Yin simintin yashi ya kasance tsarin samar da ƙarfe da aka fi amfani da shi—wanda ke lissafin sama da kashi 70% na duk simintin da aka samar a duniya. Amma ga sababbin shiga cikin wani tushe, yawan adadin sassan simintin yashi yana iya jin nauyi. Siffofin, jurewa da ja, sprues, masu tashi, muryoyi, ƙofofi-kowannensu yana taka rawar da ba za a iya sasantawa ba a cikin ko simintin ya fito sauti ko guntu.
Mun ga ɗimbin injiniyoyi na farko sun yi kuskuren layin rabuwa yayin taron gyare-gyare. We’ve watched experienced technicians overlook vent placement—and end up with gas pockets in hydraulic valve bodies. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Inda muke samar da madaidaicin ƙarfe da simintin ƙarfe don babban matsi na famfo gidaje da cobalt-alloy nozzles, an tabbatar da kowane ɓangaren yashi mold - ba a ɗauka ba. Bari mu rushe mahimmanci sassan simintin yashi, ba a matsayin ma'anar littafin rubutu ba, amma a matsayin abubuwa masu aiki muna dogara da kullun don sadar da sassan da ke riƙe da matsa lamba 350+ ba tare da yabo ba.
Mahimman Abubuwan Da Ya Kamata Ku Fahimta Kafin Zuba
Tushen simintin yashi ba yashi ne kawai. Tsari ne na injiniya daidai da aka ƙera don sarrafa kwararar ƙarfe, ciyar da ƙarfafawa, da sakin iskar gas da aka kama. Anan ga sassan jiki guda biyar waɗanda ba za a iya sasantawa ba — da abin da ke faruwa idan kowa ya gaza:
- Tsarin: Cikakken nau'in kwafi na ɓangaren ƙarshe - yawanci ana yin shi daga itace, filastik, ko aluminum. Daidaiton sa kai tsaye yana bayyana juriyar juzu'i. Muna amfani da ƙirar aluminium da aka yi da CNC don gidaje na Silinda saboda suna riƙe ± 0.15 mm sama da tsayin mm 400-mahimmanci lokacin yin mashin ɗin rufewa bayan simintin.
- Kwafi da Jawo: A saman ( jimre ) da kasa (jawo) mold halves. Matsakaicin su shine layin rabuwa. Kuskure a nan yana haifar da walƙiya wanda dole ne a kashe shi-matakin sake aiki mai tsada da muke gujewa ta amfani da rajistar dowel-pin akan duk samfuran samarwa.
- Sprue: Tashar ta tsaye wacce narkakkar karfe ke shiga cikin kogon. Ya kunkuntar? Turbulence yana ƙara haɓakar oxide. Fadi ya yi yawa? Rashin ingancin ciyarwa. Don sassan famfo ɗin mu na cobalt gami da T800, muna girman sprues dangane da lissafin kan ƙarfe-ba tsarin tsarin mulki ba.
- Riser: Tafki da aka sanya sama ko kusa da simintin gyare-gyare don ciyar da raguwa yayin ƙarfafawa. Kuskure na gama gari: rage girman masu tashi don sassa masu kauri. A daya tsari na piston famfo Silinda housings, rashin isasshen riser girma sa centerline porosity-gano kawai a lokacin ultrasonic dubawa. Yanzu muna kwaikwayi ƙarfi tare da MAGMAsoft kafin ƙirƙirar ƙirƙira.
- Core: Yashi dabam dabam wanda ke haifar da cavities na ciki-kamar wurare masu sanyaya ko ramukan bawul. Dole ne Cores su yi tsayayya da matsa lamba na ƙarfe da zafin jiki. Muna amfani da yashi silica da aka haɗa da sinadarai tare da resin fure don ƙarfin gaske, sannan mu gasa a 220 ° C na minti 90. Rukunin da ba a toya ba sun ruguje ƙarƙashin narkakkar karfe 1,450°C.
Me yasa Ƙofar Ƙofar ke raba Dogaran simintin gyare-gyare daga Scrap
Gates-tashoshin da ke haɗa sprue zuwa rami-ba a cika yin magana ba, duk da haka suna ƙayyadaddun amincin saman ƙasa, tsarin hatsi, da rarraba haɗawa. Wasu na iya jayayya cewa wurin ƙofa na biyu ne ga ƙirar ƙira. Koyaya, a cikin kwarewarmu tare da abubuwan haɗin AMS 5387 cobalt alloy 6, gating mara kyau yana haifar da gazawa guda uku da za a iya maimaitawa: sanyi yana rufewa kusa da bangon bakin ciki, yashwar yashi a cikin yankuna masu saurin gaske, da zubar da tarko a wuraren shiga rami.
