9.25 * 1.24mm ASTM A216 316/316L Stainless simbi yakakoswa tubing kubva kuChina

Kana welding 300 Series Stainless simbi, makondirakiti anogona kubvisa backflushing pamidzi majoini akazaruka akabatana pombi vachichengetedza yakakwirira weld mhando.
Welding yemachubhu esimbi isina tsvina uye pombi zvinowanzoda kudzoserwa kumashure neargon uchishandisa nzira dzechinyakare dzakadai segasi shielded tungsten arc welding (GTAW) uye shielded metal arc welding (SMAW).Asi mari yegesi uye nguva inotora kupedzisa nzira yekuchenesa inogona kuva yakakosha, kunyanya sezvo pombi madhayamita uye urefu hunowedzera.

Kana welding 300 Series Stainless simbi, makondirakiti anogona chinja kune yakagadziridzwa pfupi yedunhu simbi arc welding (GMAW) pane yechinyakare GTAW kana SMAW.Iyo yakagadziridzwa pfupi-yedunhu GMAW maitiro inopawo kuwedzera kuita, kushanda nesimba uye nyore-kwe-kushandisa mabhenefiti kubatsira kuwedzera purofiti.
Nekuda kwekuramba kwecorrosion uye simba, simbi isina simbi alloys anoshandiswa mumapombi akawanda epombi, kusanganisira mafuta negasi, petrochemical, uye biofuel maindasitiri.Nepo GTAW yagara ichishandiswa mumidziyo yakawanda yesimbi isina simbi, ine zvimwe zvayakaipira zvinogona kugadziriswa nepfupi dunhu rakagadziridzwa GMAW.
Chekutanga, nekuda kwekushomeka kuri kuramba kuripo kwevane hunyanzvi hwekuwelda, kutsvaga nyanzvi dzeGTAW idambudziko rinogara riripo.Chechipiri, GTAW haisiriyo inokurumidza kumhanyisa maitiro, izvo zvinoita kuti zviome kumakambani anoda kuwedzera chigadzirwa kuti asangane nezvinodiwa nevatengi.Chetatu, kurebesa uye kunodhura kumashure kwepombi dzesimbi isina tsvina uye pombi kunodiwa.
Purge ndiko kuunzwa kwegasi panguva yewelding kubvisa zvinosvibisa uye kupa rutsigiro.Back side purge inodzivirira kuseri kweweld kubva pakuumbwa kwemaokisi anorema pamberi peokisijeni.
Kana iyo yekuseri isina kuchengetedzwa panguva yemudzi canal welding, izvi zvinogona kukonzera kuputika kwezvinhu zvepasi.Chirema ichi chinozivikanwa seshugaring, chinopihwa zita nekuti nzvimbo iri mukati meweld yakafanana neshuga.Kuti udzivise shuga, welder anopinza gasi hose kune imwe mugumo wepombi, obva avhara magumo epombi nepurge plugs.Vakagadzirawo mhepo kune rumwe rutivi rwepombi.Ivo zvakare kazhinji taped kumativi seams.Mushure mekuchenesa pombi, vakabvisa chimedu chetepi chakatenderedza mubatanidzwa uye vakaenderera mberi nekushongedza, vachidzokorora kupfekenura uye kukwenenzvera kusvikira mudzi weld wapera.
Blowback inogona kudhura yakawanda yenguva nemari, mune dzimwe nguva ichiwedzera zviuru zvemadhora kupurojekiti.Kuchinjira kune yepamberi pfupi kutenderera GMAW maitiro akabvumira kambani kuita backflush-yemahara midzi inopfuura mune akawanda simbi isina tsvina.Welding 300 akatevedzana Stainless steels mukwikwidzi akanaka, ukuwo welding high pure duplex Stainless steels parizvino zvinoda GTAW yemidzi pass.
Kuchengeta kupisa kwekuisa kwakaderera sezvinobvira kunobatsira kuchengetedza corrosion resistance ye workpiece.Imwe nzira yekudzikisa kupisa kupinza ndeyekudzikisa huwandu hwewelding inopfuura.Iyo yakagadziridzwa pfupi-yedunhu GMAW maitiro senge inodzorwa simbi deposition (RMD®) inoshandisa chaizvo inodzorwa kufambisa simbi kuti ive nechokwadi chekudonhedza yunifomu.Izvi zvinoita kuti zvive nyore kune welder kudzora weld dziva, nekudaro kudzora kupisa kupinza uye welding kumhanya.Kupisa kushoma kupinza kunoita kuti bhati rakanyungudutswa riite chando nekukurumidza.
