Differential mechanism shell casting process
A differential housing and casting process technology, applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of inability to guarantee the shape and position accuracy of the four cross shaft holes, low machining accuracy, and wear of boring tools. Achieve the effect of solving shrinkage cavity and shrinkage defects, reducing the amount of machining and cutting, and avoiding the formation of hot spots
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[0033] The present invention will be further described in detail below in conjunction with the drawings.
[0034] Attached image 3 To attach Picture 9 , A differential case casting process, which includes the following steps:
[0035] 1. Using a core making machine, a sand core body 1 is produced. The sand core body 1 is an integrated structure with a cast hole sand column 2 for casting a cross shaft hole on the differential case;
[0036] 2. Dry the sand core body 1 described in step one;
[0037] 3. Place the sand core body 1 after drying in step 2 in the upper and lower molds of the differential housing, and then cast the molds according to the conventional casting process;
[0038] 4. Finally, the mold is opened to obtain a differential housing 4 with a cross shaft hole 6.
[0039] Preferably, the core-making machine is a core-shooting machine that uses a hot-box process to make a coated sand core.
[0040] The conventional casting method mentioned in the present invention refers t...
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