Ama-thermocouples asezingeni eliphezulu awaphumeleli—hhayi ezintanjeni ezinephutha, kodwa ngenxa yamashubhu okuvikela aqhekekile, agqwalile, noma angahambelani kahle. Sikubone eziko ezishisisa kabusha izigayo zensimbi lapho imijikelezo engu-1200°C iguguleka imikhono ye-alumina ngaphansi kwezinyanga eziyisithupha. Sishintshe amashubhu e-cobalt-alloy kuma-pumpu amaningi asogwini ngemuva kokuthi ukungena kwamanzi olwandle kusonte isixhumi esibonakalayo se-flange. Ukuthembeka komhlaba wangempela kuqala kudala ngaphambi kokuba inzwa ilinganiswe: iqala ngeshubhu lokuvikela.
Kungani i-"Thermocouple protection tube factory" ingelona nje igama lokusesha—iwukucaciswa
Abathengi abaningi baphatha amashubhu okuvikela njengehadiwe ejwayelekile. Abekho. Ishubhu elisebenza kuhhavini welebhu lihluleka kakhulu endaweni yephampu ye-hydraulic piston evezwe ukushaqeka okushisayo, ukudlidliza, namafutha agcwele izinhlayiya. Imboni efanele ayigcini nje ngokuphonsa noma imshini isilinda. Ikha umgoqo—ozinze ngohlangothi ku-1100°C, ohambisana kahle ne-thermocouple sheath, futhi omiswe ngomshini ukuze umelane nokukhathala ku-flange ekhuphukayo.
Lokho kudinga amakhono amathathu angaxoxiswana: okokuqala, ukuphatha kahle ama-alloys asebenza kahle njenge-AMS 5387 cobalt-chromium kanye ne-T800-grade superalloys—izinto ezimelana nokukhasa kodwa zifuna ukulawula ukushisa okunembayo; okwesibili, ukuhlanganiswa okuqondile kokusakazwa kokutshalwa kwezimali *kanye* nama-multi-axis CNC machining ukuze kubambe ukubekezelelana okungu-±0.02 mm ezindaweni ezibucayi zokuvala; okwesithathu, ukulandeleka okugcwele kwempahla—kusuka kumbiko wokuhlolwa komshini wokugaya okuqinisekisiwe kuye ebukhuni obukhethekile kanye nokuqinisekiswa kwesakhiwo sokusanhlamvu.
Izindlela ezine zokuhluleka—nokuthi ifekthri efanelekayo iyivimba kanjani ngayinye
Silandelela ukwehluleka kwenkambu kuzo zonke izizinda zamandla zikagesi zaseNyakatho Melika kanye nezindawo zaseNingizimu-mpumalanga ye-Asian petrochemical. Izimbangela ezine zibusa:
- Ukuqhekeka kokungafani kokushisa: Uma ithubhu likhula ngokushesha kunomgodla we-thermocouple noma i-flange ekhwezayo, ama-microfracture akheka eduze kwamalunga okushisela. Isixazululo: ukumataniswa kwengxubevange kuqinisekiswe ngokufanisa i-coefficient-of-thermal-expansion (CTE)—hhayi nje ukuthobelana kwebanga.
- Ukuguguleka kwe-interface: Ukugeleza okuyaluzayo noma udaka olubi olusikeka endaweni ethiphu yeshubhu, okuveza ukuhlangana. Isixazululo: i-geometry yethiphu eqinile (isb., i-conical noma i-hemispherical) eyenziwe ngomshini *ngemuva* kokwelashwa kokushisa—hhayi ukuphonswa ngaphakathi.
- Ukwehliswa kwesithunzi: Ukulahlekelwa kokucindezelwa kwe-gasket ezingeni lokushisa eliphezulu kuvumela ukucubungula imidiya ukuthi ingene. Isixazululo: amahlombe okuvala aphendulwe ngokunemba anombala ongaphezulu Ra ≤ 0.4 µm—kuqinisekiswe i-optical profilometry, hhayi ukuhlola okubonakalayo.
- I-Dimensional Drift: Amashubhu anda noma ayajika phakathi nesevisi ende, edonsa i-thermocouple ekujuleni kwayo kokucwiliswa okulinganiselwe. Isixazululo: i-annealing-relief annealing nge-ASTM A967 ngayinye, kulandelwa ukuqinisekiswa kwe-CMM-post-heat-treatment of straightness and concentricity.
