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  • A PP bag silai machine is specifically designed for sewing and stitching polypropylene bags, which are commonly used for packaging agricultural products, industrial materials, and consumer goods. These machines are engineered to handle various bag designs and sizes, making them an essential tool in factories that manufacture PP bags.


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  • Moreover, with the rise of sustainability in fashion, automatic button sewing machines can play a significant role. By enhancing efficiency and reducing waste, they allow businesses to operate more sustainably. For instance, fewer mistakes in button placement mean less fabric scrapping and reduced resource consumption overall. This aligns with the growing consumer demand for eco-friendly production practices, ultimately benefiting the environment.


  • The Zig Zag Dressmaker Sewing Machine A Craftsperson’s Essential Tool


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  • Additionally, the durability of these machines means that you can expect a long-term investment. While they may come at a higher upfront cost compared to basic models, their robust design and powerful performance ensure they stand the test of time, making them worth every penny.


  • In conclusion, owning a hand-operated leather sewing machine is not merely purchasing a tool, but embracing a tradition, a craft, and a way of life. It's an invitation to create, innovate, and appreciate the beauty that lies in the union of human hands and a machine built to endure. This remarkable piece, now available for sale, awaits the skilled hands that will breathe life into leather, one stitch at a time.

  • What is an Overlock Sewing Machine?


  • Overall, saddle stitch machines are an essential tool for any business that produces printed materials. Their efficiency, versatility, professionalism, and durability make them a valuable investment that can help to streamline your printing process and improve the quality of your finished products. Whether you're a small business owner or a large-scale publisher, a saddle stitch machine can help you produce high-quality documents that meet your specific needs and requirements.

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  • Galvanized wire to galvanized evenly, a body is now its cross section, the second is the longitudinal uniformity. In the actual operation process, such as the jitter of steel wire, the surface scum in the plating pot and other reasons will cause the accumulation of galvanized layer on the surface of galvanized wire, and efforts should be made to solve the problem.

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  • In addition to these reasons, we should pay attention to the tooling and process must be stable, and regular testing should be done to ensure the uniformity of galvanized layer.

  • Excellent anticorrosive makes its popularity in the feed, the net surface smooth and tidy, increased the look and feel, can be adornment effect, this characteristic makes it to show in the mining industry, due to high quality with low carbon materials as raw materials, to make it unique general iron mesh screen does not have flexibility, determine its plasticity in use process, It can be used for the deep processing manufacturing of hardware technology, the batch swing of complex wall body, underground leakage prevention and cracking prevention, light net body, so that this cost is much lower than the cost of iron screen, more can realize its economy and benefit.

  • 4, safety, environmental protection, harmless to people (livestock), even if it does not intend to touch the guardrail will not hurt like steel, iron guardrail. Stainless steel wire mesh can be used as poultry cage, egg basket, channel fence, drain tank, porch guardrail, anti rat net, mechanical protective cover, livestock and plant fence, grid frame, etc.
  • 1. Zinc layer thickness: under normal circumstances, the thicker the zinc layer, the better the corrosion resistance of electrogalvanized wire. This is because the increase in the thickness of the zinc layer can improve the self-corrosion performance of the zinc layer and form a better protective layer.
  • The mixture of rare earth and aluminum enhances the fluidity of zinc liquid, makes the coating more uniform, and also reduces the zinc consumption. Hot dip galvanized wire has better protection performance than cold galvanized wire, which makes it good application in chemical experimental equipment. Hot dip wire coating thicker, so that it has good corrosion resistance, can be in the outdoor sun and rain and other harsh environment can be maintained for decades, so hot dip galvanized wire is widely used in construction, traffic guardrail and other outdoor facilities.

  • Now large roll galvanized wire in our life the use of more and more, to galvanized wire products bring a great market, galvanized wire products are more and more types. The surface coating of good quality galvanized wire is continuous and smooth. When the plating parts are installed and combined, there can be no flow hanging, slag or drop remaining, and no surface defects such as iron exposure. Good quality galvanized wire, coating must be uniform, roughly uniform in copper sulfate solution soaking five times without exposing iron. And with hammering test does not bulge, do not fall off. This is a good galvanized wire should have characteristics.

  • Bridge bridge reinforcement is durable in poor function and aging, etc., through the wire mesh reinforcement, can prolong the service life of the bridge, avoiding the phenomenon of bridge cracks, subsidence and so on, wire mesh can play an obvious effect of crack in bridge reinforcement engineering, engineering construction speed, to enhance the crack resistance of concrete function, better economic benefit.

  • 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.

  • The drawing process of the product drawing process has a great influence on the product function. Generally, a large total surface reduction rate of about 90% (see area reduction rate) and a small pass surface reduction rate (about less than 23%) are selected to ensure the endurance of the product. On the high strength spring steel wire, drawing should control the exit temperature of each passage of the steel wire is lower than 150℃, to avoid the steel wire due to strain aging and appear to change the crack, which is the formation of steel wire scrap the primary disadvantage.

  • Black iron wire is mainly used in the construction industry, handicrafts, woven screen, product packaging, parks and daily life used to tie the wire. Hot dip galvanized wire is processed from low carbon steel wire rod, which is processed through drawing molding, pickling and rust removal, high temperature annealing, hot dip galvanized and cooling, etc. Hot dip galvanized wire quotation, market

  • The hot plating wire uses zinc-free slag to add hot melt zinc and galvanize, which avoids the traditional heating process and radiates the surface 1653 of zinc liquid surface 4102 to the hot melt zinc, reducing the high temperature oxidation on the surface of zinc liquid. At the same time, the heating body is in contact with the zinc liquid, and the heat is directly transferred to the zinc liquid. The utilization rate of heat energy can reach more than 90%, which reduces the heat radiation of the zinc liquid surface.

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  • Post time: 28-02-23
  • No less than 5 disks should be extracted from each inspection lot for diameter error inspection. 1 point of steel wire should be extracted from each disk to measure steel wire diameter, and the actual diameter of steel wire at this point should be taken as the average value of the two vertical directions. The diameter error of cold-drawn low carbon steel wire should conform to the rules in the table below. The unqualified inspection batches shall be checked one by one, and the qualified batches can be used for engineering.

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  • The wire mesh is composed of low carbon steel wire or medium carbon steel wire, high carbon steel wire or stainless steel wire. There are two kinds of manufacturing technology of steel wire mesh, one is the weaving method, the other is the welding connection, the formation of grid.

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  • 4. When cleaning the cage, remember not to brush violently, but pay attention to the strength. Otherwise easy to damage the surface of the paint layer.

  • 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.

  • 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.

  • Therefore, when the zinc reaches saturation in the solid melt, the two elements of zinc and iron atoms are diffused with each other, and the zinc atoms diffused into (or infiltrated into) the iron matrix migrate in the lattice of the matrix and gradually form an alloy with the iron, while the iron diffused into the molten zinc liquid forms an intermetallic compound FeZn13 with the zinc and sinks into the bottom of the hot galvanized pot, that is, zinc slag. When the workpiece is removed from the zinc leaching solution, the surface of the pure zinc layer is formed, which is hexagonal crystal, and its iron content is not more than 0.003%.

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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.

  • Are you familiar with galvanized wire mesh? Do you know what to pay attention to in the process of use?

  • Using activated carbon mat to remove surface active substances, or through filtration to make the foam is not too stable, this is an effective measure; Other measures should also be taken to reduce the amount of surfactant introduced to Z.

  • 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.