Casting method of hollow crankshaft of slurry pump
A hollow crankshaft and mud pump technology, which is applied to casting molding equipment, molds, mold components, etc., can solve the problems of crankshaft eccentricity, uneven wall thickness of floating core, unreasonable riser setting, shrinkage and other problems, and achieves Improve the quality of castings, improve the qualified rate of flaw detection, and prevent the sand core from breaking or deforming
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[0057] Example
[0058] Production of F-1300 mud pump crankshaft, drawing number AH130101-02080001, a batch of 5 pieces with serial numbers 12463, 12579, 12473, 12520, 12492, inspection report number: BOMCOJ69-MT-NA055-1301, inspection result: qualified.
[0059] The same production serial number is 12384, 12476, a total of 2 pieces, flaw detection report number: BOMCOJ69-MT-NA025-1302, flaw detection result: qualified;
[0060] The production sequence number is 12557, 12537, a total of 2 pieces, the inspection report number: BOMCOJ69-MT-NA030-1302, the inspection result: qualified;
[0061] The production sequence number is 12531, 12555, a total of 2 pieces, the inspection report number: BOMCOJ69-MT-NA031-1302, the inspection result: qualified.
[0062] In the trial production process, the qualification rate of the crankshaft reached more than 98%, ensuring the quality of the key main bearing parts of the mud pump.
[0063] The hollow crankshaft produced by the method of the present inv...
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