Title:
下型の製造方法、ガラスゴブの製造方法及びガラス成形体の製造方法
Document Type and Number:
Japanese Patent JP5347962
Kind Code:
B2
Abstract:
In one aspect, there is provided a process for manufacturing a lower mold for receiving a falling molten glass droplet, in which without narrowing the option for material for a lower mold, any occurrence of air retention can be favorably prevented and a lower mold excelling in durability can be obtained. The process comprises the film forming step of forming a coating layer on a base material and the surface roughening step of roughening the surface of the coating layer. Preferably, the coating layer contains at least one element selected from among chromium, aluminum and titanium.
Inventors:
Shunichi Hayami
Naoyuki Fukumoto
Naoyuki Fukumoto
Application Number:
JP2009525346A
Publication Date:
November 20, 2013
Filing Date:
July 22, 2008
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
C03B11/00; C03B11/08; G02B1/00
Domestic Patent References:
| JPH08217470A | 1996-08-27 | |||
| JP2754042B2 | 1998-05-20 | |||
| JP2820728B2 | 1998-11-05 | |||
| JPH08133762A | 1996-05-28 | |||
| JPH03137031A | 1991-06-11 |
Attorney, Agent or Firm:
Fukami patent office