Productive process Basalt stones are smelted by high temperature and then become magma. Pour the magma into rotary furnace. In rotary furnace, the magma takes initial impurities precipitation and gas floatation. Then, they enter into a big casting ladle. The magma takes initial impurities precipitation and gas floatation again in the ladle. After that, they are poured into moulds which have been preheated. The magma take shapes quickly in the moulds. For removing the products` internal stress, they are put into tunnel annealing kilns. After 24hours, they are out of the kilns and put outside.
Cast basalt pipes are been taken shapes by centrifugal casting.
Cast basalt lined steel pipe Cast basalt lined steel pipe is consisted of steel pipe, cement mortar and cast basalt pipe. The excellent performance of cast basalt lined steel pipe is that it sets the tenacity of steel pipe, abrasive resistance of cast basalt pipe and concreteness of cement mortar in one. This greatly improves the products` adaptability in complicated operation conditions. We can connect the pipes by flange, easy-flexible joints or by welding.
It may be used as the liner of pipeline for hydraulic / pneumatic conveyance of abrasive / corrosion materials or slurry. We can offer the basalt cylinder with nominal diameter of 40mm~800mm.