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Steel welding rod and preparation method thereof

A technology of welding rods and welding cores, applied in the field of steel welding electrodes and their preparation, can solve problems such as gaps, achieve high yield, improve high temperature hardness and wear resistance, and excellent welding performance

Inactive Publication Date: 2017-11-07
HEFEI ANLI ELECTRIC POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surfacing welding electrodes with excellent high-temperature oxidation resistance, good wear resistance, high cleanliness, and good fatigue resistance are urgently needed welding materials for mold manufacturing and repair and remanufacturing. large gap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of steel welding electrode, described electrode is made up of welding core and coating two parts; Described coating comprises following raw material by weight:

[0040] Marble 250 parts, Fluorite 200 parts,

[0041] 50 parts of ferromolybdenum, 60 parts of rare earth silicon,

[0042] 10 parts of titanium dioxide, 20 parts of zircon,

[0043] 5 parts of rare earth oxide, 30 parts of ferromanganese,

[0044] 20 parts of nickel powder, 8 parts of soda ash,

[0045] 10 parts of nano chromium nitride powder.

[0046] The rare earth oxide is selected from one or both of light rare earth oxides and heavy rare earth oxides.

[0047] Na in the soda ash 2 CO 3 ≥99%, NaCl≤0.6%; Ni in nickel powder≥99.9%, particle size ≤60 mesh.

[0048] The components contained in the welding core and the mass percentage of each component in the welding core are as follows:

[0049] C: 0.08%, Si: 0.02%, Mn: 0.6%, Cr: 0.2%, Ni: 0.4%, Cu: 0.15%, S: 0.01%, P: 0.005%, Ti: 0.2%, Mo: 0.0...

Embodiment 2

[0060] A kind of steel welding electrode, described electrode is made up of welding core and coating two parts; Described coating comprises following raw material by weight:

[0061] Marble 300 parts, Fluorite 150 parts,

[0062] 80 parts of ferromolybdenum, 30 parts of rare earth silicon,

[0063] 25 parts of titanium dioxide, 10 parts of zircon,

[0064] 11 parts of rare earth oxide, 20 parts of ferromanganese,

[0065] 50 parts of nickel powder, 3 parts of soda ash,

[0066] 15 parts of nano chromium nitride powder.

[0067] The rare earth oxide is selected from one or both of light rare earth oxides and heavy rare earth oxides.

[0068] Na in the soda ash 2 CO 3≥99%, NaCl≤0.6%; Ni in nickel powder≥99.9%, particle size ≤60 mesh.

[0069] The components contained in the welding core and the mass percentage of each component in the welding core are as follows:

[0070] C: 0.07%, Si: 0.03%, Mn: 0.4%, Cr: -0.3%, Ni: 0.2%, Cu: 0.2%, S: 0.005%, P: 0.01%, Ti: 0.1%, Mo: 0.1...

Embodiment 3

[0081] A kind of steel welding electrode, described electrode is made up of welding core and coating two parts; Described coating comprises following raw material by weight:

[0082] Marble 275, Fluorite 180,

[0083] 65 parts of ferromolybdenum, 48 parts of rare earth silicon,

[0084] 18 parts of titanium dioxide, 14 parts of zircon,

[0085] 8 parts of rare earth oxide, 26 parts of ferromanganese,

[0086] 36 parts of nickel powder, 6 parts of soda ash,

[0087] 12 parts of nano chromium nitride powder.

[0088] The rare earth oxide is selected from one or both of light rare earth oxides and heavy rare earth oxides.

[0089] Na in the soda ash 2 CO 3 ≥99%, NaCl≤0.6%; Ni in nickel powder≥99.9%, particle size ≤60 mesh.

[0090] The components contained in the welding core and the mass percentage of each component in the welding core are as follows:

[0091] C: 0.075%, Si: 0.025%, Mn: 0.5%, Cr: 0.25%, Ni: 0.3%, Cu: 0.18%, S: 0.007%, P: 0.009%, Ti: 0.19%, Mo: 0.09%, Th...

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Abstract

The invention provides a steel welding rod and a preparation method thereof. The steel welding rod is composed of a core wire and a coating. The coating comprises, by weight, 250-300 parts of marble, 150-200 parts of fluorite, 50-80 parts of ferromolybdenum, 30-60 parts of rare earth silicon, 10-25 parts of titanium dioxide, 10-20 parts of zirconite, 5-11 parts of rare earth oxide, 20-30 parts of ferromanganese, 20-50 parts of nickel powder, 3-8 parts of sodium carbonate and 10-15 parts of nano chromium nitride powder. The steel welding rod provided by the invention is good in performance, the surface of the welding rod is smooth and the rate of finished products is high.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a steel welding electrode and a preparation method thereof. Background technique [0002] New materials are one of the strategic emerging industries supported by the state. New welding materials are the basic materials for the industrialization of new steel materials. As one of the basic manufacturing technologies, welding technology is also an important part of the country's development of high-end equipment manufacturing emerging strategic industries. . Therefore, the development of new welding materials is an important direction for the development of national industrial policies. [0003] As an important branch in remanufacturing engineering, surfacing welding can form a typical metallurgical bond with the base metal. The surfacing layer has a small tendency to peel off during service, and the surfacing alloy can be selected or designed according to the required p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K35/30B23K35/40
CPCB23K35/362B23K35/3073B23K35/40
Inventor 殷世尧
Owner HEFEI ANLI ELECTRIC POWER ENG CO LTD
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