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05:33 Jun 22, 2001
German to English translations [Non-PRO]
German term or phrase: Dornstangenlösewalzwerk
Begriff in der Metallographie (bestimmte Art eines Walzwerkes)
Annelie Sthr

Summary of answers provided
na +1(mandrel bar) extractor mill
naMandrel bar/rod detaching millAntje Ruppert



4 mins
Mandrel bar/rod detaching mill

Dornstange - mandrel bar/rod
Lösewalzwerk - detaching mill



Antje Ruppert
United States
Local time: 16:42
PRO pts in pair: 73
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48 mins peer agreement (net): +1
(mandrel bar) extractor mill

as found at the following website:
which says the following

The rolling process starts when the cast round is charged into a walking beam reheat furnace. The cast rounds are produced double length and are hot sawed upon exiting the reheat furnace. The cut round then proceeds to the piercer. The piercer is equipped with Diescher discs in order to provide superior outside diameter surface quality of the pierced shell. The rolls exert a force on the round causing the center to weaken and be forced over the piercer point. The shell is conveyed to the 6-stand retained mandrel mill or MPM (Multi-Stand Pipe Mill). The mandrel bar is inserted into the shell and both are transported into the MPM.

The shell is then removed from the mandrel bar in the 3-stand extractor mill. Upon exiting the extractor mill, the pipe is conveyed to a walking beam temperature equalization table. The pipe then enters the 9-stand , 3-roll per stand sizing mill. The ends of the pipe are hot sawed, then the pipe is transferred across the cooling bed to the 7-roll rotary straightener. Products that can ship direct to customer receive an electro-magnetic inspection (EMI) by and independent inspection company off-line. The pipe is hydrostatically pressure tested and end cut or threaded as specified. The pipe is weighed, measured, and stenciled and a rust inhibiting coating is applied. Tubular products meeting API specified requirements are monogrammed.

I hope that is what you are looking for

    see above
Local time: 22:42
PRO pts in pair: 81

Peer comments on this answer (and responses from the answerer)
agree  Dierk Seeburg
5 days
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