Compression molding vendor companies critically reviewed, evaluated.

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You’re sourcing the best compression molding services company to do your latest product supply chain requirements. Sourcing for new companies is always a challenge—both in terms of the time spent and lost money involved if the manufacturing company doesn’t perform well. Assessing if a company can do your work technically well, on time and on price, means there must be way for you to preview their performance. You need virtual hindsight. The compression molding vendor reviews featured on our site will give you such a preview. The reviews presented below are written by real customers of the companies. So you can trust them to honest and insightful. The reviews and ratings come directly from their experience with the vendor through an entire job cycle. This gives you the ability to see, in advance, how the company will perform for you. The reviews include a star rating system and other useful measurement tools alongside written opinions. Be empowered in your business to business manufacturer sourcing strategy.

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Compression molding is one of the lowest cost molding techniques. It is much cheaper when compared to injection molding and transfer molding. The savings come from multiple factors including the cost of the initial mold, molding machine and minimal material waste. The cost savings comes at the price of consistency and lots of flash. Large, intricate parts are able to be made using this technique. Compression molding is commonly used on large parts which can not be extruded which is common in the automotive industry. . 

Compression molding is used to make parts out of thermosetting materials. As the name suggests, the process entails compressing materials between the parts of the mold in order to make the part. First an open mold is heated. Material, usual a heated preform, granules or putty, is placed in to the cavity. The mold is closed under high pressure to force the material to take on the shape of the mold. The material is then cured while maintaining the heat and pressure. Once the product has cured, the mold is opened and the part removed. 

To get the best results at the lowest cost the following need to be calculated and determined:

• Heating technique of the material
• Time required to heat the material
• Temperature to heat the material
• Amount of material to put in the mold
• Force required
• Best way to rapidly cool the mold

 

Materials Used in Compression Molding

Polyester	Polyimide (PI)	Polyphenylene Sulfide (PPS)
Fiber Reinforced Plastics	Polyetheretherketone ( PEEK)	Polyamide-imide (PAI)
Sheet Molding Compound (SMC)	Bulk Molding Compound (BMC)	Torlon

 

 

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