Pengertian Las Listrik

Las busur listrik umumnya disebut las listrik adalah salah satu cara menyambung logam dengan jalan menggunakan nyala busur listrik yang diarahkan ke permukaan logam yang akan disambung. Pada bagian yang terkena busur listrik tersebut akan mencair, demikian juga elektroda yang menghasilkan busur listrik akan mencair pada ujungnya dan merambat terus sampai habis. Logam cair dari elektroda dan dari sebagian benda yang akan disambung tercampur dan mengisi celah dari kedua logam yang akan disambung, kemudian membeku dan tersambunglah kedua logam tersebut.

Mesin las busur listrik dapat mengalirkan arus listrik cukup besar tetapi dengan tegangan yang aman (kurang dari 45 volt). Busur listrik yang terjadi akan menimbulkan energi panas yang cukup tinggi sehingga akan mudah mencairkan logam yang terkena. Besarnya arus listrik dapat diatur sesuai dengan keperluan dengan memperhatikan ukuran dan type elektrodanya.

Pada las busur, sambungan terjadi oleh panas yang ditimbulkan oleh busur listrik yang terjadi antara benda kerja dan elektroda. Elektroda atau logam pengisi dipanaskan sampai mencair dan diendapkan pada sambungan sehingga terjadi sambungan las. Mula-mula terjadi kontak antara elektroda dan benda kerja sehingga terjadi aliran arus, kemudian dengan memisahkan penghantar timbullah busur. Energi listrik diubah menjadi energi panas dalam busur dan suhu dapat mencapai 5500 °C.

Ada tiga jenis elektroda logam, yaitu elektroda polos, elektroda fluks dan elektroda berlapis tebal. Elektroda polos terbatas penggunaannya, antara lain untuk besi tempa dan baja lunak. Biasanya digunakan polaritas langsung. Mutu pengelasan dapat ditingkatkan dengan memberikan lapisan fluks yang tipis pada kawat las. Fluks membantu melarutkan dan mencegah terbentuknya oksida-oksida yang tidak diinginkan. Tetapi kawat las berlapis merupakan jenis yang paling banyak digunakan dalam berbagai pengelasan komersil.

239 thoughts on “Pengertian Las Listrik

  1. I’m from England madthumbs The top item, an 18-karat gold, multi-gem earring andnecklace set, is expected to fetch between $10,000 and $15,000.The necklace and earrings set include multiple topaz, diamond,peridot and citrine gemstones.

  2. Pingback: viagra canada
  3. Pingback: otc viagra
  4. Pingback: generic viagra
  5. Pingback: cialis daily
  6. Pingback: cialis
  7. Pingback: cialis daily
  8. Pingback: cialis mg
  9. Pingback:
  10. Pingback: viagra generic
  11. Pingback: female viagra
  12. Pingback: sildenafil 50 mg
  13. Pingback: cialis 20
  14. Pingback: viagra pill
  15. Hey!
    I know this is somewhat off topic but I was wondering if
    you knew where I could locate a captcha plugin for my
    comment form? I’m using the same blog platform as yours and
    I’m having difficulty finding one?
    Thanks a lot!

  16. Pingback: tadalafil mylan
  17. Pingback: what is cialis
  18. Pingback: viagra price
  19. Pingback: aperta
  20. Pingback: sildenafil
  21. Pingback: otc ed meds
  22. Pingback: viagra buy
  23. After I originally commented I seem to have clicked on the
    -Notify me when new comments are added- checkbox and now every time a comment is
    added I get four emails with the exact same comment.
    There has to be a means you can remove me from that service?

    Appreciate it!

  24. Pingback: homemade viagra
  25. My coder is trying to convince me to move to .net from PHP.

    I have always disliked the idea because of the costs.
    But he’s tryiong none the less. I’ve been using Movable-type on a variety of websites for about a year and am
    nervous about switching to another platform.
    I have heard good things about
    Is there a way I can transfer all my wordpress content into it?
    Any kind of help would be greatly appreciated!

  26. Could you transfer $1000 from my current account to my deposit account? stromectol ivermectin
    All this is happening at the same time his signature achievement, the Patient Protection and Affordable Care Act, is collapsing under its own weight. The GOP may have committed a tactical error by trying to cut off funding for its various parts as part of the continuing resolution but there is no denying that the program was not ready for primetime on day one of its operation.

