Ma thermocouples otentha kwambiri amalephera—osati kuchokera ku mawaya olakwika, koma kuchokera kumachubu odzitetezera ong’aluka, ochita dzimbiri, kapena olakwika. Taziwona mu ng'anjo zachitsulo zomwe zimatenthetsanso ng'anjo za 1200 ° C zomwe zimawononga manja a alumina mkati mwa miyezi isanu ndi umodzi. Tasintha machubu a cobalt-alloy pamapampu akunyanja atalowa madzi am'nyanja atasokoneza mawonekedwe a flange. Kudalirika kwenikweni kwa dziko kumayamba kale sensor isanayesedwe: imayamba ndi chubu choteteza.
Chifukwa chiyani "Thermocouple protection tube factory" sikuti ndi mawu ofufuzira-ndizofotokozera
Ogula ambiri amawona machubu oteteza ngati ma generic hardware. Iwo sali. Chubu chomwe chimagwira ntchito mu uvuni wa labu chimalephera mowopsa mnyumba ya pampu ya hydraulic piston yomwe imakhala ndi kugwedezeka kwamafuta, kugwedezeka, ndi mafuta odzaza ndi tinthu. Fakitale yoyenera simangoponyera kapena makina silinda. Imapanga chotchinga - chokhazikika pa 1100 ° C, chogwirizana ndi chitsulo cha thermocouple sheath, ndikumangika mwamakina kuti tipewe kutopa pamalo okwera.
Izi zimafuna mphamvu zitatu zomwe sizingagwirizane: choyamba, kulamulira kwazitsulo zogwira ntchito kwambiri monga AMS 5387 cobalt-chromium ndi T800-grade superalloys-zida zomwe zimakana kukwawa koma zimafuna kuwongolera kutentha kwachindunji; chachiwiri, kuphatikiza ofukula kuponya ndalama * ndi * Mipikisano olamulira CNC Machining kugwira ± 0.02 mamilimita kulolerana pa malo ovuta kusindikiza; chachitatu, kufufuza zinthu zonse—kuchokera ku malipoti oyezetsa mphero mpaka kuuma kochulukira komanso kutsimikizira kapangidwe ka mbewu.
Njira zinayi zolephera—ndimomwe fakitale yoyenerera imatetezera iriyonse
Timatsata kulephera kwa minda kudera lamagetsi la North America ndi malo aku Southeast Asia petrochemical. Zifukwa zinayi zikulamulira:
- Kusokonezeka kwa kutentha kwapakati: Chubu chikakula mofulumira kuposa thermocouple sheath kapena kukwera flange, ma microfractures amapanga pafupi ndi ma weld joints. Yankho: ma alloy pairing amatsimikiziridwa kudzera mu kufananitsa kwa coefficient-of-thermal-expansion (CTE) -osati kungotsatira mwadzina.
- Kukokoloka kwa mawonekedwe: Kuthamanga kwa chipwirikiti kapena abrasive slurry kudula mu nsonga ya chubu, kuwonetsa mphambano. Yankho: nsonga yolimba ya geometry (monga conical kapena hemispherical) yopangidwa ndi *pambuyo* kutentha kutentha-osati kuponyedwa mkati.
- Kuwonongeka kwa chisindikizo: Kutayika kwa psinjika kwa Gasket pa kutentha kwakukulu kumalola kuti media ilowe. Njira yothetsera: mapewa osindikizira olondola ndi mapeto a pamwamba Ra ≤ 0.4 µm-yotsimikiziridwa ndi optical profilometry, osati kuyang'anitsitsa.
- Dimensional drift: Machubu amatalikirana kapena amapindika panthawi yogwira ntchito yayitali, kukoka thermocouple kuchoka pakuzama kwake kokwanira. Yankho: Kuchepetsa kupsinjika kwa ASTM A967, kutsatiridwa ndi kutsimikizira kwa CMM-post-heat-therapy kutsimikizira kuwongoka ndi kukhazikika.
