| 摘要 |
A melt spinning apparatus is disclosed which includes a spin block and a spinning nozzle assembly which is threadedly joined to the spin block. Also, an axially movable protective tube is disposed coaxially at the outlet end of the spinning nozzle assembly, and the upper end of the tube mounts casing assembly means in the form of a rotatable flat plate or an annular ring, for engaging the nozzle assembly and thereby facilitating threaded assembly of the nozzle assembly to the block as well as disassembly of the nozzle assembly from the block.
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