Bayan daKWALLON KWALLOana amfani da shi na dogon lokaci, za a yi amfani da filin rufewa na diski na bawul da wurin zama na bawul kuma za a rage matsa lamba.Gyara farfajiyar hatimi babban aiki ne mai matukar muhimmanci.Babban hanyar gyarawa shine niƙa.Ga saman da aka sawa hatimi mai tsanani, yana surfacing waldi sannan kuma yana niƙa bayan ya juya.

1 Tsaftacewa da tsarin dubawa

Tsaftace wurin rufewa a cikin kaskon mai, yi amfani da ƙwararrun wakili mai tsaftacewa, da kuma duba lalacewar abin rufewa yayin wankewa.Za a iya yin ɓarna masu kyau waɗanda ke da wahalar ganewa da ido tsirara ta hanyar gano tabo.

Bayan tsaftacewa, duba tsantsar fayafai ko bawul ɗin ƙofar da wurin rufewa na wurin zama.Yi amfani da ja da fensir lokacin dubawa.Yi amfani da jan gubar don gwada ja, duba alamar hatimin don sanin maƙarƙashiyar wurin rufewa;ko yi amfani da fensir don zana ƴan da'irar da'irar da'ira akan madaidaicin madaurin faifan bawul da kujerar bawul, sannan a jujjuya diski ɗin bawul da kujerar bawul ɗin da kyau, sannan a duba da'irar fensir Ka share yanayin don tabbatar da matsi na sealing surface.

Idan maƙarƙashiyar ba ta da kyau, ana iya amfani da madaidaicin farantin lebur don duba wurin rufe diski ko ƙofar da kuma madaidaicin jikin bawul ɗin bi da bi don sanin matsayin niƙa.

2 tsarin nika

Tsarin nika shine ainihin tsarin yanke ba tare da lathe ba.Zurfin rami ko ƙananan ramuka akan kan bawul ko wurin zama gabaɗaya yana cikin 0.5mm, kuma ana iya amfani da hanyar niƙa don kulawa.An raba tsarin niƙa zuwa niƙa maras kyau, tsaka-tsaki da niƙa mai kyau.

Nika mai tauri ita ce kawar da lahani irin su tarkace, ɓarna, da wuraren lalata a kan farfajiyar rufewa, ta yadda farfajiyar ɗin za ta iya samun matakin mafi girma na flatness da wani matakin santsi, da aza harsashin tsakiyar niƙa na sealing. saman.

M nika yana amfani da niƙa kai ko niƙa kayan aikin wurin zama, ta yin amfani da m-grained sandpaper ko m-grained manna nika, tare da barbashi girman 80#-280#, m barbashi size, babban yankan girma, high dace, amma zurfin yankan Lines da m. sealing surface.Saboda haka, m nika kawai bukatar smoothly cire pitting na bawul head ko bawul wurin zama.

Niƙa ta tsakiya shine don kawar da m Lines a kan sealing surface da kuma kara inganta flatness da santsi na sealing surface.Yi amfani da takarda mai laushi mai laushi ko mai laushi mai laushi mai laushi, girman nau'in 280 #-W5, girman ƙwayar yana da kyau, ƙananan ƙananan ƙananan, wanda ke da amfani 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 tsaka-tsakin niƙa, alamar lamba na bawul ɗin ya kamata ya zama mai haske.Idan ka zana ƴan bugun jini a kan bawul ɗin ko kujerar bawul tare da fensir, kunna kan bawul ɗin ko kujerar bawul ɗin a hankali, sannan ka goge layin fensir.

Nika mai kyau shine tsarin ƙarshe na niƙa bawul, galibi don haɓaka santsi na saman rufewa.Don niƙa mai kyau, ana iya diluted da man inji, kananzir, da dai sauransu tare da W5 ko mafi kyaun juzu'i, sa'an nan kuma yi amfani da bawul head don niƙa wurin zama bawul maimakon wasan kwaikwayo, wanda ya fi dacewa da maƙarƙashiya na rufewa.

Lokacin da ake niƙa, juya shi ta hanyar agogo kamar 60-100 °, sa'an nan kuma juya shi kamar 40-90 ° a kishiyar shugabanci.A hankali niƙa na ɗan lokaci.Dole ne a duba shi sau ɗaya.Lokacin da niƙa ya zama mai haske da haske, ana iya gani a kan bawul din da wurin zama.Idan akwai layi mai sirara kuma launi ya kasance baƙar fata da haske, a sauƙaƙe shafa shi da man inji sau da yawa sannan a goge shi da gauze mai tsabta.

Bayan niƙa, kawar da wasu lahani, wato, haɗuwa da wuri-wuri, don kada ya lalata shugaban bawul na ƙasa.

Niƙa da hannu, ba tare da la'akari da niƙa mai ƙaƙƙarfan niƙa ko niƙa mai kyau ba, koyaushe yana gudana ta hanyar niƙa na ɗagawa, ragewa, jujjuyawa, maimaituwa, taɓawa, da juyawa ayyuka.Manufar ita ce a guje wa maimaita hanyar ƙwayar ƙwayar cuta, ta yadda kayan aikin niƙa da filin rufewa za su iya zama ƙasa iri ɗaya, kuma za a iya inganta shimfidar wuri da santsi na filin rufewa.

