Sarrafa Inganci A Kashewa Tare da Zazzabin Zazzabi Bayan ƙirƙirawa

Kasashe a duniya da ƙarfi suna ba da shawarar manufar rage gurɓataccen iska da yawan amfani: masana cikin gida da kamfanoni da yawa sun ɗauki matakai daga fannoni daban -daban, da kuma kashe zafin sharar gida bayan ƙirƙira ɗaya daga cikin mahimman matakan.

Ragowar zafi mai ƙonewa bayan ƙirƙira shine babban zafin zafin zafin zafin jiki a cikin jiyya mai zafi na thermomechanical. Bayanan [1, 2, 3] suna da takamaiman bayanai. Ya zuwa yanzu, masana'antun cikin gida da yawa sun yi amfani da kashewar zafin ɓarna na bayan-bayan, kuma kaɗan daga cikin masana'antun sun ƙaddamar da → dismounted → remounted ko mount → dismounted → na ci gaba da sauka saboda matakan kula da inganci.

Idan aka kwatanta da maganin zafi na yau da kullun, saboda matsanancin zafin jiki da naƙasasshen juzu'i, ƙimar hatsin ƙaramin kusurwa na martensite na ƙarfe yana ƙaruwa, yawaitar dislocation yana ƙaruwa, asalin sinadarin hydrogen ya tsere, fashewar asali ta warke da ragewa, da carbides ana tarwatsa su kuma ana kwarara su. Ƙarfafawar sassan sassan ƙarfe ya inganta sosai (gabaɗaya an inganta shi da kusan 10%). A lokacin zafin jiki, sassan karfe suna da juriya mai ƙarfi (ana inganta yanayin zafin jiki idan aka kwatanta da na al'ada, gabaɗaya 20 ℃ -30 ℃).

