Ukuqaliswa kwezinto zokutywinwa kwevalve-i-TWS Valve

Izinto zokutywina zevalve yinxalenye ebalulekileyo yokutywinwa kwevalvu. Ziziphi izixhobo zokutywina ivalvu? Siyazi ukuba izixhobo zokutywina ivalve zahlulwe zibe ziindidi ezimbini: isinyithi kunye ne-non-metal. Oku kulandelayo sisingeniso esifutshane kwiimeko zokusetyenziswa kwezinto ezahlukeneyo zokutywinwa, kunye neentlobo zevalve ezisetyenziswa ngokuqhelekileyo.

1. Irabha yokwenziwa

Iimpawu ezibanzi zeerubha zokwenziwa ezifana nokuchasana kweoli, ukumelana nobushushu kunye nokumelana nokubola kungcono kunezo zerubha zendalo. Ngokubanzi, ubushushu bokusetyenziswa kwerabha yokwenziwa yi-t≤150℃, kwaye iqondo lobushushu lerabha yendalo yi-t≤60℃.Irabha isetyenziselwa ukutywina iivalvu zeglowubhu,irabha ehleli ivalve yesango, iivalve ze-diaphragm,rivalve yebhabhathane ehleli ubber, rubber ehleli ivalve yokujonga ujingi (khangela iivalve), iivalve zepinch kunye nezinye iivalve ezinoxinzelelo lwe-PN≤1MPa.

2. Inayiloni

Inayiloni ineempawu ze-coefficient encinci ye-friction kunye nokuchasana kakuhle kwe-corrosion. Inayiloni isetyenziswa kakhulu kwiivalvu zebhola kunye neevalvu zeglowubhu ezinobushushu obuyi-t≤90℃ kunye noxinzelelo lwegama elingu-PN≤32MPa.

3. PTFE

I-PTFE isetyenziswa kakhulu kwiivalvu zeglowubhu,iivalve zesango, iivalvu zebhola, njl. kunye nobushushu t≤232℃ kunye noxinzelelo lwe-PN≤6.4MPa.

4. Intsimbi yokuphosa

Intsimbi yokuphosa isetyenziselwaivalve yesango, ivalve yeglowubhu, ivalve yeplagi, njl. kwiqondo lobushushu t≤100℃, uxinzelelo lwegama PN≤1.6MPa, igesi kunye neoli.

5. Ingxubevange yeBabbitt

I-alloy ye-Babbitt isetyenziselwa ivalve yeglowubhu ye-ammonia kunye nobushushu be-t-70 ~ 150℃ kunye noxinzelelo lwe-PN≤2.5MPa.

6. Ingxubevange yobhedu

Izinto eziqhelekileyo ze-alloys zobhedu ziyi-6-6-3 ye-tin bronze kunye ne-58-2-2 yobhedu ye-manganese. Ingxubevange yobhedu inokumelana nokunxiba kakuhle kwaye ilungele amanzi kunye nomphunga ngobushushu t≤200℃ kunye noxinzelelo lwe-PN≤1.6MPa. Isetyenziswa rhoqo kwiiivalve zesango, iivalvu zeglowubhu,khangela iivalve, iivalvu zeplagi, njl.

7. Chrome steel stainless

Amanqanaba asetyenziswa ngokuqhelekileyo ensimbi engenasici ye-chromium yi-2Cr13 kunye ne-3Cr13, eziye zacinywa kwaye zinomsindo, kwaye zine-corrosion resistance resistance. Ihlala isetyenziswa kwiivalvu zemidiya efana namanzi, umphunga kunye nepetroleum enobushushu obuyi-t≤450℃ kunye noxinzelelo lwe-PN≤32MPa.

8. I-Chromium-nickel-titanium insimbi engenasici

Ibakala elisetyenziswa ngokuqhelekileyo le-chromium-nickel-titanium yensimbi engenasici yi-1Cr18Ni9ti, enokumelana nokugqwesa okulungileyo, ukuxhathisa ukuguguleka kunye nokumelana nokushisa. Ilungele umphunga, i-asidi ye-nitric kunye nezinye imidiya kunye nobushushu t≤600℃ kunye noxinzelelo lwe-PN≤6.4MPa, esetyenziselwa ivalve yeglowubhu, ivalve yebhola, njl.

9. Intsimbi ene-nitrided

Ibakala eliqhelekileyo elisetyenziswayo lentsimbi ye-nitrided yi-38CrMoAlA, enokumelana ne-corrosion elungileyo kunye nokuxhathisa ukukrala emva konyango lokungcwatywa kwe-carburizing. Ngokuqhelekileyo isetyenziswa kwi-valve yesango lesikhululo samandla kunye nobushushu t≤540℃ kunye noxinzelelo lwe-PN≤10MPa.

10. Boronizing

I-Boronizing iqhuba ngokuthe ngqo umphezulu wokutywina ukusuka kwisixhobo somzimba wevalve okanye umzimba wediski, emva koko iqhube unyango lomphezulu we-boronizing, umphezulu wokutywina unokumelana nokunxiba kakuhle. Isetyenziswa kwivalufa yokuvuthela kwisikhululo samandla.