Uma uzwa 'I-Incoloy 825', into yokuqala evame ukufika engqondweni 'ukumelana nokugqwala' - futhi lokho kulungile, kodwa futhi kuwugibe oluncane. Emkhakheni, ikakhulukazi ezitolo ezifana nezethu eziphatha kokubili ukulingisa nokunemba kwemishini, idumela lengxubevange lingaholela ekwenziweni lula ngokweqile. Akuyona nje inhlamvu yemilingo yesevisi emuncu noma i-nitric acid; ukuziphatha kwayo ngesikhathi sokukhiqiza, kusukela phansi kuya emshinini we-CNC, ichaza inani layo langempela. Ngibone imiklamo eminingi kakhulu icacisa ngekhanda, ngaphandle kokucabangela amaqiniso okwenziwa. Ukwakheka okuphezulu kwe-nickel-chromium-molybdenum-copper kukunika amandla okubhoboza nokugqwala kwengcindezi, kodwa leyo recipe iyenza isilo esihlukile ukusebenza naso uma kuqhathaniswa no-316L ojwayelekile. Yileli gebe phakathi kwemininingwane neshabhu engilithola libaluleke kakhulu.
Ukusuka ku-Melt kuya ku-Mold: Ukusakaza I-Incoloy 825 Akuqondile
Umuzwa wethu we-Foundry, ikakhulukazi nge-shell mold kanye nezinqubo zokutshala izimali esisebenza kuzo I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), usifundise ukuthi ama-nickel alloys afana Ikholomu 825 ukufuna inhlonipho kusukela esinyathelweni sokuqala. Umkhuba wokuncibilika ubalulekile. Awukwazi ukukhokhela izinto ze-tramp; ngisho nokungcoliswa komthofu omncane noma isibabule kungalimaza ukusebenza okushisayo. Sigcina izimiso eziqinile zezimonyo zokushaja, ngokuvamile sisebenzisa ukubuyiselwa kwezinga eliphezulu kanye nokuxutshwa kwezinto ezingabalulekile ukuze silawule ikhemistri ngokuqinile. Umgomo uwukushaya leyo ndawo emnandi: Ni ~42%, Cr ~21.5%, Mo ~3%, Cu ~2.2%, kanye nokuhlanganisa kwe-Ti okuzinzile. Kuphuthelwe, futhi izakhiwo zokugqwala ozikhokhelayo zingase zingabi khona.
Isici sokuqina singelinye iphuzu. Akuyona ingxubevange ewuketshezi kakhulu uma ithelwa. Ekwenziweni kokutshalwa kwezimali, kudingeke ukuthi silungise amazinga okushisa okushisa kuqala kumagobolondo ethu e-ceramic futhi silungise izinhlaka zokuthela ukuze sigweme ama-mistruns ezingxenyeni ezincane noma izinyembezi ezishisayo kwezisinda kakhulu. Kuyisenzo sokulinganisa - kushisa kakhulu, futhi usengozini yokukhula okusanhlamvu ngokweqile kanye nokushwabana okuncane; kupholile kakhulu, futhi ukugcwalisa akuphelele. Lena akuyona into oyifunda encwadini; iqoqwa ngokulingwa futhi, ngokungananazi, izinsalela ezibizayo phakathi neminyaka. Sake saba nenqwaba yemizimba yama-valve eyayibonisa i-micro-porosity ngaphansi kokuhlolwa kwe-radiographic, ilandelelwa emuva ekushiseni okuncane okuthelwe phezu kwamanzi okwakubonakala kulungile ku-carbon steel kodwa kwakungaphezu komugqa wama-825.
Ukwelashwa kokushisa kwangemuva akuxoxiswana. Isakhiwo se-as-cast sine-homogeneous futhi silayishwe izingcindezi eziyinsalela. Umjikelezo wokuvala isixazululo esifanele, ngokuvamile uzungeze u-°F olandelwa ukucisha ngokushesha, ubalulekile ukuze kuqedwe izigaba zesibili futhi kukhishwe ukwakheka okufanayo kwe-austenitic. Ukweqa lokhu noma ukwenza isimo somlilo sibe singalungile (i-oxidizing vs. protective) kungashiya ingxenye isengozini yokuhlaselwa kwe-intergranular kamuva. Senze amaphrofayili ethu esithandweni afane futhi sisebenzisa amashadi okurekhoda emisebenzini ebalulekile - ukuphela kwendlela yokuqinisekisa ukuvumelana.
