Introduction to industrial steel pipes
In the industry, the production process of stainless steel pipes is rapidly updated, and the range of applications is very wide, and the production of stainless steel pipes also has a very important position in the steel industry. The stainless steel pipe is only one of the many mainstream steel pipes, we know that the steel pipe is also in a wide range of applications occupy an irreplaceable position, the following to introduce the current various mainstream steel pipes.
Classification of steel pipe
Mainstream steel pipe classification methods are more, according to the production method can be divided into seamless steel pipe and welded steel pipe, according to the steel can be divided into carbon pipe and alloy pipe, stainless steel pipe, etc., according to the pipe end connection method can be divided into plain pipe (pipe end without thread) and wire pipe (pipe end with thread), according to the surface coating characteristics of the steel pipe can be divided into black tube (not coated) and coated tube. According to the cross-section shape of the steel pipe can be divided into round steel pipe and shaped steel pipe, in addition, it can also be divided according to the use of the steel pipe, generally have pipe for pipe, thermal equipment pipe, mechanical industry pipe, petroleum geological drilling pipe, chemical industry pipe and so on.
Characteristics of steel pipe
The characteristics of the general steel pipe have two points, first, because the steel pipe has a closed hollow geometry, it is suitable for use as a liquid, vapor and solid transportation pipeline. The second is that under the same weight conditions, the steel pipe has a larger section modulus than other steel forms, that is, the bending and torsional resistance is stronger, and it is an economic section steel and steel.
Production method of steel pipe
The general production process of steel pipe is blank, forming, finishing, a finished product, reprocessing, secondary finished product. Generally according to the requirements of the steel pipe to determine the production process, the selection of production equipment, at the same time, the process and equipment are constantly updated to meet the increasing requirements.
According to the different final forming of steel pipes, it can be divided into seamless pipe production and slotted pipe production, and cold processing belongs to the secondary production of pipes.
Among them, the processing process of the hot-rolled seamless steel pipe is solid tube blank, perforation, extension, fixed diameter reduction, cooling, finishing. The processing process of welded pipe is plate and blank, forming (tubular), welding into tubes and finishing.
Steel pipe technical requirements and development trend
Usually, the steel pipe should have high corrosion resistance to a variety of corrosive media, good high temperature strength and low temperature toughness, and the processing technology and technical requirements in this area are also getting higher and higher. Secondly, the requirements of pipe product size (wall thickness accuracy) and shape accuracy also promote the continuous progress of online detection and automatic control technology. The requirement of reducing the cost of pipe products makes the production process develop to the direction of short flow and near final molding. In general, the trend of steel pipe quality requirements is, cheap, and low consumption.
