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High-temperature manufacturing method for titanium-steel composite plate taking titanium as interlayer

An intermediate layer and clad plate technology, applied in the direction of metal rolling, etc., can solve the problems that the product quality of titanium steel clad plate cannot be well guaranteed, cannot prevent the interdiffusion of elements, and the coating metal has no good ductility, etc. To achieve the effect of improving the interface bonding effect, good bonding effect, and good plate shape

Inactive Publication Date: 2015-09-16
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

preparation example Construction

[0025] The high-temperature preparation method of the titanium-steel clad plate with nickel as the intermediate layer of the present invention comprises the following steps:

[0026] a. Blank assembly: carry out symmetrical blank assembly according to the order of steel plate / titanium plate / nickel foil / steel plate, then weld the blanks around, and vacuumize the inside of the blank to obtain a combined blank; among them, adjacent to the steel plate and the titanium plate The surface is coated with a release agent, and the thickness of the nickel foil is 0.5mm;

[0027] b. Heating: heating the combined billet, the heating temperature is 950-1000°C, and the heating time is 120-360min;

[0028] c. Rolling: Roll the heated combined billet; among them, the starting rolling temperature is not lower than 920°C, the final rolling temperature is 600-700°C, the total rolling deformation is ≥80%, and the single-pass deformation 10%~15%, rolling speed 0.1~2m / s;

[0029] d. Finishing: sep...

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 the surface dirt and oxide layer; the nickel foil with a thickness of 0.5mm 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, apply release agent on the adjacent surface of steel plate and titanium plate, set the side plates around the titanium plate, and 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, pass through the seamless carb...

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 0.5mm 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 950°C, and the heat preservation is 360min;

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

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Abstract

The invention relates to the manufacturing and processing field of titanium-steel composite plates, in particular to a high-temperature manufacturing method for a titanium-steel composite plate taking titanium as an interlayer. The method includes the following steps that a steel plate, a titanium plate, nickel foil and a steel plate are symmetrically assembled into a blank in sequence, the periphery of the blank is welded, vacuumizing is conducted in the blank, and a combined blank is obtained; the combined blank is heated for 120 min-360 min at the temperature of 950 DEG C-1000 DEG C; the heated combined blank is rolled, and the titanium-steel composite plate is obtained. The titanium-steel composite plate obtained according to the method has a good shape, no obvious defects are formed on the surface, no titanium / iron compound is generated on the combination interface, the combination effect is good, and the combination strength is greater than 195 MPa and is much higher than that of similar titanium-steel composite plates manufactured according to national standards.

Description

technical field [0001] The invention relates to the field of preparation and processing of titanium-steel composite plates, in particular to a high-temperature preparation method of titanium-steel composite 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 meth...

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 杨柳李军彭琳于辉栾佰峰林崇智王鹏
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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