• 1. Lokacin da muka je masana'antar sarrafa zafi don dalilai daban -daban, ma'aikatan injiniya da na fasaha da yawa sun ba da shawarar cewa albarkatun ƙasa da sauran fannoni suna da kyau, ta yaya za a yi hasashen abin da zai ɓarke ​​karaya bayan kallon juna? Wannan shine taƙaitaccen manyan tasirin guda uku (waɗannan manyan tasirin guda uku kuma suna da ƙima mai ma'ana don haɓaka haɓakar hydrogen da raunin lalacewar damuwa a cikin aikin jiyya na farfajiya).
• 1.1 Sakamakon abun da ke cikin sinadarai: Misali: ƙarfe carbon: girman ф6, ruwan gishiri iri ɗaya: ƙarfe 35, ƙarfe 40, karfe 45, ƙarfe 50, ƙarfe 55, ƙarfe 60, ƙarfe 65, ƙarfe, sakamakon shine 45 karfe ~ 60 ƙarfe yana karyewa cikin sauki. Saboda mafi girman abun cikin carbon na martensite, mafi girman damuwa, kuma matsakaicin abun cikin carbon shine kusan 0.6%. Lokacin da abun cikin carbon na ƙarfe ya yi yawa, zai zama sama da 0.6%, kuma za a samar da ragowar A, wanda ke rage jinkirin zaɓin danniya na martensite kuma ba mai sauƙin karaya bane. Gabaɗaya magana: Karfe Alloy shine mafi rauni ga kashewa da fasawa. Misali: 42CrM. Lokacin da girman ya kai ф100, ruwan da ya kashe ba zai tsage ba. Wannan shine girman girman da aka bayyana a ƙasa.
• 1.2 Tasirin girma: Misali: karfe 45: ф1, ф2, ф3 ...... ф10 sakamakon kashe wuta ya gano cewa ф6 shine mafi kusantar a kashe. Saboda a ƙasa ф6, gabaɗaya ana iya kashe shi zuwa martensite. Koyaya, juzu'in juzu'i na ф6 zuwa martensite yana da mafi girman damuwa, don haka shine mafi sauƙi don karya. Dalili ɗaya: matsakaicin matsin lamba na baƙin ƙarfe shine ƙirar ƙira (hardenability is half martensite), wanda shine kusan 2/3 . Sabili da haka, da farko duba ma'aunin ƙarfi na wani ƙarfe na ƙarfe, sannan ku kalli kayan aikin. Menene girman hatsari?
• 1.3 Tasirin sifa: canjin kwatsam a sashin giciye, ƙaramin kusurwar R, tsinkaye kusurwoyi masu kaifi, ramuka masu zurfi a kan gefuna, bugun da alama gefuna masu kaifi, ramukan makafi, buɗe ƙasa, buɗe ƙofa, ramin ramin da bai dace ba, da girman ramuka daban-daban. Da dai sauransu, asymmetry yanki na giciye, da dai sauransu.
• 2. Zaɓin zafin zafin zafin sanyi: Kowa ya san cewa tsarin martensite na hatsi kai tsaye ba tare da sanyaya ba bayan ƙirƙira ƙarami ne. Yana iya saduwa da buƙatun daidaitattun kayan aikin ƙarfe na gida na yau da kullun, kuma wasan kwaikwayon yana da kyau, amma don manyan sassa masu rikitarwa, man da ke kashewa ba zai iya cika buƙatun ba, kashewa da ruwa ko matsakaici mai ɗimbin ruwa zai iya haifar da fashewa cikin sauƙi. Yana kashe mai, don hana gurɓatawa da adana kuɗaɗe, yakamata a canza shi zuwa matsakaiciyar murƙushe ruwa mai ƙarfi; 42CrM a cikin babban taron manyan motoci na Steyr wanda wani kamfani a Chongqing ya samar. Karfe; Karɓar gatarin gatari na gaba da ma'aunin ma'auni, wasu ma'aikatan fasaha na kamfanin ba tare da ɓata lokaci ba sun canza pre-sanyaya ≈800 ℃ zuwa ≥850 ℃ kai tsaye, wanda ya haifar da kusan kashi 80% na manyan fasa bututun mai. Tabbas, an yi nazarin abin da ya haifar da karayar, kuma abun da ke cikin B na albarkatun ƙasa ya kai 0.0022% na rahoton dubawa na rukunin gine -ginen Chongqing, da ƙungiyar Changan na Cibiyar Binciken Jiki da Kimiyya ta Kudu maso Yamma na Ma'aikatar Makamai sun ruwaito. 0.0042%. Lura: (1). Matsayin sojan ƙasa GJB2720-1996, ma'aunin abun cikin boron na ƙarfe boron shine 0.0005 ~ 0.0035%; (2). Yanayin fasaha na ƙirar ƙirar gwal mai ɗauke da gwal GB3077-88 ma'aunin abun ciki na boron karfe shine 0.0005 ~ 0.0035%. Bangaren band zuwa matakin I ... shima yana daya daga cikin dalilan. Matsalar rarrabuwar yanki na kayan albarkatun kasa wanda ya kai matakin I muhimmin abu ne ga fasa (rarrabuwa mai nauyi yana haifar da sinadaran da ba su dace ba da maganin zafi yana kashe rarraba damuwa, wanda yake da sauƙi don haifar da fashewar fasa);

Yin amfani da nazarin bakan makamashin X-ray: An yi nazarin iyakokin hatsi da matrix a cikin samfurin samfurin ƙirar ƙirar ƙirar ƙira da tazara kaɗan tare da Vantage X-ray energy spectrum analyzer. An nuna sakamakon bincike a cikin Hoto 1, Hoto 2 da Table 1.

Koyaya, sauran ƙarfe tanderun yana da babban abun ciki na boron da babban rarrabuwa. Ana daidaita daidaiton PAG ta hanyar rage zafin zafin zafin, don haka babu fasa da ya faru.

