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A preparation method of a tubular conductive rod, a hydraulic bulging device, and a tubular conductive rod

A technology for hydraulic bulging and conducting rods, applied in coupling devices, non-electric welding equipment, circuits, etc., can solve the problems of complex operation, low welding quality, affecting the quality and performance of conducting rods, etc. Excellent performance, saving raw materials and processing costs

Active Publication Date: 2017-08-25
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing a tubular conductive rod, which solves the problems of complicated operation and low welding quality, which affect the quality and performance of the conductive rod when the conventional friction welding is used for the conventional conductive rod

Method used

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  • A preparation method of a tubular conductive rod, a hydraulic bulging device, and a tubular conductive rod
  • A preparation method of a tubular conductive rod, a hydraulic bulging device, and a tubular conductive rod
  • A preparation method of a tubular conductive rod, a hydraulic bulging device, and a tubular conductive rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The preparation method of the tubular conductive rod of the present embodiment comprises the following steps:

[0057] 1) Machining to prepare joints for use; if figure 1 As shown, the end of the joint 1 used for cooperating with the conductive pipe body is the connecting end 2, and the end surface of the connecting end 2 is provided with a circular boss 6 coaxial with the joint, and the circular stepped surface on the periphery of the circular boss 6 4 is the connection end face, and the outer peripheral surface of the joint 1 is provided with a shoulder 3 for welding adjacent to the annular step surface 4; the height of the shoulder is 2 mm, and the length is 14 mm;

[0058] Take the conductive pipe body, such as figure 2 As shown, the conductive pipe body 7 is a tubular body whose cross section is circular and whose length extends along the axial direction. The outer diameter of the conductive pipe body is consistent with the outer diameter of the connecting end of...

Embodiment 2

[0072] The preparation method of the tubular conductive rod of the present embodiment comprises the following steps:

[0073] 1) Machining to prepare joints for subsequent use; the structure of the joints is the same as in Example 1; the difference is that the height of the shaft shoulder is 3 mm and the length is 15 mm; the conductive pipe body is the same as in Example 1 for the structure of the conductive pipe body. The difference is that the height of the bulging section is 3mm and the length is 15mm; the joint and the conductive pipe body are both forged aluminum alloy;

[0074] 2) Pre-welding treatment: Use a wire brush to remove the oxide film on the surface of the joint and the conductive pipe body, and then clean the weld bead with ethanol to avoid adverse effects on the welding quality;

[0075] 3) Assembling before welding: dock the joint with the bulging section of the conductive pipe body for leveling. The outer circumferential surface of the bulging section is f...

experiment example 1

[0083] This experimental example uses MIG welding (comparative example 1), common friction welding (comparative example 2) and the preparation method of the tubular conductive rod described in Example 1 to process the 6063-T6 wrought aluminum alloy tubular conductive rod of the same specification , the material of the conductive pipe body and joint of the 6063-T6 forged aluminum alloy tubular conductive rod is 6063-T6 forged aluminum alloy.

[0084] Among them, comparative example 1 adopts MIG welding process, and the joint processing process is: bar material blanking (the length is reserved for machining allowance)→car forming. Conductive pipe body processing process: pipe blanking (the length is reserved for processing allowance) → turning forming. Both the conductive pipe body and the joint need to be processed with grooves and blunt edges. The weld type is "Y" type. In order to ensure penetration, the weld gap is reserved during welding. Tubular conductive rod manufactur...

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Abstract

The invention discloses a preparation method of a tubular conductive rod, a hydraulic bulging device and a tubular conductive rod. The preparation method comprises: 1) taking a joint whose connecting end face is a stepped surface, and the joint is adjacent to the stepped surface and is provided with a welding take the conductive pipe body, and use the bulging method to radially expand the connection port of the conductive pipe body to form a bulging section; 2) After the joint is leveled with the bulging section of the conductive pipe body, the friction stir welding process is used Welding the butt joint of the joint and the bulging section of the conductive pipe body, and welding the joint and the conductive pipe body together; 3) smoothing the weld seam. The preparation method of the tubular conductive rod of the present invention combines bulging and friction stir welding, and can complete long welding seams, large cross-sections, and welding at different positions at one time, without being limited by the size of the joint and the conductive pipe body, and The equipment is simple and the energy consumption is low; it is suitable for the preparation of tubular conductive rods of different materials and lengths, has strong versatility, and is suitable for mass production of conductive rods.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical conductors, and specifically relates to a method for preparing a tubular conductive rod, and also relates to a hydraulic bulging device for realizing the above-mentioned preparation method and a tubular-type conductive rod obtained by the above-mentioned preparation method. Background technique [0002] The conductive rod is a conductor used to connect components and conduct current in high-voltage power transmission and distribution equipment; it is mostly used in high-voltage electrical appliances such as circuit breakers and combined electrical appliances (GIS) with a voltage level above 10KV, and is used to transmit the power of the high-voltage grid busbar. current equipment. Generally, the tubular conductive rod is composed of a conductive pipe body and joints welded at both ends of the conductive pipe body. In order to reduce the power loss during the operation of the high-v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R43/00H01R43/02H01R43/16H01R13/02H01R31/06B23K20/12B21D26/033B21D26/047
Inventor 韩丽娟薛根奇袁端鹏郭福军田浩林生军罗军李亚磊张柳丽李小欣
Owner PINGGAO GRP
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