Ubushakashatsi no gushyira mubikorwa ubushyuhe bwo hejuru bipakira

Ubushakashatsi no gukoresha ubushyuhe bwo hejuru bipfunyika Ubushyuhe bwo gukora bwa valve ni 425 ~ 550 ℃ kubushyuhe bwo hejuru ⅰ urwego (rwitwa PI urwego). Ibikoresho by'ingenzi bya PI yo mu rwego rwa PI ni "urwego rwo hejuru rw'ubushyuhe Ⅰ Hagati ya karubone chromium nikel idasanzwe yisi titanium nziza yubushyuhe bwihanganira ubushyuhe" muri ASTMA351 isanzwe CF8 nkibishingiro. Kubera ko urwego rwa PI ari ijambo ryihariye, igitekerezo cyubushyuhe bwo hejuru butagira ibyuma (P) burimo hano. Kubwibyo, niba uburyo bukora ari amazi cyangwa ibyuka, nubwo nanone haboneka ibyuma byo hejuru ubushyuhe bwa WC6 (t≤540 ℃) cyangwa WC9 (t≤570 ℃), mumavuta ya sulfure, nubwo biboneka nicyuma cyo hejuru C5 (ZG1Cr5Mo), ariko hano ntishobora kubitwa PI urwego. Ubushakashatsi no gushyira mubikorwa ubushyuhe bwo hejuru bipakira Valve nigicuruzwa gisanzwe gikora inganda zigezweho. Nkibintu byingenzi bigenzura muri sisitemu yo gukwirakwiza amazi, ikoreshwa cyane cyane mubyuma, umuyoboro wamazi, gutunganya peteroli, inganda zikora imiti, umuriro na metallurgie, kubera guhagarikwa kwayo, kugenzura, kugenzura igitutu, guhagarika no gukora indi mirimo. Inganda zigezweho zashyize imbere ibisabwa hejuru kandi bisabwa kugirango kwizerwa kwa kashe ya valve. Imikorere ya kashe nigipimo cyingenzi cya tekiniki yo gusuzuma ubuziranenge bwibicuruzwa. Ubushyuhe bwo hejuru bwerekeza kuri valve ifite ubushyuhe bwo gukora burenze 250 ℃. Ikoreshwa rya kashe yuzuza urwego rwubushyuhe bwo hejuru rwabaye ikibazo gikomeye kitarakemuka imyaka myinshi, kandi nimwe mumihuza idakomeye yo kunoza ubwizerwe bwa valve. Ikirangantego gisanzwe cya valve igipfunyika kashe isanzwe ibaho kashe idahagije cyangwa irenze urugero, igiti cya valve mugihe kirekire cyoroshye kumeneka, kumeneka kwaka, guturika, uburozi nibindi bintu biteje akaga ntabwo guhagarika ibihingwa gusa no gutakaza ubukungu, ahubwo binatera umwanda kubidukikije, ndetse n'abakozi bahitanwa nimpanuka, kubikoresho bikoresha ingaruka zikomeye. Ubwa mbere, ihame ryo gufunga kashe ya kashe Ikimenyetso cyo gufunga kashe ni indangagaciro yingenzi yo gusuzuma ubuziranenge n'imikorere ya valve. Ubu ibyinshi mubigenzurwa na valve cyangwa igiti rusange hamwe na kashe yo gupakira kashe yo guhuza, kubera imiterere yoroshye, guterana byoroshye no kuyisimbuza, igiciro gito kandi irakoreshwa. Valve stem hamwe no gupakira kumeneka nibintu bisanzwe. Impamvu ituma gupakira bishobora kugira uruhare mugushiraho ikimenyetso, ihame ryacyo ubu hariho ibintu bibiri byingenzi bifunga kashe, kimwe ningaruka n'ingaruka. Ingaruka yo gupakira bivuga gupakira hagati yuzuza nigiti, gukanda bipfunyika hamwe no gusiga amavuta yo hanze, kubera impagarara mumwanya uhuza uruti kugirango ugire urwego rwibintu byamazi, kora ipaki nuburyo bwibiti bisa nibya kunyerera, isano iri hagati yo gupakira nigiti ntigishobora guterwa no