0102030405
Insimbi engagqwali ephezulu ye-silicon corrosion ye-valve material
2023-02-11
Insimbi engagqwali engagqwali eqinile ye-valve yensimbi Leli zinga licacisa izidingo zobuchwepheshe, izindlela zokuhlola, imithetho yamasampula kanye nokuhlola, ukubeka uphawu, ukupakisha, ukugcinwa kanye nezidingo zokuhamba zensimbi esakazwayo eqinile ye-silicon engagqwali. Leli zinga lisebenza ku-silicon ephezulu ukumelana nokugqwala kwensimbi enokuqukethwe kwe-silicon engu-10, 00%~15. 00%. Imidwebo ekhombisa ukucaciswa, ubujamo nobukhulu, imiyalelo yokuhlanza i-casting, imidwebo ekhombisa izilinganiso eziyinhloko kanye nokunikeza konke ukubekezelela kwe-dimensional. Uma umfakisicelo ehlinzeka ngemodeli, usayizi wokulingisa kufanele uhambisane nosayizi obekelwe imodeli. Ukuthi ukuhlolwa kwe-hydraulic kuyadingeka, futhi uma kunjalo, ingcindezi yokuhlola kanye nokuvuza okuvumelekile kufanele kukhonjiswe. uhla Leli zinga licacisa izidingo zobuchwepheshe, izindlela zokuhlola, imithetho yamasampula kanye nokuhlola, ukubeka uphawu, ukupakisha, ukugcinwa kanye nezidingo zokuhamba zensimbi ejikijelwayo evikela ukugqwala kwe-silicon ephezulu. Leli zinga lisebenza ku-silicon ephezulu ukumelana nokugqwala kwensimbi enokuqukethwe kwe-silicon engu-10, 00%~15. 00%. Idokhumenti yesithenjwa Ejwayelekile Imigomo kumadokhumenti alandelayo iba imigomo yaleli Zinga ngokubhekisela kuleli Zinga. Ezicashunweni ezinedethi, zonke izichibiyelo ezilandelayo (ngaphandle kwe-erratum) noma izichibiyelo azisebenzi kuleli Zinga; nokho, abathintekayo esivumelwaneni ngaphansi kwaleli Zinga bayakhuthazwa ukuthi baphenye ukutholakala kwe-*** izinguqulo zala madokhumenti. Ezithenjwa ezingenasuku, izinguqulo zazo ziyasebenza kuleli zinga. Ulwazi lwe-oda Ulwazi olulandelayo lwe-oda luzohlinzekwa ngumfakisicelo: a) Inombolo evamile yokusetshenziswa. b) uhlobo oluphezulu lwe-silicon cast iron. c) Inani labalingiswa. d) Isisindo sokusakaza. e) Imidwebo ekhombisa ukucaciswa, ubujamo nobukhulu, imiyalelo yokuhlanza i-casting, imidwebo ekhombisa izilinganiso eziyinhloko futhi enikeza konke ukubekezelela kwe-dimensional. Uma umfakisicelo ehlinzeka ngemodeli, usayizi wokulingisa kufanele uhambisane nosayizi obekelwe imodeli. Izinketho zolwazi lwe-oda: a) Isimo sokwelashwa kokushisa kokusakazwa ngesikhathi sokulethwa; b) Ukuthi uzohlinzeka yini umfakisicelo umbiko wokuhlaziya ukwakheka kwamakhemikhali; c) Ukuthi kuyadingeka yini ukuhlolwa kokugoba; d) Ukuthi ukuhlolwa kwe-hydraulic kuyadingeka, futhi uma kunjalo, ingcindezi yokuhlola kanye nokuvuza okuvumelekile kufanele kukhonjiswe. e) Noma yikuphi ukupakishwa okukhethekile, ukumaka, njll. Indlela yokukhiqiza Ngaphandle uma kucaciswe ngenye indlela, indlela yokuncibilikisa kanye nenqubo yokufaka uhlaka kuzonqunywa Umphakeli. Imfuneko yobuchwepheshe Ibanga kanye nokwakheka kwamakhemikhali kwensimbi ejikijelwayo eqinile ye-silicon ephezulu ekwazi ukumelana nokugqwala Indlela yokusho yezinga yensimbi ejikijelwayo engagqwali ephezulu ye-silicon ivumelana nezinhlinzeko