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Explosive cladding welding method for titanium-steel composite board soldering joint

A technology of explosive cladding and welding methods, which is applied in the direction of welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problem that the weld seam of titanium-steel composite plate cannot be penetrated, and achieve the smooth surface of the weld seam, The effect of simple method and convenient production

Inactive Publication Date: 2009-01-14
LUOYANG SHUANGRUI METAL COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a method of explosive cladding welding of titanium-steel clad plate welds, which solves the technical problem that the welds of titanium-steel clad plates cannot be penetrated, and can directly clad and weld titanium materials on steel welds. The exposed steel surface of the seam makes the titanium layer and the steel layer combined into one, so as to obtain a complete weld seam with complete penetration, so that the interface between the titanium layer and the steel layer on the weld seam is combined, and the surface is smooth, beautiful, and corrosion-resistant Long service life, providing a reliable method and approach for obtaining high-quality titanium-steel clad plate welds

Method used

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  • Explosive cladding welding method for titanium-steel composite board soldering joint

Examples

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Effect test

Embodiment 1

[0021] Two titanium-steel clad plates (the material combination is TA2 / 16MnR, the size is (6+34)×1500×3000mm) are welded together, and the weld length is 3000mm. The size of the arc-shaped titanium plate TA2 is 6×120×3100mm, the height of the support is 8mm, ammonium nitrate explosive is used, and it is directly placed on the upper surface of the arc-shaped titanium plate TA2, and the charge per unit area is 3.4g / cm 2 , use the No. 8 industrial electric detonator to detonate through the black wire explosive charge at the end, so that the titanium layer and the steel layer are clad into one. After ultrasonic testing, the composite rate of the entire weld is 100%. Sampling was carried out to test the bonding strength. The interface shear strength was ≥312Mpa, which was higher than the requirement of ≥196Mpa stipulated in the GB / T 8547-2006 "Titanium-Steel Composite Plate" standard. The interface was firmly bonded and a fully welded titanium-steel composite was obtained. plate c...

Embodiment 2

[0023] Two pieces of titanium-steel clad plates (the material combination is TA10 / Q235B, the size is (4+20)×2000×4000mm) are welded together, and the weld length is 4000mm. The size of the arc-shaped titanium plate TA10 is 4×100×4100mm, and the height of the support is 6mm. Ammonium nitrate explosives are used to directly lay on the upper surface of the arc-shaped titanium plate TA10, and the charge per unit area is 2.8g / cm 2 , use the No. 8 industrial electric detonator to detonate through the black wire explosive charge at the end, so that the titanium layer and the steel layer are clad into one. After ultrasonic testing, the composite rate of the entire weld is 100%. Sampling was carried out to test the bonding strength. The interface shear strength was ≥267Mpa, which was higher than the requirement of ≥196Mpa stipulated in the GB / T 8547-2006 "Titanium-Steel Composite Plate" standard. The interface was firmly bonded and a fully welded titanium-steel composite was obtained. ...

Embodiment 3

[0025] Two titanium-steel clad plates (the material combination is TA1 / 16MnR, the size is (8+60)×1400×2700mm) are welded together, and the weld length is 2700mm. The size of the arc-shaped titanium plate TA1 is 8×140×2800mm, the height of the support is 10mm, ammonium nitrate explosive is used, and it is directly placed on the upper surface of the arc-shaped titanium plate TA1, and the charge per unit area is 4.0g / cm 2 , use the No. 8 industrial electric detonator to detonate through the black wire explosive charge at the end, so that the titanium layer and the steel layer are clad into one. After ultrasonic testing, the composite rate of the entire weld is 100%. Sampling was carried out to test the bond strength. The interface shear strength was ≥292Mpa, which was higher than the requirement of ≥196Mpa stipulated in the GB / T 8547-2006 "Titanium-Steel Composite Plate" standard. The interface was firmly bonded and a fully welded titanium-steel composite was obtained. plate com...

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Abstract

The invention discloses an explosion cladding and welding method of titanium-steel compound plate welding seams. The titanium plate used for cladding is firstly pressed into an arc-shaped titanium plate 3. The base plates of two pre-butt-jointed titanium-steel compound plates are processed into smooth arcs corresponding to the arc-shaped titanium plate 3. A groove is formed on the compound plates. The smooth arcs of the base plates, the groove of the compound plates and the arc-shaped titanium plate are grinded by abrasive paper or buffing wheel to remove the oxides on the surface of the metals and expose metallic luster. Then, the titanium-steel compound plate is arranged on a sand foundation 7, and the arc-shaped titanium plate is arranged over the smooth arcs of the base plate supported by a supporter 4. The height of the supporter is adjustable, ensuring that an arc-shaped welding seam 5 is formed between the smooth arc and the arc-shaped titanium plate. The explosive 2 is arranged on the upper surface of the arc-shaped titanium plate. Explosive charge quantity is determined by the area of explosion cladding unit. The explosive is ignited by 8# industrial electric detonator, ensuring that the arc-shaped titanium plate and the base plate are clad into an integrated body, and a complete welding titanium-steel compound plate with full penetration is gained. The welding seam has a smooth surface, is good-looking and corrosion resistance, and has a long service life.

Description

technical field [0001] The invention belongs to the field of welding technology, and in particular relates to an explosive cladding welding method for welding seams of titanium-steel composite plates. Background technique [0002] Titanium-steel composite panels have broad application prospects in industries such as thermal power, nuclear power, shipbuilding, rail transit, weapons, salt making, and alkali making. However, since titanium and iron cannot melt together, a complete weld seam with complete penetration of titanium-steel clad plate cannot be obtained by fusion welding. [0003] At present, the welding of titanium-steel composite plates is still carried out indirectly by the method of inlaying titanium strips [see the national standard GB / T 13149-91 "Technical Conditions for Welding Titanium and Titanium Alloy Clad Steel Plates"], the interface between the titanium layer and the steel layer on the weld It is not a complete one, and the process is complicated, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08B23K20/24B23K103/18
Inventor 侯发臣岳宗洪韩刚
Owner LUOYANG SHUANGRUI METAL COMPOSITE MATERIAL
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