GRC The quality of the mold is directly related to the quality of the product. The mold with fuzzy edges and corners and inaccurate dimensions cannot be used for GRC products.
The facilities of the mold workshop need to be improved. There are working platforms, various measuring tools, aluminum alloy strips, cutting machines, cutters, etc., There are many processes and high size requirements, so the indoor space is large and the light is bright. The quality of the mold is related to the use times, product quality and installation progress.
gross Baotou GRC The product is initially shaped with gypsum, and then produced with glass fiber reinforced plastic turnover mold, such as line production. According to the section size of the product, the scraper is made of wood (laminate) or plastic plate. The hanging mouth of the scraper shall be smooth without any trace. The aluminum alloy strip shall be fixed on the platform. The mixed gypsum slurry shall be poured into the corresponding position one by one and scraped back and forth with a scraper. The force on the scraper is even back and forth, the speed is rhythmic, the hanging line is smooth, and the edges and corners are clear.
After the gypsum line is formed, it is divided and positioned according to the required size, and waxing is convenient for demoulding. Brush the prepared glass fiber reinforced plastic (resin) on the gypsum surface, brush it twice after curing, and paste the prepared glass fiber cloth. When brushing, pay attention to the timely treatment of bubbles. After curing, brush for the third time and lay glass fiber cloth until there is thickness.
Remove the cured glass fiber reinforced plastic, take out the gypsum for trimming and polishing, and a qualified GRC mold is successful. The molds with special shapes can be divided into two types: fiberglass and silicone.
1. For some special GRC shapes, the components must be divided into multiple parts in the overturning mold to facilitate multiple use. In production, it is necessary to find out the position of the dividing line. When turning the FRP mold, it is necessary to pay attention to the position of the dividing line. Otherwise, the products produced will not only affect the appearance, but also be difficult to repair.
2. Glass fiber reinforced plastic mold also has hardness, and some shapes can not be reached, so it can be replaced by silicone mold. During the use of silica gel, attention should also be paid to the timely treatment of bubbles generated. Due to the large elasticity and easy deformation of silica gel after curing, cement or glass fiber reinforced plastic and other slightly hard materials can be used as the support mold (auxiliary mold) after curing to facilitate molding.
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