Teburan ƙirƙira na Granite don siyarwa ba kawai ƙwanƙwasa masu nauyi akan ƙafafu na ƙarfe ba ne - su ne tushen shiru na ainihin aikin ƙarfe. Mun kalli shaguna a duk faɗin Arewacin Amurka da Turai suna maye gurbin benci na ƙarfe na ƙarfe tare da saman aikin granite - kuma a cikin kwanaki 90, yawan abin da suke yi na farko ya tashi da matsakaicin kashi 12%. Me yasa? Saboda kwanciyar hankali na thermal yana da mahimmanci fiye da tsauri lokacin da kuke riƙe ± 0.005 ″ juriya akan maƙallan hatimi ko sassan chassis-yanke laser.
Me yasa Granite-Ba Karfe ko Simintin ƙarfe ba—Nasara a cikin Ƙirƙirar Duniya ta Gaskiya
Yawancin injiniyoyi suna ɗauka cewa "nauyi mai nauyi" yana nufin ƙarfe mai kauri. Amma nauyi kadai ba ya dakatar da girgiza. Matsakaicin damping na Granite shine 3-5 × mafi girma fiye da simintin ƙarfe da 10 × sama da ƙarfe na tsari. A cikin gwaje-gwajen masana'antar mu, madaidaicin madaidaicin CNC wanda aka ɗora akan tebur ɗin granite baki mai inci 3 ya nuna ƙarancin jita-jita na 68% a 120 Hz fiye da saitin iri ɗaya akan tushe na 2 ″ welded karfe. Wannan yana fassara kai tsaye zuwa mafi tsaftataccen gefuna, wuraren rami mai maimaitawa, da ƙarancin sake zagayawa.
Granite kuma yana tsayayya da zazzagewar zafi. Shagon masana'anta na yau da kullun yana ganin yanayin zafin bene na ± 8°C kowace rana. Ƙarfe benci yana faɗaɗa / kwangila a 12 µm / m · ° C; granite yana motsawa kawai 0.5-0.8 µm/m·°C. Sama da saman mita 2, wannan shine motsi na 0.24 mm a cikin karfe da 0.02 mm a cikin granite - isa ya jefar da binciken CMM ko kuskuren mutuwar lankwasawa.
Ba mu ba da shawarar granite don wuraren juzu'i mai tasiri ba-kamar tashoshi na ƙirƙira ko benayen latsa ruwa na ruwa. Amma don dubawa, taro, jigging, da daidaitaccen aikin shimfidar wuri? Ba abin tattaunawa ba ne. Kuma eh — yana sarrafa sarrafa ƙarfe na yau da kullun. Benci na gwajin mu ya tsira da hawan keke 1,200 na jan zanen karfe 12-ma'auni mai sanyi mai birgima a saman saman sa tare da sifili ko ƙarami ko guntuwar gefen.
Abin da Masu Siyayya A Haƙiƙa Ke Bukata—Ba Abin da Rubuce-rubucen Yayi Alkawari ba
Lissafin "Granite ƙirƙira tebur don siyarwa" galibi suna ɓoye mahimman bayanai. Ga abin da ke raba benches masu aiki da masu nauyi na takarda masu tsada:
Abubuwan daraja: Sai kawai ASTM C615 Grade A ko B baki granite (misali, Baƙar fata, Baltic Brown) yana ba da daidaiton yawa da ƙarancin porosity. "Masu kamannin granite" masu daraja-kasuwa suna fashe a ƙarƙashin dorewar ma'ana. Hakuri mai laushi: Karɓi wani abu da ya wuce ± 0.002″ sama da mita 1—ko ± 0.008″ sama da mita 4. Duk wani abu da ya fi faɗi yana gayyatar ɓarna a lokacin manne. Hauwa mutunci: Dole ne ƙafafu su kulle kai tsaye a cikin dutse-ba cikin abubuwan da aka cika da epoxy ba. Mun ga tebur uku sun kasa a cikin watanni 18 saboda masana'antun sun yi amfani da tsarin anka mai ɗaure kawai. Ƙarshen saman: 60-80 grit honed shine mafi kyau duka. Madubi goge yana nuna haske amma yana ɓoye alamomin shimfidawa; m ƙare ya kama tarko da sawa da sauri. Wasu masu saye suna tambaya: "Zan iya yin walda a kai?" A'a - ba za ku iya ba. Granite yana fashe sama da 300 ° C. Amma ku iya Dutsen walda jigs, ƙasa clamps, da Magnetic sansanonin a amince. Kawai kiyaye hanyoyin zafi> 150 mm nesa.
