Frequently Asked Questions
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Frequently Asked Questions

 

1. Why does the blanket smoke after installation?

When weaving the silica, there is a light application of FDA
lubricant sprayed to assure a tight weave.

2. Are the blankets labeled?

Yes, one of the straps on each blanket has the press number
and a blanket location.

3. Should the blanket fit tight?

No, when installing, simply feed the strap through the
buckles and snug down.

4. Should I have high temperature wire?

Yes, at least 900 degrees F.

5. Should I clean plastic and or any oil off my blanket surfaces?

Yes

6. Will my temperatures over shoot?

Yes, only for about 5 to 10 minutes. The PID controller will
automatically tune.

7. Will heat transfer from zone to zone?

No, usually each zone is preset for certain temperatures.

8. Will the blanket burn?

No, the component in the blanket will not support
combustion, unless exposed to hydraulic oil.

9. Will plastic stick to the outside of the blanket?

No, there is Teflon coating on the exterior.

10. Will plastic stick to the inside of the blanket?

Yes, the plastic will absorb into the satin weave of the
fabric. The cure, use a drool disc or a UniTherm drool
bonnet.

11. What is the touch temperature outside the blanket?

Approximately 100-120 degrees F.

12. Will the blanket conduct electricity?

No

13. Are the blankets made of asbestos?

No

14. How long will the blanket last?

Take normal care of them and they will last indefinitely.

15. Can the OEM schrod fit over a set of installed blankets?

Yes, in most cases.


16. Are the slits for thermocouples?

Yes, in most cases the width of the blanket segments fall
between the thermocouples.


17. How do we accommodate electrical junction boxes?

Typically the blanket wraps over the box, or a cutout can be
made.

18. Can we use a blanket in a clean room environment?

Yes, the blanket must fit over the schrod.

19. Do you make blankets for any application?

Yes, anywhere there is heat loss.

20. How long does it take to install a typical blanket system on an
injection-molding machine?

Less than 30 minutes.

21. How long is the typical payback?

Less than 12 months.

22. Are the plant ambient conditions cooler?

Yes, lowering plant temperatures by as much as 15 degrees.

23. Do blankets burn out heaters?

No, cycle times burn out heaters. With a blanket installed
the cycle times are reduced.

24. When I start a machine that is insulated will I come up to my pre-set
temperature faster?

Yes, about 50% faster.

25. When I shut down my insulated machine on Friday will it be warm
when I start-up Sunday night?

Yes

26. Can blankets be used in processing any type of resin?

No, blankets should not be used when injection molding
PVC.

27. Can blankets be used on an air-cooled extruder?

No

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