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91. 发明专利

JPH064180B2 失效
公开(公告)号：JPH064180B2
公开(公告)日：1994-01-19
申请号：JP2510985
申请日：1985-02-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： MAEDA YASUHIRO
IPC分类号： B22C9/26 , B22C9/22 , B22D25/02

92. 发明专利

JPS63199045A METHOD FOR CASTING LONG-SIZED HOLLOW CASTING AND CORE 失效
公开(公告)号：JPS63199045A
公开(公告)日：1988-08-17
申请号：JP3029987
申请日：1987-02-12
申请人： HONDA MOTOR CO LTD
发明人： TAJIMA NOBUO , YOSHINAGA HIROSHI , NAGAOKA TADAO , KAWAGUCHI MASATOSHI , INOUE MASAHIRO
IPC分类号： B22C9/10 , B22C9/00 , B22C9/24 , B22C9/26
摘要： PURPOSE:To permit sure casting of a long-sized hollow casting provided with hole parts having high dimensional accuracy by forming a coating layer consisting of core sand on the outside peripheral face of a blinded and perforated pipe while a closing arbor is held inserted into said pipe, then exchanging the closing arbor with a reinforcing arbor, thereby constituting a core. CONSTITUTION:The perforated pipe 22 has many vent holes 27 penetrating the peripheral wall thereof on said wall and projecting parts 28 on the outside peripheral face thereof. The pipe has the through-hole which is blinded at one end and is opened at the other end. While the closing core 36 is fitted into such pipe 22 so as to close the respective vent holes 27, core sand is blown into a cavity 38 on the outside peripheral face of the perforated pipe 22 in a molding tool 37 to form the coating layer 25 around the pipe 22. The arbor 6 is thereafter removed and the reinforcing arbor 26 is fitted therein, by which the core 21 consisting of a tubular base body 24, a coated pipe 25 and the reinforcing arbor 26 is constituted. Such core 21 is positioned into a metallic mold 1 and a molten metal is guided from a lower gate 6 into the cavity 3, by which a cam shaft as the long-sized hollow casting is cast.

93. 发明专利

JPS6021021B2 失效
公开(公告)号：JPS6021021B2
公开(公告)日：1985-05-24
申请号：JP5557478
申请日：1978-05-12
申请人： HITACHI LTD
发明人： HAYASHI MASAKATSU , TANAKA TAKEO , AIZAWA TATSUSHI , NATORI TATSUO , KOJIMA SHIGERU
IPC分类号： B22D18/08 , B22C7/02 , B22C9/26 , B22D25/02 , F28D21/00 , F28F13/14 , F28F13/18

94. 发明专利

JPS586587B2 失效
公开(公告)号：JPS586587B2
公开(公告)日：1983-02-05
申请号：JP1484976
申请日：1976-02-16
申请人： HITACHI METALS LTD
发明人： SEKO SHOJI
IPC分类号： B22D31/00 , B22C9/00 , B22C9/08 , B22C9/24 , B22C9/26 , B22D25/02

95. 实用新型

JPS5813854U 失效
公开(公告)号：JPS5813854U
公开(公告)日：1983-01-28
申请号：JP9753481
申请日：1981-06-29
IPC分类号： B22C9/08 , B22C9/26

96. 发明专利

JPS5298617A PIPE FITTING CASTING BODY 失效
公开(公告)号：JPS5298617A
公开(公告)日：1977-08-18
申请号：JP1484976
申请日：1976-02-16
申请人： HITACHI METALS LTD
发明人： SEKO SHIYOUJI
IPC分类号： B22D31/00 , B22C9/00 , B22C9/08 , B22C9/24 , B22C9/26 , B22D25/02

97. 发明专利

JPS5084421A 失效
公开(公告)号：JPS5084421A
公开(公告)日：1975-07-08
申请号：JP13548673
申请日：1973-11-30
IPC分类号： B22D17/00 , B22C9/00 , B22C9/22 , B22C9/26 , B22D17/22

98. 发明专利

JPS4940227A 失效
公开(公告)号：JPS4940227A
公开(公告)日：1974-04-15
申请号：JP8553072
申请日：1972-08-26
IPC分类号： B22C9/26 , B22C13/00

99. 发明专利

JPH0567409B2 失效
公开(公告)号：JPH0567409B2
公开(公告)日：1993-09-24
申请号：JP10756383
申请日：1983-06-15
申请人： TOYOTA MOTOR CO LTD
发明人： FURUYA TAKEO , OOGA TOMIO
IPC分类号： B29C45/00 , B22C7/00 , B22C9/26 , B22C9/28 , B29B13/00 , B29C33/00 , B29C33/42 , B29C33/44 , B29C41/00 , B29C45/33 , B29C45/37 , B29C45/44 , B29L31/08

100. 发明专利

JPS6247617B2 失效
公开(公告)号：JPS6247617B2
公开(公告)日：1987-10-08
申请号：JP7741678
申请日：1978-06-28
申请人： HITACHI LTD
发明人： HAYASHI MASAKATSU , TANAKA TAKEO , AIZAWA TATSUSHI , NATORI TATSUO , KOJIMA SHIGERU
IPC分类号： B22D19/00 , B22C7/02 , B22C9/04 , B22C9/06 , B22C9/26 , B22D25/02 , F28F1/10 , F28F1/12 , F28F13/00

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