Kasuwancin Duniya na Gaskiya-Babu Sugar
Granite ba sihiri bane. Yana da iyaka-kuma sanin su yana hana kurakurai masu tsada.
Na farko: nauyin jigilar kaya. Madaidaicin tebur 2400 × 1200 × 76 mm yana auna ~ 1,450 kg. Wannan yana buƙatar ƙarfafa tasoshin lodi, jakunan pallet waɗanda aka ƙididdige nauyin kilogiram 2,000, da kuma aƙalla ma'aikatan da aka horar da su don saukewa. Mun taɓa ganin wani abokin ciniki yana ƙoƙarin ɗaga ɗaya tare da cokali mai yatsa-ya kama tine biyu kuma ya fashe dutsen tare da layin fissure na halitta.
Na biyu: lokacin shigarwa. Matsakaicin granite ba kamar soke ƙarfe ba ne. Kuna buƙatar ƙafar ƙafa masu daidaitawa, ƙwararrun mashin ɗin, da mafi ƙarancin sa'o'i 2-4-har ma tare da bene na kankare. Taimakon da ba daidai ba yana haifar da karaya a cikin lokaci.
Na uku: farashi. Ee, tebur na granite yana da 2.3 × fiye da madadin karfe mai nauyi. Amma abokan cinikinmu suna ba da rahoton dawowar kuɗi a cikin watanni 14-18 ta hanyar rage tarkace, amincewa da labarin farko cikin sauri, da ƙananan mitar sake daidaita yanayin awo. Ɗaya daga cikin dillalan kera motoci na Tier-1 ya yanke zagayowar tabbatarwar su ta CMM daga mako-mako zuwa kwata bayan canzawa.
Yadda Ake Ƙira-Ba tare da Konewa ba
Kada ku yi oda "tebur na granite." Yi oda wannan:
Kayan abu: ASTM C615 Grade Baƙar fata baƙar fata, wanda aka haƙa a Indiya ko Brazil (an tabbatar ta hanyar takardar shedar niƙa) Girma: Madaidaicin tsayi × nisa × kauri, tare da haƙuri ± 0.5 mm Lalata: Tabbatarwa ta ASME B89.3.7, an ruwaito azaman max ƙetare kan cikakken saman Yin hawa: Hudu M16 threaded abun da ake sakawa, 40 mm zurfi, tsakiya 100 mm daga kowane kusurwa Gama: 70-grit honed, gefuna sauƙaƙa zuwa radius 1.5 mm Takaddun bayanai: Rahoton daidaitawa, takardar shaidar kayan aiki, da takardar dubawa mai girma da aka haɗa Botou Haijun Metal Products Co., Ltd. yana gina tebur na ƙirƙira na al'ada zuwa waɗannan takamaiman ƙayyadaddun bayanai-ba azaman ƙara-kan ba, amma azaman tsarin tsarin injiniya. Muna haɗa su tare da madaidaicin madaidaicin hatimin hawa, ƙafafu na bakin karfe, da gashin keɓewar girgiza. Kowane tebur yana jigilar kaya tare da bayanan QC mai iya ganowa-ba kawai sitika ba.
Kalma ta Ƙarshe: Madaidaicin Farawa Ƙarƙashin Ƙafar
Wurin aiki ba ya yin sassa. Amma yanayin da ba a sarrafa shi ba yana ba da garantin canji. Teburan ƙirƙira na Granite don siyarwa suna isar da ROI mai aunawa inda maimaitawa, kwanciyar hankali na zafi, da kwanciyar hankali na dogon lokaci ke bayyana nasara-ba ƙarfi kawai ba. Idan tsarin ku yana da ƙarfi fiye da ± 0.010″, ba ya jure wa magana da ke haifar da girgiza, ko kuma yana buƙatar sabis na shekaru da yawa ba tare da sake gyarawa ba, granite ba zaɓi bane. Yana da tushe.
Ziyarci haijunmetal.com don neman takardar ƙayyadaddun bayanai, bitar nazarin shari'ar gaskiya daga injinan aikin gona da abokan cinikin kayan gini, ko tsara bita na DFM kyauta don aikin haɗin gwiwar ku na gaba.
