The picture above shows the perforation site of seamless steel pipes. Many steel pipes with uneven thickness occur at this time, so it is very important to strictly control the perforation link.   Fine rolled steel pipes and cold drawn steel pipes may also have uneven thickness problems due...

The finished product of seamless precision steel pipe will have the problem of uneven thickness. How did it happen? Many people do not understand. Today we will talk about how the uneven thickness of seamless steel pipes such as cold drawn steel pipes, cold-rolled steel pipes and hot rolled steel pipes is caused....

In recent years, raw materials with excellent corrosion resistance are provided for processed steel products in the steel industry due to the rapid development of polymer compounds. Following the color coated steel plates, organic coated steel pipes were also developed in the late 1960s. Besides stable chemical properties,...

A heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid, which is mainly used in the fields of petroleum, chemical boilers, metallurgy, electricity, ships, heating, refrigeration and air conditioning, machinery, food, pharmaceuticals, etc.; it can be used as a heater, cooler, condenser,...

(6) Welded steel pipe (GB3092-93) for low-pressure fluid transportation and galvanized welded steel pipe (GB3091-93). Standard: Article 1: It is suitable for pipelines for conveying water, compressed air, gas, steam, condensed water and heating system. Galvanized pipes are used for conveying water and the condensed water,...

Metal pipes Various steel pipes (1) Seamless steel pipe Standard: Article 1: Pipes (seamless steel pipes) with outer diameter φ<219mm or less are available for selection; Article 2: Seamless steel pipe (GB8163-87), hot rolled and cold drawn ordinary carbon steel, high quality carbon steel, low alloy steel and common...

Dangers of pipeline vibration The rotating of the equipment and the medium flowing in the pipe will cause mechanical vibration with low-intensity. The dangers of pipeline vibration are mainly as the following.   Harm to the worker Pipeline vibration will interfere with the vision of the worker and make the worker...

Materials of small diameter seamless steel pipes: High-quality carbon structural steel, carbon structural steel, low-alloy high-strength structural steel, alloy structural steel, stainless steel and 20# structural steel. Seamless steel pipes whose outer diameters are small can be called seamless steel pipes with small...

What are commonly used heat treatments, purposes and scope of application of steel pipes in cold drawn and cold rolled production? Heat treatment is an important part in cold drawing and cold rolling of steel pipes. During the production process, heat treatment of steel pipes can be classified into tube billets heat...

The Purge The purge refers to the process that the air purge or the steam purge are often used to clean the pipe based on the service condition of the working medium and how dirty the inner surface of the pipe is after the process pipeline system is installed. The general requirements of the pipe purging are as the following....