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1. Ukuhlelwa kunye neempawu ze-physicochemical
| Ifomu yombutho | Eqhelekileyo | Ngokuthe ngqo | Isiqhelo |
| Uhlobo lomzimba weFerritic | 1. Ukuxhathisa okuphezulu | 1Uxinzelelo olugqwesileyo lokuxhathisa ukubola | 0Cr13(405) |
| 1Cr17(430) | |||
| Uhlobo lweMartensitic | 1. Ukuthambekela kokuqina kukhulu, kwaye umxholo wekhabhoni uyanda kunye nawo. | 1Cr13(410) | |
| Uhlobo lwe-Austenitic | 1I-coefficient yokwandiswa komgca inkulu | 0Cr18Ni9(304) | |
| 0Cr19Ni11(308) | |||
| 0Cr23Ni13(309) | |||
| 0Cr25Ni20(310) | |||
| 0Cr17Ni12Mo(316) | |||
| 0Cr17Ni12Mo2Nb/Ti(318) | |||
| 0Cr19Ni13Mo3(317) | |||
| 1Cr18Ni9Ti(321) | |||
| 0Cr18Ni11Nb(347) | |||
| 0Cr20Ni25Mo5Cu2(385) | |||
| I-O-iron duplex | 1. I-Intergranular corrosion resistance 2 uxinzelelo lwe-corrosion resistance 3 ukuchasana kwe-pitting | 00Cr22Ni5Mo3N(2205) | |
| Uhlobo lokuqina kwemvula | 1. Ubulukhuni obuphezulu 2 iplastiki engalunganga | 0Cr17Ni4Cu4Mo2(630) |
Uhlobo lomzimba weFerritic
Uhlobo lweMartensitic
Uhlobo lwe-Austenitic
Ukuqina kwemvula
Zimbini: inkqubo ye-welding
Ukukhethwa kwezinto ze-welding steel stainless kufuneka kulandele umgaqo we "homogeneity".
1. I-Ferritic steel stainless steel Ukuba inkqubo ye-welding ishushu kwi-430-480 ° C ixesha elide kwaye ipholile ngokukhawuleza, kulula kakhulu ukuvelisa i-475 ° C brittleness, kwaye ukungcola kuya kudlala indima yokuvuselela.Inkqubo ye-welding incoma i-low current, i-welding ekhawulezayo, i-oscillation, kunye nokulawula ubushushu obuphantsi be-interlayer ngexesha le-welding ye-multilayer.Ukuwelda izixhobo zokusebenza ezishinyeneyo, i-weld seam kufuneka ibethelwe ngehamile ukunciphisa uxinzelelo.
2. Martensitic stainless steel stainless ubushushu-echaphazelekayo zone embrittlement kunye ukuwelda iintanda ezibandayo kufuneka ukuphepha kangangoko kunokwenzeka xa ukuwelda, ngokubanzi ukuthatha preheating ehambelanayo phambi ukuwelda (150-300 °C) kunye post-welding ubushushu unyango (700-750 ° C) imilinganiselo, ukusetyenziswa kwamandla amakhulu omgca, ukuba kuyimfuneko, unokukhetha izixhobo ze-welding austenitic.
3. I-Austenitic stainless steel Izinto ezichaphazelayo zokuqhekeka okutshisayo kunye ne-intergranular corrosion yizona ngqalelo eziphambili zokudityaniswa kwensimbi enjalo engenasici, ngokujonga iimpawu zayo ezibonakalayo, amandla amancinci omgca kufuneka athathwe kwi-welding, ukupholisa ngokukhawuleza, kunye nobushushu obuphantsi be-interlayer. kufuneka ilawulwe xa iwelding multilayer.Zama ukuqulatha ubungakanani obufanelekileyo be-ferrite xa u-welding ukuthintela ukwenzeka kokuqhekeka kwe-thermal.Kwishishini le-petrochemical efana ne-hydrogenation reactors kunye nezinye iimveliso ezithile, inani le-ferrites (FN) ye-weld lichazwe ngokucacileyo, ngokubanzi lifunekayo i-3-10.
4. I-Austria-iron duplex steel stainless ine-low crack tendency xa kuthelekiswa nentsimbi ye-austenitic;Xa kuthelekiswa nentsimbi ye-ferritic, i-post-weld embrittlement iphantsi, ngoko ke ine-weldability egqwesileyo, i-preheating okanye i-post-heating, kwaye akukho zintanda ze-welding zenziwe.Nangona kunjalo, xa ukufudumala kumaqondo aphezulu, kukho ukuthambekela kokukhula okuziinkozo, kwaye umbane omncinci womgca kufuneka uthathwe xa udibanisa.
5. I-precipitation-hardened steel stainless Ngenxa yobunzima obuphezulu, ubunzima obuhlwempuzekileyo kunye neplastiki yolu hlobo lwentsimbi, kunye noxinzelelo olukhulu lwe-welding residual, kulula ukuvelisa iintanda.Inkqubo ye-welding efana ne-martensitic stainless steel iyacetyiswa, kodwa ukushisa kwangaphambi kokushisa kufuneka kwandiswe.
Phawula:UmGangatho we-AWSA5.9 weNtsimbi ye-Stainless Optical kunye neeNcingo zokugcwalisa kunye ne-YB/T5092 yoMgangatho weNtsimbi eNgatyiwayo ye-Welding imisela ukuba uhlalutyo lweekhemikhali zesampulu ezinyibilikisiweyo zocingo oludityanisiweyo okanye oluphothiweyo okanye ucingo lokuzalisa kuphela kovavanyo olufunekayo kuhlelo lwale mveliso. iifom.Oko kukuthi, iipropathi zoomatshini kunye nolunye uvavanyo, ngokweemfuno zabathengi.
Insimbi engenasici yesandla se-electrode ye-GES series, unobumba wokugqibela B kwigama lemveliso libonisa ingubo eluhlaza okwesibhakabhaka, i-R ibonisa ingubo ebomvu, njenge-GES-308R imele ingubo ebomvu i-GES-308, i-GES-312B imele isikhumba sepilisi eluhlaza GES-312 .
Ixesha lokuposa: Oct-13-2022