Wakambosangana nechero hurema hwewelding senge splashes hombe panguva yewelding, isingataridzike weld formation, uye nhamba huru yemapores mushure mekugadzira?Paunenge uchiri kufunga kuti imhaka yedambudziko relaser welding process parameter marongero, unoziva here kuti iko iko kushandiswa kwewelding shielding gasi zvakare chinhu chakakosha chinokanganisa kuumbwa kweweld uye kuita.Kusarudza yakanakisa welding yekudzivirira gasi inovandudza welding mhando uye Iyo inoshanda nzira.
Sezvo welding shielding gasi yakakosha, saka: Ndeipi basa rekudzivirira gasi?Nzira yekusarudza rudzi rwekudzivirira gasi?Gasi rekudzivirira rinofanira kupepereswa sei mukati panguva yewelding?Tevere, Hangao Tech (SEKO Machina) inotungamira munhu wese kudzidza zvakawanda.
Basa rekudzivirira gasi
Mune laser welding, kudzivirira gasi kuchakanganisa weld kuumbwa, weld mhando, weld kupinda kudzika uye hupamhi hwekupinda.Muzviitiko zvakawanda, kuvhuvhuta kudzivirira gasi kuchava nemhedzisiro yakanaka pane weld, asi zvinogona kukonzera kukanganisa.Huya zvisingafadzi mhedzisiro.
Positive effects
1) Iko kuvhuvhuta kwakaringana kwekudzivirira gasi kuchanyatso chengetedza dziva re weld kuderedza kana kutodzivirira oxidation;
2) Kuvhuvhuta kwakaringana kwekudzivirira gasi kunogona kunyatso kudzikisa spatter inogadzirwa panguva yewelding process;
3) Kuvhuvhuta kwakaringana kwekudzivirira gasi kunogona kukurudzira kupararira kweyunifomu kwechidziva che weld panguva yekusimbisa, kuitira kuti weld iumbwe zvakafanana uye zvakanaka;
4) Kufuridza kwakaringana kwekudzivirira gasi kunogona kunyatso kudzikisa kudzivirira kwesimbi vapor plume kana plasma gore pane laser, uye kuwedzera inoshanda chiyero chekushandisa laser;
5) Kuvhuvhuta chaiko kwekudzivirira gasi kunogona kunyatso kudzikisa welding seam porosity.
Chero bedzi iyo gasi rudzi, gasi kuyerera mwero, uye kuvhuvhuta nzira yakasarudzwa nenzira kwayo, mhedzisiro inodiwa inogona kuwanikwa.
Nekudaro, kushandiswa kusiri iko kwekudzivirira gasi kuchavawo nemhedzisiro yakaipa pawelding
1) Kufuridza kusiri iko kwekudzivirira gasi kunogona kukonzera kudzikira kweweld:
①Kusarudza iyo isiriyo gasi rudzi kunogona kukonzera kutsemuka mukati meweld, uye zvakare kunogona kukonzera kuti ma mechanic zvimiro zveweld zvidzikire;
②Kusarudza gasi risiri iro rinovhuvhuta kuyerera kweyero kunogona kukonzera yakawedzera oxidation yeweld (kungave kuyerera kwakakurisa kana kudiki), uye zvinogonawo kuita kuti weld pool simbi ipindirwe zvakanyanya nekunze kwemasimba uye kukonzera weld kudonha kana kuumba. unevenly;
③Kusarudza iyo isiriyo gasi yekufuridza nzira kuchaita kuti musono wewelding utadze kuwana mhedzisiro yekudzivirira kana kunyangwe isina kudzivirira kana kuve nemhedzisiro yakaipa pakuumbwa kwewelding;
2) Kuvhuvhuta mukudzivirira gasi kuchava nemhedzisiro yekupinza weld, kunyanya kana welding mahwendefa matete, zvinoderedza kupinza kweweld.
Mhando dzekudzivirira gasi
Anowanzo shandiswa kudzivirira magasi e laser welding anonyanya kusanganisira N2, Ar, He, uye yavo yemuviri uye makemikari zvimiro zvakasiyana, uye saka mhedzisiro yavo pane weld yakasiyanawo.