Izi sizongoganizira chabe. Ichi ndichifukwa chake kasitomala m'modzi adasinthitsa othandizira pambuyo pa magulu atatu otsatizana a machubu a Inconel 600 adawonetsa uta wa 0.15 mm pa 900 ° C - kupitilira mapaipi awo a ASME B31.1 ndi 300%.
Zomwe zimalekanitsa wogulitsa kuchokera ku fakitale yachitetezo cha thermocouple
Wopereka katundu amatumiza machubu. Fakitale imapereka chitsimikizo cha mulingo wadongosolo. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., zikutanthauza kuti kuunika kwaukadaulo kumayamba ndi zojambula zanu za GD&T—osati PO yanu. Timayika pachiwopsezo msanga: makulidwe a khoma la 1.5 mm amatha kupulumuka kupsinjika kwa static, koma kusanthula kwa kutopa kwamphamvu kumawonetsa kumveka kwa 210 Hz pagulu lanu la pampu. Tikupangira kapangidwe kakhoma ka 2.0 mm kokhala ndi makina am'deralo kuti achepetse kulemera - kovomerezeka ndi FEA musanagwiritse ntchito.
Malo awo ogwirizana ndi ISO amayang'anira nyumba zonse zoponyedwa mchenga zopangira ma ng'anjo ang'onoang'ono a mainchesi akulu ndi ma nozzles oponyera ndalama powunika kutulutsa kwa turbine. Gulu lililonse la cobalt-nickel limayesedwa mowoneka bwino, kuyezetsa kwa dzimbiri kwapakati pa ASTM A262 Practice E, ndikutsimikizika kwamphamvu m'chipinda ndi kutentha kwa ntchito. Palibe "zinthu zotsimikizika" popanda mbiri yakale ya kutentha. Palibe chiphaso chopanda mawonekedwe popanda CMM kutsata miyezo ya NIST.
Sakhala ndi machubu "okhazikika". Amakhala ndi AMS 5387 billet, T800 ingots, ndi 316L zosapanga dzimbiri-kenako makina, oponya, kapena osakanizidwa-njira iliyonse kuti igwire ntchito, osati nambala yamakasitomala.
Kusankha bwenzi lanu: mafunso omwe amawulula kuthekera
Funsani awa musanapemphe mawu - ndipo muwone momwe akuyankhira mozama:
- "Kodi mungathe kupereka mapindikidwe owonjezera kutentha kwa chubu lanu la AMS 5387 pakati pa 25 ° C ndi 1100 ° C - ndikutsimikizira kuti amayezedwa pagawo lomwelo lomwe amagwiritsidwa ntchito popanga?"
- "Tiwonetseni malipoti anu atatu omaliza a CMM a chubu la khoma la 12 mm OD × 1.5 mm - makamaka kupatuka kozungulira pakati pa utali ndi nsonga yothamanga."
- "Kodi mumatsimikizira bwanji kukhulupirika kwa chisindikizo mutatha kupanga makina omaliza? Kuyesedwa kwamphamvu? Helium kutayikira? Dothi lolowera pankhope yosindikiza?"
- "Ngati pulogalamu yathu ikufuna njira yolumikizira kumapeto kwake, kodi mumayiyika musanayambe kutentha kapena kutenthedwa - ndipo ndi chiyani chomwe mungakwaniritse pachinthucho?"
Mayankho osamveka akuwonetsa kudalira nyumba zoponyedwa za gulu lachitatu kapena zopanda kanthu. Zolondola, mayankho otsatiridwa ndi deta amatanthauza kuti mukuyankhula ndi a thermocouple chitetezo chubu fakitale.
Kudalirika sikumangidwira mu sensa. Amapangidwa mu chubu-ndipo amaperekedwa ndi othandizana nawo omwe amachiza millimeter iliyonse ya makulidwe a khoma, mlingo uliwonse wa tepi, mbali zonse za malire a tirigu monga zofunikira kwambiri. Ndizo zomwe makasitomala amayembekezera. Ndiwo muyezo QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. zimakumana -tsiku ndi tsiku, kudutsa maunyolo apadziko lonse lapansi, pazogwiritsa ntchito pomwe kulephera sikungatheke.