Nekuda kwekudzorwa kwesimbi kuchinjisa uye nekukasira kutonhora kwedziva re weld, iyo weld pool inoita shoma uye gasi rekudzivirira rinobuda muGMAW torch zvirinani.Izvi zvinobvumira kudzivirira gasi kumanikidzwa kuburikidza nemudzi wakashama, kumanikidza kunze kwemhepo uye kudzivirira saccharification kana oxidation pasi peiyo weld.Nekuda kwekuti chidziva chinoomesa nechando nekukurumidza, zvinotora nguva shoma kuti gasi rifukidze.
Kuedzwa kwakaratidza kuti yakagadziridzwa pfupi yedunhu GMAW maitiro anosangana neweld mhando zviyero uku ichichengetedza kugwinya kwesimbi isina tsvina senge uchishandisa GTAW yemidzi pass welding.
Welding yakavhurika midzi migero uchishandisa yakagadziridzwa pfupi wedunhu GMAW maitiro anogona zvakare kuunza mamwe mabhenefiti maererano nekubudirira, kugona, uye kudzidziswa kwewelder.
Shanduko mumagadzirirwo emagetsi anoda kuti makambani agadzirise maitiro avo, asi shanduko iyi inogona kubhadhara maererano nenguva uye mari yekuchengetedza - kune zvese kugadzirwa kutsva nekugadzirisa.
Welding yakavhurika midzi migero uchishandisa yakagadziridzwa pfupi wedunhu GMAW maitiro anogona zvakare kuunza mamwe mabhenefiti maererano nekubudirira, kugona, uye kudzidziswa kwewelder.Izvi zvinosanganisira:
Inobvisa mukana wematanho anopisa nekuda kwekugona kwekuisa simbi yakawanda kuwedzera kukora kwemudzi wegetsi.
Kupokana kwakanakisa kune yakakwirira uye yakaderera displacements pakati pombi zvikamu.Maitiro aya anogona nyore kuvhara mabhuroko anosvika 3⁄16 inches nekuda kwekufambisa kwesimbi.
Kureba kwearc nguva dzose kunochengetwa pasinei nekuwedzera kwe electrode, iyo inobhadhara vashandi vanonetseka kuchengetedza nguva dzose yekuwedzera urefu.Iyo yakawanda inodzorwa weld dziva uye inopindirana simbi shanduko inoderedza nguva yekudzidzira kune mawelder matsva.
Deredza nguva yekudzikira yekuchinja shanduko.Iyo imwechete waya uye yekudzivirira gasi inogona kushandiswa midzi, kuzadza uye nhovo inopfuura.Iyo pulsed GMAW process inogona kushandiswa chero nzira dzazadzwa uye dzakavharwa negasi rekudzivirira rine inokwana 80% argon.
Kune maoparesheni ekutsvaga kubvisa backflushing mustainless simbi maapplication, zvakakosha kutevedzera mashanu akakosha matipi ekubudirira kuchinjika kune yepamusoro pfupi yedunhu GMAW maitiro.
Geza mapaipi mukati nekunze kuti ubvise chero tsvina.Chenesa ingangoita 1 inch kubva kumucheto wefitting newaya bhurasho rakagadzirirwa simbi isina tsvina.
Shandisa yakakwira silicon isina simbi yekuzadza simbi yakadai se316LSi kana 308LSi.Iyo yepamusoro silicon yemukati inobatsira kunyorovesa iyo yekunyungudutsa yekugezera uye inoita se deoxidizer.
Kuti uwane mhedzisiro yakanaka, shandisa shield gasi musanganiswa wakanyatso kugadzirirwa maitiro, senge 90% helium, 7.5% argon, uye 2.5% carbon dioxide.Imwe nzira ndeye 98% argon uye 2% carbon dioxide.Welding gasi mutengesi anogona kunge aine mamwe mazano.
Kuti uwane mibairo yakanaka, shandisa cone tipi uye mudzi canal nozzle kune yakanangwa gasi kufukidzira.Conical nozzle ine yakavakirwa-mukati gasi diffuser inopa yakanakisa kufukidzwa.
Ziva kuti kushandisa yakagadziridzwa pfupi GMAW maitiro (hapana gasi rekuchengetera) kunokonzeresa marara mashoma kumashure kweweld.Iyo inowanzo bhururuka sezvo weld inotonhora uye inosangana nemhando yemhando yeindasitiri yemafuta, zvidyarwa zvemagetsi uye petrochemicals.
Jim Byrne mutengesi uye maneja wezvikumbiro weMiller Electric Mfg. LLC, 1635 W. Spencer St., Appleton, WI 54912, 920-734-9821, www.millerwelds.com.
Tube & Pipe Journal yakatangwa muna 1990 seyekutanga magazini yakatsaurirwa kuindasitiri yesimbi pombi.Kusvika nhasi, inoramba iri iyo yega indasitiri yakadhindwa muNorth America uye yave yakavimbika sosi yeruzivo kune nyanzvi dzemachubhu.
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