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Torch Mold is one of the most preferred plastic injection molding companies in China that manufactures a range of top-quality injection mould products for medical, technical and defence industries. Call on: +86 -755-21520959
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Selecting Between Injection Molding And Compression Molding By Charles Murse at 2016-03-25 06:29:51
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Plastic molding is practiced by many industries and used for various different products. There are many plastic molding techniques used in industry. Each type of method is suitable for a specific type of product or part. There are advantages and disadvantages of using each of the methods. Most of the time people are confused between selecting injection molding method and compression molding method. Both of these methods are used for specific types of molding. We will briefly describe both of these methods of molding here and their specific usages. Injection molding
In injection moulding plastic is heated in the heating chamber of the machine. This plastic is raw plastic that needs to be used for the product. This heated melted plastic is then pushed into the mold cavity to be filled. This plastic takes the shape of the mold and then the product is then easily prepared out of it. This method of molding is used for rapid prototyping services, toys, kitchen utensils, bottle, caps, etc. It can be easily used for mass production because of the quick product making process.
Compression molding
In the compression molding method a slug of hard plastic is pressed between two heated mold halves. In this method of molding vertical presses is used instead of horizontal presses that are used in injection molding and other molding methods. This is the difference between manufacturing processes in both the methods. Price of the products that are made with this method is moderate.
The difference between both the methods is with injection molding we can make more precise designs which is not possible to be made by compression method. Other than that compression molding is not as good as injection molding for bulk production.
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