Selection of commonly used mold steel: 45 #, 40Cr, P20, 2738, 2316, 718, 718H, NAK80, S136, etc. Generally, P20 material is used, and the insert can use 718.
Selection of mold steel commonly used in strawberry basket molds: 45 #, 40Cr, P20, 2738, 2316, 718, 718H, NAK80, S136, etc. Generally, P20 material is used, and the insert can use 718. This can make the appearance of the product reach a certain finish, and the mold life is relatively long. If you want more assurance of mold quality, you can choose NAK80.
Mold cooling system planning: The planning of the cooling system is a relatively complicated task, that is, the cooling effect and the uniformity of cooling must be considered, and the influence of the cooling system on the overall structure of the mold must be considered. The specific location and size of the cooling system must be confirmed; Important parts such as cooling of moving molds or inserts; cooling of side sliders and side cores; planning of cooling components and selection of cooling standard components. The mold uses circulating water to flow in every part of the mold, reducing the cooling time during injection, improving the production efficiency of the product, and greatly reducing the production cost.
Mold maintenance: Mold maintenance is more important than mold repair. The more times a mold is repaired, the shorter its lifetime. The better the mold is maintained, the longer its lifetime will be.
1. Daily maintenance of the mold: refueling of various moving parts such as the ejector pin, row position, guide post, and guide sleeve, cleaning of the mold surface, and clearing of water, which are maintained every day when the mold is produced.
2. Scheduled maintenance: Scheduled maintenance includes cleaning the exhaust tank in addition to daily maintenance, trapped air and black level plus exhaust, and correction of damage and wear parts.
3． Appearance maintenance: the outside of the mold is painted with paint to avoid rust. When the mold is lowered, the fixed mold moving mold should be coated with rust-proof oil. When the mold is stored, it should be closed tightly to prevent dust from entering the cavity.