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Flawless high-temperature-oxidation-resistant wearproof multilayer surfacing welding electrode

A high-temperature oxidation-resistant, multi-layer surfacing technology, applied in welding media, welding equipment, welding equipment, etc., can solve the problems of high operator skill requirements, high brittleness of cobalt-based electrodes, and unsuitable for wide application, and achieves a scientific and reasonable formula. , Low carbon content, the effect of increasing corrosion resistance

Active Publication Date: 2014-04-16
SHENGYANG HAWEIER SURFACE ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cobalt is a rare metal and is expensive, so it is not suitable for wide application
Moreover, the cobalt-based electrode is relatively brittle. During the welding process, the welding process can only be performed slowly and repeatedly, so that the surfacing layer is gradually and slowly cooled, so that the stress is continuously released and the cracks are eliminated. Therefore, the operator's skills are relatively high. high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to the welding core, the welding core of H08A is adopted, the diameter is 4.0, and the weight coefficient of the coating is 1.0. The coating is composed of the following components according to the following parts by weight: marble 15, rutile 30, titanium dioxide 13, titanium iron 4, medium carbon ferromanganese 16. Ferrosilicon: 2.5, metal chromium: 30, molybdenum powder 3, nickel powder 7, ferroniobium 3, soda ash 2, mica 5, rare earth ferrosilicon 0.4, mix the medicine powder evenly and add potassium sodium water glass 22, potassium sodium water glass The modulus is 3.0, K:Na=3:1, stir evenly, apply on the welding core by hydraulic press, and dry naturally or on drying equipment to be the finished product.

[0017] The welding method of the wear-resistant multi-layer surfacing electrode without cracks and high temperature oxidation resistance is as follows: 1) ordinary welders preheat the weldment to be surfacing to at least 100 °C before welding with oxy-ac...

Embodiment 2

[0019] According to the welding core, the welding core of H08A is used, the diameter is 4.0, and the weight coefficient of the coating is 1.2. The coating is taken according to the following parts by weight: marble 10, rutile 40, titanium dioxide 15, titanium iron 6, medium carbon manganese Iron 20, ferrosilicon: 4, metal chromium: 40, molybdenum powder 5, nickel powder 10, ferroniobium 5, soda ash 3, mica 8, rare earth ferrosilicon 1.5, mix the powder evenly and add potassium sodium water glass 25, potassium sodium water The modulus of the glass is 2.9, K: Na = 3: 1, stir evenly, apply it on the welding core by hydraulic press, and dry it on the drying equipment after natural drying to be the finished product.

[0020] The welding method of using the crack-free and high-temperature oxidation-resistant wear-resistant multilayer surfacing electrode is as follows: 1) Ordinary welders preheat the weldment to be surfacing to at least 110°C before welding with oxy-acetylene, and dir...

Embodiment 3

[0022] According to the welding core, the welding core of H08A is adopted, the diameter is 4.0, and the weight coefficient of the coating is 0.9. The coating is taken according to the following parts by weight: marble 20, rutile 20, titanium dioxide 10, titanium iron 2, medium carbon manganese Iron 12, ferrosilicon: 1, metal chromium: 20, molybdenum powder 1, nickel powder 5, ferroniobium 1, soda ash 1, mica 2, rare earth ferrosilicon 0.2, mix the powder evenly and add potassium sodium water glass 20, potassium sodium water The modulus of the glass is 2.8, K:Na=3:1, stir evenly, apply on the welding core by hydraulic press, after natural drying, dry it on the drying equipment to be the finished product.

[0023] The welding method of using the crack-free and high-temperature oxidation-resistant wear-resistant multilayer surfacing electrode is as follows: 1) Ordinary welders preheat the weldment to be surfacing to at least 110°C before welding with oxy-acetylene, and direct curr...

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Abstract

The invention discloses a flawless high-temperature-oxidation-resistant wearproof multilayer surfacing welding electrode. The welding electrode comprises a core wire and a coating. The core wire, namely a core wire H08A, is 4.0 in diameter. The weight factor of the coating is 0.90-1.2. The coating comprises, by weight, 10-20 parts of marble, 20-40 parts of rutile, 10-15 parts of titanium dioxide powder; 2-6 parts of ferrotitanium, 12-20 parts of mid-carbon ferromanganese, 1-4 parts of ferrosilicon, 20-40 parts of chromium metal, 1-5 parts of molybdenum powder, 5-10 parts of nickel powder, 1-5 parts of ferrocolumbium, 1-3 parts of sodium carbonate, 2-8 parts of mica, 0.2-1.5 parts of rare-earth ferrosilicon and 20-25% of potassium-sodium water glass. The welding electrode is scientific and reasonable in formula, low in cost, flawless in welding surface, high in high-temperature-oxidation resistance and wear resistance and simple in operation process; by the welding electrode, common welding operators can complete welding independently, and productivity and acceptability are improved; the welding electrode has good promotion value.

Description

technical field [0001] The invention relates to a surfacing welding electrode, in particular to a wear-resistant multilayer surfacing welding electrode without cracks and high temperature oxidation resistance. Background technique [0002] As we all know, in industrial production, many equipments work under the condition of high temperature oxidation wear, the service environment is harsh, frequent maintenance is required, and the cost of labor and materials is expensive. For this reason, the surface of many equipment needs to be treated with special processes, the most common method of which is surfacing wear-resistant alloys. In the process of surfacing welding, it is required that the multi-layer welding of surfacing welding electrodes has no cracks, and has good oxidation resistance and wear resistance at high temperatures. At present, the surfacing materials suitable for this special working condition are mainly cobalt-based superalloy surfacing materials. However, co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/365B23K31/02
CPCB23K9/04B23K35/3608
Inventor 宋焯张连成刘爽
Owner SHENGYANG HAWEIER SURFACE ENG TECH
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