What should be the curing temperature controlled for fiberglass grating?
The curing temperature of fiberglass grating should be determined based on the type of resin used and specific curing requirements. Generally speaking, for polyester fiberglass, the curing temperature should be controlled at around 80 ℃ and heated for 3 hours to ensure that the resin is fully cured and achieves optimal performance. For epoxy fiberglass, the post curing temperature can be controlled within 150 ℃ to further improve the mechanical properties and durability of the product.
The difference between wet molding and dry molding
Wet forming: In a single bonding process on the mold, the bonding strength between the honeycomb and the panel is high, but the appearance quality of the product is poor, making it difficult to control the production process. Suitable for products with irregular structures such as spherical surfaces and shells.
Dry molding: The surface of the product is smooth and even, and each process can be inspected in a timely manner during the production process. The product quality is easy to ensure, but the production cycle is long.
Key points for the production of fiberglass grilles in chemical plants
Anti slip and wear-resistant treatment: When making fiberglass grating cover plates, anti slip and wear-resistant treatment will be applied, making their performance far superior to general metal, wood, and plastic cover plates.
Selection of adhesive: According to the usage conditions of the sandwich structure, epoxy resin, unsaturated polyester resin, phenolic resin, etc. can be selected. When making honeycomb adhesive strips, epoxy resin, modified phenolic resin, etc. are generally used.
Layered pasting: divided into wet and dry methods. The wet laying layer uses pre impregnated fabric as the raw material, which is heated and softened before tightly adhering to the mold; The dry laying method directly uses pre impregnated material (cloth) to cut and lay the layer according to the template.
Workplace and environment: The workplace should be clean, dry, well ventilated, and the air temperature should be maintained between 15-35 ℃. The post-processing and renovation section should be equipped with exhaust, dust removal, and water spraying devices.
In summary, the curing temperature, forming method, and manufacturing points of fiberglass grating are all key factors to ensure its quality and performance. In the production process, it is necessary to select process parameters and materials reasonably based on specific situations to ensure that the quality and performance of the product meet the requirements.
