Monthly Archives: March 2019

What is GMT MOULD?

MDC specialized in compression moulds , GMT mould is one kind of them .

so what is is GMT ?

GMT is Glass Mat Reinforced Thermoplasitcs, a kind of sheet molding compound with fiber reinforced thermoplastic. It is produced on huge laminators, using a thermoplastic resin and one or more forms of reinforcement. The process yields a lightweight, partially consolidated, semifinished composite in sheet form. Most forms are produced to 1,300 mm to 1,400 mm widths. However, some newer forms are made to greater but proprietary widths. The sheet stock may be cut to size to suit placement in the tool for a specific application and also can incorporate a decorative or functional surface laminated to one side. GMT mould makes possible the production of large parts with low tooling costs and fast cycle times via compression molding. The potential for parts consolidation presents the opportunity to further reduce weight and cost.

What’s the advantage of GMT mould parts?

Utilization of regenerated、Low forming pressure、Long storage period、Short shaping cycle、High production efficiency

What’s the mostly application of GMT mold?

GMT mold is mostly used in Automotive and building&construction, chemical industry, packaging, sport equipment, etc.

Please keep in touch with us, when any doubts on GMT Mould.

Taizhou Huangyan MDC Mould&Plastic Co.,ltd

Add: No.35-1 Qingfeng Rd, Huangyan North industrial estate, Taizhou City, ZheJiang, China, 318020

E-mail:master@zjmdc.com;https://www.zjmdc.com/SMC_mould.html

Tel:+86-576-84616076

MDC MOULD -COMPRESSION MOULD

compression mould
Molding temperature of compression mould
The molding temperature depends on the curing system of the resin paste, the thickness of the product, the production efficiency, and the complexity of the structure of the product. The molding temperature must ensure the initiation of the curing system, the smooth progress of the crosslinking reaction, and complete curing.

In general, part having a large thickness should have a lower molding temperature than a thin-walled part, which prevents excessive heat produce heat build-up inside the thick part. If the thickness of the product is 25-32 mm, the molding temperature is 135-145 °C. Thinner part can be formed at 171 °C.

The increase of the molding temperature can shorten the corresponding curing time; conversely, when the molding temperature is lowered, the corresponding curing time needs to be extended. The molding temperature should be chosen between the fastest cure speed and the optimum molding conditions. It is generally believed that the SMC molding temperature is between 120 and 155 °C.

Mold detail about the compression mould, please don’t hesitate to keep us informed as below:

T:+86-576-84616076; F:+86-576-84616079

E-mail:master@zjmdc.com;
https://zjmdc.com/Compression_Mould.html