Bincike da aikace-aikace na babban zafin jiki shiryawa

Bincike da aikace-aikace na babban marufin bawul ɗin zafin jiki zafin aiki na bawul ɗin shine 425 ~ 550 ℃ don babban zazzabi ⅰ sa (wanda ake magana da shi azaman PI grade). Babban abu na PI aji bawul ne "high zafin jiki sa Ⅰ matsakaici carbon chromium nickel rare duniya titanium ingancin zafi-resistant karfe" a ASTMA351 misali CF8 matsayin tushe. Tun da darajar PI takamaiman kalma ce, manufar babban zafin jiki bakin karfe (P) an haɗa shi anan. Saboda haka, idan matsakaicin aiki ruwa ne ko tururi, ko da yake kuma akwai high zafin jiki karfe WC6 (t≤540 ℃) ko WC9 (t≤570 ℃), a sulfur man fetur, ko da yake kuma akwai high zafin jiki karfe C5 (ZG1Cr5Mo), amma a nan. ba za a iya kiran su PI grade. Bincike da aikace-aikacen babban fakitin bawul ɗin zafin jiki Valve samfurin inji ne na gama gari a masana'antar zamani. A matsayin maɓalli mai mahimmanci a tsarin watsa ruwa, ana amfani da shi a cikin tukunyar jirgi, bututun tururi, tace mai, masana'antar sinadarai, wuta da ƙarfe, saboda yankewa, tsari, ƙa'idar matsa lamba, shunting da sauran ayyuka. Masana'antu na zamani sun gabatar da buƙatu mafi girma da girma don amincin hatimin bawul. Ayyukan hatimi shine mahimman ƙididdiga na fasaha don kimanta ingancin samfuran bawul. Babban bawul ɗin zafin jiki yana nufin bawul ɗin wanda zafin aiki ya fi 250 ℃. Fasahar rufewar filler na tushe na bawul ɗin zafin jiki ya kasance babbar matsala da ba a warware ta shekaru da yawa ba, kuma yana ɗaya daga cikin hanyoyin da ba su da ƙarfi don haɓaka amincin bawul ɗin. Common high zafin jiki bawul kara shiryawa hatimi gaba daya wanzu kasa ko wuce kima hatimi, bawul tushe a cikin dogon gudu da sauki yayyo, da yayyo na inflammable, fashewar, guba da sauran abubuwa masu hatsari ba kawai shuka shuki da kuma asarar tattalin arziki, amma kuma haifar da gurbacewar muhalli. har ma da hatsarurrukan da ma'aikata suka yi, ga na'urar suna da babbar haɗari. Na farko, ka'idar hatimin bawul ɗin bawul ɗin hatimin hatimin hatimin bawul ɗin bawul ɗin yana da mahimmancin ƙima don kimanta inganci da aikin bawul. Yanzu mafi yawan nau'in bawul ɗin sarrafawa ko babban bututun bututu da hatimin hatimi don hatimin lamba, saboda tsarinsa mai sauƙi, haɗuwa mai sauƙi da sauyawa, ƙarancin farashi kuma ana amfani dashi. Bawul mai tushe da yoyon tattara kaya abu ne na gama gari. Dalilin da yasa tattarawa na iya taka rawar rufewa, ka'idodinsa yanzu akwai manyan ra'ayoyi biyu na hatimi, bi da bi suna haifar da tasiri da tasirin maze. Tasirin ɗaukar kaya yana nufin marufi tsakanin filler da kara, matsi shiryawa da kuma ƙarƙashin tasirin mai na waje, saboda tashin hankali a cikin wurin tuntuɓar tushe don samar da Layer na membrane na ruwa, yin tattarawa da nau'in nau'in kama da na na sliding bearing, dangantakar da ke tsakanin irin wannan marufi da kara ba za ta kasance saboda wuce gona da iri da lalacewa ba, saboda fim ɗin ruwa yana wanzu a lokaci