Isixhobo sokusika i-CBNszezohlobo lwezixhobo zokusika ezilukhuni, ezenziwe kusetyenziswa ubushushu obuphezulu kunye noxinzelelo oluphezulu lwetekhnoloji usebenzisa i-CBN powder njengento eluhlaza kunye nenani elincinci le-binder.Ngenxa yobunzima obuphezulu bezixhobo zokusika ze-CBN, ifaneleke kakhulu ukusetyenzwa kwezixhobo ezinobunzima obukhulu kune-HRC50 kunye nokuxhathisa okuqinileyo.
Yintoni impahla ye-CBN?
I-CBN (i-cubic boron nitride) sisixhobo esinzima kakhulu esiphuhliswe emva kwedayimani eyenziweyo, eguqulwayo ukusuka kwi-hexagonal boron nitride (igraphite emhlophe) phantsi kobushushu obuphezulu kunye noxinzelelo.I-CBN yi-boride engeyiyo isinyithi, kwaye ukuqina kwayo kukwesibini kwidayimane, iphezulu kakhulu kunentsimbi enesantya esiphezulu kunye ne-alloy eqinile.Ke ngoko, emva kokwenziwa kwezixhobo, i-CBN ifaneleke ngakumbi ukwenza izixhobo ezimileyo kunye nezixhobo zokusika i-carbide.
Ziziphi izixhoboUkusika i-CBN izixhoboilungele ukuqhubekekiswa?
Izixhobo zokusika ze-CBN zingasetyenziselwa ukusika izinto ezifana nentsimbi eqinile (intsimbi ethwele, intsimbi yokubumba, njl.), intsimbi etyhidiweyo (isinyithi esimpunga, i-ductile iron, i-chromium ephezulu yentsimbi, i-alloy wear-resistant iron cast, njl.), high-speed steel, i-alloy eqinile, i-alloy yobushushu obuphezulu, njl.
Kufuneka kuqatshelwe ukuba ukuba izinto zokucubungula ziyintsimbi ethambileyo okanye i-non-metallic, izixhobo zokusika ze-CBN azifanelekanga ukulungiswa.Izixhobo zokusika ze-CBN zinconywa kuphela xa ubunzima bezinto bufikelela kwinqanaba elithile (HRC> 50).
EqhelekileyoFaka i-CBN iifom zesakhiwo
Ngokuqhelekileyo, izixhobo zokusika ezisetyenziswa ngokuqhelekileyo ekuguquleni umatshini ikakhulu zineefom zesakhiwo zilandelayo: i-CBN edibeneyo yokufaka kunye nokufakwa kwe-CBN edibeneyo, phakathi kwayo i-welded CBN ifaka i-welded edibeneyo edibeneyo kunye ne-composite welded insert.
(1) Ukufakwa kwe-CBN edibeneyo.I-blade yonke i-sintered ukusuka kwi-CBN i-powder encinci, enemida yokusika emininzi.Zombini iingcebiso zeblade ezingaphezulu nezisezantsi zingasetyenziselwa ukusika, okukhokelela ekusetyenzisweni okuphezulu kweblade engenanto.Kwaye i-blade inamandla okugoba aphezulu kwaye inokumelana nokusika kwesantya esiphezulu kunye nobunzulu obukhulu bokusika, ifanelekile ngokuqhubekayo, i-intermittent ebuthathaka, kunye neendawo ezinamandla zokusika.Inokusebenza okubanzi kwaye inokuhlangabezana neemfuno zokurhabaxa, ukuchaneka kwesiqingatha, kunye nomatshini ochanekileyo.
(2) Ukufakwa kwe-CBN edibeneyo edibeneyo.Ifomu yokufakwa kwe-welding yomzimba wonke inamandla aphezulu we-welding kunye nokubeka indawo ephakathi komngxuma, enokuthi ithathe indawo ngokuthe ngqo yokufakela ukufakwa.Ifanelekile kwiimeko zomatshini kunye nobunzulu be-<2mm, i-intermittent ebuthathaka kunye neendawo eziqhubekayo zomatshini, ukuhlangabezana neemfuno zokuchaneka kwe-semi kunye nokuchaneka ngokuchanekileyo.
(3) I-Composite edibeneyo ifake i-CBN.Emva kokusikwa, iibhloko ezincinci ze-CBN ezihlanganisiweyo zidityaniswa kwi-substrate eqinile yealloy ukwenza iiblade ezahlukeneyo ezijikayo kunye nezikruqulayo.Ngokubanzi, mnye kuphela umphetho okhoyo, ikakhulu osetyenziselwa iimeko zokuchaneka komatshini.
Okwangoku, izixhobo zokusika ze-CBN zisetyenziswa kakhulu ekhaya nakwamanye amazwe, ngakumbi ukusika izinto ezinzima kumatshini kumashishini afana nokuvelisa iimoto (iinjini, ii-crankshafts, ii-brake discs, iidramu zokuqhawula, njl. iimpompo ze-slurry, njl.), ukuthwala imboni yezixhobo (i-hub bearings, i-slewing bearings, iibheringi zamandla omoya, iigiya, njl.)
Ixesha lokuposa: May-29-2023