I-Machining Headache: Lapho Ithiyori Ihlangana Nomzila Wamathuluzi
Uma ukuyiphonsa kudinga ukunakekelwa, umshini Ikholomu 825 yilapho inselelo yangempela iqala khona esitolo se-CNC. Yilapho imodeli yethu ehlanganisiwe ikhona QSY ikhombisa ukubaluleka kwayo. Awukwazi ukuvele uphonse uhlelo olujwayelekile lwensimbi engagqwali kuyo. I-alloy isebenza - iqina ngokushesha futhi ngobudlova. Ukufakwa okubuthuntu kancane noma izinga lokuphakelayo elinganele lizodala isendlalelo esiqinile ngaphansi kokusikwa, kwenze okulandelayo kube isihogo kumathuluzi futhi kubeke engcupheni ubuqotho obungaphezulu bengxenye.
Ukukhetha ithuluzi yikho konke. Sithuthele cishe ngokukhethekileyo kuma-substrates e-carbide e-premium-grade anezingubo ezikhethekile (okusekelwe ku-AlTiN ngokuvamile kusebenza kahle) ukuze kuqiniswe futhi kuqedwe. Amajiyometri eharika amahle ayadingeka ukuze kuncishiswe amandla okusika kanye nokuqina komsebenzi. Ukupholisa akukona nje ukupholisa; iwukugcoba ukusiza i-chip isuke. Sisebenzisa amasistimu wokupholisa anengcindezi ephezulu, ngethuluzi ukuze siqinisekise ukuthi ifika onqenqemeni oluphambili. Ngikhumbula umsebenzi wokulungisa amakheshi ephampu amakhulu lapho ekuqaleni sasebenzisa amapharamitha ethu ajwayelekile we-duplex stainless. Sidlule kumasethi amathathu okufaka endaweni eyodwa. Ukulungisa? Kwehlise i-SFM cishe ngo-25%, kwenyusa okuphakelayo ngezinyo ngalinye, futhi kwaqinisekisa ukuqina okuphelele ekusetheni. Ngokuphazima kweso, ukufakwa kwathatha ukushintsha okugcwele, futhi ukuqedwa kwangaphezulu kwaba ngcono kakhulu.
Ukubhoboza nokuthepha kungamaphuzu athile obuhlungu. Ukumba i-Peck kuyimpoqo, ngokuhlehla okugcwele ukuze kususwe ama-chip futhi kunqamuke umjikelezo wokuqinisa umsebenzi. Ngokuthepha, sivamise ukucacisa ompompi aba-spiral-fluted abaklanyelwe izinto eziqinile futhi sisebenzisa okuphakelayo okuvumelanayo ku-CNC ukugwema ukushiselwa kwe-chip. Umsebenzi ohamba kancane, onendlela yokwenza. Isibalo sezomnotho siyashintsha sisuka ekwandiseni isikhathi sokusebenza somshini siye ekwandiseni impilo yamathuluzi nengxenye yekhwalithi. Ukuyiphuthuma kuyindlela eqinisekile yokulahlekelwa imali ezingxenyeni ezilahliwe kanye namathuluzi acekeleke phansi.
Ukushisela kanye Nokwenziwa: Indida Yokujoyina
Ngenkathi umnyombo wethu uku https://www.tsingtaocnc.com i-casting and machining, sivame ukuhlinzeka ngezingxenye ezidinga ukuhlanganiswa nezakhiwo ezinkulu ezishiselwe. Ngakho, ukuqonda ukushisela kuyingxenye yesevisi. Ikholomu 825 kubhekwa njengokushisela, kepha kunezixwayiso ezinkulu. Ukhiye uvimbela imvula ye-carbide endaweni ethinteke ukushisa (HAZ).
Sihlala sincoma ukusebenzisa izinsimbi ezifanayo zokugcwalisa, njenge-ERNiFeCr-1 noma ama-electrode e-ENiFeCr-1. Ukushisa kwangaphambi kwesikhathi akudingekile, kodwa ukulawula izinga lokushisa kwe-interpass kubalulekile – ukukugcina kungaphansi kuka-150°C kuyasiza. Iphutha elikhulu esilibone amakhasimende elenza ukusebenzisa izinqubo ezifanayo zokufaka ukushisa okuphezulu azisebenzisela i-carbon steel. Leyo yindlela eqinisekisiwe yokudala i-HAZ ebanzi, eqwashisiwe. Ukufakwa kokushisa okuphansi, ubuhlalu bezintambo, nokupholisa ngokushesha abangani be-welding engu-825. Ukwelashwa kokushisa kwangemva kokushisela akukhona okuvamile ngaphandle kwalapho udinga ukukhulula izingcindezi zokuzinza kohlangothi kusevisi eqinile, kodwa uma wenza kanjalo, kubuyela kulowo mjikelezo wesisombululo.
Inkinga eyodwa esebenzayo ukushisela okuhlukile. Ukujoyina i-825 kuya ku-carbon steel kuvamile emishinini egqoke izingubo noma imibhobho. Lapha, udinga isendlalelo se-buttering, ngokuvamile esine-nickel alloy filler, ukuvimbela ukufuduka kwekhabhoni kusuka ensimbi kuya ku-825, okungadala indawo ephukile. Kuyimininingwane okulula ukungayinaki emdwebeni kodwa eyinhlekelele enkonzweni.
