- 6, passivation to remove hydrogen parts should be passivation after the removal of hydrogen, passivation before the application of 1%H2SO4 or 1% hydrochloric acid activation 5~15s. Passivation shall be treated with colored chromate unless otherwise specified in the design drawings.
Enclosure to calculate the use of barbed rope, so as to reasonably plan to purchase the amount of barbed rope to facilitate construction.
Galvanized iron wire is a substance we often see in life. It is the zinc gradually plated on the metal surface through the unidirectional current in the electroplating tank. The production speed is slow, the coating is uniform, the thickness is thin, usually only 3-15 microns, the appearance is bright, the corrosion resistance is poor, and the corrosion will rust in a few months. Galvanized wire has the characteristics of thick galvanized layer, strong corrosion resistance, strong galvanized layer, etc., the products are widely used in construction, highway walls, Zahua, weaving nets.
Application range of hot dip galvanizing: because of the thicker coating, hot dip galvanizing has better protective performance than electric galvanizing, so it is an important protective coating for iron and steel parts in harsh working environment. Hot dip galvanized products are widely used in chemical equipment, petroleum processing, Marine exploration, metal structure, power transmission, shipbuilding and other industries, in the agricultural field such as irrigation, greenhouse and construction such as water and gas transmission, wire casing, scaffolding, Bridges, road guardrail and other aspects, has been widely used.
Most of the production enterprises or large public places, they can play a defense hook mesh in the choice of time, often will hook mesh quality in position, so galvanized hook mesh this product few people are interested in, but does this show that galvanized hook mesh is not useful?
- Power plant insulation pipe insulation layer to be wrapped with metal mesh, commonly used is galvanized hexagonal mesh, the general specification of aperture 1.5-2.5cm, wire diameter: 0.5-1.0mm.
Galvanizing is a process of coating a metal surface with zinc in an electrochemical reaction on the metal surface to improve the corrosion resistance of the metal. Wire drawing is a process in which metal materials are drawn by mechanical methods to reduce their cross-sectional area and increase their length. So, the combination of galvanized to wire drawing two processes, what impact on the performance of the product?
- C, coating uniformity: galvanized layer is basically uniform with copper sulfate solution test etched five times without exposing iron.
- C, coating uniformity: galvanized layer is basically uniform with copper sulfate solution test etched five times without exposing iron.
The different spacing of the thorn rope is mainly in order to save costs to consider, because if they are too close, then obviously a little waste of resources, but the installation is too sparse will not work. Usually the bottom spacing is about 10cm, and the top is up to 20cm, this is because the higher the place is more difficult to climb over, usually more than one meter without the help of tools it is difficult for ordinary people to climb over, and the bottom because of the relatively tight can prevent personnel from drilling in the past.
Application range of hot dip galvanizing: because of the thicker coating, hot dip galvanizing has better protective performance than electric galvanizing, so it is an important protective coating for iron and steel parts in harsh working environment. Hot dip galvanized products are widely used in chemical equipment, petroleum processing, Marine exploration, metal structure, power transmission, shipbuilding and other industries, in the agricultural field such as irrigation, greenhouse and construction such as water and gas transmission, wire casing, scaffolding, Bridges, road guardrail and other aspects, has been widely used.
Post time: 13-09-22- 5, the guardrail cavity is equipped with galvanized steel lining or aluminum alloy to strengthen, with enough strength and impact resistance, so that the guardrail has the strength and beauty of steel. Stainless steel welding mesh can be used in the construction industry, highway, bridge for reinforcement. Used for mechanical protection, industry, agriculture, construction and so on.
- The COMBINATION OF disSIMILAR METALS, such as steel and copper, tin, lead and other non-ferrous metals, during hot dip operation, the dissolution of this non-metal will cause the change of zinc film structure. Also like the combination of old and new steel, in pickling operation, the new material is easy to pickling over. In addition, such as part of the processed components, excessive pickling at the processing place is also.
If the blade barbed rope produced by the barbed rope factory wants to be made into a straight line, it can’t be made too long because of the constraints of logistics.
- Bridge bridge reinforcement is durable in poor function and aging, etc., through the wire mesh reinforcement, can prolong the service life of the bridge, avoiding the phenomenon of bridge cracks, subsidence and so on, wire mesh can play an obvious effect of crack in bridge reinforcement engineering, engineering construction speed, to enhance the crack resistance of concrete function, better economic benefit.
2, hot plating wire plating after processing
Usually according to the general people, the blade barbed rope is the guardrail, widely used in garden apartments, military bases, private residential areas, government machinery where there is a fence, generally used blade barbed rope. The biggest advantage of the blade is that the protective effect is good, and the installation and maintenance is very convenient, strong isolation ability, good resistance effect, etc.
In addition, before the wire enters the zinc liquid, a layer of insulation material containing zinc oxide reducing agent can reduce the heat loss and zinc ash floating. When the zinc solution contains 0.002%-0.005% aluminum, the brightness of the zinc layer can be increased obviously, and excessive zinc ash can be prevented from oxidation on the surface of the zinc solution.
- Galvanizing can be done by zincate galvanizing or chloride galvanizing. Appropriate additives should be used to obtain a coating that meets the requirements of this standard. Light treatment should be carried out after light plating. The parts that need to be dehydrogenated for passivation should be passivated after dehydrogenation. Before passivation, 1%H2SO4 or 1% hydrochloric acid should be applied for activation for 5~15s. Passivation shall be treated with colored chromate unless otherwise specified in the design drawings.
The life of the “wire”, is actually “low carbon steel wire”, carbon content in less than 0.2%. The surface is usually coated with zinc plating because it is easy to rust. Under atmospheric conditions, the galvanized layer will not rust before most of the fall off, relatively soft. The life of the “steel wire”, is carbon content in about 0.6% of the “carbon steel wire”, or carbon content in about 0.8% of the “high carbon steel wire”, they have enough hardness and elasticity after appropriate heat treatment, high strength. Uses such as winding ordinary spring and so on.
That layman how to identify the amount of galvanized, can use the following three methods. Professionals told us that the surface layer of the high-zinc barbed rope would not be particularly smooth due to the zinc behind it, which could be found when comparing the two products. Although the zinc barbed wire zinc layer is thin but relatively smooth.