Optimasi Proses Sand Blasting Terhadap Laju Korosi Hasil Pengecatan Baja Aisi 430

Abstract: Corrosion  is  naturally  occuring  phenomenon  and  will  be  exist  by  itself  in  the  metal.  The metal  will  be  damaged  by  an  electrochemical  reaction  with  its  environment  and  can  not eliminated but can do a variety of prevention efforts, such as by using a barrier layer that is in the  process  of  painting. In  the  process,  the  quality  of  painting  is  paint  adhesion  influenced  by surface  roughness.  The  preparation  can  be  done  by  themethod  of  spraying  a  sand  blasting abrasive  material  in  the  form  of  sand forced  into  the  surface  of  the  material.  sand  blasting process  could  make  the  paint  more  durable  and  more  resistant  to  corrosion.  The  parameter used  in  this  study  were  sand  blasting  spraying  pressure  i.e  4;4,5;5;5,5  bar,  sand  blasting spraying  angle  600;  750;  900. The  results  showed  that  the  greater  the  pressure  and  angle  of sand blasting, the corrosion rate is lower Average corrosion rate of the lowest occured at 5 bar spraying pressure and 900 spraying angle were 7.2157-E5; 7.1157-E5; 6.95-E5 mpy
Keywords: sand blasting, corrosion
Penulis: Putu Hadi Setyarini, Erwin Sulistyo
Kode Jurnal: jptmesindd110274

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