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The production of APIs is governed by strict regulatory frameworks imposed by health authorities like the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA). These regulations ensure that APIs meet quality standards and are manufactured in facilities that comply with Good Manufacturing Practices (GMP). Maintaining high standards throughout the manufacturing process is essential to safeguarding public health, as any impurity or inconsistency can lead to significant health risks.
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When this ore is specially refined into metallic iron, carbon, silicon, manganese, and other elements are added to it, so that the refined material is called general pig iron, which is also the material for the initial grade. According to the different requirements of the industry, different weights of alloy ingots are prepared in the smelting furnace according to the standard, such as weaving, Ming, paper, Lang, silicon, etc., and this smelting material is called combined gold ore.
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With the improvement of people’s living standards now, many families are keeping some small pets, these small pets also need a stable nest, pet cage has become a more important choice of people, each pet habits and living habits will choose to adapt to the cage.
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Post time: 20-07-22 - Some welding methods of galvanized steel mesh will reduce the quality of low carbon steel welded joints, such as electroslag welding. Because the line energy is high, the coarse grains in the heat affected zone of welding will become very coarse, leading to a severe reduction in impact toughness. After welding, it is necessary to normalize with refined grains to improve impact toughness.
- Packaging and binding electric galvanized wire is in the state of liquid zinc, after messy physical and chemical effects, not only on the steel plating thicker pure zinc layer, and also generate a zinc – iron alloy layer. This plating method not only has the corrosion resistance characteristics of galvanized wire, but also has a zinc-iron alloy layer. It also has strong corrosion resistance that can not be compared with galvanizing. Therefore, this plating method is especially suitable for all kinds of strong acid, alkali fog and other strong corrosion environment.
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1. After getting the bird cage, do not rush to use it. Clean the cage with a clean cloth or rubber. Then use fine yarn paper (do not use coarse sandpaper randomly), gently polish some parts that need to be polished again to improve the surface finish and trace, and pay attention to not damage the original bamboo green. After careful observation, use a razor blade to carefully clean the individual areas with small burrs.
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In order to remove the photosynovium and oxide remaining on the surface of galvanized iron wire after drawing or heat treatment, it is necessary to do the surface treatment of galvanized steel wire before plating. The common surface of low carbon steel wire is the light synovium or oxide of animal or vegetable oil; Medium and high carbon steel in addition to contain animal or vegetable oil components.
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The use of packaging galvanized wire with the development of industry and agriculture is also expanded accordingly. Therefore, galvanized silk commodities have been widely used in industry (such as chemical equipment, petroleum processing, Marine exploration, metal structure, electric power transportation, shipbuilding, etc.), agriculture (such as irrigation, heating houses), construction (such as water and gas transportation, wire casing, scaffolding, houses, etc.), Bridges, transportation, etc., in recent years. Because galvanized silk products have beautiful surface, good corrosion resistance and other characteristics, its use is more and more extensive.
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Pet cage has many types, and selective is bigger, pet cages are generally made of wire, with better coarse, then at the bottom with a wheel base, such a simple pet basket was made, in the wheel at the bottom of the mount is for the convenience of the mobile, a pet cages should also adapt to the location of the production in addition to a door, It is convenient for feeding pets.
- Hard black galvanized iron wire is made of low carbon steel wire directly drawn by drawing machine. The primary characteristics of hard black galvanized iron wire are high hardness and bright appearance. Primary use for welding hanger, umbrella, metal mesh, basket, basket and other metal products. Soft black galvanized iron wire is made of low carbon steel wire after annealing and softening, and then cold drawn. The primary feature of soft black galvanized iron wire is good flexibility, slightly higher hardness, bright appearance. Mainly used for metal mesh weaving process, electric welding mesh, welding process products.
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Compared with other galvanizing processes, the cleaning requirements for low carbon steel wire before galvanizing are low. However, under the current trend of increasing the quality level of galvanized layer, some pollutants brought into the plating tank are obviously harmful. Because cleaning galvanized coating wastes a lot of time and reduces the production, it is very important to properly clean and effectively rinse the substrate before electroplating.
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In order to remove defects such as surface film layer and surface inclusion of large roll galvanized wire, it can be treated by conventional technology. The presence of small homogeneous particles of large denier in the tank can stabilize the foam layer, but the accumulation of too many solid particles can cause explosion. Activated carbon mat to remove surface active substances, or through filtration to make the foam less stable, these are effective measures; Other measures should also be taken to minimize the intake of surface active substances. The electroplating speed can be significantly reduced by the introduction of organic matter.
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Some customers just use ordinary fences, but the pictures provided to the barbed rope factory are really used in the barbed rope products of prison, maybe because the customers prefer the style, but such products are really a little overqualified to be installed in ordinary areas. Even if customers prefer such barbed rope products, the high price is also prohibitive. The price and quality of the prison application barbed rope is certainly not the level of the barbed rope we contact in daily life.
