Preparation method of vacuum hot-pressing hastelloy-steel composite plate

The invention provides a preparation method of a vacuum hot-pressing hastelloy-steel composite plate, and belongs to the technical field of bimetal composite plate manufacturing processes. By means of the method, the metallurgical bonding rate of the Hastelloy alloy-steel composite plate can reach 100%, and the shearing strength of the plate exceeds 200 MPa; meanwhile, according to the method, the preparation process of the metal composite material is greatly shortened, the cost and the preparation difficulty are reduced, the production efficiency is improved, and the development concepts of no pollution and low material consumption are achieved. The method comprises the following main steps: S1, removing surface impurities from Hastelloy and a steel base material to be treated for later use; s2, neatly stacking the Hastelloy alloy and the surface of the steel base material under a universal testing machine, and applying a certain pressure to fix the Hastelloy alloy and the steel base material; s3, four edges