4, safety, environmental protection, harmless to people (livestock), even if it does not intend to touch the guardrail will not hurt like steel, iron guardrail. Stainless steel wire mesh can be used as poultry cage, egg basket, channel fence, drain tank, porch guardrail, anti rat net, mechanical protective cover, livestock and plant fence, grid frame, etc.
Surface coating, surface inclusion and other defects can be removed locally from the surface of the deposited layer before galvanized, which can be found and treated by conventional techniques. Excess foam is caused by the introduction of soap and saponable fatty surfactants into the tank. Moderate foam formation rates may be harmless. The presence of a large number of tiny homogenous particles in the tank, which can stabilize the foam layer, mat with activated carbon to remove surface active substances, or make the foam less stable through filtration, are effective measures.
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.
Steel mesh jinsu appearance treatment: polyethylene thermoplastic powder coatings is also called polyethylene powder coating, is the high pressure polyethylene (LDPE) as the basic material, adding a variety of function additives, colors, its antiseptic powder coating manufacturing processes, jinsu coating layer has the function of chemical, shock, circuitous, acid, salt fog corrosion, decorate a function and has good appearance.
The smaller the mesh of decorative hook mesh, the finer the demand wire, the larger the mesh, the thicker the demand wire. For example, the mesh aperture of 6.5cm requires an iron diameter of 3.5mm to 4mm. Then a fine welding will break, and then thick too heavy, workers can not bear.
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.
There is in place to use, the blade thorn rope is commonly border, installation and use of the fence, and prisons, and galvanized barbed wire is in the orchard, fence livestock and so on the installation of large area, although the use of relatively large, but not as good as the use of blade thorn rope and high grade, so this is also the main reason for the price is quite high. Finally, the general installation site of the blade barbed rope for the protection level requirements are relatively high, so the quality requirements for the product is also relatively high, but the ordinary galvanized barbed rope because of the requirements in the installation site is more casual, which is also for the processing process for the quality requirements are relatively low.
The welding core is the metal core of the electrode. In order to ensure the quality of the weld, there are strict regulations on the content of various metal elements in the weld core. In particular, there are strict restrictions on harmful impurities (such as sulfur and phosphorus), and the quality of the weld core metal should be better than that of the base metal. Arc welding cannot be carried out on a smooth rod without a coating. This is because the arc stability is very poor, splashing is very large, and the weld is not well formed. After long-term practice, it is gradually found that the performance of the electrode is greatly improved by coating the welding core with some mineral raw materials (i.e. electrode coating). (1) Ensure stable arc combustion, so that the welding process is normal. (2) Using the gas produced after the drug skin reaction, protect the arc and the molten pool, prevent the harmful gases in the air (such as nitrogen, oxygen, etc.) from invading the molten pool, such as these gases will cause cracks and pores in the welding material, so that the welding can not achieve the ideal effect. (3) After the drug skin is melted, slag is formed, which covers the weld surface to protect the weld metal, make the weld metal slowly cool, help the gas escape, prevent the generation of pores, and improve the structure and performance of the weld. (4) After melting, various metallurgical reactions will be carried out, such as deoxygenation, sulfur removal, phosphorus removal, etc., so as to improve weld quality and reduce alloying element burning loss.