guda, shiryawa da lokacin bututun bawul a cikin yanayin rufewa. Labyrinth packing sakamako yana nufin m mataki na kara ba zai iya kai ga micro matakin, shiryawa da kuma bawul tushe ne kawai jera hadin gwiwa kuma ba su da cikakken Fit, da shiryawa kuma ko da yaushe akwai wani sosai kananan rata tsakanin bawul kara, kuma saboda. na asymmetry incision tsakanin taron tattarawa, waɗannan giɓi sun kafa maze tare da tare, matsakaici, wanda yawancin throttling, mataki-ƙasa, kuma ya kai matsayin rufewa. Na labyrinth sakamako yana nufin bawul tushe shirya hatimin matakin matakin matakin digiri ba zai iya isa matakin micro ba, ƙaramin rata tsakanin kara da tattarawa wannan shine haƙiƙanin wanzuwar, ba zai iya kawar da shi ba, idan daga wannan yanayin don aiwatar da ƙirar tattarawa, sau da yawa tasirin ba zai yuwu ba. kyakkyawar manufa, wanda ke haifar da ainihin yanayin ɗigon sararin samaniya ko ɗigon wutar lantarki. Seling kafofin watsa labarai ta hanyar shiryawa da kuma kara yayyo inji yana da da yawa siffofin: lalata rata yayyo inji, porous yayyo inji, ikon yayyo inji, da dai sauransu. hanyoyin zubar da ruwa, kuma an gabatar da tsarin ingantawa mai amfani. Biyu, na yau da kullum shiryawa nau'i da aikace-aikace 1, teflon pan tushen Polytetrafluoroethylene kwanon rufi Tushen an yi shi da tsarki POLYTETRAFluOROethylene DISPERsing guduro a matsayin albarkatun kasa, da farko sanya daga albarkatun kasa fim, sa'an nan ta hanyar karkatarwa, saƙa a cikin wani karfi kwanon rufi tushen. Wannan nau'in tushen faifai ba tare da wasu abubuwan ƙari ba, ana iya amfani da su a cikin abinci, magunguna, fiber ɗin sinadarai masu yin takarda da sauran buƙatun tsafta mai ƙarfi, kuma suna da matsakaicin lalata mai ƙarfi akan bawul, famfo. Iyakar aikace-aikace: Yi amfani da zafin jiki ba fiye da 260 ℃, yi amfani da matsa lamba ba fiye da 20MPa, pH darajar: 0-14. 2, Faɗaɗɗen faifan faifan faifan faifan Faɗaɗɗen faifan faifan faifan faifai kuma an san shi da tushen fayafai mai sassauƙa ta amfani da madaidaiciyar waya mai sassauƙa da aka saka ta cikin zuciya. Tushen faifan faifan faifan faɗo yana da fa'idodin kyawawan lubricity na kai da haɓakar thermal, ƙaramin juzu'i mai ƙarfi, haɓaka mai ƙarfi, taushi mai kyau, ƙarfi mai ƙarfi, da tasirin kariya akan shaft da sanda. Iyakar aikace-aikace: Yi amfani da zafin jiki ba fiye da 600 ℃, yi amfani da matsa lamba ba fiye da 20MPa, pH darajar: 0-14. 3. Ingantattun tushen graphite coil Tushen ingantacciyar na'urar graphite an saka ta da fiber gilashi, waya ta jan karfe, waya ta bakin karfe, waya nickel, caustic nickel gami waya da sauran kayan da aka karfafa ta tsantsar fadada waya mai graphite. Tare da halaye na graphite mai faɗaɗa, da haɓaka mai ƙarfi, taushi mai kyau, ƙarfi mai ƙarfi. Haɗe tare da tushen braided gabaɗaya, yana ɗaya daga cikin ingantattun abubuwan rufewa don magance matsalar yawan zafin jiki da matsa lamba mai ƙarfi. Iyakar aikace-aikace: Yanayin aiki ba fiye da 550 ℃, aiki matsa