Abubuwan Da ke haifar da lahani na yau da kullun a cikin toshe Ginin Cast Silinda

Fitowar gilashin ruwa yana da tarihin fiye da shekaru 300, amma a matsayin mai ɗaure don simintin gyare-gyare da yin core, ba har zuwa 1947 cewa aikin yashi na gilashin ruwa tare da CO2 a matsayin wakili mai taurin ya samo asali ta hanyar Dr. L. Petrzela na Jamhuriyar Czech. na.

Fiye da rabin karni, mutane sun shiga cikin manyan matakai guda hudu don fahimtar tsarin tauraruwar yashi na sodium silicate a ci gaba da bincike da bincike, wato:

• 1) Ka'idar CO2 pure chemical hardening na Farfesa Lias (Лясс A.M.) na tsohuwar Tarayyar Soviet a cikin 1950s. Ya rarraba tsarin taurin zuwa cikin bazuwar silicate, samuwar silica gel, da kuma asarar ruwa daga gel ɗin silica. Ya yi kuskure ya yi imani cewa hazo na silicic acid da samuwar silica gel shine ƙarfin CO2 mai taurin sodium silicate yashi. Tushen tushe
• 2) A cikin 1960s, tsarin hardening na CO2 yashi gilashin ruwa ta Worthington R an dauke shi a matsayin hade da sinadaran da taurin hanyoyin jiki, wato, sodium silicate bazu zuwa free silicic acid karkashin catalysis na CO2, sa'an nan kuma takure cikin cikin. gel siliki. Dehydration na silicone gel zai haifar da "silicone gel bonding", wanda shine nau'in "taurin sunadarai"; Dehydration na gilashin ruwa da ba a yi amfani da shi ba zai haifar da "haɗin gwiwar vitreous", wanda ke cikin "taurin jiki". Amma ya yi kuskure ya yi imanin cewa tauraruwar sinadarai hanya ce mai inganci da saurin taurare, tare da yin watsi da muhimmiyar rawar tauraruwar jiki;
• 3) A farkon shekarun 1990, gilashin ruwa na CO2 da Zhu Chunxi da sauran jama'a suka yi a cikin ƙasata shine ainihin ka'idar "taurin jiki". Ya yi imanin cewa yashi gilashin ruwa yana busawa CO2 hardening dole ne ya kasance a ƙarƙashin yanayi na musamman, wato, gilashin ruwa an rufe shi a saman sassan yashi don samar da fim mai kauri na 'yan microns kawai, wanda zai iya haifar da kyau. yanayin rashin ruwa da inganta saurin ƙarfafa gilashin ruwa. , Don haka an ce "taurin gilashin ruwa shine ainihin taurin jiki." Rashin hasara na wannan ra'ayi shine cewa har yanzu yana bin ra'ayi mara kyau cewa silicic acid kyauta yana tasowa lokacin da sodium silicate yayi amsa tare da CO2.
• 4) A karshen shekarun 1990, Zhu Chunxi da sauransu bisa ka'idar cewa CO2 hardening nasa ne na kimiyya mai wuyar gaske, bayan zurfafa bincike, sun ba da shawarar cewa gilashin ruwa mai tauri wani nau'i ne na "glass high modules water glass" . Ka'idar, wato, silicic acid da aka haifar ta hanyar amsawa ba za a iya haɓakawa a cikin yanayin kyauta ba, amma an sake narkar da shi a cikin gilashin ruwan da ba a yi ba, yana ƙara haɓakar yanayin na ƙarshe don gane taurin gilashin ruwa. Alal misali, lokacin da aka yi amfani da vinegar don taurara yashi sodium silicate, za a iya samun fim mai tauri mai girma-modulus sodium silicate fim tare da ma'auni na kayan aiki daga saman da ciki, wanda ke kusa da M=3.45. Lokacin da ake amfani da CO2 don taurara gilashin ruwa, ana samun fim ɗin gilashin ruwa mai ƙarfi mai ƙarfi mai ƙarfi tare da raguwar haɓakawa a hankali daga saman da ciki, tare da matsakaicin M kusa da 3.79.

Don haka, gilashin ruwa mai tauri wani nau'in gilashin ruwa ne mai tsananin bushewa, wanda za'a iya ƙarfafa shi ta hanyar asarar alkali da ruwa.

By 2008, Jamus C. Wallenhorst et al. An yi imanin cewa za a iya raba yanayin ɗaukar nauyin yashi na sodium silicate zuwa nau'i biyu masu zuwa, kamar yadda aka nuna a cikin hoto 1.

