Umahluko phakathi kwe-304 kunye ne-316 yensimbi engenasici

Ekuthengeni iimveliso zensimbi ezingenasici, amagama aqhelekileyo angenasici alandelwa ngamanani angama-304 okanye angama-316, la manani mabini abhekisela kumzekelo wensimbi engenasici, kodwa umahluko phakathi kwensimbi engenasici 304 kunye ne-316, kunzima ukuthetha.Namhlanje, siya kuhlukanisa ezi zimbini ngokweenkcukacha kwimbono yokwakheka kweekhemikhali, ukuxinana, ukusebenza, imimandla yesicelo, njl., kwaye ukholelwa ukuba uya kuba nokuqonda okucacileyo kwezi ntlobo zimbini zensimbi engenasici emva kokuzifunda.

#304 insimbi engenasici # kunye ne-316 insimbi engenasici i-austenitic stainless steel, umahluko phakathi kwezi zimbini kwimichiza: I-316 insimbi engenasici iphucula i-nickel (Ni) ngokunciphisa umxholo we-chromium (Cr), kwaye yandisa i-2% -3% molybdenum (Mo ), esi sakhiwo siphucula kakhulu ukuxhatshazwa kwe-corrosion kunye nokugqoka ukuxhathisa kwensimbi engenasici, ngoko ukusebenza kwe-316 insimbi engenasici ingcono kune-304 insimbi engenasici.

Oku kulandelayo ngumahluko phakathi kwama-304 kunye nama-316:

1. Izithako

Ukubunjwa kwe-304 yensimbi engenasici yenziwe nge-chromium ye-18% kunye ne-nickel ye-8%;Ukongeza kwi-chromium kunye ne-nickel, i-316 insimbi engenasici nayo ine-2% ye-molybdenum.Amacandelo ahlukeneyo nawo abenza bahluke ekusebenzeni.

2. Ukuxinana

Ubuninzi bentsimbi engama-304 yi-7.93g/cm³, ubuninzi bentsimbi engama-316 yi-7.98g/cm³, kwaye ubuninzi bentsimbi engama-316 bungaphezulu kobo bentsimbi engama-304.

3. Ukusebenza okwahlukileyo:

I-element ye-molybdenum equlethwe kwi-316 insimbi engenasici yenza ukuba ibe nokumelana nokugqwala okuhle kakhulu, kwezinye izinto ezine-acidic, izinto ze-alkaline, kodwa kunye nokunyamezela, aziyi kugqwala.Ngoko ke, ukuxhathisa kwe-corrosion ye-304 yensimbi engenasici ngokwemvelo ingcono kune-316 yensimbi engenasici.

4. izicelo ezahlukeneyo:

I-304 insimbi engenasici kunye ne-316 insimbi engenasici zizinto zebakala lokutya, kodwa ngenxa yokuba i-316 inokumelana nokugqwala okungcono kunye nokumelana ne-asidi kunye ne-alkali, iya kusetyenziswa ngakumbi kwezinye izixhobo zonyango kunye namanye amasimi, ngelixa i-304 insimbi engenasici isetyenziswa ngakumbi ekhitshini. njengezinto zetafile, ikhitshi, iitafile zensimbi ezingenasici njalo njalo.

5. ixabiso lahlukile:

Ukusebenza kwe-316 insimbi engenasici iphezulu, ngoko ixabiso libiza kakhulu kune-304 yensimbi engenasici.

Ezi zimbini zineempawu zazo, kwaye indlela yokukhetha ixhomekeke kwimfuno yangempela.Nangona i-304 insimbi engenasici ayinayo intsebenzo ephezulu ye-316, ukusebenza kwayo kwanele ukuhlangabezana neemfuno zemihla ngemihla, kwaye ixabiso layo libiza kakhulu, ngoko libiza kakhulu.Ukuba kukho imfuno ephezulu yokusetyenziswa, ke i-316 insimbi engenasici ingakhethwa ukuba ihlangabezane kangcono neemfuno zeso sihlandlo.

Shwankathela iimpawu zokusebenza kwezi zimbini, intsimbi engatyiwayo engama-304 yokumelana ne-asidi, ukuxhathisa kwe-alkali, ukuxinana okuphezulu, ukugulisa ngaphandle kwamaqamu, ukuqina okuphezulu, ukusebenza kakuhle kokusebenza;Ukongeza kwiimpawu zentsebenzo ye-304 yensimbi engenasici, i-316 insimbi engenasici iphinda ixhathise kwi-corrosion ekhethekileyo ephakathi, enokuphucula ukunyanzeliswa kwe-corrosion kwiikhemikhali ze-hydrochloric acid kunye nolwandle, kunye nokuphucula ukuxhathisa kwe-corrosion kwisisombululo se-halogen ye-brine.