Emkhakheni wokubhoboza ngokunemba kwe-PCB, isisekelo se-granite se-ZHHIMG® sesibe yindlela ekhethwayo esikhundleni sesisekelo sensimbi ngenxa yezinzuzo zayo ezine eziyinhloko:
1. Isakhiwo Esizinzile: Ukumelana Okumangalisayo Nokuguquguquka
Kukhethwa i-granite emnyama enobukhulu obungu-3100kg/m³. Amakristalu amaminerali angaphakathi aminyene futhi ukucindezeleka kwangaphakathi kwemvelo kuseduze no-zero. Uma kuqhathaniswa nenkinga yokushelela kwe-lattice yamafreyimu ensimbi ngaphansi kwemithwalo yesikhathi eside, amafreyimu e-granite angacindezela ukuguquguquka okungaphezu kuka-90%, okuqinisekisa ukuthi idivayisi yokubhoboza igcina ukunemba kokubeka okungu-±1μm isikhathi eside.
2. Ukusebenza kahle kokumuncwa kokudlidliza okuphezulu: Ukunemba kokubhoboza kuthuthukiswa izikhathi ezi-3
Ukungqubuzana kwamaminerali kwangaphakathi kwe-granite kwakha ukudambisa kwemvelo, okungamunca u-90% wamandla okudlidliza ngesikhathi senqubo yokubhoboza (izisekelo zensimbi zingamunca u-30% kuphela). Ukulinganisa kwangempela komkhiqizi we-PCB othile kukhombisa ukuthi ngemuva kokufaka isisekelo se-granite, ubulukhuni bodonga olunemigodi emincane engu-0.1mm behle busuka ku-Ra1.6μm kuya ku-Ra0.5μm, futhi impilo yenkonzo ye-drill bit yandiswa kabili.
Okwesithathu. Ukuqina kokushisa okuqinile: Ithonya lokwehluka kokushisa liyancishiswa
I-coefficient yokwanda kokushisa ingu-5.5×10⁻⁶/℃ kuphela (11.5×10⁻⁶/℃ yensimbi). Lapho izinga lokushisa lokusebenza eliqhubekayo lemishini likhuphuka ngo-10℃, ukuguquguquka kokushisa kwesisekelo segranite kungaphansi kuka-5μm, kuyilapho okwesisekelo sensimbi kungafinyelela ku-12μm, okugwema ngempumelelo ukususwa kwesikhundla sembobo okubangelwa ukwanda nokuncipha kokushisa.
Iv. Ukunemba Kokucubungula: Kuqinisekiswe yizindinganiso zezinga le-nanometer
Icutshungulwa ngomshini wokugaya we-CNC onezingqimba ezinhlanu, lapho ubucaba bulawulwa ngaphakathi kuka-±0.5μm/m, futhi isekela izikhala ze-T ezenziwe ngokwezifiso, imigodi enezintambo kanye nezinye izakhiwo eziyinkimbinkimbi. Icala elivela efektri ethile yemishini yokubhoboza libonisa ukuthi ukunemba kwendawo yokufaka imbobo yesisekelo somshini we-granite kufinyelela ku-±0.01mm, okuphakeme ngo-50% kunesisekelo somshini wensimbi, okunciphisa kakhulu isikhathi sokusebenza kwemishini.
Izinzuzo zezindleko kanye nezemvelo: Nakuba izindleko zokuqala ziphakeme ngo-15%, impilo yesevisi idlula iminyaka eyi-10 (iminyaka emi-5 kuphela yozimele bensimbi), futhi ayidingi ukulungiswa. Ukukhishwa kwekhabhoni ekumbiweni nasekucutshungulweni kwe-granite kuphansi ngo-40% kunalokho kokuncibilikisa insimbi, okuhambisana nomkhuba wokukhiqiza oluhlaza.
Isikhathi sokuthunyelwe: Juni-18-2025