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AssigneeDaikin Industries, Ltd.
InventorsHitoshi IMAMURA, Hiroyuki HAMADA, Eri MUKAI
Estimating the term…
A method for producing a tube, which includes: extruding a melt-fabricable fluororesin from a mold of an extruder into a form of a tube, leading the extruded melt-fabricable fluororesin to a cooling device to cool the extruded melt-fabricable fluororesin, and winding a resulting cooled tube onto a winding reel using a winding device. A gas is fed from a head end of the tube wound onto the winding reel into a hollow of the tube, the gas in the hollow is allowed to pass through a gas-introducing entrance of the mold and then through a gas-discharging hole of the mold to discharge the gas outside, thereby allowing the gas to flow along the hollow, and an internal pressure of the hollow is kept higher than atmospheric pressure and lower than 0.5 kgf/cm2.
A method for producing a tube, comprising:
An extruder comprising:
An extrusion mold for molding a melt-fabricable fluororesin into a form of a tube, comprising:
A winding device for winding a tube, comprising:
A winding device for winding a tube, comprising:
A tube with both ends thereof sealed, comprising a melt-fabricable fluororesin, wherein a gas that has passed through a filter is filled into a hollow of the tube.
Dependencies are inferred from the claim text.