1, into the plastic mouth should be opened in the thick parts of the product to ensure the smooth and complete mold filling;
2, try to set up without affecting the appearance and function of the product, at the edge or bottom;
3, in the vicinity of the gate of the cold material hole, do the best to pull the rod set to facilitate the runner stripping;
4, large or flat products, it is recommended to use more pouring, to prevent warpage and lack of material products;
5, its location should be selected at the plastic filling process the shortest point to reduce pressure loss, is conducive to mold exhaust;
6, in the slender core near to avoid the gate, so as to avoid direct impact on the core stream, resulting in deformation or bending;
7, the size of the gate by the product size, geometry, structure and type of plastic, you can take a small size and then try to amend the status of the mold;
8, Mold flow analysis or experience can be used to determine the product line due to the position of the gate, which affects the appearance and function of the product.
9, A multi-hole, the same product using symmetrical into the pouring method, for different products in the same mold forming, the highest priority on the largest product on the main road near the location.