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The reasons for the difference in the smoothness of die casting parts and the improvement measures, reasonable arrangement of the inner runner, the place is raised to avoid the aluminum liquid directly washing the surface with the smoothness standard; Raise the chamfer, guide the aluminum liquid to change the orientation of the filling cavity, so as to avoid the pot liquid directly washing the relative position of the mold with the smoothness specification of the casting

And effectively avoid the hot knot at the key position, reduce the bias of mold cracking. In the case that the product structure is not allowed, we can negotiate with the user to make moderate changes to the product structure or wall thickness to achieve the purpose, without affecting the assembly and product performance, and negotiate with the user to locally increase the transition Angle or process to avoid too small wall thickness and premature cracking of the mold.

Before the product is developed, CAE analysis is carried out to obtain a more moderate pouring system, which can not only get a good quality, but also avoid high pouring rate and pressurization pressure to increase the mold life. The orientation and location of the original runner make the filling process of liquid aluminum longer. After changing the orientation and place of the inner runner, the liquid aluminum filling process is shorter, the two-stage rate and the boost pressure are lower to ensure the quality of the product, and the mold is not so easy to crack. Strengthen the mold maintenance, after using the standard several times, to carry out stress removal annealing treatment on the mold.