A kind of manufacturing method of multi-layer laminated metal clad steel plate

Abstract

The invention discloses a method for manufacturing a multi-layer laminated metal clad steel plate, comprising the following steps: step 1, billet selection; step 2, polishing; step 3, chamfering; step 4, cleaning; step 5, lamination; step 6, step 6, Welding; step 7, rolling; step 8, quality inspection; step 9, packaging; the invention uses low-speed, high-temperature and large-reduction rolling to roll the billet twice, which optimizes the final rolling process of the clad steel plate, thereby avoiding After rolling carbon structural steel and low-alloy steel, the clad steel plate is prone to have a large number of mixed crystal structures, which not only improves the low-temperature plasticity of the clad steel plate, but also saves the normalizing process and reduces the processing difficulty of the clad steel plate. It is beneficial to the mass production of clad steel plates. By adopting the method of stacking and welding, multiple clad steel plates of different specifications can be rolled through one slab. manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of steel production, in particular to a method for manufacturing a multi-layer laminated metal clad steel plate. Background technique [0002] Composite steel plate refers to a steel plate that is composed of a single or more than one steel material through explosion, rolling or explosion rolling and other processes. There are many types of clad steel plates, which can be divided into two categories according to their combination types, namely metal clad steel plates and non-metal clad steel plates. Metal clad steel plate is a composite of other metal cladding on the surface of the steel plate, such as stainless steel clad steel plate, titanium clad steel plate, copper clad steel plate and aluminum clad steel plate. Non-metallic clad steel plate is made of base steel plate and viscoelastic resin with excellent vibration damping performance, such as lightweight clad steel plate and vibration damping clad ste...

AI Technical Summary

Problems solved by technology

In this patent, the final rolling temperature is 900-950°C. After carbon structural steel and low-alloy steel are rolled, a large number of mixed crystal structures are likely to appear in the steel plate, resulting in low strength and toughness of the steel plate and poor low-temperature plasticity. It needs to be compensated by normalizing. It avoids increasing the processing difficulty of the clad steel plate, which is not conducive to the mass production of the clad steel plate

[0005] At the same time, the traditional clad steel plate rolling method still has the following problems: First, a single slab usually produces two clad plates with the same thickness and specifications, and it is difficult to roll multiple clad plates with different specifications through one slab. The efficiency is low, the manufacturing cost is high, and the technology is backward, which cannot meet the market demand of multi-layer composite steel plates; secondly, the cleaning of the slab before rolling is insufficient, and it is impossible to completely remove the slab surface that is often attached to the surface during transportation, storage and processing. Oily dirt affects the rolling accuracy of the slab and reduces the quality of the clad steel plate

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