Ubona i-Alloy 20 eshidini elithile, futhi umcabango wokuqala uvame ukuba yingxube ye-nickel engagqwali, uyihlanganise ne-Hastelloys ne-Inconel. Kuqala lapho ukwenza lula ngokweqile. Eqinisweni, ukuziphatha kwayo, ikakhulukazi ekukhiqizeni nasekukhiqizeni imishini, kuhlezi kulokhu okungaqondakali, ngezinye izikhathi okukhungathekisayo, okuphakathi. Ayikuthetheleli njengo-316L, kodwa ayikuyaleli inhlonipho eyeqisayo njenge-C-276. Ngibone amaphrojekthi ekhubeka ngokuphatha njengawo noma.
Iqiniso Lomsunguli: Ukushisela kanye Nokwakha Amanuances
Lapho ufunda khona ngempela ngengxubevange kusesitolo, hhayi kumininingwane. Nge-Alloy 20, inqubo yokushisela ibalulekile. Izinziswe nge-niobium, kodwa lokho akuyenzi ingavikeleki ekwazisweni uma unganakile ngokufaka ukushisa. Ngikhumbula inqwaba yezihloko ezakhiwe zesevisi ye-phosphoric acid lapho amashisela ayebukeka ekahle kodwa ehluleka ngaphambi kwesikhathi endaweni ethinteke ukushisa. Inkinga? Izinga lokushisa le-Interpass beliphezulu kakhulu. I-spec ithe gcina ngaphansi kuka-150°C, futhi abasebenzi bayekethisa, becabanga ukuthi i-nickel alloy ingayithatha. Ayikwazanga. Lokho okuhlangenwe nakho kwaqinisa lo mthetho: phatha umjikelezo wayo wokushisa ngesiyalo esifanayo njengoba ubungenza nge-alloy yangaphandle.
Ukwakheka kungenye iphuzu. Ine-ductility ehloniphekile, kodwa izinga layo lokuqinisa umsebenzi libalulekile. Uma wenza ukwakheka okubandayo, ingcindezi yamathuluzi idinga ukulungiswa uma kuqhathaniswa namamaki ajwayelekile e-austenitic. Kudingeke ukuthi siphinde sisike amaroli ukuze sithole igobolondo namashubhu okushintsha ukushisa kanye ngenxa yokuthi amaphasi okuqala abangele ukuqina okukhulu, okuholele kuma-microcracks ngesikhathi sokusikwa okulandelayo. Kuyinto edinga ukuthi uhlelele i-springback namandla akhulayo ngemva kwesinyathelo ngasinye sokuguqulwa.
Yilapho okuhlangenwe nakho kwe-Foundry kubalulekile. Uzakwethu onjengaye I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), kanye neminyaka yabo engamashumi amathathu ekulingiseni nasekukhiqizeni, ngokuvamile kunale mingcele edayiwe. ukutshala imali izinqubo ezinama-alloys afana nalawa, ukulawula izinga lokuqiniswa kanye nokwelashwa kokushisa kwangemva kokusakazwa akuxoxiswana ukuze kuzuzwe ukusatshalaliswa okufanele kwe-carbide futhi kugwenywe izindawo zokukhahlela zokugqwala zendawo.
Imishini: Ibhalansi Ethambile Yokuqina Ne-Gummy
Uma wenze kuphela izinsimbi ezingama-304 noma i-duplex, i-Alloy 20 izozizwa ihlukile. Akuyona into enzima kakhulu laphaya, kodwa iqinile. Ayiphuli i-chip ngokuhlanzekile; ijwayele ukwenza i-swarf ende, enezintambo ezingadala umonakalo uma ingalawulwa. Ukhiye ubukhali, ukusebenzisa i-positive-rake kanye nokuphakelayo okungaguquki, okumaphakathi nesivinini. Ukusikeka okunolaka kuholela onqenqemeni olwakhiwe kanye nokuqedwa kahle kwendawo.
Lokhu sikufunde ngomsebenzi we-pump shaft. Ukusebenzisa amapharamitha afanayo njenge-17-4PH engenabala kuholele ekugugeni kwamathuluzi ngokushesha kanye nendawo yejenali enemiphumela. Ukuhlehlisa isivinini, ukukhulisa okuphakelayo kancane (okuphikisayo, kodwa kusiza ekwephuleni ama-chip), kanye nokusebenzisa isibambisi se-lubricity ephezulu kwenze umehluko. Okubalulekile kunendlela yokukutshela uma unephutha.
Ezingxenyeni eziyinkimbinkimbi, kulapho kuhlanganiswe khona CNC imishini ikhono liba inzuzo enkulu. Umhlinzeki ophethe kokubili ukulingisa kanye nokwenza imishini yokuqeda, njengamasevisi achazwe kuwo tsngtaocnc.com, ingathuthukisa konke ukuhamba komsebenzi. Bangakwazi ukushiya izibonelelo zesitoko ezifanele kusukela esigabeni sokukhipha, bazi kahle ukuthi imishini yabo izobhekana kanjani nokusikeka kokugcina kule alloy ethize, begwema ingcindezi yokudlulisela ukusakaza okuphelile, okuqinile kwesinye isitolo somshini.
I-Special Alloy Context kanye Nokukhethwa Kwezinto Ezibalulekile
I-alloy 20 ivame ukuhlukaniswa ngaphansi kwama-alloys akhethekile, futhi kufanele. Kodwa kubalulekile ukuchaza ukuthi ikhethekile ngani. Indawo yayo emnandi yizindawo ze-sulfuric acid, ikakhulukazi lapho ama-chloride ekhona. Kuyindlela yokuya kuma-mix tanks, amapayipi, nokufakwa ekucutshungulweni kwamakhemikhali. Kodwa-ke, ngiyibonile isetshenziswa kabi ngokulindela ukumelana nendawo yonke. Ayilungele izimo ze-oxidizing noma i-hydrofluoric acid, isibonelo.
