Joomla TemplatesBest Web HostingBest Joomla Hosting
Obavještavamo cijenjene čitaoce da će vaš i naš magazin Zrno izlaziti samo u elektronskom obliku i biće dostupan na našoj Internet stranici www.zrno.ba
English French German Italian Portuguese Russian Spanish
Home Rječnik Rječnik BRUNIRANJE

BRUNIRANJE

Prvo ćemo da raščistimo sa izrazom. Često se od naših lovaca i strijelaca čuju izrazi, bromiranje, brumiranje i broniranje koji paraju uši. Evo sad smo se dogovorili da se kaže bruniranje i tako ćemo od sada govoriti. Oksidni crni sloj koji nastaje djelovanjem kaustične sode uz dodatak natrijum nitrata i natrijum nitrita pri povišenim temperaturama na čelik, ima određena antikorozivna i dekorativna svojstva tako da je bruniranje pored svih nedostataka ostalo i danas u najširoj upotrebi u oružarstvu. Autor: Mladen Puzigaća

Ime bruna se veže za italijanski jezik, bruno - crni, ali i za francuski jezik, brun - što nemam pojma šta znači.

Bruniranje je evoluiralo od Rimskog carstva kada su iskovane mačeve potapali u kotlove sa ključalim kokošijim đubrom (primitivno fosfatiranje) i samo njima poznatim bućkurišima do današnjih dana. Možda su današnje metode malo suptilnije ali je ipak kontrolisano nastali oksidni sloj i onda i sada nastao kao antikorozivna zaštita čelika.

Bruniranje može da bude, bazično, kiselo i elektrolitičko. Po postupku može da bude toplo i hladno. Kvalitet brune isključivo zavisi od kvaliteta pripreme elektrolita i ispoliranosti metala. Plavičasto crna bruna govori da je hemija pogođena a brunirani predmet savršeno pripremljen i ispoliran.

Bruna se može poboljšati caponiranjem, sapunskim pasiviziranjem, potapanjem u hromnu kiselinu, uljenjem i namašćivanjem. Svi ovi postupci poboljšavaju kvalitet antikorozivnog sloja ali je pravilo da se bruna mora čuvati od kiselina koje je detaljno uništavaju. Poseban dušman za brunu je hlorovodonična kiselina koja je pušljiva, odnosno isparava i nepogrešivo jede onu finu crnu boju sa naše ljubimice.

 

Manja oštećenja na bruni se mogu popraviti korektivnom, hladnom brunom, ali je to sve ispod kvaliteta koji se dobije pravim bruniranjem.

Autor: Mladen Puzigaća

www.zrno.ba

Komentari (23)
  • Anoniman
    inače talijanski se crno kaže nero
  • Casap Renovations  - BRUNIRANJE
    Recently, I didn’t give plenty of consideration to leaving comments on blog webpage posts and also have placed remarks even much much less.

    http://quicktips.realtytimes.com/listings1/item/34760-saving-tips-on-h ome-renovation
  • National Homeopatic  - BRUNIRANJE
    Hi there! I just would like to give an enormous thumbs up for the good info you've got right here on this post. I will be coming back to your blog for more soon.

    http://infozama.ru/news/2009-07-21-1064.php
  • Travelstyle  - BRUNIRANJE
    What i don't realize is actually how you're not really much more well-liked than you may be now. You are so intelligent. You realize thus considerably relating to this subject, produced me personally consider it from a lot of varied angles. Its like women and men aren't fascinated unless it’s one thing to accomplish with Lady gaga! Your own stuffs nice. Always maintain it up!

    http://www.lahiriplasticsurgery.com/component/k2/author/38218.html
  • travelstyle tours  - BRUNIRANJE
    Generally I don't read post on blogs, but I would like to say that this write-up very forced me to try and do so! Your writing style has been surprised me. Thanks, quite nice post.

    http://www.dealzippy.co.uk/travelstyle-tours/
  • travelstyle  - BRUNIRANJE
    Weblog moved out in chrome

    http://naomibegumblog.blogspot.ru/2014/09/five-reasons-to-plan-your-va cation-with.html
  • travelstyle  - BRUNIRANJE
    I have to show some appreciation to the writer for bailing me out of such a scenario. Right after researching through the internet and seeing views that were not pleasant, I was thinking my life was over. Existing devoid of the answers to the problems you've resolved as a result of your entire article is a crucial case, as well as those which might have adversely affected my entire career if I hadn't encountered your web site. Your knowledge and kindness in dealing with a lot of things was crucial. I don't know what I would've done if I had not come upon such a point like this. It's possible to at this point relish my future. Thank you very much for the high quality and results-oriented help. I won't hesitate to propose your blog post to any individual who requires recommendations about this topic.

