Tag: drnick
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Thickness Control – What’s Possible in Rotomolding?
As we all know, a significant benefit offered by rotomolding is that we can achieve even wall thickness, compared to other processes. One question that rotomolders often ask me is: how much thickness control can I actually achieve, in normal practice? I pondered this question recently, while I was preparing resource materials for the ARM…
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Removing Stuck-on Debris from a Mold
Our legal counsel notes: Dr. Henwood speaks for himself and not for ARM as a whole. We encourage feedback but comments should be on technical matters raised. Dr. Henwood’s responses are solely his responsibility and not ARM’s. As part of a recent consultancy assignment, I needed to make a long run of parts in one…
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Rotomolding Styrenic Polymers – is it feasible?
ARM Technical Director, Nick Henwood, is sharing a series of articles on rotomoldable polymers other than PE, PP, and PVC. Our legal counsel notes: Dr. Henwood speaks for himself and not for ARM as a whole. We encourage feedback on this project but comments should be on technical matters raised. Dr. Henwood’s responses are solely…
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Nylon: A non-PE polymer that I can rotomold!
ARM Technical Director, Nick Henwood, is sharing a series of articles on rotomoldable polymers other than PE, PP, and PVC. Our legal counsel notes: Dr. Henwood speaks for himself and not for ARM as a whole. We encourage feedback on this project but comments should be on technical matters raised. Dr. Henwood’s responses are solely…
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Life’s just too short to rotomold polycarbonate!
In the early 2000s my company was doing some research on rotomolding polycarbonate (PC) and this was the heart-felt response of one of my technicians, who had spent nearly a month producing various scrap parts using this interesting – but very frustrating – polymer. PC is another of those materials that would be absolutely fantastic…
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Why can’t I rotomold ABS?
ARM Technical Director, Nick Henwood, is sharing a series of articles on rotomoldable polymers other than PE, PP, and PVC. If you’re looking for a polymer that’s superior to polyethylene (PE) in terms of properties, ABS (acrylonitrile butadiene styrene terpolymer) is a good candidate. It’s a very popular choice made by injection molders who want…
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Why do I have to use polyethylene for everything?
I’m sure that, at some time, you must have pondered this question. Having spent the first twenty years of my roto career selling the stuff, lots of molders have asked me that question, along with – “why can’t you guys develop something with better properties than PE?” I should immediately declare an interest: I love…