cement nails

cement nails

...

cement nails cement nails

Read More
  • cement nails

    ...

    cement nails cement nails

    Read More
  • Steel

    cement nails

    ...

    cement nails cement nails

    Read More
  • galvanized

    cement nails

    ...

    cement nails cement nails

    Read More
  • 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.

    cement nails

    ...

    cement nails cement nails

    Read More

  • Post time: 24-04-23

    cement nails

    ...

    cement nails cement nails

    Read More
  • If the surface of galvanized wire is black and the galvanized layer is thin and uneven, the galvanized wire is partly because the inventory storage time is longer, but also because the production technical requirements of galvanized wire do not meet the standard and lead to the quality problems of galvanized wire. According to the use of galvanized wire is different, galvanized wire has soft and hard, then the galvanized wire used for binding requires the flexibility of galvanized wire is better, the flexibility of galvanized wire is good, and it can be easy for workers to operate.

    cement nails

    ...

    cement nails cement nails

    Read More
  • Welding mesh is widely used in industry, agriculture, breeding, construction, transportation, mining and other aspects. Such as machine shields, animal fences, flower fences, window fences, access fences, poultry cages, egg baskets and home office food baskets, paper baskets and decorative. We can make it according to the special requirements of customers. Welding mesh is made of high quality low carbon steel wire row welding, and then cold plating (electroplating), hot plating, PVC plastic coated surface passivation, plasticizing treatment, smooth mesh, uniform mesh, solid solder joint, local machining stable performance, corrosion resistance, corrosion resistance. Features: Stainless steel mesh selection of high quality stainless steel wire row welding, more acid, alkali resistance, solid welding, beautiful, widely used and so on.

    cement nails

    ...

    cement nails cement nails

    Read More
  • 

    Popular articles

    Latest articles

    Links