Ignition switch contact lubrication problems:

     ※、The working current is large, and arcs are easily generated when the switch is turned on and off;

     ※、Ordinary grease is easily oxidized or even burned, and has no protective effect.

     ※、The durability life is poor, and it is difficult to meet the life requirements of 50,000 times or even longer.

  Solution:

     ※、Add antioxidant additives and metal passivators to reduce and prevent the oxidation reaction of contact metals;

     ※、Using perfluoropolyether base oil, it has excellent chemical and physical stability;

     ※、The switch requires a lower contact pressure drop, and the base oil with too thick oil film cannot be used.

Simulation bench experiment

Basic introduction:

※、The test bench system can perform durability tests on common switches in automobiles, such as ignition switches, car door lock cylinders, combination switches, rocker switches, key switches, rearview mirror switches, etc. Designed stand.

※、The test bench is divided into three stations, which can test a set of combination switches, a set of ignition switches and three sets of rocker switches at the same time. All three stations can simulate the load of the switch and monitor its voltage drop at any time. The change of the voltage drop can reflect the wear of the contact part of the switch point.