Iyini insimbi engagqwali?
Izinto zensimbi engagqwali azivamile nje kuphela ekuphileni kwethu kwansuku zonke, kodwa futhi zisetshenziswe kabanzi embonini esindayo, embonini ekhanyayo kanye nezicelo zemboni yezokwakha. Insimbi engagqwali emelana ne-asidi ibizwa ngokuthi insimbi engagqwali. Yakhiwe ngensimbi engagqwali kanye nensimbi engamelana ne-asidi. Ngamafuphi, insimbi ekwazi ukumelana nokugqwala komkhathi ibizwa ngokuthi insimbi engagqwali, kanti insimbi ekwazi ukumelana nokugqwala kwemithombo yamakhemikhali ibizwa ngokuthi insimbi engamelana ne-asidi. Izinhlobo zensimbi engagqwali ezivame ukusetshenziswa yi-304, 304L, 316, 316L, okuyizinsimbi ezingu-300 zensimbi engagqwali ye-austenitic. Usho ukuthini u-304, 304L, 316, 316L? Eqinisweni, lokhu kubhekisela ku-insimbi engagqwali izinga okusezingeni steel, amazinga amazwe ahlukene ahlukile, sicela ubheke ithebula elilandelayo ukuze uthole imininingwane.
304insimbi engagqwali
I-304 insimbi engagqwali iyinsimbi yendawo yonke futhi esetshenziswa kabanzi enokumelana nokugqwala okuhle, ukumelana nokushisa, amandla asezingeni eliphansi kanye nezakhiwo zemishini; ukusebenza kahle kokucubungula kanye nokuqina okuphezulu. Isetshenziswa kabanzi ukwenza imishini kanye nezingxenye ezidinga ukusebenza kahle okuphelele (ukumelana nokugqwala kanye nokwakheka). Iyakwazi ukumelana nokugqwala emkhathini. Uma kuyindawo yezimboni noma indawo engcoliswe kakhulu, idinga ukuhlanzwa kusenesikhathi ukugwema ukugqwala. Iyakwazi ukumelana nokugqwala emkhathini. Uma kuyindawo yezimboni noma indawo engcoliswe kakhulu, idinga ukuhlanzwa kusenesikhathi ukugwema ukugqwala. I-304 insimbi engagqwali iyinsimbi engenasici eyaziwa kuzwelonke yezinga lokudla.
316insimbi engagqwali
Umehluko omkhulu phakathi kuka-316 no-304 ekwakhiweni kwamakhemikhali ukuthi i-316 iqukethe i-Mo, futhi ngokuvamile kuyaqashelwa ukuthi i-316 inokumelana nokugqwala okungcono futhi imelana kakhulu nokugqwala ezindaweni ezishisa kakhulu kunokushisa kuno-304. Ingasetshenziswa ngaphansi kwezinga lokushisa eliqinile izimo; umsebenzi omuhle wokuqina (obuthakathaka noma ongewona uzibuthe ngemuva kokucubungula); non-magnetic esimweni sesisombululo esiqinile; ukusebenza kahle kwe-welding. Uhlu olubanzi lwezicelo, njengamakhemikhali, udayi, iphepha, i-oxalic acid, umanyolo nezinye izinto zokukhiqiza, imboni yokudla, izinsiza ezindaweni ezisogwini, ezikhethekileizihlungi zensimbi ezingenasicinjll.
“L”
Njengoba sonke sazi, i-Stainless steel iqukethe izakhi ezihlukahlukene, futhi izinsimbi ezinokuqukethwe kwe-carbide encishisiwe kunokuqukethwe okuvamile kuzoboniswa ngokungeza u-"L" ngemva kwebanga-elifana ne-316L, 304L.Kungani kufanele sinciphise ama-carbides? Ikakhulukazi ukuvimbela "ukugqwala kwe-intergranular". I-Intergranular corrosion, imvula yama-carbides ngesikhathi sokushiselwa kwezinsimbi ezisezingeni lokushisa eliphezulu, ibhidliza isibopho phakathi kwezinhlamvu zekristalu, kunciphisa kakhulu amandla ensimbi. Futhi ingaphezulu lensimbi ngokuvamile lisaphelele, kodwa alikwazi ukumelana nokungqongqoza, ngakho-ke ukugqwala okuyingozi kakhulu.
304Linsimbi engagqwali
Njengensimbi ene-carbon 304 ephansi, ukumelana kwayo nokugqwala kufana nalokho kwensimbi engu-304 ngaphansi kwezimo ezivamile, kodwa ngemva kokushisela noma ukukhululeka kwengcindezi, ukumelana kwayo nokugqwala kwe-intergranular kuhle kakhulu. Ingakwazi futhi ukugcina ukumelana nokugqwala okuhle ngaphandle kokwelashwa kokushisa futhi ingasetshenziswa ku- -196℃～800℃.
316Linsimbi engagqwali
Njengochungechunge lwekhabhoni ephansi yensimbi engu-316, ngaphezu kwezici ezifanayo njengensimbi engu-316, inokumelana nokugqwala okuhle kwe-intergranular. Ingasetshenziswa emikhiqizweni enezidingo eziphezulu ze-anti-intergranular corrosion, kanye nemishini yangaphandle embonini yamakhemikhali, amalahle, ne-petroleum, izitshalo zamakhemikhali nezinye izimboni. Ukuba sengozini okuphakeme kokugqwala kwe-intergranular akusho ukuthi izinto zekhabhoni ezingeyona ephansi zisengozini yokugqwala. Endaweni ene-chlorine ephezulu, lokhu kuzwela nakho kuphezulu. Okuqukethwe kwe-Mo kwe-316L kwenza insimbi imelane kahle nokugqwala kwe-pitting futhi ingasetshenziswa ngokuphepha ezindaweni eziqukethe ama-halogen ions afana ne-Cl-.
