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

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example one:

[0029] As attached figure 1 As shown, the cold core substrate 1 and the metal cladding 3 with different physical, chemical and mechanical properties can be selected according to specific use requirements such as acid or alkali resistance, corrosion resistance and oxidation resistance of the composite pipe or rod. The substrate 1 is a finished metal pipe or bar at room temperature. The molten cladding 3 is uniformly and continuously coated on the surface of the cold core substrate 1 by using the cold-core roll continuous casting and rolling process, and the surface of the cold-core substrate 1 is continuously cast and rolled at high temperature. Formed.

[0030] The first embodiment of the present invention is to produce steel-aluminum composite round pipes on a vertical casting and rolling mill using cold core continuous casting and rolling technology. Such as figure 1 As shown, the specific steps are as follows:

[0031] Step 1. The cold core base material ...

Example Embodiment

[0038] Embodiment two:

[0039] The second embodiment of the present invention is to produce steel-aluminum composite bars on a vertical casting and rolling mill using 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 plain carbon steel Q235 finished bar, and the surface is treated with iron scale removal and degreasing to make the surface clean.

[0041] Step 2, the metal clad material 3 is an aluminum alloy 3A21, and the molten aluminum alloy clad material is placed in the ladle 4.

[0042] Step 3. Use the entrance pinch guide and guard device 2 to send the processed substrate 1 into the round hole of the casting roll 5 along the vertical casting and 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 ...

Example Embodiment

[0047] Embodiment three:

[0048] The third embodiment of the present invention uses a cold core continuous casting and rolling process to produce a steel-aluminum composite pipe on a horizontal casting and rolling mill. Such as image 3 As shown, the specific steps are as follows:

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

[0050] Step 2, the metal clad material 3 is an aluminum alloy 3A21, and the molten aluminum alloy is placed in the ladle 4.

[0051] Step 3. Use the entrance pinch guide and guard device 2 to feed the processed substrate 1 into the round hole of the casting roll 5 along the horizontal casting direction. The inside of the casting roll is cooled by circulating water, and the surface of the cold substrate 1 The casting roll pass forms an annular crystallizer.

[0052] Step 4. Continuously inject the molten metal 3 o...

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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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