Pamene dzimbiri chifukwa cha mvula, chipale chofewa, chinyezi, ndi zina zotero, zomwe zimatchedwa kuti atmospheric corrosion, zimakhala ndi nkhawa pa ntchito yowotcherera, zitsulo zowonongeka nthawi zambiri zimakhala njira yabwino pa ntchitoyi. Zidazi zimakhala ndi zowonjezera zamkuwa, faifi tambala, ndi chromium zomwe zimathandizira kukonza kulimba kwa chitsulo mumlengalenga. Zotsatira zake, nyumba zachitsulo zomwe zimawonongeka nthawi zambiri zimasiyidwa zosapenta. Izi zimachepetsa kapena kuchotsa gwero la nthawi yowonjezereka ndi mtengo. Chifukwa zambiri mwa zidazi zimakhalanso ndi luso lamakina, zitsulo zanyengo zimagwiritsidwa ntchito popanga milatho ndi katundu wina-beari.ng zomangamanga.
Pamene dzimbiri kukana ndi nkhani nkhawa mwachindunjintchito kuwotcherera,
Weathering zitsulo ndi njiralingalirani.
Zitsulo zanyengo zimakhala ndi zowonjezera zazing'ono zamkuwa,nickel, ndi chromium.
Izi zimathandiza kuti chitsulocho chisawonongeke ndi zitsulo zomwe zili mumlengalenga.
Common weathering zitsulo specifications
Common weathering zitsulo zomwe zimagwiritsidwa ntchito popanga zomangamanga zikuphatikiza ASTM A242, A588, A606, ndi A847. Zodziwika bwino pakupanga mlatho ndi ASTM A709 ndi AASHTO M270. Opanga angapo amagwiritsanso ntchito mayina amalonda kuwonetsa ma patent awo apaderazopangidwa ndi zitsulo zanyengo, monga US Steel's COR-TEN®.
Kusankha filler zitsulo
PosankhaChitsulo choyenera chowotcherera zitsulo zowotcherera, pali zinthu zambiri zofunika kuziganizira:
• Ma code kapena zofunikira zomwe zilipo.
• Mphamvu ndi kulimba mlingo chofunika.
• Kumene kudzakhala chowotcherera komanso ngati chidzapakidwa penti.
• The olowa geometry ndi chofunika weld kukula.
• Kufanana kwamitundu.
PotsatiraZofunikira pamapangidwe, zizindikiro zowotcherera ndi mafotokozedwe amapereka malamulo osasweka omwe makontrakitala amayenera kutsata pakuwotcherera ndi kupanga zomwe zimaposa upangiri wina uliwonse waukadaulo. Mitundu iwiri yodziwika bwino yowotcherera zitsulo, American Welding Society (AWS) D1.1 ndi D1.5, imayang'anira zowotcherera zamapangidwe ndi mlatho. Zizindikirozi zimalongosola mwachindunji kugwiritsa ntchito zitsulo za nyengo ndikupereka njira zowotcherera zosiyanamalo ogwirira ntchito pazinthu izi.
MmodziChovuta chachikulu pakupanga kwa Corten ndi kusiyanitsa kowonekera: zowotcherera zoyambira nthawi zambiri zimawoneka zotuwa polimbana ndi chitsulo chofiirira cha matte. Kukwaniritsa'Kufananitsa Mitundu,'gwiritsani ntchito mkuwa-nickel-chromium-zokhala ndi zitsulo zokhala ndi zodzaza (zolembedwa ndi 'W' designator). Izi zimatsimikizira kuti weld ikukulapatina woteteza yemweyo ngati chitsulo choyambira pakapita nthawi.
Kufananiza mphamvu ndi kukana dzimbiri
Low alloy filler zitsulo zimapezeka ndi zolimba kwambiri komanso zopatsa mphamvu kuposa zitsulo za carbon steel filler, zomwe zimathandiza kuti zitsulo zodzaza ndi zitsulo zifanane ndi zitsulo zoyambira pamene mukuwotcherera-mphamvu zazitsulo zowoneka bwino, monga HPS 70W ya ndondomeko ya AASHTO M270.
Zitsulo zomwe zimagwiritsidwa ntchito mochepa-zodzaza ndi aloyi pazitsulo zolimbana ndi nyengo ndizomwe zimakhala ndi faifi tambala imodzi mwaperesenti. Aloyiyo imakhala yokwanira kuti musachite dzimbiri mumlengalenga mofanana ndi chitsulo chanyengo, ndipo mtengo wake ndi wocheperapo poyerekeza ndi zitsulo zina zotsika-zokhala ndi zovomerezeka. Opanga aloyi odziwika kwambiri omwe ali ndi gawo limodzi mwamagawo awa ndi Ni1 (formawaya) ndi C3 (ya maelekitirodi a ndodo), ngakhale opanga ena ambiri amawonetsa zitsulo zodzaza ndi faifi tambala okwanira kuwonjezera pa zinthu zina.
Kulinganiza kulimba, mtengo ndi kapangidwe ka aloyi
Filler zitsulos yokhala ndi nickel yapamwamba imatha kugwiritsidwa ntchito bwino. Atha kufunidwa muzinthu zina, chifukwa kuchuluka kwa nickel kumawonjezera kulimba. Komabe, mtengo wazitsulo zodzaza mafuta nthawi zambiri umakwera kwambiri ngati faifi tambala ndi aloyi wamba zimakweranso.
