Lapho onjiniyela bayacacisa I-Incoloy800 emazingeni okushisa aphezulu, izicelo zokugqwala okuphezulu-njengamashubhu e-steam reformer, amagobolondo okushintshanisa ukushisa, noma ama-manifolds okucubungula i-hydrocarbon-awakhethi nje ingxubevange. Babheja ngokungaguquguquki kwe-metallurgical, ukwethembeka kobukhulu ngaphansi kokuhamba ngebhayisikili okushisayo, kanye nokungabekezeleli lutho ngokuhlukaniswa kwesakhiwo esincane. Ngakho-ke ukutholakala kweqiniso I-Incoloy800 ifektri zibalulekile—hhayi i-ejenti yokuhweba, hhayi isisekelo senjongo evamile, kodwa isikhungo esinokulawulwa kwenqubo okubhaliwe phezu kokufakwa kwesixazululo, ukuqiniswa kosayizi wokusanhlamvu, kanye nemingcele yokusebenza okushisayo eqondene nama-superalloy e-Fe-Ni–Cr.
Sibone amaphrojekthi amaningi efa ngenxa yokuthi umphakeli ucaphune i-Incoloy800—kodwa waletha impahla enesibabule esiningi esingu-0.02%, okubangela ukuqhekeka kwe-intergranular ngesikhathi sokumbondelana kokushisela. Noma okubi nakakhulu: izingxenye ezifakwe ku-billet ezinomlando wokushisa ongaqinisekisiwe, okuholela ekuqhumeni ngaphambi kwesikhathi kusevisi engu-750°C. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., i-oda ngalinye le-Incoloy800 liqala ngemibiko yokuhlolwa kokugaya eqinisekiswa ngokumelene ne-ASTM B407 ne-ASME SB-407. Sisuka kuphela ezigayweni ezigunyazwe ku-NADCAP AC7108 ukuze kucutshungulwe i-nickel-alloy—futhi sigcina ukulandeleka okugcwele: inombolo ye lot, i- melt ID, ilogu yokwelashwa kwe-thermomechanical, kanye nokuqinisekiswa kokuqina kwangemva kokuzalwa. Akukho okuhlukile.
Yini ehlukanisa umuntu onekhono I-Incoloy800 ifektri kusuka kumphakeli wempahla akusona nje isitifiketi—indlela ingxubevange eziphatha ngayo *ngemuva* kokwenziwa. I-Incoloy800 isebenza-nzima ngokushesha. I-thermal conductivity yayo iphansi. Amandla ayo ashisayo adinga amasu aqondile wendlela yamathuluzi kanye nokulethwa okupholisayo okulawulwayo. Sisebenzisa zonke izinhlelo ze-Incoloy800 CNC emishinini ye-5-axis enokuqapha komthwalo we-spindle ngesikhathi sangempela. Izilinganiso zokuphakelayo zilungiswa ngokuguquguqukayo ngokusekelwe kumephu yokuqina kwendawo—ngoba iqoqo elilodwa lingahluka ±15 HB kuzo zonke izingxenye zayo. Asigcini ngomshini wokuphrinta; sisebenza ngomshini ukuze *sisebenze*. Indlu yephampu ayiyona nje eyindilinga—kumele igcine ukugxila okungu-≤0.015 mm ezingeni lokushisa lokusebenza, ukuze uphawu lwepiston lungakhulumi. Lokho kudinga ukudambisa ingcindezi *ngaphambi* komshini wokugcina, hhayi ngemuva.
