stainless steel coil roofing nails

Cold galvanized, generally speaking, do not need heating, galvanized amount is little, this galvanized parts are easy to fall off in wet environment. Hot dip galvanizing, also known as hot dip galvanizing, is to melt the zinc ingot at high temperature, put some auxiliary materials in, and then dip the metal structural parts into the galvanized groove, so that the metal members are attached to a layer of zinc layer. The advantage of hot dip galvanized is that its anticorrosion ability is strong, the adhesion and hardness of galvanized layer is better.

If the zinc coating is good, but in 3% nitric acid when the light, the coating has dark shadow, passivation occurs when the film is brown, may be caused by foreign metal impurities such as copper or lead in the galvanizing liquid. When problems occur in the process of galvanizing large coil galvanized wire, the temperature and current density are checked first, and then the content of zinc and sodium hydroxide in the plating solution is measured and adjusted through the analysis of the plating solution. Whether DPE content is low can be determined by hull cell test.

After proper heat treatment or cold drawing hardening, high carbon steel wire has high strength and hardness, high elastic limit and fatigue limit (especially notched fatigue limit), cutting function is acceptable, but welding function and cold plastic deformation ability is poor.

Galvanized hexagonal net features: easy to use; Save transportation costs. It can be reduced to small rolls and wrapped in moisture-proof paper packaging, taking up less space. Coating thickness uniformity, stronger corrosion resistance; Simple construction, no need for special technology; It has strong ability to resist natural damage, corrosion resistance and adverse weather effects; Can withstand a large range of deformation, but still does not collapse. Fixed heat preservation and heat insulation effect.

Paint on the galvanized layer, the bonding force between each other has a great relationship with the baking temperature of the paint, and alkyd paint is coated after galvanized, and the adhesion is not a problem. After galvanized to do amino paint, paint adhesion is not very good. Do two bottom two surface, adhesion is good, if the two bottom two surface changed to two bottom three surface, that is, more paint, more baked once, again test adhesion is very bad, bad enough to tear the paint from the galvanized layer.

Blade barbed wire, also known as blade gill wire, blade gill net, is a new type of protective net. Blade thorn rope with beautiful, economical and practical, prevention effect is good, convenient construction, such as the excellent characteristics of plastic paint type razor wire is flake knife barbed wire rope after manufacturing, after rust protection processing and forming, the periphery of the razor wire should have very good anti-rust effect, peripheral processing should be good-looking, and can be a very good practical value, more convenient to install and Some advantages such as higher cost performance.

Hot dip galvanized hexagonal net is made of low carbon steel wire by mechanized braided welding and then by hot dip zinc treatment. The net color is white and shiny, thick zinc layer, uniform mesh, flat mesh surface, solder joint tension resistance, high corrosion resistance. The surface of the steel wire is usually protected by hot-dip galvanizing, and the thickness of the galvanized protective layer can be made according to the requirements of customers. Hot-dip galvanizing hexagonal net is another kind of twisting mesh corresponding to the galvanizing hexagonal net.

Razor blade barbed rope has been widely used in military sites, prisons, government agencies, banks in the world. The walls of living quarters, private homes, villas, fences, doors and Windows, highways, railway guardrail and border lines and other protection and security.

The characteristics of large volume galvanized wire is smooth and bright surface, but wet will affect the brightness of galvanized wire, so we must pay attention to avoid humidity when storing, can support a shelf on the ground, so that galvanized wire and the ground isolation, so that it will not be affected by the surface moisture, there is to pay attention to the change of weather, to avoid galvanized wire rain. Galvanized wire has good toughness and elasticity, the amount of zinc can reach 300 g/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance.