Light-weight crankcase body casting pouring system and casting process thereof
A crankcase and gating system technology, applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of easy generation of shrinkage holes or shrinkage porosity, improve sand sticking and shrinkage, reduce shrinkage hole defects, and reduce shrinkage holes. high similarity effect
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[0022] Such as figure 1 As shown, a lightweight crankcase casting gating system includes a sprue 1, a runner 2, a sprue 3, a runner 4, a riser 5 and an inner runner 6, and the sprue The channel 1 is connected with the runner 2, the runner 2 is connected with the sprue 3, the sprue 3 is connected with the runner 4, and the runner The top of 4 is connected with a riser 5, and the bottom of the sub-runner 4 is connected with an inrunner 6, and the inrunner 6 is connected with the casting 7, and vertical casting is adopted, and the upper end of the bearing of the casting 7 is provided with a riser. The mouth 5 is fed, and the riser 5 and the inner runner 6 are fed with molten iron for pouring.
[0023] In this embodiment, the main body tensile strength of the casting 7 is greater than 420 MPa. A riser 5 is provided on the end face of the bearing of the casting 7, and the bottom of the riser 5 communicates with the ingate 6, so that the molten iron in the riser 5 is sufficient, a...
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