Abin da ake Rufi Sand Gyare tsari

Rufin yashi mai rufi yana da tarihi mai tsawo a cikin gandun daji, kuma fitowar simintin gyare -gyare shima babba ne; duk da haka, yin amfani da simintin yashi mai rufi don samar da madaidaicin simintin ƙarfe yana fuskantar matsaloli da yawa: yashi mai ƙyalli (ƙyalli), shingayen sanyi, da ramuka. Yadda za a magance waɗannan matsalolin ya rage gare mu don ƙarin bincike.　　

Ilimi da fahimtar yashi mai rufi (yashi mai rufi yana cikin nau'in nau'in maƙala, babban yashi)

• (1) Siffofin yashi mai rufi: ƙarfin ƙarfin da ya dace; ruwa mai kyau, shirye -shiryen yashi da murjani suna da madaidaiciyar madaidaiciya da tsari mai kauri, wanda zai iya samar da murhun yashi mai sarkakiya; yadudduka na yashi (murjani) suna da ingancin farfajiya mai kyau da tsaurin yanayi Digiri na iya kaiwa Ra = 6.3 ～ 12.5μm, daidaiton girman zai iya kaiwa matakin CT7 ～ CT9; rushewar yana da kyau, kuma simintin gyaran yana da sauƙin tsaftacewa.
• (2) Yanayin aikace -aikacen: ana iya amfani da yashi mai rufi don yin kyawon tsayuwa. Za a iya amfani da kyandirori ko dunkulewar yashi mai rufi tare da juna ko kuma tare da sauran yadudduka (yadudduka); ba wai kawai za a iya amfani da shi don ƙarfin ƙarfe Gyare ko ƙaramin matsin lamba za a iya amfani da shi don yin simintin siminti na baƙin ƙarfe da simintin ƙarfe na zafi; ana iya amfani da shi ba kawai don samar da baƙin ƙarfe da baƙin ƙarfe na ƙarfe ba, har ma don samar da simintin ƙarfe.

Shiri na yashi mai rufi

1. Haɗin yashi mai rufi　　

Gabaɗaya an haɗa shi da kayan ƙyama, masu ɗaurin gindi, wakilan warkewa, man shafawa da ƙari na musamman.　　

• (1) Refractories sune babban jikin yashi mai rufi. Abubuwan da ake buƙata don kayan ƙyalƙyali sune: babban ƙanƙantar da kai, ƙaramin abu mai rikitarwa, barbashi mai zagaye, da ƙarfi. Gabaɗaya zaɓi yashi siliki na halitta. Abubuwan da ake buƙata don yashi siliki sune: babban abun ciki na SiO2 (ana buƙatar ƙarfe baƙin ƙarfe da simintin ƙarfe na ƙarfe fiye da 90%, ana buƙatar simintin ƙarfe ya zama mafi girma fiye da 97%); abun cikin laka bai fi 0.3% ba (don goge yashi)-[Buƙatun abun ciki na yashi na wanke yashi ƙasa da; Girman barbashi ① an rarraba shi a kusa da girman sieve 3 zuwa 5; siffar hatsi mai zagaye, matakin kusurwa bai kamata ya fi 1.3 ba; Darajar amfani da acid bai wuce 5ml ba.　　
• (2) Ana amfani da reshen Phenolic azaman mai ɗaurewa.
• (3) Urotropine galibi ana amfani da shi azaman wakilin magani; alli stearate gabaɗaya ana amfani dashi azaman mai shafawa, wanda ke hana yashi mai ruɓi daga haɓakawa da haɓaka ruwa. Babban aikin abubuwan ƙari shine haɓaka aikin yashi mai rufi.
• (4) Matsayin asali na yashi mai rufi shine rabon rarrabawa (kashi -kashi, %). Lura: Raɓin yashi 100 yana goge yashi, reshen phenolic shine 1.0 ～ 3.0 lissafin nauyin yashi, kuma urotropine (maganin ruwa mai ruwa 2) shine 10-15 Nauyin sinadarin stearate shine 5-7 don nauyin resin, kuma nauyin ƙari shine 0.1-0.5 ga ɗan yashi. 1: 2) 10-15 ya lissafta nauyin resin, alli stearate 5-7 ya lissafta nauyin resin, ƙari 0.1-0.5 ya lissafa nauyin yashi mai nauyi.