Zaɓin zafin zafin zafin zafin jiki: Da farko, gwargwadon tasirin guda uku da aka ambata a sama, ƙayyade ɓangaren mafi rauni. Ya kamata a daidaita sigogin tsari yadda yakamata. Misali:

• (1) "Sama da katako mai goshi" 42CrM. Mun yi sanyi ≈800 ℃ don kashe PAG, kuma yana da sauƙin sarrafa HRC a 48-52.
• (2) Babbar masana'antar crankshaft babur a Chongqing: tana ɗaukar hanyar yin layi da sanyaya zafin jiki bayan ƙirƙira don cimma pre-sanyaya ≈770 ℃ don kashe PAG, kuma yana amfani da injin ɗaga bel don barin saman ruwa ba tare da sanyi ba dan zafin kai. Bayan rufewa, zafin zafin zafin zafin karfe 45 da 40Cr yayi kama, amma yawan PAG ya bambanta.
• (3) Ma'aikatar crankshaft a Chongqing: tana ɗaukar na'urar da ke shiga murhun zafin jiki na yau da kullun bayan ƙirƙira don kiyaye ta da sanyaya a ≈770 ℃ kuma ta mutu cikin mafita na tushen ruwa ...

Zaɓin kashe matsakaici: dangane da sabon bincike daga ko'ina cikin duniya, abin da ake kira tasirin harsashi mai wuya. Bukatun: Yawan sanyaya na farko na jujjuyawar pearlite dole ne yayi sauri don samar da tasirin harsashi mai ƙarfi tare da matsin lamba. Martensite yana juyawa sannu a hankali, ta yadda fasa ba mai sauƙin faruwa bane, kuma jerin sakamakon bincike kamar amfani da sanyaya feshi mai sarrafa shirye-shirye don sarrafa saurin ya cancanci yaduwa da aikace-aikace.

PAG-ⅢA da PAG-ⅢB ruwan kashewa da muke haɓakawa sun dogara ne akan buƙatar gaggawa don sabon nau'in saurin canjin pearlite mai kama da ruwan gishiri da ruwan alkaline, da saurin canza martensite mai kama da mai, wanda da gaske yake maye gurbin kashe ruwa da mai. sanyaya. Quenching ruwa, da kuma rigakafin tsatsa ana kiyaye shi fiye da kwanaki 5. Don yin pearlite ya canza kama da gishiri da ruwan alkaline, fim ɗin kumfa da aka kafa lokacin da aikin kashe wuta ya shiga cikin ruwa dole ne a yi saurin fashewa, don a hanzarta saurin sanyaya. Misali, a cikin taro na 3%, ƙimar farko na sanyaya ba ta da kyau kamar ruwan brine da alkaline, wato, dole ne a ƙara ƙari ɗaya ko fiye don haɗa abubuwan da ke sama. A zahiri, maida hankali na PAG-ⅢA ya kai saurin farko da sauri fiye da ruwa da barasa na polyvinyl, kuma saurin na biyu yana da hankali fiye da na sauran masana'antun a ƙarƙashin ƙaddarar PAG ....... A cikin carburizing da kashe raga. murhun farantin bel: An haɓaka PAG-ⅢA kuma ana amfani da shi ta hanyoyi da yawa ... A halin yanzu, akwai tanda bel ɗin aski fiye da 20 da ake amfani da su a duk faɗin ƙasar; musamman mesh bel makera carburizing yana warware matsalar tabo mai laushi, rashin ƙarfi, babban nakasa ... ..... Ikon hana tsatsa ya wuce kwanaki 5, kuma an rage yawan amfani da PAG da kashi 20%.

Akwai aikace-aikacen 6 PAG-ⅢA a Chongqing. Saboda wasu masana'antun suna amfani da wannan ƙirar, wasu samfura na musamman suna warware matsalolin da ke da wahalar warwarewa tare da wasu kafofin watsa labarai, kuma fitowar tana ƙaruwa. Don sirrin sirri, ba za mu gabatar da su ɗaya bayan ɗaya ba. An yi amfani da shi sosai a cikin mitar mita; matsakaicin mita yana kashe gatarin mota.

Mayar da hankali, zazzabi da motsawar ruwan kashewa

Naúrar da muke hidima: maida hankali na PAG na ruwa mai kashewa, gwargwadon saƙar ƙarfe, girman sassan, da girman waje gwargwadon ka'idar da gogewa don daidaita maida hankali ....

Ana sarrafa zafin zafin ruwa a 30-50 ℃, kuma ana amfani da babban tafkin da ke yawo a waje da shuka don watsa musayar zafi. Ƙunƙwasawa da zagayawa gaba ɗaya ne.

