Scientific

100% Baozhu sand preparation process

According to the cause of mechanical sand sticking and the actual production conditions of the company, the process improvement direction is formulated to improve the structural strength of the sand core, reduce the micro pore size on the surface of the sand core and improve the cleaning capacity of...

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Gravity Casting Process of Cummins Diesel Engine

1. Core making process of cylinder water jacket The triethylamine cold core making method is adopted, and the process parameters are shown in the table. Main components of core sand: SiO2 ≥ 92%, silt content ≤ 0.35%, moisture ≤ 0.2%. The number of core sand mesh is 40/100 mesh,...

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Production inspection of ductile cast iron casting

1. Chemical composition detection The ARL3460 direct-reading spectrometer is used for chemical composition detection. The results of chemical composition detection are shown in Table 1. Value Wire feeding length/m Wire feeding speed/m · min^-1 Temperature before wire feeding/℃ Reaction time/s Pouring temperature/℃ Project 14.5±0.15 18±0.2 1 430~1 450 40~60...

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Improvement Measures of Ductile Iron Casting Process

1. Improvement of cavity arrangement process As shown in the figure, the improved ductile iron casting process changes the original strip arrangement into a star arrangement. The star arrangement is relatively concentrated, and heat sources are added to each other at the outer wall. The heat dissipation rate of...

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Test on technological parameters of sand castings

Preheat the mold with natural gas flame, then spray paint on the surface, and raise the temperature to about 300 ℃. Pour the melted ZL102 alloy liquid into the mold, take out the sand casting after solidification and forming, and check the surface quality and size of the casting....

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Analysis of casting diaphragms under venting condition

In order to cut the area with casting defects in the casting diaphragm, it is necessary to first understand the characteristics of the casting diaphragm defect area, including the size, distribution, depth, etc. of the defect area. The inspection shows that in the casting defect area of the diaphragm,...

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