Removing bubbles from laser tube

kirill's picture
Submitted by kirill on Tue, 03/11/2014 - 10:53

Laser tubes should not be operated with air trapped within cooling piping as this can cause temperature hotspots and compromise integrity of the tube.

In ideal world, stream of water would remove all the bubbles but in our reci tube there are some welding spots where water becomes turbulent and traps pretty large air bubbles. This trapped air is very hard to remove.

To remove those you can:

Wait

If you wait long enough they will disolve themselves, but it can take hours!

Tilt

You can turn off chiller and tilt entire cutter, all you need to do is get bubbles moving couple of inches away from blocking spot. Obviously this method is only feasable if you have small cutter or someone really strong  (like Vladimir Putin) in your workshop.

Pump cycle

Turn pump on and off, quite often bubbles will move slightly from the deadlock place if you turn off the pump, catch this moment and turn pump again to remove the bubbles. This is quite tricky and does not work all the time.

Turbulences in water flow

Best way we found is to cause turbulences in water flow, all what needs to be done is to pinch and release incoming [from laser tube perspective] water hose once or twice, pinch will cause pump to build up pressure and when you release that pressure is going into the tube causing strong turbulences and removing bubbles. Our CW-5200 chiller pump is connected to coolant pipes using soft silicone joints, those can be easily pinched by hand.

Be careful when pinching, start gently, turbulences and overpressure caused by this are quite strong, if we pinch ours all the way we can almost feel cutter to vibrate on release. It can damage laser tube.

Rear of chiller
Rear of chiller

 

Tags: 
workshop
laser
water

37554 Comments

Anonymous

MichaelToism (not verified)

on

Thu, 02/20/2025 - 06:50

Discover endless entertainment at <a href=https://2fmoviesto.com/>Fmovies</a>! Stream the latest movies, TV shows, and series in HD, all for free. Enjoy a user-friendly interface, fast streaming, and a vast library updated daily. Your favorite content is just a click away!

Anonymous

Christer (not verified)

on

Thu, 02/20/2025 - 10:34

pharmacie en ligne sans ordonnance <a href=" http://lzdsxxb.com/home.php?mod=space&uid=3920739 ">pharmacie en ligne france livraison internationale</a> or <a href=" https://images.google.com.do/url?q=https://pharmaciemeilleurprix.com ">pharmacie en ligne france pas cher</a>
http://www.passerelle.or.jp/modules/wordpress/wp-ktai.php?view=redir&url... Pharmacie en ligne livraison Europe
[url=http://www.ra2.od.ua/engine/redirect.php?url=http://pharmaciemeilleurpri... en ligne france pas cher[/url] pharmacie en ligne france pas cher and [url=https://dongzong.my/forum/home.php?mod=space&uid=20968]Pharmacie sans ordonnance[/url] pharmacie en ligne avec ordonnance

Anonymous

RaymondDiele (not verified)

on

Thu, 02/20/2025 - 14:14

SildГ©nafil 100mg pharmacie en ligne <a href=" http://www.bqmoli.com/bbs/home.php?mod=space&uid=20408 ">Le gГ©nГ©rique de Viagra</a> or <a href=" https://www.google.nu/url?q=https://viagrameilleurprix.com ">Viagra gГ©nГ©rique sans ordonnance en pharmacie</a>
https://www.akutsu-dc.com/feed2js/feed2js.php?src=https://viagrameilleur... Meilleur Viagra sans ordonnance 24h
[url=https://maps.google.com.cu/url?rct=j&sa=t&url=https://viagrameilleurprix... sans ordonnance 24h Amazon[/url] Viagra vente libre pays and [url=https://www.support-groups.org/memberlist.php?mode=viewprofile&u=331769]... gГ©nГ©rique sans ordonnance en pharmacie[/url] Viagra homme prix en pharmacie sans ordonnance

Anonymous

Davidzef (not verified)

on

Thu, 02/20/2025 - 20:00

pharmacie en ligne france fiable <a href=" https://dongzong.my/forum/home.php?mod=space&uid=21040 ">pharmacie en ligne france pas cher</a> or <a href=" http://www.slotgemeinde.de/go.php?url=http://kamagrameilleurprix.com ">pharmacie en ligne fiable</a>
https://clients1.google.mk/url?q=https://kamagrameilleurprix.com pharmacie en ligne avec ordonnance
[url=https://scanverify.com/siteverify.php?site=kamagrameilleurprix.com]pharm... en ligne france livraison belgique[/url] pharmacie en ligne france livraison internationale and [url=https://www.xiaoditech.com/bbs/home.php?mod=space&uid=2429558]pharmacie en ligne[/url] pharmacie en ligne france livraison internationale

Anonymous

Christer (not verified)

on

Thu, 02/20/2025 - 20:08

pharmacie en ligne france pas cher <a href=" https://www.gztongcheng.top/home.php?mod=space&uid=308012 ">pharmacie en ligne</a> or <a href=" https://www.google.com.tr/url?q=https://pharmaciemeilleurprix.com ">pharmacie en ligne france fiable</a>
http://images.google.ac/url?q=https://pharmaciemeilleurprix.com vente de mГ©dicament en ligne
[url=https://maps.google.dz/url?sa=t&url=https://pharmaciemeilleurprix.com]Ph... en ligne livraison Europe[/url] Pharmacie sans ordonnance and [url=http://www.donggoudi.com/home.php?mod=space&uid=2400588]pharmacie en ligne livraison europe[/url] Achat mГ©dicament en ligne fiable

Anonymous

KeithTrink (not verified)

on

Fri, 02/21/2025 - 01:48

pharmacie en ligne avec ordonnance <a href=" http://80tt1.com/home.php?mod=space&uid=2808712 ">Pharmacie Internationale en ligne</a> or <a href=" https://www.google.lu/url?sa=t&url=https://tadalafilmeilleurprix.com ">trouver un mГ©dicament en pharmacie</a>
https://vatikan.pennergame.de/redirect/?site=https://tadalafilmeilleurpr... Pharmacie Internationale en ligne
[url=https://fjb.kaskus.co.id/redirect?url=http://tadalafilmeilleurprix.com]p... en ligne fiable[/url] acheter mГ©dicament en ligne sans ordonnance and [url=http://mi.minfish.com/home.php?mod=space&uid=1267696]pharmacie en ligne pas cher[/url] pharmacie en ligne france fiable

Pages

Add your comment

More information about text formats

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.