Castor what matters needing attention in the process of production?
- - - - - - Castor wholesale - 【 Industrial casters 】 Universal wheel, adjust the foot manufacturers 'plastic bags' is actually a kind of secondary injection molding, products generally includes main body, Hard rubber) Parts and outsourcing ( Soft rubber) Part. Hard plastic and soft plastic part can make their own different colors, respectively. The wheels of the plastic bags after beautiful and easy, and running quiet wear-resisting durable. So manufacturers in the process of making bags rubber wheels what are the considerations? First of all the different base material should choose different rubber material of package material. Such as ABS PP material can not package, ABS material can't packages in PA and so on. Now in the market of plastic bags, TPE can be divided into the following categories: PP plastic bags, ABS plastic bags, PETG plastic bags, PC plastic bags, PA plastic bags and so on. Encapsulates the wheels mould should be after polishing processing, to obtain a smooth surface or clear. In order to produce the 'matte thermoset rubber surface appearance, need a relatively rough surface of the mold. Generally speaking, cavity by electro discharge machining ( EDM) After the rough surface appearance will have a very good and makes it easier to mold release. Steam injection, sand blasting or peening grinding method and chemical etching can be used to produce with different gloss and surface appearance. To facilitate the mold release, can besmear on the cavity or core coating a layer of stripping, for example, in the after sandblasting treatment or electro discharge machining ( EDM) , and then coated with a layer of PTFE ( Ptfe) Nickel impregnation. Base material to avoid to use mold release. Base material surface to clean, try to avoid contact with dust. TPE rubber processing temperature of the measured molten rubber temperature shall prevail, rather than the display temperature of the injection molding machine shall prevail. TPE coated on the metal parts such as requirements, appropriate adhesive can be used as auxiliary. Through the above introduction to hope to be of help, if you have more questions want to consult about castor can contact our customer service, we will sincerely service for you.