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Robotic automated one-step flame spray welding method for nickel-based tungsten carbide

A technology of nickel-based tungsten carbide and flame spray welding, which is applied in the direction of gas flame welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of high welding workers, unstable welding quality, and low production efficiency, and achieve high production efficiency The effect of low cost, high material utilization rate and simple equipment

Active Publication Date: 2021-06-08
福尼斯(南京)表面工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current flame welding operation is often carried out manually. Manual welding has problems such as unstable welding quality, poor working conditions, and low production efficiency, and requires high technical requirements for welding operators.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] Embodiment: stainless steel test block, length 250mm, width 50mm, thickness 25mm, welding process is as follows:

[0024] (1) Grinding and cleaning the workpiece before welding: lay the stainless steel workpiece flat, and use the angle grinder to polish the surface of the workpiece to remove rust, oxides and impurities on the surface; use alcohol or acetone soaked rag to wipe the surface of the workpiece to remove the surface of the workpiece oil and water; preheat the workpiece to 600°C and keep it warm for 2 hours;

[0025] (2) Configure welding equipment: clamp the flame spray gun on the ABB robot, connect the powder feeder to the flame spray gun, adjust the powder feed rate in the powder feed controller to ≤45g / min, and the control error range to ≤3g / min; ABB 1440 robot, the robot arm length is 1.4m; ABB 1440 robot is equipped with ABB robot control cabinet, water tank, one-step flame spray gun, powder feeder and powder feed controller;

[0026] (3) Set up the weld...

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PUM

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Abstract

The invention discloses a robot automatic one-step flame spray welding nickel-based tungsten carbide welding method, which comprises (1) grinding and cleaning the workpiece before welding; (2) configuring welding equipment; (3) setting the welding process and (4) implementing welding After one layer is welded, the welding position needs to be re-aimed before the next layer is welded; the welding operation is completed after passing the inspection. The invention has the characteristics of good stability, simple equipment, energy saving and high efficiency, and high material utilization rate.

Description

technical field [0001] The invention relates to the field of robot welding, in particular to a welding method for robot automatic one-step flame spray welding nickel-based tungsten carbide. Background technique [0002] Flame spray welding technology is mainly engaged in strengthening the parts that bear high stress load and impact wear, improve the wear resistance of the workpiece, and increase the service life of the workpiece. For example, spray welding strengthening or repairing of various gears, spline shafts, piston pins, valves, gear lever forks, etc. of automobiles can not only make scrapped parts continue to be used after repair, but also prolong the service life of new parts. Generally, the service life of the parts after flame spray welding can be increased by 2 to 5 times. [0003] The powder of nickel-based tungsten carbide alloy mainly refers to the addition of high-hardness wear-resistant material tungsten carbide (WC) on the basis of self-fluxing alloy, so t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K5/213B23K5/24B23K5/12
CPCB23K5/12B23K5/213B23K5/24
Inventor 李阳汪辉聪
Owner 福尼斯(南京)表面工程技术有限公司