Litafole tsa boqapi ba granite li tiisa lithupelo tsa majoe tse nepahetseng - eseng joalo ka sebaka sa mosebetsi, empa e le sethala se lekantsoeng moo 'nete ea boholo bo kopanang le boitšoaro ba lintho tse bonahalang. Re bone mabenkele a lahleheloa ke 12% ea lihlahisoa tsa slab ho tloha tafoleng flex tlas'a CNC gantry loads; ba bang ba lahlela mathōko a 3-4 ka letsatsi hobane ho koala sekheo ho hlolehile ho 0.8 bar. Tsena ha se mamello ea khopolo-taba. Ke tahlehelo ea letsatsi le letsatsi e kentsoeng libukeng tsa mabenkele tse mokatong oa mabenkele ho pholletsa le Ohio, Ontario le Omsk.
Ke Hobane'ng ha Granite—Eseng Tšepe Kapa Konkreite—E Hlōla Bakeng sa ho Etsa Majoe
Matla a khatello ea granite a feta 200 MPa. Coefficient ea eona ea katoloso ea mocheso e lutse ho 0.000008/°C—ka tlase ho halofo ea aluminium, karolo ea bohlano ea tšepe e bonolo. Ha borokho ba CNC bo tsamaea ho 1.2 m/s holim'a bolelele ba limithara tse 3, esita le 0.02 mm ea li-shifi tsa mocheso oa mocheso li khaola li-angles ho feta mamello ea ± 0.15 °. Re ile ra lekanya sena sebakeng sa marang-rang: ho sisinyeha ha tikoloho ea 30 ° C ho bakile ho kheloha ha 0.07 mm tafoleng ea tšepe e botenya ba limilimithara tse 40-empa e le 0.013 mm feela setsing sa granite sa 120-mm. Phapang eo e arola ho pheta-pheta ho tloha ho rework.
Litafole tsa 'nete tsa maqiti a granite li sebelisa li-blocks tse betliloeng, tse fokotsang khatello ea maikutlo-eseng li-composite tsa polymer tse iketsang eka ke lejoe. Sebopeho sa lijo-thollo se tlameha ho ba se ts'oanang, ho se na li-micro-fractures tse tšelang sefofane se ka holimo. Re leka letlapa le leng le le leng ka ultrasonic pulse-echo pele re sebetsa: lebelo la molumo ka tlase ho 3,200 m/s le bontša li-voids tse ka hare. Ke li-slabs feela tse otlang 3,450–3,600 m/s tse etsang lethathamo la rona la ho qetela.
Vacuum integrity e bohlokoa ho feta matla a tala a ho hula. Tafole e lekantsoeng 95 kPa ha e bolele letho haeba geometry ea mocha e lutla ka 70 kPa. Protocol ea rona ea netefatso e lekanya sekhahla sa ho bola: khatello e tlameha ho tšoara ≥85 kPa bakeng sa metsotso ea 10 ka mor'a ho tiisa likou tsohle. Eo ke bonyane ba ho hanyetsa ho kuta ka mahlakoreng nakong ea ts'ebetso ea sesebelisoa sa daemane.
Likarolo tse 'ne tse sa Buisanoeng (E tšehelitsoe ke Boitsebiso ba Tšimo)
Ka mor'a ho hlahloba lisebelisoa tsa maiketsetso tse 47 ho pholletsa le Amerika Leboea le Europe, re ile ra hlahisa likarolo tse 'nè tse arolang litafole tse sebetsang le likoloto tse theko e boima:
Ho mamellana ha flatness ≤0.05 mm / m-e netefalitsoeng ka lifolete tsa optical le interferometry, eseng ho otloloha Keriti e kopantsoeng ea T-slot e nang le sekontiri sa 20-mm, e entsoeng ka mochine ho ± 0.02 mm ho nepahala ha boemo Modular vacuum libaka (bonyane 16 ka tafole ea 3 × 2 m), e 'ngoe le e' ngoe e na le li-valve tse ikemetseng tsa ho itšehla thajana Ho tsitsisa boima ba mocheso: bonyane botenya ba 120 mm bakeng sa litafole tse ka tlas'a 4 m bolelele; 150 mm bakeng sa lifomate tse kholoanyane Moreki e mong oa Wisconsin o ile a nkela tafole ea konkreite e matlafalitsoeng ka tšepe ea "premium" kamora likhoeli tse tšeletseng. Routa ea bona ea CNC e ile ea qala ho hoholeha bohareng ba sehiloeng. Khokahano ea laser e senotse 0.18 mm sag ka mose ho Y-axis-e bakoang ke ho monya mongobo ho ruruha substrate. Granite e felisitse phetoho eo. Kotulo ea bona ea beke ea pele e nyolohile ka 8.3%.
