公开(公告)号：US5358575A

公开(公告)日：1994-10-25

申请号：US854856

申请日：1992-03-20

申请人： Hiroshige Nakagawa ,  Shigeo Yamamoto ,  Motokazu Ikeuchi ,  Yoshinori Yoshimura

发明人： Hiroshige Nakagawa ,  Shigeo Yamamoto ,  Motokazu Ikeuchi ,  Yoshinori Yoshimura

IPC分类号： C23C8/18 ,  C23C8/80 ,  H01J9/14 ,  C23C8/10

CPC分类号： H01J9/146 ,  C23C8/18 ,  C23C8/80

摘要： A mesh belt type blackening lehr comprising: a discharge duct provided at a predetermined position of a ceiling of a blackening zone, the temperature of which is kept at a blackening temperature. The blackening zone is divided into a charge side region and a discharge side region. The charge side region is kept in an atmosphere of mixture gas of air and humidification exothermic type gas so as to perform first processing for forming an oxide film consisting of Fe.sub.2 O.sub.3, Fe.sub.3 O.sub.4, and FeO. The discharge side region is kept in an atmosphere of humidification exothermic type gas so as to perform second processing for reducing Fe.sub.2 O.sub.3. Thus, an oxide film, consisting of mainly Fe.sub.3 O.sub.4, is formed on the surface of the shadow mask.

摘要翻译： 一种网带式黑化处理炉，其特征在于，包括：排出管道，其设置在黑化区域的顶部的预定位置，其温度保持在黑化温度。 黑化区域分为充电侧区域和放电侧区域。 将充电侧区域保持在空气和加湿放热型气体的混合气体的气氛中，以进行用于形成由Fe 2 O 3，Fe 3 O 4和FeO组成的氧化膜的第一处理。 放电侧区域保持在加湿放热型气体的气氛中，以进行还原Fe 2 O 3的第二处理。 因此，在荫罩的表面上形成主要由Fe 3 O 4构成的氧化物膜。