2. Tsarin samarwa na yashi mai rufi 　　　

Tsarin shiri na yashi mai rufi yafi haɗawa da murfin sanyi, murfi mai ɗumi, da murfin zafi. A halin yanzu, kusan duk samar da yashi mai rufi yana ɗaukar hanyar murɗa mai zafi. Tsarin murfi na zafi shine da farko za a dumama ɗanyen yashi zuwa wani zafin jiki, sannan a gauraya da motsawa tare da resin, maganin ruwa na urotropine da stearate na alli, sannan a sanyaya, murkushe da sieving. Saboda bambancin tsari, tsarin hadawa ya bambanta. A halin yanzu, akwai nau'ikan layin samar da yashi mai rufi da yawa a China. Akwai kusan 2,000 zuwa 2,300 layin samar da atomatik don ciyarwa da hannu, kuma kusan layin sarrafawa na sarrafa kwamfuta kusan 50 sun inganta ingantaccen samarwa da kwanciyar hankali. Misali, layin samar da gani na atomatik na xx Casting Co., Ltd., ana sarrafa lokacin ciyar da shi zuwa 0.1 na biyu, ana sarrafa zafin zafin zuwa 1/10 ℃, kuma ana iya lura da yanayin hada yashi ta hanyar bidiyo, kuma ingancin samarwa ya kai tan 6/awa.

3. Babban samfuran samfuran yashi mai rufi　　

• . Abun da ya ƙunsa yawanci ya ƙunshi yashi ma'adini, resin thermoplastic phenolic resin, urotropine da alli stearate. Ba a ƙara ƙarin abubuwa ba, kuma adadin resin da aka ƙara yawanci yana da girma a ƙarƙashin wasu buƙatun ƙarfi, kuma ba shi da halayen juriya mai zafi, ƙarancin faɗaɗa, da ƙarancin juyin halitta na gas. Ya dace da samar da simintin gyare -gyare tare da ƙarancin buƙatu.
• (2) Ƙarfi mai ƙarfi, ƙarancin gas ɗin fasali yashi fasali: babban ƙarfi, ƙarancin faɗaɗawa, ƙarancin juyin halitta na gas, jinkirin juyin halittar gas, anti-oxidation. Takaitaccen taƙaitaccen bayani: Ƙarfi mai ƙarfi, ƙaramin yashi mai samar da iskar gas shine sabon samfurin yashi mai rufi. Ta ƙara halayen "abubuwan ƙari" masu dacewa da ɗaukar sabon Tsarin tsarin haɓaka yana rage adadin resin, ƙarfinsa ya fi 30% sama da na yashi mai rufi na yau da kullun, kuma ƙarar samar da gas yana raguwa sosai, kuma yana iya jinkirta ƙaruwar iskar gas. saurin, wanda zai iya biyan bukatun samar da simintin. Irin wannan yashi mai rufi an fi amfani da shi wajen samar da simintin ƙarfe, ƙanana da matsakaitan ƙarfe na ƙarfe. A halin yanzu, akwai jerin uku na irin wannan yashi mai rufi: GD-1 babban yashi mai ruɓi mai ɗanɗano; GD-2 mai ƙarfi, ƙarancin faɗaɗa, ƙarancin yashi mai ruɓi; GD-3 babban ƙarfi, ƙaramin faɗaɗawa, ƙarancin gas da murfin oxyidation.
• (3) Babban zafin juriya (nau'in) yashi mai rufi (nau'in ND) fasali: babban zafin juriya, babban ƙarfi, ƙarancin faɗaɗa, ƙarancin gas, jinkirin gas, mai sauƙin rushewa, anti-oxidation Gabatarwa: babban zafin zafin yashi mai rufi shine An samar da shi ta hanyar fasahar dabarun tsari na musamman tare da kyakkyawan yanayin zafin zafin jiki (babban ƙarfi a babban zafin jiki, Sabon nau'in yashi mai rufi tare da lokacin juriya mai zafi da zafi, ƙaramin zafi mai zafi, ƙarancin juyin halitta na gas) da cikakkiyar aikin simintin gyare -gyare. Wannan nau'in yashi mai rufi ya dace musamman don samar da sassan ƙarfe mai ƙyalƙyali mai kauri mai kauri (kamar shinge na injin injin mota, kawunan silinda, da sauransu) da ƙarar ƙarfe mai buƙata (kamar sasanninta na akwati da birkin jirgin ƙasa; tsakiyar sassan harsashi, da sauransu), Zai iya kawar da lahani na simintin gyare -gyare kamar yashi mai ɗorawa, nakasa, fashewar zafi da pores. A halin yanzu, yashi mai rufi yana da jerin huɗu: VND-1 babban yashi mai rufi mai tsayayya da zafi. ND-2 babban zafin jiki mai jurewa, ƙaramin faɗaɗawa da ƙarancin iskar gas mai ruɓi ND-3 mai tsananin zafin zafin jiki, ƙarancin faɗaɗa, ƙarancin iskar gas da yashi mai ruɓi mai ruɓiwa ND-4 Babban zafin jiki mai ƙarfi, ƙasa mai ƙarfi, ƙarancin faɗaɗa da ƙarancin fim mai fita.
• (4) Yashi mai ruɓi mai sauƙin sauƙaƙe yana da ƙarfi mai kyau da kyakkyawan aikin rushewar yanayin zafi, wanda ya dace don samar da simintin ƙarfe mara ƙarfe.
• (5) Wasu buƙatu na musamman da aka ruɓe yashi Don biyan buƙatun samfura daban-daban, an haɓaka jerin yashi mai rufi na musamman, kamar: yashi mai rufi don simintin centrifugal, yashi mai ruɓi mai sanyi, yashi mai ruɓi, yashi mai hana ruwa, da Veining, anti-orange peel rufi yashi, da dai sauransu.

