Dissimilar metal connection structure and manufacturing method of transition lead for titanium coil rolling

A technology for connecting structures and dissimilar metals, which is applied in the field of metallurgy, can solve the problems of unequal thickness of connection parts and damage to related equipment, and achieve the effects of avoiding falling off, improving production efficiency and ensuring safety

Active Publication Date: 2022-08-05
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention firstly provides a connection structure for difficult-to-weld dissimilar metals, which solves the problem that the existing difficult-to-weld dissimilar metals are connected, and the thickness of the connection part is not equal, which may cause damage to related equipment

Method used

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  • Dissimilar metal connection structure and manufacturing method of transition lead for titanium coil rolling
  • Dissimilar metal connection structure and manufacturing method of transition lead for titanium coil rolling
  • Dissimilar metal connection structure and manufacturing method of transition lead for titanium coil rolling

Examples

Experimental program
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Effect test

Embodiment 1

[0044] First, prepare two industrial pure titanium plates with a width of 1200mm and a length of 100mm, both of which are half the thickness of the titanium coil, and prepare two stainless steel plates with the same thickness and width at the same time. 9 trapezoidal notches, of which the upper bottom of the trapezoidal notch is 100mm, the lower bottom is 50mm, and the notch depth is 60mm. Do the same, that is, make the same notch. Secondly, along the edge of the inverted trapezoid between the notch and the notch of the titanium plate and the stainless steel plate, the groove is processed by grinding, and the groove angle is 45°. Thirdly, the inverted trapezoid of the titanium plate is pressed into the gap of the stainless steel plate along the groove by a press. Connecting piece, stack two layers of connecting piece together, so that the upper and lower connecting pieces are symmetrical with their bonding surfaces as symmetrical planes; again, laser welding method is used, a...

Embodiment 2

[0048] First, prepare two industrial pure titanium plates with a width of 1050mm and a length of 100mm, both of which are half the thickness of the titanium coil; prepare two stainless steel plates with the same thickness and width;

[0049] At one end of the titanium plate, 11 T-shaped notches are cut by laser. The long side of the T-shaped notches is 60mm, the short side is 30mm, the depth of the notches is 20+20mm, the spacing between adjacent trapezoidal notches is equal to 90mm, and the gap between adjacent trapezoidal notches is equal to 90mm. The shape of the part is an upside-down T-shape; do the same for the stainless steel plate, i.e. make the same notch. Secondly, along the edge of the inverted trapezoid between the notch and the gap of the titanium plate and the stainless steel plate, the groove is processed by grinding, and the groove angle is 60° and 30°; the inverted trapezoid of the stainless steel plate is moved along the groove by a press. Press into the gap ...

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Abstract

The invention discloses a method for manufacturing a dissimilar metal connection structure and a transition lead band used for rolling a titanium coil, and relates to the field of metallurgy. First, after the existing difficult-to-weld dissimilar metal connection is solved, the thickness of the connecting part varies, which may affect related equipment. the problem of causing damage. The technical scheme adopted in the present invention is as follows: a dissimilar metal connection structure includes at least two layers of connecting sheets arranged in a stack, each layer of the connecting sheets includes a first connecting plate and a second connecting plate that are embedded with each other, and at least two layers of connecting sheets are stacked to form In the connecting body, the first connecting plates of two adjacent layers of connecting sheets are connected by welding, and the second connecting plates of two adjacent layers of connecting sheets are connected by welding. The mechanical connection between the first connecting plate and the second connecting plate is achieved by mutual fitting of the notches-protrusions, so as to ensure the force requirement between the two connecting plates. The first connecting plate is a titanium plate, the second connecting plate is a stainless steel plate, and the connecting body formed by stacking the connecting sheets is a transition lead for titanium coil rolling, which can be used for titanium coil rolling production.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a connection structure of difficult-to-weld dissimilar metals, a transition tape used when a steel plate is switched to a titanium plate on a production line where titanium and steel are collinear, and a manufacturing method thereof. Background technique [0002] In the rolling production of titanium coils, it is a common practice to use rolling equipment to produce titanium coils, and the use of stainless steel lead strips can reduce costs. After the titanium coil is connected with the stainless steel lead tape, the connecting joint needs to transmit a large tension and experience the high temperature of the annealing furnace in the intermediate annealing process. [0003] Conventional welding methods cannot be used for the connection of titanium coils and steel strips, because the physical and chemical properties of titanium and steel are quite different. When the direct fusion weldi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/12B23K26/21B23K33/00B23P15/00
CPCB23K33/00B23P15/00B23K26/12B23K26/123B23K26/21
Inventor 刘正林唐新新王泽龙
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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