Intsimbi engatyiwayo ithatha igama layo kwisakhono sayo sokuxhathisa ukurusa enkosi kunxibelelwano phakathi kwamalungu ayo omxube kunye nokusingqongileyo apho zichaneke khona. Iindidi ezininzi zensimbi engenasici zisebenza ngeenjongo ezahlukeneyo kwaye ezininzi ziyadibana. Zonke iintsimbi ezingenasici ziqulathe ubuncinci be-chromium eyi-10%. Kodwa ayizizo zonke iintsimbi ezingenasici ezifanayo.
UHlelo lweNsimbi eNgatyiwayo
Uhlobo ngalunye lwensimbi engenasici luhlelwa, ngokuqhelekileyo luluhlu. Olu chungechunge luhlula iintlobo ezahlukeneyo ze-stainless ukusuka kwi-200 ukuya kwi-600, kunye neendidi ezininzi phakathi. Nganye iza neepropati ezahlukileyo kwaye iwela kwiintsapho ezibandakanya:
- austenitic:non-magnetic
- i-ferritic: kazibuthe
- kabini
- martensitic kunye nemvula ukuqina:amandla aphezulu kunye nokuchasana okulungileyo kwi-corrosion
Apha, sichaza umahluko phakathi kweentlobo ezimbini eziqhelekileyo ezifunyenwe kwimarike - 304 kunye ne-304L.
Uhlobo lwe-304 yeNtsimbi eNgatyiwayo
Uhlobo lwe-304 lolona lusetyenziswa kakhulu i-austeniticengenabalaintsimbi. Ikwabizwa ngokuba yi "18/8" yentsimbi engatyiwayo ngenxa yokwakheka kwayo, ebandakanya i-18%.ichromiumkunye ne-8%nickel. Uhlobo lwe-304 yensimbi engenasici ineempawu ezintle zokubumba kunye ne-welding kunye nokomeleleumhlwaukumelana nokomelela.
Olu hlobo lwensimbi engenasici lukwanalo nokuzoba kakuhle. Inokubunjwa kwiimilo ezahlukeneyo kwaye, ngokungafaniyo nohlobo lwe-302 olungenasici, lunokusetyenziswa ngaphandle kwe-annealing, unyango olushushu oluthambisa isinyithi. Ukusetyenziswa okuqhelekileyo kohlobo lwe-304 yensimbi engenasici ifumaneka kwishishini lokutya. Ilungele ukwenziwa kwebhiya, ukwenziwa kobisi, nokwenza iwayini. Ikwalungele imibhobho, iipani zegwele, iivathi zokubilisa, kunye neetanki zokugcina
Uhlobo lwe-304 grade stainless steel lukwafumaneka kwiisinki, iitafile, iimbiza zekofu, iifriji, izitovu, izitya kunye nezinye izixhobo zokupheka. Iyakwazi ukumelana nomhlwa obangelwa yimichiza eyahlukahlukeneyo efumaneka kwiziqhamo, inyama nobisi. Eminye imimandla esetyenziswayo ibandakanya ulwakhiwo, imigqomo yeekhemikhali, izixhobo zokufudumeza ubushushu, izixhobo zemigodi, kunye namandongomane olwandle, iibholiti nezikrufu. Uhlobo lwe-304 lukwasetyenziswa kwimigodi kunye neenkqubo zokuhluza amanzi kunye nakwishishini lokudaya.
Uhlobo lwe-304L yeNtsimbi engagqwali
Uhlobo lwe-304L yensimbi engenasici yinguqulelo yekhabhoni engaphantsi kwe-304 yentsimbiingxubevange. Umxholo ophantsi wekhabhoni kwi-304L unciphisa i-carbide precipitation enobungozi okanye eyingozi ngenxa ye-welding. I-304L, ke ngoko, ingasetyenziswa “njengoko idityanisiweyo” kwindawo ezingqonge umhlwa, kwaye iyayisusa imfuno yokufunxa.
Eli bakala lineempawu zoomatshini ezisezantsi kancinci kunomgangatho oqhelekileyo wama-304, kodwa lisasetyenziswa ngokubanzi enkosi ngenxa yokuguquguquka kwalo. Njengentsimbi ye-Type 304, idla ngokusetyenziswa ekudidiyeleni ibhiya nasekwenzeni iwayini, kodwa nangeenjongo ezingaphaya koshishino lokutya olufana nezikhongozeli zeekhemikhali, imigodi kunye nolwakhiwo. Kukulungele ukusetyenziswa kwiindawo zetsimbi ezifana namantongomane kunye neebholiti ezivezwe kumanzi anetyuwa.
304 iiPropathi zoMzimba ezingenaStainless:
- Ubuninzi:8.03g/cm3
- Ukuxhathisa koMbane:72 microhm-cm (20C)
- Ubushushu obuthile:500 J/kg °K (0-100°C)
- I-Thermal conductivity:16.3 W/mk (100°C)
- Imodyuli yoKulula (MPa):193 x 103kuxinzelelo
- Uluhlu lokunyibilika:2550-2650°F (1399-1454°C)
Uhlobo lwe-304 kunye ne-304L yoKuqulunqwa kweNsimbi eNgatyiwayo:
| Isiqalelo | Uhlobo 304 (%) | Uhlobo 304L (%) |
| Ikhabhoni | 0.08 ubuninzi. | 0.03 ubuninzi. |
| IManganese | 2.00 ubuninzi. | 2.00 ubuninzi. |
| Iphosphorus | 0.045 ubuninzi. | 0.045 ubuninzi. |
| Isulfure | 0.03 ubuninzi. | 0.03 ubuninzi. |
| Isilicon | 0.75 ubuninzi. | 0.75 ubuninzi. |
| Chromium | 18.00-20.00 | 18.00-20.00 |
| Nickel | 8.00-10.50 | 8.00-12.00 |
| Nitrogen | 0.10 ubuninzi. | 0.10 ubuninzi. |
| Intsimbi | Ibhalansi | Ibhalansi |
Ixesha lokuposa: Jan-15-2020