发明名称 |
MANUFACTURING METHOD FOR FLUID FEEDING PIPE |
摘要 |
PURPOSE:To blow mold integrally a plurality of indendent pipes by forming openings for molding a plurality of independent pipes on a mold, communicating parts of said openings each other, inserting parisons extruded from a head of a blow molding machine through said openings, and then blowing air in respective parisons. CONSTITUTION:An opening 8 for a main pipe and an opening 9 having a small diameter for a branch pipe are formed on molds 6 and 7. A communicating opening 34 for connecting said two openings 8 and 9 are formed. Air is blown into parisons 15 and 17 inserted through the openings 8 and 9 by means of blow pins 14 and 16 to carry out blow molding. The main pipes 1 and the branch pipe 2 are integrated through a spacer 13 and when said pipe is taken out of the metals 6 and 7, a pipe 3 combining the main and branch pipes consisting of the large diameter main pipe 1 and the small diameter branch pipe 2 heat fused to the spacer 13 integrally is manufactured. |
申请公布号 |
JPH02243323(A) |
申请公布日期 |
1990.09.27 |
申请号 |
JP19890243052 |
申请日期 |
1989.09.19 |
申请人 |
ISHIKAWAJIMA HARIMA HEAVY IND CO LTD |
发明人 |
UMEZAWA YOSHIMASA;SHIDARA YOSHIAKI;IWAWAKI AKIRA;ARAKI SATOSHI |
分类号 |
B29C49/04;B29C49/20;B29C49/48;B29L23/00 |
主分类号 |
B29C49/04 |
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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