发明名称 |
KONTROLLVORRICHTUNG FUER EXTRUDER. |
摘要 |
An extrusion process is controlled by feeding the material to be extruded from a supply station (5) to an extruder (1) and repeatedly weighing the supply station to calculate the throughput of the extruder. The initial line speed necessary to produce a predetermined weight/meter of extrudate is calculated and the line speed is adjusted accordingly. Subsequently, the throughput and the line speed are increased simultaneously, such that the weight/meter is maintained substantially constant until any one of a plurality of parameters such as line speed, screw speed, motor load current, extrudate temperature, melt pressure, etc reaches a predetermined maximum value. Thereafter either the line speed or extruder throughput is adjusted such as to maintain the weight/meter of the extrudate substantially constant at the desired value. |
申请公布号 |
DE3682312(D1) |
申请公布日期 |
1991.12.12 |
申请号 |
DE19863682312 |
申请日期 |
1986.02.28 |
申请人 |
BICC PLC, LONDON, GB |
发明人 |
TWIST, REGINALD JAMES, CUDDINGTON CHESHIRE, GB;HUGHES, JAMES HOWARD, UPTON CHESHIRE, GB |
分类号 |
B29C47/02;B29C44/60;B29C47/10;B29C47/88;B29C47/92;B29L31/34 |
主分类号 |
B29C47/02 |
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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