sodium thiocyanate ph
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The secondary treatment stage is primarily biological, relying on microorganisms to break down organic matter. However, several chemicals are still employed to enhance this process. For instance, flocculants like polyacrylamide may be used to promote the settling of biomass, facilitating easier removal of residual sludge. Additionally, nutrient management is critical during secondary treatment, as excess nitrogen and phosphorus can lead to water bodies’ eutrophication. To address this, chemicals such as ammonium sulfate or magnesium hydroxide may be introduced to balance nutrient levels and avoid environmental imbalances.
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During this process, each time the wire is pulled over, the surface hardens due to the high friction temperature. So basically every time you pull it you have to annealing it in the furnace. On the one hand, it is to reduce the surface hardness. On the other hand, during the process of wire pulling, only the surface is deformed, and the center is unchanged. So there’s a lot of stress inside. Therefore, it is necessary to rely on annealing to eliminate the internal stress, so that the wire becomes soft again to eliminate the stress before being drawn again.
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Post time: 02-02-23 - Plastic spraying is also known as electrostatic powder spraying. It is the use of electrostatic attack device to make plastic powder charged, adsorbed on the surface of the iron plate, and then through the baking of 180~220℃, so that the powder can be melted and adhered to the metal surface. Plastic spraying products are mostly used in the indoor box, and the paint film appears flat or matte. Spray powder mainly acrylic powder, polyester powder and so on.
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Post time: 10-05-23 -
Post time: 06-05-22 -
The characteristics of galvanized hexagonal net: easy to use; Save transportation costs. It can be shrunk into small rolls and involved in moisture-proof paper packaging, taking up little space. Coating thickness uniformity, stronger corrosion resistance; The construction is simple and does not require special technology; Strong resistance to natural damage and corrosion resistance and adverse weather effects; Can withstand a large range of deformation, and still not collapse. It has the function of fixed heat preservation and insulation.
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Now most people buy barbed rope choose blade barbed rope, why is this? From the material blade barbed wire technology blade gill net is made of hot-dip galvanized steel plate or stainless steel sheet stamped out sharp knife sheet, high tension galvanized steel wire or blade barbed wire stainless steel wire as core wire combination of the resistance device. Because the gill net shape is not easy to contact, so it can achieve excellent protective barrier effect. The primary raw materials of products are galvanized sheet and stainless steel plate.
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Strength of galvanized wire: tensile strength is the great tensile stress that the material can withstand before tensile fracture; Yield strength has two indexes: upper yield and lower yield. It is a process in which the stress does not increase but the deformation continues to occur during the tensile process. When the force value drops for the first time, the major stress is the yield strength, and the yield strength must be less than the tensile strength.
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The use of galvanized anticorrosion treatment is better, the metallurgical connection between galvanized layer and steel, combined with the appearance of steel as a whole, making the coating more durable, more reliable. In the suburbs, the galvanized thickness of hot dip galvanized can adhere to more than 50 years without repair, in the suburbs or near the seaside, galvanized layer can adhere to more than 20 years without repair, is the choice of anti-rust and anti-corrosion. Coating has strong toughness, in the process of transportation or use, can resist extrusion, withstand some damage, hot dip galvanized anticorrosion treatment both save time and effort, and faster than other processing, than dipping, spraying to save much time and effort.
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Iron products are common metal products in life. Iron products appear everywhere in our life, but there is a big problem in using iron products. Iron products will rust, and when rust occurs, it will affect the use and appearance of iron products. Adding non-metallic coating: clean, dry and coat the surface of iron and steel products with a layer of protective materials, such as oil, mineral grease, rust-proof grease, plastic and lacquer.
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Post time: 26-05-23 -
We basically know that the barbed wire fence generally has two kinds of ring and linear filamentous, the overall protective wire mesh selection of galvanized, stainless steel processing raw materials, long-term use is not easy to rust. Barbed wire fence uses stainless steel barbed wire, plastic coated barbed wire, aluminum coated barbed wire, galvanized barbed wire and other raw materials through special wire drawing into the strand planning, has a strong role in protection and maintenance. Widely used on both sides of the highway, grassland, gardens and other places, because it is a field protection product and therefore updated faster, so how to use the barbed wire fence after abandonment? Here are some of the uses of discarded blades.
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- The main raw materials of blade barbed wire are galvanized wire and galvanized sheet. Because the price of galvanized sheet is more expensive than galvanized wire, it is directly reflected in the price of blade barbed wire sales. There is also the difference in processing technology also leads to the difference in the price of the blade barbed rope. The traditional barbed rope is mechanically twisted, with relatively small labor consumption and high production efficiency. But the blade barbed rope is after the second mechanical processing in the artificial processing operations to appear. Therefore, there is a big gap between labor force and production efficiency. These factors lead to the price of the blade barbed rope is more expensive main factors.