guterana gukabije no kwambara, kubera ko firime yamazi ibaho icyarimwe, gupakira hamwe nigihe cya valve mugihe gifunze. Ingaruka yo gupakira ya Labyrint isobanura urwego rworoshye rwuruti ntirushobora kugera kurwego rwa micro, gupakira hamwe nigiti cya valve gifatanye igice gusa kandi ntigikwiranye neza, gupakira kandi burigihe hariho icyuho gito cyane hagati yikibabi, kandi kuko ya asimmetrie yo gutemagura hagati yinteko yo gupakira, ibyo byuho byashizeho akajagari hamwe hamwe, hagati, aho guterana inshuro nyinshi, kumanuka-hasi, no kugera kumurimo wo gufunga. Ingaruka ya labyrint yerekeza kuri valve stem ipakira kashe yubuso urwego ntirushobora kugera kurwego rwa micro, ikinyuranyo gito hagati yuruti no gupakira ibi ni ukubaho, ntigushobora gukuraho, niba uhereye kuriyi ngingo kugirango ukore igishushanyo mbonera, akenshi ingaruka ntabwo ari byiza cyane, bitera ibintu byibanze byumwanya cyangwa kumeneka kwamashanyarazi. Gufunga itangazamakuru hifashishijwe uburyo bwo gupakira no gutemba kw'ibiti bifite uburyo bwinshi: uburyo bwo kumena icyuho cya ruswa, uburyo bwo kumeneka, uburyo bwo kumeneka amashanyarazi, nibindi. uburyo bwo kumeneka, hamwe na gahunda ifatika yo kunoza ishyirwa imbere. Babiri, ubwoko busanzwe bwo gupakira hamwe no kubishyira mubikorwa 1, umuzi wa teflon umuzi Polytetrafluoroethylene umuzi wibiti bikozwe muri POLYTETRAFluOROethylene DISPERsing resin nkibikoresho fatizo, ubanza bikozwe muri firime yibikoresho, hanyuma ubinyujije mu kuzunguruka, kuboha mumizi ikomeye. Ubu bwoko bwa disiki ya disiki idafite izindi nyongeramusaruro, irashobora gukoreshwa mubiribwa, imiti, gukora impapuro za fibre chimique nibindi bisabwa kugira isuku nyinshi, kandi bifite uburyo bukomeye bwo kwangirika kuri valve, pompe. Igipimo cyo gusaba: Koresha ubushyuhe butarenze 260 ℃, koresha igitutu kitarenze 20MPa, pH agaciro: 0-14. 2. Ikwirakwizwa rya grafite ya disiki ifite ibyiza byo kwifata neza hamwe nubushuhe bwumuriro, coefficient de fraux, guhuza byinshi, ubworoherane bwiza, imbaraga nyinshi, ningaruka zo gukingira igiti ninkoni. Igipimo cyo gusaba: Koresha ubushyuhe butarenze 600 ℃, koresha igitutu kitarenze 20MPa, pH agaciro: 0-14. 3. Kuzamura imizi ya grafite ya grafite Igicapo cyongerewe imbaraga cya grafite ikozwe na fibre yikirahure, insinga z'umuringa, insinga zidafite ingese, insinga ya nikel, caustic nikel alloy wire nibindi bikoresho bishimangirwa ninsinga ya grafite yagutse. Hamwe nibiranga grafite yagutse, hamwe nuburyo bwinshi, ubworoherane bwiza, imbaraga nyinshi. Ufatanije nu mizi rusange ikozweho, nikimwe mubintu bifatika bifunga kugirango bikemure ikibazo cyubushyuhe bwo hejuru hamwe no gufunga umuvuduko mwinshi. Igipimo cyo gusaba: Ubushyuhe bwo gukora butarenze 550 ℃, igitutu cyo gukora kitarenze 32MPa, pH agaciro: 0-14. Imizi ya disiki ni verisiyo yongerewe ya grafite ya disiki yagutse, nikintu cyiza cyane cyo gufunga. Ibyavuzwe haruguru byerekana