发明名称 |
VERFAHREN FÜR DEN EINSATZ IN DER GIESSEREITECHNIK |
摘要 |
Process for the rapid mfr. of sand moulds and cores for use in foundries comprises: (i) forming the mould and/or core using stepwise structure; (ii) computer-controlled selective heating a thin, planar moulding material layer using laser; (iii) repeating the selective radiating process for each freshly applied moulding material layer. The moulding material consists of: (a) a powdered, granular moulding base material from round, irregular moulded or angular splintery particles; and (b) a warm or hot hardenable binder. Component (a) is enclosed by component (b), or components (a) and (b) are mixed, and component (a) remains chemically inert during the above prodn. process. |
申请公布号 |
AT192367(T) |
申请公布日期 |
2000.05.15 |
申请号 |
AT19950922482T |
申请日期 |
1995.05.24 |
申请人 |
EOS GMBH ELECTRO OPTICAL SYSTEMS |
发明人 |
WENDT, FLORIAN, DR.-ING.;LANGER, HANS;WILKENING, CHRISTIAN;KELLER, PETER |
分类号 |
B22C1/22;B22C1/00;B22C1/02;B22C1/20;B22C9/02;B22C9/10;B22C9/12;B22C23/00;B22C25/00;B29C67/00;(IPC1-7):B22C7/02;B22C9/00 |
主分类号 |
B22C1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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