Some things you need to know about the molding process

This article will introduce you some related molding methods, main molding principles and control factors
1. Molding method
Carbon fiber is a fiber material, so the formation process of carbon fiber is the formation of fiber. The fiber forming process is a process of placing pre-mixed or impregnated fiber forming materials in metal form under a certain temperature and pressure to form a composite product.
2. The main forming principle
The inheritance and behavior of the entire thermoset is far more than that of thermoplastics. Chemical reactions always occur during the entire molding process. In the first stage, that is, at the beginning of heating, the material viscosity and low molecular weight show good fluidity. The interaction with the functional group causes some components to crosslink and the fluidity is weakened and the material produces a certain degree of elasticity. When the material is in the gel state, the cross-linking reaction of the molecules will be more complete, changing from the gel state to the glass state. Regarding the glassy material that changes from the gel state, and the resin body presents a shape structure, the molding is completed.

3. Forming factor
The controlling factors formed, commonly known as the "three factors", namely temperature, pressure and time

1) Temperature: This process variable determines the heat transfer state of the mold to the material in the cavity, and has a decisive influence on the melting, flow and solidification of the material.

2) Pressure: Close the mold to make the material more dense, promote the flow of the melt, and balance the pressure generated by the volatilization of small molecules in the mold cavity.

3) Time: also called mold time, to ensure that the cavity has enough time to complete curing.

The following is the molding flow chart: