Due to the spread of Covid-19, all countries are trying their best to find a solution to the problem. The demand for petri dishes has also begun to surge, and subsequently, the demand for injection molding machine for petri dish has also been increasing. Today, let’s explore its mysteries together!

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What is a petri dish?

Petri dish is a commonly used laboratory vessel, mainly used for microorganism or cell culture. It is composed of a flat disc-shaped bottom and a cover, and is generally made of plastic or glass. The materials of petri dishes are basically divided into two types: plastic and glass. Glass petri dishes can be used for plant material, microorganism culture, and also can be used for adherent culture of animal cells. Plastic petri dishes may be made of polyethylene materials. They are divided into disposable and multiple-use ones. They are suitable for laboratory streaking, inoculation and bacterial isolation operations, as well as the cultivation of plant materials.

What is an injection molding machine?

Injection molding machine is also known as injection machine. It is the main molding equipment for making thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molding molds. Divided into vertical, horizontal, and all-electric. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it shoot out and fill the mold cavity.

The working principle of injection molding machine for petri dish

Injection molding uses the thermophysical properties of plastics to add materials from a hopper to a barrel. The outside of the barrel is heated by a heating ring to melt the material. The barrel is equipped with a rotating drive driven by an external power motor. Screw, the material is gradually plasticized, melted and homogenized under the double action of the screw shear.

When the screw rotates, the material pushes the melted material to the head of the screw under the action of the friction force of the groove and the shear force. At the same time, the screw retreats under the reaction of the material, so that the head of the screw forms a storage space to complete the plasticization process. Then, under the inference of the injection cylinder piston, the screw passes the molten material in the storage chamber at high speed and high pressure. The nozzle is injected into the cavity of the mold. After the melt in the cavity is pressure-maintained, cooled, solidified and shaped, the petri dish mold is opened under the action of the clamping mechanism, and the shaped product is removed from the mold through the ejector device. The mold is ejected and dropped. A petri dish is complete.

By the way

When selecting an injection molding machine for petri dish , any details must be carefully considered. Be sure to take notes in advance. we are bulk customized wholesale buy high quality Injection molding machine for petri dish wholesaler, manufacturer, supplier, factory, exporter for sale, welcome to contact us.