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Single purpose high-frequency induction welding wire heating apparatus for hot wire TIG welding

A high-frequency induction heating and welding wire technology, used in welding equipment, arc welding equipment, metal processing equipment, etc., can solve the problems of reduced hot wire efficiency, reduced magnetic deflection, and unsolved aluminum alloy welding problems.

Inactive Publication Date: 2005-03-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the HST welding method cannot infinitely reduce the control of the magnetic deflection blow, and the efficiency of the hot wire also drops to a large extent. In addition, in DC TIG welding, this method cannot be used to reduce the magnetic deflection blow. also not resolved

Method used

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  • Single purpose high-frequency induction welding wire heating apparatus for hot wire TIG welding
  • Single purpose high-frequency induction welding wire heating apparatus for hot wire TIG welding

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specific Embodiment approach 1

[0005] Specific implementation mode one: combine figure 1 , figure 2 Describe this embodiment, this embodiment is made up of welding wire 1, housing 2, induction coil 3, insulating conduit 4, high-frequency power supply 5; The axes of the insulating conduit 4 are coincident, the head and the end of the induction coil 3 are respectively connected to the two output terminals of the high-frequency power supply 5, and the two ends of the insulating conduit 4 pass through the holes 2-1 and hole 2 at both ends of the housing 2 respectively. -2, the welding wire 1 passes through one end of the insulating conduit 4 , and the outer circular surface of the welding wire 1 is slidably connected with the inner circular surface of the insulating conduit 4 . The selection parameters of the high-frequency power supply 5 are output power 15KVA, output frequency 50-500KHz, output current 200-600A.

specific Embodiment approach 2

[0006] Specific implementation mode two: combination figure 1 , figure 2 To illustrate this embodiment, the induction coil 3 in this embodiment is made of a copper pipe as a wire, and the first and last ports of the copper pipe are the water inlet and the water outlet of the cooling water respectively. Other compositions and connections are the same as in the first embodiment. In this embodiment, the heat generated on the induction coil 3 can be taken away by the circulating flow of cooling water, so that the induction coil 3 can work at a normal temperature.

specific Embodiment approach 3

[0007] Specific implementation mode three: combination figure 1 To describe this embodiment, an air port 4-1 is added at one end of the insulating conduit 4 in this embodiment, and the air port 4-1 is an air inlet port for the shielding gas. Other compositions and connections are the same as those in the second embodiment. In this embodiment, the welding wire 1 can be isolated from air so as not to be oxidized during welding.

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Abstract

The invention relates to a kind of device using high frequency induction to heat the welding thread when hot thread TIG welding. The circling wire coils the insulation conduit, and makes the magnetic induction axis of the circling wire and the axis of the insulation conduit superposited. Two ends of the inducting wire connect respectively to the two exporting ends. The two ends of the insulation conduit respectively pass through the two holes of the inter body. The welding thread passes through one end of the insulation conduit. And outer round surface of the welding thread connect to inter round surface. The invention can heat the welding thread with high frequency heating, eliminate magnetic blow phenomenon, speed up the heating, adjust the heating depth, and heat evenly, and control the heating temperature. It can be used for heating all kinds of metal welding thread, and has simple structure so as to be repaired easily.

Description

Technical field: [0001] The invention relates to hot wire TIG welding equipment, in particular to a special high-frequency induction heating welding wire device for hot wire TIG welding. Background technique: [0002] The existing hot-wire TIG (Hot-Wire TIG) welding is a high-efficiency TIG welding method. It preheats the welding wire on the basis of ordinary TIG welding to increase the heat input and increase the melting of the welding wire and the base metal. speed, thereby improving welding efficiency. Under the same welding specification, the hot wire TIG welding method can increase the melting speed of the welding wire by 20-50g / min, and the welding speed can be more than doubled to 100-300mm / min. At the same time, hot wire TIG welding retains all the advantages of TIG welding such as stable arc and excellent weld performance. Traditional hot wire TIG welding is to pass a certain current on the welding wire before the welding wire is sent into the molten pool, and use...

Claims

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Application Information

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IPC IPC(8): B23K9/235
Inventor 杨春利邱灵林三宝伍昀朱亚萍
Owner HARBIN INST OF TECH
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