Grinding disc, model for casting grinding disc and casting process of grinding disc
A technology for casting models and grinding discs, which is used in casting molding equipment, casting molds, and casting mold components to reduce post-processing costs and time, improve product quality, and solve shrinkage defects.
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Embodiment 1
[0036] Please refer to Figure 1, a grinding disc casting process, including the main part of the grinding disc, which is characterized in that the upper plane of the main part of the grinding disc is designed in a stepped shape, and the inner circle of the main part of the grinding disc is provided with an insulating slag ring. The outer circle of the main part of the disc is provided with an external thermal insulation overflow slag collection ring, and exhaust and slag discharge rods are evenly distributed on the thermal insulation overflow slag collection ring of the outer circle of the main part of the grinding disc.
[0037] A model for making the above-mentioned grinding disc casting process, comprising an upper sand box, an upper sand mold, a lower sand box and a lower sand mold, the upper sand mold and the lower sand mold are bonded and sealed at the parting surface of the mold, and it is characterized in that the center of the upper sand mold is opened The sprue, the s...
Embodiment 2
[0040] Please refer to figure 2 : Grinding disc molding process, using the grinding disc casting model of embodiment one to manufacture grinding discs, the grinding disc molding process is as follows:
[0041] 1) Modeling: Use a grinding disc to cast the model, and the modeling method is one of resin sand molding, sodium silicate sand molding or iron mold sand-covered molding;
[0042] 2) Smelting: melting the raw material of the grinding disc to obtain molten metal, the raw material of the grinding disc is selected from one of ductile iron, gray cast iron or alloy steel;
[0043] 3) Pouring: pour the molten metal obtained in the above step 2) into the grinding disc casting model described in 1) to obtain a grinding disc casting;
[0044] 4) Open the box and shake out the sand;
[0045] 5) Shot blasting and cleaning: Shot blasting and cleaning the grinding disc castings obtained in the above 4) to obtain grinding disc castings;
[0046] 6) Heat treatment: heat-treat the gr...
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