Hot dip galvanized iron wire using high quality carbon structural steel, after drawing, galvanized iron wire processing. Hot dip galvanized iron wire is widely used in wire mesh, highway guardrail and construction projects. It has the characteristics of thick coating, strong corrosion resistance and strong coating. And according to the special needs of users, according to industry standards to provide various specifications of galvanized wire.
We often choose what kind of barbed rope instead of the type of barbed rope. In fact, the type of barbed rope is as important as the type of barbed rope. Let’s talk about the difference between 304 and 201 of the barbed wire rolling cage.
Moderate rates of foam formation may be harmless. The small homogeneous particles with large denier in the tank can stabilize the foam layer, but the accumulation of too many solid particles will cause explosion. Using activated carbon mat to remove the surface active substances, or through the filtration of foam is not very stable, this is an effective measure; Other measures should also be taken to minimize the introduction of surfactant.
The protective duration of the galvanized layer of large roll galvanized wire is closely related to the thickness of the coating. Generally speaking, in relatively dry main gas and indoor use, and in harsh environmental conditions, the thickness of galvanized layer needs to be very high. Therefore, the environmental impact should be considered when choosing the thickness of galvanized layer. After passivation treatment of galvanized layer, a layer of bright old and beautiful color passivation film can be generated, which can significantly improve its protective performance.
The derusting steel parts are immersed in the melted zinc liquid at about 500℃, so that the surface of the steel member is attached with zinc layer, so as to achieve the purpose of anti-corrosion. The surface of galvanized wire coating can see whether the quality of galvanized wire is good or not. If the strength of zinc attached to the wire is very poor, then this galvanized wire do not buy, because this galvanized wire must be poor galvanized wire.
The installation of guardrail should also follow certain steps, first of all, after the guardrail is transported, according to the length of the guardrail, determine the distance between the column, if the installation of the guardrail field is soft ground, then you can first dig out a 40*40*50cm embedded machine base. If it is a concrete floor, as long as the expansion bolt directly fixed. The design is not only for ease of installation, but also for harsh terrain conditions such as cliffs, with little anchorage and little excavation to achieve a quick and easy installation. Based on the characteristics of heavy hexagonal net twisted-pair structure, it can withstand the impact of falling rock even in the case of wire breakage.Iron products are common metal products in life. Iron products appear everywhere in our life, but there is a big problem in using iron products. Iron products will rust, and when rust occurs, it will affect the use and appearance of iron products. Adding non-metallic coating: clean, dry and coat the surface of iron and steel products with a layer of protective materials, such as oil, mineral grease, rust-proof grease, plastic and lacquer.
And high-quality data are constrained by production costs and production conditions, so some electric welding mesh manufacturers do not meet this requirement, in this case, there is no way to improve product strength. In addition to data, and produce process, even if again good data, but the factory did not meet the requirements of production process in welding, also can form the product under the high pressure welding, so it is also a kind of strength on the decline, process conditions of different manufacturers also have very big difference, so it formed a shopping mall on the above products are differences of strength.
However, because the bath contains highly toxic cyanide, the gas escaping from the electroplating process will do great harm to the health of workers, and its waste water must be strictly treated before discharge. Galvanized iron wire has good anti-corrosion and anti-rust ability, so it can be used in some outdoor guardrails or fences, especially on handicrafts, which are also of great use. Galvanized iron wire is not easy to rust and oxidation on the surface.
Stainless steel barbed rope in the way of corrosion is not very, because the surface is not treated but rely on its own raw materials for corrosion resistance, so there will be no chemical reaction.
When galvanized wire out of the light plating should be carried out light treatment. The bath temperature of galvanized wire should be controlled well. Galvanized wire, also known as hot dip zinc and hot dip galvanized, is an effective way of metal corrosion prevention, mainly used in various industries of metal structure facilities. It is to immerse the steel parts after rust removal into the molten zinc liquid at about 500℃, so that the surface of the steel member is attached with zinc layer, so as to play the purpose of anticorrosion.
The application range of small hexagonal mesh is also relatively wide, can be used for building wall fixed insulation layer, pipeline, boiler fixed heat preservation, decoration and other fields. Nemator roller cage is connected by nemator connecting clasp with longitudinal tension bar fixed on the support, and the connection between longitudinal tension bar and support is selected. The 2.5mm cold-drawn galvanized steel wire is wound 2 times and then tightened and fixed. The bracket is set on the column and the cross side of the protective fence with a span of 3m. Other spans are only set on the upper part of the column, and the bracket and the protective fence are connected with the bracket hoop.Galvanized wire coating rough, passivation film is not bright, bath temperature is too high. If the cathode current density is too high, zinc content in the bath is too high or sodium hydroxide and DPE content is too low; Solid particles or excessive foreign metal impurities in the electroplating solution can cause such problems. Solution: If the coating of large galvanized wire is rough, there may be solid particles in the plating solution. If the roughness of the part is severe, the current density may be too high.
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.
The formation process of hot dip galvanized layer is between the iron matrix and the outside of the pure zinc layer, the formation of iron-zinc alloy process, the workpiece surface in hot dip plating when the formation of iron-zinc alloy layer, so that the iron and pure zinc layer is well combined. The process of large roll galvanized wire can be simply described as: when the iron workpiece is immersed in the molten zinc liquid, the first zinc and α-iron (body-centered) solid melt is formed on the interface. This is a crystal formed by the matrix metal iron dissolved with zinc atoms in the solid state. The two metal atoms are fused with each other, and the attraction between the atoms is relatively small.
Mainly suitable for flat welding.First, galvanizing can enhance the corrosion resistance of the product. Zinc has high potential and excellent anodic protection. When the surface of the product is galvanized, zinc will have an electrochemical reaction with oxygen and water in the environment, thereby forming a dense zinc oxide protective film, preventing the metal from further contact with external oxygen, water and other substances, slowing the corrosion rate of the metal. Galvanized products after wire drawing processing, because the surface of the product has a more dense zinc oxide protective film, it can better resist external corrosion and improve the corrosion resistance of the product.
The height of the shield should not be less than two meters. The length of the shield should be the width of the journey and the extension 10 meters away. The vertical load of the handrail on the bridge is 1.2KM/m, and the horizontal external load is 2.5KM/m, both of which should be calculated separately. Galvanized hook mesh is attributed to a hook mesh, it is the selection of galvanized wire, hot dip galvanized wire as raw materials, woven through the hook mesh crimping truncated.
2, reduce the bivalent iron ion in the plating aid used for hot plating wire, reduce the formation of zinc slag