Lokhu akukona ukukhathazeka kwethiyori. Kungakho ikhasimende elilodwa lishintshe abahlinzeki ngemva kwamaqoqo amathathu alandelanayo amashubhu e-Inconel 600 abonise umnsalo ongu-0.15 mm ku-900°C—edlula i-ASME B31.1 yamapayipi ngo-300%.
Yini ehlukanisa umphakeli nefekthri yeshubhu lokuvikela i-thermocouple
Umphakeli uthumela amashubhu. Imboni iletha isiqiniseko sezinga lesistimu. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., lokho kusho ukuthi ukubuyekezwa konjiniyela kuqala ngomdwebo wakho we-GD&T—hhayi i-PO yakho. Sihlaba umkhosi izingozi kusenesikhathi: ubukhulu bodonga obungu-1.5 mm bungase bubhekane nengcindezi emile, kodwa ukuhlaziya ukukhathala kokudlidliza kubonisa ukuzwakala kokungu-210 Hz ekuhlanganiseni kwephampu yakho. Siphakamisa idizayini yodonga olunezitebhisi engu-2.0 mm enomshini wendawo yokonga isisindo—ogunyazwe i-FEA ngaphambi kokusetshenziswa.
Isikhungo sabo esithobela i-ISO siphatha zombili izindlu zokusakazwa kwesihlabathi zokuhlola isithando somlilo ezinobubanzi obukhulu kanye nemibhobho yokusakazwa kwe-investment-cast yokuqapha ukumosheka kwe-turbine. Lonke iqoqo le-cobalt-nickel lihlolwa nge-spectrographic, ukuhlolwa kokugqwala kwe-intergranular nge-ASTM A262 Practice E ngayinye, nokuqinisekiswa okuqinile ekamelweni nezinga lokushisa lesevisi. Akukho "impahla eqinisekisiwe" ngaphandle komlando wokushisa obhaliwe. Akukho ukudlula kobukhulu ngaphandle kokulandeleka kwe-CMM kumazinga we-NIST.
Abagcini amashubhu "ajwayelekile". Basebenzisa i-AMS 5387 billet, i-T800 ingots, kanye ne-316L engenasici—bese kuba umshini, u-cast, noma u-hybrid-process i-oda ngalinye ukuze usebenze, hhayi inombolo yekhathalogi.
Ukukhetha umlingani wakho: imibuzo edalula ikhono
Buza lokhu ngaphambi kokucela ukucaphuna—futhi ubuke ukuthi baphendula bajule kangakanani:
- “Ingabe ungakwazi ukunikeza ijika lokunweba elishisayo leshubhu yakho ye-AMS 5387 phakathi kuka-25°C no-1100°C—futhi uqinisekise ukuthi ikalwa endaweni efanayo esetshenziswa ekukhiqizeni?”
- “Sibonise imibiko yakho emithathu yokugcina ye-CMM yeshubhu yodonga engu-12 mm OD × 1.5 mm—ikakhulukazi ukuchezuka okuyindilinga maphakathi nobude nokuphuma kwethiphu.”
- "Ubuqinisekisa kanjani ubuqotho be-seal ngemva komshini wokugcina? Ukuhlolwa kwengcindezi? Ukuvuza kwe-Helium? Faka udayi ebusweni obuvaliwe?"
- "Uma uhlelo lwethu lokusebenza ludinga i-engeli ye-taper yangokwezifiso ekugcineni kokufaka, ingabe uyayifaka ngomshini ukwelashwa kwangaphambi noma kwangemuva kokushisa-futhi isiphi isiphetho sakho esiphezulu ongasifinyelela kuleso sici?"
Izimpendulo ezingacacile zibonisa ukuthembela ezindlini zabalingisi zezinkampani zangaphandle noma izikhala ezingaphandle kweshalofu. Izimpendulo ezinembile, ezisekelwe kwidatha zisho ukuthi ukhuluma no ifektri ye-thermocouple protection tube.
Ukuthembeka akwakhiwe kunzwa. Yakhelwe kushubhu—futhi ilethwa ozakwethu abaphatha yonke imilimitha yogqinsi lwezindonga, yonke idigri ye-taper, wonke umumo womngcele wokusanhlamvu njengento ebaluleke kakhulu. Yilokho amakhasimende ajwayelekile akulindele. Yilokho okujwayelekile kwe-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ihlangana—nsuku zonke, kuwo wonke amaketanga okunikezela emhlabeni wonke, ngezinhlelo zokusebenza lapho ukwehluleka kungeyona inketho.
