When selecting rock drill tools for tunnel drilling, it is important to consider several factors, including the type of rock formations to be drilled, the size and depth of the tunnel, and the available drilling equipment
The quality of hot-dip galvanized barbed wire is only the zinc layer attached to the surface of the wire, and with the chemical reaction, the zinc layer on the surface will gradually lose its role because of the oxidation reaction, which is more prominent in the humid environment. And because the use of rusty wire after all, it is said that the quality of hot-dip galvanized barbed wire is certainly not up to the level of stainless steel barbed wire.
- In addition, the corrosion resistance of hot-dip galvanized wire will also be affected by other factors. For example, in different environments, especially in some special chemical environments, such as acidic or alkaline environments, the corrosion resistance of hot-dip galvanized wire may be affected to a certain extent. At this time, it may be necessary to use other materials that are more resistant to corrosion to replace the hot-dip galvanized wire.
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?
Post time: 18-07-22- The management system of the rinsing water after the steel wire pickling should be regularly and regularly discharged after the rinsing water, and the rinsing water should be kept clean and low acid value as far as possible. The pH control is more appropriate. The concentration of plating aid should not be too high. Hot plating wire must be added ammonium chloride and zinc chloride according to the data of laboratory analysis, and the specific gravity of the composite solution is controlled in the range of 50~80g/L. The addition of ammonium chloride or zinc chloride raw materials without the results of laboratory analysis shall be subject to criticism and education, and economic treatment if necessary.
Post time: 01-09-22- Knife width: 6 (mm)
The production process of stainless steel blade piercing rope is basically similar to that of galvanized blade piercing rope, and the blade size is usually determined according to the mold.
Stainless steel blade barbed rope production process is basically similar to galvanized blade barbed rope production process, usually according to the mold to determine the size of the blade.
- Of course, the quality of any product is also affected by the implementation of the manufacturer’s norms. If it is the manufacturer of electric welding mesh in production, it does not have a high implementation of the norms, or the procedural norms on the production line have decreased, or there is no higher requirements on the production link.
Post time: 20-09-22Packaging: Welding mesh is generally packed with moisture-proof paper (color is mostly gray, yellow, plus trademarks, certificates, etc.), some like 0.3-0.6mm domestic sales of small wire diameter welding mesh, because the wire is relatively soft, coupled with small rolls, customers often require baling and bagging treatment, to prevent damage caused by shipment, etc. The wire of the electric welding net is straight, and also with wavy bend (also known as Dutch net). According to the shape of the mesh surface can be divided into: electric welding mesh and electric welding mesh roll.
Post time: 17-02-23Some customers are more concerned about the quality of the problem, so for the service life is more important, thorn rope factory will generally recommend the use of high zinc thorn rope or stainless steel thorn rope.
Post time: 18-05-22- Although many species of parrots are native to tropical regions, birds are susceptible to heat stroke. So in warm weather, don’t put the cage directly in front of a window in direct sunlight, or in an unshaded and unventilated garden.
Post time: 08-06-22We 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.
Black iron wire application in the process, the main is through the hot metal billet rolling into six point five mm wire rod, and then put it in the drawing into a line of different diameter, the plant and then gradually narrow drawing plate aperture, cooling and annealing, plating process, such as making a variety of different specifications of the wire, the wire compared with ordinary black iron wire, will be more softer, Softness is also very uniform, color is also consistent, widely used in the construction industry, mining, chemical industry, welding mesh, welding coat hanger, reprocessing industry and so on.
Post time: 22-06-22
Post time: 09-01-23Traditional 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.
- In order to ensure the electrical conductivity of steel wire, manufacturers need to follow a number of standards and regulations. For example, in the galvanizing treatment of steel wire, the international standard ISO 1461 should be followed to ensure uniform zinc layer thickness and surface gloss. In wire drawing processing, excessive stretching should be avoided so as not to deform the wire or lose its mechanical properties.
Post time: 24-04-22- The higher the carbon content of steel wire, the worse its plasticity, the smaller the section compression and elongation of steel wire, steel wire in rolling deformation is difficult, the width of the smaller. For alloy steel wire, because the alloy element dissolved in solid solution can improve the cold working hardening rate of steel wire, its deformation resistance is large, the rolling width is small, and it is easy to crack.
- The common specifications of small hexagonal mesh in production are: the width is 1.22m, and the commonly used width is generally 1m. In terms of length, there are basically no restrictions on small hexagonal nets. 1-100 meters can be produced. The production wire diameter of small hexagonal mesh is generally No. 27 wire to No. 18 wire, and the aperture size is 0.95cm-5.08cm.
- (4) can withstand a large range of deformation, but still do not collapse. Play the role of fixed thermal insulation;
Large roll galvanized wire is processed from low carbon steel wire rod, after drawing forming, pickling rust removal, high temperature annealing, hot dip galvanized. Cooling and other process processes. Galvanized wire is divided into hot galvanized wire and cold galvanized wire (electric galvanized wire). Large roll galvanized wire has good toughness and elasticity, the amount of zinc can reach 300 g/square meter, with thick galvanized layer, strong corrosion resistance and other characteristics.
- Generally speaking, in dry main gas and indoor use, the thickness of galvanized coating is only 6-12μm, but under poor environmental conditions, the thickness of galvanized coating is 20μm, can reach 50μm. Therefore, environmental factors should be considered when choosing the thickness of galvanized layer. Galvanized layer after passivation treatment, can naturally form a layer of bright, beautiful color passivation film, can obviously improve its protective function, decorative.
The prepared black wire welding net is placed in environmental protection galvanized equipment for galvanized treatment. The surface of galvanized welding net is evenly covered with a layer of metal zinc. The corrosion resistance of zinc is very good and it is not easy to be oxidized. The wire diameter error of galvanized welding mesh is very strict, and the gap should be controlled at about 0.02 mm. But whether the tension of an electric welding mesh is qualified, can only be tested by professional tools.
Post time: 06-04-23