The molding quality of plastic products is generally related to the mold, plastic, plastic machine operating technicians and injection molding machine.

First of all, the main steel material of your mold must be appropriately selected, the mold structure must be reasonable, and the gates must be correct. The selection of steel is related to the mold life and the surface polishing performance of the product; the reasonable mold structure is related to the molding quality and maintainability of the product; the reasonable gate is related to the surface quality of product injection molding and the optimization of product injection molding.

Secondly, plastic performance has a lot to do with product molding. I wonder what material your petri dish is made of?

Thirdly, the adjustment level of the injection molding machine operating technician is very important. As long as there are no problems with the mold, the quality of the general product is related to him.

Finally, let’s talk about injection molding machines. In fact, among domestic injection molding machine manufacturers, many small and medium-sized plastic machine companies purchase parts, assemble them themselves, and then sell them under their own trademarks. If the plastic machine is selected for large-scale professional production, it should use a special screw, a good servo control system, and a plastic machine with a recent production date. If it comes to brands, domestic Haitian Plastic Machinery, Taiwan's Fu Qiangxin, etc. can be used. Just consider the price of imported and fully electric ones.

Or you’d better consult a professional