fiberglass pultruded grating
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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.
- The third is the service life.
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When large rolls of galvanized wire are used to bind and reinforce the goods, corresponding binding methods should be selected according to the fastening node conditions of the strengthened goods, such as opening binding, opening binding, insertion binding and so on. The insulation layer of semi-hard and soft insulation products shall be based on the diameter of the steel pipe and the size of the equipment. Large rolls of galvanized wire or glue are tied together with a width of 60mm. The binding interval of semi-hard insulating products shall not exceed 300 mm; The larger length of felt and cushion shall not exceed 200mm, and the number of belts shall not be less than 2.
- The electrolytic deposition of large roll galvanized wire zinc-chin layer is basically the following two kinds of electrolyte: zinc is mainly in the form of zinc cation hydration in the solution; Zinc is mainly present in solution as complex anion. Acid electrolyte belongs to one class, complex cyanide and zincate electrolyte, and nickel sulfate electrolyte constitute the second class. Cyanide electrolyte and acid electrolyte are of great significance.
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6, the use of special formula and special UV absorbent, no fading, no yellowing, no peeling, no cracking, no foaming, no moth, the use cycle can be more than 30 years.
- 3, wear gloves, take about a bottle of disinfectant cap, pour into the basin, dilute with water according to the reference ratio. Dip a small brush into the diluted disinfectant solution and scrub the cage.
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2, mesh, mesh also directly affect the price of stone cage net
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Some raw materials in the production of unstable processing, the wire itself will exist burr, surface small pits and other local defects. Galvanized steel in galvanized, generally should pay attention to the galvanized layer protection time of galvanized wire, and the thickness of galvanized layer has a great relationship. Generally speaking, when the main gas is relatively dry and used indoors, the galvanized layer thickness of galvanized wires is only 6-12μm, and under relatively harsh conditions, the galvanized layer thickness of galvanized wires needs 20μm, and can be predicted to reach 50μm.
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3, reduce the bivalent iron ion in the plating aid used for hot plating wire, reduce the formation of zinc slag
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Greenhouse steel pipe is mainly made of greenhouse composite materials made of pull rod, pressure rod, column, and arch rod to cover the plastic film in a greenhouse. Wire factory introduces its this shape is circular plastic greenhouse, this greenhouse covers a large area, the effect of heat absorption is also very good, convenient to build, the cost of building a is also very low. The raw material source of greenhouse steel pipe is very rich and extensive, and the application effect is good.
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The quantity should be the same as the contract, cold drawing, carefully record the quantity of each specification and packing method. If there is a label, check whether the label is correct and take a photo to confirm. Each roll of iron wire is fastened with galvanized packing tape, and then tied with a very strong transparent plastic bag. The coated iron wire is wrapped with white braided cloth, and the galvanized iron wire is wrapped with green braided cloth, so as to ensure that the packaging will not be lax in the transportation process.
- One: according to the different color of the spray blade, its price is higher than that of the ordinary blade, but the cost performance of the spray blade is much higher.
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Post time: 11-10-22 -
Post time: 14-12-22 -
Some customers may not use the blade rope immediately when they buy it. Some are for retail and some are temporarily without the blade rope for site construction. At this time, customers need to follow up the characteristics of the blade rope for storage.
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Post time: 19-07-22 -
Post time: 23-09-22 -
When buying large galvanized wire, first look at the hardness of galvanized wire, only after the hardness reaches the standard can be used. The hardness standard of large coil galvanized wire is a very important performance index and an economical test method. However, for the hardness of metal materials, there is not a unified and clear definition including all test methods at home and abroad.
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The type of barbed rope is mainly reflected in the specification of the wire diameter, the thicker the diameter of the barbed rope produced is shorter, at the same time, the price is cheaper, mainly because the production efficiency is relatively high, because the price of the barbed rope is calculated according to the weight when it is sold. On the contrary, the finer the diameter of the wire, the longer the price is higher.
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The production process of large coil galvanized wire is relatively simple. The wire after cleaning is put into electroplating solution first. Of course, the plating solution should contain zinc oxide, a direct current of steel, another zinc plate in the plating solution. The zinc is transferred to the surface of the steel as a molecule. If it shows a bright and beautiful color, the wire is coated with zinc.
- Generally speaking, zinc is much more stable than iron, and will not rust in daily moisture or wet places. Z common galvanized iron wire equipment is usually we use the barbecue net, barbecue net generally requires to have a long service life, with galvanized iron wire equipment to wire on a layer of zinc, barbecue net is not easy to be corroded.
- Application: The structure can be used for slope support, foundation pit support, mountain rock face hanging net shotcrete, slope planting (greening), railway highway isolation shield.
- The installation mode of blade barbed rope consists of welded steel mesh and blade gill mesh. Galvanized bayonet rope, barbed wire, snake belly knife bayonet rope, flat bayonet bayonet, bayonet bayonet fence and other new protective net products. One of them. Spiral blade rope, also known as snake mesh, is divided into single ring blade rope and spiral cross blade rope two kinds. Single edge barbed wire without barbed wire, also known as barbed wire, is a new type of barbed wire, is a new type of protective net.
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The welding between low carbon steel, low alloy steel, medium carbon steel, alloy steel and the same kind of metal materials or dissimilar metal materials can be realized. The weld has good comprehensive mechanical properties, tensile strength can reach more than 400MPa.
- Because the size of the plane or the surface of the urban area is relatively small, many sports arenas are built in the more prosperous and lively sections, with hexagonal nets to protect the barrier, so it greatly reduces the spherical three-dimensional flying out of the field so affect the traffic order of the bad things.
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Due to the influence of production process or other factors, the zinc layer of galvanized wire products will be different to a certain extent, especially ordinary galvanized can not reach the beauty of electric galvanized, ordinary galvanized wire zinc layer is mainly for anticorrosion and corrosion prevention. Large volume galvanized wire products refers to the use of high quality low carbon steel, after drawing forming, pickling rust removal, high temperature annealing, hot dip galvanized, cooling and other processes, some galvanized wire products are made of iron wire galvanized.
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Post time: 28-03-23 -
Large coils of galvanized wire are divided into hot dip galvanized and cold dip galvanized. Hot dip galvanized wire is dark in color, consumes more zinc metal, forms infiltration layer with the base metal, and has good corrosion resistance. Hot dip galvanized wire can be maintained for decades in outdoor environment. Cold galvanized production speed is slow, uniform coating, thin thickness, usually only 3-15 microns, bright appearance, poor corrosion resistance, generally a few months will rust.
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Post time: 11-06-24 - cast iron ornamental
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