The production process of Yuhua Stone crafts mainly includes the following steps:
Prepare Yuhua Stone: First, soak the selected Yuhua Stone in 8%-26% dilute strong acid to remove surface rust and dirt. Cut and polish some natural Yuhua Stones with irregular shapes or obvious defects, then soak them in clean water and wipe them dry for later use.
Make resin mixture: Mix unsaturated polyester resin, curing agent, and accelerator in batches to make unsaturated polyester resin solution. The weight percentage of each component is: polyester resin 98%-99.9%, curing agent 0.05%-0.9%, accelerator 0.08%-0.9%.
Make the bottom layer: Inject the mixed resin solution into the mold, and form the bottom layer of the craft after solidification. Then inject the resin solution again, and quickly implant the treated Yuhua Stone in the solution. When the solidification degree of the resin solution that immerses the rain flower stone reaches 50%-80%, the resin solution is injected again, and the injection amount should be 0.5-4 cm above the highest surface of the rain flower stone.
Solidification treatment: Put the solidified handicraft into water with a temperature of 50-100℃ for heat treatment to make it completely solidified.
Grinding and polishing: Take out the solidified handicraft and perform grinding and polishing to improve its appearance.
Base and packaging: Finally, prepare the base for the handicraft and carry out trademark packaging to complete the entire production process.
Through the above steps, the rain flower stone handicraft is completed, which not only shows the beauty of the rain flower stone, but also adds multi-level appreciation, greatly enhancing the artistic appeal.