Valve sealing surface lalacewa, yadda za a gyara bawul ruwa gwajin amintattun hanyoyin aiki

Valve sealing surface lalacewa, yadda za a gyara bawul ruwa gwajin amintattun hanyoyin aiki

Bayan yin amfani da bawul ɗin na dogon lokaci, za a sawa saman rufe diski da wurin zama kuma za a rage ƙarfin. Gyara wurin rufewa babban aiki ne mai mahimmanci. Babban hanyar gyarawa shine niƙa. Don saman da aka sawa a rufe, yana fara hawa sama bayan ya juya aiki sannan a nika. Bawul niƙa ya haɗa da: tsaftacewa da tsarin dubawa; Tsarin nika
Bayan yin amfani da bawul ɗin na dogon lokaci, za a sawa saman rufe diski da wurin zama kuma za a rage ƙarfin. Gyara farfajiyar hatimi babban aiki ne mai mahimmanci. Babban hanyar gyarawa shine niƙa. Domin saman da aka sawa a rufe, yana fara hawa sama bayan ya juya sarrafa sannan a nika.
Nika na bawul ya haɗa da:
Tsarin tsaftacewa da dubawa;
Tsarin nika;
Tsarin dubawa.
Tsarin tsaftacewa da dubawa
Tsaftace saman rufewa a cikin kwanon mai, yi amfani da wakili mai tsaftacewa, wanke yayin da ake duba lalacewar farfajiyar. Za a iya aiwatar da ƙwanƙwasa ƙwanƙwasa waɗanda ke da wuya a tantance ta hanyar tsirara ta hanyar gano tint.
Bayan tsaftacewa, ya kamata a duba fayafai ko bawul ɗin ƙofar don matsewar saman wurin zama, ta amfani da ja da fensir lokacin dubawa. Yi amfani da jan gubar don gwada ja, duba wurin rufewa, ƙayyade wurin rufewa; Ko tare da fensir a kan bawul faifai da wurin zama sealing surface zana ƴan concentric da'irori, sa'an nan bawul diski da wurin zama kusa juyi, duba fensir da'irar share, ƙayyade sealing surface kusa.
Idan HATIMIN BAI DA KYAU, FUSKA DISC KO HATIN KOFAR DA FUSKA HATIMIN ቫልVE ANA IYA BINCIKETA TA STANDARD PLATE DOMIN SANAR DA SHAFIN Nika.
Tsarin nika
Tsarin niƙa shine ainihin tsarin yanke lathe, rami ko zurfin rami a kan bawul ɗin ko wurin zama gabaɗaya a cikin 0.5mm, kuma ana iya amfani da hanyar niƙa don kiyayewa. An raba tsarin niƙa zuwa niƙa maras kyau, niƙa matsakaici da niƙa mai kyau.
M nika shi ne don kawar da abrasion, indentation, lalata batu da sauran lahani a kan sealing surface, ta yadda sealing surface iya samun mafi girma flatness da wani mataki na gama, da aza harsashi ga nika na sealing surface.
M nika ta amfani da nika kai ko nika wurin kayan aikin, da yin amfani da m yashi takarda ko m nika manna, da barbashi size 80 # -280 #, m barbashi size, babban yankan adadin, high dace, amma yankan hatsi ne zurfi, da sealing. surface surface ne m. Saboda haka, m nika idan dai lebur don cire bawul shugaban ko wurin zama pitting.
Matsakaicin niƙa shine don kawar da ƙaƙƙarfan hatsi akan saman rufewa da kuma ƙara haɓaka shimfidar wuri da gama rufewar. Yin amfani da takarda mai yashi mai kyau ko man shafawa mai kyau, girmansa shine 280 #-W5, ƙananan ƙwayar ƙwayar cuta, ƙananan ƙananan adadin, yana da kyau don rage rashin ƙarfi; A lokaci guda, ya kamata a maye gurbin kayan aikin niƙa daidai, kuma kayan aikin nika ya zama mai tsabta.
