Ukuguqula ukusebenza kakuhle kokusika: I-Polycrystalline Cubic Boron Nitride (PCBN)

Iipleyiti ze-polycrystalline cubic boron nitride (PCBN) ezidityanisiweyo zizixhobo zokusika ezisebenza kakuhle kakhulu ezaziwa ngokuba lukhuni kwazo olubalaseleyo, ukumelana nokuguguleka okugqwesileyo, kunye nokuqhuba kakuhle kobushushu. Ezi mpawu zenza i-PCBN ifaneleke kakhulu ekuchwethezeni ngokuchanekileyo izinto ezinzima ezifana neeseramikhi, iintsimbi eziqinileyo, kunye nee-alloys ezinzima. Xa kuthelekiswa nezixhobo zokusika zemveli, Izixhobo zePcbn zibonelela ngobuchule bokusika obuphezulu, ziphucula kakhulu imveliso kwaye zibe yimpahla ebalulekileyo kwishishini lokuvelisa.

Ipleyiti yePcbn CompositeZakhiwe nge-substrate eqinileyo ye-alloy, efakwe i-cubic boron nitride (CBN) micro-powder, kwaye itshiswe phantsi kobushushu obuphezulu kunye noxinzelelo. I-CBN inobunzima obulandelayo emva kwedayimani, inozinzo lobushushu kunye nokumelana neekhemikhali okugqitha kakhulu okwenziwa yidayimani, nto leyo eyenza ukuba ibe ngumncintisani omkhulu ekusetyenzisweni kweentsimbi ezisekwe kwisinyithi. Oku kubeka i-PCBN njengokhetho olubalulekileyo kwizixhobo ezirhabaxa kunye nezokusika.

Uyilo olulodwa lwee-PCBN composite plates aluboneleli nje kuphela ngobunzima obungaqhelekanga kunye nokuzinza kobushushu kodwa lukwaphucula ukuqina ngokusebenzisa i-substrate ye-alloy eqinileyo, okwenza kube lula ukuqhubeka nokuqhubekeka. Uluhlu lwezicelo zabo lukhulu, lugubungela oomatshini be-CNC abaphambili, izixhobo zoomatshini ezizenzekelayo ngokupheleleyo, kunye nemigca ezenzekelayo ekhawulezayo. I-PCBN isetyenziswa kakhulu ekuchwethezeni intsimbi eqinileyo, isinyithi esibandayo, iintsimbi zezixhobo, kunye neendawo eziqinisiweyo eziqinisiweyo, ngokuthe ngcembe zithatha indawo yee-alloys zemveli ezinzima kunye nezixhobo ze-ceramic kwaye zibonakala njengeyona ndlela iphambili kushishino lwezixhobo zokusika.

1. Imeko yoPhuhliso lwangoku lweePlati zePCBN Composite

Uphuhliso lwezixhobo ze-PCBN luphucuke ngakumbi kwiindawo ezifana neYurophu, uMntla Melika, neJapan, apho kuye kwasekwa inkqubo yobugcisa evuthiweyo. Ezi mveliso zibonakaliswa ngokwahlukahluka, ukulungiswa komgangatho, kunye nokusebenza okufanayo. Iiplate ze-PCBN ezidityanisiweyo ezivela phesheya zihlala zizinzile kwiidayamitha ezingaphezulu kwe-50mm, kwaye i-Element Six inikezela ngeemveliso ezinobubanzi obuyi-57mm kunye ne-101.6mm yee-CBN sintered bodies ezicocekileyo (AMB90), zigcina ukuguguleka kunye nokuphambuka kokusebenza kobushushu ngaphakathi kwe-30% ukuze kubekho ukuhambelana okugqwesileyo. I-DI kunye ne-Sumitomo zibonelela ngeenkcukacha ze-50.8mm, 58mm, kunye ne-64mm, ngokwahlukeneyo.

I-Boreas iphumelele ukuphuhlisa iipleyiti ze-PCBN ezidityanisiweyo ezinobubanzi obuyi-64mm emva kweminyaka yophando, ezinobukhulu bee-particles ukusuka kwi-2μm ukuya kwi-15μm. Sinikezela ngeendidi ezingaphezu kwama-20 ezahlukeneyo zezisombululo ezenzelwe wena ukuhlangabezana neemfuno ezithile zoomatshini. Ngokukhetha iipleyiti ze-PCBN ezidityanisiweyo ze-Boreas, uya kufumana uphuculo olukhulu ekusebenzeni kakuhle kokusika kunye nomgangatho!

 I-China PCBN (iPolycrystalline Cubic Boron Nitride) Factory, Umvelisi | Boreas (boreasdia.com)