The following disc diameters are available in molybdenum: 0.074", 0.078", 0.089", 0.120", 0.123", 0.158", 0.223", 0.236", 0.250", 0.310", 0.374", 0.499". Disc diameters in platinum are: 0.120" in .010" platinum and .078" in .020" platinum. Limited to available stock.
Every effort is made to hold to the following tolerances:
Hole roundness: within 2um
Hole size: -0 to +10% (Up to 50um) and -0 to +5% (Over 50um)
NOTE: Material, thickness, O.D. and hole size must be specified. Order by catalog number, giving hole size and outside diameter of disc. See chart for available sizes.
Standard Apertures
No. 11151: Molybdenum, 0.001" thick.
No. 11152: Molybdenum, 0.002" thick.
No. 11154: Molybdenum, 0.004" thick.
Platinum, 0.010" thick
No. 11165: 0.120" O.D.
Platinum, 0.020" thick
No. 11167: 0.078" O.D.
No. 13910: EFFA® Aperture Flamer
Platinum holder for flaming disc or strip apertures. Wooden handle.
6" long.
No. 12370: Aperture Cleaning Boat Kit
Holds special elongated tungsten boats for heat cleaning disc and strip
apertures where a vacuum is required. Includes three No. 12150 boats, threaded
support rod, braided lead, and instructions. Available with unthreaded
support rod.
No. 12380: Aperture Cleaning Boat Kit
Same as No. 12370, without support rod.
Note: To replace insulators on the above kits, order eight No. 12301 Ceramic Insulators.
No. 12150: Aperture Cleaning Boats
0.001" thick tungsten 50 x 5 x 2mm boat. Overall length: 75mm. Pkg/3.
