Ob chav eccentric npauj npaim valve yog tias lub valve qia axis deviates los ntawm ob qho tib si nruab nrab ntawm npauj npaim phaj thiab qhov nruab nrab ntawm lub cev. Nyob rau hauv lub hauv paus ntawm ob eccentricity, lub sealing khub ntawm triple eccentric npauj npaim valve yog hloov mus rau hauv inclined cone.

Kev sib piv qauv:

Ob chav eccentric npauj npaim valve thiab triple eccentric npauj npaim valve tuaj yeem ua rau npauj npaim phaj sai sai tawm ntawm lub rooj zaum tom qab qhib, tshem tawm qhov tsis tsim nyog extrusion thiab scraping ntawm tus npauj npaim phaj thiab lub rooj zaum valve, txo qhov qhib tsis kam, txo qhov hnav thiab txhim kho lub neej kev pab cuam ntawm lub rooj zaum valve.

Khoom sib piv:

Lub ntsiab siab qhov chaw ntawm ob chav eccentric npauj npaim valve yog ua los ntawm cov hlau ductile, thiab lub ntsiab siab ntawm peb eccentric npauj npaim valve yog ua los ntawm steel casting. Lub zog ntawm ductile hlau thiab steel casting yog sib piv. Cov hlau nplaum muaj zog ntau dua, nrog lub zog qis ntawm 310mpa, thaum lub zog ntawm cov hlau cam khwb cia tsuas yog 230MPa. Hauv cov ntawv thov hauv nroog feem ntau, xws li dej, dej ntsev, chav dej, thiab lwm yam, kev tiv thaiv corrosion thiab oxidation tsis kam ntawm cov hlau ductile yog zoo dua li cov hlau cam khwb cia. Vim lub spheroidal graphite microstructure ntawm cov hlau ductile, ductile hlau yog zoo dua cam khwb cia hlau nyob rau hauv txo kev co, yog li nws yog ntau conducive rau txo kev ntxhov siab.

Kev sib piv ntawm cov nyhuv sealing:

Ob chav eccentric npauj npaim valve txais lub rooj zaum kheej kheej thiab ntab elastic. Nyob rau hauv qhov zoo siab, qhov clearance tshwm sim los ntawm machining kam rau ua thiab deformation ntawm valve ncej thiab npauj npaim phaj nyob rau hauv nruab nrab siab ua rau lub spherical nto ntawm npauj npaim phaj ntau zoo nyob rau hauv sealing nto ntawm lub rooj zaum valve. Nyob rau hauv qhov tsis zoo siab, lub rooj zaum ntab txav mus rau qhov nruab nrab siab nyob rau hauv nruab nrab siab, Ua kom muaj txiaj ntsig zoo los ntawm kev ua haujlwm siab thiab kev deformation ntawm valve ncej thiab npauj npaim phaj nyob rau hauv qhov kev txiav txim ntawm nruab nrab siab, kom paub txog kev rov qab sealing.

Qhov peb eccentric nyuaj sealing npauj npaim valve txais yuav ruaj inclined conical valve lub rooj thiab ntau theem sealing nplhaib. Nyob rau hauv qhov zoo siab, qhov clearance tshwm sim los ntawm machining kam rau ua thiab lub deformation ntawm lub valve ncej thiab npauj npaim phaj nyob rau hauv nruab nrab siab ua rau lub multi-level sealing nplhaib ntau zoo nyob rau hauv sealing nto ntawm lub rooj zaum valve, tab sis nyob rau hauv lub rov qab siab, ntau qib sealing. Lub nplhaib yuav nyob deb ntawm qhov chaw sib khi ntawm lub rooj zaum valve, Yog li, rov qab sealing tsis tuaj yeem ua tiav.