Segesi kunye nesicelo yayo practice.

Enye iindlela umchiza amalungu metal omnye komnye i welding gas apho inkqubo welding lwenziwa ngokufudumeza kwaye ukunyibilikisa isinyithi kunye nemithungo. Yenziwe ngokusebenzisa ukuwelda lidangatye akhiwa ukutshiswa iasithilini kwi jet kwe-oksijini. Kwakhona, hydrogen isetyenziselwa le njongo, separafini, zepetroli nezinye iigesi ezivuthayo. lobushushu ilangatye evela ukutshiswa kwezi gesi amaqondo obushushu ayafika ka 3050-3150 ° C. Xa welding igesi ukuzaliswa umsantsa phakathi kungqameko iinxalenye kwenzeka ngokusebenzisa ucingo lokufaka, leyo phezu ukunyibilikisa idangatye uzalisa le msantsa.

Iveliswe segesi ngokusebenzisa izixhobo ezizodwa, eziquka itankana yokugcina igesi, leswaku ku yokulinganisa ezimbini noxinzelelo (koxinzelelo oluphezulu nezisezantsi) yenzelwe ukunyenyisa igesi ekwenziweni welding, kwakunye izitofu kunye namathumbu lokubonelela irhasi zisiza le izixhobo zokulungisa.

Gas-welding isetyenziswa kushishino loqhakamshelwano (welding) of izakhiwo yentsimbi, yaye ezinye iintsimbi nonferrous kuquka nobhedu nesinyithi, ukuba ubukhulu elingekho milimitha ngaphezu ezintlanu. Uya kusebenza kumsebenzi kukwazi iwelding igesi, ngelotha kunye nezinye ulungiso nazo. Welding metal olulingana mkhulu lukhutshwe esebenzisa arc. Kufuneka kuqatshelwe ukuba irhasi iwelding metal na alusebenzi kuthelekiswa zombane.

Metal ukusika jet ioksijini lukhutshwe ngokusebenzisa abaxholi okanye ezivuthayo ezizodwa. Umahluko eziphambili izibane iwelding gas ukuba Jets ezimbini ioksijini - enye ngokushushubeza intsimbi, elinye ukuvuthela etyhidiweyo kwiindawo ahlabayo. Bathezi zahlukile kwilungiselelo umlomo (die) ukuba ahlulwe malunga indawo zokufudumeza lidangatye kunye nemilomo ukusika jet kohlulwa, kwakunye okwalandela, concentric. Kanti yahlulwa kwi kuhlobo zamafutha asetyenziswe. Kukho nakubaxholi hydrogen, iasithilini, igesi yamalahle, hydrogen, njl ..

Inkqubo kusikwe but is ngolu hlobo lulandelayo: ekuqaleni kusikwe metal jet ukufudumeza lihlabe mhlophe, engqamana malunga 1000 ° C, emva koko wentsimbi ngokungaphelelanga combusted okanye uphaphatheke kwi sayithi ahlabayo. Kubaluleke gqitha xa usika "abambelele" lobushushu yokunyibilika intsimbi, nto leyo sikhethelwe ukuba ahlabayo ngokupheleleyo feed jet ukhetho. Isetyenziswa ukusika isinyithi, libya-carbon kunye esezantsi-ingxubevange yodidi.

Ngenxa yokuba iwelding igesi kunye nokuphungula zesinyithi - iinkqubo zoshishino efuna izakhono ezithile izixhobo ukuwelda kunye amanyathelo okhuseleko nolwazi ekwenzeni umsebenzi eshushu, ngokuba umsebenzi olu hlobo kuyimfuneko ukuba kukutsala abasebenzi abanezakhono oqeqeshiwe. izixhobo zokuphatha gadalala, kwakunye nokungahoywa ukhuseleko kunokukhokelela kwintlekele.