1 hour fire rated ceiling access panel

Wire mesh welding after galvanized is through the end of the welding and then the cold company to make wire mesh wire mesh steel mesh construction mesh floor heating mesh galvanized or hot galvanized. After the first galvanized welding is to change the wire mesh, after the end of welding can see the welding spot; The two processes are different prices are also very different, the cost of the first plating after welding is low, the appearance is smooth, and the cost of the first welding after plating is higher, not easy to rust.

Friends in the industry know that galvanized iron wire has two kinds of cold galvanized iron wire and hot galvanized iron wire, so what is the difference between cold galvanized iron wire and hot galvanized iron wire? Which is good?

These citizens, who love the subway, rely on it and enjoy its speed, often like to call themselves the U-pin price. Is widely used in industry, agriculture, farming, construction, transportation and other welded wire mesh is used in the field of high quality low carbon wire line of welding and become, then after cold, hot dip plating, PVC plastic coated surface passivation, such as plasticizing processing, production of metal mesh with smooth surface, uniform mesh, solder joint is firm, stability, corrosion resistance, good corrosion resistance characteristics. The U nail price is made of high quality stainless steel wire row welding; For example, machine protective cover, animal animal fence, flower fence, window guard bar, channel fence, poultry cage and home office food basket, paper basket and decorative articles, more acid, alkali, welding firm, beautiful and other characteristics.

Broken wire is the iron bright wire, fire wire, galvanized wire, plastic coated wire, paint wire and other metal wire, wire factory according to customer requirements for straightening after sizing cut, has the characteristics of easy transportation, easy to use, widely used in the construction industry, handicrafts, daily civilian and other fields. No limit on length, packing as required. Annealing wire also known as black oiled wire, black annealing wire, fire wire, black iron wire. Compared with cold drawing, black annealed wire is more economical as raw material for nails.

Domestic iron wire factory has been able to consume wire rope, radial low steel wire, umbrella steel wire, spring steel wire, bicycle saddle spring steel wire and other products. In the 1980s, hot – plated low carbon steel wire, fan net cover steel wire, carbon structure steel wire, bed steel wire and so on were also published. The elongation of wire is increased after annealing. Make the product more soft and increase the scope of application of the wire.

1. The diameter of the raw material and the thickness of the diameter are directly affected;

Hot drawing is the heating before the wire enters the die hole, mainly used for high melting point wire drawing; The temperature drawing is carried out by heating the heater to the range of temperature, mainly used for galvanized steel wire, difficult to deform drawing.

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; Electroplating solution with solid particles or excessive foreign metal impurities, will lead to such problems. Solution: If the large roll galvanized wire to the above coating 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.

Now hexagonal net is used in a large number of Bridges, piers and bridge buttress inclined plane protection, bridge buttress inclined plane there are many kinds, people according to the inclination of the inclined plane to choose the right hexagonal net, when the inclined plane gentle, people generally use gabion slope protection system, and in the case of steep slope, people will use gabion mesh gravity protection wall.