ze-GB/T 5612, ehlukaniswe amamaki amane. Ibanga lensimbi eqinile eliqinile elikwazi ukumelana nokugqwala kanye nokwakheka kwamakhemikhali ahambisanayo bheka Ukwamukelwa kwensimbi esakazwayo eqinile ye-silicon enokugqwala kuyoncika ekwakhekeni kwamakhemikhali ayo, okuzohambisana nezinhlinzeko zeThebula 1. Impahla yemishini Izakhiwo eziwumshini ze-silicon ephezulu emelana nokugqwala. insimbi ngokuvamile ayithathwa njengesisekelo sokwamukelwa. Uma kudingwa umfakisicelo, induku yokuhlola izovivinywa ukugoba ukuze kutholwe amandla ayo okugoba nokuchezuka, futhi imiphumela yokuhlolwa kufanele ihambisane nezinhlinzeko zeThebula 2. (2) I-silicon ephezulu ekwazi ukumelana nokugqwala iwuhlobo lwensimbi impahla yensimbi ephukayo, ekwakhiweni kwesakhiwo sokubunjwa kwayo akufanele kube uguquko olucijile futhi olucijile. Ijiyomethri nosayizi wokulingisa kuzohambisana nomdwebo noma izimfuneko zobuchwepheshe zomuntu ofuna ngenkani. Uma i-Demander ingenazo izimfuneko ezikhethekile ekubekezeleleni kobukhulu bokulingisa, izinhlinzeko ezifanele ze-GB/T 6414 zizolandelwa. I-castings kufanele ihlanzwe, isikwe "inyama" kakhudlwana, isuse isikhuphukeli esithelayo, ithambo lomgogodla, isihlabathi sobumba nezinsalela zomgodi wangaphakathi, njll. Okusele kokuthulula isikhuphukeli, umthungo ovalayo, isipikili esindizayo kanye nokuhlanzeka kwengaphakathi lokubunjwa kufanele kuhambisane nomdwebo. noma izidingo zobuchwepheshe zomthengi noma isivumelwano se-oda phakathi kwezinhlangothi ezimbili. Ngaphezulu: insimbi ejikijelwayo engavimbeli ukugqwala ephezulu ye-valve (I) Induku yokuhlola Ukuhlolwa okugobayo kwensimbi ejikijelwayo ekwazi ukumelana nokugqwala kwe-silicon kusebenzisa ibha yokuhlola eyodwa enobubanzi obungu-30mm nobude obungu-330mm ngaphandle komshini womshini. Ukucaciswa kwayo kukhonjiswe kuMfanekiso 1. Iyunithi: imilimitha Qaphela: Usayizi wokulingisa onconywayo webha yokuhlola kufanele upholiswe ube ngu-540℃ esibunjeni ngaphambi kokuwa kwesihlabathi, futhi ukucindezeleka okusalayo kufanele kususwe ngaphambi kokuhlolwa kokugoba. I-casting test rod eyodwa izothelwa eqoqweni elifanayo lensimbi ewuketshezi njengokuphonsa (amaphakheji ayisisekelo nawokugcina ngeke asetshenziswe). Esibunjeni esifanayo sokubunjwa, izinti eziningi zokuhlola zingathululwa ngesikhathi esifanayo, futhi inqubo yereferensi iboniswa kuMfanekiso 2. Iyunithi: imilimitha Ukubekezelela kweJiyomethrikhi nobukhulu be-silicon Insimbi engagqwali eqinile iwuhlobo lwensimbi ephukayo, futhi ebukhali. ukuguqulwa kwesigaba esiphambanayo akufanele kudingeke ekwakhiweni kwesakhiwo sokulingisa kwayo. Ijiyomethri nosayizi wokulingisa kuzohambisana nomdwebo noma izimfuneko zobuchwepheshe zomuntu ofuna ngenkani. Uma i-Demander ingenazo izimfuneko ezikhethekile ekubekezeleleni kobukhulu bokulingisa, izinhlinzeko ezifanele ze-GB/T 6414 zizolandelwa. Ukuchezuka kwesisindo Uma singekho isidingo esikhethekile sokuchezuka kwesisindo, izinhlinzeko ezifanele ze-GB/T 11351 zizolandelwa. Ikhwalithi engaphezulu Ubukhulu