Ukuyikhetha kuvame ukwehlela ekuhlaziyweni kokusebenza kwezindleko ngokumelene nama-alloys e-nickel ephezulu. Kuphrojekthi eyodwa yesitshalo esimaphakathi esikhiqiza imithi, idizayini yokuqala yabiza i-Hastelloy C-22 yesistimu yonke ye-reactor. Ukubuyekezwa kwaphakamisa ukuthi ngezinga lokushisa elithile kanye nokugcwala kwe-sulfuric acid ekhona, Ingxubevange 20 yayingaphezu kokwanele. Iswishi ilondoloze izindleko ezinkulu zekhephithali ngaphandle kokufaka engozini impilo yesevisi. Lelo inani lokukhetha okunembayo, hhayi ukonga ngokweqile.
Lokhu kuhambisana nephothifoliyo ebalulekile yochwepheshe ofana ne-QSY. Umsebenzi wabo nge ama-alloys asekelwe ku-nickel futhi ama-alloys asekelwe ku-cobalt kusho ukuthi bayayiqonda le nqubo yokukhetha yezigaba. Abagcini ngokuthengisa insimbi; bavame ukuhileleka ekubonisaneni kusenesikhathi ukuze banqume ukuthi i-Alloy 20 ilingana kahle yini, noma uma izimo zesevisi zidinga isinyathelo sokukhuphukela kokuthile okuqinile, abangakunikeza futhi.
Ukucatshangelwa kokusakazwa: Ukuzwakala kanye Nemininingwane
Casting Alloy 20, ikakhulukazi nge ukubunjwa kwegobolondo noma ukutshala imali izindlela i-QSY egxile kuzo, iveza isethi yayo yezinselelo. Ingxubevange inephuzu lokuncibilika eliphakeme uma kuqhathaniswa nezici ezithile zokushwabana. Ukuze uthole umsindo, ukusakaza okuminyene okungenayo i-porosity noma izinyembezi ezishisayo, idizayini yesistimu yokuvala nokukhuphuka ibalulekile. Akuyona into yokuthela ukhohlwe.
Ngihlole imizimba yama-valve e-cast lapho ukugqwala kuqale khona kusuka emigodini enciphayo yangaphakathi ebingabonakali ku-RT. I-Foundry yayisebenzise umklamo okhuphukayo ofanele kangcono insimbi ye-carbon. Ukulungiswa kwakuhilela ukushintshela kuzikhuphukeli ze-exothermic ukuze kugcinwe insimbi incibilike isikhathi eside futhi ikhuthaze ukuqiniswa kokuqondisa. Ubungcweti bobunjiniyela bephethini ye-Foundry buhlolwe ngokuqondile lapha.
Inzuzo yokusebenza isikhathi eside umtapo wamaphethini afakazelwe kanye namasu abawakhayo. Ezingxenyeni eziphindaphindayo ezifana nama-pump casings noma ama-impeller ku-Alloy 20, le datha yenqubo yomlando ibaluleke kakhulu ekuqinisekiseni ukuvumelana kanye nekhwalithi ukusuka ekutheleni kokuqala kuye kwekhulu.
Ensimini: Iwashi Lesikhathi Eside
Ubufakazi bokugcina banoma yikuphi ukukhetha kwezinto ezibonakalayo kusesevisini. Izingxenye ze-alloy 20 zidinga ishejuli yokuhlola eyisisekelo, ikakhulukazi ezindaweni zokushisela nasezindaweni ezinokucindezeleka okukhulu. Sake salandelela isethi yamashubhu okushintsha ukushisa eminyakeni emihlanu. Okubalulekile komzali kwakungenasici, kodwa ukushisela okumbalwa kwe-tube-to-tubesheet kubonise izimpawu zokuhlasela okuncane kakhulu komugqa wommese. Akubanga ukwehluleka, kodwa kwagqamisa ukuthi ngisho nejoyinti elishiselwe kahle yilona phuzu elisengozini kakhulu. Isixazululo bekungekona ukushintsha ingxubevange, kodwa ukusebenzisa umthetho olandelwayo wokuhlola oqondiswe kakhulu kulawo malungu ngesikhathi sokuvalwa.
Iphinde futhi ibe nemishini emihle emazingeni okushisa aphakathi nendawo, kodwa awufuni ukuphusha amandla ayo okukhasa. Kumazinga okushisa aphezulu, imigqa yesibabule enengcindezi ephezulu, kungaba ukukhetha okungalungile. Futhi, kumayelana nokwazi umzila wayo.
Ekugcineni, ukusebenza ne-Alloy 20 kumayelana nokuhlonipha ubuntu bayo obuthile. Iwumsebenzi wobunjiniyela owusizo kakhulu ovala igebe elibalulekile phakathi kwezinsimbi ezingagqwali ezijwayelekile nama-premium nickel alloys. Kodwa inani layo libonakala ngokugcwele kuphela lapho uvuma ama-nuances ayo ekwenziweni, emishinini nasekusetshenzisweni kwayo. Akuyona impahla; iyithuluzi lokunemba. Futhi njenganoma yiliphi ithuluzi elinembayo, ukusebenza kwalo kuncike kakhulu ekhonweni labantu abacacisayo, ukulingisa, ukukhanda, nokulifaka njengoba lenza kumakhemikhali engxubevange ngokwayo.
