There are many kinds of simulation carvings, and different crafts still have different micro-processing methods, so we must continue to ponder and innovate in order to produce more exquisite, more practical and more market-oriented simulation crafts, which will be used for home decoration and construction. Different fields of various industries, such as film and television, need to provide more comprehensive services.
It is also necessary to emphasize that in the process of simulating animal sculpture, it is inconvenient to bring gloves, so pay attention to the hygiene of the hands and other parts, put a towel on the side of the console, so that when the hand touches some raw materials, it should be wiped in time. And wash your hands often. At the same time, it should be noted that there are some differences between the simulation engraving and the real engraving. The weight of the general simulation crafts is lighter than the real engraving, and the texture is different. For example, real jade products are more imitation than imitation. It looks crystal clear and the temperature is lower.
1. Surface treatment of FRP prototype The surface of the prototype is polished, polished, etc. to improve the smoothness of the surface of the prototype. Only the surface of the prototype is smooth enough to ensure the smoothness of the cavity of the FRP mold.
2. Selecting and perfecting the parting surface Correctly and rationally selecting the parting surface and the position of the gate, it is strictly forbidden to have the slope of the drawing mold to avoid the mold release. The prototype is fixed with smooth wooden boards along the parting surface to separate the upper and lower molds. When applying the release agent on the prototype and parting surface, be sure to apply it evenly and thoughtfully, and apply it repeatedly for 2 to 3 times. After the previous release of the release, the agent is dried, it can be applied for the next time.
3. Applying the gel coat layer After the mold release agent is completely dried, the mold-specific gel coat is brushed twice with a brush, and the brush is evenly distributed. After the first layer is initially set, the second layer is applied. The color of the gel coat is black, and the total thickness of the gel coat layer should be controlled to about 0.6 mm.
It should be noted here that the gel coat cannot be applied too thick to prevent surface cracks and wrinkles.
4. Resin glue preparation Because the viscosity of the resin at room temperature is very high, the epoxy resin can be heated in a 60 ° C incubator for 30 min to reduce its viscosity, and then 100 parts of WSP6101 type epoxy resin and 8 to 10 parts (weight) Mix the propyl ketone (or propylene oxide butyl ether) in a clean container, stir it with an electric stirrer or hand, then add 20-25 parts of curing agent (the curing agent should be added according to the time) The temperature and the on-site temperature are appropriately increased or decreased. The mixture is rapidly stirred and vacuum defoamed for 1 to 3 minutes to remove bubbles in the resin glue.