Manufacturing method of compound steel

Abstract

The invention provides a manufacturing method of compound steel, which comprises the following steps: leveling a steel plate and matrix steel, removing an oxide layer on the binding surface of the required steel plate and the matrix steel, and decontaminating so that the binding surface is smooth and flat; superposing the steel plate and the matrix steel, wherein the contact area of the binding surface of the required steel plate and the matrix steel reaches 100%, and no air exists on the binding surface; welding and fixing the transverse seams of the binding surface to obtain a blank; and heating the blank to 950-1000 DEG C in a furnace for 20-30 minutes so that the temperatures inside and outside the blank are uniform, rolling in a hot-rolling mill, and carrying out stress relief annealing by a conventional method, thereby obtaining the compound steel of the invention. The invention has the advantages of simple manufacturing technique, is easy to realize the industrial production and high yield, and enables the yield of compound steel to reach 100% due to the realization of non-oxidation manufacture in the compounding process.

Description

technical field

[0001] The invention relates to a method for manufacturing composite steel, which belongs to the field of metal material manufacturing. Background technique

[0002] Due to its good wear resistance, tensile properties, hardness, toughness and other advantages, clad steel is applied to various fields of industry and civil use, such as: construction, chemical machinery, storage and transportation, electric power, etc. At present, domestic manufacturing of clad steel is roughly Divided into: traditional forging method, explosive forming method and casting compound method. The traditional forging method is to heat the two steels to a certain temperature, forge them with a pressure hammer to make them one, and then roll them. In this method, because the temperature of the two steels and the forging time and times of the pressure hammer are not easy to grasp, the two steels contain air and a lot of ash, and secondary heating is required during rolling, which is ea...