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A Narrow Gap Plate Tube Resistance Welding Device

A technology of resistance welding and narrow gap, which is applied in the direction of resistance welding equipment, roller electrode welding, roller electrode, etc., can solve the problems of crevice corrosion and low strength of end weld seam, and achieve the elimination of gaps, enhanced corrosion performance, and strength high effect

Active Publication Date: 2018-02-09
GANSU LANPEC TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a narrow-gap plate-tube resistance welding device, which solves the problems of low end-face weld strength and easy gap corrosion during the use of plate bundles of welded plate heat exchangers

Method used

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  • A Narrow Gap Plate Tube Resistance Welding Device
  • A Narrow Gap Plate Tube Resistance Welding Device
  • A Narrow Gap Plate Tube Resistance Welding Device

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention is further described as follows:

[0023] refer to Figure 4 , 5 , 6, 7, 8, a narrow-gap plate tube resistance welding device, including a power loading mechanism 605, the piston rod of the power loading mechanism 605 is hinged to one end of the crank arm 602, and the other end of the crank arm 602 is mounted on a roll A column electrode 601; a lower roller electrode 606 is arranged below the matching position of the upper roller electrode 601, and the lower roller electrode 606 is installed on the lower beam 609; the curved arm 602 and the lower beam 609 pass through an insulating pin 608 Hinged: the lower beam 609 and the power loading mechanism 605 are installed on the device platform 607 to form a resistance welding device, and the resistance welding device is installed on the numerical control hydraulic machine 1001 to realize its movement in the up and down direction, and...

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Abstract

The invention discloses a narrow-gap plate pipe electric resistance welding device which comprises a power loading mechanism, wherein the piston rod of the power loading mechanism is hinged to one end of a crank arm; an upper pin roller electrode is mounted at the tip of the other end of the crank arm; a lower pin roller electrode is arranged below a position matched with the upper pin roller electrode and is mounted on a lower cross beam; the crank arm is hinged to the lower cross beam through an insulating pin shaft; the lower cross beam and the power loading mechanism are mounted on a device platform to form the electric resistance welding device; the electric resistance welding device is mounted on a numerical control hydraulic machine to realize movement in the up-and-down direction, and realize movement in the front-and-back direction through a transmission mechanism. According to the invention, the problems that a welding seam is low in strength and is likely to be corroded at the end part of a plate bundle during the manufacturing process of a traditional welding plate heat exchanger are solved.

Description

technical field [0001] The invention belongs to the technical field of welding and design and manufacture of heat exchangers, and in particular relates to a narrow-gap resistance welding device for welding seams at the ends of plate bundles. Background technique [0002] The general process of manufacturing a corrugated plate fully welded plate heat exchanger is to stamp the plate through the mold first, then combine the stamped corrugated plates, and use the two large disc electrodes that pass the current to weld the long seam to obtain Resistance welded seams to form a single plate tube from which media can flow. After multiple plate tubes are stacked, it is necessary to weld the end welds between the plate tubes. After welding, different media can flow separately, so that one medium flows through the plate tubes, and another medium flows between the plate tubes. , the two media will not mix. However, after a plurality of plate tubes are stacked to form a plate bundle, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/06B23K11/02B23K11/30B23K11/36
CPCB23K11/002B23K11/02B23K11/062B23K11/3036B23K11/36
Inventor 孙海生常春梅胡国栋郝开开
Owner GANSU LANPEC TECH
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