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Tech Tip Febuary 1996

What Nozzle is that:


In doing trouble shooting etc. on my travels around the West, I constantly come across the fact that the nozzle on the machine may be too small, big or the wrong type for the job. If you have had the opportunity to attend one of our seminars, you may have heard the comments that the nozzles aren't numbered or to number the nozzles.

Why number the nozzles? What this would allow you to do is setup a job quicker and have control on the process a bit better, since you now have identified specifically what nozzle should be used. This would then allow you to use a #4 nozzle on mold #23. The #4 nozzle might be a .150" 'O' diameter and of the nylon type with 1/2" radius and 4" in length. You could have two or three #4 nozzles.

You would need to create a master list with the specifications for the nozzles. This master list could be maintained on the wall, telling what the '0' measurement is, the type-straight, nylon, etc., length and radius type. Now on the setup sheet you have a section listing what nozzle number is to be used. And when you go to set the tool up, the correct nozzle should be used. This can speed up the setup and help in eliminating the headache of having too large or small a nozzle on the job. Yes, you may have to have a few nozzles that are the same number, but at least they are physically the same.

Think about it and decide whether it could help your operation in the setup.



Thanks for the time.

Steven L Silvey
Sr. Technical Service
General Polymers