Since the introduction of vacuum induction technology into China, it has been a very mature technology in China. In recent years, due to the increasingly strict requirements of environmental protection, the closed mold technology has been paid more and more attention.
The vacuum introduction process, referred to as VIP, paves reinforcement materials (glass fiber, carbon fiber, sandwich material, etc., different from the vacuum bag process) on the mold, then paves the vacuum bag, and extracts the air in the system, forming a negative pressure in the mold cavity, using the pressure generated by vacuum to press the unsaturated resin into the fiber layer through the pre laid pipeline, so that the resin soaks the reinforcement material finally Fill the whole mold, after the product solidifies, remove the vacuum bag material, and get the required products from the mold.
In the usual hand lay up process, the reinforcing material is placed in the mold and soaked by brush, roller or other means. Another improved method is to use a vacuum bag to suck out the excess resin in the lay up. With the increase of glass fiber content, the products with higher strength and lighter weight can be obtained. VIP has many advantages over traditional technology:
Advantage one: the product quality is higher. Compared with the traditional manufacturing process, there are very few bubbles in the products. There is no excess resin left in the system, and the content of glass fiber is very high, which can reach 70% or even higher. The product has lighter weight and higher strength.
The second advantage is less resin loss. With VIP process, the amount of resin can be accurately estimated. For hand paste or spray process, it will be difficult to control due to the variability of operators. VIP can minimize the loss of resin, so as to save cost.
The dominant three resins are evenly distributed and less volatile in the process. In the process of making a product, the pressure produced by different parts of vacuum is the same, so the infiltration speed and content of resin to glass fiber tend to be the same. At the same time, there is no brush or roller in the production process, which will not cause the resin splashing or dripping phenomenon, not to mention a large number of odors. It provides a clean and safe production environment for producers and an effective physical and mental health guarantee for production operators.
The fourth advantage is to save the cost and time of mould manufacturing. Only using one side mold can get smooth and flat products on both sides, which can better control the thickness of products. Effectively save the cost and time of mold manufacturing.
Xinyang 1291p-1 is an unsaturated polyester resin of o-benzene type, which has been pre promoted and has low viscosity and medium reactivity. The product has good operability, fast infiltration speed for glass fiber, high strength, good toughness and water resistance after curing. It is suitable for the production of fishing boat, yacht, bathroom and other FRP products with high requirements. It has passed CCS and ZY certification.
VIP process products have so many advantages, good technology with good products, in order to improve product quality and effectively save production costs and production time. In the future, Xinyang Technology will continue to adhere to the business philosophy of "talents first, technology first, quality first, and faith first", provide customers with high cost-effective products with excellent products and services, develop together with customers, and create more wealth for the society.
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