Babban tsari na core yin tare da rufi yashi

 Zafin dumama shine 200-300 ℃, lokacin warkarwa shine 30-150s, kuma matsin harbin yashi shine 0.15-0.60MPa. Tsarin yashi tare da siffa mai sauƙi da yashi mai rufi tare da ruwa mai kyau na iya zaɓar matsin lamba na yashi ƙasa, kuma ƙananan yashi ya zaɓi zafin zafin dumama. Lokacin da zafin zafin jiki yayi ƙasa, ana iya tsawaita lokacin warkarwa yadda yakamata. Rufin da aka yi amfani da shi don yashi mai rufi shine resin phenolic. Ab advantagesbuwan amfãni daga cikin aiwatar-core tsari: dace ƙarfin yi; ruwa mai kyau; kyakkyawan farfajiyar ƙasan yashi (Ra = 6.3-12.5μm); ƙarfi juriya na shawar danshi na yashi; kyau rushewa da sauƙin tsaftace simintin gyare -gyare.

1. Mould (mold) zazzabi　

Zafin zafin jiki yana ɗaya daga cikin manyan abubuwan da ke shafar kauri da ƙarfin harsashi. Gabaɗaya ana sarrafa shi a 220-260 ° C kuma an zaɓi shi bisa ga ƙa'idodi masu zuwa: (1) Tabbatar da isasshen zafin da ake buƙata don laushi da warkar da resin akan yashi mai rufi; (2) Tabbatar cewa an samar da kaurin harsashin da ake buƙata kuma farfajiyar harsashi (ginshiƙi) ba a coke; (3) Yi ƙoƙarin takaita ɓawon burodi da lokacin taurin don inganta yawan aiki.

