Foreword
CE-198 type multi rare soil chrome-plated additive is a kind of new type additive made through multi rare soil’s optimized combination according to the principle that rare soil contains electro-chemical matter that plays a part in electrocatalysis and changes the properties of solution and galvanized layer. Compared with ordinary high-chrome plating technology, CE-198 additive is low in the consistence of chromic anhydride, strong in deep-plating capacity, high in current efficiency and low in plating temperature. Thus, it is not only suitable for low-consumkption decorative chrome in low temperature, but also for high-efficiency hard chrome in middle temperature. Rare-soil chrome-plating has substituted ordinary chrome-plating in recent years.

Technology and working condition

Explanation:
1. Chromic anhydride has a wide range of changing consistence. It may be regulated according the shape of workpiece. If it is simple, it may use 80-120g/L; if it is ordinary, it may use 100-120g/L; if it is complex, it may use 120-140 L.
2. Consistence ratio of chromic anhydride and sulfuric acid is 100：0.6.
3. Chromic content in bath can not be more than 2.5g/L, the smaller, the better. Although fresh bath can also get eligible electroplated layer without chromic, it is supposed to add 0.3ml/L alcohol in fresh bath so as to keep appearance and quality consistent.
4. Anode area ratio SK：SA is 1：2.5-3. To adopt larger anode area is important to guarantee deep-plating capacity; besides, it can also restrict chromic consistence increasing during the course of electroplating.
5. This technology has certain tolerance to copper and iron impurities, a little worse than original high-chrome plating, so it has to strengthen bath maintenance and management to prevent impurity from accumulating too much. If copper and iron impurities exceed regulated value, it may be changed out with strong acid cation resin directly without diluting.
6. When adding CE-198 additive into fresh bath, it is supposed to be dissolved with warm water and mixed entirely before plating. This additive has good dissolvability.
7. As additive doesn’t join in reaction in solution, its consumption is very little (May be brought out when workpiece comes out.). When replenish Cro3 in the course of ordinary electroplating, the addition of CE-198 additive is about 1/80-1/100 (1/40-1/50 for hard chrome) of Cro3; it is added together with Cro3 in this ratio. So it is much convenient to maintain.

Compared with original high chromic- anhydride plating technology:

1. deep-plating capacity is improved one time.
2. dispersing capacity is improved 30%-60%.
3. current efficiency is improved 60%-110%.
4. anticorrosion for medium salt-fog test is improved 2-3 level.
5. HV is improved 30%-60%.
6. wear resistance of chrome-plated layer is improved 2-3times.
7. chromic acid is saved 60%-85%.
8. electric energy is saved 60%-85%; service life of rectifier is prolonged one time.
9. consistence of waste chrome-plated water is only 10%-20% of high chrome-plating.
10. chrome acid fog is reduced remarkably; F-53 inhibitor is saved 80%.
11. there isn’t corrosion in low-current area; accumulating speed of general heavy metal impurity is 10%-20% slower than high chrome.
12. there isn’t radioactive pollution.

Summarization
Adopting CE-198 additive, not only improves bath properties and electroplated layer’s quality, but also reduces pollution, improves working environment. Seen from cost, it also has remarkable economic benefit.

Package: 1000g plastic bag