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A ceramic wear-resistant surfacing electrode

A surfacing welding rod and welding rod technology, applied in welding equipment, welding medium, welding equipment, etc., can solve the problems of low impact resistance, high carbon equivalent, easy peeling, etc., and achieve good corrosion resistance, stable welding arc, and slag easy effect

Active Publication Date: 2019-02-19
甘肃酒钢集团西部重工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing wear-resistant surfacing electrodes mainly increase the hardness of the surfacing metal layer by adding tungsten carbide particles or increasing carbon content and other alloys, which generally have high carbon equivalent, low plasticity, low impact resistance, and are easy to peel off (drop blocks) And other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 A ceramic wear-resistant surfacing welding electrode, the diameter of the electrode is 3.2mm, 4.0mm, 5.0mm, including welding core and coating; the weight factor of the coating accounting for the total weight of the electrode is 0.45; wherein

[0018] The welding core is based on the total weight of the welding core, and its chemical composition is: C 2.46%, Cr 11.3%, Mn 1.32%, Nb 0.132%, Mo 0.468%, Ti 0.234%, V 0.264%, Si 0.65 %, P 0.021%, S 0.023%, the balance is Fe;

[0019] The drug skin is based on the total weight of the drug skin, and its chemical composition is: 20% marble, 17% fluorite, 23% mica + bentonite, 13% rutile + titanium dioxide, 7% ferro-titanium, 6% ferromanganese %, ferrosilicon 6%, ferrochrome 4%, nickel 2%, rare earth oxide 2%.

[0020] The preparation method of the ceramic wear-resistant surfacing welding electrode adopts the traditional process, namely: welding core grinding to remove rust, straightening → dry mixing powder → addin...

Embodiment 2

[0025] Embodiment 2 A ceramic wear-resistant surfacing welding electrode, the diameter of the electrode is 3.2mm, 4.0mm, 5.0mm, including welding core and coating; the weight coefficient of coating accounting for the total weight of the electrode is 0.46; wherein

[0026] The welding core is based on the total weight of the welding core, and its chemical composition is: C 2.35%, Cr 10.5%, Mn 1.15%, Nb 0.159%, Mo 0.659%, Ti 0.181%, V 0.338%, Si 0.52 %, P 0.018%, S 0.019%, the balance is Fe;

[0027] The drug skin is based on the total weight of the drug skin, and its chemical composition is: 20% marble, 17% fluorite, 23% mica + bentonite, 13% rutile + titanium dioxide, 7% ferro-titanium, 6% ferromanganese %, ferrosilicon 6%, ferrochrome 4%, nickel 2%, rare earth oxide 2%.

[0028] The preparation method of the ceramic wear-resistant surfacing electrode is the same as that in Example 1.

[0029] The use method of the ceramic wear-resistant surfacing electrode comprises the fol...

Embodiment 3

[0033] Embodiment 3 A ceramic wear-resistant surfacing electrode, the diameter of the electrode is 3.2mm, 4.0mm, 5.0mm, including the core and the coating; the weight factor of the coating accounting for the total weight of the electrode is 0.43; wherein

[0034] The welding core is based on the total weight of the welding core, and its chemical composition is: C 3.86%, Cr 9.3%, Mn1.12%, Nb 0.28%, Mo 0.32%, Ti 0.11%, V 0.12%, Si 0.22%, P ≤0.013%, S ≤0.011%, the balance is Fe;

[0035] The drug skin is based on the total weight of the drug skin, and its chemical composition is: 18% marble, 20% fluorite, 21% mica + bentonite, 15% rutile + titanium dioxide, 5% ferro-titanium, 8% ferromanganese %, ferrosilicon 4%, ferrochromium 3%, nickel 3%, rare earth oxide 3%.

[0036] The preparation method of the ceramic wear-resistant surfacing electrode is the same as that in Example 1.

[0037] The use method of the ceramic wear-resistant surfacing electrode comprises the following steps...

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Abstract

The invention relates to a ceramic wear-resistant surfacing welding electrode. The basic diameter of the welding electrode is 3.2mm, 4.0mm and 5.0mm; the welding electrode comprises a welding core wire and a coating; the weight coefficient of the coating relative to the total weight of the welding electrode is 0.42 to 0.47, wherein the welding core wire comprises the following chemical ingredients in percentage by weight by taking the total weight of the welding core wire as a standard: 2.11% to 3.86% of C, 9.3% to 11.9% of Cr, 1.12% to 1.93% of Mn, 0.11% to 0.28% of Nb, 0.32% to 0.97% of Mo, 0.11% to 0.39% of Ti, 0.12% to 0.96% of V, 0.22% to 0.97% of Si, smaller than or equal to 0.03% of P, smaller than or equal to 0.04% of S and the balance Fe; by taking the total weight of the coating as a standard, the coating comprises the following chemical ingredients in percentage by weight: 18% to 22% of marble, 15% to 20% of fluorite, 21% to 26% of mica and bentonite, 12% to 15% of rutile and titanium dioxide, 5% to 8% of ferrotitanium, 5% to 8% of ferromanganese, 4% to 7% of ferrosilicon, 3% to 6% of ferrochromium, 1% to 3% of nickel and 1% to 3% of rare earth oxide. The ceramic wear-resistant surfacing welding electrode disclosed by the invention is excellent in performance, wide in surfacing welding range and suitable for welding and surfacing external and national various grades of high-manganese steel and cast steel base materials.

Description

technical field [0001] The invention relates to the technical field of surfacing welding repair and remanufacturing, in particular to a ceramic wear-resistant surfacing welding electrode. Background technique [0002] Surfacing welding is an economical and rapid process for surface modification of materials, which is of great significance to improve the service life of equipment parts, enhance equipment performance, rationally use precious metal materials, reduce equipment investment and maintenance costs, etc. Based on this, surfacing repair has been widely used in the remanufacturing repair of equipment parts in various industrial sectors. Since among the three main surfacing welding consumables: electrodes, welding wires, and welding strips, the application of electrodes for wear-resistant conditions exceeds 70%, so the market application prospects of wear-resistant surfacing electrodes are broad. [0003] Usually, in order to effectively play the role of the wear-resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/365B23K9/04B23K35/40
CPCB23K9/04B23K35/3053B23K35/365B23K35/40
Inventor 杨高基张燕强张涛宋俊义景超门永卿李军何成善
Owner 甘肃酒钢集团西部重工股份有限公司