2. Matsalar harbin yashi da lokaci　

Ana sarrafa lokacin harbin yashi a tsakanin 3 ~ 10s. Idan lokacin ya yi gajarta, ba za a iya ƙirƙirar ƙurar yashi (core) ba. Matsalar harbin yashi gabaɗaya kusan 0.6MPa; lokacin da matsi ya yi ƙasa sosai, yana da sauƙi don haifar da isasshen harbi ko sassautawa. 3. Lokacin ƙwanƙwasawa: Tsawon lokacin taurari yafi dogara ne da kaurin ƙirar yashi (ginshiƙi) da zafin jiki na ƙirar, gabaɗaya kusan 60-120s. Idan lokacin ya yi gajarta, ba za a yi cikakken kwarin harsashi ba kuma ƙarfin zai yi ƙasa; idan lokacin yayi tsayi, saman murfin yashi (cibiya) yana da sauƙin ƙonawa da shafar ingancin simintin. Misalan sigogin tsari don ƙirar yashi mai rufi (ainihin): lambar serial lambar lambar kauri (㎜) nauyi (㎏) zafin zafin (℃) lokacin harbin yashi (lokacin) ƙwanƙwasa yashi (s) 1 (hannun riga) DN80-05 8 ～ 10 2.5 ～ 2.6 220 ～ 240 2 ～ 3 60 ～ 80 2 (jikin bawul) DN05-01 10 ～ 12 3.75 ～ 3.8 240 ～ 260 3 ～ 5 80 ～ 100

Matsalolin da ke cikin aikace -aikacen yashi mai rufi da mafita 　　　　

Akwai nau'ikan hanyoyin yin ginshiƙai da yawa, waɗanda za a iya raba su gida biyu: hanyoyin dumin zafi da hanyoyin sanyaya sanyi. Hanyoyin yin yashi mai rufi yana cikin rukunin hanyoyin thermosetting.

Duk wata hanyar yin ginshiƙi tana da nasa fa'ida da rashin nasa, wanda galibi ya dogara ne akan cikakkun abubuwan kamar buƙatun ingancin samfur, rikitarwa, rukunin samarwa, ƙimar samarwa, farashin samfur, da sauransu don tantance wace hanya ce ta yin amfani da ita. Yana da tasiri sosai don amfani da yashi mai rufi don murhun yashi tare da manyan buƙatu akan ingancin farfajiyar rami, madaidaicin girma, da sifofi masu rikitarwa. Misali: murfin yashi don ci da hanyoyin wucewa, murhun yashi mai ruwa, da murhun yashi na manyan injin silinda na mota, matattarar yashi na ruwa da keɓaɓɓun yashi mai ƙyalli don tubalan silinda, murfin yashi na yashi don abubuwan ci da yawa. , Runner sand core of hydraulic valve, air pass sand core of mota turbocharger, da dai sauransu. Anan zan yi magana a taƙaice game da ƙwarewar aiki.

1. Hanyar tantance ƙarfi da ƙarar gas na yashi mai rufi　　

A kan cewa ingancin yashi da resin ya tabbata, babban abin da ke shafar ƙarfin yashi mai ruɓi shine galibin adadin sinadarin phenolic da aka ƙara. Idan adadin sinadarin phenolic da aka ƙara yana da yawa, ƙarfin za a inganta, amma adadin fitar da ruwa ma zai ƙaru, kuma rushewar zai ragu. Sabili da haka, a cikin samarwa da aikace -aikacen, dole ne a sarrafa ƙarfin yashi mai rufi don rage adadin gas da haɓaka rushewar. Dole ne a sami ma'aunin ma'auni lokacin da aka tsara matakan ƙarfi. Wannan ma'aunin ma'auni shine don tabbatar da ingancin farfajiyar yashi da ƙarfinsa a ƙarƙashin ƙirar babu nakasa kuma babu ɓarna a yayin zubarwa. Ta wannan hanyar, za a iya tabbatar da ingancin farfajiya da daidaiton girma na simintin gyare -gyare, za a iya rage ƙarfin iskar gas, za a iya rage lalatattun ramuka na simintin gyare -gyare, kuma za a iya inganta aikin samar da yashi na yashi. Don adana murhun yashi, ana iya amfani da kayan aikin tashar jiragen ruwa da trolleys na yashi a cikin tsarin sufuri, kuma ana iya ɗora soso mai kauri na 10mm-15mm, wanda zai iya rage yawan asarar yashi.

2. Lokacin ajiya na murfin yashi mai rufi　　

Duk wani yashi yashi zai sha danshi, musamman a yankin kudanci inda dangin zafi yake da yawa. Dole ne a kayyade lokacin ajiya na yashi a cikin takaddun aiwatarwa, kuma ana amfani da hanyar samar da durƙushe na farkon-fitar don rage ƙimar adanawa da lokacin ajiyar sandar yashi. Kowane kamfani yakamata ya ƙayyade lokacin ajiya na ainihin yashi dangane da yanayin shuka da yanayin yanayin gida.

