DEVELOPMENT OF REFRACTORY THICKNESS METER FOR TORPEDO LADLE CAR |
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| Yoshito Isei, Tatsuro Honda, Kenichi Akahane, Hideyuki Takahashi |
- Abstract:
- To inspect the refractory of torpedo ladle car at high temperature is effective in expanding its service life and reducing its maintenance cost, preventing metal break out. As to metal impact area, the refractory thickness could not be inspected by thermal analysis of outer steel shell. The refractory thickness meter was installed at torpedo repair shop for evaluating its measurement stability and refractory thickness measurement accuracy. It has two surface profile maters using laser rangefinder equipped with two tilt stages, facing each other. It measures the inner refractory profile and the outer steel shell profile at one time to calculate the accurate refractory thickness without influence of the outer shell deformation. After 90 minutes from discharging molten iron, it could achieve stable measurement without the influence of fume and heat haze, and could measure the refractory thickness with a good accuracy of 7.3mm (1 sigma).
- Keywords:
- torpedo ladle, laser surface profiler, refractory thickness
- Download:
- IMEKO-WC-2009-TC14-060.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009