Introduction to plastic buttons

June 23, 2018 BY TRIMS CO.,LIMITED Buttons Knowledge

Plastic Buttons are a very common type of button on the market.Plastic materials are roughly: ABS, PP, AS, polycarbonate, acrylic and so on. The main material of Plastic Printing Buttons is ABS resin. ABS resin is a copolymer of three monomers: acrylonitrile, butadiene, and styrene. The most common ratio of these three monomers is 20:30:50. At this time, the melting point of ABS resin is 175 ° C.

Due to its three components, ABS resin has good properties: acrylonitrile makes it chemically stable, oil resistant, certain rigidity and hardness; butadiene improves its toughness, impact resistance and cold resistance Styrene makes it have good dielectric properties and gloss, and presents good processing characteristics. The surface of ABS resin products can be polished to obtain highly glossy products.

Plastic buttons are formed by injection molding. Injection molding processing methods are commonly used in the production of thermoplastic products. This process can be used from daily necessities (such as Plastic snap button tapes) to all kinds of complex machinery, electrical appliances, and transportation parts. He is the most widely used processing method in the production of plastic products.

Advantages of injection molding:

1. Conducive to shortening the molding cycle.

2. A set of molds can produce large quantities of injection molded products.

3. The labor required is relatively low.

4. The production process is easy to achieve automation and program control.

5. High production efficiency, two sets of molds can contain dozens or even hundreds of cavities, so it can complete the molding of dozens or even hundreds of plastic parts at one time.

Disadvantages of injection molding:

1. The mold design, manufacturing and test cycle takes longer and production is slower.

2. Due to the limitation of cooling conditions, it is difficult to form plastic parts with large wall thickness and large changes.

3. The start-up investment is large, so it is not suitable for the production of small batches of plastic parts.

4. The quality of molded products is limited by many factors, so it has high technical requirements and is difficult to master.

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