A symmetrical hot-rolled composite plate slab and its sealing welding method

A welding method and composite plate technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of difficult configuration of production conditions, large weld bevel size, low sealing welding efficiency, etc., to avoid welding Bad defects, good welding consistency, and the effect of ensuring welding efficiency

Active Publication Date: 2021-07-20
科斯焊接技术(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the length of the composite slab reaches more than 10 meters, it will be difficult and costly to configure the production conditions such as the turning positioner, welding equipment, and the height of the workshop
[0013] 2) For the sealing and welding of composite panels with thick cladding materials, the size of the weld groove is too large, and the sealing and welding efficiency is low

Method used

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  • A symmetrical hot-rolled composite plate slab and its sealing welding method
  • A symmetrical hot-rolled composite plate slab and its sealing welding method
  • A symmetrical hot-rolled composite plate slab and its sealing welding method

Examples

Experimental program
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Effect test

Embodiment 1

[0048] A method for sealing and welding symmetrical hot-rolled clad plate slabs, the technical scheme and steps are as follows:

[0049] 1. S1 designs and manufactures a frame with a special structure. For the specific structure and size of the frame, see figure 2 shown.

[0050] cladding side of the enclosure ( figure 2 The left side of the isosceles trapezoid is designed as an isosceles trapezoid, the length of the lower base of the isosceles trapezoid is greater than or equal to the sum of the thicknesses of the upper and lower cladding materials, and the length difference between the lower and upper bases of the isosceles trapezoid is not limited. And the preferable range is 2mm to 20mm.

[0051] outside the frame ( figure 2 On the right side of the cross-section, a certain length is reserved on the upper and lower sides as the blunt edge of the weld bevel. The optimal range of the blunt edge length is 2-5mm, and the other parts are designed to be trapezoidal. The l...

Embodiment 2

[0062] A symmetrical hot-rolled composite plate slab, the overall structure of which is as follows Figure 4 As shown, it includes an upper base material, a lower base material, a covering material and a surrounding frame. The upper base material and the lower base material cover the upper and lower sides of the covering material. The base material and the lower base material are welded separately, and the frame includes two parts, the first part constitutes the inner periphery of the frame, its cross-section is isosceles trapezoidal, the upper bottom edge is connected with the cladding material, and the second part constitutes the outer periphery of the frame , its cross-section is trapezoidal, the lower base of the second part is connected to the lower base of the first part, and the length of the lower base of the second part is smaller than the lower base of the first part, and the end of the upper substrate There is a bevel on the side close to the frame. The length of t...

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Abstract

The invention relates to a symmetrical hot-rolled composite plate slab and its sealing and welding method. The surrounding frame includes two parts: the first part constitutes the inner side of the surrounding frame, and its cross section is isosceles trapezoidal; The cross-section is trapezoidal, and the length of the lower base of the second part is smaller than that of the first part; a bevel is provided at the end of the upper base material close to the side of the frame; through the innovative design of the frame structure, a special groove structure is formed, which will The sealing welding process is innovatively divided into two-step welding process; automatic welding equipment such as arc welding robots or special planes, laser seam tracking and adaptive welding equipment are used; horizontal welding is adopted, and the root bead adopts high penetration welding process, The filling weld bead adopts a high deposition rate welding process; compared with the prior art, the present invention realizes High-quality, high-efficiency, low-cost sealing welding.

Description

technical field [0001] The invention relates to a production method of a symmetrical hot-rolled composite plate, in particular to a symmetrical hot-rolled composite plate slab and a sealing welding method thereof. Background technique [0002] The overall technological process of symmetrical hot-rolled composite plate manufacturing includes: plate pretreatment, plate assembly, sealing and welding, vacuuming, hot rolling and finishing separation. The hot-rolled clad plate slab generally adopts the following structure, as shown in the attached drawing figure 1 As shown, there are two layers of cladding material in the middle, and the upper and lower pieces are the base material. The surrounding frame is fixed around the cladding material. The groove formed by the material must be fully welded. One or two air holes are set on the substrate or the surrounding frame for vacuuming. After the vacuum degree meets the requirements, the final welding is carried out, and the vacuum i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K9/16B23K9/127B32B3/08B32B7/10
CPCB23K9/1274B23K9/16B23P15/00B32B3/08B32B7/10
Inventor 陈小燕王彩虹
Owner 科斯焊接技术(无锡)有限公司
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