Indlela yokusebenzisa igesi ngendlela efanele ku-Laser Welding

Ku-laser welding, igesi evikelayo izothinta ukwakheka kwe-weld, ikhwalithi ye-weld, ukujula kwe-weld nobubanzi be-weld. Ezimweni eziningi, ukuvuthela igesi evikelayo kuzoba nomthelela omuhle ekushiseleni, kodwa kungase futhi kulethe imiphumela emibi.

1. Ukuvuthela okulungile kugesi evikelayo kuzovikela ngokuphumelelayo i-weld pool ukunciphisa noma ukugwema ngisho ne-oxidation;

2. Ukuvuthela okulungile kugesi elivikelayo kunganciphisa ngempumelelo ukuchaphaza okukhiqizwa ohlelweni lokushisela;

3. Ukuvunguza okulungile kugesi evikelayo kungenza ukuqiniswa kwe-weld pool kusakazeke ngokulinganayo, kwenze iyunifomu yokwenza i-weld ibe yinhle;

4. Ukuphephetha ngendlela efanele kwegesi evikelayo kunganciphisa ngempumelelo umphumela wokuvikela umhwamuko wensimbi noma ifu le-plasma ku-laser, futhi kukhuphule izinga elisebenzayo lokusebenzisa i-laser;

5. Ukushaywa kahle kwegesi yokuzivikela kunganciphisa ngempumelelo i-porosity ye-weld.

Uma nje uhlobo lwegesi, ukugeleza kwegesi kanye nemodi yokuphefumula kukhethwa ngendlela efanele, umphumela omuhle ungatholakala.

Kodwa-ke, ukusetshenziswa okungalungile kwegesi yokuzivikela nakho kungathinta kabi ukushisela.

Imiphumela emibi

1. Ukuphephetha okungalungile kwegesi evikelayo kungase kuholele ekushiseleleni okubi:

2. Ukukhetha uhlobo olungalungile lwegesi kungase kuholele ekuqhekekeni kwe-weld futhi kunciphise izakhiwo zemishini ze-weld;

3. Ukukhetha izinga lokugeleza kokuphephuka kwegesi okungalungile kungase kuholele ku-oxidation ye-weld eyingozi kakhulu (ukuthi izinga lokugeleza likhulu kakhulu noma lincane kakhulu), futhi kungase kubangele ukuba insimbi ye-weld pool iphazamiseke kakhulu ngamandla angaphandle, okuholela ekuweni kwe-weld noma ukubumba okungalingani;

4. Ukukhetha indlela engalungile yokuvunguza igesi kuzoholela ekuhlulekeni komphumela wokuvikela weld noma ngisho ngokuyisisekelo ungabi nawo umphumela wokuvikela noma kube nomthelela ongemuhle ekubumbeni kokushisela;

5. Ukuphefumula ngegesi elivikelayo kuzoba nomthelela othile ekujuleni kwe-weld, ikakhulukazi uma ipuleti elincane lishiselwe, kuzonciphisa ukujula kwe-weld.

Uhlobo lwegesi yokuvikela

Amagesi okuvikela ama-laser welding asetshenziswa kakhulu ikakhulukazi yi-N2, Ar, He, izakhiwo zayo zomzimba nezamakhemikhali zihlukile, ngakho-ke umphumela we-weld nawo uhlukile.

1. N2

Amandla e-ionization we-N2 aphakathi, aphakeme kunalawo e-Ar futhi aphansi kunalawo ka-He. I-ionization degree ye-N2 ivamile ngaphansi kwesenzo se-laser, enganciphisa kangcono ukwakheka kwefu le-plasma futhi ngaleyo ndlela ikhulise izinga lokusebenzisa elisebenzayo le-laser.Nitrogen ingasabela nge-aluminium alloy ne-carbon steel ekushiseni okuthile, ikhiqize i-nitride, ezokwenza ngcono ukuqina kwe-weld, futhi kunciphise ukuqina, okuzoba nomthelela omkhulu we-nitrogen onconywayo, ngakho-ke umphumela we-nitrogen ongafanele usetshenziswe ku-mechanical adverse ukuvikela i-aluminium alloy kanye ne-carbon steel welds.

I-nitrogen ekhiqizwa ukusabela kwamakhemikhali e-nitrogen nensimbi engagqwali ingathuthukisa amandla okuhlangana okushisela, okuzoba usizo ekuthuthukisweni kwezakhiwo zemishini ye-weld, ngakho-ke i-nitrogen ingasetshenziswa njengegesi evikelayo lapho kushiselwa insimbi engagqwali.

2. Ar

I-Ar ionization energy isihlobo esincane, ngaphansi komphumela we-laser ionization degree iphakeme, ayisizi ukulawula ukwakheka kwefu le-plasma, ingakwazi ukusetshenziswa okusebenzayo kwe-laser ukukhiqiza umphumela othile, kodwa umsebenzi we-Ar uphansi kakhulu, kunzima ukusabela ngezinsimbi ezivamile, futhi izindleko ze-Ar aziphezulu, ngaphezu kwalokho, ukuminyana kwe-Ar kukhulu, kunenzuzo ukuvikela i-wald pool ngenhla, ukucwiliswa kwensimbi . pool, ngakho ingasetshenziswa njengendlela igesi ezivamile zokuzivikela.

3. Yena

Unamandla aphezulu kakhulu e-ionization, ngaphansi komphumela we-laser ionization degree iphansi, ingakwazi ukulawula kahle ukwakheka kwefu le-plasma, i-laser ingasebenza kahle ensimbi, inombolo yomphakathi ye-WeChat: i-welder encane, umsebenzi futhi Uphansi kakhulu, okuyisisekelo akusabeli ngezinsimbi, kuyigesi evikelayo yokushisela, kodwa Ibiza kakhulu, igesi ayisetshenziselwa ukukhiqizwa kwemikhiqizo eminingi kakhulu, ucwaningo lwesayensi futhi alusetshenziselwa ukukhiqiza imikhiqizo eminingi kakhulu.