Wearback Cast Basalt Lined Bends

Wearback Cast Basalt Lined Bends

Wearback Cast Basalt Lined Bends

 Wearback cast basalt lined bends with wearback arrangement offers better life as compared to normal wearcoat / cast basalt lined bends in pneumatic conveying system for fly ash, cement, coal etc where abrasion is more. Wearback cast basalt lined bends are composed of steel pipe tee, cast basalt pipe and cement mortar concrete. Wearback cast basalt lined bends are used too many industrial areas where the abrasive, chemical and hot materials transported and which are commonly lined steel elbows. At the same time cement mortar is selected as the filling material and this can make the inside surface of steel pipe in alkali mediums. So the surface of steel pipe generates purifying films these films can prevent being rusted.

Comparision Chart

Comparison of Ceramic lines with few other materials under standard conditions
MaterialThickness(mm)Approx life ( Months )
Mild Steel10
Cast Iron20
Ni-Hard20
Cast Basalt3020-25
Ceramic1035-40

Basalt is a dark, dense-looking rock, often with small porphyritic crystals, and weathering to a brown colour on exposed surfaces. It is the commonest of all lavas, the basalt flows of the world being estimated to have five times the volume of all other extrusive rocks together. Basalt also forms small intrusions.

Basalt casts are considered the best lining materials for industries dealing with abrasion resistance.

Chemical substance ( weight %) of cast basalt

SiO2Al2O2Fe2O3TiO2CaOMgOK2ONa2OFeOP2O5
43.13-41.1212.5-13.528.64-9.52.02-2.629.05-10.228.65-10.471.4-1.754.62-5.284.82-6.251.1-1.38

The excellent performance of cast basalt lined steel pipe is that it sets tenacity of steel pipe, abrasive resistance of cast basalt pipe, concreteness of cement mortar in one.

This greatly improves the products adaptive capacity in complicated operation conditions. At the same time. Cement mortar is selected as the filling material and this can make the inside surface of steel pipe in alkali mediums. So the surface of steel pipe generates purifying films. These films can prevent being rusted.

Physical performance of cast basalt products

CategoryAttribute
Density3g/cm3
Compressive Strength≥ 450MPa
Bending strength≥ 60MPa
Impact strength1.76KJ/M2
Abrasive strength0.07g/cm2
Vickers scale≥ 720kg/mm
Elasticity modulus1.67x105MPa
Dilatation coefficient (60℃)8.92x10-6
Chemical Attack Resistance
95%-98% H2SO4≥ 98%
20%H2S4≥ 94%
20 %NaOH≥ 98%

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