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Preparation method of interface strong metallurgical bonding metal layered composite material

A technology of metallurgical bonding and composite materials, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of unstable composite interface bonding quality, increase raw material cost, reduce production efficiency, etc., and achieve improved composite interface bonding. quality, improve the pass reduction rate, and achieve the effect of strong metallurgical bonding

Active Publication Date: 2020-12-22
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the addition of the intermediate layer not only increases the cost of raw materials and reduces the production efficiency, but also the intermediate layer will react with titanium or steel to form new intermetallic compounds, making the composite interface more complex, resulting in titanium / steel laminated composite panels Composite interfacial bonding quality of bands is not stable

Method used

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  • Preparation method of interface strong metallurgical bonding metal layered composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The titanium material is TA2 pure titanium plate with an initial thickness of 2.0mm; the steel material is Q235 low-carbon steel plate with an initial thickness of 2.0mm. Firstly, the titanium and steel are annealed and pickled to remove the oxide skin on the surface of the titanium and steel; then the surface of the titanium and steel to be composited is continuously machined online with a broach to obtain the corresponding concave-convex structure along the titanium and steel. The surface to be compounded with the trapezoidal concave-convex structure of the steel horizontally arranged, the depth of the cross-sectional shape of the concave-convex structure is 0.5mm, and the top width is 2mm; then the surface to be composited is degreased and polished; finally the reduction rate A titanium / steel layered pre-composite billet was prepared for 48% single-pass cold-rolling composite.

[0035] The titanium / steel layered pre-composite billet is placed in an induction heating ...

Embodiment 2

[0038] The titanium material is a TA1 pure titanium plate with an initial thickness of 2.0 mm; the steel material is a 304 stainless steel plate with an initial thickness of 4.0 mm. Firstly, the titanium and steel are annealed and pickled to remove the oxide skin on the surface of the titanium and steel; then the surface of the titanium and steel to be compounded is continuously machined on-line with a parallel combination milling cutter to obtain the corresponding concave-convex structure. The concave-convex structure of the concave-convex structure that is horizontally arranged on the material and the steel is the surface to be compounded, the depth of the cross-sectional profile of the concave-convex structure is 0.5mm, and the top width is 3.0mm; then the surface to be composited is degreased and polished; Finally, a single-pass hot-rolling composite with a reduction ratio of 52% was carried out to prepare a titanium / steel layered pre-composite billet.

[0039] The titaniu...

Embodiment 3

[0042] The titanium material is a TA2 pure titanium plate with an initial thickness of 5.0 mm; the steel material is a Q345 low-alloy steel plate with an initial thickness of 10.0 mm. Firstly, use parallel combined hobs to continuously machine the uneven structure corresponding to the surface of titanium and steel to be compounded on-line, and obtain the surface to be compounded with a W-shaped appearance along the transverse direction of titanium and steel, and the concave-convex structure The depth of the cross-sectional morphology is 1.0 mm, and the width of the top is 5.0 mm; then the surface to be compounded is degreased and polished; and then explosive compounding is prepared to obtain a titanium / steel layered pre-composite billet.

[0043] The titanium / steel layered pre-composite billet was placed in a flame heating furnace and kept at 750°C for 80 minutes to form a TiC layer with a thickness of about 450nm at the composite interface of titanium and steel. Then the tita...

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Abstract

The invention discloses a preparation method of an interface strong metallurgical bonding metal layered composite material, and belongs to the technical field of metal layered composite material preparation. The method comprises the steps of heating to increase the temperature of a whole titanium / steel layered pre-composite blank to 705 to 875 DEG C, and conducting heat preservation; increasing temperature and heating the surface of a titanium material and the surface of a steel material of the titanium / steel layered pre-composite blank, respectively heating the areas, which are 0.5 to 0.8 time of the thickness of the titanium material and the thickness of the steel material, of the surface of the titanium material and the surface of the steel material towards the direction of a compositeinterface to 935 to 1350 DEG C, keeping the temperature of the composite interface at 705 to 875 DEG C, and then conducting heat preservation; and conducting 1 to 15 passes of hot rolling compoundingon the heated titanium / steel layered pre-composite blank, then conducting air cooling to the room temperature, and obtaining a titanium / steel layered composite plate strip. The method can be used forpreparing the titanium / steel layered composite plate strip with high interface bonding strength at low cost and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of metal layered composite material preparation, and in particular provides a method for preparing an interface-strong metallurgical bonded metal layered composite material. Background technique [0002] Titanium / steel layered composite strip is a typical metal layered composite material, which has the advantages of excellent corrosion resistance and high plasticity of titanium and high strength and low cost of steel. It is used in petroleum, chemical industry, electric power, shipbuilding, It is widely used in marine engineering, national defense industry and daily life. At present, the preparation methods of titanium / steel layered composite strips are mainly explosive composite method and hot rolling composite method. Explosive cladding has problems such as high energy consumption, heavy environmental pollution, and potential safety hazards, and has been gradually replaced by hot rolling cladding. The ho...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B45/00B21B37/74B21B3/00B21B15/00B21B47/00
CPCB21B1/38B21B45/004B21B37/74B21B3/00B21B15/00B21B47/00B21B2001/386
Inventor 刘雪峰白于良张利
Owner UNIV OF SCI & TECH BEIJING
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