发明名称 |
Continuous extrusion apparatus |
摘要 |
Continuous extrusion apparatus for the production of copper tubing having a rotatable wheel formed with a plurality of circumferential grooves registering with (as shown in FIG. 1) abutments 4 formed on a die top 2. Respective exit apertures 6 each have a cross-sectional area of between two and five times the radial cross-section of the associated groove and lead to a passage 8 smoothly diverging to connect into an extrusion die chamber 10 housing an annular extrusion die (not shown). The appartus produces an extrudate in the form of a continuous, seamless, copper tube having a mass in excess of 500 kilograms extruded at a temperature of approximately 750 degrees Celsius.
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申请公布号 |
US2002121121(A1) |
申请公布日期 |
2002.09.05 |
申请号 |
US20020086634 |
申请日期 |
2002.03.04 |
申请人 |
DAWSON JOHN;HAWKES DANIEL JOHN;JONES PHILLIP A.;LAIDLOW STEPHEN JAMES |
发明人 |
DAWSON JOHN;HAWKES DANIEL JOHN;JONES PHILLIP A.;LAIDLOW STEPHEN JAMES |
分类号 |
B21C23/21;B21C23/00;B21C23/08;B21C25/02;(IPC1-7):B21C23/00 |
主分类号 |
B21C23/21 |
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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