Isici sokuhlunga insimbi engenasici ye-HENGKO eyenziwe ngo-316 no-316L, inenzuzo yokumelana nezinga lokushisa eliphezulu, ukumelana nokugqwala okuhle, amandla aphezulu, nezixhumanisi zokuhlola eziqinile zekhwalithi ukuze kuqinisekiswe ukuthi ikhwalithi yemikhiqizo ephuma efektri idlula amasiko.
Nasi isiqhathaniso somehluko omkhulu ezakhiweni nezici zezinhlobo zensimbi engagqwali 304, 304L, 316, kanye no-316L:
| Isakhiwo/Isici | 304 | 304L | 316 | 316L |
|---|---|---|---|---|
| Ukwakheka | ||||
| Ikhabhoni (C) | ≤0.08% | ≤0.030% | ≤0.08% | ≤0.030% |
| I-Chromium (Cr) | 18-20% | 18-20% | 16-18% | 16-18% |
| I-Nickel (Ni) | 8-10.5% | 8-12% | 10-14% | 10-14% |
| I-Molybdenum (Mo) | - | - | 2-3% | 2-3% |
| Izakhiwo Zemishini | ||||
| Amandla Okuqina (MPa) | 515 imiz | 485 imiz | 515 imiz | 485 imiz |
| I-Yield Strength (MPa) | 205 imiz | 170 imiz | 205 imiz | 170 imiz |
| Ubude (%) | 40 imiz | 40 imiz | 40 imiz | 40 imiz |
| Ukumelana Nokugqwala | ||||
| Okujwayelekile | Kuhle | Kuhle | Okungcono | Okungcono |
| Izindawo ze-chloride | Kuphakathi | Kuphakathi | Kuhle | Kuhle |
| Ukuhleleka | Kuhle | Okungcono | Kuhle | Okungcono |
| Ukushisela | Kuhle | Kuhle kakhulu | Kuhle | Kuhle kakhulu |
| Izinhlelo zokusebenza | I-cookware, i-architectural trim, imishini yokucubungula ukudla | Iziqukathi zamakhemikhali, izingxenye ezishiselwe | Izindawo zasolwandle, amakhemikhali, imithi | Izindawo zasolwandle, ukwakhiwa okushiselwe |
1. Ukwakheka: I-316 ne-316L ine-molybdenum eyengeziwe ethuthukisa ukumelana nokugqwala, ikakhulukazi ezindaweni ze-chloride.
2. Izakhiwo Zemishini: Izinhlobonhlobo ze-'L' (304L kanye ne-316L) ngokuvamile zinamandla aphansi kancane ngenxa yokuqukethwe kwazo kwekhabhoni encishisiwe, kodwa zinikeza ukushisela okungcono.
3. I-Corrosion Resistance: 316 kanye ne-316L ziphakeme ekumelaneni nokugqwala uma kuqhathaniswa no-304 no-304L, ikakhulukazi ezindaweni zasolwandle neziphezulu ze-chloride.
4. Ukwakheka: Izinhlobonhlobo ze-'L' (304L kanye ne-316L) zinikeza ukwakheka okungcono ngenxa yokuncipha kokuqukethwe kwazo kwekhabhoni.
5. Ukushisela: Okuqukethwe kwekhabhoni encishisiwe ku-304L naku-316L kunciphisa ubungozi bemvula ye-carbide ngesikhathi sokushisela, kubenze bafaneleke kakhulu izinhlelo ezishiselwe kunozakwabo abangewona u-L.
6. Izicelo: Izicelo ezinikeziwe ziyizibonelo ezimbalwa nje, futhi uhlobo ngalunye lwensimbi engagqwali lungasetshenziswa kwezinye izinhlelo zokusebenza eziningi kuye ngezidingo ezithile.
Qaphela: Izakhiwo eziqondile zingahluka kuye ngomkhiqizi nezimo ezithile zokucubungula. Ngaso sonke isikhathi bheka imininingwane yemininingwane yomkhiqizi noma izindinganiso ukuze uthole imininingwane enembile.
Isici sokuhlunga insimbi engagqwali sinezimbotshana zomoya eziqondile, futhi izimbotshana zokuhlunga zifana futhi zisakazwa ngokulinganayo; Ukungena komoya okuhle, izinga lokugeleza kwegesi-uketshezi olusheshayo kanye nokuhlukana okusatshalaliswe ngokulinganayo. Kunezinhlobonhlobo zokucaciswa kosayizi nezinhlobo zesakhiwo ongakhetha kuzo, futhi kungenziwa ngokwezifiso ngokwezidingo. Ingxenye enentambo yensimbi engagqwali ihlanganiswe ngaphandle komthungo negobolondo eliphuma umoya, eliqinile futhi elingawi futhi lihle; ingase futhi yakhelwe ngokuqondile egobolondweni elingena umoya ngokubukeka okunomoya ogcwele futhi azikho izesekeli eziqinile ezengeziwe.
Ingabe udidekile mayelana nomehluko phakathi kwensimbi engagqwali 304, 304L, 316, kanye no-316L?
Ungakhathazeki, ithimba lethu lochwepheshe e-HENGKO lingakusiza uqonde umehluko futhi uthole inketho engcono kakhulu yephrojekthi noma isicelo sakho.
Xhumana nathinamuhla ukuze uqalise futhi uthathe isinyathelo sokuqala sokwenza isinqumo esinolwazi.
Isikhathi sokuthumela: Jun-04-2021
