Vacuum thermoforming is a secondary forming technology that uses thermoplastic sheets as the forming object. It was widely known as early as the beginning of the 20th century, but it was not until the 1940s that it was applied in industrial production, and it developed further in the 1960s. Abroad, vacuum thermoforming is an ancient forming process. Due to continuous development and changes, it has achieved a high degree of automation and mechanization, and produces no waste, with 98% of raw materials and auxiliary materials being converted into products. The entire production line is a system engineering of forming systems.

　　Thick sheet thermoforming is similar to the production method of thin sheet thermoforming packaging, which is mainly based on vacuum thermoforming. Thick sheet thermoforming means that the thickness of the raw materials used exceeds 2mm, and it cannot be thermoformed on a fully automatic machine. It needs to be processed and produced by a semi-automatic thermoforming machine specifically for thick sheets.

　　The general processing process of thick sheet thermoforming is: plastic sheet cutting, sheet fixing, heating, forming, demolding, and finishing the finished product.

　　Thick sheet thermoformed products usually have the characteristics of large area, high height, and thick material. The following materials are usually used for processing: ABS, acrylic (organic glass), PS, PC, PVC, etc. The main classifications of thick sheet thermoforming are as follows:

　　(1) Material classification: PVC thermoforming, PS thermoforming, PET thermoforming, ABS thermoforming, PP thermoforming, PC thermoforming, PE thermoforming, acrylic thermoforming, flocked thermoforming, etc.

　　(2) Industry classification: food thermoforming, medical thermoforming, electronic thermoforming, hardware thermoforming, cosmetics thermoforming, toy thermoforming, daily necessities thermoforming, etc.

　　(3) Shape classification: blister trays, blister lids, half-fold blisters, three-fold blisters, bottom-lid blisters (world box blisters), high-frequency blisters, folding blisters, etc.

　　(4) Application classification: shell thermoforming, display rack thermoforming, advertising thermoforming, base thermoforming, image board thermoforming, sports equipment thermoforming, beauty equipment thermoforming, medical equipment thermoforming, golf cart thermoforming, toy car thermoforming, boat hull thermoforming, pet tray thermoforming, turnover tray thermoforming, door thermoforming board, refrigerator inner liner thermoforming, light box thermoforming, etc.

　　(5) Title classification: thick blister, thick sheet blister, special blister, special thick blister, thick sheet blister, thick-walled blister, sheet blister, special blister, large blister, large blister.

　　With the development of society and the continuous progress and development of thermoforming technology, thick sheet thermoforming has entered various fields, such as automotive and furniture accessories, medical device accessories, toy thermoforming, equipment shells, etc. We not only expect more development, but also need more. In terms of foreign objects, it brings us convenience and brings us joy spiritually.