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Surfacing electrode for repairing hot forged mould

A technology for surfacing welding electrodes and hot forging dies, which is applied in welding media, manufacturing tools, welding equipment, etc., can solve the problems of large machining costs and heat treatment costs, reduced mechanical properties, and low economic benefits, and is conducive to machining. , Excellent performance, stable combustion effect

Inactive Publication Date: 2010-12-01
LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The economic benefit of the former is not high, while the latter will be scrapped after the mold falls 3 to 5 times, and due to the reduction of the quality of the base material of the forging die, its mechanical properties will decrease rapidly, causing the mold to be scrapped in advance, and at the same time, it will cost a relatively large machining cost and heat treatment costs

Method used

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  • Surfacing electrode for repairing hot forged mould
  • Surfacing electrode for repairing hot forged mould

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]The components of the coating used in the surfacing electrode of the present invention and their mass parts are as follows: marble: 30%; fluorite: 20%; zircon sand: 3%; soda ash: 2%; silicon micropowder: 5%; White powder: 3%; phlogopite: 3%; rare earth fluoride: 2%; metal manganese: 3%; ferrosilicon: 2%; ferro-titanium: 4%; chromium metal: 8%; : 6%; aluminum-magnesium alloy: 1%.

[0039] The mass percentage of the chemical composition of the deposited metal in this example is: C: 0.068; S: 0.0085; P: 0.016; Si: 0.259; Mn: 1.54; Cr: 2.06; Ni: 2.87; margin.

[0040] After mixing the above-mentioned skin raw materials evenly, add 43-48Be (20°C) pure sodium water glass accounting for 20-30% of the mass content of the solid component according to the mass of the solid component to prepare a paste for the skin. Process Electrode preparation is carried out on electrode production equipment.

[0041] The welding rod produced according to the above process has excellent produc...

Embodiment 2

[0043] The components and parts by mass of the coating are as follows: marble: 36%; fluorite: 14%; zircon sand: 2%; soda ash: 1%; silicon micropowder: 2%; 1%; rare earth fluoride: 1%; manganese metal: 5%; ferrosilicon: 5%; ferro-titanium: 6%; chromium metal: 4%; 2%.

[0044] Other conditions are identical with embodiment 1.

[0045] The welding rod produced according to the above process has excellent production process performance, smooth surface of the welding rod, high yield and stable eccentricity; the arc is easy to ignite and burns smoothly during the welding process; Beautiful, slag is easy to remove; the hardness of the deposited metal surfacing layer is moderate.

Embodiment 3

[0047] The components of the coating and their parts by mass are as follows: marble: 40%; fluorite: 12%; zircon sand: 1.5%; soda ash: 0.5%; silicon micropowder: 3%; 0.5%; rare earth fluoride: 1%; manganese metal: 7%; ferrosilicon: 3%; ferro-titanium: 5%; chromium metal: 8%; 1.5%.

[0048] Other conditions are identical with embodiment 1.

[0049] The welding rod produced according to the above process has excellent production process performance, smooth surface of the welding rod, high yield and stable eccentricity; the arc is easy to ignite and burns smoothly during the welding process; Beautiful, slag is easy to remove; the hardness of the deposited metal surfacing layer is moderate.

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Abstract

The invention discloses a surfacing electrode for repairing a hot forged mould, which uses a low-carbon steel H08A core wire conforming to the GB / T3429 requirement. The solid component quality content of coating is as follows: 30-40% of marble, 12-20% of fluorite, 1.5-3% of zircon sand, 0-2% of soda ash, 2-5% of silicon epitaxy material, 1-3% of titanium white, 0-3% of flogopite, 1-2% of rare earth fluoride, 3-7% of manganese metal, 2-5% of ferrosilicon, 4-6% of ferrotitanium, 4-8% of chromium metal, 4-8% of ferromolybdenum, 6-12% of metallic nickel and 1-2% of aluminium magnesium alloy. The invention has favorable welding rod performance, smooth welding rod surface, high yield and stable eccentricity; electric arc is easy to ignite and is stable to burn; coating is even to melt, a welding line is attractive in shape, and slag is easy to clean; and a deposition metal weld metal buildup has moderate welding state hardness which reaches the requirements of the hot forged mould, thus improving the service life cycle of the hot forged mould.

Description

technical field [0001] The invention relates to a welding technology, in particular to a surfacing welding electrode for repairing a hot forging die. Background technique [0002] The cost of the forging industry includes raw materials, labor, molds and energy, among which mold costs account for a considerable proportion. Due to fracture, collapse, thermal fatigue, thermal wear, etc., the mold will fail. In the traditional process, after the mold fails, the mold can be repaired by local welding or overall drop. The economic benefit of the former is not high, while the latter will be scrapped after the mold falls 3 to 5 times, and due to the reduction of the quality of the base material of the forging die, its mechanical properties will decrease rapidly, causing the mold to be scrapped in advance, and at the same time, it will cost a relatively large machining cost and heat treatment costs. [0003] According to the development of the mold industry, the use of surfacing we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/365B23K35/40
Inventor 薛旭斌姚上卫
Owner LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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