Welding shoe, plastic welding shoe extruder, method for producing a plastic welded seam
OwnerFranz-Josef Herzinventor
Life of this patent
Estimating the term…
Abstract
A welding shoe, a plastic welding extruder, which has a conveying device, a housing for the conveying device, a melting chamber, a welding shoe and/or a nozzle device, and a method for producing a plastic welded seam by means of a plastic welding extruder wherein a ceramic is used at least partly as a material of construction, as a result of which contamination of the melted material and wear are avoided and an increase in the temperature of the composition becomes possible, so that highly fluorinated plastics (PTFE (Teflon), FEP (hexafluoropropylene copolymer), PFA (perfluoroalkoxyalkane) or the like, high-tech plastics or the like can be processed.
Claims11
Welding shoe for a plastic welding extruder for producing a welded seam (filet seam, X seam, film seam, V seam, corner seam, or the like) comprising:
- a device for connecting the welding shoe to an opening of the plastic welding extruder, through which melted material is discharged,
- at least one channel for passing the melted material through the welding shoe, the channel corresponding with the opening of the plastic welding extruder through which the melted material is discharged,
- at least one outlet opening for the melted material, and
- a guide which is required for the welded seam, wherein the material of the welding shoe is a ceramic.
A plastic welding extruder comprising:
- a melting chamber for melting material,
- a driving mechanism for a conveying device in a housing for supplying melted material to the melting chamber,
- a welding shoe for discharging the melted material for forming a welded seam on the joint parts which are to be welded, and
- a nozzle device, through which a gaseous medium can flow in order to heat the joint parts,
- wherein the material of the conveying device, of the housing of the conveying device, of the melting chamber, of the welding shoe and/or of the nozzle device is at least partially a ceramic.
Method for producing a plastic welded seam by means of a plastic welding extruder, especially for avoiding contamination of the melted material in the case of an otherwise conventional method, a plastic welding extruder is used, a conveying device, a housing of the conveying device, a melting chamber, a welding shoe and/or a nozzle device of which is at least partially a ceramic.
Dependencies are inferred from the claim text.