Cov kev kho saum npoo ntawm12.9-Qib Hexagonal Screws(Hexaging ntso ntswj) rau CNC cov tuam txhab yuav tsum daws kev tiv thaiv corrosion, lubrical, thiab cov tsos uas xav tau, lubrical cov khoom siv ntawm kev kub lub zog bolts. Hauv qab no yog cov kev xaiv ua haujlwm hauv cov dej thiab cov ntsiab lus tseem ceeb rau ntau thiab tsawg m2.5 rau m8.
1. Oxidation (Blackening / Bluing)
Siv cov lus qhia tshwj xeeb: Txhua qhov ntau thiab tsawg (m2.5-M8)
Cov txheej txheem txheej txheem: Kev ntsuas kub lossis tshuaj oxidation ua rau cov yeeb yaj kiab dense fereso₄.
Qhov Zoo: Tus nqi qis, tsis muaj qhov seem cuam tshuam (zaj duab xis tuab 1-33m), tsis muaj kev pheej hmoo ntawm hydrogen embrittlement.
Qhov tsis zoo: Cov tshuaj tiv thaiv corrosion (nruab nrab ntawm ntsev tsuag<24h), requiring use with anti-rust oil.
Daim Ntawv Thov: Sab Hauv Screws rau Cov Qauv CNC Toolholders hauv qhov chaw tsis muaj ib puag ncig.
2. Galvanizing (Electroplating Zinc / Zinc-Nickel Alloy)
Hluav Taws Xob Hluav Taws Xob
Film Thickness: M2.5-M3 (3-5μm), M4-M8 (5-8μm).
Cov tshuaj tsuag ntsev ua kom tsis kam: 72-96 teev (dawb zinc), xim passivation tau.
Cov kev pheej hmoo: Yuav tsum muaj kev kho kom zoo rau lub cev (200℃x 4 teev, yuav tsum tau ua rau chav kawm 12.9).
Zinc-Nickel Alloy (Pom zoo)
Corrosion Kuj: ntsev txau tiv thaiv 500 teev lossis ntau dua, ntau haum rau kev muaj av noo ib puag ncig.
Hardness: ntau dua los yog sib npaug rau 500 hv, hnav zoo dua li galvanizing.
3. Dacromet
Film Thickness: 6-12 μm (dav hloov mus rau M2.5-M8).
Cov txiaj ntsig zoo: Tsis muaj hydrogen embrittlement, kub tsis kam (300 degree), ntsev txau tiv thaiv ntawm 1000 teev lossis ntau dua.
Cov kev txwv: Qhov tsos mob, tsis ncaj ncees, tus nqi siab.
Cov Kev Siv: Cov cuab yeej Shanman Screws rau cov tub rog lossis tshuaj ib puag ncig.
Hardness: ntau dua los yog sib npaug rau 500 hv, hnav zoo dua li galvanizing.
3. Dacromet
Film Thickness: 6-12 μm (dav hloov mus rau M2.5-M8).
Cov txiaj ntsig zoo: Tsis muaj hydrogen embrittlement, kub tsis kam (300 degree), ntsev txau tiv thaiv ntawm 1000 teev lossis ntau dua.
Cov kev txwv: Qhov tsos mob, tsis ncaj ncees, tus nqi siab.
Cov Kev Siv: Cov cuab yeej Shanman Screws rau cov tub rog lossis tshuaj ib puag ncig.
4. Phosphating
Hom: manganese / zinc phosphating (zaj duab xis tuab 5-15 μm).
Nta: txhim kho lubricity (sib txhuam coefficient cia 30%), haum rau cov cuab yeej shanks uas xav tau nquag disassembly thiab kev sib dhos.
Corrosion tiv thaiv: ntsev tsuag rau 24-72 teev, yuav tsum siv nrog roj.
5. Lwm txoj kev kho siab kawg
QPQ (Nitriding + Oxidation): Lub Hardness Hardness 1000hv +, Ntsev Tshuaj Tsuag rau 300 teev, Tsim nyog rau kev hnav zoo ntawm M6-M8.
Lub zog chrome plating plating: Zoo heev hnav tsis kam tiv (zaj duab xis tuab 10-20μm), tab sis tus nqi siab thiab ntau qhov kev txwv ib puag ncig.
Cov Lus Taw Qhia Xaiv
Cov lus qhia
Pom zoo kev kho mob
Cov kev txiav txim siab tseem ceeb
M2.5-M3: Zinc-Nickel Alloy / Oxidation: Tsis txhob hydrogen embrittlement; Nthuav dav plating rau me me, corrosion-nquag seem.
M4-M6: DACROMET / PHOSHPHATING: Cov nyiaj sib txuam tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev sib dhos ua ke.
M8: QPQ / Zinc-Nickel Alloy: High-load cov neeg yuav tsum tau ua kom zoo dua hnav tsis kam.
Cov kev ceev faj
Hydrogen embrittlement tswj: 12.9-qibscrewsYuav tsum muaj lub cev qhuav dej tom qab electroplating (cov txheej txheem galvanizing yuav tsum tau tswj nruj nruj).
Haum rau kev thev taus: rau M2.5-M3.5-M3, nyias nyias yog pom zoo kom tsis txhob muaj kev cuam tshuam zoo; phosphating / oxidation yog qhov xav tau.
Yuav tsum muaj ib puag ncig ib puag ncig: cov khoom xa tawm yuav tsum ua raws RoHS / ncav cuag.
Xaiv cov kev kho mob saum npoo raws qhov tseeb kev ua haujlwm (av noo, thauj khoom, thiab ntau zaus ntawm kev sib dhos thiab kev sib dhos). Rau cov khoom siv tau zoo, zinc-nickel alloy lossis dacromet tau pom zoo.