ubwoko butandukanye bwo gupakira disiki. Mubikorwa nyabyo byo kubyara, hazabaho ubundi bwoko bwo gupakira disiki yatunganijwe kubikorwa bidasanzwe byakazi. Kurugero, imiti irwanya imiti ya aramid fibre coil umuzi; Bikwiranye nu mutwaro muremure wo kuzenguruka axis arylon karubone fibre ivanze coil umuzi, nibindi, iyi mpapuro igarukira kumwanya, ntabwo ari intangiriro irambuye. Bitatu, ibipapuro bisanzwe byo gupakira hamwe no gutoranya Imiterere isanzwe yo gupakira kashe igizwe ahanini nicyapa cyumuvuduko, gland, spacer hamwe nugupakira. Kugirango ugere ku kashe keza, gupakira birasabwa kugira imiterere yuzuye, imiterere myiza yimiti, coefficient de fraisse nkeya. Muri rusange, ubushyuhe buri munsi ya 200 ℃, uwuzuza akenshi atoranywa umuzi wa polytetrafluoron, ufite ibimenyetso biranga amavuta menshi, kutagira ubukonje, kubika amashanyarazi no kurwanya gusaza, kandi bikoreshwa muri peteroli, imiti, imiti n’ibindi. imirima. Imizi ya Graphite yatoranijwe kugirango irusheho guhangana nubushyuhe bwo hejuru, kwiyitirira amavuta hamwe na coefficient de fraisse nkeya ku bushyuhe buri hagati ya 200 na 450. Disiki ya Graphite yakozwe hifashishijwe imikoreshereze itandukanye, mubikorwa bifatika, ibyuzuzwa birashobora gutoranywa ukurikije imiterere nyayo yakazi yubwoko bukwiye bwa disiki ya grafite, nka 250 ℃, imiterere yumuvuduko muke irashobora guhitamo disiki yagutse ya disikuru, iciriritse nigitutu kinini gishobora guhitamo disiki ya grafite cyangwa guhuza byombi. Icya kane, ubushyuhe bwo hejuru bwapakiye gupakira imiterere isesengura Kumiterere yubushyuhe bwo hejuru, nko guhitamo igishushanyo mbonera cya disiki ya grafite, biroroshye kugaragara. Impamvu nizi zikurikira: Imizi ya disiki ya grafite yapakiwe mumasanduku yo gupakira, kandi igitutu cya axial kumupaki gikoreshwa mugukomeza bolt ifata kuri glande. Kuberako gupakira bifite urwego runaka rwa plastike, umuvuduko wa axial nyuma yumuvuduko ukabije wa radiyo na deformasiyo ya micro, umwobo wimbere nigiti gikwiranye cyane, ariko ibi ntibikwiye hejuru no hepfo. Ukurikije ikwirakwizwa ryumuvuduko wo gupakira hamwe ningufu zo gufunga, birashobora kugaragara ko umuvuduko wapakira hejuru hamwe nudupaki two hepfo mugisanduku cyo gupakira ntabwo ari kimwe. Imiterere ya plastike yibice byombi byo gupakira ntabwo ihuye neza, kandi biroroshye kugira kashe ikabije cyangwa idahagije hagati yipakira nigiti cya valve. Muri icyo gihe, ubushyamirane buri hagati yo gupakira hamwe nigiti cya valve bizaba byinshi mugihe imbaraga zo guhunika imirasire hafi ya gland ari nyinshi, kandi igiti cya valve nugupakira byoroshye kwambara hano. Ku bijyanye n'ubushyuhe bwo hejuru, uko ubushyuhe buri hejuru, niko kwaguka kwinshi mu mizi ya disiki ya grafite, guterana amagambo nabyo biriyongera, kugabanuka k'ubushyuhe guterwa n'ubushyuhe bwo hejuru ntabwo ari igihe, byihutishe igipimo cyo kwambara kw'ibiti no gupakira, ari nacyo gikuru impamvu yubushyuhe