Bangdong have Electro Galvanized Zinc Plated pipe fittings . If you require Zinc Plated Steel Couplings , galvanized Butt Weld Pipe Fittings , galvanized Forged Pipe Fittings , galvanized Threaded Fittings , galvanized socket weld pipe fittings , you are in the right site . Electrogalvanized Zinc Plated Fittings. Zinc Plated Fittings have Butt Weld Pipe Fitting , forged Pipe Fitting two types .
Zinc Plated Butt Weld Pipe Fitting :
Elbow , Reducing Elbow , Equal Tee , Reducing Tee , Barred Tee , split tee , flanged pipe fittings , Concentric Reducer , Eccentric Reducer , Dish end , Cap etc .
Size : 1/2" and over
Zinc Plated Forged Pipe Fitting :
Thread elbow , Socket Elbow , Thread Tee , Socket Tee , Swage Nipple , Steel Nipple , Halp Coupling , Coupling , Union , Cap , Bushing , Olets etc .
Size : 1/2" to 4"
Electroplating
Electrogalvanized (electroplated) coatings are created by applying zinc to steel sheet and strip by electro-deposition. Similar to sheet galvanizing, the operation is continuous and coating thickness is minimal. Applied in a steel mill, sheet or strip is fed through entry equipmentinto a series of washes and rinses then into the zinc plating bath.
The most common zinc electrolyte-anode arrangementuses lead-silver, or other insoluble anodes and electrolytesof zinc sulfates. Soluble anodes of pure zinc are also used.The coating develops as positively charged zinc ions inthe solution are electrically reduced to zinc metal anddeposited on the positively charged cathode (sheet steel). Grain refiners may be added to help produce a smooth, tight-knit zinc coating on the steel.
Electrogalvanized coatings are applied to sheet steels and wire; and therefore, are used in similar applicationsto continuous sheet galvanizing or wire galvanizing.The most common applications are in automobile andappliance bodies and fasteners. Furthermore, to extendthe service life, electrogalvanized coatings can be treatedto make them suitable for painting, and this is often recommended due to the extremely thin zinc coating.
Galvanize process for forged pipe fitting
Galvanizing is the practice of immersing clean, oxide-free iron or steel into molten zinc in order to form a zinc coating that is metallurgically bonded to the iron or steel's surface. The zinc coating protects the surface against corrosion by providing protection to the iron or steel in two ways.
The zinc coating shields the base metal from the atmosphere
Because zinc metal is more electronegative than iron or steel, the zinc gives cathodic or sacrificial protection
Even if the surface becomes scratched and the base metal is exposed, the zinc is slowly consumed while the iron or steel remains protected from corrosion.
The hot dip galvanizing process is adaptable to coating nearly all types of fabricated and non-fabricated products such as wire, tanks, sheets, strip, pipes and tubes, fittings, hardware, wire cloth, hollow-ware, and structural assemblies.
All galvanizing consists of four fundamental steps:
Surface preparation
Prefluxing
Galvanizing
Finishing
The preparation steps consist of cleaning and pickling operations that free the surface of dirt, grease, rust and scale. The preflux step serves to dissolve any oxide that may have formed on the iron or steel surface after pickling and prevents further rust from forming. Clean, oxide-free work is galvanized by immersion into molten zinc. Finishing operations include quenching, removing excess zinc and inspection.
How does hot-dip galvanizing differ from electrogalvanizing?
Hot-dip galvanizing is a process of applying a protective zinc coating by dipping product in bath of molten zinc. Galvanizing is a favored method of protective coating due to its low cost, ease of application, and long maintenance-free service life. Generally applied at 830 to 870 degrees, the zinc will bond with the steel. It is the most common outdoor protective coating in use. When used on bolts, due to the thickness of the zinc coating, all galvanized nuts must be tapped oversize.
Zinc plating or electroplating is a process where zinc is applied by using a current of electricity. It is a thinner coating than hot dip galvanizing making it unsuitable for outdoor applications. Its advantages are its brightness and uniform color making it more aesthetically appealing.
Galvanized pipe fitting photos for your reference.
Galvanized Tee
Galvanized LR Elbow
Galvanized Thread Elbow , Galvanized Nipple
Galvanized concentric reducer
If you require any butt weld pipe fittings , forged pipe fittings , Weldolet Threadolet Socket Fittings , Threaded Fittings welcome to call us freely .
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