High low temperature toughness carbon steel covered electrode

A high-toughness, carbon steel technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems affecting the low temperature toughness of the electrode, increase the moisture absorption performance of the electrode, low temperature brittle failure, etc., and achieve outstanding economic benefits. and social benefits, beautiful molding, and the effect of improving low temperature toughness

Inactive Publication Date: 2011-01-19
台州海翔焊接材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the price of lithium water glass is 8-10 times that of ordinary water glass; soda ash will increase the moisture absorption performance of the electrode, making it difficult to store the electrode; water glass will affect the low temperature toughness of the electrode and cause low temperature brittle damage

Method used

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  • High low temperature toughness carbon steel covered electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0016] The ferromanganese powder described in Example 2 is medium-carbon ferromanganese powder with a carbon content of 1.2%; the described carbonate powder is magnesium carbonate powder.

Embodiment 3

[0017] The ferromanganese powder described in embodiment 3 is medium carbon ferromanganese powder, and carbon content is 1.0%; Described carbonate powder is calcium carbonate powder, magnesium carbonate powder, barium carbonate powder, and the weight ratio of the three is 3 :2:5.

Embodiment 1

[0019] According to the composition ratio of the carbon steel electrode coating in Example 1 in Table 1, the drug is added to the mixer as required, and then mixed with water glass adhesive to mix evenly, and then added to the electrode press coating machine for coating. After the carbon steel welding core is put into the dryer, it is dried and shaped, and finally inspected and packaged to make carbon steel welding rods of various specifications.

[0020] Example 2

[0021] According to the composition ratio of the carbon steel electrode coating in Example 2 in Table 1, the other processes are the same as in Example 1, and will not be repeated.

[0022] Example 3

[0023] According to the composition ratio of the carbon steel electrode coating composition in Example 3 in Table 1, other processes are the same as in Example 1, and will not be repeated.

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Abstract

The invention provides a high low temperature toughness carbon steel covered electrode, belonging to the technical field of metal welding tool. The invention solves the problem that the low temperature toughness of the existing electrode is low. The high low temperature toughness carbon steel covered electrode of the invention comprises a core wire and a coating which is extruded and pressed on the core wire; wherein the coating is composed of the following components by parts by weight: 39-45 parts of reduced ilmenite powder, 3-6 parts of mica powder, 1-6 parts of rutile powder, 10-23 parts of fluorite powder, 4-27 parts of wollastonite powder, 6-16 parts of ferro manganese powder, 0-5 parts of titanium powder, 4-6 parts of carbonate powder, 2-6 parts of marble powder and 3-5 parts of boron powder, and the powders containing the components are mixed to be uniform, so as to obtain the coating of the electrode. The invention has less welding spatter, beautiful moulding, easy slag detaching, high deposition rate and good welding performance; especially low temperature toughness is improved, and low temperature brittleness is prevented from being destroyed; and production cost is low, application range is wide, and use is convenient.

Description

technical field [0001] The invention relates to a welding rod, in particular to a low-temperature high-toughness carbon steel welding rod, which belongs to the field of metal welding tools. Background technique [0002] With the rapid development of the metal manufacturing and processing industry, the technical requirements for the welding electrodes used in the welding process are also getting higher and higher. In the prior art, the raw materials of existing carbon steel welding electrodes such as carbon steel spot welding electrodes with titanium-calcium coating are generally made of rutile, titanium dioxide, reduced ilmenite, medium carbon ferromanganese, white clay, mica, marble, It is composed of clay, wood powder, cellulose and other raw materials; its electrode has defects in material selection and ingredients. In actual use, its electrode spatters larger particles during welding, the arc is unstable, and the surface of the weld seam is prone to pitting after welding...

Claims

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Application Information

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IPC IPC(8): B23K35/365
Inventor 金鹏
Owner 台州海翔焊接材料有限公司
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