lamba ba fiye da 32MPa, pH darajar: 0-14. Tushen fayafai shine ingantacciyar sigar tushen faɗuwar faifan faifan graphite, wanda shine kayan hatimi mai kyau sosai. Abin da ke sama ya lissafa nau'ikan tushen fayafai da yawa na gama gari. A cikin ainihin tsarin samarwa, za a sami wasu nau'ikan tushen fayafai waɗanda aka haɓaka don yanayin aiki na musamman. Misali, kyakkyawan juriya na sinadarai na tushen tushen fiber na fiber aramid; Ya dace da babban juyi juyi axis arylon carbon fiber gauraye tushen murɗa, da sauransu, wannan takarda ta iyakance ga sarari, ba cikakken gabatarwar ba. Uku, tsarin haɗar bawul na gama gari da zaɓi Tsarin hatimi na gama gari na gama gari ya ƙunshi farantin matsi, gland, spacer da tattarawa. Domin samun sakamako mai kyau na hatimi, ana buƙatar tattarawa gabaɗaya don samun tsari mai yawa, kwanciyar hankali mai kyau na sinadarai, ƙarancin juzu'i. Gabaɗaya, zafin jiki yana ƙasa da 200 ℃, filler galibi ana zaɓar tushen diski na polytetrafluoron, wanda ke da halayen babban lubrication, rashin danko, rufin lantarki da juriya mai kyau, kuma ana amfani dashi a cikin man fetur, sinadarai, magunguna da sauran su. filayen. An zaɓi tushen diski na graphite don juriya mai girman zafin jiki, lubrication na kai da ƙarancin juzu'i a yanayin zafi daga 200 zuwa 450. An haɓaka fayafai na faifai bisa ga amfani da rarrabuwa daban-daban, a cikin aikace-aikacen aikace-aikacen, ana iya zaɓar filaye bisa ga ainihin yanayin aiki na nau'in nau'in faifan faifan da ya dace, kamar 250 ℃, yanayin ƙarancin matsa lamba na iya zaɓar faɗuwar faifan faifan hoto, matsakaici da matsa lamba mai ƙarfi na iya zaɓar faifan faifan faifan haɓakawa ko haɗin duka biyun. Hudu, babban zafin jiki shiryar bawul tsarin yayyo bincike Karkashin high zafin jiki yanayi, kamar zabar graphite fayafai tushen hatimin tsarin, yana da sauki bayyana yabo. Dalilan sune kamar haka: Tushen faifan faifan graphite yana cushe a cikin akwatin tattarawa, kuma ana amfani da matsi na axial akan marufi ta hanyar ƙara maƙallan ɗamara akan marufi. Saboda marufi yana da wani nau'i na filastik, matsa lamba axial bayan matsa lamba na radial da micro nakasawa, rami na ciki da kara ya dace sosai, amma wannan dacewa ba daidai ba ne sama da ƙasa. Dangane da rarraba matsi da maɗauri da ƙarfi, za a iya ganin cewa matsa lamba na sama da na ƙasa a cikin akwati ba daidai ba ne. Nakasar filastik na sassa biyu na marufi ba daidai ba ne kai tsaye, kuma yana da sauƙi a sami wuce kima ko rashin isashen hatimi tsakanin marufi da bututun bawul. A lokaci guda, juzu'i tsakanin shiryawa da bututun bawul zai kasance da yawa lokacin da ƙarfin radial matsa lamba kusa da gland yana da yawa, kuma bututun bawul da marufi suna da sauƙin sawa a nan. A cikin yanayin zafi mai zafi, mafi girman zafin jiki, mafi girma fadada tushen faifan graphite, juzu'i kuma yana ƙaruwa, ɓarkewar zafi da zafi mai zafi ke haifarwa ba daidai ba ne, haɓaka ƙimar lalacewa na kara da tattarawa, wanda