Original surface: 1 surface subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industrial equipment, etc., the thickness is thicker from 2.0MM to 8.0MM. The stainless steel pipe processing factory also has a matt
The high-frequency induction coil of the straight seam steel pipe should be as close as possible to the position of the extrusion roller. The internal stress of the steel pipe is small and evenly distributed, which can effectively prevent stress corrosion cracking, high dimensional accuracy, and fac
1. The use of large-diameter stainless steel pipe can be divided into oil well pipes (casing pipes, oil pipes, and drill pipes, etc.), pipeline pipes, boiler pipes, mechanical structure pipes, hydraulic prop pipes, gas cylinder pipes, geological pipes, chemical pipes (high-pressure chemical fertiliz
The fire-fighting pipeline includes two systems: the fire hydrant system and the water sprinkler system.Stainless steel fire-fighting piping system is a kind of fixed fire-fighting facility widely used in China. Nowadays, 304 stainless steel pipes are used in fire water supply pipes in sprinkler sys
Pipelined HDPE flange connection device, including carbon steel pipe (1), lined HDPE pipe (2), carbon steel flange, HDPE flange (4), and metal ring gasket (5); carbon steel pipe (1) Carbon steel flanges are welded at the breaking point, the HDPE-lined pipe (2) is inserted into the carbon steel pipe
First, the methods of cold galvanizing and hot galvanizing of galvanized steel pipes are different:1. Cold plating: It is a process of anti-corrosion treatment on the surface of workpieces through electrochemical principles.2. Hot-dip galvanizing: also known as hot-dip galvanizing, is a method in wh
Production temperature of straight seam steel pipe: In the process of producing straight seam steel pipe, the temperature must be strictly controlled, to ensure the reliability of welding. If the temperature is too low, it may cause the welding position to fail to reach the temperature required for
(1) The warehouse should be selected according to the geographical conditions. Generally, an ordinary closed warehouse is used, that is, a warehouse with a roof, a wall, tight doors and windows, and a ventilation device;(2) Do not stack together with acid, alkali, salt, cement, and other materials t
The spiral seam submerged arc welded steel pipe is drilled in rotation and begins to enter the soft formation. Under the action of the tritone, the drill bit first produces elastic shear deformation of the formation and then is removed under the pressure of the tritone. In the simulated environment,
The seamless stainless pipe is made by rolling, the rolling method involves piercing the material while it is being rolled, and is suitable for mass production. When the round billet is rotated while being compressed in the diametric direction, the central part of the billet becomes loose, which mak
