发明名称 |
METHOD OF MANUFACTURING EXHAUST VALVE FOR VESSEL ENGINE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing an exhaust valve for a vessel engine having high durability to bear even a high load in a diesel engine of a large-scale vessel. <P>SOLUTION: The method includes: build-up welding a welding material that consists of a Ni-Cr-Al-system Ni-base age-precipitated alloy overlaying for two or more times to cover the tip of a round steel bar material (S2); then, hot-die forging a tip to shape an umbrella part while adjusting the structure of a welding part (S3); and applying a solution heat treatment (S4) and an age-precipitation heat treatment (S5). <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013046928(A) |
申请公布日期 |
2013.03.07 |
申请号 |
JP20120161610 |
申请日期 |
2012.07.20 |
申请人 |
DAIDO STEEL CO LTD |
发明人 |
HORIO KOJI;HARA OSAMU;SUZUKI YOSHITO;MASUNAGA ATSURO |
分类号 |
B21K1/24;B23K9/00;B23K9/04;B23K31/00;B23K35/30;C22C19/05;C22C27/06;C22C38/00;C22C38/54;F01L3/02;F01L3/24 |
主分类号 |
B21K1/24 |
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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