3. Sarrafa ingancin samar da yashi mai rufi

Dole ne yashi mai rufi ya kasance tare da kayan tabbatar da ingancin mai siyarwa lokacin da ya shiga masana'anta, kuma kamfanin zai bincika shi gwargwadon samfuran samfuran, kuma bayan dubawa ya cancanta za a iya sanya shi cikin sito. Tabbacin inganci da sashin fasaha za su yi sakamakon sarrafawa lokacin da gwajin samfur na kamfanin ya gaza, kuma yana da rangwame don karɓa ko mayar da kayan ga mai siye.

4. An sami yashi mai yashi mai ruɓi yana karyewa da gurɓatawa yayin yin ƙira

Naƙasasshewar ɓarna na yashi a lokacin yin ginshiƙi galibi ana ɗauka cewa ƙananan ƙarfi na yashi mai rufi. A zahiri, babban karaya da nakasa zai ƙunshi matakai da yawa na samarwa. Idan aka sami wani yanayi na rashin daidaituwa, dole ne a gano ainihin dalilin don a warware shi gaba ɗaya. Dalilan musamman sune kamar haka: 　

• (1) Zazzabi mai ƙyalƙyali da lokacin riƙewa na ƙirar yayin yin babban aiki suna da alaƙa ko kaurin kaurin yashi ya cika buƙatun tsari. Sigogin tsari da aka kayyade a cikin aikin suna buƙatar samun madaidaiciya, kuma wannan matakin yana buƙatar daidaitawa ta ƙwarewar mai aiki. Lokacin da zazzabi mai ƙyalƙyali yana kan iyaka na sama, lokacin riƙe da ƙirar zai iya ɗaukar mafi ƙarancin iyaka, kuma lokacin da zazzabi mai ƙyalƙyali yake a ƙananan iyaka, lokacin riƙewa na ƙirar na iya ɗaukar iyakar babba. Ana buƙatar a ci gaba da horar da masu aikin don inganta ƙwarewar aikin su.
• (2) Gudun Phenolic da barbashin yashi za su manne a kan ƙirar yayin yin babban aiki. Dole ne a tsabtace shi cikin lokaci kuma a fesa shi tare da wakilin saki, in ba haka ba za a karye ko yashi yashi lokacin da aka buɗe sifar.　　
• (3) Fil ɗin iskar bazara akan madaidaiciyar ƙirar ƙirar akwatin zafi mai zafi za ta karye ko taɓarɓarewa saboda gazawar na roba saboda aikin dogon lokaci a ƙarƙashin yanayin zafin jiki. Dole ne a maye gurbin bazara cikin lokaci.
• (4) Mould mold da static mold ba a layi ɗaya ba ko akan layin tsakiya ɗaya. Lokacin da aka rufe ƙirar, a ƙarƙashin matsin silin mai ko silinda na iska, ƙarshen fil ɗin matsayi yana da wani gangara, kuma har yanzu ƙirar za ta rufe sosai, amma lokacin da aka buɗe ƙirar, ƙirar mai motsi da The za a dawo da madaidaiciyar madaidaiciya zuwa matsayin ta na asali kuma za a karya ko yashi ya lalace. A wannan yanayin, yashi zai kare lokacin da aka harbi yashi, kuma girman yashi zai zama babba. Mafita ita ce daidaita daidaituwa da daidaituwa na ƙirar a cikin lokaci.　
• (5) Lokacin samar da murhun yashi mara nauyi a kan injin injin harsashi, lokacin da aka zubar da yashi mai ruɓi wanda bai lalace ba daga cikin gindin kuma yana buƙatar sake amfani da shi, dole ne a murƙushe yashin da ba a yi amfani da shi ba kuma a haɗa shi cikin rabo na 3: 7. , Don tabbatar da ingancin farfajiya da ƙarfi na ainihin yashi.

Da fatan za a adana tushe da adireshin wannan labarin don sake bugawa: Abin da ake Rufi Sand Gyare tsari

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