- Zinc dipping time should be adjusted according to the thickness of wire diameter. The method of adjustment is to use the lead screw above the zinc pot, the length of the distance to the ceramic sinking roller. Thick wire diameter zinc dipping time should be long, fine wire diameter zinc dipping time should be short, zinc dipping length is in the range of 2~3.5m, which is also to reduce the zinc consumption of steel wire, is an aspect of maintaining the uniformity of zinc layer.
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As we all know, iron wire rust is due to contact with water and oxygen chemical reaction, therefore, how to prevent galvanized iron wire rust, first of all, in the storage of galvanized iron wire should choose ventilated dry place, avoid wet or rain leakage, in use, in addition to follow the principle of first in first out, if accidentally caused by the destruction of galvanized layer, should be coated with anti-rust paint treatment, Otherwise, it is easy to lose the protection of galvanized layer and cause galvanized iron wire rust.
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Post time: 14-07-22 -
1, stress relief before plating where the maximum tensile strength is greater than 1034Mpa key and important parts before plating should be at 200±10℃ stress relief for more than 1 hours, carburizing or surface quenching parts should be at 140±10℃ stress relief for more than 5 hours.
- Relatively speaking, the wire is relatively soft, suitable for binding. Disadvantages are low hardness, low tension, easy to stretch, not suitable for building materials. In different applicable environment, we should make a reasonable choice. So in the usual use of cold drawing wire and wire, according to their own needs to choose, although the length of the same, but the performance is not the same.
- The cleaning agent used for cleaning has no effect on the adhesion of the coating and no corrosion on the base material. Acid activation Acid activation solution should be able to remove corrosion products and oxide film from the surface of parts without excessive corrosion of the matrix. Zinc plating may be zinc plated with zincate or chloride and appropriate additives shall be used to obtain a coating that meets the requirements of this standard. After light plating, light treatment is carried out. Passivated parts requiring hydrogen removal shall be passivated after hydrogen removal. Activation with 1% H2SO4 or 1% hydrochloric acid for 5 ~ 15s prior to passivation.
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Did not do the adhesion test of powder spraying or fluorocarbon spray on the packaging galvanized wire, but there are two points for reference: one, in the sealed or air circulation environment, non-metallic volatiles can corrosion zinc coating; Second, zinc above 230 degrees (c) will brittle the base metal. After powder spraying and fluorocarbon spraying, it is necessary to bake at a higher temperature and in a sealed environment, causing rapid corrosion of zinc, resulting in loose corrosion film resulting in decreased adhesion of coating, and even leading to brittle situation of steel wire.
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Cats are agile and good at jumping. Eat fish, rats, rabbits, birds, etc. The reason why cats like to eat fish and mice is because cats are nocturnal animals. In order to see things clearly at night, they need a lot of taurine, and mice and fish contain taurine, so cats are not only because they like eating They eat fish and rats, and they eat because of their own needs. Since cats are widely raised, the market prospect of cat cages is very promising.
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Therefore, the rust of galvanized black iron wire has a great relationship with storage. At the same time, after rust, it should also be reasonable for post-treatment to avoid affecting its use effect. Of course, when the black iron wire is galvanized, the thickness of the galvanized layer should be ensured, so that the possibility of rust can be reduced. Speaking of galvanized iron wire, perhaps many people think it is relatively rare, in fact, it is not.
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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.
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At present, there are two main kinds of electric galvanized wire products, hot dip galvanized wire and electric galvanized wire. The difference is that the way of galvanizing is different, and the quality of the products is different. Hot dip galvanized wire zinc layer thick, corrosion resistance is stronger, but correspondingly, the price is high. Galvanized wire zinc coating thin, corrosion resistance is poor, but the price is low.
- 5. The bird cage should be sprayed with transparent wood environmental protection paint every 1-2 years. This protects the cage’s skeleton from the effects of weathering.
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Post time: 22-06-22 -
Daily residents still have a demand for galvanized barbed rope, but often the quantity is not particularly large. If the barbed rope factory ships the goods, then the additional freight may be higher than the price of customers to buy the barbed rope in the market. Barbed rope factory for mass purchase of customers to sell their demand is relatively large, but also want to find a manufacturer for procurement is also reasonable. Customer procurement problems can be in the thorn rope factory more perfect introduction at the same time also let the customer more at ease.
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With a large pickpocket used for steel wire, into the zinc liquid before the surface of the zinc ash stirring; Use a small outlet for galvanized steel wire; Zinc pot steel wire outlet in 30 minutes, with pickpockets back and forth, until the large, floating zinc residue into brown, real zinc ash, zinc ash surface. The extracted zinc ash should be brown yellow real zinc ash, zinc surface, effectively reduce zinc consumption. This is one of the biggest steps to bring zinc consumption down, and it’s a real problem, one that hasn’t been solved for years.
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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: 10-05-23 -
It is best to use special columns to fix the barbed rope installation, because the standard column is not only beautiful shape and better protection effect.
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