Hauv cov txheej txheem txheej txheem, threaded kev sib txuas yog cov khoom siv tseem ceeb uas siv los koom nrog cov khoom siv los tswj cov kua dej lossis roj hloov pauv. Cov fittings no feature helical grooves machined nyob rau sab nrauv (txiv neej) lossis sab hauv (poj niam) qhov chaw, ua kom muaj kev ruaj ntseg thiab tsis muaj kev sib txuas. Thaum mated, cov xov tsim ib qho khoom siv ruaj khov uas muaj peev xwm tiv taus kev ua haujlwm sib txawv.
Threaded kev sib txuas ua haujlwm tsis yog tsuas yog tuav cov khoom sib xyaw ua ke tab sis kuj los tiv thaiv kev tawm xov xwm. Muaj ob hom xov tseem ceeb: parallel thiab taper threads. Txhua qhov sib txawv hauv geometry thiab sealing mechanism.
Parallel Xov
Kuj tseem hu ua cov xov ncaj, cov xov sib txuas muaj ib txoj kab uas hla thiab xov profile raws lawv tag nrho ntev. Cov duab zoo li no yooj yim rau kev sib dhos thiab kev teeb tsa. Txawm li cas los xij, raws li cov xov tsis taper, nws tsis tsim ib lub foob los ntawm radial compression. Hloov chaw, nws yuav yog nyob ntawm cov khoom siv sib khi-xws li O-ring, gasket, lossis ntxhua khaub ncaws-kom tiv thaiv kom tsis txhob muaj kev cuam tshuam hauv daim ntawv thov siab. Lub luag haujlwm tseem ceeb ntawm cov xov yog muab cov neeg kho tshuab lub zog. Qhov kev tsim no ua rau cov xov sib txuas zoo haum rau cov ntawv thov uas yuav tsum tau sib dhos thiab sib cais, txij li lub foob hloov tau yooj yim txij nkawm yam tsis muaj kev puas tsuaj rau cov xov.
Taper Xov
Taper xov yog machined nrog ib tug maj txo txoj kab uas hla, tsim ib tug conical daim ntawv. Raws li cov txiv neej thiab poj niam cov khoom sib koom ua ke, lub taper tsim ib qho kev sib txuas uas ua rau cov xov sib txuas ntxiv thiab tsim kom muaj kev cuam tshuam rau cov khoom siv. Qhov no radial compression tsim cov hlau-rau-hlau foob, uas yuav nruj dua nyob rau hauv siab, ua taper xov zoo heev nyob rau hauv high-pressure los yog dynamic systems uas muaj gases los yog kua. Lub sealing kev ua tau zoo ntawm taper xov txhim kho nrog kev nruj thiab siab nce, tshem tawm qhov xav tau ntxiv cov ntsaws ruaj ruaj hauv ntau daim ntawv thov.
Kev xaiv xaiv
Parallel threads feem ntau nyiam nyob rau hauv cov tshuab uas tsis tshua muaj siab los yog qhov twg modularity thiab kev saib xyuas yooj yim yog qhov tseem ceeb. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov gaskets los yog O-rings kom ntseeg tau tias muaj dej nruj.
Taper threads ua tau zoo nyob rau hauv ib puag ncig siab, tshwj xeeb tshaj yog nyob rau hauv hydraulic, pneumatic, los yog cov txheej txheem kua dej. Lawv lub peev xwm sealing tus kheej nyob rau hauv siab ua rau lawv muaj kev ntseeg siab xaiv raws li qhov xav tau.
Rau kev teeb tsa cov cuab yeej, cov qauv xov zoo xws li Metric thiab BSPP (parallel), nrog rau NPT thiab BSPT (tapered). Thaum xaiv hom kev sib txuas, nws yog qhov tseem ceeb uas yuav tsum xav txog kev ua haujlwm, qib siab, thiab kev sib raug zoo nrog cov kev sib txuas uas twb muaj lawm. Nrog rau ntau tshaj 20 xyoo ntawm kev paub hauv kev tsim khoom ntsuas,Shanghai Wangyuanmuaj ntau yam xov xaiv rau transmitters thiab txhawb kev cai configuration rau txheej txheem kev twb kev txuas. Thov koj xav tiv tauj peb rau kev nug ntxiv lossis cov cai tshwj xeeb.
Post lub sij hawm: Sep-09-2025