摘要:
An apparatus for joining substrates including a rotating drum. The drum may include an outer circumferential surface and a drum aperture in the drum outer circumferential surface. The drum may be configured to continuously advance substrates. A fluid nozzle may be moveably connected to the drum and located radially inward from the drum aperture. The fluid nozzle may be adapted to direct a fluid radially outward through the drum aperture toward the substrates. The fluid may have a temperature sufficient to at least partially melt the substrates. An anvil roll may be located adjacent the drum. The anvil roll may be adapted to rotate about an axis of rotation. A press member may be moveably connected to the drum and located radially inward from the drum aperture. The press member adapted to extend through the drum aperture to compress the substrates between the anvil roll to form a bond.
摘要:
A method and apparatus for producing labeled, plastic foam containers, such as a labeled EPS cup uses a heated pocket to thermally bond a label to a plastic cup. Also described is a labeled plastic foam container, such as a labeled EPS cup, having high quality printing capabilities, sufficient stiffness, acceptable insulation and barrier properties and reduced production cost.
摘要:
A lateral pipe-lining method for lining a lateral pipe that intersects a main pipe. A lateral pipe-lining material has a tubular resin-absorbing material impregnated with a curable resin and has a flange formed at one end thereof. The flange is disposed on an expandable flange-pressing implement. The expandable flange-pressing implement is expanded using a heat medium that is supplied by a first fluid source and that heats the flange of the lateral pipe-lining material to bring the flange into contact with a periphery of a lateral pipe opening of the main pipe. The lateral pipe-lining material is inserted into the lateral pipe using a fluid from a second fluid source different from the first fluid source, and the curable resin impregnated in the tubular resin-absorbing material is cured to line the lateral pipe.
摘要:
A heat staking apparatus includes a workpiece support and a moveable support plate having a planar surface spaced from the workpiece support. A plurality of extensible components are supported on the support plate by holders that slideably engage the planar surface in a manner allowing horizontal adjustment in an infinite number of directions within a given area on the plane. The extensible components include staking tools configured to heat stake a workpiece located on the workpiece support. The hot staking apparatus further includes a plurality of adjustable hot air heater assemblies, one for each extensible cylinder. Each hot air assembly includes a holder adjustably secured to the support plate. The holder includes opposing members, one of which is spring-loaded for removably releasably engaging and holding the respective hot air heater assembly.
摘要:
An improved idler roll is disclosed including a longitudinal cylinder having tubular walls sealed at the ends by flanged stub shafts. The interior of the idler roll is filled with ethylene glycol. The idler roll can be placed into rolling abutment with a heated surface, and when the idler roll is stopped for a period of time, the thermal distortion along the longitudinal length of the idler roll is minimal. When the idler roll is once again started, the fluid in the idler roll causes a forced convection heat transfer, evenly distributing the temperature of the idler roll, and thereby eliminating the thermal distortion.
摘要:
Heating apparatus for thermally bonding thermoplastic foil layers to produce a longitudinally welded seam. The heating apparatus comprises an elongated jaw element having a work surface for receiving the thermoplastic foils, at least two heating elements located within the jaw element and at least one temperature sensor associated with each of the heating elements. A control device is coupled to each of the heating elements and its respective temperature sensor to maintain the temperature of the jaw element at a value which will result in bonding of the foil layers. A regulating device is coupled to the control devices and to the temperature sensors for selectively operating the control devices to switch the heating elements in accordance with the temperature detected by the temperature sensor.
摘要:
Welding apparatus for plastic lining (5) in concrete tubing (4) comprises a centering carriage (6) movable inside the tubing along its length and fixable in position at a location adjacent a butt joint (51) having a seam to be welded. A carrier arm (10) is mounted for rotation about an axis (9) coincident with the axis of the tubing (4) for supporting a welding unit (14) at its outer end remote from the axis of the tubing. A drive source (15, 16) adjacent the welding unit engages the interior of the tubing and self propells the welding unit (14) and carrier arm (10) around the interior of the tubing (4). The welding unit (14) is biased outwardly towards the wall of the tubing and is guided along the welding seam by either a guide ring (21) or a roller (20) engaging a gap (48) between adjacent tubing sections. Several degrees of freedom are provided for accommodating lack of concentricity and translation of the welding unit along the length of the tubing without moving the centering carriage.
摘要:
Pressurized air is conveyed through a manifold into contact with the first member via apertures having hole diameters of from 0.8 to 2.5 mm that are spaced apart at a distance of from 10 to 30 mm along the manifold to achieve a turbulent air flow pattern with a Reynolds number of greater than 2200 at a temperature of between 150 and 315° C. and at an air pressure between 0.5 and 10 pounds per square inch (psi) over ambient pressure onto the outer surfaces of the first member and the second member for heat curing a curable adhesive between the members to achieve adhesive cure in 60 to 90 seconds and free of any bond-line read-out visible to an unaided normal human eye.
摘要:
An improved idler roll is disclosed including a longitudinal cylinder having tubular walls sealed at the ends by flanged stub shafts. The interior of the idler roll is filled with ethylene glycol. The idler roll can be placed into rolling abutment with a heated surface, and when the idler roll is stopped for a period of time, the thermal distortion along the longitudinal length of the idler roll is minimal. When the idler roll is once again started, the fluid in the idler roll causes a forced convection heat transfer, evenly distributing the temperature of the idler roll, and thereby eliminating the thermal distortion.