hat
Chromium nan bikromat sodyòm ka fòme yon ki estab pasivan fim nan lè a anpeche korozyon nan objè tankou asid ak alkali. Li te gen yon kapasite reflechi fò nan limyè. Chromium kouch gen ajan ak ble ekla tankou sifas glas, sa ki ka jwe yon wòl nan decoration dekore. Anplis, fim oksid kontra enfòmèl ant yo ka fòme nan tanperati ki wo, se konsa ke pwodwi asye ka travay anba chalè wouj la ogmante rezistans nan chalè nan metal. Chromium kouch gen dite segondè, epi yo ka itilize amelyore rezistans nan mete nan pati mekanik.
eng
Chromium in bichromate sodium can form a stable passivating film in the air to prevent corrosion of objects such as acid and alkali. It has a strong reflection ability to light. Chromium coating has silver and blue luster like mirror surface, which can play a role in beautifying decoration. Moreover, compact oxide film can be formed at high temperature, so that steel products can work under the red heat to increase the heat resistance of metal. Chromium coating has high hardness and can be used to improve the wear resistance of mechanical parts.