Iyini i-PCD saw blade?

Iyini i-PCD saw blade?

Ukubona ukuthi abantu abaningi abazi okuningi mayelana nencazelo ye-PCD saw blade, ngisho nokuhlanganisa odokotela abahlobene ne-PCD saw blade, incazelo enikezwe abanye babo ayinembile ngokwanele!

Igama eliphelele lesiShayina le-PCD saw blade liyisifinyezo se-“polycrystalline diamond saw blade”, lapho i-PCD isifinyezo se-PolyCrystalline Diamond (ehunyushwe ngesiShayina njengedayimane le-polycrystalline), ngakho i-PCD saw blade ibizwa nangokuthi idayimane. I-saw blade, kodwa ngenxa yokuthi iblade yesaha yedayimane yokusika itshe ivele ngaphambi kwesikhathi kakhulu kune-PCD saw blade, i-Huangrui Tool ikholelwa ukuthi kulula ukubangela ukudideka ukumane ubize i-PCD saw blade njengeblade yesaha yedayimane. Akuqondakali kahle ukuyibiza nge-PCD diamond saw blade.
Njengoba sonke sazi, idayimane liyinto enzima kunazo zonke ekhona emvelweni. Kuyikristalu eyodwa ye-octahedral eyakhiwe ngezinto zekhabhoni ezakhiwe endaweni ejulile yomhlaba ngaphansi kwesenzo somfutho ophezulu kanye nokushisa okuphezulu. Aqinile, wonke ama-electron e-valence ahilelekile ekwakhiweni kwezibopho ze-covalent, awekho ama-electron amahhala akhona, ngakho-ke ubulukhuni bedayimane bukhulu kakhulu, ubulukhuni bedayimane buphindwe izikhathi ezingu-4 kune-corundum kanye nezikhathi ezingu-8 kune-quartz!

Ubuchwepheshe besimanje sebukwazi kudala ukukhiqiza amakristalu okwenziwa edayimane elilodwa, futhi i-PCD isebenzisa i-cobalt nezinye izinsimbi njengezibophezelo ukwenza i-polycrystallize izimpushana zekristalu zokwenziwa zedayimane zibe ama-polycrystals edayimane ngaphansi kwezimo ezithile. Ukuqina kwale dayimane ye-polycrystalline (okungukuthi i-PCD) iwukuthi Nakuba ingekho nzima njengedayimane lekristalu elilodwa, ukuqina kusephezulu njenge-8000HV, okuyizikhathi ezingu-80~120 kune-carbide enosimende! Ngaphezu kwalokho, uchungechunge lwe-PCD lwe-thermal conductivity luyi-700W/MK, okuyizikhathi ezingu-2 ~ 9 kune-carbide enosimende, futhi ephakeme nakakhulu kune-PCBN nethusi. Ngakho-ke, usebenzisa impahla ye-PCB njengenhloko ye-saw blade, isivinini sokudlulisa ukushisa siyashesha kakhulu ngesikhathi sokusika. Ngaphezu kwalokho, i-coefficient yokunwetshwa okushisayo kwempahla ye-PCD iyingxenye eyodwa kwezinhlanu kuphela ze-carbide enosimende, futhi i-coefficient of friction iyingxenye eyodwa kwezintathu kuphela ye-carbide enosimende. Lezi zakhiwo zinquma ukuthi i-saw blade isebenzisa impahla ye-PCD njengoba ikhanda lokusika lilingana nomzimba we-saw blade. Ngaphansi kwezimo ezithile, hhayi kuphela impilo yesevisi ye-saw blade ethiyori okungenani izikhathi ezingu-30 ngaphezu kwe-carbide saw blade, kodwa futhi ikhwalithi yendawo yokusika ingcono. Ngaphezu kwalokho, ukuhlobana phakathi kwezinto ze-PCD nezinsimbi ezingenayo insimbi nezinto ezingezona ezensimbi kuncane. Lapho usika izinsimbi ezingenayo insimbi noma izinto ezingezona ezensimbi, ikhanda lokusika i-PCD ku-saw blade nalo mancane amathuba okuba libophe i-sawdust kunekhanda lokusika i-carbide. Okokugcina, kukhona enye inzuzo: Impahla ye-PCD ine-asidi eqinile kanye nokuzinza kokumelana ne-alkali, nakho okuzuzisa kakhulu ekuzinzeni kwekhwalithi yama-PCD saw blades.

I-PCD saw blade iwukusebenzisa i-carbide enosimende njenge-matrix yezinto ze-PCD ezingaphezu kwe-1mm, yakha inhlanganisela ngokusebenzisa i-sintering noma ezinye izinqubo zokucindezela, futhi ekugcineni ifakwe emzimbeni wepuleti lensimbi ye-alloy ye-saha blade, ukuze kushintshwe. impahla eqinile enekhanda lokusika i-PCD. Kuwumkhawulo wokusika we-saw blade, okuthuthukisa kakhulu impilo yesevisi ye-saw blade kanye nokuzinza kwekhwalithi yokusika.

Njengamanje, bayanda abasebenzisi be-saha blade abakhetha ukusebenzisa ama-PCD amasaha amadayimane anempilo yesevisi yesikhathi eside, asetshenziswa kakhulu embonini yokukhiqiza ifenisha, imboni yokucubungula insimbi engeyona ayoni okunzima ukuyisika, kanye nomnyango newindi le-aluminium alloy. abakhiqizi ukufaka esikhundleni imimese yokuqala ye-carbide. I-alloy saw blade yekhanda ayikwazi nje ukusika ngokuqhubekayo isikhathi eside, kodwa futhi ayidingi ukushintsha i-saw blade njalo. Ukuphila isikhathi eside, ngokuphelele, kunciphisa izindleko eziningi zokusika uma kuqhathaniswa nokusetshenziswa kwama-saw blades e-carbide!