1.1 Yanayin A

A gaban maganin acidic ko wakili na warkarwa (CO2 ko Organic ester), yawan haɓakar ƙwayoyin colloidal a cikin gilashin ruwa yana da jinkirin gaske, amma kai tsaye yana haɗuwa cikin gel ɗin cibiyar sadarwa mai girma uku.

1.2 Yanayin B

A ƙarƙashin yanayin maganin alkaline ba tare da wakili na warkewa ba (a ƙarƙashin dumama), ƙwayoyin colloidal sun fara girma kuma su samar da tsarin sol; kuma ɓangarorin sol ɗaya ɗaya na iya samar da tsarin cibiyar sadarwa mai girma uku kawai a ƙarƙashin aikin haɗin gwiwa na mai haɓakawa.

Kwayoyin silicic acid guda ɗaya na iya girma zuwa manyan ƙwayoyin colloidal (yanayin B), ko kuma za su iya haɗawa cikin sarkar da tsarin gel na cibiyar sadarwa (yanayin A). A cikin waɗannan nau'ikan halayen haɓakawa guda biyu, tsarin amsa sinadarai iri ɗaya ne - ta hanyar ɗaukar motsi tsakanin ƙungiyoyin ayyukan silanol guda ɗaya, bushewa da haɗi zuwa sabon fili na siloxane.
"Yana iya ganin cewa hardening dauki yanayin gilashin ruwa yafi dogara da pH darajar da ɗaure bayani. A cikin low PH darajar (a gaban CO2 ko Organic ester curing wakili) silicic acid aqueous bayani, yana da amfani ga yanayin halayen hardening A. A wannan lokacin, saurin amsawar hardening yana da sannu a hankali, kuma ƙwayoyin colloidal suna haɗuwa da juna don samar da tsarin gel mai rassa.

Lokacin da ƙimar pH na silicic acid bayani mai ruwa> 7 (babu CO2 ko esters Organic da zafi-fara), yanayin ɗaukar nauyi B yana ci gaba don samar da babban tsarin sol. A cikin yanayin bayani tare da darajar pH mai girma, kwayoyin suna girma da sauri da sauri cewa ƙarfin hali ya fi girma saboda ci gaba da haɓakar ƙwayoyin colloidal ban da samuwar tsarin gel. A gaskiya ma, abin da ke faruwa na haɗuwa cikin tsarin cibiyar sadarwa an hana shi.

Lokacin da yashi gilashin ruwa tare da totur yana mai tsanani kuma ya taurare, tsarin ɗaukar nauyi shine kamar haka:

Bayan babban gilashin ruwan yashi ya yi zafi kuma yana motsa shi, yana tafiya bisa ga yanayin ɗaukar nauyi na B (duba Hoto 1), kuma ƙwayoyin colloidal sun girma kuma suna samar da tsarin sol. A wannan lokacin, yayin da tauraruwar tauraruwar ke ci gaba, ko dai za a iya samar da tsarin ƙwanƙwasa iri ɗaya ko wani tsari mai wasu lahani. Adadin lahani zai shafi aikin sa na gaba kai tsaye, kamar juriyar danshin yashi.

Lokacin da ruwan gilashin yashi ya karu ta hanyar CO2 gas, ko kuma lokacin da ester Organic ya taurare, sol ion guda ɗaya zai ci gaba bisa ga yanayin ɗaukar nauyi A, kuma ƙwayoyin colloidal za su haɗu da juna don samar da tsarin gel. . Idan babu wani wakili mai warkarwa a cikin silicic acid alkaline bayani, silica gel barbashi na iya tabbata a cikin maganin alkaline. Wannan saboda saman ɓangarorin colloidal yana da tasirin lantarki na Layer biyu na lantarki na ion sodium mai inganci. Sakamakon ƙwayoyin colloidal suna tunkuɗe juna kuma ba a haɗa su ba. Idan akwai wani inorganic totur a cikin hardening tsari na sodium silicate yashi, zai iya aiki a matsayin giciye-linking wakili tsakanin colloidal barbashi, wato, inorganic totur na iya haɗa mutum sol barbashi da juna ta hanyar aiki reactive kungiyoyin a kan ta saman. . Tare, an kafa hanyar sadarwa mai girma uku na kwarangwal na silicate, don haka mai ɗaure ya yi sauri da ƙarfi kuma an haɗa sassan yashi kuma an kafa su.

Idan ba a ƙara inorganic inorganic acceleton, samuwar silicate kwarangwal na cibiyar sadarwa tsarin ne sosai jinkirin a lokacin da na biyu hardening tsari, da kuma shirya yashi core nuna shortcomings kamar low nan take ƙarfi da rashin danshi juriya.

