EXPERIMENTAL AND INVESTIGATION FOR IMPROVING LIFE OF SPARK PLUG USING Ni, Cr, Zn COATING

MECHANICAL ENGINEERING

The improvement of a high performance, long life Spark plug has become necessary in response to these condition. While improve performance (high ignitability and low required voltage), the emission part of the Spark plug needs to be reduced in size. But, in the past this has been hard because of the limitations in terms of wear. It has been difficult to achieve both smaller discharge parts and longer life. To forceful improve wear resistance, in this paper researched materials that are both resistant to oxidation and have a high melting point. This research resulted in our development of a various completion. Through this development it was able to produce a various coating that exceed the conventional platinum technology. The coating is now being used in high volume vehicle production. This paper is divided into the following three parts and describes the development of the new generation of coating spark plug. This paper discussed about the zinc,chromium and nickel Coating on the Spark Plug and to evaluate the Knoop Hardness and carbon deposition properties.

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