Furan resin sand is used for molding, and the 24h strength of sand mold (core) is controlled σ b≥1.0 MPa； The rigidity of the sand box used for molding should be good, and the sand consumption of the mold should be large enough to ensure the overall rigidity of...
The dual liquid bimetallic lining plate is a technology for preparing new composite wet wear resistant metal materials by using special forming process, which involves such links as composite material design, steel refining, digital model construction and numerical simulation of composite casting forming process, timing and quantitative pouring process,...
The defects of traditional casting composite interface are avoided in principle. Solve the following problems: 1). Ordinary white cast iron, nickel hard cast iron and high chromium cast iron are three generations of white cast iron that have been successively inherited and developed. Compared with ordinary cast iron, high...
The research object is high chromium cast iron carbon steel bimetallic wear-resistant liner. Its quality mainly depends on whether the two layers of metal can be effectively combined. The interface bonding strength and interface structure determine the macro properties of the material. In order to obtain a high-quality composite...
The bimetallic jaw wear-resistant castings were successfully poured by using bimetallic liquid pouring / transformation molding technology. The composite casting method includes two process steps of “changing the upper mold” and “bimetallic liquid pouring”. The process takes the pouring mode of high chromium cast iron and then low carbon...
The figure is the schematic diagram of horizontal pouring bimetallic composite wear-resistant casting. Horizontal pouring refers to the horizontal position modeling of the mold, closing the box and pouring. The working surface of the composite wear-resistant casting adopts wear-resistant cast iron and the non working surface adopts high-quality carbon...
Qi Jiyu found that the material, derusting method, thickness and metal liquid temperature of the diaphragm may affect the bonding quality of the composite layer. When the separator is treated by pickling and drying, the high chromium cast iron and carbon steel on both sides of the separator have...
The intermediate diaphragm / horizontal vertical pouring refers to that the mold is molded at the horizontal position, the cavity turnover is used for vertical pouring during pouring, and the intermediate diaphragm is inserted at the joint of the two liquid metals, as shown in the figure is the...
The physical and mechanical properties of bimetallic composites are different. Although the two metals maintain their original characteristics, their comprehensive physical, chemical and mechanical properties are much superior to those of a single metal. With appropriate metal materials and composite molding process, the service performance of metal materials can...
In order to improve the toughness and wear resistance of Hypoeutectic, eutectic or hypereutectic high chromium cast iron, scholars at home and abroad have done a lot of research work on carbide refinement and toughness improvement of high chromium cast iron. For example, in view of the fact that...