The new repair technology the spiral heat exchangers

Effect of Chemical Composition on Hard Deposits Properties in the Case of Weld Refurbishment of Heavy Crushing Hammers

“…The hardfacing on a manganese steel piece should be done with great care, using a filler material to achieve high mechanical, impact and abrasion resistance properties that have chemical, metallurgical and mechanical compatibility with the supporting material [16,22]. For the application presented in this research paper, three filler materials wire-type were chosen for the hardfacing by welding using GMAW process.…”

“…The heavy hammers are exposed to various types of mechanical stresses such as: impact, compression, stretching, friction, bending, wear etc., but major effects on the use characteristics have the dynamic impact in rotation combined with the severe abrasion caused by the friction with the stone breaks [22][23][24]. As a result of these stresses, after a certain period of use, the wear of some work areas occurs, requiring either the replacement of the used parts with new ones or the refurbishment through welding loads [15][16][17][18][19][20][21][22].…”