TsimTsev kawm ntawv qib thiab universities

Raws li cov capillary nyhuv nyob ntawm qhov ntev ntawm lub raj?

Ib tug capillary nyhuv nyob rau hauv cov kua tshwm sim nyob rau ciam ntawm ob xov xwm - dej thiab nkev. Nws ua rau ib tug curvature ntawm tus nto, ua rau nws concave los yog convex.

Capillary txiav txim dej

Thaum lub khob uas muaj cov H 2 O, nws saum npoo yog tus. Txawm li cas los, cov dabtsi yog khoov ntawm cov phab ntsa tshwm sim. Yog hais tias lawv yog wetted, tus nto yuav concave, yog hais tias lawv yog qhuav - arched. Cov attraction ntawm molecules ntawm H 2 O mus rau lub phab ntsa ntawm cov hlab ntau tshaj ib leeg. Qhov no piav txog cov capillary nyhuv. Lub quab yuam seb puas tsimnyog tau molecules H 2 O mus rau lub point kom txog rau thaum nws counterbalances lub hydrostatic siab.

pom

Raws li ib feem ntawm lub thwmsim, tus neeg tshawb fawb nrhiav los mus txiav txim yuav ua li cas lub capillary nyhuv nyob ntawm qhov ntev ntawm lub raj. Thaum lub sij hawm lub tswvyim, nws twb pom hais tias lub raj ntev tsis nyob ntawm seb nws, nws muaj ib tug nqi thickness ntawm cov hlab. Nyob rau hauv nqaim rau tej qhov chaw deb ntawm cov phab ntsa yog me me. Raws li ib tug tshwm sim, lawv yog arched kev cob cog rua rau txhua lwm yam. Stacks thiab capillary nyhuv. Raws li, qhov theem ntawm H 2 O nyob rau hauv lub me me txog ntsha yuav ua tau siab tshaj nyob rau hauv ib tug dav.

av

Nyob rau hauv txhua av pores yog tam sim no. Lawv kuj tshwm sim capillary nyhuv. Lub sij hawm - cov no yog cov tib cov hlab ntsha, tsuas heev me me. Nyob rau hauv tag nrho cov xau nws yog cai nyob rau hauv cov zaubmov.

Raising lub H 2 O molecules tshwm sim txawm tus quab yuam ntawm lub ntiajteb txawj nqus. Lifting siab nyob rau hauv lub hom ntawm cov av. Nyob rau hauv av nplaum xau, nws yuav ua tau mus 1.5 m, thiab nyob rau hauv zeb -. 30 cm Qhov no txawv muaj feem xyuam rau pore loj. lawv yog heev loj, ntsig txog, lub capillary quab yuam yog me me nyob rau hauv zeb xau. Av nplaum hais yog me me. Qhov no txhais tau tias lub pores nyob rau hauv lub hauv av yuav tsum tau me me, thiab cov nyhuv - yog muaj zog.

tswv yim teeb meem

Capillary txiav txim nyob rau hauv cov av yuav tsum tau raug xam tias thaum tsim thiab tso lub hauv paus. Raws li hais saum toj no, nyob rau hauv clayey av noo noo tej zaum yuav sawv mus rau 1.5 m. Yog hais tias lub hauv paus yog pw hauv qab no lub cim, nws yuav nyob rau hauv cov dej. Qhov no, nyob rau hauv lem, muaj ib tug tsis zoo feem nyob rau hauv nws cov kabmob muaj peev xwm. Yuav kom tiv thaiv lub hauv paus los ntawm dej yuav tsum tau waterproofing gasket.

qhob

Qhov no cov ntaub ntawv uas twb siv nyob rau hauv kev tsim kho ntawm lub hauv paus. Nyob rau hauv vaj tse, raws li zoo raws li nyob rau hauv cov av, capillary kev txiav txim yog tseem tau vim hais tias cov khoom no muaj ib tug ntxeem tau qauv. Lub pores dej kis dej thiab upwards.

Yog hais tias lub ib lub hauv paus yuav tso siab rau lub ntub av, cov dej yuav sawv, mus txog lub hauv paus thiab mus dua. Qhov no yuav ua rau kev puas tsuaj ntawm tag nrho cov lug. Yuav kom tiv thaiv xws txim waterproofing yog pw nruab nrab ntawm cov av thiab cov tib lub hauv paus, hauv paus thiab phab ntsa ntawm lub tsev.

