Injection molding machine and petri dish must be not strange for everyone. We know that injection molding machine are specialized in making plastic things, almost anything about plastic material, like plastic chair  and  indoor thermometer . And there are plastic petri dish and glass petri dish according to the material, we will focused on the injection machine for plastic petri dish.

What is petri dish?

Petri dish was originally designed in 1887 by the microbiologist Julius Richard Petri (1852-1921) who worked for the German biologist Robert He. , thus, it is called “petri dish”. Petri dish is a kind of laboratory utensils used for microorganism or cell phone holder culture. It consists of a flat disc-shaped bottom and a lid. There are plastic petri dish and glass petri dish according to the material. Glass one can be used for plant materials, microbial culture and adherent culture of animal cells. The plastic may be made of polyethylene, isomeric alcohol ethoxylates and there are disposable and multiple-use ones, which are suitable for laboratory inoculation, streaking, and bacterial isolation operations, and can be used for the cultivation of plant materials. There are more types of petri dish according to different purposes of the experiment like quartz petri dish and sell petri dish.

Working principles of injection molding machine

The working principle of the injection molding tool is similar to that of the syringe for injection. It is the process of injecting the plasticized molten plastic (i.e. viscous flow) into the closed mold cavity with the help of the thrust of the screw (or plunger), and obtaining the product after curing and shaping. Injection molding is a cycle process, each cycle mainly includes: quantitative feeding - melting and plasticization - pressure injection - mold filling and cooling - mold opening and taking parts. After taking out the plastic part, close the mold again for the next cycle.

The evaluation of plastic products mainly includes three aspects. The first is the appearance quality, including integrity, color, luster and so on. The second is the accuracy between size and relative position. The third is the physical, chemical and electrical properties corresponding to the application. These quality requirements are different according to the different application occasions of products, and the required scales are also different. The defects of products mainly lie in mold design, manufacturing accuracy and wear degree. But in fact, the technicians of plastic processing plants often suffer from the difficult situation of using technological means to make up for the problems caused by mold defects.

How to produce good quality plastic ?

The molding quality of plastic products is generally related to molds, plastics, plastic machine operation technicians and injection molding machines.

First of all, the steel of the main body of your mold is properly selected, the mold structure is reasonable, and the pouring gate is correct. The correct selection of steel is related to the service life of the die and the surface polishing performance of the product. Reasonable mold structure is related to the molding quality and maintainability of products. The sound poring gate is related to the surface quality of product injection molding and the optimization of product injection molding. Then, the plastic performance is very important. It’s better to choose the injection molding machine according to the performance of your plastic. Thirdly, the adjustment technique level of injection molding machine operators is very important. As long as there is no problem with the mold, the product quality is related to operators’ technique generally. Finally, for injection molding machines, in fact, many domestic small and medium-sized plastic machine enterprises purchase accessories, and just assemble them by themselves. Many industries also just foundaries, like modular UPS exporter and phone power bank factor  .And put their own logo on the machine to sell.  Ningbo Lisong Injection Molding Technology Co., Ltd is a reliable supplier.

In summary

Injection molding machine for petri dish is only a small application of the machine,there are many things can be made by it such as plastic sprayer. Injection modling technology is a great invention for plastic products. Any interest, welcome to contact Ningbo Lisong Injection Molding Technology Co., Ltd.