
CS-912 Room Temperature Blackening Agent
Steel blackening at room temperature is a highly promoted energy-saving and advanced manufacturing technology, widely used in the surface oxidation treatment of machined parts and cast steel products.
I. Product Features:
1Room temperature processing, high quality, significant energy-saving effect.
2Flexible production batches, ready to meet production requirements at any time, with high work efficiency.
3Wide application range, equally effective for parts and workpieces of various steel grades.
4The working fluid is stable, operation is simple, no harmful gases are produced, and it protects the environment.
II. Main Technical Specifications:
1Our product is a blue-green transparent liquid, non-flammable and non-explosive, with no odor volatilization, and has a shelf life of two years.
2Specific Gravity:1.05±0.0l PHValue:2-2.5Blackening Amount:4-6M2。
3. Usage Instructions:
1Concentrate1Piece4A batch of water turns into work fluid, (cast iron parts should be added)6Bottle water) working liquidPHValue2~2.5
2、 Process Flow:
De-oiling—Water Washed—Rust activation—Water Washed—Turn black—Water Washed—Passivation sealing—Immersion and Dehydration Rust Inhibiting Oil
3The degreasing and rust-removing processes are crucial for the success of the blackening at room temperature. The degreasing and rust-removing of the workpiece must be thorough, and methods such as medium-temperature degreasing and ultrasonic degreasing can be employed.
4After the workpiece is inserted into the blackening groove, it should be shaken up and down several times; blackening time:2~5Minutes, until the black film on the workpiece surface is even.
5Blackening working fluidPHValue adjustment, during usePHValue greater than2.5At this time, the original liquid should be replenished to restore it to2~2.5Between, ifPHValue greater than3At that time, the working fluidPHThe value is hard to recover to2~2.5Between.
6The desiccant anti-rust oil tank should have porous supports to hold the workpieces to prevent them from sinking to the bottom, and the sediment at the bottom of the tank should be drained regularly.
Section 4: Important Notes:
1Rust-removing acid tanks and blackening tanks should be made from acid-resistant materials.
2Absolutely no acids, alkalis, or oil stains are allowed in the blackening tank to prevent damage and scrapping.
3Plastic drum packaging:20kg/Drum25 kg/bucket































