Chemblock
Chemblock
Chemblock range of products is specially formulated and developed for specific applications for copper and its alloys. Chemblock physically is in block form.
characteristics and features
Chemblock range of products is specially formulated and developed for specific applications for copper and its alloys. Chemblock physically is in block form.
Typical Properties
PRODUCT
COLOUR
USAGE
CHEMBLOCK 21
Black
For the melting of Tin Bronzes (Gun Metal)
CHEMBLOCK 4
Off White
For the melting of Phosphor Bronze
CHEMBLOCK1
Pink
For melting of Tin Brass
Method Of Using
When using in crucible furnaces, the selected grade and quantity usually 1 kg per 100 kg charge is placed at the bottom of the empty crucible which is preheated to redness. The slag cover is not disturbed till melt is ready.
Advantages
I. For melting under oxidizing condition
- A controlled, convenient method of ensuring oxidizing conditions.
- Removes dissolved hydrogen from melts and prevents pick up from furnace atmosphere.
- Prevents steam reaction and resulting porosity in castings.
- Cleanse melt of copper and its alloys removing non-metallic impurities.
- The material reduces metal losses in the dross.
II. For melting under reducing / neutral condition
- Minimizes oxidation losses of alloy components like zinc in brass, Brazing metal, gilding metals.
- Produces a fluid slag and reducing condition for melting of high conductivity copper.
- Much higher recovery of metal when melting Turning / Borings in a rotary or vibratory furnace.
Storage
Keep in a dry place and away from moisture.
Shelf Life
One year from the date of manufacture.
Packing
50 kg in the alkaline bag.