Ta hanyar nazarin tsarin tauraruwar gilashin da ke sama, za a iya ganin cewa, ko da yake akwai hanyoyi daban-daban na taurare don yashi sodium silicate, ana iya raba su ta al'ada zuwa taurin jiki da taurin sinadarai, kuma tsarin tauraruwar ya kasance daidai da haɗin kai. na. Wato, hanyar ester hardening na Organic ester yashi na sodium silicate yashi yana da daidai wannan na'urar taurin kamar hanyar CO2 hardening, wanda galibi ya dogara ne akan taurin jiki na bushewar gilashin ruwa wanda bai dace ba, wanda shine babban dalilin ƙarfin mold (core) yashi; Don samar da silicon da ke siliniyar silsium na gel ana inganta shi ta hanyar hadin gwiwar danshi siliki, da inganta tsarin danshi na yashi, da inganta tsarin danshi na karmaciya da kuma taurarin .

Dangane da zurfin bincike na tsarin hardening na sama sodium silicate yashi tare da daban-daban hardening hanyoyin (CO2 Hanyar, Organic ester Hanyar da dumama + kara hanya, da dai sauransu), da kuma bincika tasirin gilashin ruwa bonding ƙarfi da danshi. juriya daga matakin tsarin kwayoyin Babban abubuwan da ke haifar da tasiri tsakanin gilashin ruwa da aikin da za a iya rushewa, don canza tsarin da tsarin halittar gilashin ruwa daga hangen nesa na kwayoyin, da kuma haɓaka sabon taurin dumama + mai kara ruwa gilashin yashi sabon tsari, don haka inganta bonding ƙarfi na ruwa gilashin yashi. Manufar haɓaka juriyar danshin sa da haɓaka ayyukansa na rugujewa shine ci gaba da haɓakawa da haɓaka aikin aiwatar da yashi na sodium silicate yayin ci gaba da shawo kan gazawar sa na asali, don haka ya zama mafi kyawun simintin kore a cikin ƙarni na 21st. Tsaftace manne.

2 Tsarin aiwatar da sabon yashi mai ɗaure inorganic

2.1 Ƙarfin aikin haɗin gwiwa

Ta hanyar shirya amorphous phosphate da yin amfani da shi don gyara gilashin ruwa, ƙarfin haɗin kai na mahaɗin inorganic yana inganta.

Don ƙara haɓaka ƙarfin haɗin gwiwar yashi silicate na sodium, an ɓullo da na'ura mai sauri. Ta hanyar haɗin gwiwar sinadarai da taurin kai, ƙarfin nan take na yashi silicate na sodium silicate zai iya inganta sosai. Lokacin da aka ƙara haɓakar kwayoyin halitta a 1.5%, ƙarfin ƙarfin ƙarfi nan take Ƙarfin zai iya kaiwa 1.8MPa.

2.2 Juriya da danshi na ainihin yashi

Gabaɗaya magana, ƙarfin yashin gilashin ruwa wanda ya taurare da iska mai zafi zai ragu a hankali a cikin yanayi mai ɗanɗano. Domin inganta juriyar danshi na sodium silicate yashi, a gefe guda, ragowar damshin da ke cikin yashi yana cire gaba daya bayan taurare, sannan a daya bangaren kuma, ana amfani da hanyar hadewar sinadarai da taurin. Lokacin da aka ƙara mai haɓakawa zuwa 1.5%, ƙarfin ƙarfin ƙarfin sodium silicate yashi ba zai ragu ba, amma zai ƙaru kadan bayan an sanya shi a 20 ° C da 80% zafi na dangi na 24 hours.

2.3 Kaddarorin kwarara na core yashi

Tashin hankali na gilashin ruwa da kansa yana da girman gaske, wanda ya sa rashin daidaituwa tsakanin gilashin ruwa da yashi silica mara kyau, kuma dankowar gilashin ruwa don yin simintin gyare-gyare yana da girma sosai, don haka danko na yashi gilashin ruwa bayan yashi. hadawa yana da girma sosai, kuma ɓangarorin yashi suna manne da gilashin ruwa. Juriya na motsi yana da girma sosai, yana haifar da ƙarancin ruwa na yashi silicate na sodium, kuma a ƙarshe yana rage ƙaƙƙarfan tushen harbi. A cikin wannan gwaji, an ƙara abubuwan da ake amfani da su na surfactants da ƙwaƙƙwaran man shafawa don inganta yanayin yashi sosai.

Dangane da yin amfani da abubuwan da ake amfani da su na surfactants da ƙwaƙƙwaran man shafawa, wannan gwaji ya ɓullo da na'ura mai ɗaukar hoto, wanda ya inganta yanayin yashin gilashin ruwa sosai.

Da fatan za a adana tushe da adireshin wannan labarin don sake bugawa:Abubuwan Da ke haifar da lahani na yau da kullun a cikin toshe Ginin Cast Silinda

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