It first appeared in Europe in the early 1960s, and around 1965, the United States and Japan successively developed this craft. In the late 1980s, China introduced advanced SMC production lines and processes from abroad. Introduction to Production Inspection: SMC molding materials, SMC molded products SMC composite materials have the following advantages:
1. Environmentally friendly and green
SMC molded products are a new type of environmentally friendly material that does not contain halogens or harmful substances to the human body, meeting the needs of future green development.
2. Chemical corrosion resistance
SMC composite materials have excellent corrosion resistance to acid, dilute alkali, salt, organic solvents, seawater, etc., while metal materials are not acid resistant and prone to corrosion.
3. Lightweight and high-strength
Specific strength and specific modulus are one of the indicators for measuring the bearing capacity of materials. The specific modulus of SMC molded products is comparable to that of steel, but its specific strength can reach four times that of steel.
4. Good fire and flame retardant performance
SMC composite materials are fire-resistant and flame-retardant; The material has been tested by national institutions as a B-class non combustible material.
5. Good heat resistance
SMC molded products have the ability to maintain their physical properties even in harsh high-temperature environments, with operating temperatures ranging from minus 60 degrees to 150 degrees Celsius and thermal deformation temperatures above 280 degrees Celsius.
6. Low thermal conductivity and small coefficient of expansion
The thermal stress generated when there is a temperature difference is much smaller than that of metals, and the insulation performance is better.
7. Excellent anti-aging performance
SMC molded products have anti-aging properties. The aging resistance test shows that the surface aging thickness is less than 50 mu in 20 years; m。
8. Long service life
The usage history of SMC molded products can prove that their service life is at least 30 years or more
9. High production efficiency fiberglass molded connectors, SMC fiberglass molded connectors
After more than half a century of development, SMC molded products have been widely used, especially in the automotive, construction, electrical, marine, anti-corrosion container and other fields. Due to the excellent design and processability of SMC composite materials, as well as their high strength, dimensional precision, corrosion resistance, and good stability, they have gradually replaced metal materials and traditional plastics in some aspects, becoming the new favorite of the industry.
