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A kind of electric welding electrode and preparation method thereof for Aubicite steel turnout welding

A technology of austenitic steel and electric welding rod, which is applied in the field of electric welding rod for welding repair of austenitic steel turnout and its preparation, can solve the problem of increasing railway line wear and operation cost, high cost of raw materials and turnout, and labor intensity of turnout. Large and other problems, to achieve the effect of beautiful and bright welding repair molding, good slag spreadability, and stable arc

Active Publication Date: 2021-08-03
CHONGQING DINGYU ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the total length of my country's high-speed rail lines has reached 22,000 kilometers, and the freight volume has also increased greatly, which increases the wear and tear of railway lines and operating costs, especially the parts of turnouts are often severely worn, and the labor intensity of replacing turnouts is high. The cost of raw materials and turnouts Therefore, research and development of special welding electrodes for turnout welding repair has become a top priority

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] The composition of the coating is: 50kg of marble, 26kg of fluorite, 3kg of titanium dioxide, 7kg of manganese metal, 4kg of chromium metal, 3kg of rutile, 4kg of ferromolybdenum, 0.2kg of sodium carboxymethyl cellulose, 0.6kg of soda ash, 1.5kg of ferrovanadium, nickel Powder 0.6kg, ferrosilicon 8kg and graphite 0.7kg.

[0103] After mixing the powders of each component in the above coating evenly, add 8.5kg of potassium sodium water glass with a concentration of 43° and mix evenly, take the 50kg mixture after mixing evenly, and send it to the plodder to wrap 100kg of welding core (the specification is Φ4 .0), after baking at 80°C for 4 hours at a low temperature and then at 380°C for 1.5 hours at a high temperature, an electric welding electrode for Aubicite steel turnout repairing was obtained.

[0104] The electrode produced according to the above process has smooth surface, high yield, stable eccentricity, stable arc during welding, good slag removal, excellent ele...

Embodiment 2

[0117] The composition of the coating is: marble 51kg, fluorite 25kg, titanium dioxide 3.5kg, metal manganese 6.8kg, metal chromium 3.9kg, rutile 2.8kg, molybdenum iron 4.2kg, carboxymethylcellulose sodium 0.2kg, soda ash 0.6kg, vanadium Iron 1.4kg, nickel powder 0.7kg, ferrosilicon 8.5kg and graphite 0.67kg.

[0118] After mixing the powders of each component in the above coating evenly, add 8.5kg of potassium sodium water glass with a concentration of 43° and mix evenly, take the 50kg mixture after mixing evenly, and send it to the plodder to wrap 100kg of welding core (the specification is Φ4 .0), after baking at 80°C for 4 hours at a low temperature and then at 380°C for 1.5 hours at a high temperature, an electric welding electrode for Aubicite steel turnout repairing was obtained.

[0119] The electrode produced according to the above process has smooth surface, high yield, stable eccentricity, stable arc during welding, good slag removal, excellent electrode operation p...

Embodiment 3

[0132] The composition of the coating is: marble 52kg, fluorite 24kg, titanium dioxide 4kg, metal manganese 6.6kg, metal chromium 3.8kg, rutile 2.6kg, molybdenum iron 4.3kg, carboxymethyl cellulose sodium 0.2kg, soda ash 0.6kg, vanadium iron 1.3kg, nickel powder 0.7kg, ferrosilicon 8.8kg and graphite 0.65kg.

[0133] After mixing the powders of each component in the above coating evenly, add 8.5kg of potassium sodium water glass with a concentration of 43° and mix evenly, take the 50kg mixture after mixing evenly, and send it to the plodder to wrap 100kg of welding core (the specification is Φ4 .0), after baking at 80°C for 4 hours at a low temperature and then at 380°C for 1.5 hours at a high temperature, an electric welding electrode for Aubicite steel turnout repairing was obtained.

[0134] The electrode produced according to the above process has smooth surface, high yield, stable eccentricity, stable arc during welding, good slag removal, excellent electrode operation pe...

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Abstract

The invention provides an electric welding electrode for Aubeite steel turnout welding, comprising: a welding core; a coating covering the outside of the welding core; the coating includes: marble; fluorite; titanium dioxide; metal manganese ; Metal chromium; Rutile; Ferromolybdenum; Sodium carboxymethyl cellulose; Soda ash; Ferrovanadium; Nickel powder; Ferrosilicon; The invention adopts the coating with special ingredients, especially through the reasonable preparation of the dosage of each component in the coating, so that this electrode is especially suitable for welding repairs on Aubeite steel turnouts, and the arc is stable and splashes during welding. Less slag, easy to remove slag, good weld formability, high tensile strength, yield strength, elongation, and impact energy in the area after welding repair. The invention also provides a preparation method of an electric welding electrode for welding and repairing Aubeite steel turnouts.

Description

technical field [0001] The invention relates to the technical field of electric welding electrodes, in particular to an electric welding electrode for Aubeite steel turnout repair welding and a preparation method thereof. Background technique [0002] Aubeite steel turnouts are mainly used in railway track separation and track junctions. They are a necessary part of railway tracks and an indispensable part of rail transportation lines. They play a huge role in the transportation of national economic construction. [0003] With the rapid development of my country's economy and the rapid development of the railway industry, it is estimated that the total length of my country's railway lines will reach 200,000 kilometers by 2025. The huge carrying capacity and complex and harsh operating environment are important characteristics of Chinese railways, which lead to serious damage such as stripping, falling blocks, collapse, and cracks of Aubeite steel turnouts. At present, the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3053B23K35/40
Inventor 何生郭志强
Owner CHONGQING DINGYU ELECTROMECHANICAL
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