Monday - Friday
8:00 a.m.. – 16:00 p.m.
210 40 15 001
info@chronick.gr
Chronick
Schisto Industrial Park
8:00 a.m.. – 16:00 p.m.
info@chronick.gr
Schisto Industrial Park
Non-electrolytic nickel coating is a process for nickel alloy deposition through aqueous solutions on a substrate without the use of an electric current. It differs, therefore, from electrolytic coating fed by an external continuous current source depositing nickel ions on a substrate. Electroless nickel properties are unique as they feature thickness uniformity, hardness, and resistance to abrasion while the purity of nickel alloys usually exceeds 99%.
Specific variations in properties are noted in abrasion and hardness resistance for low or high phosphorus deposits. A very significant property in all electroless nickel applications is the ability of producing deposits with high-thickness uniformity.
Electroless nickel hardness is a very significant factor in numerous applications.
Its standard Knoop microhardness testing values range between 500 and 720 compared to a mere 150 to 400 HK100.
Furthermore, the effects of thermal processing are greatly important. Hardness in nickel electrolytic deposition drops significantly in thermal processing due to re-crystallization and granulation buildup. However, electroless nickel thermal processing leads to increase in hardness up to levels comparable to chrome plating. For this reason electroless nickel is being increasingly used in chrome plating replacements in special applications requiring coating with hard and anti-friction resistant properties.
Resistance to electroless nickel abrasion is one of the main reasons for its extensive use in protective coatings. Thickness of deposition and lack of porosity are extremely important. In general such coatings present uniform thickness and low porosity.
We offer a wide range of hard chrome products and high productivity metal plating systems, through innovative and cost-saving solutions
We provide a wide range of hard chrome products and high-productivity metal plating systems, through innovative and cost-saving solutions.