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Device like soldering iron but temperature up to 100 celsius

Discussion in 'General Electronics Chat' started by peterlars, Feb 20, 2017.

  1. peterlars

    Thread Starter New Member

    Feb 20, 2017
    6
    1
    Hi guys,

    I was wandering if anyone knows a device like soldering iron but with temperature reaching up to 100C. Need it for some experiments.
    Thank you in advance.

    Peter
     
  2. crutschow

    Expert

    Mar 14, 2008
    23,116
    6,854
    Use a lamp dimmer to power a standard soldering iron and control the voltage to get the temperature you want.
    Ot do you need to have a control that reads out the temperature?
     
    bulrush likes this.
  3. GopherT

    AAC Fanatic!

    Nov 23, 2012
    7,983
    6,786
    Buy a tea cup heater. They are designed to be submerged. They get hotter than 100C when not submerged but water keeps them from going hotter while in the cup.

    https://www.bedbathandbeyond.com/st...a_LSWsh2134umpy7Q0u399XZuc7iS8CSZ2RoCBXfw_wcB
     
  4. Reloadron

    Distinguished Member

    Jan 15, 2015
    4,462
    2,184
    If a soldering iron powered using a lamp dimmer won't work you could look at "Cartridge Heater" options including a correct length and diameter cartridge heater driven by a lamp dimmer. A Google of cartridge heater should bring up a few dozen hits. Also, the tea cup and coffee cup heaters mentioned work well and I think some run on 12 volts for automotive applications.

    Ron
     
  5. peterlars

    Thread Starter New Member

    Feb 20, 2017
    6
    1
    I need something that reads and regulates the temperature


    Good idea but I need something to regulate and show the temperature. The temperature must be adjustable from 40 to 100C
     
    Last edited by a moderator: Feb 21, 2017
  6. wayneh

    Expert

    Sep 9, 2010
    16,102
    6,219
    100°C is far below the typical soldering temperature and I'm not aware of any commercial device that will do what you ask.

    You could build one by putting a soldering iron under feedback control of a LM35 thermometer attached to the barrel of the soldering tip. I'm not sure but you might be able to get enough power to the tip at 12V DC, to hold that temperature. This would give you an all-DC solution which could be easier to design and build. It'd be easy to test with a car battery to see if a soldering iron gets to boiling, or maybe someone here already knows.

    Simple on/off control like a thermostat should be good enough to get your tip to within ±1°C or so. You could also look into using a PWM controller if you need to further slow down the rate of heating. You can buy those very inexpensively on eBay these days.
     
  7. Reloadron

    Distinguished Member

    Jan 15, 2015
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    Before we get much further it would help to know what you are heating? For example an oven like box or maybe a metal plate?
    Really needs to be further defined because what you are getting at now becomes a heater and control loop or system. You need a sensor to sense the temperature, a display to display the temperature and some form of temperature control. Depending on need the control may be as simple as an On/Off or more elaborate such as a form of PID (Proportional Integral Derivative) type control. You really need to define in some detail what experiments you have in mind? Include the expected tolerance for temperature you wish to maintain, for example 212 degrees F +/- 5.0 degrees F.

    In some cases it becomes easier to build a turn key solution like buy a controller verse build and use a readily available sensor.

    Ron
     
  8. bertus

    Administrator

    Apr 5, 2008
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    peterlars likes this.
  9. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  10. Reloadron

    Distinguished Member

    Jan 15, 2015
    4,462
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    Amazing how cheap (inexpensive) controllers have become off the boat from China. :)

    Ron
     
  11. kubeek

    Expert

    Sep 20, 2005
    5,584
    1,094
    My soldering iron goes to less than 100°C, but it is a circuit I copied ages ago from a magazine and can´t really find again, also I know for a fact the triac controller is not available anymore.

    Anyway, if the form factor of a soldering iron and the range of available tips is ok for you, how about buying a replacement iron handle, and making/adapting your own electronics to get your temperature range?

    What do you want to use it for? Do you need the sharp tips, or just to heat Something to 40-100°C?
     
  12. peterlars

    Thread Starter New Member

    Feb 20, 2017
    6
    1
    T
     
  13. peterlars

    Thread Starter New Member

    Feb 20, 2017
    6
    1
    wayneh likes this.
  14. peterlars

    Thread Starter New Member

    Feb 20, 2017
    6
    1
    I need it for some experiments in human skin for acne vulgaris. Bertus posted the device that I was searching for.
     
  15. wayneh

    Expert

    Sep 9, 2010
    16,102
    6,219
    Now I am aware. Thanks @bertus. This reconfirms my belief in searching far and wide for a commercial product before setting off to build anything. Nature and the marketplace are more abundant than we imagine.
     
  16. wayneh

    Expert

    Sep 9, 2010
    16,102
    6,219
    My gym has a steam room and I've noticed it is exceptional for opening and cleansing pores. The eucalyptus spray is probably antimicrobial as well. Some of the pore cleansing is due to profuse sweating and I think the high moisture helps also beyond just making you feel hotter. A localized dry heat won't have these effects of full-body sweating and high moisture, but will bring blood flow to the treated area. I guess I'm predicting dry heat won't be as effective as wet. Do come back with your data.
     
  17. peterlars

    Thread Starter New Member

    Feb 20, 2017
    6
    1
    will do
     
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