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Method for high-temperature rolling of titanium steel composite board with nickel as interlayer

A technology of intermediate layer and clad plate, applied in metal rolling and other directions, can solve the problems such as the inability to guarantee the quality of titanium steel clad plate products, the inability to prevent the mutual diffusion of elements, and the lack of good ductility of the coated metal. To achieve the effect of improving the interface bonding effect, good bonding effect and good plate shape

Inactive Publication Date: 2015-08-12
PANGANG GROUP RESEARCH INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can improve the bonding strength of the interface to a certain extent. However, due to the thin coating, elements such as titanium and iron can penetrate the coating under high temperature or long-term heating conditions and form brittle compounds at the interface, which cannot prevent the interdiffusion of elements. At the same time, due to the lack of good ductility of the coating metal, the problem of uneven interface state will be caused during the rolling process, resulting in the quality of the titanium-steel clad plate prepared by this method cannot be well guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Prepare the titanium-steel composite plate according to the following method:

[0043]a. Blank assembly: ①Two steel plates with a processing size of 200×160×18mm, one titanium plate with a size of 160×120×20mm, two side plates with a size of 120×20×20mm and 200×20×20mm, respectively. The surface is ground and polished to remove surface dirt and oxide layer; the nickel foil with a thickness of 1mm is processed into the size of a titanium plate; Seamless carbon steel pipe; ③Then carry out symmetrical blank assembly in the order of steel plate / titanium plate / nickel foil / steel plate. Between the two steel plates, argon arc welding is used to weld the gap between the steel plate and the side plate and the gap between the side plate and the side plate, so that all materials become a combination; ④ After welding, the seamless carbon steel pipe and the Connect the vacuum pump to evacuate the interior of the assembly to 1×10 -2 Pa; ⑤ After the vacuum degree reaches the require...

Embodiment 2

[0050] Prepare the titanium-steel composite plate according to the following method:

[0051] a. Blank assembly: processing steel plates and titanium plates with dimensions of 200×160×18mm and 160×120×20mm respectively, grinding and polishing the surface to remove surface dirt and oxide layer, and nickel with a thickness of 0.6mm The foil is processed to the size of the titanium plate, and then the adjacent surface of the steel plate and the titanium plate is coated with a release agent, and the billets are assembled symmetrically in the order of steel plate / titanium plate / nickel foil / steel plate, and then the four sides of the blank are welded together, and the inside of the blank is pumped Vacuum treatment, the vacuum degree reaches 1×10 -2 Pa, to obtain the combined blank;

[0052] b. Heating: Put the combined billet into the heating furnace for heating, the heating temperature is 980°C, and the heat preservation is 360min;

[0053] c. Rolling: Take out the combined bille...

Embodiment 3

[0057] Prepare the titanium-steel composite plate according to the following method:

[0058] a. Blank assembly: process steel plates and titanium plates with sizes of 200×160×18mm and 160×120×20mm respectively, and perform grinding and polishing treatment on the surface to remove surface dirt and oxide layer, and nickel foil with a thickness of 2mm It is processed into the size of titanium plate, and then the adjacent surface of the steel plate and the titanium plate is coated with a release agent, and the blanks are assembled symmetrically in the order of steel plate / titanium plate / nickel foil / steel plate, and then the four sides of the blank are welded together, and the inside of the blank is vacuumed processing, vacuum up to 1×10 -2 Pa, to obtain the combined blank;

[0059] b. Heating: Put the combined billet into the heating furnace to heat, the heating temperature is 1050°C, and keep warm for 120min;

[0060] c. Rolling: take out the combined billet that has completed...

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Abstract

The invention relates to the field of manufacturing and machining of titanium steel composite boards, in particular to a method for high-temperature rolling of a titanium steel composite board with nickel as an interlayer. The method for high-temperature rolling of the titanium steel composite board with nickel as the interlayer comprises the following steps that symmetrical assembly is conducted in the steel plate-titanium plate-nickel foil-steel plate sequence, the periphery of black is welded, vacuumizing is conducted in the interior of the blank, and thus a blank combination is obtained; the blank combination is heated for over 120 minutes, wherein the heating temperature ranges from 980 DEG C to 1050 DEG C; the titanium steel composite board is obtained by rolling the heated blank combination. According to the titanium steel composite board obtained through the method, the plate shape is good, no obvious defect exists on the surface, no titanium / iron compound is generated on a combined interface, the combining effect is good, and the combining strength is higher than 1200 MPa and is far higher than the combining strength of similar titanium steel composite boards meeting the national standard.

Description

technical field [0001] The invention relates to the field of preparation and processing of titanium-steel clad plates, in particular to a high-temperature rolling method of titanium-steel clad plates with nickel as an intermediate layer. Background technique [0002] Titanium has good physical, chemical and mechanical properties, but its smelting technology is complicated and the production cost is high, so the price of titanium is very expensive, which greatly limits the promotion and application of titanium. Combining titanium with other metals (such as steel, copper, aluminum, etc.) -Steel composite materials are widely used in chemical, petroleum and other industrial sectors because of their high strength, excellent corrosion resistance and significant economic benefits. [0003] The existing manufacturing methods of clad steel plates include: filling metal ingot rolling method, explosive cladding method, rolling and crimping method, surfacing welding method and the lik...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38
CPCB21B1/38B21B2001/386
Inventor 彭琳李军杨柳于辉栾佰峰林崇智
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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