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Method for overlaying cone by cobalt-chromium-tungsten hard alloy

A hard alloy, cobalt chromium tungsten technology, applied in the field of surfacing, can solve the problems of poor heating of the cone and inability to adjust the welding position of the cone, etc., and achieve the effects of stable technical performance, wide application and high efficiency

Active Publication Date: 2013-12-04
JIANGLIAN HEAVY IND GRP CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

In the past, we used a single manual electrode surfacing technology for surfacing hard alloys. There was no auxiliary tooling during the surfacing process, and the welding position of the cone could not be adjusted during surfacing, and the heating of the cone was not good. Some welding defects appear on the surface of the weld seam

Method used

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  • Method for overlaying cone by cobalt-chromium-tungsten hard alloy

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Experimental program
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Embodiment Construction

[0013] Such as figure 1 As shown, the present invention is achieved in this way, and the method steps are: the tip of the cone 9 extends into the cylinder 8, the side wall of the cone 9 is fixed on the end of the cylinder 8 by spot welding, and the bottom of the cylinder 8 The front and rear ends of the tube are respectively connected to the roller 7 and the adjustable roller frame 6 in turn. The roller 7 is connected to the small tube inner wall surfacing welding machine base 1 through the base 4, and the side wall of the small tube inner wall surfacing welding machine base 1 is connected to the small tube surfacing welding torch 3, and the small tube surfacing welding gun 3 is connected to the small tube surfacing welding gun 3. The welding torch 3 extends into the cone 9, and a small tube surfacing welding torch 3 is used to surfacing the cone 9. The welding wire of the surfacing 2 is ER309MoL and a 3mm surface layer (ER316L), the specification is φ1.6mm, and the surfacing t...

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Abstract

The invention relates to a method for overlaying a cone by a cobalt-chromium-tungsten hard alloy. The method comprises the following steps that: the tip end of the cone is stretched into a barrel body; the side wall of the cone is fixed at the end of the barrel body in a point welding way; the front end and the rear end of the bottom of the barrel body are connected with a roller and an adjustable roller frame respectively; the roller is connected with a small pipe inner wall overlaying machine base through a base; the side wall of the small pipe inner wall overlaying machine base is connected with a small pipe overlaying gun; the small pipe overlaying gun is stretched into the cone; and the small pipe overlaying gun is adopted to overlap the cone. The method has the advantages that: the cobalt-chromium-tungsten hard alloy overlaying technology is stable in performance, wide in application range and high in efficiency.

Description

technical field [0001] The invention relates to a surfacing welding method, in particular to a cobalt-chromium-tungsten hard alloy surfacing welding method for a cone. Background technique [0002] In industries such as boilers and pressure vessels, surfacing cemented carbide equipment is an extremely critical piece of equipment in the entire production and operation equipment. At the same time, due to the high hardness and wear resistance of cemented carbide, it is widely used in Various fields such as construction machinery, energy, mining, manufacturing and electronics are called "industrial teeth". The capacity and output of my country's cemented carbide industry account for more than one-third of the world's total, and it is the largest producer of cemented carbide. Currently, more than 40% of cemented carbide is used in upstream industries such as energy and mining. [0003] With the rapid development of my country's economic construction and the continuous advancem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04B23K37/053
Inventor 李发林胡凌杰龙本仁王晓冬易淑芳王玲朱志平谢江藜
Owner JIANGLIAN HEAVY IND GRP CO LTD
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