I-CBN Inserts vs. Carbide Insert: Ixabiso-Ifomula eSebenzayo kuMachining weMathiriyeli eNzima
I-CBN Inserts vs. Carbide Insert: Ixabiso-Ifomula eSebenzayo kuMachining weMathiriyeli eNzima
Kwimveliso yangoku, ukwenziwa komatshini wezinto ezilukhuni kuya kuxhaphaka ngakumbi, ngakumbi kumashishini afana neemoto, i-aerospace, kunye nezixhobo zokusebenza, apho ukuqina kwezixhobo zokusebenza kuhlala kudlula i-HRC50. Kwiimeko ezinjalo, ukhetho lwezixhobo luchaphazela ngokuthe ngqo imveliso, umgangatho womatshini, kunye neendleko zizonke. Phakathi kokhetho olukhoyo,I-CBN (iCubic Boron Nitride) ifakakwayeukufakwa kwe-carbidezizisombululo ezibini eziphambili.
Eli nqaku lithelekisa ezimbini kwimilinganiselo emine engundoqo—ukuqina, ukumelana nobushushu, ubomi besixhobo, kunye neendleko-ukucacisa imida yesicelo esifanelekileyo sokufakwa kwe-CBN. Ikwabonelela ngeendleko-inzuzo yokufunda kwimeko yokwenziwa kwecandelo lemoto.
I. Uthelekiso lweNtsebenzo
1. Ubulukhuni
Ukufakwa kwe-CBN: Okwesibini kuphela kwidayimane ebunzima, ilungele ukwenza iintsimbi eziqinileyo ezingaphezulu kwe-HRC50, isinyithi somgubo, kunye ne-alloys yobushushu obuphezulu.
Carbide Inserts: Ukuqina malunga ne-HRA90. Ukunxitywa kwesixhobo kukhawuleza kakhulu xa kusetyenzwa izixhobo ezingaphezulu kwe-HRC45.
2. Ukumelana nobushushu
Ukufakwa kwe-CBN: Ukumelana namaqondo okushisa ukuya kwi-1200 ° C, ilungele ukusika isantya esomileyo, ukunciphisa ukusetyenziswa kokupholisa.
Carbide Inserts: Ukumelana nobushushu ukuya kuthi ga kwi-800 ° C; utyekele kwi-deformation yeplastiki kunye nokunxiba kweflank ngesantya esiphezulu.
3. Ubomi besixhobo
Ukufakwa kwe-CBN: Inokuhlala ixesha eli-5-10 ixesha elide kune-carbide xa umatshini wokwenza izinto ezilukhuni, unikezela ukuzinza okukhulu.
Carbide Inserts: Ubomi besixhobo buhla kakhulu kwizinto eziqinileyo, ezifuna ukutshintshwa rhoqo kunye nokubangela ixesha lokuphumla.
4. Iindleko
Ukufakwa kwe-CBN: Iindleko eziphezulu zangaphambili kwifakelo nganye, kodwa ixabiso ngenxenye liyehla ngenxa yobomi obude.
Carbide Inserts: Iindleko zokuqala eziphantsi, kodwa ukutshintshwa rhoqo kuphakamisa iindleko zizonke.
II. Imida yesicelo se-CBN Insert
Ngokusekwe kwezi zalathisi, iimeko ezifanelekileyo zokufakwa kwe-CBN zinokushwankathelwa ngolu hlobo:
Ubunzima bezinto eziphathekayo: I-HRC50 nangaphezulu, njengentsimbi eqinile, i-metallurgy engumgubo, kunye ne-alloys yobushushu obuphezulu.
Ubungakanani bebhetshi yokuvelisa: Phakathi ukuya kwimiqulu emikhulu, apho inzuzo yobomi besixhobo ihlawula iindleko.
Iimfuno ezichanekileyo: Ukunyamezela kwe-Dimensional IT6 okanye okungcono, uburhabaxa bomhlaba uRa ≤ 0.8 μm.
Indlela yomatshini: Ukusika okukhawulezileyo okomileyo, ukugqiba isiqingatha, okanye ukugqiba.
Xa ubunzima bezinto eziphathekayo buphantsi (ngaphantsi kwe-HRC45), ubungakanani bebhetshi buncinci, okanye iimfuno ezichanekileyo zimodareyitha, ukufakwa kwe-carbide kuhlala kulukhetho olungabizi kakhulu.
III. Uphononongo lweCandelo lezeThutho
Ukuthatha ukugqiba unyango emva kobushushu bezixhobo zokuhambisa iimoto njengomzekelo:
Izinto eziphathekayo: 20CrMnTi, lukhuni ukuya kwi-HRC58-62.
Iimfuno zoomatshini: Ukuchaneka komgangatho we-IT6, uburhabaxa bomphezulu iRa0.8.
| Into | Faka i-CBN | Carbide Faka |
|---|---|---|
| Faka ixabiso | ~ 5× ngaphezulu kune-carbide | Isiseko |
| Ubomi besixhobo | 6× ubude | 1× (isiseko) |
| Ixesha lokuphumla lokutshintsha isixhobo | Phantsi | Phezulu |
| Ukusebenza kakuhle komatshini | Ukusika okomileyo ngesantya esiphezulu, + 20% ukusebenza kakuhle | Ukusika ngesantya esisezantsi, isisipholisi siyafuneka |
| Iindleko ngenxalenye | ~15% ngaphantsi | Isiseko |
Isiphumo:Kwi-high-hardness, i-batch enkulu, i-high-precision gear machining, nangona ukufakwa kwe-CBN kubiza kakhulu kwisiqwenga ngasinye, ubomi babo obude, utshintsho lwesixhobo esincinci, kunye nokusebenza okuphezulu kunciphisa iindleko zecandelo ngalinye ngelixa uqinisekisa umgangatho ohambelanayo kunye namazinga aphantsi okulahla.
IV. Isiphelo kunye neFomula yokuKhetha izixhobo
Kwizixhobo zokusebenza ezingaphezulu kwe-HRC50, ngokuchaneka okuphezulu kunye neemfuno zeebhetshi ezinkulu,Ukufakwa kwe-CBN kuzisa owona mlinganiselo ungcono weendleko zokusebenza, ukunciphisa kakhulu iindleko zokuvelisa ngokubanzi kunye nokunyusa ukusebenza kakuhle. Ngobunzima obuphantsi okanye imisebenzi yebhetshi encinci,ukufakwa kwe-carbide kuhlala kusebenza kwaye kunoqoqosho.
Ifomula yokuKhetha isixhobo esenziwe lula:
Ukuba (Ubunzima beMaterial ≥ HRC50) KUNYE (Ubungakanani beBatch ≥ Phakathi) KUNYE (Precision ≥ IT6)→ KhethaFaka i-CBN
Okunye→ KhethaCarbide Faka
Amashishini anokusebenzisa le fomyula njengereferensi yesigqibo esikhawulezayo, ngelixa ekwaqwalasela umthamo wesixhobo, isantya sokusika, kunye neemeko zokupholisa. Ukuseka imodeli epheleleyo yohlalutyo lweendleko-inzuzo yokukhethwa kwesixhobo kuya kwandisa ukusebenza kakuhle kwemveliso kunye nokukhuphisana.