Ultrasonic capillary nyhuv

Qhov no tshwm sim tau raug nrhiav tau los ntawm Academician Konovalov. Tus kws tshawb fawb nqa tawm ib tug ncaj yooj yim xyaum ua tej yam. Rau emitter generator nws txuas ib lub taub ntim dej, tej lub capillary raj rau hauv nws. Lub ntuj kev cai ntawm lub hwj chim pib ua hauj lwm nyob rau hauv H 2 O, ua ib tug lifting ntawm nws mus rau ib tug tej theem. Tom qab xa cov nyob rau hauv ultrasonic generator dej ua ib tug ntse jerk. Qhov no kev Academician dua, ntxiv rau cov xim raj mis. Tom qab xa cov nyob rau hauv generator nyob rau hauv lub raj twb pom meej meej thiab lub tshuab nqus tsev units ntawm sawv tsis.

tshawb pom

Academician Konovalov pom tias yog hais tias tus dej nyob rau hauv lub capillary txawv nyob rau hauv tus ntawm ultrasonic lub hwj chim, cov nyhuv ntawm raising cov theem tsub kom dramatically. Lub qhov siab ntawm sab ua loj tej zaum ob peb kaum tawm lub sij hawm. Txawm li cas los, nws tau nce ceev thiab nqa.

Tus kws tshawb fawb muaj peev xwm los ua pov thawj experimentally hais tias cov kua tsis thawb lub capillary rog, thiab tawg siab, thiab sawv tsis. Ultrasound lossi compresses ncej thiab kim nws. Cov txheej txheem yuav muaj mus ntxiv txog lub caij thaum lub siab tsob nyob rau hauv tus ntawm tsis, yog balanced los ntawm cov kua theem.

daim ntawv thov

Lub ultrasonic nyhuv yog siv nyob rau hauv uas tsis yog-tug xeem txoj kev soj ntsuam nrog rau kev tso tawm ntawm semiconductor khoom. Nyob rau hauv ua ntej lawm lub sij hawm, los tswj transistor to tsev nyob chav tsev twb muab tso rau peb hnub nyob rau hauv ib tug acetone da dej. Kev siv ntawm ultrasound yuav txo tau lub sij hawm mus 3-9 feeb. Qhib Konovalov siv rau impregnation ntawm lub windings ntawm hluav taws xob insulating compositions nyob rau hauv dyeing fabrics - peb txog qhov twg tsim nyog dej allergic rau hauv lub pores.

kev co nyhuv

Thaum lub sij hawm hlau txiav, tshwj xeeb tshaj yog thaum muaj kev kub ceev, siv lubricating coolants. Vim cov yuav txo tau ntawm kev sib txhuam muab, lub cuab tam kub txo, kev txhim kho nws coj kuj. Nws yog lub npe hu hais tias ib tug kua yuav txeem nyob rau hauv lub cutter. Raws li qhov no tshwm sim, yog hais tias nws yog nrees nias tiv thaiv cov workpiece ntawm ib tug siab ntawm 200 kg / cm², thiab nyob rau hauv xws tej yam kev mob, cov roj nplua nyeem yuav tsum tau moog opposite los ntawm lub cutter?

Yuav kom piav qhia txog qhov no tshwm sim yog lub capillary nyhuv yog tsis tau. Ua ntej ntawm tag nrho cov, lub dag lub zog thiab lub dej raising ceev yog tsawg heev li. Nyob rau hauv tas li ntawd, lawv yog vim nto nro. Lifting siab txo considerably nrog ua kub, uas nyob rau hauv tej cheeb tsam yuav ua tau mus txog rau 300 ° C. Konovalov muaj peev xwm los ua pov thawj hais tias, nyob rau hauv tas li ntawd mus rau lub capillary nyhuv, los ntawm kev co ntawm lub tshuab. Nws tshwm sim nyob rau hauv cov kev ntawm lub workpiece. Qhov no ntseeg muaj ib tug ntau dua zaus thiab me me amplitude.

Piav ntawm tej yam tshwm sim

zaum rau ib tug heev lub sij hawm ntev yuav tsis piav qhia txog lub flowering muaj koob muaj npe primrose ua ntej qhov av qeeg. Paj nws hlob nyob txog. Java. Thiab cov neeg hauv zos xav txog nws ib tug zog ntawm cov teeb meem. Raws li Konovalov, ib tug haib poob siab tawv preceded by me ntsis txawv zaus, ultrasonic, xws li hloov mus hloov los. Lawv pab mus rau acceleration ntawm txav ntawm as sib txuas ntawm lub ntsiab ntawm cov nroj tsuag qhib metabolic dab, uas saib kuas flowering.

xaus

Raws li koj tau pom, lub capillary nyhuv - ib qho ntawm feem ntau tej yam ntuj tso phenomena. Stems, nplooj, lub cev, ceg ntawm txawv cov nroj tsuag yog imbued nrog ib tug lossis loj tus naj npawb ntawm raws. Lawv tauj mus rau tag nrho cov kabmob as tebchaw. Lub capillary cov nyhuv yog siv nyob rau hauv ntau yam spheres ntawm tib neeg kev ua si: ntawm tarred kev tsheb ciav hlau ties thiab cov creation ntawm tshwj xeeb tej hub khoom impregnated nrog molten co, rau pickles.

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