Sodium silicate yashi simintin simintin gyare-gyare ba kawai wani tsari ba ne - shine madaidaicin kashin baya na sassan ƙarfe waɗanda dole ne su tsira daga girgizar ruwa, lalacewa, da hawan keke a cikin tsarin masana'antu na ainihi. Lokacin da matsi na bawul gidaje fashe a karkashin 350 mashaya ko cobalt gami famfo bututun ƙarfe bututun ƙarfe ya ɓace bayan sa'o'i 800 na aiki, tushen dalilin sau da yawa yakan koma zuwa ga daidaiton gyare-gyare mara daidaituwa, rashin kulawar lalata mai ɗaure, ko ƙauran silica mara sarrafa yayin shakeout. Mun gan shi da hannu: abokan ciniki jigilar kaya zuwa Tier-1 na'ura mai aiki da karfin ruwa OEMs a Jamus da Arewacin Amurka sun yi watsi da simintin farko-ba saboda babban kuskuren girman girman ba, amma saboda ƙananan ƙwayoyin cuta kusa da wuraren rufewar zafi da aka yi wa zafi ya haifar da ɗigon aiki yayin gwajin lalatawar matsin lamba.
Me yasa Sodium Silicate Sand Casting Ya Bukaci Fiye da Lasisin Foundry kawai
Yawancin masu samar da kayayyaki suna kiran kansu a masana'antar simintin yashi sodium silicate, amma kaɗan ne ke sarrafa cikakken sarkar daga sinadarai masu ɗaure zuwa kwanciyar hankali bayan simintin. Sodium silicate (Na₂O·nSiO₂) yana ba da kyakkyawan ƙarfi kore da ragowar ash - amma kawai idan an warke daidai da CO₂ iskar gas, zafi, da lokacin zama wanda ya dace da rarraba hatsi da sashin lissafi. Ko kadan CO₂? Rawanin ƙura, shigar ƙarfe, da jijiya. Yi yawa? Gaggautsa gyaggyarawa, ɗigon yashi, da motsi mai mahimmanci. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Muna gudanar da gwaje-gwajen rheology a cikin gida kafin kowane tsari, saka idanu CO₂ maida hankali a cikin ainihin lokaci tare da na'urori masu auna firikwensin IR, kuma muna tabbatar da zurfin warkarwa ta amfani da takaddun shaida na gwaji-ba wai kawai karatun taurin saman ba. Wannan shine yadda muke riƙe ± 0.3 mm haƙuri akan 420 mm mai tsayi piston famfo silinda gidaje a cikin ASTM A48 Class 35 baƙin ƙarfe - ba tare da izinin injina cin abinci cikin kaurin bango ba.
Inda Daidaitaccen Simintin Yashi Ya Kasa—da Yadda Haɗin Ƙarfi Ya Gyara Shi
Wasu na iya jayayya cewa simintin silicate na sodium ba zai iya daidaita simintin saka hannun jari ba don kammala saman. Gaskiya - don madubi-mai laushi injin injin turbin sararin samaniya, ba zai yiwu ba. Amma don abubuwan da ke aiki kamar injiniyoyin abin hawa winch center shaft rollers ko AMS 5387 cobalt alloy plugs, rashin daidaituwa na Ra 6.3 µm ba sulhu bane - fa'ida ce. Yana ba da maɓalli na inji don jujjuyawar CNC na gaba, yana rage lokacin niƙa da 40%, kuma yana kiyaye amincin ƙasa inda wuraren da zafi ya shafa daga ƙarewar wuce kima zai raunana juriya ga gajiya. Kayan aikin mu mai yarda da ISO yana yin duka biyu: simintin yashi a cikin dakunan zafi mai sarrafawa, sannan canja wuri kai tsaye zuwa sel CNC mai axis 5 don sarrafa kayan aiki. Babu sake gyarawa. Babu tsarin tafiyar hawainiya. Mun yanke jimlar lokacin jagora don nozzles na tushen cobalt na T800 daga makonni 14 zuwa 9—ta hanyar kawar da jigilar tsakanin tsari, sake dubawa, da daidaita bayanai.
Hudu Marasa Tattaunawa don Sassan Cast ɗin Mahimmanci
Lokacin da abokin cinikin ku ya ƙayyadad da ASTM A743 CF8M ko AMS 5387, waɗannan sarrafawa guda huɗu sun ware abin dogaro daga gazawar filin filin:
- Abubuwan ganowa zuwa lambar zafi-ba wai kawai takardar shedar niƙa ba, amma tabbataccen gani a cikin dubawa mai shigowa da kuma riƙe rajistan ayyukan remelt
- Ingantacciyar ma'auni kafin da bayan rage damuwa-Amfani da CMM masu ƙima tare da ƙididdigar zafin jiki, ba kayan aikin hannu ba
- Binciken Microstructure akan kowane kuri'a na 5th- an tabbatar ta hanyar sassan giciye a ƙarƙashin 100 × haɓakawa don watsawar carbide da tazara hannun dendrite
- Gwajin aiki mai daidaitawa zuwa zagayen aiki na ƙarshen amfani-kamar hawan hawan hawan keke na zagaye 10,000 akan jikin bawul, ba gwaje-gwajen fashe ba kadai ba.
Mun haɗa duka huɗun-ba azaman ƙara-kan zaɓi ba, amma azaman ƙofofin da ba za a iya wucewa ba a cikin aikin samar da mu. Wannan shine dalilin da ya sa kashi 92% na maimaita odar mu don tushen famfo mai da iskar gas ya zo tare da buƙatun canjin injiniyan sifili a cikin shekaru uku a jere.
Abin da ke zuwa na Gaba don Ƙarƙashin Yashi Mai Girma
Gaba ba game da maye gurbin sodium silicate ba - yana da zurfin zurfafa hankali. Yanzu muna inganta algorithms na CO₂ na AI wanda ke daidaita yawan kwararar iskar gas dangane da matakan zafin jiki na ainihin-lokaci. Muna haɓaka bambance-bambancen masu ɗaure ƙananan sodium tare da masu samar da kayan don rage ragowar alkali a cikin manyan abubuwan haɗin chromium-yanke lokacin tsaftacewa bayan simintin da kashi 30%. Kuma muna faɗaɗa simintin simintin simintin GD&T zuwa tuta yuwuwar ɗumbin wuraren zama *kafin* amincewar tsari-ba bayan kin amincewa da labarin farko ba. Ga injiniyoyin da ke ƙayyadaddun bawul ɗin matsa lamba, gidaje na silinda, ko abubuwan haɗin cobalt-nickel, wannan yana nufin ƙarancin maimaitawa, ƙarancin ƙima, da ingantaccen aiki-ba kawai yarda da takarda ba. Madaidaicin sassa na ƙarfe ba sa farawa a madaurin CNC. Suna farawa inda yashi ya hadu da sodium silicate - kuma su kasance daidai gaba ɗaya.
