| 1. |
Ultrasonic cleaning is
very effective. If ultrasonics are not available, cleaning with a soft bristle
brush is acceptable. Use a heated detergent to remove excess dirt and grease.
Heavy duty cleaners with high pH can be used provided the MACOR® is
not exposed for extended periods (greater than one hour). |
| 2. |
Following the detergent
wash, the MACOR® is rinsed in clean water. |
| 3. |
Final rinse can be
isopropyl alcohol 70% minimum or acetone to promote drying. If necessary an
organic degreaser can be used prior to final cleaning. |
| 4. |
When washing and rinsing
avoid sudden temperature changes when going from bath to bath. |
 |
|
Bake Out MACOR® Machinable
Glass Ceramic
|
|
| 1. |
Heat MACOR®
to 100°C (212°F) over the projected use temperature (do not exceed 1000°C). |
| 2. |
Reduce pressure to below
the projected use vacuum level. |
| 3. |
Hold at temperature and
vacuum for one hour. |
|
Annealing MACOR® Machinable
Glass Ceramic
|
|
| 1. |
Usually not required.
Anneal if thin slices warp or heating and cooling rates above 300°C/hour are
expected. |
| 2. |
Heat at 200°C/hour
(360°F/hour) maximum to 750°C (1380°F). |
| 3. |
Hold for two hours. |
| 4. |
Cool at
25°C/hour (45°F/hour).
|
