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1. Ukuhlukaniswa nezici ze-physicochemical
| Ifomu lenhlangano | Okuvamile | Specific | Okujwayelekile |
| Uhlobo lomzimba we-Ferritic | 1. Ukumelana okuphezulu | 1 Ukumelana nokugqwala kwengcindezi okuhle kakhulu | 0Cr13(405) |
| 1Cr17(430) | |||
| Uhlobo lwe-Martensitic | 1. Ukuthambekela kokuqina kukhulu, futhi okuqukethwe kwekhabhoni kuyanda nayo. | 1Cr13(410) | |
| Uhlobo lwe-Austenitic | 1I-coefficient yokunwetshwa komugqa inkulu | 0Cr18Ni9(304) | |
| 0Cr19Ni11(308) | |||
| 0Cr23Ni13(309) | |||
| 0Cr25Ni20(310) | |||
| 0Cr17Ni12Mo(316) | |||
| 0Cr17Ni12Mo2Nb/Ti(318) | |||
| 0Cr19Ni13Mo3(317) | |||
| I-1Cr18Ni9Ti(321) | |||
| 0Cr18Ni11Nb(347) | |||
| 0Cr20Ni25Mo5Cu2(385) | |||
| I-O-iron duplex | 1. I-Intergranular corrosion resistance 2 ukucindezeleka ukumelana nokugqwala 3 ukumelana ne-pitting | I-00Cr22Ni5Mo3N(2205) | |
| Uhlobo lokuqina kwemvula | 1. Ukuqina okuphezulu 2 ipulasitiki empofu | 0Cr17Ni4Cu4Mo2(630) |
Uhlobo lomzimba we-Ferritic
Uhlobo lwe-Martensitic
Uhlobo lwe-Austenitic
Ukuqina kwemvula
Okwesibili: inqubo yokushisela
Ukukhethwa kwezinto zokuthungatha insimbi engagqwali kufanele kulandele isimiso esithi "homogeneity".
1. Insimbi engagqwali ye-Ferritic Uma inqubo yokushisela ishisa ku-430-480 ° C isikhathi eside futhi ipholile kancane, kulula kakhulu ukukhiqiza i-brittleness engu-475 ° C, futhi ukungcola kuzodlala indima ye-catalytic.Inqubo yokushisela incoma i-low current, i-welding esheshayo, i-oscillation, nokulawula izinga lokushisa eliphansi le-interlayer ngesikhathi sokushisela i-multilayer.Ukushisela ama-workpieces awugqinsi, umthungo we-weld kufanele ukhandwe ngesando ukuze unciphise ingcindezi yokuncipha.
2. Insimbi engagqwali ye-Martensitic ethinteke ekushiseni ethinteke ekushiseni indawo kanye nemifantu yokushisela ebandayo iyadingeka ukuze kugwenywe ngangokunokwenzeka lapho kushiswa, ngokuvamile thatha ukushisa okuhambisanayo ngaphambi kokushisela (150-300 °C) nokwelashwa kokushisa kwangemva kokushisela (700-750 ° C) izilinganiso, ukusetshenziswa kwamandla kalayini omkhulu, uma kunesidingo, ungakhetha izinto zokushisela ze-austenitic.
3. I-Austenitic stainless steel Izici ezinomthelela wokuqhekeka okushisayo nokugqwala kwe-intergranular yizona zinto ezicatshangelwayo zokushiselwa kwensimbi engagqwali enjalo, uma kubhekwa izici zayo ezibonakalayo, amandla amancane amugqa kufanele athathwe ukuze kushiswe, ukupholisa ngokushesha, kanye nezinga lokushisa eliphansi le-interlayer. kufanele ilawulwe lapho welding multilayer.Lwela ukuqukatha inani elifanele le-ferrite lapho ushisela ukuvimbela ukwenzeka kwemifantu eshisayo.Embonini ye-petrochemical efana ne-hydrogenation reactors neminye imikhiqizo ethile, inani lama-ferrites (FN) weld liye lashiwo ngokucacile, ngokuvamile lidingeka 3-10.
4. I-Austria-iron duplex steel stainless steel ine-crack tendency ephansi uma iqhathaniswa nensimbi ye-austenitic;Uma kuqhathaniswa nensimbi ye-ferritic, i-post-weld embrittlement iphansi, ngakho-ke inokushisela okuhle kakhulu, akukho ukushisa kwangaphambili noma ukufudumeza kwangemuva, futhi akukho mifantu yokushisela ekhiqizwayo.Kodwa-ke, lapho kushisa emazingeni okushisa aphezulu, kukhona ukuthambekela kokukhula okusanhlamvu, futhi amandla amancane omugqa kufanele athathwe lapho kushiselwa.
5. I-precipitation-hardened stainless steel Ngenxa yokuqina okuphezulu, ukuqina okungalungile kanye ne-plasticity yalolu hlobo lwensimbi, nokucindezeleka okukhulu kwe-welding residual, kulula ukukhiqiza imifantu.Kunconywa inqubo yokushisela efana nensimbi engagqwali ye-martensitic, kodwa izinga lokushisa langaphambi kokushisa lidinga ukunyuswa.
Qaphela:Izinga le-AWSA5.9 le-Stainless Steel Optical and Filler Wires kanye nezinga le-YB/T5092 le-Stainless Steel for Welding libeka ukuthi ukuhlaziywa kwamakhemikhali kwezibonelo ezincibilikisiwe zezintambo ezihlanganisiwe noma ezinezintambo noma intambo yokugcwalisa ukuphela kokuhlolwa okudingekayo ekuhlukaniseni lo mkhiqizo. amafomu.Okungukuthi, izakhiwo zemishini nezinye izivivinyo, ngokuya ngezidingo zamakhasimende.
Insimbi engagqwali yesandla sikagesi we-GES uchungechunge, uhlamvu lokugcina B egameni lomkhiqizo libonisa ijazi eliluhlaza okwesibhakabhaka, u-R ubonisa ijazi elibomvu, njenge-GES-308R imele ijazi elibomvu i-GES-308, i-GES-312B imele isikhumba sephilisi eliluhlaza GES-312 .
Isikhathi sokuthumela: Oct-13-2022