发明名称 COMPOSITE BILLET AND METHOD OF MANUFACTURING SAME FOR PRODUCTION OF CLAD PIPING AND TUBING
摘要 A method of forming clad piping or tubing includes the steps of providing a support billet, finished to a desired, predetermined dimension, having a cladding surface, and providing a CRA cladding material billet, similarly finished to a desired, predetermined dimension. The dimension of the CRA cladding material billet is predetermined such that the CRA cladding material fits onto a cladding surface of the support billet establishing an interface gap. Sealing the interface gap, evacuating the interface gap to form an assembly and Hot Iso-statically Pressing the assembly to metallurgically bond the CRA cladding material billet to the support billet to form a composite billet. The composite billet is extruded at high temperature to form the clad piping or tubing. The clad piping or tubing formed in also disclosed.
申请公布号 EP1436116(A4) 申请公布日期 2005.10.05
申请号 EP20020801643 申请日期 2002.10.01
申请人 CHAKRAVARTI MANAGEMENT, L.L.C. 发明人 CHAKRAVARTI, BHAVEN
分类号 B21C37/06;B21B15/00;B21C23/00;B21C23/08;B21C23/22;B21C37/15;B22D13/02;B23K20/00;B23K20/14;B23K101/06;B23K103/04;B23K103/08;B23K103/18;(IPC1-7):B23P17/00;B23K31/02;B23K1/20;B23P19/02;B21D39/04;B23P11/00;B21D39/00 主分类号 B21C37/06
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