Ngaba ukhe wadibana naziphi na iziphene ze-welding ezifana ne-splashes enkulu ngexesha le-welding, ukwakheka kwe-weld engathandekiyo, kunye nenani elikhulu leepores emva kwe-welding?Xa usaqwalasela ukuba ngaba kungenxa yengxaki ye-laser welding process setting parameter, ngaba uyazi ukuba ukusetyenziswa okuchanekileyo kwe-welding shielding gas nayo yinto ebalulekileyo echaphazela ukubunjwa kwe-weld kunye nokusebenza.Ukukhetha igesi yokukhusela i-welding iphucula umgangatho we-welding kunye nendlela efanelekileyo.
Kuba igesi yokukhusela i-welding ibaluleke kakhulu, ke: Yintoni indima yokukhusela igesi?Indlela yokukhetha uhlobo lwegesi yokukhusela?Irhasi ekhuselayo kufuneka ivuthelwe njani ngexesha lokuwelda?Okulandelayo, iHangao Tech (i-SEKO Machinery) iya kukhokelela wonke umntu ukuba afunde ngakumbi.
Indima yegesi yokukhusela
Kwi-laser welding, ukukhusela igesi kuya kuchaphazela ukubunjwa kwe-weld, umgangatho we-weld, ubunzulu bokungena kwe-weld kunye nobubanzi bokungena.Kwiimeko ezininzi, ukuvuthela igesi ekhuselayo kuya kuba nefuthe elihle kwi-weld, kodwa kunokubangela umonakalo.Yiza nesiphumo esingathandekiyo.
Iziphumo ezilungileyo
1) Ukuvuthelwa okuchanekileyo kwegesi yokukhusela kuya kukhusela ngokufanelekileyo i-weld pool ukunciphisa okanye ukuphepha i-oxidation;
2) Ukuvuthela okuchanekileyo kwegesi yokukhusela kunokunciphisa ngokufanelekileyo i-spatter eyenziwe ngexesha lenkqubo ye-welding;
3) Ukuvuthela okuchanekileyo kwegesi yokukhusela kunokukhuthaza ukusasazeka kweyunifomu ye-weld pool ngexesha lokuqina, ukwenzela ukuba i-weld yenziwe ngokufanayo kwaye ihle;
I-4) Ukuvuthelwa ngokuchanekileyo kwegesi yokukhusela kunokunciphisa ngokufanelekileyo umphumo wokukhusela iplamu yentsimbi yomphunga okanye ifu yeplasma kwi-laser, kunye nokunyusa izinga lokusetyenziswa kwe-laser;
5) Ukuvuthela okuchanekileyo kwegesi yokukhusela kunokunciphisa ngokufanelekileyo i-welding seam porosity.
Ngethuba nje uhlobo lwegesi, izinga lokuhamba kwegesi, kunye nendlela yokuvuthela ikhethwe ngokuchanekileyo, umphumo oyifunayo unokufumaneka.
Nangona kunjalo, ukusetyenziswa okungalunganga kwegesi yokukhusela kuya kuba nefuthe elibi kwi-welding
1) Ukuvuthelwa ngokungafanelekanga kwegesi ekhuselayo kunokubangela ukuwohloka kwe-weld:
① Ukukhetha uhlobo olungalunganga lwerhasi kunokubangela iintanda kwi-weld, kwaye kunokubangela ukuba iimpawu zomatshini we weld zicutheke;
② Ukukhetha umyinge wokuvuthuza kwerhasi engalunganga kunokubangela i-oxidation enzulu ye-weld (nokuba ukuhamba kukhulu kakhulu okanye kuncinci kakhulu), kwaye kunokubangela ukuba i-weld pool yesinyithi iphazamiseke kakhulu ngamandla angaphandle kwaye ibangele ukuba iweld iwe okanye yenze. ngokungalinganiyo;
③ Ukukhetha indlela engalunganga yokuvuthela irhasi kuya kubangela ukuba umthungo wokuwelda ungaphumeleli ukuphumeza isiphumo sokhuseleko okanye ngokusisiseko kungabikho siphumo sokhuselo okanye sibe nempembelelo embi ekubunjweni komthungo wokuwelda;
I-2) Ukuvuthela kwi-gas ekhuselayo kuya kuba nefuthe elithile ekungeneni kwe-weld, ngakumbi xa u-welding amacwecwe amancinci, kuya kunciphisa ukungena kwe-weld.
