High-performance hard-surface surfacing flux-cored wire

A high-performance, hard-faced technology, applied in welding equipment, welding media, welding/cutting media/materials, etc., can solve the problems of complex wear-resistant ceramic inlay manufacturing process, high-cost use effect, and high cost, and reduce welding materials Cost and maintenance costs, significant economic and social benefits, effects of improved wear resistance and production efficiency

Active Publication Date: 2021-07-30
GUANGXI BRILLIANT MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manufacturing process of wear-resistant ceramic inlays is complicated and the cost is too high; ordinary wear-resistant surfacing welding generally uses a single high-chromium composite metal, which does not necessarily obtain satisfactory results while paying high costs

Method used

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  • High-performance hard-surface surfacing flux-cored wire
  • High-performance hard-surface surfacing flux-cored wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The high-performance hard surface-welded core welding wire is composed of the outer skin and the dielectric core, the composition and weight included in the dielectric core: chromium: 51%; graphite 12%; silicon: 2.50%; manganese : 1.45%; molybdenum: 0.21%; nickel: 0.53%; niobium: 13.2%; titanium 0.47%; aluminum: 0.21%; vanadium: 1.06%; titanium: 0.43%; copper: 0.21%, iron: margin.

[0014] Niobium (NB): can refine the grain and reduce the overheating sensitivity of the steel and the backfire, improve the strength, improve the welding performance refine grain, the rectification of the reinforcement, the alloy steel and the carbon element reaction Generate tantalum rigid phase, micro hardness> 235 GPa (> 2400 kg / mm2), is still hard than Ji Yugu. Therefore, a certain proportion of can improve the overall hardness and wear resistance of the diesel wire wire can be greatly improved.

[0015] Its preparation step is: 1) Pharmaceutical core components are mixed with the formulat...

Embodiment 2

[0017] The high-performance hard surface-welded core welding wire is composed of the outer skin and the core, and the components and weight included in the dielectric core are: chromium: 44.2%; graphite: 11.02%; silicon: 2.27%; Manganese: 1.45%; molybdenum: 0.21%; nickel: 0.54%;: 0.53%; aluminum: 0.21%; vanadium: 1.02%; titanium: 0.43%; copper: 0.21%; iron: margin.

[0018] The preparation step is: 1) The components of the die core are mixed according to the formulation and thoroughly stir it. After mixing, it is placed in a dryer to dry, 150 ° C insulation for 1 h, resulting in a pharmaceutical core powder; 2) Place the outer skin in medicine On the belt machine of the core welding wire, the outer skin is selected from the SPCC steel strip, and the outer skin steel strip is rolled into a U-shaped groove, and then the core powder is added to the U-groove, the filling rate of the drug core powder is 48%. Then, then the U-tank is crushed by the molding machine, drawn to a diameter o...

Embodiment 3

[0020] The high-performance hard surface of the present invention consists of the outer skin and the core, and the components contained in the dielectric core are: chromium: 47.9%; graphite: 11.45%; silicon: 2.34%; Manganese: 1.45%; molybdenum: 0.21%; nickel: 0.45%; titanium: 0.45%; aluminum: 0.21%; vanadium: 1.0%; titanium: 0.43%; copper: 0.21%; iron: margin.

[0021] The preparation step is: 1) The components of the die core are mixed according to the formulation and thoroughly stir it. After mixing, it is placed in a dryer to dry, 140 ° C is held in 1 h, resulting in a pharmaceutical core powder; 2) Place the outer skin in the medicine On the belt machine of the core welding wire, the outer skin is selected from the SPCC steel strip, and the outer skin steel strip is rolled into a U-shaped groove, and then the core powder is added to the U-groove, the filling rate of the drug core powder is 48%. Then, then the U-tank is crushed by the molding machine, drawn to a diameter of 2.8...

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Abstract

The invention relates to a high-performance hard-surface surfacing flux-cored wire. The flux-cored wire consists of a sheath and a flux core, and the flux core comprises the following components in percentage by weight of 38-53% of chromium, 11-12% of graphite, 2 to 2.5% of silicon, 1.15 to 1.5% of manganese, 0 to 0.22% of molybdenum, 0.32 to 0.54% of nickel, 12.5 to 14.9% of niobium, 0.42 to 1.07% of of titanium, 0.21 to 0.64% of aluminum, 0.85 to 1.28% of vanadium, 0.42 to 0.64% of titanium, 0.21 to 0.64% of copper, and the balance of iron. A wear-resistant surfacing part manufactured by adopting the high-performance hard-surface surfacing flux-cored wire is high in wear resistance, can keep the hardness of more than or equal to 63 HRC at 350 DEG C according to experiments, is suitable for surfacing treatment of medium-temperature wear, and is simple in production process, low in production cost and suitable for wide industrial production.

Description

Technical field [0001] The present invention relates to the field of welding materials, and in particular, to a high-performance hard surface-solder core welding wire. Background technique [0002] Soldering is an economical and rapid process method of material surface modification, widely used in manufacturing repair of various industrial sector parts. Soldering can be used with self-protection core welding energy to effectively improve repair efficiency, shorten production cycle and reduce costs, have a large social and economic benefits for improving mechanical equipment and parts. In today's cement, steel, thermal power and other industries, wear problems such as grinding rolls, extruded rolls are increasingly concerned, and it is one of the key factors of production costs and economic benefits. Currently, a mainstream scheme that solves the wear problem of the above equipment is to use a wear-resistant core welding wire to rehabilitate to extend the service life of the equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/32B23K35/36
CPCB23K35/32B23K35/36
Inventor 王建河梁建武
Owner GUANGXI BRILLIANT MACHINERY CO LTD
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