Process improvement: common problems with a non-return valve

This video will go into common problems that occur with a non-return valve in the injection molding process. The key to trouble-free injection molding of thermoplastic materials with less downtime and improved quality begins before production ever starts. Choosing the appropriate equipment components, then setting up the ideal machine and process conditions, can make or break your bottom line. In the end, it's imperative for the quality of the molded part. This video will dive deep into the common challenges of a non-return valve and provide guidance on how to avoid and solve them. What does a non-return valve do? During the start of the injection phase of the cycle, the non-return valve (NRV) prevents the back flow of material. Because the material can only flow in one direction, the movement and pressure of the injection unit can now be transferred into the material and then into the mold. When the screw is in the plasticizing phase of the cycle, the NRV allows the movement of material to the front screw. If you have any specific questions about the non-return valve or if you would like to learn more about the plasticizing process, contact us through our website: https://www.engelglobal.com/en/us/inj... Write us an email: [email protected] Or give us a call: +1 (717) 714-3445 Talk to the experts! ENGEL's North American application team supports customers in all areas related to processing. This starts by evaluating the application and selecting the right machine to ensure that it's technical specifications meet the requirements. Next, we support our customers during the startup of the machine with onsite process engineers making sure that the machine runs at peak performance and is in production in the shortest time possible. In addition, we also help out solving processing problems and provide application support whenever needed. ▬ Content ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 0:00 Introduction 0:24 What does a non-return valve do? 0:53 How a non-return valve works? 2:12 What are the causes of the NRV not closing 2:50 How to tell if the non-return valve is leaking during production 3:27 How to tell if the non-return valve when press is not in production 4:25 Factors that affect the closing behavior or NRV 4:47 Some things to try to get the non-return valve to close more repeatably 6:00 Contact data for questions ▬ Find out more or contact us ▬▬▬▬▬▬▬▬▬▬▬▬ 👉 Visit our website for further information: https://www.engelglobal.com/en/at/ind... 👉 For direct inquiry contact us via [email protected] or https://www.engelglobal.com/en/at/con... ▬ About ENGEL ▬▬▬▬▬▬▬▬▬▬▬▬ Our world is about plastics, the material of the future: We are one of the global leaders in the production of injection moulding machines and their automation. The systems that leave our factories manufacture plastic parts you know from your car, use as packaging every day, and come across in toothbrushes, smartphones, toys and more. The history of ENGEL is characterised by pioneering spirit and innovative strength. In nine production plants in Europe, North America and Asia, as well as subsidiaries and representatives in over 85 countries, we work towards a common goal: The further increase of customer benefit. As technology leader, we accompany well-known customers on their way to a sustainably successful future. ▬ Social Media ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ To never miss any of our updates follow us on LinkedIn, Facebook and Instagram: ➡   / engel-global   ➡   / engelglobal   ➡   / engel_injection_moulding