Plastic Bottle Manufacturer - Plastic Bottle Making: What Steps?
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The use of plastic bottles has great market value. Whether it is food packaging, cosmetic packaging or medical packaging, plastic bottles are undeniable, and their use is more and more extensive. And because it has its own unique advantages, it won the initial good reputation. But do you know the process of making plastic bottles by hand? Let the plastic bottle manufacturer introduce the manual process of the plastic bottle. Molding of a plastic bottle refers to a process of making a polymer made by a synthetic resin manufacturer into a final plastic article. Processing methods (often referred to as primary processing of plastics) include compression molding (forming), extrusion (extrusion), injection molding (injection molding), blow molding (hollow molding), calendering, total: compression molding, extrusion molding Six processes, such as injection molding, blow molding, calendering and foam molding. Now let us introduce you to the specifics of these six processes. First step, compression molding Opening and closing the device rotates the screw shaft to move the mold closer to or away from the stationary mold, thereby opening and closing the mold. The fixed mold can be removed from the fixed platen in a direction intersecting the opening and closing directions of the movable mold. The machine keeps the molds parallel, accurately grips the workpiece, and improves the quality of the molded article and increases productivity. It can also be called stamping. The second step, squeeze Extrusion is to heat the plastic material to make it into a viscous flow state. Under the action of pressure, it is formed into a continuous body having a cross section similar to the shape of a mold by extrusion molding, and then cooled and molded into a glass state, which is obtained by cutting. A plastic product having a certain geometric shape and size. The third step, injection molding The molten plastic is injected into the mold of the plastic product by pressure, and is cooled and molded to obtain various plastic parts. Step 4: Blow molding The tubular plastic parison obtained by extrusion or injection molding of a thermoplastic resin is heated (or heated to a softened state) and placed in a parting mold. Immediately after the mold is closed, compressed air is introduced into the parison to blow the parison. It is inflated and adhered to the inner wall of the mold, then cooled and demolded to obtain various hollow products. Step 5: Calendering A method of forming a film or sheet by continuously heating a thermoplastic through a series of heated rolls. In the rubber processing process, the rubber may be calendered into a film of a certain thickness and width, or the pattern may be pressed against the film to mold the next product. Step 6: Foam molding The foamed material (pvc / pe, ps, etc.) is added to a suitable blowing agent to cause the plastic to have a microporous structure. Almost all thermosets and thermoplastics can be made into foam bottles. According to the cell structure, it is divided into open cell foams (which means that most of the pores are connected to each other) and closed cell foams (most of which are separated from each other), mainly by chemical foaming and physical foaming. And mechanical foaming) decided. Ningbo RUICHANG Commodity Packaging CO , Ltd. is a professional Plastic Bottle Manufacturer China, which manufactures high quality and environmentally friendly plastic bottles for cosmetics and daily necessities. View plastic bottle products, visit the consultation: https://www.ruichangpacking.com |
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