obungaphezulu bokulingisa buzohambisana ne-GB/T 6061.1 noma imidwebo yomfaki sicelo noma izidingo zobuchwepheshe. I-castings kufanele ihlanzwe, isikwe "inyama" kakhudlwana, isuse isikhuphukeli esithelayo, ithambo lomgogodla, isihlabathi sobumba nezinsalela zembobo yangaphakathi, njll. Okusele kokuthulula isikhuphukeli, umthungo ovalayo, isipikili esindizayo kanye nokuhlanzeka komgodi wangaphakathi wokulingisa kufanele kuhambisane nomdwebo. noma izidingo zobuchwepheshe zomthengi noma isivumelwano se-oda phakathi kwezinhlangothi ezimbili. Ukulimala kokusakaza Angeke kube khona iziphambeko zokulingisa ezinciphisa amandla futhi zilimaze ukubukeka komkhiqizo. Ukukhubazeka okuvumelekile kanye nendlela yokugqoka kuzovunyelwana ngamaqembu. Ukwelashwa kokushisa Insimbi ephezulu ye-silicon cast ngokuvamile isetshenziswa esimweni sokwelashwa kokushisa (ukususa ukucindezeleka okusele). Ngokulingisa okuncane komumo olula, uma kunikezwa njengokulingisi, zombili izinhlangothi kufanele zivumelane. Ama-castings azophathwa ngokushisa ukuze asuse ingcindezi esele. Uma lowo odingayo engenazo izidingo ezikhethekile, ukuphonsa kungenziwa ngalezi zindlela ezilandelayo: Ukwehla kwesihlabathi esimweni esishisayo esibomvu, susa ngokushesha konke ukumelana nemishini ekuncipheni kwamahhala kokuphonsa, ukuqeda ama-casting risers, ukuphonsa okubomvu okushisayo ngqo ekwelashweni kokushisa. isithando somlilo sishisa ngaphambili ngaphezu kuka-600 ℃, bese sifudumeza kancane, izinga lokushisa eliphansi lokwahlukanisa elingu-870 ℃. Ezingeni lokushisa elingaphezu kuka-870 ℃, ngokobukhulu obukhulu bodonga bokubunjwa, isikhathi sokugquma kufanele sibe ngu-1.h/25mm, kodwa isikhathi esincane sokufakelwa akufanele sibe ngaphansi kuka-2h. Bese ipholiswa ngesivinini esingeqile ku-55℃/15 min. Ipholiswe ku-205 ℃ ngesithando somlilo nomoya opholile ezingeni lokushisa elijwayelekile. Isidingo esikhethekile Uma umfakisicelo enezidingo zokuhlolwa kwezinhlayiya kazibuthe, ukuhlolwa kwe-ultrasonic, ukuhlolwa kwe-X-ray, njll., ofunayo kanye nomfakisicelo bazoxoxisana futhi basebenzise ngokuvumelana nezinhlinzeko ze-GB/T 9444, GB/T 7233 kanye ne-GB/T 5677 ngokulandelana. Indlela yokuhlola Ukuhlaziya amakhemikhali Izindlela ezivamile, ezibukwayo noma ezinye zezinsimbi ziyamukeleka kodwa kufanele zifane ukuze kukhiqizwe imiphumela efanayo. Izindlela ezijwayelekile zesampula zokuhlaziya amakhemikhali zizokwenziwa ngokuya nge-GB/T 20066. Ukuhlaziywa okuvunyiwe kwekhabhoni, i-silicon, i-manganese, isulfure ne-phosphorus ekwakhiweni kwamakhemikhali kubalwe ngokwe-GB/T 20123 noma i-GB/T 223.69,GB/ T 223.60, GB/T 223. 58 or GB/T 223. 64,GB/T 223. 3 or GB/T 223. 59 or GB/T 223. 61,GB/T 223. 53 Chrome, key, copper arbitration ukuhlaziywa kuzokwenziwa ngokuhambisana ne-GB/T 223.11 noma GB/T 223.12,GB/T 223.26,GB/T 223.18 noma GB/T 223.19 noma GB/T 223.53, ngokulandelana. Indlela yesampula ye-spectral yenziwa ngokuya nge-GB/T 5678 kanye ne-GB/T 14203. Indlela yokuhlaziya i-spectral izokwenziwa ngokuya nge-GB/T 20125.