31.08.2014 Views

ASNT Level III- Visual & Optical Testing

My Level III Self Study Notes Reading 4 Section 4B

My Level III Self Study Notes Reading 4 Section 4B

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

6.3.4 Process Control Applications<br />

A gas tight seal is needed to prevent leakage of combustion gases through<br />

the glass portion of a spark plug. To obtain optimum fusion properties, it is<br />

important to know and control the temperature inside the ceramic insulator<br />

and this can be done using a temperature indicating pellet. Sample insulators<br />

are loaded with pellets and processed with production parts. Information<br />

obtained from analyzing the samples is used to adjust furnace conveyor<br />

speed and temperature.<br />

Charlie Chong/ Fion Zhang

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!