Ukuvelisa kunye noNyango lobushushu lweHastelloy B-2 Alloy.

1: Ukufudumeza Kwi-Hastelloy B-2 alloys, kubaluleke kakhulu ukugcina ubuso bucocekile kwaye bukhululekile kwizinto ezingcolileyo ngaphambi nangexesha lokufudumeza. IHastelloy B-2 iba brittle ukuba ishushu kwindawo enesulfure, iphosphorus, ilothe, okanye ezinye izingcolisi zesinyithi ezinyibilika kancinci, ikakhulu ukusuka kumanqaku okumakisha, ubushushu obubonisa ipeyinti, igrisi kunye nolwelo, umsi. I-flue gas kufuneka ibe nesulfure ephantsi; umzekelo, umxholo wesulfure wegesi yendalo kunye negesi yepetroleum engamanzi ayidluli i-0.1%, umxholo wesulfure womoya wasezidolophini awudluli i-0.25g/m3, kwaye umxholo wesulfure weoyile yepetroli awudluli kwi-0.5%. Imfuno yendawo yegesi yesithando sokufudumala yindawo engathathi hlangothi okanye indawo yokunciphisa ukukhanya, kwaye ayikwazi ukuguquguquka phakathi kwe-oxidizing kunye nokunciphisa. Idangatye esithandweni alinakuchaphazela ngokuthe ngqo i-Hastelloy B-2 alloy. Ngexesha elifanayo, izinto eziphathekayo kufuneka zifudunyezwe kwiqondo lokushisa elifunekayo kwisantya esiphezulu sokufudumeza, oko kukuthi, ukushisa kwesithando somlilo kufuneka kuphakanyiswe kwiqondo lokushisa elifunekayo kuqala, emva koko izinto kufuneka zifakwe kwisithando somlilo. .

I-2: I-Hot work Hastelloy B-2 i-alloy ingaba shushu isetyenzwe kuluhlu lwe-900 ~ 1160 ℃, kwaye kufuneka lucinywe ngamanzi emva kokucubungula. Ukuze kuqinisekiswe ukuxhathisa okugqwesileyo kokutya, kufuneka kufakwe i-annealed emva kokusebenza okushushu.

I-3: Ukusebenza okubandayo kweHastelloy B-2 ingxubevange kufuneka ifumane unyango lwesisombululo. Ekubeni inomlinganiselo ophezulu wokuqina womsebenzi kune-austenitic stainless steel, izixhobo zokubumba kufuneka ziqwalaselwe ngokucophelela. Ukuba inkqubo yokubumba ebandayo iyenziwa, i-interstage annealing iyimfuneko. Xa i-deformation yokusebenza ebandayo idlula i-15%, unyango lwesisombululo lufunekayo ngaphambi kokusetyenziswa.

I-4: Ukunyanga ukushisa Ukushisa kwesisombululo sokushisa kufuneka kulawulwe phakathi kwe-1060 ~ 1080 ° C, kwaye emva koko kupholiswe ngamanzi kwaye kucinywe okanye xa ubukhulu bezinto eziphathekayo bungaphezulu kwe-1.5mm, bunokukhawuleza bupholise umoya ukuze kufumaneke ukuxhathisa kwe-corrosion. Ngethuba naluphi na umsebenzi wokufudumeza, kufuneka kuthathwe amanyathelo okucoca ukucoca ubuso bezinto eziphathekayo. Ukunyangwa kobushushu bezinto ze-Hastelloy okanye izixhobo zezixhobo kufuneka zihlawulele ingqalelo kule miba ilandelayo: Ukuze kuthintelwe ukuguqulwa kokulungiswa kokushisa kwezixhobo zezixhobo, iindandatho zokuqinisa intsimbi kufuneka zisetyenziswe; ubushushu besithando somlilo, ukufudumeza kunye nexesha lokupholisa kufuneka kulawulwe ngokungqongqo; Yenza unyango lwangaphambili ukukhusela iintanda ze-thermal; emva kokunyanga ukushisa, i-100% ye-PT isetyenziswe kwiindawo eziphathwe ngobushushu; ukuba ukuqhekeka kwe-thermal kwenzeka ngexesha lonyango lobushushu, abo bafuna ukulungisa i-welding emva kokusila kunye nokuphelisa kufuneka bamkele inkqubo ekhethekileyo yokulungisa i-welding.

I-5: Ukunciphisa I-oxides phezu kwe-alloy ye-Hastelloy B-2 kunye namabala akufutshane ne-welding seam kufuneka iphuculwe ngevili elicolekileyo lokugaya. Ekubeni i-Hastelloy B-2 i-alloy inomdla kwi-oxidizing medium, igesi equkethe i-nitrogen eninzi iya kuveliswa ngexesha lenkqubo yokukhetha.

6: Machining Hastelloy B-2 ingxubevange kufuneka umatshini kwimo annealed, kwaye kufuneka ube nokuqonda ngokucacileyo umsebenzi wayo lukhuni. Umaleko oqinileyo kufuneka wamkele ireyithi yokutya enkulu kwaye ugcine isixhobo kwimeko yokusebenza eqhubekayo.

I-7: I-Welding ye-Hastelloy B-2 i-alloy weld metal kunye nendawo echaphazelekayo ukushisa kulula ukukhupha isigaba se-β kwaye iholele kwi-Mo ehlwempuzekileyo, ehambelana ne-intergranular corrosion. Ngoko ke, inkqubo ye-welding ye-Hastelloy B-2 alloy kufuneka yenziwe ngokucophelela kwaye ilawulwe ngokungqongqo. Inkqubo ye-welding jikelele ilandelayo: i-welding material yi-ERNi-Mo7; indlela ye-welding yi-GTAW; iqondo lokushisa phakathi kweengqimba zolawulo alikho ngaphezu kwe-120 ° C; ububanzi bocingo lwe-welding yi-φ2.4 kunye ne-φ3.2; i-welding yangoku yi-90 ~ 150A. Ngexesha elifanayo, ngaphambi kokuba i-welding, i-welding wire, i-groove yecandelo elidibeneyo kunye neendawo ezikufutshane kufuneka zihlanjululwe kwaye zihlanjululwe. I-thermal conductivity ye-Hastelloy B-2 alloy incinci kakhulu kuneyentsimbi. Ukuba i-groove enye efana ne-V isetyenzisiwe, i-angle ye-groove kufuneka ibe malunga ne-70 °, kwaye igalelo eliphantsi lokushisa kufuneka lisetyenziswe. Ukunyangwa kobushushu be-post-weld kunokuphelisa uxinzelelo olushiyekileyo kunye nokuphucula ukunyanzeliswa kwe-corrosion cracking.