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The technical term “galvanized” means that metal has been specially treated with zinc. Essentially, the wire is covered with a very thin layer of zinc. It is this thin layer of zinc that gives galvanized wire its many properties. Galvanizing can be done by dipping wire into a pool of zinc or by electroplating.
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The tensile strength of cold drawn spring steel wire is slightly higher than that of oil tempered steel wire. The large specification of cold drawn steel wire elastic force is too large, winding the spring is very difficult, so the cold drawn spring steel wire application specification is generally less than 8.0mm, oil quenching tempered steel wire application specification is generally less than 13.0mm. In fact, the diameter of 13.0mm spring is used to light tension spring steel wire, cold drawing wound made into shape and then quenched and tempered. Steel wire with diameter above 15.0mm is mostly made by heating winding process.
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B. When the thickness of the plating is greater than 4 mm, the zinc adhesion should not be less than 610g/m, that is, the average thickness of the zinc layer should not be less than 86 microns.
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The use of welding network is very wide, but also used in different industries, different places, many times the name is because of the use or use of the name, so the various uses of the welding network, destined to name a variety of different. Can be called row welding net, or zinc plating welding net or galvanized welding net. And then there’s the external insulation wire, just for insulation, usually on the outside of the wall, to reduce heat loss.
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Post time: 20-07-22 -
The external environment has a great influence on the storage of cold drawn wire. Especially during the rainy season, special attention should be paid to the air humidity of workshops and warehouses. It is recommended to use moisture test paper with a value between 8 and 10. If the PH value is high, attention should be paid to the corrosion of the internal cold drawing wire. Cold drawing wire in normal environment storage for two years no problem, cold drawing wire will not be corroded. However, it is necessary to place the coil gently during the handling process to avoid the winding position leading to the cable is not smooth.
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Post time: 09-03-23 -
The shape of the cage has round, square, octagonal, hexagonal and other shapes. Because the circular space uses a large area, it is more suitable for the activities of birds, and it is not easy to get hurt, so it is popular with everyone. A cage is dear to a man who loves birds, for it is inhabited by his master’s birds. If well maintained, it can be maintained for many years. Let’s look at how to maintain the cage.
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Dog cage mainly by welding, spraying, injection molding, surface treatment, electroplating dog cage is made of high quality steel wire, dog cages are with plastic and plastic surface treatment, electrophoresis, chrome plating, galvanized, imitation gold, etc., according to the customer request processing, respectively, also can be customized to sample, dog cage assembly of compact structure, neat and beautiful appearance, make folding and remove the cage is more convenient and quick, won’t take up too much space.
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Post time: 05-06-23 - In the rolling process, if the surface of the steel wire is rough, the relative friction coefficient of the steel wire and roll increases, the friction resistance increases, the steel wire elongation decreases, the width increases. In the production of weighted leather material is easy to wide, is because of its rough surface. On the contrary, the surface of the steel wire is smooth, because the friction resistance between the steel wire and the roll is small, it is easy to extend, and the width is small. Domestic steel wire in order to prevent rust, the surface coated with butter, such as butter removal is not clean, easy to slip when rolled flat, also affect its width.
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Generally, due to wet weather and more precipitation, oxidation and rust of binding iron wire NetEase occurs, so we should better store and use galvanized iron wire to avoid rust as far as possible. About the barbed wire, the surface of the barbed wire attached a layer of galvanized layer, the galvanized layer if too thick will not meet the SGS environmental standards. But if it is too thin, it is easy to oxidize with water molecules and rust.
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Hot dip galvanized hexagonal net is made of low carbon steel wire by mechanized braided welding and then by hot dip zinc treatment. The net color is white and shiny, thick zinc layer, uniform mesh, flat mesh surface, solder joint tension resistance, high corrosion resistance. The surface of the steel wire is usually protected by hot-dip galvanizing, and the thickness of the galvanized protective layer can be made according to the requirements of customers. Hot-dip galvanizing hexagonal net is another kind of twisting mesh corresponding to the galvanizing hexagonal net.
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Post time: 02-02-23 - 3. The structure of the dog cage should be reasonable
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The methods to control the thickness of galvanizing are as follows: you can slow down the lifting speed of the workpiece, control the time of galvanizing as far as possible, add the appropriate amount of thinning alloy, reduce the thickness, and improve the temperature of hot-dip galvanizing. But consider the zinc pot, iron pot should not exceed 480 degrees, ceramic pot can be 530 degrees, which can reduce the time of zinc immersion.
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1. The waterproof layer at the bottom of the cage should be checked regularly to prevent leakage at the bottom and replaced in time to avoid dropping liquid objects such as bird droppings, urine and water, resulting in corrosion of the cage edge.
- 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.
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