Application of Titanium Anode in Electroplating Industry
Plating definition:
Is the use of electrolysis principle in some metal surface plating a thin layer of other metals or alloys, under normal circumstances, the coating metal anode, is oxidized into cations into the plating solution: to be plated metal cathode, plating metal cations In the metal surface reduction coating.Generally needs plating solution containing plating solution to do to maintain the concentration of metal cations coating unchanged.
The purpose of plating:
Is coated with a metal coating on the substrate to change the surface properties or size of the substrate, plating can increase the corrosion resistance of the metal (metal plating more corrosion-resistant metal) to increase hardness, prevent wear, improve conductivity, lubricity, resistance Heat, and surface appearance.
Chrome:
The types of chrome layers are:
1. Protective Decorative chrome, to prevent corrosion of the base metal, and has a bright decorative appearance, widely used in automotive bicycle sewing machines, watches and clocks, and other daily hardware components:
2. Hard chrome (wear-resistant chrome), hard chrome plated mechanical parts can improve wear resistance extends the service life:
3 milky chrome plating, milky chrome layer pore is small, good corrosion resistance, and slightly lower hard chrome, milky chrome plating plus bright wear-resistant chrome plating, both to improve the corrosion resistance and wear resistance purposes, said For the protection of wear-resistant double-chrome plating, in the ship parts and gun bore was widely used.
4 loose hole chrome layers.
5. Black chrome plating and so on.
Anode materials used in chrome plating are DSA Titanium Anode (PGA) Titanium Phenyl Carbonate (PbS) Lead Titanate Lead Oxide, these materials are capable of oxidizing chromium ions to chromic acid ions while using insoluble titanium anodes , The anodic oxidation potential is about 450mv lower than that of the lead electrode, saving the energy consumption, meanwhile, the titanium anode can be operated with high current density and long service life, the chrome plating is firmly combined with the substrate, and the surface is bright and clean.
Rhodium-plated:
Rhodium plated layer was silver white. Most of the current rhodium plating process using rhodium sulfate bath, used primarily in the jewelry industry for sliding rotary contacts printed circuit switch communications equipment and high-frequency switching components. Containing selenium plating Rhodium and Magnesium Silylate containing rhodium plating solution, the general industry requirements rhodium coating thickness of 0.1-0.2um rhodium plating process, the use of platinum-based and DSA coated titanium anode.
Palladium plating:
Palladium plating was silver white, the 20th century, 70s, in the electronics industry, palladium instead of gold plating process has been rapid development.Palladium plating solution is the most commonly used ammonia system, the presence of palladium in the form of ammoniacal palladium general palladium Plating easier to obtain, but often prone to cracking, because in the electro-deposition of palladium potential range, hydrogen is often the phenomenon of common electrowinning, palladium plating hydrogen absorption, hydrogen will be slowly released during placement, Cracks Palladium-plated anodes Pure platinum-based platinum-based DSA titanium anodes can be used.
Gold plating:
Currently used gold-plated solution with cyanide gold plating solution and non-cyanide gold plating . Gold-plated anode Original pure gold platinum-based platinum, platinum-based platinum plating electrode expensive, while DSA titanium anode longer life than titanium Anode, truly affordable.
Plating definition:
Is the use of electrolysis principle in some metal surface plating a thin layer of other metals or alloys, under normal circumstances, the coating metal anode, is oxidized into cations into the plating solution: to be plated metal cathode, plating metal cations In the metal surface reduction coating.Generally needs plating solution containing plating solution to do to maintain the concentration of metal cations coating unchanged.
The purpose of plating:
Is coated with a metal coating on the substrate to change the surface properties or size of the substrate, plating can increase the corrosion resistance of the metal (metal plating more corrosion-resistant metal) to increase hardness, prevent wear, improve conductivity, lubricity, resistance Heat, and surface appearance.
Chrome:
The types of chrome layers are:
1. Protective Decorative chrome, to prevent corrosion of the base metal, and has a bright decorative appearance, widely used in automotive bicycle sewing machines, watches and clocks, and other daily hardware components:
2. Hard chrome (wear-resistant chrome), hard chrome plated mechanical parts can improve wear resistance extends the service life:
3 milky chrome plating, milky chrome layer pore is small, good corrosion resistance, and slightly lower hard chrome, milky chrome plating plus bright wear-resistant chrome plating, both to improve the corrosion resistance and wear resistance purposes, said For the protection of wear-resistant double-chrome plating, in the ship parts and gun bore was widely used.
4 loose hole chrome layers.
5. Black chrome plating and so on.
Anode materials used in chrome plating are DSA Titanium Anode (PGA) Titanium Phenyl Carbonate (PbS) Lead Titanate Lead Oxide, these materials are capable of oxidizing chromium ions to chromic acid ions while using insoluble titanium anodes , The anodic oxidation potential is about 450mv lower than that of the lead electrode, saving the energy consumption, meanwhile, the titanium anode can be operated with high current density and long service life, the chrome plating is firmly combined with the substrate, and the surface is bright and clean.
Rhodium-plated:
Rhodium plated layer was silver white. Most of the current rhodium plating process using rhodium sulfate bath, used primarily in the jewelry industry for sliding rotary contacts printed circuit switch communications equipment and high-frequency switching components. Containing selenium plating Rhodium and Magnesium Silylate containing rhodium plating solution, the general industry requirements rhodium coating thickness of 0.1-0.2um rhodium plating process, the use of platinum-based and DSA coated titanium anode.
Palladium plating:
Palladium plating was silver white, the 20th century, 70s, in the electronics industry, palladium instead of gold plating process has been rapid development.Palladium plating solution is the most commonly used ammonia system, the presence of palladium in the form of ammoniacal palladium general palladium Plating easier to obtain, but often prone to cracking, because in the electro-deposition of palladium potential range, hydrogen is often the phenomenon of common electrowinning, palladium plating hydrogen absorption, hydrogen will be slowly released during placement, Cracks Palladium-plated anodes Pure platinum-based platinum-based DSA titanium anodes can be used.
Gold plating:
Currently used gold-plated solution with cyanide gold plating solution and non-cyanide gold plating . Gold-plated anode Original pure gold platinum-based platinum, platinum-based platinum plating electrode expensive, while DSA titanium anode longer life than titanium Anode, truly affordable.
