Title:
低融点金属合金の成形方法
Document Type and Number:
Japanese Patent JP4289613
Kind Code:
B2
Abstract:
The present invention relates to a method of molding a low-melting-point metal alloy which exhibits thixotropy properties in a solid-phase and liquid-phase coexisting temperature region. In this method, a temperature of a heating holding cylinder is increased to a liquidus temperature or higher at the start of a molding operation. Then a remaining material in the preceding molding remaining in the heating holding cylinder in a solid state is wholly melted. After that a temperature of the heating holding cylinder is lowered to a temperature in the solid-phase and a liquid-phase coexisting temperature region. At the same time a molding material is supplied and a provisional molding is carried out. After the temperature has reached the solid-phase and liquid-phase coexisting temperature region, a regular molding is started. By the present invention a problem of a remaining material in the heating holding cylinder, which becomes a trouble at the start of molding by injection, is solved.
Inventors:
Kazuo Anzai
Koji Takei
Takashi Yamazaki
Koji Takei
Takashi Yamazaki
Application Number:
JP2004055055A
Publication Date:
July 01, 2009
Filing Date:
February 27, 2004
Export Citation:
Assignee:
Nissei Plastic Industry Co., Ltd.
International Classes:
B22D17/30; B22D17/00; B22D17/02; B22D17/08; B22D23/00; B22D25/00
Domestic Patent References:
| JP2001138025A | ||||
| JP9272945A | ||||
| JP200211559A |
Attorney, Agent or Firm:
Teruo Akimoto
Sowa Kato
Sowa Kato