Ukushintsha Kwezinto Ezibalulekile kanye Nocupho Okwanele Oluvaliwe
Kumaphrojekthi angabizi kakhulu, kuhlala kunengcindezi yokucabangela ezinye izindlela. Kwesinye isikhathi, kuphakanyiswa u-316L nge-Mo eyengeziwe, noma ingxubevange engu-20. Yilapho ukukhetha kwempahla kuba okwangempela. Kithina, akukhona nje mayelana namakhemikhali; imayelana nemvilophi yokusebenza.
I-alloy 20 inokumelana kangcono ne-sulfuric acid kodwa ayiqinile ezindaweni ze-chloride Ikholomu 825. I-Hastelloy C-276 iphakeme ngama-oxidizing chloride kodwa iza ngezindleko eziphakeme kakhulu. I-matrix yesinqumo ibandakanya ukugxila kwe-ion ethile, izinga lokushisa, i-pH, kanye nokuba khona kwama-oxidizing agents. Silethelwe izingxenye ezihlulekile ngaphambi kwesikhathi ngenxa yokuthi othile ubeke ingxubevange efanayo ngaphandle kokuqonda ngokugcwele indawo yesevisi - ngokuvamile isistimu yamanzi okupholisa eyayinama-chloride angalindelekile noma umfudlana wenqubo onama-trace fluoride aphathwa kangcono ngu-825.
Indima yethu ivama ukuxoxisana. Iklayenti lingase lisithumele i-spec yengxenye ye-825. Ngokuxoxa ngokusebenza kwangempela - amazinga okushisa, imidiya, imijikelezo yokucindezela - ngezinye izikhathi singaqinisekisa ukukhetha noma, ezimweni ezingavamile, siphakamise impahla engabizi kakhulu uma imvelo ithambile. Kepha kaningi kunalokho, uma i-spec ibiza i-825, kunesizathu esihle, esinokhahlo sayo. Ukufaka esikhundleni ngobumpumputhe ithrekhi esheshayo eya ekuhlulekeni kwenkambu.
Ukuqinisekisa Ikhwalithi: I-Paper Trail iyingxenye yomkhiqizo
Ngomsebenzi ofana nalokhu, isitifiketi sokuthobelana asiwona umkhuba; kuwumongo okulethwayo. We source yethu Ikholomu 825 kusukela ezigayweni ezinedumela elihle futhi ngokuvamile zenza ukuqinisekiswa kwesibili. Umkhuba ojwayelekile wezingxenye ezibalulekile ukuthumela ikhuphoni ukusuka ekushiseni okufanayo ukuya elebhu yenkampani yangaphandle ukuze uthole ukuhlaziya okugcwele kwekhemikhali emanzi. Kungani? Ngoba izitifiketi zokugaya zivela ekuhlaziyweni kwe-ladle. Ikhemistri yomkhiqizo wokugcina ingashintsha kancane, futhi ku-825, kancane kokuqukethwe kwe-Ti noma i-C kungabaluleka.
I-NDT nayo inyusiwe. Ngokulingisa, sivamise ukwenza ukuhlola kokungena kokudaya ngokulimala kwendawo. Ezingxenyeni eziqukethe ingcindezi, ukuhlolwa kwe-radiographic kujwayelekile. Izindawo ezenziwe ngomshini zivame ukuhlolelwa ukuqina komsebenzi noma ukuklebhula. Le QA eqinile isukela eqinisweni lokuthi lezi zingxenye zivame ukungena ezinhlelweni lapho ukwehluleka kungeyona inketho - imishini ye-subsea, imigqa yokucubungula amakhemikhali, izikhuhla zokulawula ukungcola. Izindleko zokwehluleka emkhakheni zinciphisa izindleko zokuhlola kusengaphambili.
Yilokhu kuqwashisa kokusetshenziswa kokugcina okulolonga yonke inqubo yethu. Kusukela ngaleso sikhathi i Ikholomu 825 isitokwe sifika esikhungweni sethu e-Qingdao, kuze kube sekugcineni kwe-crating yokugcina yomzimba we-valve oqediwe, ohloliwe noma i-pump impeller, zonke izinyathelo zibuswa ukuqonda ukuthi asigcini nje ngokubumba insimbi; sinikeza umgoqo ngokumelene nezinye izindawo zezimboni ezigqwala kakhulu emhlabeni. Lowo mthwalo wemfanelo unquma ijubane, ukunakekela, kanye nokukhungatheka ngezikhathi ezithile okuhambisana nokusebenza ngento enekhono kodwa enzima kangaka.
