Page 44 - May
P. 44

NEW TECHNOLOGY

               Figure  2  shows  the  installation and  process  of  coating.  Equipment  for  plasma-spark
        coating consists of a block of equipment combined with a pulse generator, an electric vibrator
        and connecting cables. Table 1 shows the technical characteristics of this unit.



























                 a                                    b                                            c
        Fig. 2. Installation for plasma-spark coating (a), application wear-resistant coating made of VK8 alloy (b), application of an
        electrically conductive silver coating (c).




            Table 1. Characteristics of the installation for plasma-spark deposition of coatings.

         Power consumption, kW                                                                        0.5
         Mains supply voltage, V                                                                      220

         Pulse energy, J                                                                              0.11 – 10
         Pulse frequency, Hz                                                                          5 – 1600

         Electrode vibration frequency, Hz                                                            600
         Number of modes                                                                              70

         Overall dimensions of the generator, mm                                                      160х320х360
         Generator weight, kg                                                                         14

         Maximum coating thickness of alloy T15K6 on steel 45, microns                                500
         Height of irregularities of the profile of the coating Ra, microns                           2.0

                                              2
         Maximum productivity, cm / min                                                               15


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