  27. What’s your number? stromectol ivermectin
    “It’s not surprising in the sense that we haven’t seen any traction with their devices, and it’s obviously exacerbated by the fact that you’ve got Apple out with a new product, you’ve got several new Android products, and Blackberry continues not to get traction.”

  28. Photography stromectol ivermectin
    Financial ties between Europe and the United States arealready huge, accounting for 60 percent of world banking. EUinvestors own $2.7 trillion of U.S. stocks and bonds, while U.S.residents hold almost as much in Europe.

  29. Could you send me an application form? stromectol ivermectin
    Even if the data is mixed, are we really to blame for-profits for exploring America’s neglected corners? Reflecting on the industry’s struggles, Gunderson said, “I think it’s a cheap shot to criticize our sector for serving students who are low-income and eligible for financial aid. I don’t see anybody else trying to serve them and I think there’s real evidence that the traditional elites are not reaching out and serving that constituency.” It would be easier to refute Gunderson’s point if states hadn’t just spent a half-decade defunding community colleges.

  30. Pingback: viagra cost
  31. Pingback: buy viagra online
  32. I’m really inspired with your writing talents and also with the structure on your blog.
    Is this a paid topic or did you modify it yourself?
    Anyway keep up the excellent high quality writing, it’s
    uncommon to look a nice weblog like this one nowadays..

  33. An intriguing discussion is definitely worth comment.
    I think that you need to write more about this subject
    matter, it may not be a taboo matter but typically people
    don’t speak about such subjects. To the next! Kind regards!!

  34. Pingback: buy viagra cheap
  35. Pingback: chewable viagra
  36. Pingback: sildenafil 20mg
  37. Pingback: viagra price
  38. Pingback: hims viagra
  39. Pingback: viagra usa
  40. Pingback: roman viagra
  41. Pingback: sildenafil goodrx
  42. Pingback: meritroyalbet
  43. Pingback: meritroyalbet
  44. Pingback: eurocasino
  45. Pingback: viagra or cialis
  46. Hello there! I know this is kinda off topic nevertheless I’d figured I’d ask.
    Would you be interested in exchanging links or maybe guest writing a blog article
    or vice-versa? My blog discusses a lot of the same topics as
    yours and I feel we could greatly benefit from each other.

    If you are interested feel free to send me an e-mail.

    I look forward to hearing from you! Great blog by the way!

  47. Hi there outstanding blog! Does running a blog like this
    take a massive amount work? I’ve absolutely no understanding of coding but I was hoping
    to start my own blog in the near future. Anyway, should you have any recommendations or tips for new blog owners please share.
    I understand this is off topic nevertheless I just needed to ask.

  48. Pingback: meritroyalbet
  49. Pingback: cialis coupon 20mg
  50. Pingback: meritking
  51. Pingback: buy viagra 25mg
  52. Pingback: slot siteleri
  53. Pingback: child porn
  54. Pingback: child porn
  55. Pingback: elexusbet
  56. Thanks so much for giving everyone such a remarkable chance to discover important secrets from this website. It is always so lovely and jam-packed with a lot of fun for me and my office acquaintances to search the blog at a minimum thrice in a week to read through the newest issues you will have. And definitely, we’re actually motivated with your dazzling tips and hints you give. Some two ideas in this article are truly the most effective I have ever had.

  57. Pingback: madridbet
  58. Pingback: cialis pills 20mg
  59. Pingback: viagra women
  60. Pingback: cialis daily
  61. Pingback: cialis black
  62. Pingback: viagra falls
  63. Pingback: viagra for sale uk
  64. I was wondering if anyone knows what happened to Dime Piece LA celebrity streetwear brand? I am having trouble to proceed to the checkout on Dimepiecela site. I’ve read in Harpers Bazaar that they were bought out by a UK hedge fund in excess of $50 million. I have just bought the Dimepiece Do You Faux Suede Square Pillow from Amazon and absolutely love it xox

  65. Pingback: covid ivermectin
  66. Pingback: discount tadalafil
  67. Pingback: stromectol sale

Leave a Reply

Your email address will not be published.