PRODUCT

Lined with Polyurethane Series

Brief Introduction: This products have excellent features such as wear-resisting, acid resistant, anti-fouling, radiation resistant, antinydrolyzed aging, high elasticity, anti-mechanical shock and so on.

Product introduction

Polyurethane composite steel pipes are currently widely used in oceans, ferrous metal mines, non-ferrous metal mines, non-metallic mines, beneficiation process pipelines, tailings conveying pipelines, coal pipelines and ash removal system pipelines in thermal power plants, and petroleum, chemical, and cement, pipeline transportation in grain and other industries.

Features

Good wear resistance:

Due to the lining of polyurethane it has good elasticity. When hit from medium, the action of external force polyurethane to compression, when external force disappears, polyurethane is restorable. This feature greatly reduced the erosion that medium directly erosion to inner wall of pipeline. The wear life is more than ten times as much steel pipe.

Anti-scaling

Lined with the molecular structure, non-polarity status, no plasma adsorption of Ca2 +, Co32-, Hco30, OH, not form, no scale layer. The inner surface is smooth and flexible, it can prevent the adhesion of the incrustation, so it has better anti-scale and scale performance.

Small running resistance

Lining surface is smooth and transparent, the absolute roughness of the inner wall is 0.082, can reduce the running cost.

Good water resistance and good anti-aging

It is not like rubber products that will be affected by the phenomenon of swelling in water.

Good combination

Lining polyurethane and steel tube is closely combined with unique technology.

Technical Parameters

Performance Table

The test items

Common polyurethane test index

(nano-modified) polyurethane

Measurements

Tensile strength

15-21Mpa

19-28Mpa

GB528-2008

300% set the stretching  strength

8-10Mpa

11-13Mpa

GB528-2008

Tensile elongation

400-500%

400-500%

GB528-2008

Break permanent deformation

5-8

5-8

GB528-2008

The tear strength

5Mpa/cm3

6.8Mpa/cm3

GB528-2009

Shear strength

6Mpa/cm2

8.1Mpa/cm3

HB-853-1994

Avulsion intensity

7.5Mpa/cm2

116.8Mpa/cm3

GB1689-1994

Peel strength

1.4Mpa/2.5cm

2.1Mpa/2.5cm

GBI5254-1994

Akron abrasion

0.045cm3/1.61cm

0.008cm3/1.61cm

GB1689-1998

Low temperature brittleness

-42

-70

GBI682-2005

Hardness (shaw A)

60-100

60-100

GB531-2004

Density

1.12

1.2

GB533-2009

 

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