Bayan niƙa, lambar sadarwa jirgin sama na bawul ya kamata ya zama mai haske. Idan kayi amfani da fensir don zana ƴan layika akan kan bawul ko wurin zama, juya kan bawul ko wurin zama zuwa da'irar haske, layin fensir ya kamata a goge.
Nika mai kyau tsari ne na niƙa bawul, galibi don haɓaka ƙarshen rufewa. Za a iya amfani da niƙa mai kyau a cikin W5 ko ƙananan ƙananan ƙananan ƙwayar da aka diluted tare da man fetur, kerosene da sauransu, tare da bawul din da ke kan kujerar bawul don niƙa, ba tare da wasan kwaikwayo ba, wanda ya fi dacewa da murfin rufewa na kusa.
Gabaɗaya lokacin da juya agogo a kusa da 60-100 °, game da 40-90 ° don sake juyawa cikin kishiyar shugabanci, a hankali na ɗan lokaci, dole ne ku duba sau ɗaya, tsaya haske mai haske, kuma a kan bawul ɗin da wurin zama na bawul na iya gani sosai. layi mai kyau, launi zuwa baki baki, a hankali tare da man mai sau da yawa, tare da zane mai tsabta don goge gwangwani mai tsabta.
Bayan niƙa, to, kawar da sauran lahani, wato, ya kamata a tattara da wuri-wuri, don kada ya lalata shugaban bawul mai kyau.
Manual niƙa ko m ko lafiya, kullum ta hanyar dagawa, sa ƙasa; Juyawa, ramawa; Tsarin niƙa wanda ya haɗa tapping, juyawa da sauran ayyuka. Manufar ita ce a guje wa maimaita waƙoƙin abrasive, sanya kayan aikin niƙa da saman rufewa su sami niƙa iri ɗaya, da haɓaka shimfidar wuri da gama rufewa.
Matakin dubawa
A cikin tsarin niƙa, matakin dubawa koyaushe yana gudana, manufarsa shine fahimtar yanayin niƙa a kowane lokaci, sani, sanya ingancin niƙa don saduwa da buƙatun fasaha. YA KAMATA a lura cewa ya kamata a yi amfani da daban-daban bawul nika don daidaita da daban-daban sealing surface siffofin nika kayan aikin, domin inganta nika yadda ya dace da kuma tabbatar da nika ingancin.
Nikawar Valve aiki ne mai cikakken bayani, buƙatar gogewa, bincike, haɓakawa a aikace, wani lokaci yana niƙa sosai, amma bayan shigarwa ko zubar da ruwa, wannan saboda a cikin aikin niƙa akwai tunanin karkatar da niƙa, sandar niƙa ta hannu shine. ba a tsaye, karkatacce, ko karkatar da girman kusurwar kayan aiki ba.
Domin sinadarin abrasive cakude ne na ruwa mai yayyafawa da mai, kuma ruwan da ake cirewa shine babban kananzir da mai. Sabili da haka, ainihin zaɓi na wakilai masu ɓarna ** maɓallin hanyar haɗin kai shine ainihin zaɓi na abrasive.
Yadda za a zabi bawul abrasive daidai?
Aluminum oxide (
Silicon carbide (SiC) Silicon carbide kore ne kuma baƙar fata, taurinsa ya fi alumina girma. Green silicon carbide ya dace da niƙa mai ƙarfi gami; Black silicon carbide ana amfani da shi don niƙa abubuwa masu gatsewa da kayan laushi, kamar simintin ƙarfe, tagulla, da sauransu.
Boron carbide (B4C) taurin yana ƙasa da foda lu'u-lu'u kuma ya fi silicon carbide, galibi ana amfani dashi don maye gurbin lu'u-lu'u foda mai niƙa mai ƙarfi gami da niƙa saman chrome-plated.
Chromium oxide (Cr2O3) chromium oxide babban taurin ne kuma yana da kyau sosai, ana amfani da karfen da aka kashe don kammala chromium oxide, gabaɗaya kuma ana amfani da shi wajen gogewa.
Iron oxide (Fe2O3) baƙin ƙarfe oxide shi ma mai kyau bawul abrasive, amma taurin da nika sakamakon sun fi chromium oxide muni, iri daya amfani da chromium oxide.
