Insimbi engagqwali ithatha igama layo kusukela ekhonweni layo lokumelana nokugqwala ngenxa yokusebenzisana phakathi kwezingxenye zayo zengxubevange nendawo ezichayeka kuyo. Izinhlobo eziningi zensimbi engagqwali zinezinjongo ezihlukahlukene futhi eziningi ziyagqagqana. Zonke izinsimbi ezingenasici zakhiwe okungenani i-chromium eyi-10%. Kodwa akuzona zonke izinsimbi ezingenasici ezifanayo.
I-Stainless Steel Grading
Uhlobo ngalunye lwensimbi engagqwali luyahlelwa, ngokuvamile luwuchungechunge. Lolu chungechunge luhlukanisa izinhlobo ezahlukene ze-stainless kusuka ku-200 kuya ku-600, nezigaba eziningi phakathi. Ngayinye iza nezakhiwo ezihlukile futhi iwela emindenini ehlanganisa:
- i-austenitic:okungewona uzibuthe
- i-ferritic: kazibuthe
- i-duplex
- ukuqina kwe-martensitic nemvula:amandla aphezulu kanye nokumelana okuhle nokugqwala
Lapha, sichaza umehluko phakathi kwezinhlobo ezimbili ezijwayelekile ezitholakala emakethe - 304 kanye ne-304L.
Thayipha 304 Stainless Steel
I-Type 304 yi-austenitic esetshenziswa kakhuluengenasiciinsimbi. Yaziwa nangokuthi "18/8" insimbi engagqwali ngenxa yokwakheka kwayo, okuhlanganisa u-18%i-chromiumkanye no-8%i-nickel. Insimbi engagqwali engu-304 inezakhiwo ezinhle zokwakha nezokushisela futhi iqinileukugqwalaukumelana namandla.
Lolu hlobo lwensimbi engagqwali nalo lunokudonseka okuhle. Ingakhiwa ibe yizinhlobonhlobo zomumo futhi, ngokungafani nohlobo 302 olungenasici, ingasetshenziswa ngaphandle kwe-annealing, ukwelashwa okushisa okuthambisa izinsimbi. Ukusetshenziswa okuvamile kohlobo 304 lwensimbi engagqwali kutholakala embonini yokudla. Ilungele ukuphiswa, ukucubungula ubisi, nokwenza iwayini. Ilungele futhi amapayipi, izitsha zemvubelo, izitsha zokuvutshelwa, namathangi okugcina
Insimbi engagqwali yohlobo lwe-304 nayo iyatholakala kusinki, phezu kwamatafula, amabhodwe ekhofi, eziqandisini, ezitofini, ezitsheni, nakwezinye izinto ezisetshenziswayo zokupheka. Iyakwazi ukumelana nokugqwala okungabangelwa amakhemikhali ahlukahlukene atholakala ezithelweni, enyameni nasebisini. Ezinye izindawo ezisetshenziswayo zihlanganisa izakhiwo, iziqukathi zamakhemikhali, izinto zokushintsha ukushisa, izinto zokusebenza zezimayini, kanye namantongomane asolwandle, amabhawodi nezikulufu. I-Type 304 iphinde isetshenziswe ezinhlelweni zokuhlunga zezimayini nezamanzi nasembonini yokudaya.
Thayipha 304L Stainless Steel
Uhlobo lwensimbi engu-304L inguqulo yekhabhoni ephansi kakhulu yensimbi engu-304ingxubevange. Okuqukethwe kwekhabhoni ephansi ku-304L kunciphisa imvula eyingozi noma eyingozi ye-carbide ngenxa yokushisela. I-304L, ngakho-ke, ingasetshenziswa “njengeshiselwe” endaweni enokugqwala okukhulu, futhi iqeda isidingo sokuhushula.
Leli banga linezakhiwo eziphansi kancane kunezinga le-304 elijwayelekile, kodwa lisasetshenziswa kabanzi ngenxa yokuguquguquka kwalo. Njengensimbi engagqwali ye-Type 304, ivamise ukusetshenziselwa ekwenzeni ubhiya nasekukhiqizeni iwayini, kodwa futhi ngezinjongo ezingaphezu kwemboni yokudla njengeziqukathi zamakhemikhali, izimayini, nezokwakha. Ilungele ukusetshenziswa ezingxenyeni zensimbi ezifana namantongomane namabhawodi avezwa emanzini anosawoti.
304 Izakhiwo Zomzimba Ezingenasici:
- Ukuminyana:8.03g/cm3
- Ukumelana nogesi:72 microhm-cm (20C)
- Ukushisa Okuthize:500 J/kg °K (0-100°C)
- I-Thermal conductivity:16.3 W/mk (100°C)
- I-Modulus of Elasticity (MPa):193x103ekushubeni
- Ibanga lokuncibilika:2550-2650°F (1399-1454°C)
Thayipha 304 kanye 304L Ukwakhiwa Kwensimbi Engagqwali:
| Isici | Thayipha 304 (%) | Thayipha 304L (%) |
| Ikhabhoni | 0.08 ubuningi. | 0.03 ubuningi. |
| IManganese | 2.00 ubuningi. | 2.00 ubuningi. |
| Phosphorus | 0.045 ubuningi. | 0.045 ubuningi. |
| Isibabule | 0.03 ubuningi. | 0.03 ubuningi. |
| I-silicon | 0.75 ubuningi. | 0.75 ubuningi. |
| I-Chromium | 18.00-20.00 | 18.00-20.00 |
| I-Nickel | 8.00-10.50 | 8.00-12.00 |
| I-nitrogen | 0.10 ubuningi. | 0.10 ubuningi. |
| Insimbi | Ibhalansi | Ibhalansi |
Isikhathi sokuthumela: Jan-15-2020