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  • What is the difference between cold drawn precision seamless pipe and ordinary seamless pipe? 2019/04/26 General seamless steel pipe is mainly characterized by no welding seam, can withstand greater pressure, the product can be very rough as cast or cold drawn parts. Cold drawn precision seamless tube is a product which appears in recent years. The main reason is that the size of inner hole and outer wall has strict tolerance and roughness. The difference between cold drawn precision seamless tube and common seamless tube: 1
  • Processing method of precision seamless pipe 2019/03/18 Precision seamless pipe processing methods: first of all, there are two kinds of treatment mode of precision seamless pipe, the first is the use of fine DIP processing of steel pipe, the second group is the use of cold rolling technology, precision seamless because of the use of integrated punching forming, so there is no oxide on the surface, precision seamless pipe inherits the traditional characteristics of seamless pipe, in the
  • Properties of bright precision seamless pipe material 2019/01/16 The properties of bright precision seamless pipe material: 1. Stamping property refers to the performance of metal deformation without cracks and other defects. Many metal products are manufactured by stamping process, such as automobile shell, enamel product blank, pot, pot, pot and other daily necessities. In order to ensure the quality of products and smooth process
  • What kind of defects will appear in cold drawing seamless precision steel pipe processing? 2019/01/11 The defects of cold drawn seamless precision steel pipe processing are as follows: 1. Cold drawn seamless precision steel pipe will lead to the increase of micro defects such as lattice dislocation and surface roughness, and induce martensitic transformation and carbide precipitation. For example, the magnetic properties of austenitic steel increase after cold working. 2. The dislocation or phase transition of the material lattice occurs in the table
  • What is the material of cold drawn precision seamless tube? 2018/12/28 The materials of cold drawn precision seamless pipe are: 10 × 10, 20 × 10, 45 × 35, 27SiMn, 20Cr, 40Cr, 12CrMo, 35CrMo, Cr5Mo, Cr9Mo, 60Si2Mn, 65Mn, etc. Cold drawn precision seamless tube is mainly used for mechanical structure
  • Pickling and heat treatment process of seamless precision steel pipe 2018/12/21 Pickling process of seamless precision steel pipe: the carrier is soaked in 6mol / L hydrochloric acid for 2h Or concentrated hydrochloric acid heating boiling 30 minutes, filtering, washing with water to neutral, drying. Pickling can remove iron, aluminum, calcium, magnesium and other impurities on the surface, but can not remove the silanol group. Pickling carrier is suitable for analysis
  • Application scope of bright precision seamless pipe 2018/12/20 Bright precision seamless pipe has the advantages of no leakage under high pressure, high precision, high finish, no deformation in cold bending, flaring, flattening and no crack. Application scope of bright precision seamless pipe: bright precision seamless pipe is a kind of non chromium multi-element bainite type heat-resistant steel. Although there is no chromium in the steel, due to the comprehensive action of many elements, the steel tool is made of steel
  • What is the purpose of heat treatment of cold drawn precision seamless tube? 2018/11/13 Heat treatment of cold drawn precision seamless tube is an important link in cold drawing process. Whether it is the heat treatment of the blank tube without cold drawing, the heat treatment between working procedures in the cold drawing process or the heat treatment of the finished pipe after cold drawing have an important influence on the drawing effect and the metallographic structure or physical properties of the finished pipe after drawing. Cold drawn precision seamless tube
  • Notes on selection of seamless precision steel pipe 2018/11/09 Advantages of seamless precision steel pipe: the precision of seamless precision steel pipe is very high, so the consumption of labor and materials in mechanical processing is saved. Moreover, the specification of seamless precision steel pipe is more, and the application range is very wide. Secondly, the use of seamless precision steel pipe cold rolling out of the finished product precision is relatively high, and the surface quality is also very good, good straightness, steel pipe inside
  • What are the types of cold drawn seamless precision steel pipe? 2018/11/06 There are many kinds of cold drawn seamless precision steel pipe, which can be divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe and extruded pipe according to different production methods. 2. According to the shape classification, it can be divided into round pipe and special-shaped pipe. In addition to square tube and rectangular tube, there are oval tube, semicircle tube, triangle tube

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