Glossary entry

German term or phrase:

Kaltrotation

English translation:

rotational moulding/rotomoulding

Added to glossary by Edward Bradburn
Oct 17, 2009 16:07
14 yrs ago
1 viewer *
German term

Kaltrotation

German to English Tech/Engineering Materials (Plastics, Ceramics, etc.) Plastics: working/processing
I have this with not much relevant context in a document talking about shopfloor control at a manufacturer of medical anatomical figures (phantoms, etc.).

Here is the context (suitably anonymised):

"Fertigung anatomischer Modelle in [Stadt] und [Stadt] mit: Kunststoffbe-/verarbeitung (z.B. Kaltrotation, Warmrotation, Spritzguss)."

The list continues to include metalworking, coating, assembly, etc.

I have consulted a number of sources, incl. Ernst, but to little avail: no direct matches.

My best rendering so far is "cold spin" (and, since we have Warmrotation, "hot spin"). These are methods used in metalworking, but I am naturally not sure if they apply to plastics.

Anyone with more than a passing interest in plastics manufacturing is cordially invited to comment!

Proposed translations

+2
20 hrs
Selected

rotational moulding/rotomoulding

This is a process often used for large volume hollow plastic objects. There are versions in which the moulds are heated in an oven and other versions in which the mould is directly heated.
There's a good animated demo available (see ref below).
Good luck
DB
Peer comment(s):

agree Bernd Runge : ... but don't forget the cold/hot part.
19 hrs
Thanks Bernd - I use the products of rotomoulding daily, but have never designed for it during my careeer so my in-depth knowledge is sketchy. The cold/hot distinction is evidently to do with the directly heated vs. oven heated moulds.
agree Harald Moelzer (medical-translator)
2 days 17 hrs
Thanks Harald
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4 KudoZ points awarded for this answer. Comment: "Many thanks to all commenters. I have chosen this based on the references provided, the peer agreement and also the fact that my client quite obviously makes the same kinds of products (hollow arms and legs, etc.!)."
45 mins

cold spin

what's good for metalworking is good for plastics, only the material is different. "cold spin", "warm spin", "injection moulding"
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-1
45 mins

unheated spin

Your suggestion of cold spin/hot spin would be perfectly alright, but I would suggest unheated spin for Kaltrotation. There are quite a number of Google hits with this usage.
Peer comment(s):

disagree Kim Metzger : But zero Google hits in reference to moulding.
5 days
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-1
1 day 2 hrs

cold work

hot/cold work
... such that the strain hardening is not relieved is called cold work. Considerable knowledge on the structure of the cold-worked state has been obtained. ... Hot working refers to the process where metals are deformed above their ...
www.tpub.com/content/doe/h1017v1/css/h1017v1_82.htm -
Peer comment(s):

disagree Kim Metzger : I'm certainly not 100% sure that Kaltrotation is cold work.
4 days
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