Borke Mold Specialists: Shaping the Future – Insight into the World of Compression Molding

Taking a deep dive into the realm of compression molding unveils the intricacies of this molding process. In their insightful article titled “Compression Molding,” the exploration sheds light on the machines, actions, and diverse applications associated with this versatile technique.

Machine Insights: The Heart of Compression Molding

Commonly referred to as compression presses, CM machines play a pivotal role in the compression molding process. These machines, predominantly hydraulic or occasionally pneumatic, feature either a straight lockup system or a toggle lockup system. The presses can be either down-acting or up-acting, with down-acting types employed for fully automatic compression presses, ensuring precise alignment with material feeders and molded product stripper tables.

Actions in Molds: Precision in Every Detail

Compression molding involves a range of actions within molds to achieve the desired results. Ejector pins are employed to remove molded parts from cavities, while side actions become necessary for parts with undercuts. Additional actions, such as unscrewing threaded parts or incorporating inserts, contribute to the versatility of the compression molding process.

Diversity in Presses: Tailoring to Varied Requirements

Highlighting the diversity in compression molding presses emphasizes their availability in all sizes to meet specific requirements. These differences include varying curing cycle times, part sizes, and required pressures (clamp tonnages). The presses range from smaller capacities to thousands of tons, featuring platens of different dimensions. Some presses boast multiple platens, allowing for the simultaneous molding of flat sheets or other products. Shuttle molds and rotating individual presses further enhance the molding process, facilitating ease of incorporating inserts.

Stamping Compression Molding Presses: A Specialized Approach

Discussing the use of stamping compression molding presses, the article highlights the materials employed, such as TS sheet molding compounds (SMCs) and stampable reinforced thermoplastic sheet (STX) material. The latter is a registered tradename and typically comprises glass fiber-thermoplastic RTP.

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