公开(公告)号：US20020073736A1

公开(公告)日：2002-06-20

申请号：US10045463

申请日：2001-11-07

Applicant: U.S. Philips Corporation

Inventor： Wilhelmus N.M. Selten ,  Martinus P.W. Van Roosmalen ,  Hermanus N. Tuin

IPC: C03B011/10

CPC classification number: C03B11/06

Abstract: A method and device for the manufacture of a hollow cone (37) with a cone tip (31) whereby a parison of viscous material (35) is moulded into the shape of the hollow cone. An escape space (11) becomes accessible to the material in the vicinity of a cone tip to be formed. The moment the pressure present in the material in the vicinity of the cone tip to be formed exceeds a previously defined value. Breaking-off of the cone tip during or after moulding is prevented by this. The hollow cone is suitable inter alia for use in a cathode ray tube.

Abstract translation: 一种用于制造具有锥形尖端（31）的空心锥体（37）的方法和装置，由此将粘性材料（35）的型坯模制成中空锥体的形状。 逃逸空间（11）可以在要形成的锥形尖端附近的材料上进入。 存在于要形成的锥尖附近的材料中的压力超过预先定义的值。 通过这种方式防止在模制期间或之后锥形尖端的断裂。 中空圆锥体尤其适用于阴极射线管。

公开(公告)号：US20010013231A1

公开(公告)日：2001-08-16

申请号：US09757877

申请日：2001-01-10

Applicant: U.S. Philips Corporation

Inventor： Wilhelmus N.M. Selten ,  Martinus P.W. Van Roosmalen ,  Hermanus N. Tuin

IPC: C03B040/04 ,  C03B011/10

CPC classification number: C03B11/06

Abstract: A method and device for the manufacture of a hollow cone (37) with a cone tip (31) whereby a parison of viscous material (35) is molded into the shape of the hollow cone. An escape space (11) becomes accessible to the material in the vicinity of a cone tip to be formed. The moment the pressure present in the material in the vicinity of the cone tip to be formed exceeds a previously defined value. Breaking-off of the cone tip during or after molding is prevented by this. The hollow cone is suitable inter alia for use in a cathode ray tube.

Abstract translation: 一种用于制造具有锥形尖端（31）的空心锥体（37）的方法和装置，由此将粘性材料（35）的型坯模制成中空锥体的形状。 逃逸空间（11）可以在要形成的锥形尖端附近的材料上进入。 存在于要形成的锥尖附近的材料中的压力超过预先定义的值。 通过这种方式防止在模制期间或之后锥形尖端的断裂。 中空圆锥体尤其适用于阴极射线管。