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Polycrystal ceramic tube (PCA tube) for Ceramic Metal Halide Lamp (CMH lamp
Polycrystal ceramic tube (PCA tube) for Ceramic Metal Halide Lamp (CMH lamp)
The design of PCA shape, is the first step to be considered in the production.
It is not only to ensure that molding is easy, also to meet the requirements of
arc tube packaging and lifetime. Based on the study of the theory of the
foreign latest technology, we got a certain understanding about the complex
process of plasma discharge when CMH working, then simulated modeling
experiment through computer, balanced the relationship between forming and
lifetime. We caculated and designed PCA diameter, electrode tube length, R
radian and thickness, and fully considered discharge inside volume, internal
surface area and wall load, finalized the dimensions of our PCA.
Model a b c d e f g h j
k1/k2 m1/m2 Internal surface area Wall load
M5-150 52.2±0.2 22.24 6.75 13.0±0.15 3.0±0.1
1.0+0.05 0.90±0.1 6.50 2.00 ≤1.2 ≤0.3 647 23.18
M6-250 63.0±0.2 29.00 8.44 16.5±0.15 3.8±0.1
1.5+0.05 0.95±0.1 8.21 3.50 ≤1.2 ≤0.3 1074 23.28
M7-315 69.0±0.2 29.50 6.52 18.5±0.15 4.0±0.1
1.6+0.05 1.00±0.1 9.21 3.80 ≤1.2 ≤0.3 1213 25.97
Average particle size 15~30um
Total translucency 35W≥92%
Impurity Fe ≤10ppm
PCA tube, PCA for CMH lamp, polycrystal ceramic tube for CMH, PCA for Ceramic
Metal Halide Lamp,
Minimum Order: 1000 pieces
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SOURCE: Import-Export Bulletin Board (http://www.imexbb.com/)
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