In the casting process design and process optimization of transfer casting, the “trial and error method” is usually used to determine the new process, that is, through continuous production verification to gradually optimize the process plan. However, in each trial production process, there will be some uncertain factors interfering...
In recent years, researchers at home and abroad have made great achievements in the research of bucket tooth alloy materials. It is found that the Ni Cr Mo low-carbon low-alloy martensitic steel developed by Amsco company has good strength and toughness, especially suitable for thin, long and sharp bucket...
Process Inspection for cutting riser of sand blasting, surface cleaning, inspection for defects, repair of heat treatment, surface cleaning, inspection, correction and warehousing Drop temperature of casting For general castings, when the temperature drops to 250-450 ℃, sand can be removed. Holding time of castings under 10 tons Desanding...
Assembly of sand mold Be familiar with the casting process drawings and related documents before assembly. Check whether the sand mold and sand core are defective or partially broken. The damaged parts must be repaired carefully before use. The floating sand on the surface of mold cavity, pouring system...
Shape Preparation before modeling Check whether the pattern is complete, whether there is damage or deformation, whether the movable block is complete, whether the positioning device is loose, whether the mold lifting device is firm, if necessary, take reinforcement measures, and the shape, size, quantity and position of the...
Operation procedure: Preparation: 1) Check the condition of furnace body: check whether the furnace lining, copper tube induction coil, cooling water pipe and furnace body rotating mechanism are normal. If the furnace lining needs to be repaired, repair it first. 2) Check whether the power supply and electrical control...
This paper mainly carries out scheme design, simulation analysis and production verification of a kind of bridge bearing steel casting, and selects the casting scheme with better quality. Then through the orthogonal test of three main process parameters, the optimal combination of process parameters is determined. On this basis,...
Relying on ZHY casting, the company is a medium-sized private enterprise producing bridge bearing steel castings. The transfer casting process of bridge bearing steel casting is sodium silicate sand casting. Due to the influence of environmental protection situation, CO2 hardened sodium silicate sand process is facing the trend of...
Operation procedure: Check whether the baking furnace and temperature control meter are normal and whether the furnace bed is flat and clean. Carefully check the shell to be baked. The shell shall be complete and free of defects. The shell with defects must be repaired. Clean the sprue cup...
Operation procedure: Equipment preparation: 1) The pressure of steam generator for dewaxing shall be 0.8-1.0mpa, and the minimum pressure shall not be less than 0.6MPa 2) Carefully check whether the steam dewaxing filter screen needs to be cleaned or replaced to prevent wax running in the process of dewaxing....