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Automatic building-up technique and device of shell copper alloy conduction band TIG

An automatic surfacing and copper alloy technology, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of low welding efficiency, low dilution rate of surfacing layer, poor welding quality, etc., to improve productivity and welding process Good repeatability, reduce the effect of processing steps

Inactive Publication Date: 2012-01-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the surfacing welding in China adopts the manual arc surfacing welding process, which not only has low welding efficiency, but also has poor welding quality and low dilution rate of the surfacing layer.

Method used

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  • Automatic building-up technique and device of shell copper alloy conduction band TIG
  • Automatic building-up technique and device of shell copper alloy conduction band TIG
  • Automatic building-up technique and device of shell copper alloy conduction band TIG

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, combining figure 1 , the TIG automatic surfacing device for shell copper alloy guide band of the present invention, it is made up of welding system (21), welding system movement adjustment mechanism (22) and projectile body movement mechanism (23), and welding system (21) connects welding system The movement regulating mechanism (22), the movement regulating mechanism (22) of the welding system is connected with the elastic body movement mechanism (23).

[0024] The welding system (21) includes a cold wire feeder (1), a hot wire feeder (2), a hot wire power supply (3), a TIG surfacing welding power supply (4), a welding torch (5), a cold wire Wire feeder (6), hot wire feeder (7), water shower pipe on the back of the body (8) and water tank (9), cold wire feeder (1) connected to hot wire feeder (2), hot wire The wire feeder (2) is connected to the hot wire power supply (3), the TIG surfacing welding power supply (4) is set on the right side of the device, ...

Embodiment 2

[0028] Example 2, combined with figure 1 , figure 2 , the present invention cannonball copper alloy guide band TIG automatic surfacing process, the welding process is as follows:

[0029] Step 1: Control the movement of the welding head and the welding workpiece through the PLC human-machine control interface. After centering the relative position of the welding torch and the workpiece, preset the welding current, projectile rotation speed and rotation mode through the PLC, and the uniform speed and stepping two One mode, the projectile body adopts the uniform rotation mode when the surfacing welding is relatively narrow, and the stepping rotation mode is used when the surfacing welding elastic belt is wider, the cold wire, hot wire feeding speed, welding head swing amplitude and speed, and arc lifting time Parameters such as current and current can be observed and adjusted in real time;

[0030] Step 2: Before the welding arc is ignited, pass cooling water to cool the weld...

Embodiment 3

[0033] Example 3, combined with figure 1, the TIG automatic surfacing device for the shell copper alloy guide belt of the present invention has an automatic feeding and clamping mechanism, the welding head can automatically swing according to the required belt width, the welding head can realize free movement in the X-Y two-dimensional direction, and at the same time It can realize the adjustment of Z direction to realize the centering of the welding torch and the surfacing projectile; the projectile can carry out two rotation modes of uniform speed and step rotation under the action of the projectile rotation drive system, and the constant speed rotation is suitable for welding with narrow elastic belts. Stepping rotation is suitable for welding with wider elastic bands. All welding parameters can be pre-set by the control panel and can be controlled and adjusted in real time. The movement mode of the workpiece is: the projectile to be surfacing is fixed by the pneumatic dev...

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Abstract

The invention aims to provide a shell copper alloy conduction band TIG automatic overlaying process and a device thereof, which can ensure good-quality rotating band welding process, adopt a double wire feed system of a hot wire and a cold wire to improve welding efficiency and reduce dilution factor of overlaying layers, and adopt a PLC control system. The device consists of a welding system, a welding system movement adjusting mechanism and a shell body movement mechanism, wherein the welding system is connected with the welding system movement adjusting mechanism which is connected with the shell body movement mechanism. The invention simplifies processing technology, reduces production cost, manufacturing procedures of the conventional process, production time and workload, improves productivity, reduces material consumption, saves cost and improves connecting reliability; the welding process has good repeatability so as to easily realize automatic production; and the optimized design of a shell body structure simplifies the structure of a powder chamber, and contributes to solving the problems of poor strength of a band trough and small safety margin.

Description

(1) Technical field [0001] The invention relates to a welding technology, in particular to a TIG automatic surfacing welding process and device for a copper alloy conduction band of a cannonball. (2) Background technology [0002] The copper alloy layer deposited on the surface of the steel substrate can improve the electrical conductivity, thermal conductivity and surface hardness of the steel. This technology is widely used in the aerospace and weapon manufacturing fields. For example, in the assembly of shell belts, the traditional process uses a mechanical method to embed copper alloy rings on the steel substrate. This method increases stress concentration and weakens the strength of the projectile body. The wall thickness of the ring groove will make the inner hole diameter of the projectile Shrinking, thereby increasing the technological difficulty of processing the projectile body, reducing the amount of charge, and reducing the explosive power. Simultaneously, it ta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04B23K9/12
Inventor 吕世雄黄永宪杨士勤陈基明杨涛曲杰
Owner HARBIN INST OF TECH
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