Nitrogen N2
Mutengo wacho wakachipa, asi haukodzere kupinza mamwe masimbi asina tsvina.Iyo ionization simba reN2 ine mwero, yakakwirira kupfuura iyo yeAri uye yakaderera pane iyo yaIye.Pasi pechiito chelaser, iyo ionization degree iri pakati, iyo inogona kuderedza kuumbwa kweplasma gore uye kuwedzera chiyero chekushandisa chelaser.Nitrojeni inogona kuita zvemakemikari nealuminium alloy uye kabhoni simbi pane imwe tembiricha kuti ibudise nitrides, izvo zvinozowedzera brittleness ye weld, kuderedza kuoma, uye kuve nemhedzisiro yakaipa pamichina yejoini ye weld.Saka, hazvikurudzirwi kushandisa nitrogen.Aluminium alloy uye kabhoni simbi welds inodzivirirwa.
Iyo nitride inogadzirwa nemakemikari reaction pakati penitrogen nesimbi isina tsvina inogona kuwedzera kusimba kweiyo weld joint, izvo zvichabatsira kuvandudza ma mechanical properties ye weld.Naizvozvo, nitrogen inogona kushandiswa sechidziviriro gasi kana uchitungidza simbi isina tsvina.
Argon Ar
Mutengo wacho wakachipa, density yakakwira, uye mhedzisiro yekudzivirira iri nani.Iyo yekumusoro kweiyo weldment yakatsetseka kupfuura helium gasi, asi inotapukirwa nepamusoro-tembiricha yesimbi plasma ionization.Kudziviswa zvakadzama.Iyo ionization simba reAr ishoma, uye iyo ionization dhigirii yakakwira pasi pechiito chelaser, iyo isingakodzeri kudzora kuumbwa kweplasma gore, uye ichave nemhedzisiro pakushandiswa kunoshanda kwelaser.Zvisinei, basa reAr rakaderera zvikuru uye zvakaoma kupindirana nemakemikari nemasimbi akajairika.Mutengo weAr hauna kukwirira.Mukuwedzera, kuwanda kweAr kwakakwirira, izvo zvinobatsira kunyura kumusoro kwechidziva che weld, uye inogona kudzivirira zviri nani dziva re weld, saka rinogona kushandiswa seyakajairwa kudzivirira gasi.
Helium Iye
Mutengo wacho unodhura zvakanyanya, asi mhedzisiro ndiyo yakanyanya kunaka, kuitira kuti laser ipfuure yakananga uye isvike pamusoro peiyo workpiece isina kuvharwa.Iyo ionization simba raIye ndiye wepamusoro-soro, uye iyo ionization dhigirii yakaderera kwazvo pasi pechiito che laser, iyo inogona kunyatso kudzora kuumbwa kwe plasma gore.Iyo laser inogona kuita pane simbi zvakanaka kwazvo, uye basa raIye rakaderera, uye harina makemikari rinoita nesimbi.Iyo yakanaka kudzivirira gasi kune welding seams, asi mutengo waIye wakanyanya kukwirira.Kazhinji, zvigadzirwa zvekugadzira zvakawanda hazvishandise gasi iri.Anowanzo shandiswa kutsvagisa yesainzi kana zvigadzirwa zvine kukosha kwakanyanya kwakawedzerwa.
Hangao Tech (SEKO Machinery) ine anopfuura makore makumi maviri echiitiko mu Stainless simbi maindasitiri pombi kugadzira mutsetse chubhu kugadzira michina yekugadzira indasitiri.Iwo akakura R&D timu uye matekiniki egungano achaitisa yakazara yakazara debugging uye inodzokororwa ongororo pamutsetse wega wega wekugadzira usati watumirwa, kuitira kuti uwedzere michina.Deredza kushanda zvakanaka uye kuderedza kuoma kwekupedzisira kugadzwa uye kugadzirisa kune vatengi.
