SHS Ceramic Steel Pipes

Self-propagating high-temperature synthesis () is a new technique for materialsynthesis. Synthetic materials using have characteristics of low energy consumption,short synthetic time, high production quantity, high product purity and no environmentalpollution. when combined with centrifugal technique can be used to produce ceramic-lined composite . It overcomes shortcomings of some traditional processes, such as low thickness ( conduits for cement, oil, and coal slurry.

SHS C-T ceramic-lined pipes were based on the Fe2O3+Al thermite reaction system.

The Manufacturing Process of Ceramic Lined Steel Pipe and :
SHS-self-propagating ceramic steel pipe and elbow create a new generation of abrasion and corrosion resistant engineering pipeline.The composite pipe is composed of three layers: ceramic, intermediate, and steel layers. The ceramic layer is formed by molten at a temperature above 2500 degree. The molten produced from the reaction Fe2O3+2Al=2Fe+ spreads on the inside wall of the steel pipe under the influence of a centrifugal force, then solidifies, so the ceramic layer has high density and smooth surface and bonds to the steel pipe.

Features and Advantages:

1). High Abrasion Resistant:
Vickers hardness of the corundum lining is HV1100 to1500, as high as that of tungsten-cobalt hard alloys, and the abrasion resistance is 20 times as carbon steel pipes. A composite elbow was used in a mining plant for about fifty thousands hours. The general service life of common steel elbow is about 700 hours.

2). Corrosion Resistant:
Corundum is a neutral material, and is acid-proof and fouling -free.

3). Heat Resistant:
Ceramic-lined composite steel pipe can work under circumstances of -50 to 800 degrees Celsius.

4). Lower Weight and Convenient Installation:
The ceramic-lined steel composite pipes are lighter than alloy pipes, cast iron pipes, and cast stone pipes and can be welded or connected through flanges, which reduces the expense of transportation and makes the pipes easier to install. For the pipes with the same sizes, types and length, the weight of ceramic pipe is about 1/2 of the wearable cast pipe’s, while the cost has reduced 10%~20% per meter. The weight of ceramic lined steel pipe is about 1/3 of the cast stone bent pipe’s, 1/2 of the cast stone straight pipe’s.

5). Lower Cost :
Ceramic-lined composite steel pipe can take place of expensive stainless steel, titanium, nickel, cast stone or alloy pipes. Extended service life can also reduce maintenance cost.

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