Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1989-12-29
1992-08-04
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 14, 264 17, 264 19, 264 406, 2642977, 425143, 4251744, B29C 3508
Patent
active
051356864
ABSTRACT:
A method to continuousky harden light-curable resins, by irradiating at least one shaped article made of a light-curable resin by continuously moving the article past a multiplicity of light sources while changing the flux of the irradiated light in multiple steps corresponding to the moving positions of the object and an apparatus to accomplish this method including means to continuously move the article relative to the multiple irradiation sources and means to adjust the flux density in multiple steps corresponding to the moving positions of the article. Specifically, the flux density of the light irradiated on the moving article is changed stepwide depending upon the position and the location of the article and the polymerization speed of the article and the hardening depth can be controlled in relation to its position and time.
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Kimura Shusuke
Komiya Shigeo
Masuhara Eiichi
Nakajima Kensuke
Nishiyama Noboru
Japan Institute of Advanced Dentistry
Thurlow Jeffery
Vargot Mathieu
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