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发明名称
SHADOW MASK FOR COLOR PICTURE TUBE
摘要
니켈을 함유하는 철기합금기재로 되는 저열팽창계수 셰도우마스크에 있어서, 철기합금기재는 0.2%내력이 220∼300N/㎟이고, JISG0551에 의한 결정입도가 7.5 이하이며, X선회절법에 의해 측정한 각 면의 집적도가 20% 이하이고, 각 면의 집적도의 차가 20% 이하여서 프레스성형전에 어닐링처리를 하지 않고 프레스성형을 하여 제조한 브라운관용 셰도우마스크.
申请公布号
KR19990083599(A)
申请公布日期
1999.11.25
申请号
KR19990015413
申请日期
1999.04.29
申请人
null, null
发明人
마키타아키라;아오키타카히또
分类号
H01J9/14;C22C38/00;C22C38/08;H01J29/07
主分类号
H01J9/14
代理机构
代理人
主权项
地址
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