I-15CrMoG isiqinisekiso somgangatho wentsimbi yombhobho woxinzelelo oluphezulu
Umbhobho wensimbi we-15CrMoG luhlobo lombhobho wensimbi ongenamthungo, kwaye ukusebenza kwawo kuphezulu kakhulu kunombhobho wentsimbi oqhelekileyo ongenamthungo. Kuba olu hlobo lombhobho wentsimbi luqulathe ngakumbi i-Cr, ukuxhathisa ubushushu obuphantsi, ukumelana nobushushu obuphantsi kunye nokumelana nomhlwa akunakuthelekiswa neminye imibhobho yentsimbi engenamthungo, ngoko umbhobho wealloyi usetyenziswa kakhulu kwipetroleum, kwishishini lemichiza, amandla ombane, kwibhoyila kunye namanye amashishini. .
Umgaqo wokuhlanjululwa kwe-hydrogen nge-15CrMoG ipayipi yensimbi kukuba xa i-hydrogen ukuba ihlanjululwe ifakwe kwelinye icala le-15CrMoG ipayipi yensimbi kwi-300-500 ℃, i-hydrogen idsorbed eludongeni lwepayipi yensimbi ye-15CrMoG. Ngenxa yokunqongophala kwee-electron ezimbini kwi-4D ye-electron layer ye-palladium, inokwenza iibhondi zeekhemikhali ezingazinzanga kunye ne-hydrogen (impendulo phakathi kwe-palladium kunye ne-hydrogen iyabuyiswa). Ngaphantsi kwesenzo se-palladium, i-hydrogen i-ionized kwiiprotoni kunye ne-radius ye-1.5 × 1015m, ngelixa i-lattice constant of palladium yi-3.88 × 10-10m (nge-20 ℃), inokudlula kwipayipi yensimbi ye-alloy ye-15CrMoG. Ngaphantsi kwesenzo se-palladium, iiprotoni zidibanisa nee-electron kwaye zenze kwakhona iimolekyuli ze-hydrogen, eziphuma kwelinye icala le-alloy yensimbi ye-15CrMoG. Phezulu kumbhobho wensimbi ye-alloy ye-15CrMoG, igesi engabonakaliyo ayikwazi ukudlula, ngoko ke i-15CrMoG ipayipi yensimbi ye-alloy ingasetyenziselwa ukufumana i-hydrogen ephezulu.
Nangona i-palladium ine-permeability ekhethekileyo kwi-hydrogen, i-palladium ecocekileyo ineempawu ezimbi zoomatshini, i-oxidation elula kwiqondo lokushisa eliphezulu kunye nobushushu obuphantsi be-recrystallization, ekulula ukuyilungisa kunye nokukhupha umbhobho wensimbi we-15CrMoG. Ke ngoko, i-palladium ecocekileyo ayinakusetyenziswa njengenwebu yokungena. Ukongeza inani elifanelekileyo lezinto ze-IB kunye ne-VIII kwi-palladium ukwenza i-palladium alloy inokuphucula iimpawu zemishini ye-palladium. 11. Umbhobho wentsimbi ongenamthungo wemoto wesiqingatha se-axle sleeve (gb3088-82) yintsimbi ekumgangatho ophezulu wekhabhoni yolwakhiwo kunye nolwakhiwo lwentsimbi yentsimbi eshushu-eqengqelekayo ingenamthungo yombhobho wokwenza inqwelo-mafutha yomkhono wesiqingatha se-asi kunye nendlu ye-axle yokuqhuba. Kwi-alloy palladium, i-akhawunti yesilivere malunga ne-20-30%, kunye nomxholo wezinye izinto (ezifana negolide, njl.) Ingaphantsi kwe-5%.
① Iidijithi ezimbini ekuqaleni kwebakala lensimbi zimela umxholo wekhabhoni yensimbi, echazwe njengamawaka ambalwa omxholo wekhabhoni, njenge-40Cr.
②Izinto eziphambili ze-alloying kwintsimbi, ngaphandle kwezinto ezixutywe nge-microalloyed, zibonakaliswa ngokubanzi ngeepesenti ezimbalwa. Xa umxholo we-alloy ophakathi ungaphantsi kwe-1.5%, ngokubanzi kuphela isimboli se-elementi siphawulwe kwibakala lentsimbi, kodwa umxholo awuphawulwanga. Nangona kunjalo, ukuba kulula ukudideka phantsi kweemeko ezikhethekileyo, inombolo "1" inokumakishwa emva kwesimboli sento, njengamabakala ensimbi "12CrMoV" kunye ne "12Cr1MoV". Umxholo we-chromium wangaphambili ngu-0.4-0.6%, kwaye okokugqibela ngu-0.9-1.2%, kwaye amanye amacandelo ayafana. Xa umxholo oqhelekileyo wezinto ze-alloy ≥ 1.5%, ≥ 2.5%, ≥ 3.5%... Umxholo uya kuboniswa emva kwesimboli se-element, esinokubonakaliswa njenge-2, 3, 4 ... njl njl. 18Cr2Ni4WA.
③I-Vanadium V, i-titanium Ti, i-aluminiyam i-Al, i-boron B, i-RE enqabileyo yomhlaba kunye nezinye izinto ze-alloy kwintsimbi ziyinxalenye ye-microalloyed elements. Nangona umxholo uphantsi kakhulu, kufuneka zisaphawulwe kwibakala lentsimbi. Ngokomzekelo, kwintsimbi ye-20mnvb. I-0.07-0.12% ye-vanadium kunye ne-0.001-0.005% ye-boron.
④ Intsimbi ekumgangatho ophezulu iya kuphawulwa "a" ekupheleni kwebakala lentsimbi ukuhlula kwintsimbi yezinga eliphezulu.
⑤Kwi-alloy structural steel for special purpose, ibakala lensimbi lilandelwa (okanye isimamva) ukumela isimboli senjongo yentsimbi. Umzekelo, intsimbi ye-30CrMnSi ye-riveting screw imelwe njenge ml30crmnsi.
Umbhobho we-alloy kunye nombhobho ongenamthungo unobudlelwane kunye nokwahlukana, kwaye awukwazi ukudideka. Umbhobho we-alloy luhlobo lombhobho ongenamthungo. Nangona ingenakuxutywa, umbhobho ongenamthungo uquka umbhobho wealloyi.
Umbhobho we-alloy uchazwa njengombhobho wensimbi ngokwemathiriyeli yokuvelisa (okt imathiriyeli). Njengoko igama libonisa, ngumbhobho owenziwe nge-alloy; Umbhobho ongenamthungo uchazwa ngokwenkqubo yokuvelisa umbhobho wentsimbi (umthungo ongenamthungo). Yintoni eyahlukileyo kumbhobho ongenamthungo ngumbhobho ongenamthungo, kuquka umbhobho odityanisiweyo othe ngqo kunye nombhobho ojikelezayo.