1 roofing nails coil

Pressure welded steel grid plate is the steel grid plate fixed by pressure resistance welding at each intersection of bearing flat steel and transverse bar, which is called pressure welded steel grid plate. Torsion torsion square steel is generally used for cross bar of pressure welded steel grid. Although they do not belong to the same variety, but in the steel lattice plate standards and performance are still the same.

Now most people want to choose a few when choosing barbed wire material better thorn rope, but the special barbed wire the better, not right, it is important to choose which model is most suited to their own thorn rope,, although is very simple product, but in the use of these products are for specific situation is different, and has a different effect, Maybe now consumers do not have too much concept of blade barbed rope, in fact, such barbed rope products have a higher safety factor.

In strict accordance with the multi-pass small compression rate drawing, the total compression rate is 96.48%, reducing the scraping of zinc layer. The whole wire drawing die is made of tungsten steel die and polycrystalline die. The Angle of the working cone of the wire drawing die is 12° ~ 16°, and the length of the sizing belt is 0.15 of the diameter of the wire, so as to ensure that the deformation of the zinc layer is basically synchronous with the steel wire substrate.

The physical methods mainly include manual rust removal and mechanical rust removal, chemical rust removal is generally the use of pickling method, practical application, usually according to the appearance of the workpiece rust status and different post-treatment process, choose different rust removal methods, among which pickling rust cleaning is more commonly used. That is, the iron and steel workpiece with oxide skin or rust is etched in the acid lotion, mainly to remove the oxide or rust layer on the surface of the steel.

The invention technology is used to put zinc block into the plating aid pool regularly, so that the bivalent iron in the plating aid becomes trivalent iron, and plays an important measure to stabilize the PH value within a numerical range, and also facilitate the filter filter out the trivalent iron ions in the plating aid; Ferric ion is controlled between 0.3 and 1.0g/L; When hydrogen is not released in the plating aid, the zinc block is continued. It is an effective measure to reduce zinc slag, improve the fluidity of zinc liquid and reduce the thickness of zinc layer to play the role of plating aid filter.

The main difference between the two is the carbon content. The carbon content of iron is 2.11 percent or greater, while the carbon content of steel is 2.11 percent or less. The iron carbon alloy with carbon content above 2.11% is cast iron (pig iron), which is basically not malleable and cannot be drawn into wire. Secondly, the content of impurities is different. The content of harmful impurities such as sulfur and phosphorus in steel is smaller. Steel wire general color focus, iron wire color light point, white point.

The production process is to roll the hot metal billet into 5mm thick steel, and then put it into the wire drawing device, draw into different diameters of the line and gradually reduce the aperture of the wire drawing disk. Production process through cooling, annealing, coating and other processing technology, and then made into a variety of different specifications of galvanized wire. Galvanized wire production because of simple process, wide application, early development. Galvanized wire or steel wire is a cold working product of steel wire, and the material used is generally low carbon steel or stainless steel.

With the technique of preventing the coating from peeling off the hook mesh, hook tennis court chain link fence systems have long tended to define lines that economically attach amenities and add value to the property. The interlocking system also allows deductions for easy attachment control.

We can complete the installation of ordinary double-strand barbed rope by using wood shaft or even trees, but the blade barbed rope has high requirements for construction.

Steel wire and iron wire have a lot of similarities, but carefully distinguish, you will find that they are not only different in the material, but also in the product characteristics are very different. So when choosing, make sure you make a clear distinction between the two. Steel wire factory introduces steel wire carbon structure steel made above, generally not galvanized, used for machinery, spring. Black and hard; Iron wire: low carbon steel (mild steel), galvanized, used for joining and wrapping. It’s white and soft.

Stainless steel hexagonal network is composed of machine will be produced stainless steel wire of a kind of metal mesh, not easy corrosion, the survival of the fixed number of year is longer, net of wide, coarser size, strong practicability, flexibility and other unique places, stainless steel hexagonal wire netting material is stainless steel wire, wire diameter because stainless steel wire big viscosity of large stainless steel hexagonal network would be hard to manufacture, Of course, it is more difficult to hold the edge or twist the edge, so stainless steel hexagonal mesh whether from the material or artificial are expensive, but stainless steel hexagonal mesh will not rust and use years is also very long, appearance without disposal can achieve the use effect.

Galvanized wire A stable layer of zinc is coated on the outside of the wire, which is used to protect the wire and make the wire service life longer. When producing galvanized wire, the wire is pickled. Pickling is to use some acid mist or acid to wash off some oxides on the surface of iron, that is, rust, and some other corrosive substances, to achieve the purpose of cleaning iron, so that zinc will fall off when galvanizing.