- Ukuzinza kwe-Dimensional ngaphansi komthwalo oshisayo: Zonke izingxenye ze-Incoloy800 zithola impumuzo yokucindezeleka okuphindwe kabili—okokuqala ku-900°C amahora angu-2 esithandweni somlilo esihlanzwe nge-nitrogen, bese ku-760°C amahora angu-4 ngokupholisa kancane (≤20°C/ihora)
- Ubuqotho bobuso bokumelana nokugqwala: Akukho ukusha kokugaya. Awekho ama-microcracks angaphansi komhlaba. Yonke ingxenye idlula ukuhlolwa kwe-fluorescent penetrant (ASTM E1417) kanye nokuqinisekiswa kokuqina kwendawo (Ra ≤ 0.8 µm ebusweni obuvaliwe)
- Ukulungela ukushisela: Zonke izitoko ezingavuthiwe zifakwe isisombululo futhi zifakwe emanzini anosawoti nge-ASTM A959 ngayinye, nokuqukethwe kwe-ferrite kuqinisekiswe ngaphansi kuka-0.5%—okubalulekile ekugwemeni i-sigma-phase embrittlement kuma-multi-pass welds
Abanye bangase baphikise ngokuthi ukuphonsa i-Incoloy800 akunakwenzeka—kuthambekele kakhulu ekunciphiseni i-porosity, kunzima kakhulu ukuyondla. Kodwa ulayini wethu wokusakaza isihlabathi usebenzisa amasistimu wokugenca angokwezifiso aklanyelwe ngokuqondile ama-alloys e-Fe-Ni-Cr: isikhunta esimbozwe nge-ceramic, esishiswe kuqala safinyelela ku-350°C, ngokuqiniswa okuqondile okuphoqelelwe ngokugodola nokubeka isikhuphukeli esiqinisekiswe i-MAGMAsoft simulation. Siphonsa imizimba yamavalvu e-Incoloy800 aze afike ku-120 kg—hhayi njengama-prototypes, kodwa njengezingxenye zokukhiqiza ezifanelekela i-API 6A PR2. Isihluthulelo? Ilawula isivinini sokuqinisa siye ku-±0.3 mm/s kuso sonke isigaba. Lokho akuwona ukuqagela. Idizayini yenqubo eqhutshwa yi-physics.
Umbuzo wethu ovame kakhulu wamakhasimende awuthi “Ungakwazi ukuwenza?”—ukuthi “Ngiwugwema kanjani ugibe olubulale iqoqo lethu lokugcina?” Ngakho-ke sishumeka ukubuyekezwa konjiniyela kusenesikhathi: Ukuqinisekiswa kwe-GD&T ngokumelene nenjongo yokusebenza (hhayi nje ukuthobela umdwebo), imodeli yokunweba okushisayo yokuhlangana kwe-flange, kanye nezincomo zetorque yebhawodi ezisekelwe kumandla wesivuno sangempela okushisa okunikeziwe. Ikota edlule, sihlabe umkhosi idizayini lapho ukujiya kodonga olushiwo kungadlula isilinganiso sokupholisa esibalulekile semvula ye-carbide—siphakamisa i-tweak yejometri esikhundleni sokwelashwa okumba eqolo kokushisa kwangemuva kokushisela. Lokho kusindisa amasonto amathathu kanye ne-$ 18,000 ekusebenzeni kabusha.
Uma udinga izingxenye ze-Incoloy800 ezisinda emahoreni angu-30,000 ku-800°C ngaphandle kokukalwa, ukuvuza, noma ukuhlanekezela—khona-ke udinga okungaphezu kokuthobela izinto ezithile. Udinga umlingani ophatha i-alloy chemistry njengesiqalo, hhayi umugqa wokugcina. Ubani oqonda ukuthi i-AMS 5387 cobalt nozzles kanye nezindlu zephampu ze-Incoloy800 zabelana ngesiyalo esiwumongo esifanayo: ukulawula i-microstructure ngesinyathelo ngasinye senqubo. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza lesiyalo nsuku zonke—hhayi njengethiyori, kodwa njengomkhuba olinganiselwe. Ngokusebenza okubalulekile komgomo, akukho okuthathela indawo umuzwa owenziwe ngezindlela zokuhluleka zomhlaba wangempela. Yilokho okuchaza iqiniso I-Incoloy800 ifektri.
