Compression molding , used for compression mold, is a molding method according to the characteristics of each stage in thermosetting plastic's curing reaction. Compression molding process normally uses a hydraulic press in which a tooling is fixed on the top and bottom platens of the press. The compression mold consists of a top cavity and a bottom cavity designed to produce the product to be manufactured and heated to the desired molding temperature. What is compression molding process? Firstly, powdery, granular or fibrous plastic is put into the cavity of mold at the molding temperature, then closed the mold and pressurized to form and cure it, then the product is ejected by ejector, repairing the flash. MDC controls the flash within an ideal range through the processing technology of CNC and mold steel to reduce the waste of materials as much as possible. In addition, it can also be used for thermoplastic and rubber materials.
Comparing the compression molding with injection molding, injection molding can produce high quality products with complex structures. However, the strength of products is not enough, while compression molding allows longer fiber materials with very good strength and toughness. Compression molds are generally simpler than their injection mold counterparts. There is no sprue and runner system in a compression mold and the process itself is generally limited to simpler part geometries due to the lower flow capabilities of the starting thermosetting materials. What are the advantages of compression molding?
1. Suitable for mass production, short cycle and high efficiency;
2. The loss of raw materials is small, and the mold wear is small. MDC uses high-quality steel to improve the mold life.
3. The product has high precision, good performance, bright and clean surface, and less flash. MDC controls flash within an ideal range through CNC machining process and die steel processing process, and hardly requires additional complicated processing.
4. Advanced composite materials are used to ensure better mechanical properties of the products.
Compression molding are one of MDC's largest products, including SMC molding, BMC molding, and the design, produce, manufacture of carbon fiber molding. Compression molds can be classified as hand, used for trial runs; semiautomatic, in which the press follows a programmed cycle but the operator manually loads and unloads the press, and automatic, which operate under a fully automatic press cycle (including automatic loading and unloading). MDC thinks that for compression molding, material, shape, pressure, temperature, part thickness, cycle time must be considered. MDC has mastered and innovated the molding process, analyzed the characteristics of the materials and the requirements of the products, and considered the applied pressure, temperature, time and other factors to ensure to obtain the perfect products. The following are some of MDC's compression mold solutions: 1: Maintain pressure during cooling to avoid uneven surface. 2: Smooth surface mold with fast cooling rate can prevent the product from sticking to the mold.. 3: ...
Compression molding is widely used in industry, agriculture, transportation, electricity, chemical industry, construction, machinery and other fields. It is usually used to manufacture large flat or moderately curved parts. MDC has developed molds such as spoiler templates, fenders, bumpers, front panel on trucks, engine covers, doors, bottom fenders, car ceilings, seat backs, electric boxes and bathroom door panel basin, etc. After effective optimization, the compression mold we produce has a longer mold life and higher precision of product.
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.