Copper-nickel-chromium-zochepa{3}}zitsulo zodzaza ndi aloyi zimakhala ndi aloyi. Izi ndizofanana ndi zitsulo zambiri za nyengo ndipo zimasonyezedwa ndi "W" alloy designator. Zitsulo zodzaza izi zimangogwiritsidwa ntchito pokhapokha ngati mitundu yofananira (yomwe yafotokozedwa pansipa) ndiyofunikira kwambiri. Komabe, zimakhala zokwera mtengo, nthawi zambiri sizipezeka mosavuta, ndipo zimakhala zovutirapo kuposa zodzaza zina.zitsulo.
| Welding Need | Analimbikitsa Filler Metal | Phindu Lofunika Kwambiri |
| General Structural | Ni1 (Waya) kapena C3 (Ndodo) | Mtengo-wogwira ntchito, wofanana ndi corrosion resistance |
| Zokongoletsa / Zomangamanga | "W" Designator (Cu-Ni-Cr) | Zofananira bwino zamtundu ndi mawonekedwe (Patina) |
| Kulimba Kwambiri | Ma Aloyi Apamwamba a Nickel | Kuchita bwino kwambiri-pamalo opsinjika kwambiri |
| SStandard Mphamvu | 80+ ksi Tensile / 60+ ksi Yield | Kufanana ndi -kupambana kwamphamvu kwanyengo |
Za most zomangira, zitsulo zotsika-zodzaza ndi aloyi zokhala ndi faifi tambala 1% (Ni1 kapena C3) zimateteza ku dzimbiri kokwanira pamtengo wotsika. Komabe, pama projekiti omwe ali-opsinjika kwambiri, zinthu za nickel zokwezeka zimalimbikitsidwa kuti zilimbikitse kulimba, ngakhale zitakhala kuti iimawonjezera mtengo wazitsulo zodzaza.
Zitsulo zodzaza-zofanana ndi mitundu
Potsirizira pakema welds onse amatengera patina, mosasamala kanthu kuti zitsulo za carbon kapena low alloy filler zitsulo zimagwiritsidwa ntchito. Komabe, zowotcherera pazitsulo zakunyengo zimawonekera kwambiri. Izi ndichifukwa cha kusiyana pakati pa zinthu zofiirira za matte ndi mtundu wonyezimira wa imvi wachitsulo chowotcherera. Muzinthu zina, monga ziboliboli kapena zina zomanga zokhala ndi zowotcherera pamaso pa anthu, ndikofunikira kuti mawonekedwe a weld agwirizane ndi zinthu zoyambira mumtundu komanso mawonekedwe posachedwa. Kuthekera kwa izi kuti zichitike mwachangu ndi mawonekedwe opanda msoko amadziwika kutikufananiza mitundu.
Mphamvu pa-machesi
Ambiri commzopezeka zotsika-zitsulo zodzaza ndi aloyi zowotcherera zitsulo zotentha zimapatsa 80-plus ksi tensile strength ndi 60-plus ksi yield strength. Koma these filler zitsulo ndi mopambanitsa (mphamvu kwambiri kuposa kufunikira) kwa zitsulo zoyambira zikagwiritsidwa ntchito powotcherera pa 50 ksi yield weathering steel.
Kuchulukitsa phindu
Kusankha appropriate filler zitsulo zimagwira ntchito yofunika kwambiri pakukwaniritsa zabwino zomwe zimaperekedwa ndi zitsulo zanyengo. Posankha zitsulo zodzaza, ganizirani mbali zonse za ntchito yowotcherera. Kuti mupeze zotsatira zabwino, ganizirani ma code, mphamvu, zofunikira zolimba, ndi zokongola. Mukakayikira, funsani akatswiri othandizira zitsulo opanga zitsulo. Ogwira ntchito awo atha kuthandizira kuzindikira zomwe zili patsamba lawo zomwe zingathandizekukulitsa ntchito yowotcherera ntchito.
Malangizo a Prokwa Outdoor Corten Welding:
- Kukonzekera Pamwamba:Nthawi zonse yeretsani malo owotcherera pa dzimbiri kapena sikelo iliyonse kuti muwonetsetse kulowa mkati.
- Kutsata Khodi:Onetsetsani kuti ndondomeko yanu ikutsatira AWS D1.1 kapena D1.5 pama projekiti ampangidwe kapena mlatho.
- Kuopsa Kwambiri:Samalani mukamagwiritsa ntchito-zodzaza mwamphamvu pazitsulo 50 ksi yield; "kuchulukana" kungayambitse kupsinjika kosafunika.
Kulimbana ndi CHallenges ndi Corten Fabrication?
Kusankha chodzaza choyenerachitsulo ndi kuwotcherera code n'kofunika kwambiri kukhulupirika kwa kapangidwe wanu. Kaya mukumanga mlatho wam'mphepete mwa nyanja kapena chosema cha anthu,Promisteelamakupatsirani ukatswiri komanso{0}mapepala apamwamba a Corten omwe mukufuna.
[Fufuzani Gulu Lathu Laukadaulo Kuti Muthandizire Kupanga Zinthu]
