Chidziwitso chazinthu zakuda za silicon ndikugwiritsa ntchito kwawo mu sandblasting
Silicon wakudandi silicon yogwira ntchito yokhala ndi mawonekedwe apadera apamwamba, omwe amatchulidwa chifukwa champhamvu yake yoyamwitsa kuwala komanso mawonekedwe apadera a micro-nano surface. M'zaka zaposachedwa, ndikuwongolera kulondola kwamankhwala apamwamba komanso zofunikira pakuchita bwino pakupanga zinthu zapamwamba, silicon yakuda yakhala ikugwiritsidwa ntchito kwambiri mu photovoltaics, optoelectronics, semiconductors, optical component kupanga ndi madera ena okhala ndi zinthu zabwino kwambiri zakuthupi ndi zamankhwala. Panthawi imodzimodziyo, silicon yakuda yalowa pang'onopang'ono m'makampani opanga mchenga ndipo yakhala mtundu watsopano wa zinthu zopangira mchenga ndi ntchito yabwino kwambiri.
Ⅰ. Makhalidwe oyambira a silicon yakuda
Silicon wakuda amapangidwa pochiza silicon pamwamba kudzera munjira zingapo zaukadaulo wokonzekera ma micro-nano (monga etching ion etching, etching yothandizidwa ndi zitsulo, etching yopangidwa ndi laser, ndi zina). Pamwamba pake pamakhala mawonekedwe owoneka bwino a cone kapena columnar, omwe amatha kuchepetsa kwambiri kuwunikira kwa kuwala. Kuwala kowoneka bwino kwa bandi yapafupi ndi infrared kumatha kukhala kuchepera 1%, kotero kumawoneka kwakuda kwakuda.
Silicon wakuda samangokhala ndi mawonekedwe owoneka bwino, komanso ali ndi zabwino za kuuma kwakukulu, kuyera kwambiri, kukana kuvala, komanso kukana dzimbiri. Mapangidwe ake a tinthu ndi amphamvu komanso oyenera maulendo angapo pansi pamikhalidwe yothamanga kwambiri. Imachita bwino pakuphulika kwa mchenga kuposa ma abrasives achikhalidwe monga white corundum, brown corundum, mchenga wa quartz, ndi zina.
Ⅱ. Ubwino wa silicon wakuda mu sandblasting
Sandblasting ndi njira yochizira pamwamba yomwe imagwiritsa ntchito kuthamanga kwa mchenga wothamanga kwambiri kuti ikhudze pamwamba kuti ikwaniritse kuyeretsa, kuchotsa wosanjikiza wa oxide, roughening kapena kukongoletsa. Monga abrasive yogwira ntchito kwambiri, silicon yakuda ili ndi zabwino zoonekeratu pamunda wa sandblasting:
1. Zabwino komanso zofananira pamwamba
Mapangidwe a geometric a tinthu tating'ono ta silicon ndi nthawi zonse ndipo morphology ndi yokhazikika. Pambuyo kupopera mbewu mankhwalawa, imatha kupanga yunifolomu komanso yokhazikika ya matte pamtunda wa workpiece. Mankhwalawa ndi oyenera makamaka pazinthu monga magalasi owoneka bwino, nyumba zamagalasi, zida zopangira ma aluminiyamu aloyi, ndi zina zambiri zomwe zimakhala ndi zofunika kwambiri pakusasinthasintha komanso mawonekedwe.
2. High kuuma ndi kukana zotsatira
Kuuma kwa Mohs kwa silicon yakuda ndi yokwera mpaka 8.5 kapena kupitirira apo, kusweka kwa mchenga pa mchenga ndi kochepa, ndipo moyo wautumiki ndi wautali. Poyerekeza ndi mchenga wamba wa quartz kapena mikanda yagalasi, kuphulika kwa mchenga wakuda wa silikoni ndikothandiza kwambiri ndipo kumakhala ndi mphamvu zowononga kwambiri, ndipo kumatha kumaliza kuyeretsa mozama ndi kukhwimitsa pakanthawi kochepa.
3. Kuyera kwakukulu ndi kuteteza chilengedwe
Kuyera kwa silicon yakuda nthawi zambiri kumakhala pamwamba pa 99%, ndipo ilibe zonyansa zowononga monga silicon yaulere kapena zitsulo zolemera. Lili ndi kuipitsidwa kwa fumbi lochepa mumsasa wa sandblasting ndipo ndiloyenera kugwiritsidwa ntchito m'mafakitale oyeretsa kwambiri monga zipangizo zamagetsi, zipangizo zamankhwala, ndi zopangira semiconductor. Panthawi imodzimodziyo, mawonekedwe ake a tinthu ndi okhazikika, fumbi la fumbi ndi laling'ono, ndipo ndilotetezeka kwa thanzi la ogwira ntchito.
4. Zogwiritsidwanso ntchito komanso zotsika mtengo
Chifukwa cha kuuma kwake kwakukulu komanso kukhazikika kwapangidwe, silicon yakuda imatha kukhalabe ndi kupopera mbewu mankhwalawa pambuyo pozungulira kangapo, kuchepetsa kwambiri kutaya kwa zinthu. Pazida zazikulu zopangira mchenga, silicon yakuda ikuwonetsa chuma chabwinoko.
Ⅲ. Malo ogwiritsira ntchito
Black silicon sandblasting abrasives akhala akugwiritsidwa ntchito kwambiri m'magawo awa:
Precision hardware pamwamba matte mankhwala: monga mkulu-mapeto foni yam'manja pakati chimango, notebook chipolopolo, wanzeru wotchi chipolopolo ndi zinthu zina zotayidwa aloyi;
Chithandizo cha chisanu chagalasi chowala: chomwe chimagwiritsidwa ntchito ngati mandala, fyuluta, matte opangira zenera ndi zokongoletsera;
Zamlengalenga ndi zida zankhondo: chotsani wosanjikiza wa oxide osasintha kukula kuti muwonjezere zomatira;
Electronic phukusi pamwamba etching: kusintha ma CD olondola ndi mawonekedwe adhesion;
Ceramic and composite material micro-sandblasting: mankhwala owumitsa pamwamba kuti apititse patsogolo kugwirizana.
Ⅳ. Chidule
Ndi chitukuko chosalekeza chaukadaulo wa sandblasting ndi makampani opanga zinthu zomwe zikuyenda bwino kwambiri komanso kutetezedwa kwachilengedwe kwapamwamba, zida zachikhalidwe zopangira mchenga sizingakwaniritsenso zofunikira zamachitidwe apamwamba. Silicon wakuda, monga chonyezimira chogwira ntchito chokhala ndi mphamvu zambiri, kutsika pang'ono, kuyera kwambiri komanso kuteteza chilengedwe, ikukhala chinthu chofunikira kwambiri pakukweza mchenga. Kaya mukupanga molondola, matte owoneka bwino, kapena pakupanga zida zamagetsi, zida zammlengalenga zakuthambo ndi magawo ena, silicon yakuda yawonetsa chiyembekezo chogwiritsa ntchito.