Question

why is it necessary to heat wet sand before heat zinc powder in upward delivery method

Answer 1

Answer:

Many heat treatment processes – including bright annealing, sintering, and carbonitriding – require a highly controlled atmosphere in order for the process to be successful. These processes are often used to manufacture mission-critical parts for industries such as aerospace, automotive, or petrochemical. The furnaces used in these processes must support a controlled atmosphere in order to achieve successful, high precision, repeatable results for these parts. These atmospheres may include inert gases such as nitrogen, helium, or argon; endothermic mixtures; or hydrogen. The focus of this article will be on inert atmospheres and hydrogen atmospheres, including the types of heat treatment processes they support.