kuma shine babban mahimmanci. dalilin high zafin jiki bawul shiryawa yayyo. Biyar, babban madaidaicin bawul ɗin shirya kayan haɓaka ƙirar ƙirar Valve a ƙarƙashin yanayin zafin jiki yana da haɗari musamman ga ɗigo, kuma babban marufin zafin jiki gabaɗaya ya dogara ne akan faɗuwar faifan graphite. Ƙunƙarar kai da kumburin faɗuwar graphite shiryawa yana da kyau, haɓakar haɓakawa yana da girma, amma rashin lahani yana da rauni, juriya mara ƙarfi, gabaɗaya an shigar da shi a tsakiyar ɓangaren akwatin tattarawa, don hana haɓakar fakitin graphite ta hanyar tattara gland. da kuma kasa matsa lamba kushin extrusion lalacewa; Za a iya shigar da tushen faifan faifan da aka inganta a sama da kasa saboda yana ƙunshe da waya ta nickel kuma yana da ƙarfi kuma yana jurewa extrusion. Ko da yake haɗuwa da faɗaɗa graphite da ingantattun faifan faifan faifan faifan hoto suna warware wani ɓangare na ɗigon tattarawa a babban zafin jiki. Amma ga bawul mataki ne mafi m yanayin aiki, graphite Disc tushen lalacewa rate ne in mun gwada da high, da yin amfani da wani lokaci bayan bukatar kara tightening kusoshi a kan shaƙewa akwatin, domin manual da dubawa sun kawo babban matsala. Dangane da la'akari da matsalar da ke sama, mun haɗu da wallafe-wallafen a gida da waje da kuma kwarewar da aka tara a cikin 'yan shekarun nan don haɓaka tsarin tsararrun bawul mai ramawa, musamman ga yanayin aiki daban-daban, babban zafin jiki da ƙananan matsa lamba da yawan zafin jiki da matsa lamba, haɓaka tsarin shirya kayan zafi daban-daban da aka yi niyya, warware bawul a ƙarƙashin yanayin zafi mai sauƙi mai sauƙi. Babban zafin jiki da nau'in matsa lamba, ta amfani da bazarar zobe na ramawa na musamman da haɗin tushen fayafai na graphite. Matsin aiki bai yi girma ba, don haka an soke hannun tattarawa. Ana ƙara maɓuɓɓugar zobe na musamman na ramawa zuwa ƙasan akwatin shaƙewa. Lokacin shigarwa, ana buƙatar ƙarfafa kusoshi tare da wani riga-kafi. Ko da graphite shiryawa da kuma kara bayyana gogayya lalacewa, zobe spring iya nan da nan yin daidai diyya gyara don tabbatar da yayyo daga cikin bawul. Nau'in high zafin jiki da kuma high matsa lamba, wannan shi ne wani irin ci-gaba shiryawa tsarin, rungumi dabi'ar diski spring da jefa spring waje biyu ramu tsarin, zai iya kauce wa amfani da high zafin jiki musaki spring, irin wannan yanayin, musamman a high zafin jiki, high matsa lamba. gazawar maki ramuwa a wani yanki, wani rukunin ramuwa har yanzu yana da tasiri, duka biyun ba tsangwama ba, diyya ɗaya amma a lokaci guda don ɗaukar aikin. Har ila yau, hatimin bazara na diski yana sauƙaƙe amfani a cikin matsanancin yanayi na waje, kuma tsarin waje na maki biyu na ramuwa yana sauƙaƙe sauyawa ba tare da cire duk akwatin shaƙewa ba, haɓaka inganci da sauƙi na aiki. Bayan bin diddigin mai amfani na dogon lokaci, irin wannan nau'in tsarin tattarawa don babban zafin jiki, babban matsi mai tushe don hana tasirin yabo a bayyane yake, tsawon rayuwar sabis.