twin needle walking foot sewing machine

Latest articles



Latest articles

Links

  • Wire mesh is the iron screen with high corrosion resistance, the same is also one of the iron net class of widely used net class, its efficient corrosion resistance function in breeding industry, construction industry and other aspects are much liked. Its smooth and neat net surface, not only increased their aesthetic feeling, but also can play a certain decoration effect.


  • Post time: 09-01-23
  • 2.7*2.25mm means that the two strands are 2.7mm silk, and the thorns are 2.25mm silk.
  • The blade gill net has 3-7 buckles every 2 turns, and it is a circle card. After being opened, it forms a spiral shape. When stretching, you must take protective gloves to prevent scratches. When opening, only one side of the gill net needs to be fixed, and then the gill net needs to be opened in the opposite direction. Pay attention to the spacing of the holes should not be too large, otherwise it will affect the aesthetic effect. As long as the time to slowly return to the line, simple operation, convenient construction.

  • 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.

  • The spring operating at high temperature requires that it can adhere to the elastic limit and good creep resistance at high temperature. In addition, the forming process and heat treatment process of spring steel wire should also be considered. Cold drawn spring steel wire and oil quenched tempered spring steel wire are directly around the supply of steel wire spring, spring forming after the elimination of stress directly used.


  • Post time: 26-07-22
  • Different from common zinc barbed rope, high zinc barbed rope surface zinc content is very high can reach 6-8 times of the former, so there is a great advantage in the service life, ordinary products begin to corrosion three to five years while the latter will take longer to change. Stainless steel barbed rope is in material protection so durability is also better, these two products are long service life, but in terms of high price.

  • Many electrogalvanized wire diameter products are formed by wire drawing, wire drawing is a kind of processing technology, can make the product reach the required shape and meet the standard mechanical properties. Cold wire drawing is carried out at recrystallization temperature, hot wire drawing is carried out at crystallization temperature, warm wire drawing is drawn at higher than room temperature and lower than crystallization temperature. Cold drawing is a common drawing method.


  • Post time: 05-09-22
  • Galvanized

  • blade


  • Post time: 31-01-23
  • 3, the external environment, the climate is dry and ventilated environment is not easy to rust.
  • 3. Scope of application. Electrogalvanizing involves more and more extensive fields, fastener products have been widely used in machinery manufacturing, electronics, precision instruments, chemical industry, transportation, aerospace and so on in the national economy is of great significance.

  • “At present, many international well-known pet manufacturers have also seized the huge business opportunities of the pet economy, and they continue to develop high-tech pet products, which are favored by consumers.” China’s pet industry should constantly introduce new varieties, strengthen research and development of pet food and supplies, and improve the content of science and technology to win a place in the market competition, an industry insider said.

  • The screen is made into a box-like container, with stone filled with cages, can be used to protect and support seawall, hillside, road and bridge, reservoir and other civil engineering, flood control and flood resistance is a good material.

  • Large

  • Fifth, stainless steel is not easy to rust because the formation of rich chromium oxide on the surface of the steel body can protect the steel body,201 material belongs to high manganese stainless steel than 304 hardness of high carbon low nickel.
  • Three points should be selected before installation, which are the highest point (lowest) and the side line on both sides. The number of thorn rope column is good. When installing, it can be installed gradually according to the hook arrangement of thorn rope column.

  • 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.
  • 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.

  • 5, according to the wire diameter thickness to adjust zinc dipping time
  • Because of the high carbon content, simple cracks occur during water quenching, so double liquid quenching (water quenching + oil cooling) is mostly used, and oil quenching is mostly used for small cross section parts. This type of steel is generally used after quenching by medium temperature tempering or normalizing or in the surface quenching state. Mainly used for manufacturing spring and wear-resistant parts.

  • The characteristics of hexagonal wire mesh: strong structure, flat surface, with good corrosion resistance, oxidation resistance and so on.

  • 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.

  • Hexagonal


  • Post time: 08-07-22
  • Moderate rates of foam formation may be harmless. The presence of small, homogeneous particles of large denier in the tank can stabilize the foam layer, but the accumulation of excessive solid particles can cause an explosion.

  • galvanizing

  • Galvanized iron wire is divided into hot galvanized wire and cold galvanized wire (electric galvanized wire) is made of low carbon steel, after drawing molding, pickling rust removal, high temperature annealing, hot galvanized, cooling and other processes. Galvanized iron wire has good toughness and elasticity, zinc content can reach 300 grams/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance. The products are widely used in construction, handicrafts, wire mesh, galvanized hook mesh, spackle mesh, highway fence, product packaging and daily civilian and other fields.