Process and apparatus for continuous producing double-metal thin plate, thin band by atomized metal ejection

Abstract

The present invention relates to metal atomizing and spraying process and apparatus to produce thin bimetal plate or belt and belongs to the field of metallurgical technology. The present invention features that a nozzle is set over two horizontal rollers capable of being cooled with inside water and side sealing plates are set on two sides of the roller gap. The atomizing nozzle sprays high speed inert gas flow to crush liquid metal flow so as to form disperse semi-solidified metal grains sprayed to between the pre-treated base metal belt pre-stretched with one of the rollers and the other roller, and the deposited metal grains are adhered firmly onto the base metal belt at high temperature. The double roller rolling strengthens the combination between the base metal belt and the deposited metal to form excellent bimetal plate (belt). The present invention has the advantages of short technological process, compact apparatus structure, high combination strength, low power consumption, etc.

Description

1. Technical field [0001] The invention relates to a process and equipment for continuous production of bimetal thin plates and thin strips by metal atomization spraying, belonging to the field of metallurgy. 2. Background technology [0002] The composite and functionalization of metal materials is the main trend of the development of metal materials in the new century. Bimetal composite plate (strip) is a new type of metal composite material that combines two metal materials with suitable properties through temperature and pressure. It can give full play to the performance characteristics of each component according to the design requirements, and meet the requirements of modern industry for various properties of materials with its high strength, wear resistance, corrosion resistance and other mechanical, physical, chemical and other engineering properties. A single metal plate is no match for it. Bimetallic composite materials can play the role of measurement, overload ...

AI Technical Summary

Problems solved by technology

This process requires two ladle containers, and requires that the different metals contained in the two ladle containers are difficult or partially miscible in the liquid state; in addition, because the two-roll mill used for rolling deviates from the spraying position of the atomized metal, the bimetallic composite When the belt enters the roll gap of the rolling mill, the deposited metal on the back belt has experienced a long cooling time and is in a solid state. The binding force of the person is not enough and it is easy to crack

In addition, the patent does not have a side sealing mechanism between the spray and the strap, and part of the atomized metal droplets will fly to the two edges of the strap, resulting in poor edge quality and shape of the deposited layer and low metal yield. question

It can be seen that this patent has the disadvantages of uncompact structure, long cooling time of deposited metal, resulting in poor bimetallic bonding force, difficult rolling deformation, low metal yield, and poor edge quality.

Images