Key Points of Maintenance of Molds

When molds for plastic injection molding are used for molding in mass production, the performance of molds decreases gradually due to wear, rust, etc. Maintenance (maintenance management) is necessary in order to repair such decreases in performance.
It is recommended to pay attention to the following points as the key points in the maintenance of molds for plastic injection molding.
1.Scratches in the pinch off surface of the core pin
2.Wear in the pinch off surface of the core pin
3.Fusing of the pinch off surface of the core pin
4.Depression in the butting surface of the core pin
5.Scratches and corrosion in the mirror finished parts
6.Peeling off of electroplating
7.Wear and deformation of the submarine gate hole
8.Wear and deformation of the pin point gate hole
9.Depression in the periphery of the parting surface
10.Wear of the ejector pin hole
11.Biting of the ejector sleeve hole
12.Soot collected in the air vent parts
13.Biting of the sliding surface of the slide core
14.Weakening of the coil springs
15.Warping and deformation f the cavity frame
16.Cracks in the corner parts of the cavity
17.Biting of the ejector guide pin and bush
18.Wear in the nozzle touching surface of the sprue bush
19.Adhesion of scale and rust in the cooling water hole
20.Water leakage in the cooling water hole