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resistance annealing of brass fine wire

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6 years 4 months ago #1530 by Archived Forum Admin
Hi Peter,

Yes ,we are working with the information we got. Let's hope this resolves our problem.

Thanks.

kamal

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6 years 4 months ago #1521 by Archived Forum Admin
Please note the last line above as we are allowed only a 10 mm deviation per meter length.

Thanks

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6 years 4 months ago #1522 by Archived Forum Admin
Kamkat

Did you ever study this particular WAI Forums thread?

www.wirenet.org/forum/viewmessages.cfm?Forum=12&Topic=470

Sincerely,
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com

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6 years 4 months ago #1523 by Archived Forum Admin
Hi vettecoupe ,

Yes I did see this article , unfortunately its a totally different problem he faces.

My problem is with fine wire, consistent tensile in the online annealer and straightness of the wire.

The wire is straight while threading the machine, but when we engage the wire on the spool and run at about 900 meters per minute the wire comes out in the shape of an S. the dies are locked in place so there is no movement of dies.

Can any one throw some light on:

1. The number of wraps before and after the die.

2. Is a 3 groove pulley required after the final capstan?

3. What should be the differential speed of the final capstan/line speed and the annealing contact pulleys?

4. Any thing else I might be missing which is critical to uniform straightness and tensile strength.

Thanks in advance.

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6 years 4 months ago #1524 by Archived Forum Admin
What do you call fine wire??

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6 years 4 months ago #1525 by Archived Forum Admin
We are looking at a size range of 0.1 mm to 0.3 mm as fine wire.

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