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A kind of resistance heat riveting welding method of plastic plate and aluminum plate

A resistance heating, plastic plate technology, applied in the field of pressure welding, can solve the problem of service temperature restriction of a single cemented part, and achieve the effect of effective and reliable connection and reliable connection

Inactive Publication Date: 2018-07-10
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to realize the welding of non-conductive plastic plates and conductive aluminum plates and solve the defect that a single cemented part has service temperature constraints

Method used

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  • A kind of resistance heat riveting welding method of plastic plate and aluminum plate
  • A kind of resistance heat riveting welding method of plastic plate and aluminum plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Select an ABS plastic plate 1 with a thickness of 2mm and an industrial pure aluminum plate 2 with a thickness of 1mm. The semi-hollow rivet is an iron rivet with a diameter of 3mm and a length of 6mm; punch a hole in the center of the overlapping area of ​​the ABS plastic plate 1. The diameter of the hole is 3mm, and the debris and other impurities around the hole are cleaned. Fit the semi-hollow iron rivets into the prefabricated holes and at the same time ensure that the iron rivets are fully in contact with the lapped surface of the pure aluminum plate and that the iron rivets are in contact with the holes without gaps. The welding time is 13s, the welding current is 3.0kA, and the electrode pressure is 0.22kN. Open the cooling water valve, place the assembled weldment between the upper and lower electrodes of the spot welder, and ensure that the center rivet in the overlapping area of ​​the weldment is on the same axis as the two electrodes; power on for welding. ...

Embodiment 2

[0022] Select an ABS plastic plate 1 with a thickness of 2mm and a 2A12 aluminum alloy plate 2 with a thickness of 1mm. The semi-hollow rivet is an iron rivet with a diameter of 2mm and a length of 4mm; punch a hole in the center of the overlapping area of ​​the ABS plastic plate 1, The diameter of the hole is 2mm, and impurities such as debris around the hole are cleaned. Assemble the semi-hollow iron rivets into the prefabricated holes and at the same time ensure that the iron rivets are in full contact with the overlapping surface of the aluminum alloy plate and that the iron rivets are in contact with the holes without gaps. The welding time is 16s, the welding current is 3.5kA, and the electrode pressure is 0.27kN. Open the cooling water valve, place the assembled weldment between the upper and lower electrodes of the spot welder, and ensure that the center rivet in the overlapping area of ​​the weldment is on the same axis as the two electrodes; power on for welding. Th...

Embodiment 3

[0025] Select an ABS plastic plate 1 with a thickness of 2mm and an industrial pure aluminum plate 2 with a thickness of 1mm. The semi-hollow rivet is a stainless steel rivet with a diameter of 4mm and a length of 6mm; punch a hole in the center of the overlapping area of ​​the ABS plastic plate 1. The diameter of the hole is 4mm, and the debris and other impurities around the hole are cleaned. Assemble the semi-hollow stainless steel rivets into the prefabricated holes and at the same time ensure that the stainless steel rivets are in full contact with the lapped surface of the pure aluminum plate and that the stainless steel rivets are in contact with the holes without gaps. The welding time is 15s, the welding current is 3.3kA, and the electrode pressure is 0.25kN. Open the cooling water valve, place the assembled weldment between the upper and lower electrodes of the spot welder, and ensure that the stainless steel rivet at the center of the overlapping area of ​​the weldm...

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Abstract

The purposes of a resistance heat rivet welding method for a plastic plate and an aluminum plate are to realize welding of the non-conductive plastic plate and the conductive aluminum plate and overcome the defect that a simplex cement part has service temperature limit. The resistance heat rivet welding method includes the steps that (1) the thickness of the plastic plate (1) is t1, the thickness of the aluminum plate (2) is t2, the length l of a semitubular rivet (3) is larger than or euqal to (t1+t2), the diameter D of the semitubular rivet (3) is equal to 0.8-2.0t1, and the diameter of a lateral punching hole of the plastic plate (1) at an overlap joint is equal to the diameter D of the semitubular rivet (3); and (2) a single-level pressurization mode is adopted in the welding process, the welding current is 3.0-3.5 kA, the welding time is 13-16 s, and the electrode pressure is 0.22-0.27 kN; and after the parameters are set, welding is conducted, and a weldment is taken out after welding.

Description

technical field [0001] The invention relates to the technical field of pressure welding, in particular to the resistance heat rivet welding technology of plastic plates and aluminum plates. Background technique [0002] At present, with the accelerated development of automobile lightweight, the application of plastics in automobiles is becoming more and more extensive. The lightweight of automobiles makes plastics widely used as raw materials in the field of automobile parts manufacturing. Based on this background requirement, realizing effective and reliable connections between plastics and plastics and between plastics and metal parts has become a current research hotspot. [0003] After searching the prior art, it is found that Chinese Patent No. CN100409995C is a glue welding connection method. This method is to apply a layer of glue on the overlapping area of ​​the surface of the two layers of materials to be welded, and then use the melting welding heat source to car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/72B29C65/60B29C65/02
CPCB29C65/02B29C65/602B29C65/72B29C66/43B29C66/7422
Inventor 张昌青吕广明刘雄波靳少龙杨黎东
Owner LANZHOU UNIVERSITY OF TECHNOLOGY