Film Covered Iron Preheating Equipment Unit-1

Hunan Qijiexin Electronic Technology Co., Ltd. - Film coated iron preheating equipment unit

Film coating processing does not use adhesives or solvents, so it does not contain formaldehyde. Moreover, plastic films can be beautified, decorated, and treated to prevent pollution, ensuring human health while also playing an environmentally friendly role. The laminated steel, commonly known as laminated steel, used in the canning industry, is made by laminating PET, PC, PE or PP films with metal sheets (galvanized sheet, cold-rolled sheet, aluminum sheet, stainless steel sheet). Traditional metal cans must undergo coating processing on the inside, and the substances contained in the coating method can have harmful effects on both the human body and the environment, especially edible cans. The current treatment method is to use resin coating on the inner wall of the can. However, the coatings used in this painting process contain harmful substances to the environment - Bisphenol A, which is a recognized substance that is harmful to the environment and may cause leaching problems. Once the leaching exceeds the standard, it will have adverse effects on the human body. And the serious consequences caused by this problem have attracted attention both domestically and internationally. The birth of metal plate coating technology is a great progress in the production of metal cans. With its widespread application, traditional metal can production processes and technologies will be overturned, and productivity, production costs, cleanliness and hygiene, environmental protection, and other aspects will also make great strides forward. Production process of laminated iron

The production of laminated iron adopts a composite process of high temperature, high pressure, and rapid cooling. The production line of coated iron mainly consists of the uncoiling part of chrome plated iron, welding and iron appearance quality inspection, substrate heating, coating unit, cooling unit, product inspection, and oil coating and coiling. The core parts are the heating area of the substrate and the coating unit. Preheat the steel strip to a temperature above the melting point of the film through electromagnetic induction heating rollers, and use two symmetrical pressure rollers to extrude the substrate and film for hot melt bonding. The hot pressed steel strip is rapidly cooled by a cooling device to ensure that the melted polymer quickly recrystallizes.