Production method of titanium steel composite board for calendering composite pot tool

Abstract

The invention discloses a manufacturing method of a calendered complex titanium clad steel plate used in a pan. The method comprises the following steps: taking two low carbon steel plates which have a carbon content lower than 0.15% and are 8-12mm thick and two titanium plates which are 2-3mm thick; polishing one surface of the steel plates and the titanium plates, and superposing the steel plates and the titanium plates by arranging the polished surfaces face to face in a four-layer order of steel-titanium-titanium-steel; sealing peripheral gaps between each two plates by fusing while pressfitting; heating clad billet plates to the temperature of 850-920 DEG C; calendering and cladding by a hot roll to cause a deformation rate not smaller than 65%, and then diffusion annealing at the temperature of 750 DEG C to remove oxide layers on the surfaces; cold rolling and calendering at the deformation rate not greater than 10%, and then relieving stress at the temperature of 650 DEG C; separating the four-layer superposed plates to obtain two calendered complex titanium clad steel plates used in the pan. The method helps manufacture the titanium clad steel plate by heating and calendaring the low carbon steel and the titanium which are produced at high temperature and have low brittleness; atoms on a titanium-steel interface are diffused with each other at the eutectic temperature to realize metallurgical bonding; the steel plates of the titanium clad steel plate are closely clad by the titanium plates of the titanium clad steel plate; the bonding strength of the titanium and the steel is high, thus the titanium clad steel plate is an ideal complex plate for the pan.

Description

technical field [0001] The invention relates to a method for manufacturing a composite plate, in particular to a method for manufacturing a titanium steel composite plate for pots. Background technique [0002] The pot is a utensil for cooking food. When the pot is in use, the bottom surface of the pot contacts a high-temperature stove, and the inside of the pot contacts food. Pots are made of metal materials, most of which are made of metal plates. Metal materials for pots require high strength, good rigidity, good thermal conductivity, high temperature resistance, corrosion resistance, beautiful appearance, and will not affect human health when used. Some substances have good magnetic conductivity. The current pots are made of a single material such as cast iron, steel, aluminum, stainless steel, etc. These materials have different physical and chemical properties, and the performance of the pots made of them is quite different. The main performance differences are in the...

AI Technical Summary

Problems solved by technology

The thickness of the plate required for the pot is small, generally about 1.5mm. Due to the high price of titanium, the titanium plate layer of the titanium steel composite plate used for making the pot should be as thin as possible, generally about 0.2mm, and the composite plate is made by a rolling mill. After the plate is rolled to the thickness required by the pot, there will be steel exposure points on the titanium plate layer at the larger corrugations on the joint surface, so that the titanium plate will not cover the steel plate tightly, and the bonding strength of titanium steel is low, and it is easy to produce a joint surface separate