The process is as follows: after the straight pipe is cut, the induction coil is put on the part to be bent by the bending machine, the pipe head is clamped by the mechanical arm, and the intermediate frequency current is passed into the induction coil to heat the steel pipe. When the temperature of

Acceptance of straight seam steel pipe:1. The inspection and acceptance of straight seam steel pipes shall be carried out by the technical supervision department of the supplier.2. The supplier ensures that the delivered straight seam steel pipe meets the requirements of the corresponding product st

1. The importance of anti-corrosion of long-distance natural gas anti-corrosion steel pipesAt this stage, both domestically and foreign, the demand for natural gas is gradually increasing, among which natural gas has become an irreplaceable and important energy source. In this case, the demand for n

Simply put, the process of heating the steel pipe and controlling it to be above the recrystallization temperature for rolling is called hot rolling. The process of rolling below the recrystallization temperature, including normal temperature, is called cold rolling.Hot-rolled steel pipe has good pl

1. Spiral steel pipes shall not be stacked with acid, alkali, salt, cement, and other materials that are corrosive to steel in the warehouse. Different varieties of steel should be stacked separately to prevent confusion and contact corrosion;2. Large sections, rails, steel plates, large-diameter sp

1. Compared with 304 stainless steel pipe, the advantages of duplex stainless steel pipe are as follows:(1) The yield strength is more than double that of ordinary austenitic stainless steel, and it has sufficient plastic toughness required for forming. The wall thickness of storage tanks or pressur

Technical requirements for straight seam welded steel pipes:Technical requirements and inspection of straight seam welded steel pipes According to the GB3092 "Welded Steel Pipes for Low-Pressure Fluid Transport" standard, the nominal diameter of the welded steel pipe are 6~150mm, the nominal wall th

First, the accepted principle of spiral steel pipeThe quality inspection and acceptance of the spiral welded pipe shall be carried out by the technical quality supervision department of the supplier. The supplier must ensure that the delivered spiral welded pipe meets the requirements of the corresp

1. Multi-storey building fire pipe network settinga. When there are more than 10 indoor fire hydrants and the fire water consumption exceeds 15L/s, the indoor fire water supply pipeline should have at least two water inlet pipes connected to the outdoor pipe network, and the indoor pipes should be l

In the production process of stainless steel welded pipe, intermediate heat treatment and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is eliminated. The use of this heat treatment process not only improves t