Methods for processing metal composite plates or belt material

Abstract

A technology for preparing composite metal plate or band includes treating the surfaces of substrate plate and surface plate, making a through binding slot on the surface of substrate plate at one end part, making an embedded boss on the surface of surface plate at one end part, embedding said boss in said slot, clamping them at another end, and rolling. Its advantages are high stability and high utilization rate of raw material.

Description

Technical field: [0001] The invention relates to a processing method for metal composite plates or strips, in particular to a processing method for large-area metal composite plates or strips. Background technique: [0002] The process methods for processing metal composite plates or strips in a large area include explosive welding method, hot rolling method and explosive welding-hot rolling method. Each of these methods has its advantages and disadvantages. Although the explosive welding method or the explosive welding-hot rolling method has high welding quality, there are problems in welding large blanks such as safety, environmental protection, site, transportation, etc., and the thickness of the clad plate to be covered is limited. The traditional hot rolling method adopts the symmetrical superimposed rolling method first proposed by the American Rukens Steel Company, such as figure 1 As shown, the figure is taken from the reference: "Metal Matrix Composite Materials",...

AI Technical Summary

Problems solved by technology

The following problems exist in this processing method: when welding dissimilar metals with large differences in thermal expansion coefficient, the middle cladding plate has space for expansion and contraction by the support block at the edge, so the welding requirements on the edge are very strict; for High-strength metal composites, such as stainless steel and carbon steel composites, require a large amount of deformation, so the power of the rolling mill is required; first, a special substrate blank must be prepared, and then the assembly process with a large workload. After rolling, two parts need to be cut off. The edge material with wide sides needs to be divided into coils at the end, and the completed one-side cladding is completed; it must be ensured that the weld does not swell and crack during rolling in the rolling mill, especially during the first pass, otherwise the vacuum will destroy the air and enter the metal cladding quality. severely affected

Therefore, this processing method has very high requirements on the selection of substrate blanks, welding quality, assembly process and rolling mill. It is difficult to ensure stable multi-pass rolling with conventional rolling mills, which will easily lead to the quality of composite plates and strips. Unstable, low yield, especially when large-thickness slabs roll metal composite strips, the problem is more prominent

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