Intsimbi engagqwali eqhelekileyo engatshiyo ixhathisa ubushushu ngokubanzi yahlulwe yaba ziintlobo ezintathu, i-309S, i-310S kunye ne-253MA, intsimbi engatshiyo ixhathisa ubushushu idla ngokusetyenziswa ekwenzeni iibhoyila, iiturbine zomphunga, izitofu zoshishino kunye neenqwelo-moya, iipetrochemical kunye nezinye iindawo zoshishino kwiindawo zokusebenza ezinobushushu obuphezulu.
1.Ii-309s: (OCr23Ni13) ipleyiti yentsimbi engagqwaliyo
Iimpawu: Ingamelana nokufudumeza okuphindaphindiweyo ngaphantsi kwama-980 ℃, inamandla aphezulu obushushu, ukumelana nokuxinana kwe-oxidation kunye nokumelana ne-carburizing.
Ukusetyenziswa: izinto ze-furnace, zingasetyenziselwa ukwenza iindawo zentsimbi eshushu, umxholo wazo ophezulu we-chromium kunye ne-nickel uqinisekisa ukumelana okuhle nokugqwala kunye nokumelana ne-oxidation.
Xa ithelekiswa ne-austenitic 304 alloy, inamandla kancinci kubushushu begumbi. Ebomini bokwenyani, inokufudunyezwa ngokuphindaphindiweyo kwi-980 ° C ukuze iqhubeke isebenza kakuhle. 310s: (0Cr25Ni20) ipleyiti yentsimbi engagqwaliyo.
2.Ii-310s: (OCr25Ni20) ipleyiti yentsimbi engagqwaliyo
Iimpawu: Intsimbi engenasici ye-chromium-nickel austenitic ephezulu eneempawu ezintle zoomatshini ezinobushushu obuphezulu kunye nokumelana okuhle nokugqwala kwi-oxidizing media. Ifanelekile ukuvelisa izinto ezahlukeneyo ze-furnace, ubushushu obuphezulu yi-1200 ℃, ubushushu bokusetyenziswa okuqhubekayo yi-1150 ℃.
Isicelo: izinto zesithando somlilo, izixhobo zesixhobo sokucocwa kweemoto.
Intsimbi engagqwaliyo ye-310S yintsimbi engagqwaliyo ye-austenitic engagqwaliyo enokuxhathisa kakhulu ukugqwala esetyenziswa kwiindawo ezahlukeneyo zobushushu obuphezulu kunye nokugqwala. Lukhetho oluhle kakhulu lokusetyenziswa kumashishini e-petrochemical, chemical, kunye nonyango lobushushu, kunye nezixhobo ze-furnace kunye nezinye izicelo zobushushu obuphezulu. Ipleyiti yentsimbi engagqwaliyo ye-310S yishiti ethe tyaba, ebhityileyo eyenziwe ngolu hlobo luthile.
3.Ipleyiti yentsimbi engagqwaliyo engu-253MA (S30815)
Iimpawu: I-253MA yintsimbi engagqwaliyo yase-Austenitic engatshiyo eyenzelwe usetyenziso olufuna amandla aphezulu okurhubuluza kunye nokumelana okuhle nokugqwala. Ubushushu bayo bokusebenza buyi-850-1100 ℃.
I-253MA luhlobo oluthile lwe-alloy yentsimbi engagqwali eyenzelwe ukusetyenziswa kubushushu obuphezulu. Inika ukumelana okuhle kakhulu ne-oxidation, i-sulfidation, kunye ne-carburization kubushushu obuphezulu. Oku kuyenza ifaneleke ukusetyenziswa kumashishini ahlukeneyo, kuquka lawo aquka ubushushu kunye nokugqwala, njengamacandelo e-petrochemical, ukuveliswa kwamandla, kunye ne-industrial furnace.Amaphepha angama-253MA ziingceba ezincinci, ezithe tyaba ezenziwe ngolu hlobo lwentsimbi. Asetyenziswa kwizicelo ezahlukeneyo apho ukuhlanganiswa kokumelana nobushushu obuphezulu kunye nokumelana nokugqwala kubalulekile. Amaphepha anokunqunyulwa aze enziwe abe ziimo ezahlukeneyo ukuze kuhlangatyezwane neemfuno ezithile zeprojekthi.
Amaphepha angama-253MA, iiPlates Ulwakhiwo lweekhemikhali
| Ibanga | C | Cr | Mn | Si | P | S | N | Ce | Fe | Ni |
| 253MA | 0.05 – 0.10 | 20.0-22.0 | Ubuninzi obuyi-0.80 | 1.40-2.00 | Ubuninzi be-0.040 | Ubuninzi be-0.030 | 0.14-0.20 | 0.03-0.08 | Ibhalansi | 10.0-12.0 |
Iipropati zoomatshini zePlate ye-253MA
| Tensile strength | Amandla okuVuna (0.2%I-Offset) | Ukwandiswa (kwiisentimitha ezi-2) |
| I-Psi: 87,000 | I-Psi 45000 | 40% |
Ipleyiti ye-253MA Ukumelana nokugqwala kunye nendawo yokusetyenziswa ephambili:
1. Ukumelana nokugqwala: I-253MA ine-oxidation egqwesileyo, ukumelana nokugqwala kumaqondo obushushu aphezulu, kunye namandla amangalisayo oomatshini kumaqondo obushushu aphezulu. Isebenza ngokukodwa kumanqanaba obushushu angama-850 ukuya kwi-1100°C.
2. Uluhlu lobushushu: Ukuze isebenze kakuhle, i-253MA ilungele ukusetyenziswa ngaphakathi koluhlu lobushushu oluphakathi kwe-850 ukuya kwi-1100°C. Kubushushu obuphakathi kwe-600 kunye ne-850°C, utshintsho lwesakhiwo lwenzeka, nto leyo ekhokelela ekunciphiseni ukuqina kwempembelelo kubushushu begumbi.
3. Amandla Oomatshini: Le ngxubevange idlula iintsimbi eziqhelekileyo ezingenasici, ezifana ne-304 kunye ne-310S, ngokubhekiselele kumandla okutsalwa kwexesha elifutshane kumaqondo obushushu ahlukeneyo ngaphezulu kwe-20%.
4. Ulwakhiwo lweKhemikhali: I-253MA inolwakhiwo lwekhemikhali olulinganiselayo oluyinika ukusebenza okugqwesileyo kuluhlu lobushushu obuyi-850-1100°C. Ibonisa ukumelana okuphezulu kakhulu kwe-oxidation, imelana namaqondo obushushu afikelela kwi-1150°C. Ikwanika ukumelana okuphezulu kwe-creep kunye namandla okuqhekeka kwe-creep.
5. Ukumelana Nokugqwala: Ukongeza kwizakhono zayo zobushushu obuphezulu, i-253MA ibonakalisa ukumelana okugqwesileyo nokugqwala okushushu okuphezulu kunye nokugqwala kwebrashi kwiindawo ezininzi ezinegesi.
6. Amandla: Inamandla aphezulu okuvelisa kunye namandla okuxinana kumaqondo obushushu aphezulu.
7. Ukwakheka kakuhle kunye nokudityaniswa: I-253MA yaziwa ngokukwazi kwayo ukwakheka kakuhle, ukudityaniswa kakuhle, kunye nokusebenza kakuhle koomatshini.
Ixesha lokuthumela: Okthobha-09-2023