Title:
積層鋳型用レジンコーテッドサンド
Document Type and Number:
Japanese Patent JP4413851
Kind Code:
B2
Abstract:
To provide resin-coated sand for a multilayer mold in which the consolidation strength of the casting mold obtained by using it and gas permeability thereof are improved at the same time, the amount of occurrence of pyrolytic products (tar, soot and the like) derived from organic substances is effectively inhibited, when molding is performed using such a casting mold, and further, the casting mold after molding can exhibit excellent collapsibility. Disclosed is resin-coated sand for a multilayer mold, in which surfaces of refractory particles are coated with a binder composition containing a phenolic novolak resin having an ortho/para bond ratio of methylene groups of 1.5 or more and an aromatic amine as indispensable constituents, and the grain fineness number is from 80 to 150.
Inventors:
Hiroshi Furusawa
Masanori Totsuka
Naohisa Shibata
Masanori Totsuka
Naohisa Shibata
Application Number:
JP2005327245A
Publication Date:
February 10, 2010
Filing Date:
November 11, 2005
Export Citation:
Assignee:
Asahi Organic Material Co., Ltd.
Honda motor industry stock company
Honda motor industry stock company
International Classes:
B22C1/22; B22C1/00; B22C1/02
Domestic Patent References:
| JP2004090009A | ||||
| JP60184446A |
Attorney, Agent or Firm:
Michio Nakajima
Masahiro Nakashima
Masahiro Nakashima