Injection Molding Knowledge Center

The master often encounters the vertical injection molding machine to make the product has a burr or lack of glue, and constantly adjust the machine to adjust a section of parameters and two parameters, the following from the master’s experience and the network to organize a few problems out for your reference. 1. The mold

Metal insert overmolding combines a prepared insert with a molded material. A vertical layout can provide useful loading access, but the result depends on the insert, tooling, process and handling arrangement. Define the Insert and Interface Supply the insert drawing, material, finish, tolerances, orientation and permitted preparation. Identify the molded regions, exposed surfaces and any

Silicone products are a relatively common product in our life. Compared with plastic, silicone is more stable and environmentally friendly. It is widely used in mother and child products, such as baby pacifiers, children’s toys, silicone phone cases, watch bands, oxygen masks, etc. So many friends will be curious: how to turn such a soft

Injection speed describes the forward motion used to deliver melt during filling; it is not the same as screw rotation or finished-part output. Compare the machine’s stated units and configuration before using a speed figure for selection. Keep Four Quantities Separate Forward screw speed: linear movement, commonly expressed in mm/s. Injection flow rate: volume delivered

Injection molding parameters describe different physical quantities and stages. Identify the material process, the controller’s definitions and the selected machine before comparing values. A thermoplastic cycle is not a universal recipe for LSR or other thermosets. Follow the Complete Cycle A typical thermoplastic cycle includes mold closing and clamping, filling, packing/holding as appropriate, cooling, mold

Leakage is a common fault phenomenon of the injection molding machine, mainly because of the liquid in the hydraulic components and pipeline activities when the pressure difference and the gap between the components are caused by leakage.  Other harsh working conditions will also have a particular impact on the sealing of the injection molding machine.

Updated November 3, 2026. Thermoset injection molding fills a mold with a reactive molding compound and allows it to cure into a crosslinked part. The cured material does not become a reusable melt when heated again. Polypropylene (PP) and high-density polyethylene (HDPE) are thermoplastics, not examples of thermoset molding compounds. Identify the Material Before the

The main distinction is how the material becomes a finished part. Conventional thermoplastics become processable with heat and solidify on cooling. Conventional thermosetting compounds cure into a crosslinked structure that does not simply remelt into the original molding feedstock. Material Identity Comes First Polypropylene (PP) and polyethylene are thermoplastics. Phenolic molding compounds and suitable BMC