There are many similarities and differences between the pultrusion molding skills of SMC FRP profiles, which are popular in the SMC FRP finished products profession, and the now mature pultrusion molding skills of plastics. Plastic molding skills are only the process of physical changes, while the molding process of SMC FRP pultrusion skills is also accompanied by dynamic chemical reactions. Therefore, the pultrusion molding skills of SMC FRP are much more complicated than that of plastic pultrusion molding. As the intersection of all technical parameters of SMC FRP pultrusion technology, the effect of SMC FRP pultrusion mold in molding is very important. It is related to the success or failure of the pultrusion technology of SMC FRP profiles and the quality of SMC FRP profiles. So the planning of SMC FRP pultrusion die is very important.
1. SMC FRP mold parting planning: as a large category of SMC FRP pultrusion molds, the parting pultrusion molds are most widely used. The parting skills enable many profile products, especially doors and windows with disordered sections, to get used to the SMC FRP pultrusion skills smoothly. Therefore, the mold parting skills can best reflect the mold planning concept, mold processing experience and mold cost control management level of the mold manufacturer. No matter whether the manufacturer of SMC FRP profiles understands it or not, the manufacturer of SMC FRP pultrusion molds always takes "simplified processing" as the primary criterion for mold parting. Secondly, the mold manufacturer will consider the habit of parting skills and pultrusion skills and the benign impact on the quality of pultrusion products. Therefore, we are advised not to trust the quotation and processing ability of the mold manufacturer verbally, but to verify their planned mold drawings, preform drawings and even fixture drawings with real tools and guns.
2. SMC FRP mold preforming planning: during the process of SMC FRP pultrusion technology, it is necessary to go through the preforming composed of a group of yarn guide and felt guide components after the reinforcement materials are impregnated with rubber liquid, and after the preforming, reach the rubber filter, the reinforcement materials are used to the profile mold cross-section equipment mode and gradually reach the shape and size of the approximate molding mold cross-section, and then enter the SMC FRP pultrusion mold, In order to achieve uniform content of cross-section reinforcement materials of finished products, full appearance of finished products and smooth continuous production. Although mold preform is regarded by many mold manufacturers as accessories and accessories of the mold and provided to customers for free, this can not kill the effect that preform planning is the soul of all mold planning. In a sense, preform determines the world outlook of the mold. The preform planning not only includes the planning concept and processing experience of the mold manufacturer, but also shows that the mold manufacturer is predictive of commodity pultrusion skills. This is also a key point for SMC FRP pultrusion profile manufacturers to verify the mold manufacturers.
3. Planning of SMC FRP mold fixtures: many SMC FRP profile commodity manufacturers have their own machine repair teams, and even the mold and equipment protection parts. However, for most profile manufacturers, this is still a bottleneck. Therefore, once they encounter some products with disordered cross-section and small wall thickness, they usually hope that the mold manufacturer will plan the clamping plan for them. These days, not all mold manufacturers have such talent. Yes, you have to trust. It's true. Most domestic mold manufacturers do not have the ability to plan and adapt fixtures. For example, the planning of SMC FRP radome and SMC FRP anode tube is not only the processing of tooling, but also the modification of SMC FRP pultrusion equipment control system. It is a messy system. However, most SMC FRP profile manufacturers do not take this into account. Except for SMC FRP pultrusion molds, they can not afford the expensive quotation of fixture products. However, you should know that this is a skill.