Muna amfani da ƙofar ƙasa don dogayen gidaje masu sirara don rage tashin hankali. Don sassa masu ma'ana kamar winch center shaft rollers, muna amfani da ƙofofin radial da yawa-tabbatar da ciko iri ɗaya da haɓakar jagora zuwa masu tashi. Ana ƙididdige kowane ɓangaren giciye na ƙofa ta amfani da ƙa'idar Bernoulli da aka daidaita don ɗankowar ƙarfe da raguwar zafin jiki. Wannan ba ka'idar ba ce - shine yadda muke cimma Cpk> 1.33 akan mahimman diamita a cikin ayyukan samarwa na 500+.
Abin da Masu farawa ke Kallon: Vents, Rarraba Sand, da Lokacin Shakeout
Fitowa ƙananan ramuka ne - galibi diamita 1-2 mm - ana hako su ta hanyar jurewa ko ja don barin iska da iskar gas su tsere. Tsallake su, kuma kuna samun ramuka ko busa. Muna huda huluna da hannu bayan taron gyare-gyare, muna sanya su a wuraren da za a cika na ƙarshe da aka gano a cikin siminti. Babu aiki da kai-saboda kayan aiki yana canza lissafin lissafi, kuma rashin daidaituwar iska yana lalata ƙananan tsarin.
Rarraba yashi — lallausan lallausan ƙura da aka toka a tsakanin jurewa da ja-dole ne ya bushe, mai gudana, kuma mara ɗaurewa. Muna amfani da calcined alumina foda, ba graphite ba. Graphite yana jujjuya danshi cikin ƙirar ƙirar ƙira kuma yana haɓaka lahani a cikin simintin ƙarfe na bakin karfe.
Shakeout lokaci yana da mahimmanci fiye da yadda yawancin mutane suka sani. Cire simintin gyare-gyare da wuri yana haifar da tsagewar zafin zafi-musamman a cikin babban ƙarfe na carbon. Ya yi latti, kuma saura zafi yana haifar da ɓarna a cikin abubuwan da aka naɗa. Matsayinmu: Simintin sanyi mai sanyi har sai yanayin zafin saman ya faɗi ƙasa da 150 ° C, an tabbatar da shi tare da ma'aunin zafi da sanyio na IR-ba masu ƙidayar lokaci ba.
Daga Mold zuwa Sashe Mai Muhimmanci: Inda Yashi Ya Dace A Yau
Yashi simintin gyare-gyare ba fasaha ce ta gado ba - shine tushen masana'anta. A QINGDAO QIANGSENYUAN TECHNOLOGY, muna hade yashi-simintin blanks tare da Multi-axis CNC machining, zafi magani, da kuma surface karewa-duk a karkashin daya ISO-compliant rufin. Wannan ikon tsaye yana ba mu garantin yarda da GD&T akan fasalulluka kamar haɗakar da-zuwa-flange (± 0.05 mm) ko ƙarancin ƙasa Ra ≤0.8 µm akan fuskokin rufewa.
Idan kuna ƙayyadaddun mahalli na bawul ɗin matsa lamba ko ɓangaren injin abin hawa, fahimtar sassan simintin yashi yana nufin sanin inda haƙuri ya taru, inda lahani ya samo asali, da yadda zaɓin ƙira ke shafar farashi da lokacin jagora. Yana nufin tambayar ba za a iya jefa shi ba? amma "Ta yaya kowane kayan gyare-gyare zai kasance a 1,520 ° C tare da lokacin zub da dakika 12?"
Wannan shine bambanci tsakanin zane da abin bayarwa. Kuma shine dalilin da ya sa abokan cinikinmu-daga Arewacin Amurka zuwa kudu maso gabashin Asiya-ku aiko mana da zane-zane masu wadatar GD&T tare da cikakkun bayanai na ƙarfe, ba kawai zane-zane ba. Domin sun san gyambon ba akwati ba ne kawai. Yana da matakin farko na kula da inganci.
