Carbide ti a ṣe simenti jẹ ti lile giga, carbide irin refractory (gẹgẹbi WC, TiC, TaC, NbC, ati bẹbẹ lọ) pẹlu awọn ohun elo irin (gẹgẹbi koluboti, nickel, ati bẹbẹ lọ) nipasẹ ilana irin lulú, lọwọlọwọ o jẹ agbara ti o ga julọ ni agbaye. alloy, pẹlu lile lile (89 ~ 93Hm), agbara giga, lile gbigbona ti o dara ati awọn abuda miiran.Nitorina, o ti wa ni o gbajumo ni lilo ninu awọn manufacture ti iwakiri lu die-die, molds ati irinṣẹ.Pẹlu ilọsiwaju ilọsiwaju ti imọ-ẹrọ gige ni itọsọna ti iyara giga ati pipe to gaju, líle, resistance resistance, lilọ deede ati didara gige eti ti awọn irinṣẹ carbide cemented ni a nilo lati ga ati giga julọ.Iwọn ọkà ti carbide cemented ti tun ni idagbasoke diẹdiẹ lati ibẹrẹ ti o ni irẹwẹsi-ọti-ara ati alabọde-ọkà-ọkà-ọkà-ọkà-daradara, ultra-fine-grained ati nanocrystal-grained.
Ni bayi, isokuso-grained carbide cemented ti wa ni o gbajumo ni lilo ninu Jiolojikali ati ni erupe ile irinṣẹ, stamping kú, epo liluho, ti o tobi oke òòlù fun isejade ti sintetiki Diamond, jet engine awọn ẹya ara ati awọn miiran oko;didara-grained ati ultra-fine-grained cemented carbide ni awọn abuda ti líle giga ati agbara giga, o jẹ lilo julọ fun iṣelọpọ awọn irinṣẹ carbide to lagbara, awọn ifibọ atọka ati awọn adaṣe bulọọgi.
Pẹlu isọdọtun ti awọn irugbin WC ni carbide cemented, awọn ohun-ini ẹrọ bii líle ati agbara pọ si, lakoko ti awọn ohun-ini bii lile lile fifọ dinku, ati iṣẹ lilọ bii resistance resistance tun yipada.
Meta ti o yatọ ọkà iwọn Diamond resini mnu lilọ wili ti wa ni lo lati gbe awọn lilọ igbeyewo labẹ awọn ipo lilọ fun meta cemented carbides pẹlu o yatọ si ọkà titobi: isokuso, itanran ati olekenka-itanran.Nipasẹ wiwọn ti agbara spindle, kẹkẹ lilọ ati pipadanu workpiece, ati aibikita dada dada ti grinder lakoko ilana lilọ, ipa ti iyipada iwọn ọkà ti WC ni carbide cemented lori iṣẹ lilọ ati ipa bii agbara lilọ, lilọ ratio, ati dada roughness ti wa ni atupale.
Nipasẹ idanwo naa, o le mọ pe labẹ ipo naa, awọn iṣiro lilọ ti ẹrọ mimu dada jẹ kanna, agbara lilọ ati agbara mimu ti o jẹun nipasẹ lilọ simenti carbide isokuso ti o tobi ju ti awọn ti o dara-dara ati ultra-fine. -grained, ati awọn lilọ agbara ti awọn dada grinder posi pẹlu awọn nyara ti ọkà iwọn.Awọn lilọ ipin ti olekenka-itanran cemented carbide posi pẹlu awọn nyara ti ọkà iwọn, o nfihan pe awọn yiya resistance ti yi ni irú ti cemented carbide dinku pẹlu awọn ilosoke ti ọkà iwọn, ati awọn dada roughness ti yi ni irú ti cemented carbide lẹhin itanran lilọ labẹ. awọn ipo lilọ kanna dinku pẹlu ilosoke ti iwọn ọkà.
Lilo kẹkẹ lilọ diamond jẹ ọna akọkọ fun iṣelọpọ ti awọn irinṣẹ carbide cemented, didasilẹ dada lilọ ni ipa pataki lori iṣẹ gige ati igbesi aye iṣẹ ti awọn irinṣẹ carbide cemented, ati awọn paramita lilọ jẹ awọn ifosiwewe akọkọ ti o ni ipa lori aibikita dada. simenti carbide
WC-Co simenti carbide apẹrẹ ti wa ni tunmọ si lilọ igbeyewo lori dada lilọ ẹrọ, ati awọn apẹrẹ je ohun olekenka-fine-grained carbide cemented sintered nipa HIP ọna ẹrọ.
Ni ijinle kanna, aibikita ti dada lilọ ti apẹrẹ naa pọ si pẹlu igbega iwọn patiku ti kẹkẹ lilọ.Ti a bawe pẹlu 150 # kẹkẹ wiwọn, iṣipopada dada ti iṣayẹwo ayẹwo yatọ kere si nigbati o ba n lọ pẹlu kẹkẹ 280 #, lakoko ti o wa ni oju-iwe ti o wa ni iyipada diẹ sii nigba lilọ pẹlu kẹkẹ W20.
Akoko ifiweranṣẹ: Jan-25-2024