    http://www.wyomingvalleysportsdome.com/?option=com_k2&view=itemlist&ta sk=user&id=4147
  • travelstyle tours  - BRUNIRANJE
    Thank you a lot for giving everyone remarkably remarkable possiblity to read articles and blog posts from this website. It is always so excellent and packed with amusement for me personally and my office fellow workers to search your web site at the very least 3 times in one week to read the new guides you will have. Of course, I'm so at all times satisfied with all the special tips and hints you serve. Selected 3 points on this page are without a doubt the best I've ever had.

    http://www.192.com/atoz/business/chesterfield-s40/tour-operators/trave lstyle-tours/81fb8f3cd411031871c0464448466d75bb5e2cb4/ml/
  • travelstyle  - BRUNIRANJE
    What i do not realize is actually how you are not actually much more well-liked than you may be right now. You're so intelligent. You realize therefore considerably relating to this subject, produced me personally consider it from numerous varied angles. Its like men and women aren't fascinated unless it’s one thing to accomplish with Lady gaga! Your own stuffs outstanding. Always maintain it up!

    http://www.nhhappenings.com/links_frame.asp?SID=FH9Y2K9DLPRF2OZOT85TT8 DSBRV5MQIU6NC&L=charlottehendersonstyle.wordpress.com
  • best engagement rings  - BRUNIRANJE
    Have you ever considered creating an e-book or guest authoring on other sites? I have a blog based upon on the same subjects you discuss and would really like to have you share some stories/information. I know my readers would enjoy your work. If you are even remotely interested, feel free to send me an email.

    http://jewelrystores.us.com
  • mens wedding ring  - BRUNIRANJE
    There are some attention-grabbing closing dates in this article however I don’t know if I see all of them middle to heart. There may be some validity but I'll take maintain opinion till I look into it further. Good article , thanks and we want extra! Added to FeedBurner as properly

    http://jewelrystores.us.com
  • travelstyle  - BRUNIRANJE
    An interesting dialogue is value comment. I think that you need to write extra on this subject, it might not be a taboo subject but typically people are not enough to talk on such topics. To the next. Cheers

    http://www.johnnyjet.com/category/travel-style/
  • travelstyle  - BRUNIRANJE
    I've some question to you, create to these I do not e-mail

    http://www.50connect.co.uk/blogs/travelstyle-tours-offer-free-coach-ho lidays
  • travelstyle tours  - BRUNIRANJE
    I'm still learning from you, but I'm trying to achieve my goals. I certainly love reading all that is posted on your website.Keep the stories coming. I enjoyed it!

    https://uk.pinterest.com/travelstyle1992/
  • men gold wedding rings  - BRUNIRANJE
    I have read some good stuff here. Definitely worth bookmarking for revisiting. I wonder how much effort you put to create such a excellent informative web site.

    http://jewelrystores.us.com
  • travelstyle tours  - BRUNIRANJE
    I was suggested this blog by my cousin. I'm not sure whether this post is written by him as no one else know such detailed about my trouble. You're amazing! Thanks!

    https://www.facebook.com/travelstyleuk
  • engagement ring setting  - BRUNIRANJE
    Subscribed to your blog, many thanks

    http://jewelrystores.us.com
  • travelstyle tours  - BRUNIRANJE
    Hey very cool web site!! Man .. Beautiful .. Superb .. I will bookmark your site and take the feeds additionally…I am happy to search out a lot of useful info here in the publish, we need work out more strategies on this regard, thank you for sharing. . . . . .

    http://www.door2tour.com/travelstyle-coach-holidays/
  • travelstyle  - BRUNIRANJE
    Hey, I think your blog might be having browser compatibility issues. When I look at your website in Firefox, it looks fine but when opening in Internet Explorer, it has some overlapping. I just wanted to give you a quick heads up! Other then that, superb blog!

    http://www.hipcricket.org.uk/?option=com_k2&view=itemlist&task=user&id =54191
  • travelstyle tours  - BRUNIRANJE
    Hey! This post could not be written any better! Reading this post reminds me of my old room mate! He always kept talking about this. I will forward this write-up to him. Fairly certain he will have a good read. Thank you for sharing!

    http://www.192.com/atoz/business/swadlincote-de11/coach-and-bus-hire/t ravelstyle-tours/41904fa17ed6659493b4e41838082493cc77f75a/comp/
  • travelstyle tours  - BRUNIRANJE
    Hello! This is my first comment here so I just wanted to give a quick shout out and tell you I really enjoy reading your posts. Can you suggest any other blogs/websites/forums that deal with the same subjects? Thanks a ton!

    http://www.slideshare.net/travelstyle
  • engagement rings store  - BRUNIRANJE
    You can definitely see your enthusiasm in the paintings you write. The world hopes for more passionate writers like you who aren't afraid to mention how they believe. All the time follow your heart.

    http://jewelrystores.us.com
Komentiraj
Vaši kontakt detalji:
Komentar:
[b] [i] [u] [url] [quote] [code] [img]   
Security
Molim unesite anti-spam kod sa slike.
 
Secured by Siteground Web Hosting