bwo hejuru bwa valve gupakira kumeneka. Icya gatanu, ubushyuhe bwo hejuru bwo gupakira ibintu byubaka igishushanyo mbonera cya Valve gupakira mubihe by'ubushyuhe bwo hejuru cyane cyane bikunda kumeneka, kandi gupakira ubushyuhe bwinshi muri rusange bishingiye kuri disiki yagutse. Kwiyoroshya no kubyimba kwagutse rya grafite ni byiza, coefficient yo kwisubiramo ni ndende, ariko ibibi biroroshye, birwanya ubukana buke, ubusanzwe bishyirwa mugice cyo hagati yipaki, kugirango wirinde kwaguka kwipakira rya grafite mugupakira gland. no kwangiza igitutu cyo hasi cyangiritse; Imizi ya grafite ya disiki irashobora gushyirwaho hejuru no hepfo kuko irimo insinga ya nikel kandi irakomeye kandi irwanya gusohora. Nubwo guhuza grafite yagutse hamwe na disiki ya grafite yongerewe imbaraga ikemura igice cyo gupakira kumashanyarazi hejuru. Ariko kubikorwa bya valve nibikorwa byinshi mubikorwa byakazi, igipimo cya disiki ya grafite ya disiki ni ndende cyane, gukoresha igihe nyuma yo gukenera gukomera kumatiku yuzuye, kubitabo no kugenzura byazanye ikibazo kinini. Dushingiye ku gutekereza ku kibazo cyavuzwe haruguru, twahujije ubuvanganzo mu gihugu ndetse no mu mahanga ndetse n'ubunararibonye bwakusanyirijwe mu myaka yashize kugira ngo dutezimbere uburyo bwo gupakira indabyo, cyane cyane ku mirimo itandukanye, ubushyuhe bwinshi n'umuvuduko muke n'ubushyuhe bwinshi n'umuvuduko mwinshi, Iterambere ryintego zitandukanye zubushyuhe bwo gupakira, gukemura valve munsi yubushyuhe bwo hejuru bworoshye kumeneka. Ubushyuhe bwo hejuru hamwe nubwoko bwumuvuduko muke, ukoresheje impeta idasanzwe yindishyi yimvura hamwe na grafite ya disiki ya grafite. Umuvuduko wakazi ntabwo uri hejuru, bityo amaboko yo gupakira arahagarikwa. Impeta idasanzwe yindishyi yongewe kumurongo wibintu byuzuye. Mugihe ushyiraho, bolts igomba gukomera hamwe na preload runaka. Nubwo gupakira ibishushanyo hamwe nigiti bigaragara ko byambaye ubusa, impeta yimpeta irashobora guhita ihindura indishyi zijyanye no kwemeza ko valve yamenetse. Andika ubushyuhe bwo hejuru hamwe numuvuduko mwinshi, ubu ni ubwoko bwa sisitemu yo gupakira yateye imbere, ifata isoko ya disiki hanyuma igatera amasoko yo hanze inshuro ebyiri indishyi, irashobora kwirinda ibyiza byubushyuhe bwo hejuru buhagarika isoko, ubu bwoko, cyane cyane mubushyuhe bwinshi, umuvuduko mwinshi kunanirwa ingingo yindishyi mukarere kamwe, irindi tsinda ryindishyi riracyakorwa neza, haba kutivanga, indishyi imwe ariko icyarimwe kubikorwa byo gupakira. Ikirangantego cya disiki kandi cyoroshya gukoresha mubihe bibi byo hanze, kandi imiterere yinyuma yibice byombi byindishyi byorohereza gusimburwa udakuyeho agasanduku kuzuye, kunoza imikorere no koroshya imikorere. Nyuma yigihe kirekire cyabakoresha bakurikirana, ubu bwoko bwo gupakira imiterere yubushyuhe bwo hejuru, umuvuduko mwinshi uruti rwo gufunga kugirango wirinde ingaruka zimeneka biragaragara, ubuzima bwa serivisi ndende.