When it comes to the application of blow molding, three things must be in place to ensure quality finished products. First, the machine itself must be cutting edge. Second, the operator must have the proper qualifications for running the machine. Third, quality management must oversee the entire process. Of the three, quality management in extrusion blow molding is the most critical.
The term “flash” in extrusion blow molding refers to the excess plastic material that remains on the body of a new container after the container has been formed. Though flash is a side-product of the extrusion blow molding process, it can have negative effects to blow molding efficiency as well as to the plastic part or container if not properly controlled.
If you operate a business that has a requirement for specially formed plastic bottles or containers, such as for juice and water bottles or liquid soaps and shampoos, it’s to your benefit to understand the various manufacturing processes for making those bottles and containers. What follows is an explanation of the extrusion blow-molding process and how it differs from injection molding.
Product manufacturers that are familiar with blow molding manufacturing processes understand the many benefits and applications of blow molding. But for those who aren’t aware of how to make the best of the blow molding process or capitalize on the methods, the following information will be of value.
Of the many different machines used for manufacturing products, the blow molding machine is one of the most fascinating and useful. Known as extrusion blow molding, the simple explanation as to how this blow mold design works is that air is blown into a parison, shaping the hollow bottle as it inflates. However, there is much more to the plastic extrusion blow molding process.
Blow molding machinery is used to create hollow containers or parts made from plastic. In addition to overseeing operations during this process, the operator is responsible for keeping extrusion blow molding machines in optimal condition. As part of this, the machinery must be purged. This consists of cleaning the interior portion of the machine, which primarily focuses on ridding it of plastic residue.
There are a tremendous number of benefits associated with extrusion blow molding (EBM) for the manufacturing of plastic products.
- Injection Blow Molding (IBM)
- Extrusion Blow Molding (EBM)
- Injection Stretch Blow Molding (ISBM)
- Reheat Stretch Blow Molding (RHSB)
These terms are used on a daily basis in the plastic blow molding machine business. They can be very confusing to blow molding machinery users.