9 gauge expanded metal

The key and important parts with tensile strength greater than 1034Mpa should be relieved of stress at 200±10℃ for more than 1 hour before plating, and the carburized or surface hardened parts should be relieved of stress at 140±10℃ for more than 5 hours. The cleaning agent used for cleaning shall have no effect on the binding force of the coating and no corrosion on the substrate. Acid activation Acid activation solution should be able to remove corrosion products and oxide film (skin) on the surface of parts without excessive corrosion on the matrix.

Now when most people buy barbed rope, they choose blade barbed rope. Why is this? From the material, the blade barbed wire process is made of hot-dip galvanized steel plate or stainless steel sheet to press the sharp blade sheet, and the high-tension galvanized steel wire or the blade barbed wire is made of stainless steel wire as the core wire. Because the shape of the gill net is not easy to contact, so it can reach an excellent protective barrier effect.

Zinc dipping time should be adjusted according to the thickness of wire diameter. The method of adjustment is to use the lead screw above the zinc pot, the length of the distance to the ceramic sinking roller. Thick wire diameter zinc dipping time should be long, fine wire diameter zinc dipping time should be short, zinc dipping length is in the range of 2~3.5m, which is also to reduce the zinc consumption of steel wire, is an aspect of maintaining the uniformity of zinc layer.

Traditional wire mesh is crisscross woven into the wire, with the development of the economy, the rapid rise of all walks of life, the use of traditional wire mesh limitations gradually exposed, such as: aquaculture, to the chicken circle a cage can not be too dense, the wire can not be too thick, woven up the net wire once the mesh is too large net surface will become soft.

Steel mesh galvanized: galvanized refers to the surface of metal, alloy or other materials coated with a layer of zinc to play a beautiful, rust prevention and other surface disposal technology. Now the first choice of method is hot dip galvanized, galvanized solution has cyanide bath and cyanide-free bath two categories. Cyanide bath bisects micro cyanide, low cyanide, medium cyanide, and high cyanide.

In order to improve the corrosion resistance of steel pipe, the general steel pipe is galvanized. Galvanized steel pipe is divided into hot dip galvanized and electric galvanized. The layer of hot dip galvanized is thick, the cost of electric galvanized is low, and the surface is not very smooth. Used for steel blowing oxygen pipe, generally with small diameter welded steel pipe, specifications from 3/8-2 inches of eight. Made of 08, 10, 15, 20 or 195-Q235 steel strip, in order to prevent corrosion, some should be aluminized.

Railway is not only the main artery of national economy, but also an important means of mass transportation to protect people’s travel. It plays an important role in the process of economic and social development. Therefore, the safety issue is an important guarantee for railway transportation, one is a symbol of the railway transportation enterprise product quality, the other is also the focus of social attention. The off-road collision accident is one of the focus of public opinion on the railway industry. How to grasp the off-road safety management, eliminate the off-road collision accident from the source, maximize the protection of people’s life and property safety, and reduce the non-operational cost of railway enterprises is a key content of railway safety work in the new era. We should install protective nets on both sides of the railway, which are also barbed wire protective nets, so as to prevent accidents.

As we all know, the mechanism of resistance to atmospheric corrosion of zinc includes mechanical protection and electrochemical protection. Under the condition of atmospheric corrosion, there are ZnO, Zn(OH)2 and basic zinc carbonate protective film on the surface of zinc layer, which to a certain extent slows the corrosion of zinc. When this protective film (also known as white rust) is damaged, a new film will be formed.

In order to improve the corrosion resistance of steel pipe, the general steel pipe is galvanized. Galvanized steel pipe is divided into hot dip galvanized and electric galvanized. The layer of hot dip galvanized is thick, the cost of electric galvanized is low, and the surface is not very smooth. Used for steel blowing oxygen pipe, generally with small diameter welded steel pipe, specifications from 3/8-2 inches of eight. Made of 08, 10, 15, 20 or 195-Q235 steel strip, in order to prevent corrosion, some should be aluminized.

Ordinary blades installed on the walls of the barbed wire fence height in two metres of general construction cost in more than a dozen yuan a metre, but if the prison on the height of the wall construction modest have already reached the four or five meters so that every one meter of the cost of construction in 30-40 yuan, mainly because the work high above the risk is bigger. The construction cost is different, but the price of the blade barbed rope is the same. The construction cost is often higher than the product. In this way, the blade barbed rope factory recommends customers to use the blade barbed rope with better quality to avoid the tedious time and cost of subsequent removal and installation.

Stainless steel blade barbed rope under normal circumstances, basically 20 or 30 years is no problem, but because of the problem of its own material will appear a certain degree of rust, this is also because usually stainless steel blade barbed rope used by the material is 304 material, in daily use if in a long-term humid environment will cause certain corrosion. But usually users buy stainless steel blade barbed rope is basically life will not have problems users can also rest assured to use.

2. Eliminate caked zinc residue on zinc liquid surface