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immortani
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Join Date: Jul 2012
Posts: 24

RE: Heating Lead Antimony

07/09/2013 11:30 AM

I have tried heating Lead Antimony in a battery company with a heater of SS 316 sheathing. The problem is that the heater gets damaged within 4-5 days. The heating is done at 540 deg C. The same heater when used for Lead Calcium in the same company, the heater life is longer. What can be the problem? Please help.
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IdeaSmith
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#1

RE: Heating Lead Antimony

07/09/2013 11:59 AM

What sort of damage does the heater see? Do you control the temperature or does one compound need more heat for the same effect? What does the heating do in the first place?

More input needed!

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immortani
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#2
In reply to #1

RE: Heating Lead Antimony

07/09/2013 12:02 PM

There is a temperature controller which is set at about 540 deg C. The heater stops heating after few days but in the case of lead calcium soltn, the heater is working fine.
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IdeaSmith
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#3
In reply to #2

RE: Heating Lead Antimony

07/09/2013 12:47 PM

What does it take to fix the heater so it heats again? Is there heating wires? Could there be a chemical impact on the hot wires from the Antimony?

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immortani
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#4
In reply to #3

RE: Heating Lead Antimony

07/09/2013 12:55 PM

No, we have to throw the heaters and bring on a new one. There isnt a problem with the heating wires. The only thing that is worrying me is the use of SS 316. What is the ideal sheathing for lead solutions?
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IdeaSmith
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#5
In reply to #4

RE: Heating Lead Antimony

07/09/2013 1:13 PM

So what is the problem with the heater? Is the stainless stained?

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immortani
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#6
In reply to #5

RE: Heating Lead Antimony

07/09/2013 1:28 PM

It is getting stained as well the coil inside it is getting cut.
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lyn
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#7

RE: Heating Lead Antimony

07/09/2013 2:41 PM

Teflon sleeve the heater.
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immortani
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#8
In reply to #7

RE: Heating Lead Antimony

07/09/2013 3:13 PM

Will that teflon coating withstand at 540 deg C.
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lyn
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#9
In reply to #8

RE: Heating Lead Antimony

07/09/2013 3:40 PM

PTFE and PFA are rated for 500°C continuous use.

Why not try it and see if it helps?
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Just an Engineer
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#10

RE: Heating Lead Antimony

07/09/2013 5:43 PM

Contact suppliers of soldering machines (Look up wavesolder) and they will tell you the necessary metalurgy for your alloy.

There was a lot of "science" done for lead free solders and things that are relatively inert at room temperature can "dissolve" materials from the alloy once melted.

They will also be able to advise you of suitable immersion heaters for such applications.

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lyn
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#11

RE: Heating Lead Antimony

07/09/2013 8:10 PM

Contact these people: Company - Proheat Inc.

I used them for many years with good results.
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IdeaSmith (3); immortani (4); Just an Engineer (1); lyn (3)

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