Inkcazo yensimbi engenasici
Emoyeni okanye kwimichiza ye-corrosion medium inokumelana nokubola kwentsimbi ephezulu yealloy, intsimbi engenasiphene iyindawo entle kunye nokumelana nokutyiwa kokutya, akufuneki ukuba ibekwe kunye nolunye unyango olungaphezulu, kwaye idlale iipropathi zendalo zentsimbi engatyiwayo, esetyenziswa ngaphakathi. imiba emininzi yohlobo lwentsimbi, edla ngokubizwa ngokuba yintsimbi engenasici.Egameni lomsebenzi wentsimbi ye-chromium eyi-13, i-18-chromium - insimbi ye-nickel kunye nezinye insimbi ephezulu ye-alloy.
Ukusuka kwimbono ye-metallographic, ngenxa yokuba insimbi engenasici iqulethe i-chromium kunye nomphezulu wokwakheka kwefilimu ye-chromium encinci kakhulu, ifilimu ihlukaniswe ne-oksijini ekuhlaselweni kwentsimbi yokumelana nokubola.Ukugcina ukuxhathisa kwe-corrosion ekhoyo kwinsimbi engenasici, intsimbi kufuneka ibe ne-chromium engaphezu kwe-12%.
Imbali yophuhliso lwensimbi engenasici
Isizathu sokuba isinyithi kunye nezixhobo zetsimbi zisetyenziswe ngokubanzi kungenxa yokuxinana kweediphozithi zentsimbi, ukugcinwa okukhulu, imigodi yezoqoqosho kunye nokunyibilika, kunye nokubanda okunamandla kunye nobushushu obunamandla bentsimbi kunye nentsimbi egqityiweyo.Iimveliso ezigqityiweyo zineempawu ezibalaseleyo zoomatshini (amandla, iplastiki kunye nokuchasana kwempembelelo) kunye neempawu ze-machining (ukusika, i-welding, i-deformation ebandayo, njl.).Kodwa xa kuthelekiswa nemathiriyeli ye-asilicic acid, iipolymer synthetic materials kunye nezinye iintsimbi ezingezizo i-ferrous, eyona ngxaki inkulu kukuba: kwiatmosfera okanye iasidi, ialkali, ityuwa kunye nezinye iimeko zemidiya, kulula ukunciphisa umzimba ngenxa yokudleka, kunye nokutshabalalisa ngokupheleleyo.
Iindidi zentsimbi engenasici
Insimbi engenasici ingahlelwa ngokusetyenziswa, ukubunjwa kweekhemikhali kunye nesakhiwo se-metallographic.
Intsimbi ye-austenitic yenziwe nge-18% ye-chromium -8% ye-nickel, kwaye ubungakanani bento nganye yahlukile, ukuze kuphuhliswe iintlobo ezahlukeneyo zentsimbi.
Ukwahlula ngokwemichiza: ①Cr series: i-ferrite series, i-Martensite system series ②Cr-Ni series: i-Austenite system series, i-abnormal series, i-precipitation hardening series.
Ukuhlelwa kolwakhiwo lwemetallographic: (1) iaustenitic stainless steel, (2) ferritic stainless steel, (3) martensitic steel stainless, (4) duplex steel stainless, (5) imvula eyenza lukhuni intsimbi engatyiwayo.
Ixesha lokuposa: Jan-10-2022