Khulna University of Engineering & Technology

kuet ch 1105 engineering chemistry split pattern single piece pattern disadvantages of disposable patterns advantages of disposable patterns disposable pattern disadvantages of removable patterns advantages of removable patterns removable pattern classifications of patterns pattern components of a mould advantages of casting disadvantages of casting basic requirements of casting: akib jabed shovon me 1107 manufacturing process casting akib jabed shovon de khulna university of engineering & technology mechanical engineering casting sbr silicon rubber butyl rubber chloroprene isoprene neoprene raw materials of synthetic rubber difference between plastic & rubber sources of rubber vulcanizing agents vulcanizing method curing vulcanizing elastomer synthetic rubber compoundings natural rubber thermosetting thermoplastic step growth polymerization sgp polymerization polymer ionic addition polymerization free radical addition polymerization degree of polymerization condesation polymerization classifications of polymer chain growth polymerization cgp addition polymerization metal inert gas welding tungsten inert gas welding mig tig welding defects solid phase welding resistance welding fusion welding plastic welding spot welding thermit welding projection welding seam welding flash welding butt welding weldability brazing welding process manufacturing