Technology of electrochemical deposition of the two-layer composite coating of the nickel-boron-diamond, iron for faceting wheels

Purpose
Production of cutting discs of type 6A2, Sp. ALN 36-142.00.000 for polishing and grinding of uncut diamonds into cut diamonds with composite coating of nickel-boron-diamond, iron

Characteristics
The technology is based on electrochemical deposition of a composite coating of nickel-boro-diamond, iron, characterized by high hardness, wear resistance and corrosion resistance


Technical characteristics of the electrolyte solution and the coating Ni-B:

Rate of coating deposition, mkm/hour	2550
Deposition temperature, °С	3040
The boron-containing compound used has high chemical resistance and efficiency coefficient
Microhardness of the coating, Gpa	610
After heat treatment (300 °С), Gpa	1013

Advantages

• resistance of diamond cutting discs coated with nickel-boron-diamond increases 1.3 times
• grinding intensity increases by 30-40%
• man-hours and materials saving is 20-30%, saving of electricity is 8-12%
• technology of nickel-boron alloy deposition is material and resource saving

Application
Jewelry industry

Form of cooperation

• Sale of the finished product (solution)
• Sale of cutting discs
• Sale of diamond cutting discs production technology