Cast iron rails are suitable for a variety of applications, and the measures to prevent cratering and porosity include ensuring that the structure of the cast iron rails complies with the casting principles, setting up the gating system reasonably, forming the mold properly, and selecting the appropriate shell and molten metal pouring temperature. During the pouring process, it should be ensured that it is poured full or a thermal insulation agent is added to prevent collapse. In addition, the proper setting of the gating system, the prevention of porosity, the removal of the mold material during dewaxing, and the control of temperature and stirring during the wax sheet production process are all key process points.
When using cast iron ground rails, care should be taken to maintain the stability of the detection site and consider the influence of gravity changes. In the verification process of cast iron ground rail, especially when using 400mm 400mm cast iron ground rail, attention should be paid to the contact deformation between the plate and the support. In addition, in order to ensure the roughness requirements of the mold surface, high requirements for roughness are placed in the design of the profiling cavity, and the order in which the ingredients are added and the melting temperature are strictly controlled during the manufacturing process.
In summary, there are several process points involved in the production and testing of cast iron ground rails, which require careful operation to ensure product quality.