Steel products such as rebar are placed in different types with galvanized reinforcement one of them. Sometimes the product is in the form of mesh for specific uses. Each type of steel rebar has a different price. The steel bar is a non-ferrous metal that can be more exposed and exposed to many elements found in the environment.
The ability of steel to withstand corrosion can be improved by galvanizing and using zinc protective coatings. During planting in concrete, reinforcement bars made of galvanized steel act as a barrier between rods and corrosive environments.
This protects the rods from corrosion effects. This creates a protective cover between the metal and its environment. The substrate layer protects the corrosion caused by aerial elements such as water and moisture, as well as other elements.
In addition, it can prevent galvanic metal corrosion. This happens when two metals are in contact with different electrochemical compounds in the presence of electrolytes such as salty water. One is the anode and the other is the cathode, but it depends on the atomic structure of the two metals.
anode will be corroded more rapidly than if left to its own device, while the cathode will eat at less speed than if left to its own device. One of the reasons for using zinc to galvanize is that it is in contact with many kinds of metals to the role.
Galvanized steel bars, also known as galvanized steel bars, are typical reinforcing steel bars that are coated with a zinc metal protective layer (Zn). Another name for galvanized steel bars is galvanized steel bars. Hot dip galvanized method is commonly used to provide zinc coating.
When implanted in the concrete, Rebar is placed under a corrosive environment; The Zn coating, which acts as an obstacle, protects the strip from this environment. In addition to barrier protection, zinc also provides cathodic protection in the preferred corrosion form in the presence of unprotected steel.
This type of zinc corrosion is known as anode corrosion. This means that the surface of bare steel is protected by Zinc, which is around it if there is a gap in the zinc coating.
galvanized reinforcing steel mesh
To reinforce the building, the steel bars are formed into a mesh pattern. One of the types of rebar that occurs in this process is the galvanized rebar. There are many different galvanized methods, and they vary in terms of the materials used, the thickness, and the types of processes used.
Galvanized Cold Hybrid
Base metal enters a pool on the melt as part of the hot-dip galvanized process. Surface preparation, galvanization and after treatment are three main processes in hot-dip galvanized technique.
To ensure that the base and zinc metal coating can be bonded with a high quality band, the base metal should first be physically, chemically or used either. The base metal is then floated to remove any residual oxides that may remain after cleaning. Then a metallurgical bond is formed by inserting the base metal into a hot-rolled liquid bath.
A metallurgical relationship between zinc and received metal is created during this molten bath. When the metal comes out of the bathroom, the reaction will react when it is exposed to air, combining with oxygen to produce zinc oxide. The last protective layer of Zinc oxide is created by interaction between Zinc particles and air oxide.
The advantage of using this particular method is that complex shapes can be processed quickly and economically. New technologies allow the hot dip galvanization process to continue to develop.
galvanic corrosion
The electro galvanization process by using electric current in an electrolyte solution inserts the zinc ions into the base metal. For this purpose, zinc ions that are electrically reduced to zinc are placed on the substrate with positive charge. In addition, it may be added to the seed modifier material, which creates a uniform zinc coating on the steel.
In a sheet metal roll, electromagnet galvanization is normally applied continuously. The zinc and lead silver sulfates and other insoluble anodes in zinc solution are used in most of the typical anode-electrolyte configuration.
pure zinc solution anode is also used. When zinc ions that are electrically reduced to zinc metal and then precipitate on a cathode with positive charge, the coating is formed. This method presents uniform coating thickness and coating with high accuracy.
pre-galvanized
For steel mill, pre-galvanizing is often used for material with pre-existing shapes. In this technique, metal sheets pass a cleaning step that resembles hot-dip galvanization process.
Then, to reunite the metal, it transfers it to a hot, zinc-liquid pool. The ability to galvanize steel sheets in large coils rapidly and with more uniform coating is a key advantage of this particular technology. Compared to hot-dip galvanization, this process has the advantages of being able to rapidly galvanize large steel sheets with more uniform coating.
automatic electroplating
Fine metal particles are welded to a work piece during the mechanical plating process to be coated. Small pieces in a drum with zinc and special chemicals are targeted to achieve this. Small pieces of iron and steel are cleaned and Copper Flash is covered before loading into a barrel.
These components are usually not larger than 8-9 inches and heavier than a pound. After that, the crude oil barrel enters a state of collapse as it is filled with special chemicals, glass beads and zinc powder. The glass beads of zinc powder hang onto the pieces and grind them to pieces. Then the parts are dry, packed and then treated with a passivation layer.
linear galvanized
The inline galvanizing process involves passing the tube from the bathroom on the molten before using the conversion coating to prevent the production of zinc oxide and hydroxide that is found in nature. In the conversion coating, often a transparent and inorganic coating is used.
This method only affects outside of the tube; The inner surface of the tube receives only one layer of zinc-rich color. This method provides an accurate control of formability, thickness and other properties of zinc coating. For the same thickness of steel, galvanized techniques in the line help to produce thin coatings than hot-dipped galvanized.
They can normally be processed without damaging the coating by bending or roll forming, for example, such as purlins and girts. In addition, pre-galvanized strips are used to create welded hollow parts, which are widely used.
