1. Process defects during valve casting (1) Hole defects, such as pores, shrinkage holes, porosity, slag holes, blisters and iron beans. They may expand into hidden dangers in use. Most of the pores are distributed on the surface of cast iron or near the surface, which are spherical or pear-shaped;

Dewar flask (tank) is a stainless steel pressure vessel with super vacuum insulation. It is designed for storing, transporting and using liquid oxygen, liquid nitrogen, liquid argon or carbon dioxide. These containers are manufactured according to the DOT4L standard and are used for reliable and eco

Soletair Power has designed, built and installed a new air filtration and purification system that removes harmful carbon dioxide from the air and turns it into useable fuel.The Finland-based company today announced the power to fuels production process which combines the air we breath out with ener

Gas shielded welding is a new welding process developed on the basis of the wide application of manual arc welding and submerged arc automatic welding. In the practice of gas shielded arc welding for many years, it has been found that replacing a single pure gas with a mixed gas as a shielding gas c

The University of Louisiana at Lafayette has received a $1m grant from the US Department of Energy (DOE) to develop a way to convert carbon dioxide (CO2) into ethylene, one of the world’s most widely used chemicals.Approximately 140 million metric tonnes of ethylene are produced annually worldwide.