Iintlobo zegesi ezikhuselayo
Iigesi ezisetyenziswa ngokuqhelekileyo zokukhusela i-laser welding ikakhulu zibandakanya i-N2, i-Ar, He, kunye neempawu zabo zomzimba kunye neekhemikhali zahlukile, kwaye ngoko ke iziphumo zazo kwi-weld nazo zahlukile.
Nitrogen N2
Ixabiso lelona liphantsi, kodwa alifanelekanga ukuwelda ezinye iintsimbi ezingenasici.Amandla e-ionization ye-N2 iphakathi, iphezulu kune-Ar kwaye iphantsi kunaleyo ye-He.Ngaphantsi kwesenzo se-laser, idigri ye-ionization yi-avareji, enokunciphisa ukubunjwa kwelifu le-plasma kunye nokunyusa izinga lokusetyenziswa kwe-laser.I-nitrojeni inokusabela ngeekhemikhali kunye ne-aluminium alloy kunye ne-carbon steel kwiqondo lokushisa elithile ukuvelisa i-nitrides, eya kwandisa i-brittleness ye-weld, ukunciphisa ukuqina, kwaye ibe nefuthe elibi kakhulu kwiipropati ze-mechanical ze-weld joint.Ngoko ke, akukhuthazwa ukusebenzisa i-nitrogen.I-aluminium alloy kunye ne-carbon steel welds zikhuselwe.
I-nitride eveliswa yi-chemical reaction phakathi kwe-nitrogen kunye nensimbi engenasici inokunyusa amandla e-weld joint, eya kunceda ukuphucula iimpawu zomatshini we-weld.Ke ngoko, initrogen ingasetyenziswa njengerhasi ekhuselayo xa udibanisa intsimbi engatyiwayo.
Argon Ar
Ixabiso liphantsi, ukuxinana kuphezulu, kwaye umphumo wokukhusela ungcono.Umphezulu we-weldment ugudileyo kunegesi ye-helium, kodwa ichaphazeleka kwi-ionization ye-plasma yensimbi ephezulu yobushushu.Kuthintelwe ngokunzulu.Amandla e-ionization ye-Ar aphantsi kakhulu, kwaye idigri ye-ionization iphezulu phantsi kwesenzo se-laser, engafanelekanga ukulawula ukubunjwa kwefu le-plasma, kwaye iya kuba nefuthe elithile ekusebenziseni ngokufanelekileyo kwe-laser.Nangona kunjalo, umsebenzi we-Ar uphantsi kakhulu kwaye kunzima ukusebenzisana neekhemikhali kunye neentsimbi eziqhelekileyo.Iindleko ze-Ar aziphezulu.Ukongeza, ingxinano ye-Ar iphezulu, enenzuzo ukutshona phezulu kwi-weld pool, kwaye inokukhusela ngcono i-weld pool, ngoko inokusetyenziswa njengegesi yokukhusela eqhelekileyo.
Helium Yena
Ixabiso libiza kakhulu, kodwa umphumo ungowona ungcono, ukwenzela ukuba i-laser idlule ngokuthe ngqo kwaye ifikelele kumphezulu we-workpiece ngaphandle kokuvinjelwa.Amandla e-ionization Yeyona iphakamileyo, kwaye idigri ye-ionization iphantsi kakhulu phantsi kwesenzo se-laser, enokulawula kakuhle ukubunjwa kwelifu leplasma.I-laser inokusebenza kwisinyithi kakuhle, kwaye umsebenzi kaYe uphantsi kakhulu, kwaye ngokusisiseko ayisebenzi ngokwekhemikhali ngesinyithi.Yigesi elungileyo yokukhusela i-welding seams, kodwa ixabiso likaYe liphezulu kakhulu.Ngokuqhelekileyo, iimveliso zokuvelisa ngobuninzi aziyi kusebenzisa le gesi.Ngokuqhelekileyo isetyenziselwa uphando lwezenzululwazi okanye iimveliso ezinexabiso eliphezulu kakhulu elongezelelweyo.
IHangao Tech (SEKO Machinery) ineminyaka engaphezu kwama-20 yamava kwi steel stainless kushishino umbhobho yokuvelisa umgca ityhubhu yokwenza oomatshini ishishini lokuvelisa.Iqela le-R&D eliqolileyo kunye neechwephesha zendibano ziya kuqhuba uluhlu olupheleleyo lolungiso kunye nokuqinisekiswa okuphindaphindiweyo kumgca ngamnye wemveliso ngaphambi kokuthunyelwa, ukwenzela ukwandisa izixhobo.Ukunciphisa ukusebenza kakuhle kunye nokunciphisa ubunzima bofakelo lwamva kunye nokulungiswa kweempazamo kubathengi.
