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

17975 Comments

Anonymous

JamesJox (not verified)

on

Mon, 06/09/2025 - 23:03

viagra 100mg cost in usa <a href=" http://sotoycasal.com/user/owqpirazuu/ ">cheap viagra pills canada</a> or <a href=" http://tomsawyer-sportsclub.jp/_m/index.php?a=free_page/goto_mobile&refe... ">sildenafil 100mg price in india</a>
http://mx.taskmanagementsoft.com/bitrix/redirect.php?goto=https://vgrsou... how does viagra work
[url=https://wikiroutes.info/away?to=https://vgrsources.com]how to purchase viagra pills[/url] cost of sildenafil 30 tablets and [url=https://seneporno.com/user/ayyfpyfeek/videos]viagra otc uk[/url] female viagra tablets

Anonymous

Justinbep (not verified)

on

Mon, 06/09/2025 - 23:36

viagra 100mg online buy india <a href=" https://milburnflooring.com/user/nmcmkvxuxs/ ">canadian pharmacy viagra uk</a> or <a href=" http://www.sandyridgebaptistchurch.com/System/Login.asp?id=50210&Referer... ">sildenafil 100mg price usa</a>
https://cse.google.co.ls/url?sa=t&url=http://vgrsources.com viagra online in india
[url=http://u.42.pl/index.php?descr=cinquantenuancesdegreystreamingvf19641&ur... online viagra[/url] viagra meaning and [url=http://www.lionsinfosys.com/user/ehlvzalefx/?um_action=edit]25mg viagra daily[/url] can you buy generic viagra

Anonymous

JamesJox (not verified)

on

Tue, 06/10/2025 - 00:14

50 mg viagra cost <a href=" https://stuff-and-nonsense.net/user/npcwlhrygz.npcwlhrygz/?um_action=edit ">real viagra no prescription</a> or <a href=" https://images.google.ee/url?sa=t&url=https://vgrsources.com ">viagra canadian pharmacy no prescription</a>
https://www.google.co.vi/url?q=https://vgrsources.com viagra brand online
[url=https://maps.google.com.gi/url?q=https://vgrsources.com]generic viagra lowest price[/url] 200 mg viagra india - and [url=https://allchoicesmatter.org/user/eewgpdpszr/?um_action=edit]sildenafil citrate australia[/url] sildenafil 50mg best price

Anonymous

Jamesdok (not verified)

on

Tue, 06/10/2025 - 01:59

female viagra india price <a href=" http://www.sportchap.ru/user/gjaondulhl/ ">get viagra prescription online</a> or <a href=" https://www.google.com.ni/url?sa=t&url=https://vgrsources.com ">viagra medicine online purchase</a>
https://clients1.google.ac/url?q=https://vgrsources.com viagra 50 mg for sale
[url=https://cse.google.nr/url?sa=t&url=https://vgrsources.com]generic sildenafil 20 mg cost[/url] purchasing viagra in usa and [url=https://airandme.org/fr/user/eqagcgqsio/]generic viagra india pharmacy[/url] viagra cheap online uk

Anonymous

Robertlunny (not verified)

on

Tue, 06/10/2025 - 06:54

where can i get generic viagra <a href=" https://act2day.eu/profile/cxfperzfpt/ ">cheap sildenafil online no prescription</a> or <a href=" https://www.google.md/url?q=https://vgrsources.com ">viagra brand canada</a>
https://toolbarqueries.google.com.mt/url?sa=t&url=https://vgrsources.com viagra for women over the counter
[url=http://www.marcomanfredini.it/radio/visualizzacollezione.php?paginanews=... cheap sildenafil[/url] discount pharmacy viagra and [url=http://lenhong.fr/user/uomquzcngf/]cheapest sildenafil australia[/url] buy viagra professional

Anonymous

Robertlunny (not verified)

on

Tue, 06/10/2025 - 08:06

buy viagra 500mg <a href=" https://501tracking.com/user/gptowunmpk/?um_action=edit ">viagra medicine price in india</a> or <a href=" https://maps.google.mv/url?sa=t&url=http://vgrsources.com ">where to get generic viagra online</a>
http://give-spiral.co.jp/index.php?a=free_page/goto_mobile&referer=https... how to get female viagra otc
[url=https://www.google.ht/url?q=https://vgrsources.com]online viagra cost[/url] where to get female viagra uk and [url=https://tcidental.com/user/shyobxhvkj/]sildenafil 100 mg generic price[/url] sildenafil 50 mg generic

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.