Sarrafa taurin bayan kashewa

Ƙarfin bayan ƙwanƙwasa alama ce mai mahimmanci don hana fashewa: musamman lokacin da ake amfani da ruwa mai narkar da ruwa, mafi girman taurin, fasa da ƙaruwa na nakasa yana da sauƙin faruwa. Auki 42CrMo. Misali, yakamata a sarrafa gatarin gatari na gaba a HRC48 ～ 52.

Wajibi ne a yi taka tsantsan bayan kashe wuta

Tazara da tazara: minutes mintuna 30 (Sojojin da kayayyakin farar hula na Chongqing Construction Group na buƙatar ruwan da ke narkar da ruwa zuwa tazarar dawowar ruwa ya wuce mintuna 30, sannan za a fasa) Za a iya amfani da ƙanana sassan samarwa a cikin zafin zafin ci gaba. layin samarwa.

Tsarin Metallographic da kaddarorin bayan ƙirƙira da kashewa

Ƙarfafa zafi, idan ana buƙata kafin sanyaya, hatsin gaba ɗaya ya fi girma. Bayanai [1, 2, 3] saboda gwajin karatun kammala karatun ɗaliban a waccan shekarar, ƙananan samfuran da ake amfani da su gabaɗaya ba a sanyaya su kuma a kashe su kai tsaye, suna ba da mahimman ka'idoji.

Tare da kirkirar mutane da haɓakawa: fasahar samarwa ta yanzu tana ɗaukar pre-sanyaya da kashewa, kuma girman hatsin gabaɗaya shine 2-3, amma aikin yayi kyau. Takeauki katako da aka ambata a sama azaman misali: hatsi ƙarami ne, kuma madaidaicin bayanan zagayowar gajiya shine an yarda ya karye bayan sau 900,000, kuma pre-sanyaya da kashe wutar gajiya bayan ƙirƙira an karɓa don isa 1.3 sau miliyan ba tare da karyewa ba.

Me yasa ƙirƙira, da sanyaya zafin jiki da kashe miyan hatsi da kyakkyawan gwajin gwaji? Babban dalilin shine iyakokin hatsi na ƙaramin kusurwa yana ƙaruwa kuma yawaitar rarrabuwa yana ƙaruwa, waɗanda ba a iya gani a ƙarƙashin babban madubin ƙarfe na ƙarfe. Sabili da haka, ƙungiyoyi da yawa na ƙirƙirawa da kashewa dole ne su “koyar da matsaloli” tare da sashin binciken da ya gabata. A saboda wannan dalili, lamari ne na gaggawa ga injiniyanci da ma'aikatan fasaha waɗanda a halin yanzu suke cikin ƙa'idodin ƙirar ƙarfe don hanzarta tsara ƙirƙira da kashe ƙa'idodin ƙirar ƙarfe ...

Kammalawa

• Aikace-aikace na hanyar sanyaya zafin jiki don ɓarna zafin zafi bayan ƙirƙira Zaɓin zafin zafin da aka sanyaya ya dogara da tsarin da ake buƙata da aiki, muddin ya cika buƙatun, mafi ƙanƙanta mafi kyau.
• Bayan ƙirƙirawa, ana zaɓar matsakaicin maƙasudi don kashewa ta zafin zafin da ya rage don amfani da ƙimar sanyaya na farko (ƙimar canjin pearlite) don haifar da tasirin harsashi mai ƙarfi. Ruwa na kashewa na biyu tare da jinkirin saurin sanyaya (raunin sauyin martensite).
• Lokacin da albarkatun ƙasa da sauran fannoni suka yi kyau, ko shirin kafin a samar da fasa yakamata a fahimci manyan illolin guda uku.
• Haɗin sunadarai da rarrabuwa na albarkatun ƙasa sun fi dacewa da fasa. Ana ba da shawarar cewa lokacin da aka canza lambar tanderu, dole ne a yi ƙaramin ƙimar samarwa da gwajin 100% na magnetization. Yi amfani da fa'ida don nemo matakan da za a hana ɗimbin tarkace su faru.