Diamond foda The crystallization 磮 C, shi ne * * wuya abrasive, yankan yi yana da kyau, musamman dace da nika wuya gami.
Bugu da kari, da abrasive barbashi size (abrasive barbashi size) yana da *** tasiri a kan nika yadda ya dace da kuma surface roughness. M nika, da bawul workpiece surface roughness bukatun ba high, domin inganta nika yadda ya dace ya kamata zabi m abrasive; A lokacin da karewa, da nika izni ne kananan, da ake bukata na workpiece roughness ne high, da lafiya-grained abrasive za a iya amfani da.
Seling saman m nika abrasive barbashi girman ne kullum 120 # ~ 240 #; Daidaitawa shine W40 ~ 14.
Bawul ɗin yana daidaita abin da ke lalata, yawanci ta hanyar ƙara kananzir da man mota kai tsaye zuwa ga abin da aka lalata. Abrasives da aka shirya tare da 1/3 kerosene da 2/3 mai da abrasive sun dace da niƙa mai laushi; Abrasives da aka yi da 2/3 kerosene da 1/3 mai da abrasive za a iya amfani da su don kammalawa.
Lokacin niƙa da workpiece tare da babban taurin, sakamakon yin amfani da abrasive wakili bai dace ba. A wannan lokacin, man alade wanda zai iya amfani da abrassers 3 don ƙara dumamar yanayi don daidaitawa tare, FORM PASTE BAYAN SANYI, SAKE SAKE SANARWA DA KANZON KYAU IDAN AKE AMFANI KO GASOLINE DOMIN daidaitawa koda yaushe.
Zaɓin kayan aikin niƙa
Bawul diski da bawul wurin zama sealing surface saboda daban-daban digiri na lalacewa, ba za a iya kai tsaye nazarin, amma tare da wani lamba da kuma bayani dalla-dalla na ƙarya bawul diski (wato nika kai), ƙarya bawul wurin zama (wato nika wurin zama) bi da bi a kan bawul. wurin zama, bawul diski nika.
KUNGIYAR NIK'A DA KUJERAR NIK'A SAI AKE YI DA KARFE KARFE KO RUWAN KARFE KUMA ZAI ZAMA GIRMA DA KUNGIYA DA faifai da kujerun da aka ɗora akan valv.
Idan an yi niƙa da hannu, ana buƙatar sandunan niƙa daban-daban. Ya kamata a haɗa sandar niƙa da kayan aikin niƙa da kyau kuma kada a karkace. Don rage ƙarfin aiki da kuma hanzarta saurin niƙa, ana amfani da injin niƙa na lantarki ko na'ura mai girgiza.
Ayyukan aminci don gwajin hydraulic na bawuloli
1. Ba a ba da izinin bawul ɗin da aka aika a cikin gwajin hydraulic don samun fashe, pores, ƙwanƙwasa, gyare-gyaren gyare-gyaren bawul ɗin ba a yarda ya sami sabon abu ba.
2. Dole ne a ƙididdige kusoshi da goro da aka yi amfani da su don ƙarfi da alama don hana rikicewa.
3. The gwajin workpiece dole ne a lazimta zuwa na'urar da kuma ba a yarda a sanya da yardar kaina. Haofm.com.q2G B V5vJ
4. Rubutun roba ko wasu na'urorin roba da ake amfani da su don gwaji kada su zama mai tauri, lebur, sako-sako, ko rasa elasticity.
5. Yi gwajin gwaji daidai da ka'idodin tsarin samfurin. Lokacin da matsa lamba ya tashi sama da matsa lamba na aiki, ba a ba da izinin karkatar da goro, matsa na'urar da sauran sassa akan bangaren.
6. Ƙarshen murfin dole ne ya cika bukatun takardun fasaha kuma ya wuce gwajin kafin a iya amfani da shi. Lokacin da gwajin gwajin ya wuce kashi 25% na matsi mai ƙididdigewa, ba a yarda a yi amfani da shi ba.