rapid development of science and technology, welding has successfully completed its own transformation, and China has become the world's largest producer of welding materials. Few people notice when this process starts and ends, but it does indeed Occurred at some time in the past. Today we are faced with the fact that welding has developed from a traditional thermal processing technology to an engineering technology discipline integrating materials, metallurgy, structure, mechanics, electronics and other disciplines; modern architecture, bridges, shipbuilding and other industries For every ton of steel used, about 300 kilograms of welding materials will be consumed, and in general engineering construction, 30% of the steel needs to be welded. With the continuous increase in the amount of weld...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a coating for welding electrodes, which is easy to arc when welding the existing common coating for welding electrodes, but when drying at high temperature, when the temperature exceeds 160 degrees, the cellulose is carbonized, resulting in The gas volume of leather is small, the surface finish is poor, the melting depth is shallow during welding, and the production cost is high.