ANALYSIS OF PHISICAL AND MECHANICAL PROPERTIES OF SPIRAL PUMPS AFTER THE APOLLINARIAN, ANODIZATION, RADIO-FREQUENSY PLASMA OF LOW PRESSURE
Methods of hardening of metals are considered. The analysis and comparison of the considered methods is carried out. The covering on a surface of an aluminium alloy by means of anodic treatment and an apollinarian, RF plasma of lowered pressure is received. As a result of covering formation on a surface improvement of physical and mechanical properties of metals and hardness increase is received.