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The application of black iron wire in the process is mainly through the hot metal billet rolled into 6.5 mm wire rod, and then put it into the wire drawing device into a different diameter line, and then gradually reduce the aperture of the wire drawing disk, cooling and annealing, coating and other processes, made into a variety of different specifications of iron wire, this kind of iron wire and ordinary black iron wire compared, will be softer, Softness is also very uniform, color is consistent, widely used in the construction industry, mining, chemical industry, welding mesh, welding hanger, reprocessing industry.
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The production process of large rolls of galvanized wire is a level of drawing, through the mold into a slightly smaller diameter than the original. And so on down to the desired length. One pull is not desirable, must be numbered, from coarse to fine is dependent on metal ductility. If it changes too much it just breaks. After drawing to a certain diameter, galvanized, so that the finished product.
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1. Adjust electroplating process parameters
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Large coil galvanized wire is made of high quality low carbon steel wire rod processing, is made of high quality low carbon steel, after drawing molding, pickling rust removal, high temperature annealing, hot dip galvanized. Cooling process and other processing. Galvanized wire is divided into hot galvanized wire and cold galvanized wire. Galvanized wire in the process of smelting there are a lot of need to pay more attention to the place, galvanized wire products in the manufacturing process will experience a lot of process, of which the following galvanized wire annealing is a very important step, this step to the nature of galvanized wire has brought a lot of help.
- The acceptance of cold-drawn low carbon steel wire shall be conducted according to the same production unit, the same raw material, the same diameter, and shall not exceed 30T for an inspection lot, and check the base material into the factory or out of the inspection statement. The inspection items for each inspection lot are appearance quality, diameter error, tensile test (including tensile strength and elongation) and repeated bending test.
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Post time: 01-06-22 -
Hot dip galvanized welding mesh is made of iron wire, processed by precision automatic mechanical technology. The mesh surface is smooth, the structure is strong, and the integrity is strong. Even if the local cutting or local pressure is not relaxed, the hot dip zinc is processed. Hot dip galvanized welding mesh surface white color, thick zinc layer, high zinc content at the solder joint, uniform mesh, flat mesh surface, solder joint tensile resistance, high corrosion resistance. It has the advantages that ordinary barbed wire does not have.
- Pure zinc is more stable in dry air. In moist air or water containing carbon dioxide and oxygen, the surface will generate a layer of basic zinc carbonate based thin film layer, which can delay the corrosion rate of zinc layer. Comparison of corrosion resistance of zinc coating in aqueous solution of acid, alkali and sodium chloride; It is also resistant to corrosion in atmospheres containing carbon dioxide and hydrogen sulfide and in oceanic atmospheres; In high temperature and high humidity air and contain organic acid atmosphere is small, galvanized layer is also easy to be corroded.
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In the purchase of large rolls of galvanized wire, see the hardness of galvanized wire first, only after the hardness reaches the standard can be used. The hardness standard of large roll galvanized wire is a very important performance index and an economic test method. But for the hardness of metal materials, there is not a unified and clear definition including all test methods at home and abroad.
- Hook mesh from the point of view of weaving quality inspection requirements, hook mesh wire and silk staggered can not loose, the whole piece of hook mesh can not loose deformation. Of course, if the customer special requirements out of the net, showing loose phenomenon can not blame the production side. Whether the mesh meets the specification requirements and the wire diameter meets the wire diameter.
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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.
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Post time: 14-10-22 -
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.
- Generally, galvanized wire used for welding is required to have a certain hardness. After acceptance of galvanized wire, the first thing to do is to feel the hand, and the other thing is to test on the machine. Because the average user does not have testing equipment, it is also very inconvenient to test on the machine. Use a micrometer to measure the diameter of galvanized wire evenly, and keep it about 0.02mm above and below the contract signing standard, with neat appearance, no leakage plating and no mess.
- Even PVC coated barbed rope in ultra wet areas, will play an unexpected result.
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Steel wire and iron wire have many similarities, but carefully distinguish, will find that they are not only different in the material, but also in the product characteristics of the great difference. So when choosing, be sure to make a clear distinction between the two. Steel wire factory introduces steel wire carbon structural steel made above, generally not galvanized, used for machinery, spring. Black, very hard; Wire: made of mild steel (mild steel), galvanized, used for joining and binding. White and soft.
- Heavy hexagonal mesh can be used for slope support, mountain rock face hanging net shotcrete, slope planting green, it can also be made of stone cage cage, stone pad cage, for rivers, DAMS and seawall prevention and control of erosion and reservoirs, river interception with stone cage.
- When in use, wrap into a roll cage. First, its ventilation is good, conducive to the air drying of corn; Second, occupy a small space, convenient drying, good air permeability, light transmission; Third, beautiful and strong, reusable, cost-effective. And in the storage process, it is easy to cover in rain and snow weather to avoid the deterioration of corn mold.
- Zinc pot workers should be determined to do duty and responsibility. Do not leave the post without leave, always observe the change of hot plating wire galvanized layer, and according to the analysis results, master the asbestos block gap friction, how long it takes to press, replace the pressing face; Adjust the working face; Until all four sides of the asbestos block are used up, maintenance workers will continue to use the block after repair when necessary to reduce the consumption of asbestos block.
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The material of steel structure will affect the organization and thickness of hot dip galvanized film. For example, high tension steel containing silicon, carbon content is high, easy to react with molten zinc quickly, the result of excessive growth of alloying, will cause a grayish black appearance, but does not affect its corrosion resistance. Or heat treated steel, if its tensile strength exceeds 90kg/mm2, after hot dip operation, easy to reduce its strength, etc.
- Second, positive and negative twisting rope cost-effective
- Annealing is to restore the plasticity of wire, improve the tensile strength of wire, hardness, elastic limit, etc., the wire after annealing is called annealing wire. In the production process of annealing wire, it is very important to ensure the quality of the finished wire, make the wire have certain strength and suitable degree of soft and hard. The annealing temperature is between 800 ℃ and 850℃, and the length of furnace tube is lengthened appropriately for enough holding time.
- Barbed rope manufacturers specializing in galvanized barbed rope, hot dip galvanized barbed rope, blade barbed rope, stainless steel barbed rope, plastic coated barbed rope, positive and negative twisted barbed rope production for ten years.
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The difference between them can be so divided, the amount of zinc on the surface of the high zinc thorn rope is about 5 times that of the general zinc thorn rope, which greatly extends the time of rust prevention ability. In the appearance of the two products are silver and white at the same time the metal texture is better, for the difference between the two products if it is not good to distinguish, but for long-term work experts can be able to distinguish the two at a glance.
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Stainless steel barbed rope in the way of corrosion is not too, because the surface is not processed but depends on its own raw materials for corrosion resistance, so there will be no chemical reaction. After a long time of use, will not be similar to hot dip galvanized barbed rope surface corrosion coating problems will rust, because the stainless steel barbed rope internal material and the surface of the material is the same.
- 4. Choose according to habits
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