Equipment for manufacturing stainless steel clad plates by low temperature induction heating

Abstract

Equipment for manufacturing stainless steel clad plates by low temperature induction heating is used for carrying out medium frequency induction heating and welding on the composite materials before continuous rolling and forming. The equipment is characterized in that a medium frequency power supply heating control system is connected with induction heaters by a medium frequency capacitance compensator and the medium frequency alternating current power generated by the medium frequency power supply heating control system is input to the medium frequency capacitance compensator and the induction heaters to form resonance; heavy alternating current is generated on the induction heaters; a surface layer and base metal are heated through eddy effect; and a bonding layer receives the heat from the surface layer and the base metal and is melted; and then the surface layer, the base metal and the bonding layer are fit under inert atmosphere and enter into a rolling mill to be rolled into the clad plates. The equipment has the following advantages: the equipment utilizes the induction heating technology to carry out continuous contactless heating on large format metal, thus ensuring high temperature control precision, low working temperature and low unit energy consumption and effectively saving energy; the thermodetector and the medium frequency power supply heating control system ensure the heating temperature of the metal layer to be constant, thus ensuring the surface of the metal layer to be uniformly heated; and the inert gas protection cavity structure can avoid surface oxidation of the metal layer in the heating process, thus greatly lowering the production cost.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to equipment for performing medium-frequency induction heating and welding on composite materials before continuous rolling and forming of stainless steel composite steel plates. Background technique [0002] Stainless steel clad steel plate is a kind of bimetallic high-efficiency energy-saving material that uses carbon steel as the matrix and continuously covers 0.1-20MM stainless steel on one or both sides. abrasiveness, anti-magnetic, luxurious and decorative, and has good weldability, formability, drawability and thermal conductivity of carbon steel; at the same time, because it can save nickel-chromium alloys, reduce costs, and low price, its anti-wear, Anti-rust, anti-corrosion, surface finish and cost performance are all excellent, so it is widely used in various fields such as petroleum, decoration, chemical industry, salt production, alkali production, etc. It can replac...

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Problems solved by technology

[0003] Stainless steel composite steel plate is an indispensable steel product in the development of my country's national economy. Its application prospects are very broad. far from meeting the requirements

[0004] Among the two common processes for manufacturing stainless steel clad steel plates, the explosive composite processing method is generally suitable for materials with a thickness of more than 10mm, and the cost is high, and the process has defects of high risk and high noise; while the rolling composite processing method is suitable for relatively Thin material, low cost, safe, stable and easy-to-control process

However, the starting temperature of the hot rolling process is above 1000 degrees, the equipment is huge, the energy consumption is high, and the working environment is poor

In the common brazing rolling of cold rolling, a solder sprayer is required, and the heating of the base material and the surface material adopts the traditional external heating method, which has a complex structure, a large footprint, and high production costs.

[0005] In the rolling method (brazed rolling, hot rolling method), there are no domestic reports on the production of stainless steel clad plates by the medium frequency induction heating method.

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