What is Plastic Extrusion? What Are The Types of Custom Extrusion and Molding?

by Sreka Industries Custom Plastic Extrusions Suppliers and Manufactur

Extrusion is a process where the material gets passed through a specialized shape called a die. It helps produce objects with a definite cross-sectional profile. Plastic extrusion is a mass-production process where desired additives get melted and formed in an extensive process. 

Polymer is the raw material that gets commonly used and fed into the hopper and the feed throat is dropped on a rotating screw. Screw rotation gets powered by an electric motor. Note that the design of the screw varies and depends on the design of the final product. 

How does the Custom Mouldings Extrusions process get executed? 

The rotation of the screw forces the plastic forward and passes through a heated barrel. When the plastic gets passed through the barrel, the channel or thread of the screw decreases. It, in turn, compresses the plastic. The melting temperature of the plastic is more than the verge temperature of the controllers. The custom molding extrusion process produces additional heat through a combination of shear friction and compressive force. 

What are the different types of custom molding extrusion means?

Depending on the shape of the die, different materials get formed using a plastic Custom Mouldings Extrusions process. In general, there are three types of plastic extrusion methods. It is as follows. 

Tube extrusion

 The plastic molding and extrusion process gets followed for pipes and tubes. In this process, air with positive internal pressure gets applied. Plastic containers and pipes after exiting the machine get pulled into the cooling tank. It is where the pipe or tube gets water-cooled. 

Blow film extrusion process

This kind of Custom molding and extrusion get applied to plastic films of tubes using extensive sheeting. The molten plastic package designs a semi-solid tube before leaving the die. It gets blown to produce the plastic to its desired thickness or expanded size. It's how plastic shopping bags and other items get dropped.

Plastic Sheet Extrusion

This method of plastic Custom Mouldings Extrusions process gets followed for plastic sheets. It is ideal for items that are too thick to be blown. As it exits the die, plastic rolls get cooled and pulled to a series of cooling poles. It also regulates the thickness of the plastic sheet. 

Over Jacket extrusion

This type of plastic extrusion and moulding process gets followed by wire coating. In over Jacket extrusion, the wire gets pulled through the center of the die. If it requires an adhesive between the coating and the wire, it requires a pressure tool.

What are the services offered by our firm? 

We are a global plastic extruder and provide plastic extrusion and finishing. 

Profile plastic extrusion: It produces custom sizes and shapes to meet the requirement of a wide range of applications and industries.

Custom tube extrusion:  It profiles custom tubes Varieties of the consumer and industrial application. 

Co-extrusion process: It combines two or more resins that meet exact performance requirements. 

For quotes on Custom Mouldings and Extrusions, contact us today. 

Sponsor Ads

• Ad Space Available - Rent it Now!

Created on Oct 26th 2021 05:30. Viewed 276 times.

Comments