Abrasion-resistant zone welding powder

A technology of welding powder and wear-resistant layer, which is applied in the field of surface treatment materials and welding materials, can solve the problems of high brittleness of hard phase, pressure drop in the well, easy peeling of wear-resistant belt, etc., and achieve high surface hardness, low friction coefficient, The effect of not easy to peel off

Inactive Publication Date: 2013-07-17
QINGXIN RUIQI IND MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the wear-resistant bands in high-abrasion environments are mainly high-chromium cast iron and tungsten carbide. These materials can reduce the wear of the rock-to-rod joint in practical applications. \ High brittleness, causing the wear-resistant band to peel off easily when the rotary rod joint is in contact with the casing, and the casing wears a lot
Once the casing is worn out, the pressure in the well will drop, which will seriously affect the drilling and production work

Method used

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  • Abrasion-resistant zone welding powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The grinding layer solder powder provided by the best embodiment 1 of the present invention comprises the following components by weight percentage:

[0014] Chromium: 4-15%; Nickel: 3-10%; Manganese: 0.2-2%; Vanadium: 1-3%; Silicon: 1-5%; Rare Earth: 0.5-2%; Carbon: 1-5%; The amount is iron and trace impurities.

[0015] The above-mentioned solder powder is mixed with ferrochrome (FeCr57) block, nickel block, ferromanganese (FeMn75) block, vanadium iron (FeV50) block, metal silicon block, rare earth particles, carbon particles and iron block in a certain weight ratio and then melted, It is obtained by dusting, drying and sieving.

[0016] Such as figure 1 As shown, ferrochromium (FeCr57) block: 17.5Kg; nickel block: 5Kg; ferromanganese (FeMn75) block: 0.7Kg; vanadium iron (FeV50) block: 4Kg; Granules: 2Kg and iron block: 65.8Kg are mixed and placed in an intermediate frequency furnace to heat to 1000°C-1500°C and kept for 2 hours to fully melt the various components...

Embodiment 2

[0024] The grinding layer welding powder provided by the best embodiment 2 of the present invention contains the following components in weight percentage: chromium: 4-15%; nickel: 3-10%; manganese: 0.2-1%; vanadium: 1-3%; tungsten : 2-10%; silicon: 1-5%; rare earth: 0.5-2%; carbon: 1-5%; the balance is iron and trace impurities.

[0025] The above-mentioned welding powder is composed of ferrochromium (FeCr57) block, nickel block, ferromanganese (FeMn75) block, vanadium iron (FeV50) block, tungsten iron (FeW70) block, metal silicon block, rare earth particles, carbon particles and The iron blocks are mixed and obtained by melting, dusting, drying and sieving.

[0026] Such as figure 1 As shown, ferrochromium (FeCr57) block: 17.5Kg; nickel block: 5Kg; ferromanganese (FeMn75) block: 0.7Kg; vanadium iron (FeV50) block: 4Kg; : 4Kg; Rare earth particles: 1Kg; Carbon particles: 2Kg and iron block: 58.8Kg The mixture is fully mixed and placed in an intermediate frequency furnace to...

Embodiment 3

[0033] The grinding layer welding powder provided by the best embodiment 3 of the present invention contains the following components in weight percentage: chromium: 4-15%; nickel: 3-10%; manganese: 0.2-2%; vanadium: 1-3%; molybdenum : 0.5-3%; tungsten: 2-10%; silicon: 1-5%; rare earth: 0.5-2%; carbon: 1-5%; the balance is iron and trace impurities.

[0034] The above-mentioned welding powder is composed of ferrochromium (FeCr57) block, nickel block, ferromanganese (FeMn75) block, vanadium iron (FeV50) block, molybdenum iron (FeMo60) block, tungsten iron (FeW70) block, metal silicon block in a certain weight ratio , rare earth particles, carbon particles and iron blocks are mixed and obtained by melting, powder spraying, drying and sieving.

[0035] Such as figure 1 As shown, ferrochromium (FeCr57) block: 17.5Kg; nickel block: 5Kg; ferromanganese (FeMn75) block: 0.7Kg; vanadium iron (FeV50) block: 4Kg; (FeW70) block: 7Kg; metal silicon block: 4Kg; rare earth particles: 1Kg; ...

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Abstract

The invention relates to abrasion-resistant zone welding powder, and belongs to the technical field of welding materials and surface treatment materials. The welding powder comprises the following components by weight percent: 4-15% of chromium, 3-10% of nickel, 0.2-2% of manganese, 1-3% of vanadium, 1-4% of silicon, 0.5-2% of rare earth, 1-5% of carbon, and the balance of iron and a trace of impurities. Using the welding powder provided by the invention for surface spray coating, the formed abrasion-resistant zone (layer) is high in surface hardness, low in friction coefficient, uniform, compact, flat and smooth on the surface and has no residue, can be well fused with a matrix, does not readily scale off, has no cracks, and can be spray coated repeatedly. The abrasion-resistant zone welding powder is applicable to various new and old drill rods, various mechanical easy-wear parts, especially mining machines and the like.

Description

technical field [0001] The invention relates to a wear-resistant band welding powder, which belongs to the technical field of welding materials and surface treatment materials. technical background [0002] The wear-resistant layer (belt) of the rotary rod joint protects the rotary rod and the casing with certain wear resistance and anti-friction properties to avoid strong wear. The outer wall of the rotary rod is isolated from the inner wall of the casing, so that the rotary rod joint does not contact the casing wall or the well wall, so as to protect the rotary rod joint. At present, the wear-resistant bands in high-abrasion environments are mainly high-chromium cast iron and tungsten carbide. These materials can reduce the wear of the rock-to-rod joint in practical applications. \The high brittleness makes the wear-resistant band easy to peel off when the rotary rod joint is in contact with the casing, and the casing wears a lot. Once the casing is worn out, the pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
Inventor 吴国仕
Owner QINGXIN RUIQI IND MATERIALS
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