Zabar dama yumbu slurry don asarar masana'antar simintin kakin zuma Ayyukan ba game da haɗa foda da ruwa ba ne - game da sarrafa ƙananan ƙananan abubuwa ne, maimaita juzu'i, da amincin harsashi kafin digo na farko na narkakken ƙarfe yana gudana. Mun ga wuraren da aka gano da yawa sun zubar da kashi 30 cikin 100 na batch-ba daga lahani ba, amma daga zubewar harsashi, rashin ƙarfi na sama da ya wuce Ra 6.3 µm, ko fashewa yayin lalata. Wannan gazawar tana farawa tun kafin tanderun ta haskaka. Yana farawa tare da tsarin slurry, sarrafa rheology, da horon tsari.
Me yasa Ayyukan Slurry Ya Nuna Ƙimar Ƙimar Simintin Ɗaukaka-Ba kawai Ƙarshen Sama ba
Yawancin injiniyoyi suna ɗaukar slurry yumbu a matsayin tsarin ɗaure "black box". Amma a cikin babban madaidaicin saka hannun jari-musamman ga bawul ɗin ruwa, gidajen famfo, ko nozzles na cobalt alloy - slurry shine layin farko na aiki. Rarraba girmansa (yawanci 0.5-15 µm don haɗin zircon / multimullite), abun ciki mai ɗauri (28-32% don tsarin tushen ethyl silicate), da ƙididdigar thixotropic kai tsaye ƙayyade: ƙarfin harsashi (> 1.8 MPa pre-wuta), wasan haɓaka thermal tare da kakin zuma alamu (<0.3% rashin daidaitawa a 150°C), da ragowar ƙonawa (<0.05 wt% toka bayan 900 ° C). Mun auna wannan a duk faɗin ayyukan samarwa na 47: lokacin da danko ya ɓace sama da 18 – 22 cP a 25 ° C (ana auna shi a 100 rpm akan Brookfield LVDV-II +), bambancin kauri wanda ya karu da 42%, kuma watsawa mai girma akan ɓangarorin mahimmanci ya karu daga ± 0.05 mm zuwa .± 0.13 mm.
Shi ya sa manyan masana'antu ba sa sayen slurry kawai - sun cancanci shi kowane tsari. Suna gwada lokacin gel akan ASTM F2212, suna tabbatar da daidaiton pH tsakanin 2.8-3.4, da kuma waƙa da ɗaukar nauyi ta hanyar lanƙwasa-asara (LOI). Ɗayan famfo OEM ɗaya na Turai da muke tallafawa yana buƙatar ≤0.8% raguwar layin layi akan harsashi da aka harba - wanda za'a iya samu kawai tare da ma'auni na mullite-to-zircon mai sarrafawa da tsauraran lokaci na hydrolysis mai ɗaure. Jigon “off-the-shelf” slurries da wuya ya gamu da hakan.
Hanyoyi Guda Huɗu na Gaskiya na Duniya-da Yadda Za a Dakatar da su Kafin Ragewa
Matsalolin slurry da wuya suna sanar da kansu tare da ƙararrawa. Suna raɗawa ta hanyar alamomi:
- Dewaxing fasa: Wanda ya haifar da ƙaura mai saurin danshi a lokacin tururi autoclaving - gyarawa ta hanyar daidaita ma'aunin haɗin giciye da ƙara 0.15-0.25% colloidal silica azaman mai gyara hanyar sadarwa
- Ramin saman saman simintin bakin karfe: An samo shi zuwa ragowar ions chloride (> 50 ppm) a cikin alumina sol binders - an warware ta hanyar sauyawa zuwa rarrabawar alumina hydrate maras chloride.
- Shell delamination bayan harbe-harbe: An haɗa shi da rashin isasshen mannewa - an warware ta ta hanyar inganta lokacin tsoma (12-18 slurries) da kuma amfani da slurries masu zuwa: m gashin gashi (100-200 mesh stucco), gashin fuska mai kyau (325 raga), da ultrafine hatimin gashi (submicron zircon)
- Juyawa mai girma akan sassan sirara-banga: Ƙunƙarar bushewa mara daidaituwa - an rage shi ta dakunan bushewa masu sarrafa zafi (45-55% RH, 22-25 ° C) da matakan hawan iska.
Mun taɓa taimaka wa abokin ciniki na kudu maso gabashin Asiya rage aikin sake yin aikin harsashi daga 19% zuwa 2.3% a cikin makonni shida-ba ta hanyar canza masu kaya ba, amma ta shigar da viscometers na layi akan tankunan tsomawa da daidaita karatun zuwa bayanan CMM akan simintin ƙarshe. Ƙimar daidaitawa? 0.87.
Abin da Abokin Hulɗa na yumbu na Gaskiya ke bayarwa - Bayan Guga
A dogara yumbu slurry don asarar masana'antar simintin kakin zuma abokin tarayya yana yin abubuwa uku mafi yawan dillalai ba za su yi ba:
- Raba cikakkun takaddun fasaha: Ba kawai SDS zanen gado-amma barbashi size histograms, XRD lokaci rahotanni, da kuma binder hydrolysis kinetics charts
- Yana tabbatar da aiki akan lissafin ku: Yana gudanar da gwaji a kan ainihin ƙirar kakin zuma, yana auna kaurin harsashi tare da bincike-bincike na yanzu, kuma yana daidaita sakamako zuwa ƙayyadaddun ƙayyadaddun ƙarfe da aka yi niyya (misali, buƙatun girman hatsi AMS 5387)
- Yana haɗawa tare da sarrafa tsarin ku: Yana ba da bayanan daidaitawa na slurry don kayan stucco ɗinku na yanzu, sigogin sake zagayowar ɓata lokaci, da bayanan bayanan harbi-babu zato akan ƙimar ramp ko lokutan riƙewa.
Wannan matakin haɗin kai yana raba masu samar da kayayyaki daga abokan aikin injiniya. Abin da ya sa masana'antun kamar QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD - wanda ke samar da sassan famfo na cobalt mai buƙata. sifili rashin ƙarfi na ciki da ± 0.03 mm haƙuri - yana buƙatar slurry traceability zuwa adadi mai yawa, gami da takaddun shaida na bincike da rahotannin abun ciki na ɓangare na uku.
Neman Gaba: Slurry Intelligence Ba Zai Zabi Ba
Iyaka ta gaba ba kawai mafi kyawun sinadarai ba - amsa ce ta ainihi. Yanzu muna tura tankunan tankuna masu kunna IoT waɗanda ke lura da zafin jiki, danko, da pH kowane daƙiƙa 90, daidaitawa mai daidaitawa ta atomatik ta hanyar famfo mai alaƙa da PLC. Masu karɓa na farko sun ba da rahoton ƙarancin NCRs masu alaƙa da harsashi 37% da 22% mafi saurin cancantar sabbin iyalai (kamar T800 na tushen superalloys).
Amma fasaha kadai ba zai gyara ginshiƙai masu rauni ba. Fara anan: duba yadda ake sarrafa slurry ɗinku na yanzu. Kuna auna danko yau da kullun-ko kawai "tunanin daidaito"? Kuna shiga lanƙwasa matsa lamba tare da asarar nauyi na harsashi? Shin rabon stucco ɗin ku yana da takaddun shaida ta ISO 13320? Idan kowace amsar ita ce "a'a," a nan ne ake fara ɗibar yawan amfanin ƙasa.
Domin a cikin madaidaicin simintin saka hannun jari, slurry ba kawai ya shafi tsarin ba. Yana bayyana iyaka tsakanin nasara da tarkace - micron daya a lokaci guda.
