1. Hardness Ntau Yam
Aplly dog dig li -} plated rods: tus nqi hv (vickers tawv me me los ntawm cov yam ntxwv xws li cov plating da dej thiab ntom ntom ntom ntom.
Lub zog tawv nqaij chrome (tawv chrome plating plating): lub hardness yog ho ua rau 800 hv (vickwell hardness), ua rau lawv haum rau cov ntawv thov siab.
2. Qhov xwm txheej cuam tshuam rau hardness
Txheej thickness: tawv chrome plating feem ntau ntau dua los yog sib npaug rau 20μm tuab, thaum zoo dog dig chrome plating tsuas yog 0.25-0.5h.5μm. Nce tuab nce hardness.
Txheej txheem tsis:
Tsawg chromic anhydride concenation cov txiaj ntsig hauv kev nyuaj siab ntau dua, tab sis tsis muaj zog da dej ruaj khov.
Qhov nyuaj tshaj plaws yog ua tiav thaum sib piv ntawm sulfuric acid mus chromic anhydride yog 100: 1. Ntau dhau sulfuric acid tuaj yeem cuam tshuam strawbness.
Ceev ntom ntom tam sim no nce hardness, tab sis nws stabilizes tom qab dhau ib qho pib.
3. Kev sib piv nrog lwm cov ntaub ntawv
Chrome -} plated rods vs. nyuaj chrome pas nrig:
Chrome -} plated pas nrig yog ua los ntawm cov hlau nrog lub chrome {} plated nto thiab muaj qis tawv (60-80 hrc).
Lub zog tawv chrome yog ua los ntawm cov chromium - based alloy thiab muaj lub hardness ntau dua (90-100 hrc) thiab zoo dua hnav tsis kam.
Chrome plating vs. Cov Chrome nyuaj: Siv cov chrome ua kom zoo nkauj (thaum muaj kev ua kom zoo nkauj chrome hais txog (xeb tsis kam thiab ci).
4. Daim Ntawv Thov Kev Sau Npe
Cov Hardness Hardness Yuav Tsum: Rau cov ntawv thov xws li cov pas nrig Hydraulic, pwm, xaiv lub zog chrome (ntau dua los yog sib npaug rau 800 hv).
Kev Coj Ruaj Ntsig Kuj Xav Tau: Rau Cov Khoom Siv Tsav Tsheb thiab Qhia Cov Qauv, HV} Poj Niam Plated Cov Qauv. 5. Kev Ntsuas Cov Qauv
Kev sim ua kom haum nrog cov qauv xws li GB / T 9790 (vickers tawv) lossis ASTM B456 (cov lus qhia tshwj xeeb rau cov khoom siv tawv chrome) kom ntseeg tau tias cov khoom siv tawv.
