Compression moulding is a moulding method for composite materials. Usually the preheated moulding material is first placed in an open heated mould cavity. The mould uses a hydraulic press to force the material into contact with all mould areas while maintaining temperature and pressure until the moulding material is cured. The compression moulding method uses a thermosetting resin in a partial curing stage in the form of a pellet, a putty or a prepreg.
Compression moulding is a high-capacity, high-pressure method suitable for moulding complex high-strength glass fiber reinforced materials. Advanced composite thermoplastics can also be moulded using unidirectional tapes, woven fabrics, randomly oriented fiber mats, or chopped strands. The compression moulding advantage is that it can mould large, fairly complex parts. In addition, it is one of the lowest cost moulding methods compared to other methods such as transfer moulding and injection moulding. In addition, it wastes relatively little material, which has advantages when using expensive compounds. Compression moulding is also suitable for the production of very large parts. Materials for compression moulding include: polyester glass fiber resin (SMC / BMC), carbon fiber, etc.
Compression moulding is often used to make larger flat or moderately curved parts. This moulding method is widely used to make automotive parts such as covers, fenders, spoons, spoilers and smaller and more complex parts. The material to be moulded is positioned in the mould cavity, and the heated platen is closed by a hydraulic press. The bulk moulding compound (BMC) or sheet moulding compound (SMC) undergoes a curing reaction by applying pressure and heat. SMC moulding is usually cut to conform to the shape of the mould.
Thermoplastics are common in the mass production industry. For example, leading technologies in automotive applications are long fiber reinforced thermoplastics (LFT) and glass fiber mat reinforced thermoplastics (GMT).
In moulding, engineers should keep in mind six important factors:
MDC Mould&Plastic Co.,ltd is very honor to get an opportunity to develop compression mould for below sport car using LFT technology for underbody shield. Please don't hesitate to keep us informed about compression mould requirement, whatever pressing mould or foam tool. We will stay at your disposal.
Thermoforming Mould
Contact US
Email: master@zjmdc.com
Tel: +86 576 84616076
Fax: +86 576 84616079
Mobile: +86 139 0657 3032
Address: No.35-1, Qingfeng Road, North Industrial Estate, HuangYan, Zhejiang,China.