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Method for producing bimetal composite material by adopting cold core continuous casting and rolling process

A composite material and bimetal technology, applied in metal rolling and other directions, can solve the problems of small selection of materials, large one-time investment, etc., and achieve high-efficiency production process methods, high yield and metal utilization rate, and blank size and shape. Effects with low precision requirements

Active Publication Date: 2012-12-19
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has high productivity, good quality and low cost, and can greatly reduce the consumption of metal materials, but requires a large one-time investment and a small range of material selection.

Method used

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  • Method for producing bimetal composite material by adopting cold core continuous casting and rolling process
  • Method for producing bimetal composite material by adopting cold core continuous casting and rolling process
  • Method for producing bimetal composite material by adopting cold core continuous casting and rolling process

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Embodiment 1

[0029] as attached figure 1 As shown, the cold core base material 1 and the metal cladding material 3 with different physical, chemical and mechanical properties can be selected according to the specific use requirements of the composite pipe or rod such as acid resistance or alkali resistance, corrosion resistance and oxidation resistance. The base material 1 is a finished metal pipe or bar at normal temperature, and the molten cladding material 3 is evenly and continuously coated on the surface of the cold core base material 1 by using the chilled core roll continuous casting and rolling process, and then compounded by high temperature continuous casting and rolling take shape.

[0030] In the first embodiment of the present invention, the steel-aluminum composite round pipe is produced by cold core continuous casting and rolling technology on a vertical casting and rolling machine. Such as figure 1 As shown, the specific steps are as follows:

[0031] Step 1, cold core...

Embodiment 2

[0039] The second embodiment of the present invention is to produce steel-aluminum composite rods on a vertical casting and rolling machine by adopting cold core continuous casting and rolling technology. Such as figure 2 As shown, the specific steps are as follows:

[0040] Step 1, the cold core base material 1 is made of ordinary carbon steel Q235 finished bar, and its surface is treated by removing scale and degreasing to make its surface clean.

[0041] In step 2, aluminum alloy 3A21 is selected as the metal cladding material 3, and the molten aluminum alloy cladding material is placed in the ladle 4.

[0042] Step 3, use the inlet pinch guide device 2 to send the processed substrate 1 into the round hole of the casting roll 5 along the vertical casting rolling direction. The inside of the casting roll is cooled by circulating water, and the surface of the cold substrate 1 It forms an annular crystallizer with the casting roll pass.

[0043] Step 4, use the ladle 4 to ...

Embodiment 3

[0048] In the third embodiment of the present invention, the steel-aluminum composite pipe is produced by a cold core continuous casting and rolling process on a horizontal casting and rolling machine. Such as image 3 As shown, the specific steps are as follows:

[0049] Step 1, cold core base material 1 is made of ordinary carbon steel Q235 finished steel pipe, and its surface is treated with iron scale removal and degreasing to make its surface clean.

[0050] In step 2, the metal cladding material 3 is made of aluminum alloy 3A21, and the molten aluminum alloy is placed in the ladle 4 .

[0051] Step 3, use the inlet pinch guide device 2 to send the treated base material 1 into the round hole of the casting roll 5 along the horizontal casting direction, and the inside of the casting roll is cooled by circulating water, and the surface of the cold base material 1 and the The casting roll pass forms an annular crystallizer.

[0052] Step 4: Continuously inject the claddin...

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Abstract

The invention relates to a method for producing a bimetal composite material by adopting a cold core continuous casting and rolling process. The method is characterized by comprising the following steps of: using an inlet pinch and guide device to feed a cold core base material into a groove of a casting and rolling roller, continuously pouring a molten-state covering material in a ladle into an annular crystallizer constituted by the base material and the groove of the casting and rolling roller, driving the casting and rolling roller, continuously and uniformly coating the molten-state covering material on the surface of the cold core base material, and arranging a secondary cooling device and an outlet pinch and guide device on the outlet side so as to realize cold core continuous casting and rolling composite molding of a bimetal composite pipe or rod. The method has the advantages that the bimetal composite pipe or rod produced by the technological method has the advantages of low requirements on size and shape precision of a stock, no need of pre-assembly, high finished product rate, high metal utilization rate, no limitations on length and thickness of a covering layer of a product, a wide range of specifications of the product and the like, and the method is of a high-efficient production technological method. The product can be directly used as a finished product or be used as the stock for pipe rolling, cold drawing and other process steps.

Description

technical field [0001] The invention belongs to the field of composite processing of metal materials, and relates to a method for producing bimetallic composite materials by adopting a cold core continuous casting and rolling process, in particular to a method for producing bimetallic composite pipes or rods. Background technique [0002] Bimetallic composite pipe (rod) is a kind of high-efficiency composite material. Through a certain process, two different metals (ie, base metal and cladding metal) are formed on the entire contact surface to form a tight and firm bond. It is widely used It is used in industrial technology fields such as petrochemical industry, machinery manufacturing, electric power, shipbuilding, papermaking, ocean development, and atomic energy application. At present, the metals used to manufacture bimetallic tubes (rods) mainly include carbon steel, alloy steel, corrosion-resistant steel, copper and copper alloys, aluminum and aluminum alloys, nickel a...

Claims

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Application Information

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IPC IPC(8): B21B1/46
Inventor 黄华贵王巍杜凤山池慧黄东梅
Owner YANSHAN UNIV
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