Menene injin yankan gas na cnc ke amfani da shi?

1. Menene iskar gas na cnc gas yankan amfani?

Na'urar yankan iskar gas na cnc wani nau'in kayan aiki ne wanda ke amfani da zafin zafin plasma arc don narke a cikin gida (da ƙafe) ƙarfe a cikin ingin aikin, kuma yana amfani da saurin plasma mai sauri don cire narkakkar. karfe don samar da incision.Oxygen yana yanke karafa masu wuyar yankewa.Mafi yawan amfani da injin yankan gas na cnc gas masu aiki sune:

1. Iska

Iskar ta ƙunshi kusan kashi 78% na nitrogen ta hanyar ƙara, don haka ƙaddamarwar slag da aka kafa ta hanyar yanke iska yana da kama da wanda lokacin yanke da nitrogen;Bugu da kari, iskar kuma ta ƙunshi kusan kashi 21% na iskar oxygen ta ƙara.Gudun yankan iska mai laushi kayan karfe kuma yana da girma sosai;a lokaci guda kuma, iskar ita ce iskar gas mai aiki mafi arha, kuma nozzles da na'urorin lantarki da ake amfani da su suna da tsawon rayuwar sabis.

2. Oxygen

Na'urar yankan iskar gas ta cnc da ke amfani da iskar oxygen a matsayin iskar gas na iya kara saurin yankan kayan karfe masu sauki, amma idan aka yi amfani da iskar oxygen kadai wajen yankan, za a sami dross da kerf oxidation, kuma rayuwar electrodes da nozzles ba su da yawa, wanda hakan zai iya haifar da raguwa a cikin iska. Hakanan zai shafi ingancin aiki.da yanke farashi.

3. Argon

Argon gas da ƙyar yake amsawa da kowane ƙarfe a yanayin zafi mai yawa, argon ɗin da injin yankan iskar gas na cnc ke amfani da shi yana da ƙarfi sosai, kuma nozzles da na'urorin lantarki da ake amfani da su suna da tsawon rayuwa.Koyaya, Argon plasma Arc yana da ƙarancin wutar lantarki, ƙarancin kuzari, da iyakanceccen ikon yankewa.Idan aka kwatanta da yankan iska, cnc gas yankan kauri na inji za a rage da kusan 25%.Bugu da ƙari, a cikin yanayin kariya na argon, yanayin daɗaɗɗen ƙarfe ya fi girma, wanda shine kusan 30% mafi girma fiye da haka a cikin yanayin nitrogen, don haka za a sami ƙarin matsalolin slag.Ko da injin yankan gas na cnc tare da cakuda argon da sauran iskar gas na iya samun matsalolin mannewa slag.Sakamakon haka, ba a cika amfani da argon mai tsabta ba don yankan plasma a yau.

4. Hydrogen

Yawanci ana amfani da hydrogen azaman iskar gas don haɗawa da sauran iskar gas ɗin da injin yankan gas na cnc ke amfani dashi.Misali, sanannen iskar gas H35 (ƙarashin juzu'in hydrogen shine 35%, sauran kuma argon) ɗaya ne daga cikin iskar gas ɗin da ke da ƙarfin yanke baka na plasma mafi ƙarfi, wanda galibi saboda hydrogen.Tunda hydrogen na iya haɓaka ƙarfin ƙarfin baka sosai, jet ɗin plasma na hydrogen yana da ƙimar enthalpy mai girma.Lokacin da aka haxa shi da argon don na'urar yankan iskar gas na cnc, an inganta ikon yankewa na jet ɗin plasma sosai.Gabaɗaya, don kayan ƙarfe tare da kauri fiye da 70mm, ana amfani da argon + hydrogen da yawa.A matsayin yankan iskar gas, idan aka yi amfani da jet na ruwa don ƙara damfara argon + hydrogen plasma arc, ana iya samun ingantaccen aikin yankan lokacin yankan injin cnc gas.

5. Nitrogen

Nitrogen iskar gas ce da aka saba amfani da ita don injin yankan gas na cnc.Ƙarƙashin ƙaddamar da ƙarfin wutar lantarki mafi girma, nitrogen plasma arc yana da mafi ƙarancin aiki da makamashi mafi girma fiye da argon, ko da lokacin yankan kayan ƙarfe na ruwa tare da babban danko kamar A cikin yanayin bakin karfe da kayan haɗin nickel, adadin slag rataye. a kan ƙananan gefen yanke kuma yana da ƙanƙanta sosai lokacin yankan injin cnc gas.A cikin ainihin tsarin yankewa, ana bada shawara don zaɓar gas mai aiki mai dacewa don na'urar yankan iskar gas na cnc bisa ga bukatun ku na yankewa da farashin tattalin arziki.

Na biyu, buƙatun injin yankan plasma na iska don iska

Na'urar yankan plasma na iska, kamar yadda sunan ke nunawa, na'urar yankan plasma ce da ke amfani da iska a matsayin iskar gas mai aiki.Injin yankan gas na cnc yana da wasu buƙatu don iskar da ake amfani da su:

Iskar da injin yankan iskar gas na cnc ke amfani da shi, iskar ce mai matsewa, wanda ke bukatar iskar ta zama bushewa da tsafta, sannan ruwa da matsi su tabbata, domin a lokacin da ake yankan na'urar yankan iskar gas ta cnc, matsawar iskar gas din. , kwanciyar hankali na iska, da bushewa da tsabta na gas suna da tasiri kai tsaye.Ingancin yankan na'urar yankan iskar gas na cnc da ko za'a iya farawa arc akai-akai.Gabaɗaya, ana iya bincika ta ta hanyoyi masu zuwa:

1. Bincika ko ma'aunin iska akan ƙararrawar injin yankan gas na cnc.Idan cnc yankan gas yana ƙararrawa, da fatan za a kunna maɓallin daidaita karfin iska don ƙara yawan iska.

2. Bincika ko motsin iska akan injin yankan iskar gas na cnc yana da al'ada, kunna iska don cirewa don ganin idan ma'aunin iska ya ragu, idan digon ya yi yawa, yana nufin cewa karfin iska bai isa ba. , to, ya kamata a ƙara tankin ajiyar gas a gaban injin yankan gas na cnc don tabbatar da zirga-zirgar gas;

3. Duba ko gas din ya bushe kuma yana da tsabta, danna ƙasan mai raba ruwan mai na injin yankan gas na cnc, sannan a bar shi.Idan akwai farin ruwa mai yawa a cikin iskar da aka saki, yana nufin cewa akwai mai da ruwa da yawa a cikin iska.Bai kamata a yi amfani da irin wannan iska ba.