3 lokacin dubawa

A cikin aikin niƙa, matakin dubawa koyaushe yana gudana.Manufar ita ce ci gaba da lura da yanayin niƙa a kowane lokaci, ta yadda ingancin niƙa zai iya biyan bukatun fasaha.Ya kamata a lura da cewa a lokacin da nika daban-daban bawuloli, nika kayan aikin dace da daban-daban sealing surface siffofin kamata a yi amfani da inganta nika yadda ya dace da kuma tabbatar da nika ingancin.

Niƙa Valve aiki ne mai ƙwazo, wanda ke buƙatar ƙwarewa akai-akai, bincike, da haɓakawa a aikace.Wani lokaci niƙa yana da kyau sosai, amma bayan shigarwa, har yanzu yana zubar da tururi da ruwa.Wannan saboda akwai tunanin karkatar da niƙa yayin aikin niƙa.Sandar niƙa ba a tsaye ba, karkatacce, ko kusurwar kayan aikin niƙa ta karkata.

Tun da abrasive cakuda ne na abrasive da kuma nika ruwa, ruwan nika ne kawai janar kananzir da man inji.Sabili da haka, maɓalli don zaɓin daidaitaccen zaɓi na abrasives shine ainihin zaɓi na abrasives.

4 Yadda za a zabi bawul abrasives daidai?

Alumina (AL2O3) Alumina, kuma aka sani da corundum, yana da babban taurin kuma ana amfani dashi sosai.Gabaɗaya ana amfani da su don niƙa kayan aikin da aka yi da simintin ƙarfe, jan ƙarfe, ƙarfe da bakin karfe.

Silicon Carbide (SiC) Silicon carbide yana samuwa a cikin kore da baki, kuma taurinsa ya fi na alumina girma.Koren silicon carbide ya dace da niƙa da ƙarfi gami;Ana amfani da carbide baƙar fata don niƙa gagas da abubuwa masu laushi, kamar simintin ƙarfe da tagulla.

Boron carbide (B4C) yana da taurin na biyu kawai zuwa lu'u-lu'u foda kuma mafi wuya fiye da silicon carbide.Ana amfani da shi ne musamman don maye gurbin lu'u-lu'u foda don niƙa gaɗaɗɗen gami da niƙa saman chrome-plated.

Chromium oxide (Cr2O3) Chromium oxide wani nau'i ne na babban taurin gaske kuma yana da kyau sosai.Ana amfani da Chromium oxide sau da yawa a cikin kyakkyawan niƙa na ƙarfe mai tauri, kuma ana amfani dashi gabaɗaya don gogewa.

Iron oxide (Fe2O3) Iron oxide shima yana da kyau sosai, amma taurinsa da tasirinsa ya fi chromium oxide muni, kuma amfaninsa iri daya ne da chromium oxide.

Diamond foda ne crystalline dutse C. Yana da wuya abrasive tare da kyau yankan yi da shi ne musamman dace da nika wuya gami.

Bugu da kari, kauri daga cikin abrasive barbashi size (da barbashi size na abrasive) yana da gagarumin tasiri a kan nika yadda ya dace da kuma surface roughness bayan nika.A cikin m nika, da surface roughness na bawul workpiece ba a bukata.Domin inganta aikin niƙa, ya kamata a yi amfani da abrasives mai laushi;a cikin niƙa mai kyau, ƙyallen ƙurar ƙura yana da ƙananan kuma ana buƙatar yanayin da ake bukata na aikin aikin ya zama babba, don haka ana iya amfani da abrasives masu kyau.

Lokacin da filin rufewa ya kasance ƙasa sosai, girman ƙwayar abrasive shine gabaɗaya 120 # 240 #;Don niƙa mai kyau, shine W40 ~ 14.

Bawul ɗin yana daidaita abin da ke lalata, yawanci ta hanyar ƙara kananzir da man injin kai tsaye zuwa ga abin da aka lalata.Abrasive blended da 1/3 kerosene da 2/3 engine man fetur da abrasive ya dace da m nika;abrasive blended da 2/3 kerosene da 1/3 man inji da abrasive za a iya amfani da lafiya nika.

Lokacin niƙa workpieces tare da taurin mafi girma, tasirin amfani da abrasives da aka ambata a sama bai dace ba.A wannan lokacin, ana iya amfani da sassa uku na abrasives da kuma wani yanki mai zafi na man alade don haɗuwa tare, kuma za ta yi man shafawa bayan sanyaya.Idan ana amfani da shi, ƙara kananzir ko man fetur a gauraya sosai.

5 Zaɓin kayan aikin niƙa

Saboda nau'i daban-daban na lalacewa ga farfajiyar hatimi na diski na valve da wurin zama, ba za a iya yin bincike kai tsaye ba.Maimakon haka, ana amfani da takamaiman lamba da ƙayyadaddun faya-fayan fayafai na jabu (wato, kan niƙa) da kujerun bawul (wato kujerun niƙa) waɗanda aka kera musamman a gaba don bincika bawul.Nika wurin zama da diski.

Shugaban niƙa da wurin niƙa an yi su da ƙarfe na carbon na yau da kullun ko simintin ƙarfe, kuma girman da kusurwa ya kamata ya zama daidai da diski ɗin bawul da wurin zama na bawul da aka sanya akan bawul.

Idan an yi niƙa da hannu, ana buƙatar sandunan niƙa daban-daban.Sandunan niƙa da kayan aikin niƙa dole ne a haɗa su da kyau kuma ba karkace ba.Don rage ƙarfin aiki da kuma hanzarta saurin niƙa, ana amfani da injin injin lantarki ko na'urar girgiza don niƙa.