Isishwankathelo seStainless Steel
Yenziwe ngentsimbi eshayinayo: Uhlobo lwensimbi eyaziwayo ngokuxhathisa ukugqwala kunye neempawu ezingabonakaliyo, eziqukethe ubuncinane i-10.5% ye-chromium kunye ne-carbon ephezulu ye-1.2%.
Intsimbi engatyiwa sisixhobo esisetyenziswa ngokubanzi kuwo wonke amashishini ahlukeneyo, idume ngokuxhathisa umhlwa kunye nokuguquguquka kwayo. Phakathi kwamanqanaba amaninzi ensimbi engenasici, i-304, i-304H, i-304L, kunye ne-316 zezona zixhaphake kakhulu, njengoko kuchaziwe kumgangatho we-ASTM A240/A240M we "Chromium kunye neChromium-Nickel Stainless Steel Plate, Sheet, kunye neStrip for Pressure Vessels and General izicelo.”
La mabakala mane akwinqanaba elifanayo lentsimbi. Ziyakwazi ukufakwa njenge-austenitic stainless steels esekelwe kwisakhiwo sazo kunye ne-300 series chromium-nickel steels stainless steels ngokusekelwe ekubunjweni kwazo. Umahluko ophambili phakathi kwabo ulele ekubunjweni kweekhemikhali, ukuxhathisa ukubola, ukumelana nobushushu, kunye neendawo zokusebenzisa.
I-Austenitic Stainless Steel: Ikakhulu yenziwe ngobuso obusembindini wesakhiwo sekristale ye-cubic (isigaba), engeyiyo imagnetic, kwaye iqiniswe ikakhulu ngokusebenza okubandayo (okunokuthi kubangele imagnetism). (GB/T 20878)
Ukubunjwa kweMichiza kunye nokuFaniswa kokuSebenza (ngokusekwe kwiMigangatho ye-ASTM)
304 Intsimbi engatyiwa:
- Ukuqulunqwa okuPhambili: Iqulethe malunga ne-17.5-19.5% ye-chromium kunye ne-8-10.5% ye-nickel, kunye nenani elincinci lekhabhoni (ngaphantsi kwe-0.07%).
- Iipropati zoomatshini: Ibonisa amandla okuqina okuhle (515 MPa) kunye nobude (malunga ne-40% okanye ngaphezulu).
I-304L yeNsimbi eNgatyiwayo:
- Ukuqulunqwa okuPhambili: Ngokufana ne-304 kodwa kunye nomxholo wekhabhoni oncitshisiweyo (ngaphantsi kwe-0.03%).
- Iipropati zoomatshini: Ngenxa yomxholo wekhabhoni ephantsi, amandla okuqina angaphantsi kancinci kune-304 (485 MPa), kunye nobude obufanayo. Umxholo wekhabhoni osezantsi uphucula ukusebenza kwawo welding.
304H intsimbi engatyiwa:
- Ukuqulunqwa okuPhambili: Umxholo weCarbon ngokuqhelekileyo usuka kwi-0.04% ukuya kwi-0.1%, kunye ne-manganese eyancipha (ehla ukuya kwi-0.8%) kunye ne-silicon eyongeziweyo (ukuya kwi-1.0-2.0%). I-Chromium kunye nomxholo we-nickel zifana ne-304.
- Iipropati zoomatshini: Amandla e-Tensile (515 MPa) kunye nobude bufana ne-304. Inamandla amahle kunye nokuqina kumaqondo okushisa aphezulu, okwenza ukuba ifaneleke kwiindawo eziphezulu zokushisa.
316 Intsimbi engatyiwa:
- Ukuqulunqwa okuPhambili: Iqukethe i-16-18% ye-chromium, i-10-14% ye-nickel, kunye ne-2-3% ye-molybdenum, kunye nomxholo wekhabhoni ongaphantsi kwe-0.08%.
- Iipropati zoomatshini: Amandla okuqina (515 MPa) kunye nobude (ngaphezulu kwe-40%). Inokumelana ne-corrosion ephezulu.
Kolu thelekiso lungasentla, kuyabonakala ukuba amabanga amane aneempawu ezifanayo kakhulu zoomatshini. Ukwahluka kulele ekubunjweni kwabo, okukhokelela ekuhlukeni kokumelana nokubola kunye nokumelana nokushisa.
I-Stainless Steel Corrosion Resistance kunye ne-Heat Resistance
Ukunyangwa koMhlwa:
- 316 Intsimbi engatyiwa: Ngenxa yobukho be-molybdenum, inokumelana ne-corrosion engcono kune-series ye-304, ngakumbi ngokuchasene ne-chloride corrosion.
- I-304L yeNsimbi eNgatyiwayo: Ngomxholo wekhabhoni ephantsi, ikwanayo nokumelana ne-corrosion, ifanelekile kwiindawo ezinobungozi. Ukumelana ne-corrosion yayo ingaphantsi kancinci kwi-316 kodwa ineendleko ezingaphezulu.
Ukumelana nobushushu:
- 316 Intsimbi engatyiwa: Ukubunjwa kwayo okuphezulu kwe-chromium-nickel-molybdenum kunika ukuchasana kobushushu obungcono kune-304 yensimbi engenasici, ngakumbi nge-molybdenum ephucula ukuchasana kwe-oxidation.
- 304H intsimbi engatyiwa: Ngenxa yekhabhoni ephezulu, i-manganese ephantsi, kunye nokwakheka kwe-silicon ephezulu, ikwabonisa ukuxhathisa okulungileyo kubushushu obuphezulu.
IiNdawo zeSicelo seNsimbi eStainless
304 Intsimbi engatyiwa: Ibanga elisisiseko elingabizi kakhulu neliguquguqukayo, elisetyenziswa ngokubanzi kulwakhiwo, ukuvelisa, kunye nokulungiswa kokutya.
I-304L yeNsimbi eNgatyiwayo: Inguqulo ye-carbon ephantsi ye-304, ilungele ubunjineli beekhemikhali kunye nolwandle, kunye neendlela ezifanayo zokucwangcisa ukuya kwi-304 kodwa ifaneleke ngakumbi kwiindawo ezifuna ukuxhathisa kwe-corrosion ephezulu kunye novelwano lweendleko.
304H intsimbi engatyiwa: Isetyenziswa kwii-superheaters kunye ne-reheaters yeebhoyila ezinkulu, imibhobho yomphunga, i-heat exchangers kwishishini le-petrochemical, kunye nezinye izicelo ezifuna ukuxhathisa okulungileyo kwe-corrosion kunye nokusebenza okuphezulu kobushushu.
316 Intsimbi engatyiwa: Ngokuqhelekileyo isetyenziswe kwi-pulp kunye nephepha lephepha, imboni enzima, ukuchithwa kweekhemikhali kunye nezixhobo zokugcina, izixhobo zokucoca, izixhobo zonyango kunye neyeza, izixhobo ze-oyile kunye negesi ye-offshore, iindawo zaselwandle kunye ne-cookware ephezulu.
Ixesha lokuposa: Sep-24-2024