Botšepehi ba Lintho Tse Bonahalang Hase Boikhethelo—Boa Lekanyetsoa
Botou Haijun Metal Products Co., Ltd. ha e etse litafole tsa granite. Empa re fana ka lits'ebetso tsa tšepe tse bohlokoa tse li etsang hore li sebetse: li-T-slot tse kentsoeng ka mochini o nepahetseng, li-vacuum tse ngata tsa tšepe, le liforeimi tse tšehelitsoeng tsa CNC tse etselitsoeng molumo oa zero ho 120 Hz - maqhubu a matla a lisakha tsa majoe tse ngata.
Likarolo tsa rona li netefatsoa ka mekhahlelo e meraro: setifikeiti sa thepa e tala (litlaleho tsa tlhahlobo ea leloala bakeng sa SS304/316L), tlhahlobo ea CMM ea morao-rao (± 0.01 limilimithara libakeng tsohle tse fumanehang), le ho palama baesekele ea vacuum e sebetsang (lipotoloho tse 10,000 ka khatello e fapaneng ea li-bar 1.2). Re hana 4.7% ea li-billet tse kenang ho ipapisitse le tlhahlobo ea tensile feela - hobane matla a lihlahisoa a ka tlase ho 520 MPa a beha kotsi ea deformation tlas'a meroalo e tlamang.
Baetsi ba masela ba bang ba kenya litafole ka ho toba mabatong a konkreite. Khopolo e mpe. Re tlalehile phetisetso ea ho sisinyeha ha fatše e matlafatsang ho 18 Hz - e tsamaellanang le maqhubu a tlhaho a litsamaiso tse ngata tsa gantry. Khothaletso ea rona? Ho itšehla thajana ka li-pads tsa neoprene (Bothata ba Shore A 60) 'me u netefatse ho falla <0.005 mm peak-to-tlhōrō u sebelisa laser Doppler vibrometry.
Ho Khetha Lethathamo la Hao: Botsa Lipotso tsena tse hlano pele u saena
Pele o odara, botsa morekisi oa hau:
A na u ka fana ka limmapa tsa interferometric flatness-eseng feela "ka har'a lipolelo tse itseng"? Sekhahla sa 'nete sa ho bola ha vacuum sebakeng ka seng, se lekantsoeng ho latela ISO 10292? Na liteishene tsa T-slot CNC li entsoe ka seta e le 'ngoe-kapa li cheselitsoe le fatše? U netefatsa botsitso ba mocheso joang? (Botsa li-graph tsa delta-T khahlano le bokaholimo.) Ke letlapa lefe le lelelele ka ho fetesisa le sebetsitsoeng ho tlhophiso ee ea tafole hantle-mme mamello e fihletsoeng ke efe? Re bone mantsoe a qotsitsoeng a theoha ka 22% ha bareki ba batla data ea 'nete ho fapana le libukana. Morekisi e mong oa Europe o ile a fetola bafani ba thepa ka mor'a ho fumana "tafole" ea bona e "nepahetseng" e sebelisitseng likori tse bolokiloeng - tse bonahalang e le mekhoa ea lijo-thollo e sa lumellaneng tlas'a tlhahlobo ea LED ea 100-lux.
Litafole tse entsoeng ka granite ha li ntlafatse ho itšeha-li li nolofalletsa. Ba fetola khoutu ea CNC hore e be 'nete ea' mele. Haeba mosebetsi oa hau o latelang o hloka ±0.05 mm edge consistency ho 3 cm quartzite, qala ka sethala se emeng ha ntho e 'ngoe le e 'ngoe e ntse e tsamaea. Sethala seo se qala ka granite, flatness e netefalitsoeng, le vacuum integrity eo u ka e lekanyang - u sa nahane. Bakeng sa litokomane tsa tekheniki mabapi le lisebelisoa tsa ho kenya tse tsamaisanang le li-interface tsa vacuum, etela https://www.haijunmetals.com.
