![]() Blow Molding Pressure Distribution:ĭo you know how the pressure distribution takes place in the Blow molding process? This is how you can get the final product in the segment C as shown in the above figure. The Cope and Drag portions of mold are to be pressed against each other and at the same time compressed air is to be passed from the air tube as shown in segment B.īy blowing high-pressure air on the soft sheet (parison), it will bend according to the internal shape of the mold and deposits on the internal surface of the mold and achieve the shape of the component.īy the cooling process, the prosuct will regain its hardness. The parison is to be passed through the mold. The parison is a tube-like piece of plastic with a hole at one end through which compressed air can pass. The feed acts as the melted plastic and it is to be passed through the extruder head section and forming it into a parison. The Feed from the Extruder is given as an input into the Blow Molding Machine. The Overview of all the parts of Molding Machine is shown in the above diagram under Segment A. Working Principle of Blow Moulding Process: Next dive into the working principle of Blow molding process. When the molten plastic enters from the parison into the mould cavity, air pressure is forced into the cavity such that the molten plastic touches the mould corners and thereafter solidification takes place.įinally the end product is obtained after the solidification. Mould cavity consists of patterns where molten plastic is to be deposited and solidification takes place and after solidification, final product is obtained. It is a Tubular shape of hot plastic with a hole at one end through which compressed air can pass. The air tube is used to pressurize the air when the molted plastic enters into the mold cavity and it is about to bulge. Melted plastic has to be sent to the extruder head so that it can be passed through various other channels. Melted plastic acts as a medium for the creation of plastic hollow components. The explanation for the parts of Blow Molding is as follows.Įxtruder is simply a machine which consists of cylinders and barrels where the plastic is to be heated up. Explanation for the Parts of Blow Moulding Process: ![]() The parts of Blow Molding process are as follows: By LaurensvanLieshout,Principle drawing of the blow mould process Parts of Blow Moulding Process: The parts of Blow Moulding Diagram are shown below. We already had an article on the Injection Moulding Process, and Compression Moulding whereas, in today's paper, we are going to discuss Blow Moulding Process along with its Parts, Working Principle, defects, Advantages, Disadvantages & Applications. It is applicable for thermoplastics only. It is also used for forming plastic containers, plastic buckets, bottles, or other hollow shapes. Blow Moulding is a manufacturing process by which hollow plastic products can be obtained. ![]()
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