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Method for preparing non-brazing seam thin compound layer titanium/steel composite board

A clad plate, thin cladding technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problem of unfavorable manufacturing of large-size, thin clad, no-weld titanium/steel clad plates, and increase manufacturing costs. And equipment safety hazards, the bonding strength is not guaranteed and other problems, to achieve the effect of maintaining high quality level, good processing technology performance, excellent bonding performance

Inactive Publication Date: 2009-04-15
XIAN TIANLI CLAD METAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the expanded length of the mold cylinder for PTA with a diameter of Φ7,000mm reaches 21,980mm. If it is made of a titanium / steel composite plate with a length of less than 10,000mm, it will inevitably produce multiple welds, which will also increase the manufacturing cost and equipment. Security risks
[0004] The conventional production method of titanium / steel clad plates is direct explosive welding. Due to the limited size of thin titanium plates available in the market, splicing is required. Defects such as multilayer cracking, local non-bonding, and interface melting will occur during explosive lamination. At the same time, these defects cannot be used. Ordinary welding methods for repair welding will directly lead to the scrapping of the entire composite panel due to partial unbonding, especially not conducive to the manufacture of large-scale, thin-clad, no-weld titanium / steel composite panels
At the same time, the upper limit of the length of the conventional explosive titanium / steel composite plate is about 8,000mm, beyond this length range, the bonding strength cannot be guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] TA2 plate with a size of 8×2,140×2,680mm is selected as the cladding layer, and Q235A steel plate with a size of 84×2,100×2,640mm is used as the base layer. The protective layer is covered with special explosives. This special explosive uses powdery emulsion explosive as the main explosive. The parameters of the emulsion explosive are: detonation velocity ≥ 3,260m / S, detonation heat 4,010kJ / kg, detonation temperature 2,656℃, detonation pressure 5,198Mpa, density (0.90-1.26)g / cm 3 , Violence (compression value of lead column) ≥ 13mm. According to the above-mentioned titanium plate and steel plate size, proportion and explosive performance, the gap between the titanium plate and the steel plate is selected as 14mm, and the gap between them is guaranteed to be basically uniform; the charge height is 50mm, and the explosive is evenly distributed in the On the titanium plate, the height and density are guaranteed to be uniform; a No. 8 electric detonator is used to detona...

Embodiment 2

[0030] TA2 plate with a size of 8×2,140×2,680mm is selected as the cladding layer, and Q235A steel plate with a size of 84×2,100×2,640mm is used as the base layer. The protective layer is covered with special explosives. This special explosive uses powdery emulsion explosive as the main explosive. The parameters of the emulsion explosive are: detonation velocity ≥ 3,260m / S, detonation heat 4,010kJ / kg, detonation temperature 2,656℃, detonation pressure 5,198Mpa, density (0.90-1.26)g / cm 3 , Violence (compression value of lead column) ≥ 13mm. According to the above-mentioned titanium plate and steel plate size, proportion and explosive performance, the gap between the titanium plate and the steel plate is selected as 14mm, and the gap between them is guaranteed to be basically uniform; the charge height is 50mm, and the explosive is evenly distributed in the On the titanium plate, the height and density are guaranteed to be uniform; a No. 8 electric detonator is used to detona...

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Abstract

The invention discloses a method for preparing seamless thin multilayer titanium / steel composite plate and relates to a method for preparing the seamless titanium / steel composite plate with large specifications and a thin multilayer through a combined process of explosive welding plus hot rolling. The method is characterized in that after explosive cladding, a titanium plate and a steel plate form the composite plate through hot rolling. The method adopts a combined process of explosive welding plus hot rolling to prepare the seamless titanium / steel composite plate with the large specifications, an overall length over 10, 000mm and the thin multilayer, thereby not only ensuring the binding property and the specification requirements of the composite plate, but also meeting the demand on the seamless titanium / steel composite plate with the large specifications and the thin multilayer of large-scale pressure equipment.

Description

technical field [0001] The invention relates to a method for preparing a weldless thin-clad titanium / steel composite plate, which relates to a method for preparing a large-scale, thin-clad, and weldless titanium / steel clad plate by using an explosive welding + hot rolling combined process. Background technique [0002] Titanium has the characteristics of light weight, high specific strength, and corrosion resistance, while titanium / steel composite plates take into account the corrosion resistance of titanium and the high strength of steel plates, and the price is relatively low. They are widely used in petrochemical, electric power, hydrometallurgy, and caustic soda. and other industrial equipment and container manufacturing. [0003] With the continuous development of my country's economy, all kinds of equipment and containers are becoming larger and larger, which is reflected in the increasing length, diameter and area of ​​equipment or components. Therefore, the specifica...

Claims

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Application Information

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IPC IPC(8): B21B1/22B21B37/16B21B47/00B21B15/00C21D9/70C21D11/00
Inventor 李选明李平仓高文柱吕利强樊科社郝红卫汪洋庞国庆吴江涛王虎年王思远李山云惠宏涛
Owner XIAN TIANLI CLAD METAL MATERIALS
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