Da fatan za a adana tushe da adireshin wannan labarin don sake bugawa: Sarrafa Inganci A Kashewa Tare da Zazzabin Zazzabi Bayan ƙirƙirawa

Minghe Kamfanin 'Yan Wasa Masu Mutu aka sadaukar domin tsirar da samar da inganci da kuma high yi Gyare sassa (karfe mutu simintin sassa Range yafi hada da Thin-Wall Mutu Wasa,Hot Chamber Mutu Wasa,Cold Chamber Mutu Wasa), Zagaye Sabis (Mutuwar 'Yan Wasa,CNC machining,Motsa Motsa, Jiyya na sama) .Adadin al'ada Aluminium ya mutu, magnesium ko Zamak / zinc mutu simintin gyare-gyare da sauran buƙatun simintin maraba don tuntube mu.

Karkashin kulawar ISO9001 da TS 16949, Ana aiwatar da dukkan matakai ta hanyar daruruwan injunan jefa simintin da suka mutu, injunan axis 5, da sauran kayan aiki, tun daga masu fashewa zuwa na’urar Ultra Sonic masu wanki.Minghe ba kawai tana da kayan aiki na zamani ba amma kuma tana da kwararru ƙungiyar ƙwararrun injiniyoyi, masu aiki da sufetoci don tabbatar da ƙirar abokin ciniki ta zama gaskiya.

Manufactureran kwangilar masana'antar mutu. Abubuwan haɓakawa sun haɗa da sassan sanyi na sassan mutuɗar aluminum daga 0.15 lbs. zuwa 6 lbs., saurin canje-canje da aka saita, da aikin inji. Sabis-ƙarin ayyuka sun haɗa da gogewa, faɗakarwa, lalatawa, fashewar harbi, zane, zane, rufi, haɗuwa, da kayan aiki. Abubuwan da aka yi aiki tare sun haɗa da allo irin su 360, 380, 383, da 413.

Zinc ya mutu don jefa ƙirar ƙira / sabis na injiniya tare. Custom manufacturer na daidaici tutiya mutu simintin gyaran kafa. Castananan 'yan simintin gyare-gyare, pressurean ƙwanƙwasa masu juzu'in juzu'in simintin gyare-gyaren juzu'ai, ƙera simintin gyare-gyare na al'ada, ɓangaren mutu da' yan wasa masu mutuwa masu zaman kansu da ƙofar da aka hatimce za a iya ƙera su. Za'a iya kerarrar 'yan simintin a tsayi da faɗi har zuwa 24 a ciki. A cikin +/- 0.0005 a cikin. Haƙuri.  

ISO 9001: 2015 bokan masana'anta ta mutu magnesium, Abubuwan haɓaka sun haɗa da matsin lamba na magnesium mai matsi mai yawa har zuwa tan 200 mai ɗumi mai zafi & 3000 ton mai sanyi, ƙirar kayan aiki, gogewa, gyare-gyaren, inji, foda & zanen ruwa, cikakken QA tare da damar CMM , taro, marufi & isarwa.

ITAF16949 bokan. Servicearin Sabis ɗin Gyare Hadawa zuba jari,yashi,Kushin nauyi, Stauren ɓoye ɓoye,Siffar Centrifugal,Cast Vacuum,Dindindin Mould Gyare, .Hanyoyin iyawa sun hada da EDI, taimakon injiniya, ingantaccen samfuri da aiki na sakandare.

Fitar Masana'antu Abubuwan Nazarin sassa don: Motoci, Bikes, Jirgin sama, kayan kiɗa, Jirgin ruwa, Na'urorin hangen nesa, na'urori masu auna sigina, na'urori masu auna sigina, Na'urori, Kayan lantarki, ,unshi, Clocks, Inji, Injiniya, Kayan Kaya, Kayan Jiki, Jigs, Telecom, Haske, Kayan aikin likita, Na'urar daukar hoto, Robobi, Sassaka, kayan sauti, kayan wasanni, Kayan aiki, Kayan wasa da ƙari. 

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By Minghe Mutu Wasa Wasa | Categories: Labarai masu Taimakawa |Material Tags: Gyare Aluminum, Zinc Gyare, Fitar Magnesium, Castan Wasanni, Bakin Karfe Cast, Fitar tagulla,Gyare Tagulla,Fitar Bidiyo,Tarihin Kamfanin,Aluminum Mutu Gyare | Comments Off