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The need of the any fabrication industry is to evaluate the standard procedures of welding at the production flow and they want to check whether the processes are according to WPS (Welding Procedure Specification) or not.The book is about PQR (Procedure Qualification Record) according to ASME Sec. IX code.Readings of actual joints for different type of reactors (AE-Open type, CE-Closed type) with same joint and different size (i.e. 6300 Lit., 4000 Lit....) are taken. The record shows actual variable of processes.

Slag is produced in huge quantity in industry when scrap is very poor. Generally this slag thrown out and wasted. This slag has very high temperature and this heat is wasted in industry.book refers to slag utilization in various manners, like in backing of sand, producing steam, in dewaxing in investment casting and in various heat treatment processes.This slag can also be crushed and can be utilized in cement products.