An apparatus and a process can be used for packaging a product wherein a plastic film is tightly applied to a support. The plastic film is positioned above the support by means of a transport system; moreover, a stop structure or plate is active on the film portion present in the packaging station to efficiently hold the same.

The present invention refers to an apparatus and process for packaging a product wherein a plastic film is tightly applied to a support. The plastic film is positioned above the support by means of a transport system; moreover, a stop structure or plate is active on the film portion present in the packaging station for enabling to efficiently hold the same.

In a method for manufacturing a honeycomb core by a domed bonding layer, a bonding sheet is, upon bonding of each cell, heated with hot air to form a uniform bonding layer on an end surface of each honeycomb cell, thereby providing a lightweight honeycomb core having stable strength. In the method for manufacturing the honeycomb core, a technique including the doming step of pumping, when bonding molding is performed for a core in which multiple ribs are connected to form an assembly of cells by means of a flat thermally-weldable bonding sheet laid on an upper surface of the core, upward hot air upwardly into the cells to form a dome-shaped bonding layer at the bonding sheet on an upper surface of each cell, the rupturing step of pumping downward hot air from above to the vicinity of the top of the dome-shaped bonding layer to rupture the bonding layer, and the thermal welding step of forming a uniform bonding layer on upper edge portions of the cells by means of meltability and surface tension.

In a method for manufacturing a honeycomb core by a domed bonding layer, a bonding sheet is, upon bonding of each cell, heated with hot air to form a uniform bonding layer on an end surface of each honeycomb cell, thereby providing a lightweight honeycomb core having stable strength. In the method for manufacturing the honeycomb core, a technique including the doming step of pumping, when bonding molding is performed for a core in which multiple ribs are connected to form an assembly of cells by means of a flat thermally-weldable bonding sheet laid on an upper surface of the core, upward hot air upwardly into the cells to form a dome-shaped bonding layer at the bonding sheet on an upper surface of each cell, the rupturing step of pumping downward hot air from above to the vicinity of the top of the dome-shaped bonding layer to rupture the bonding layer, and the thermal welding step of forming a uniform bonding layer on upper edge portions of the cells by means of meltability and surface tension.

In a manufacturing method of an assembly, the assembly including a metal part and a pipe, the pipe including a material containing a resin, an adhesive is first adhered to an outer circumferential surface of the pipe and a metal part covering at least a portion of an outer circumferential surface of the pipe. Here, an area to which the adhesive is adhered on the outer circumferential surface of the pipe is defined as an adhesion area. Next, by a heat source provided inside the pipe, a target area is heated without interposing the metal part. The target area is located radially interior to the adhesion area and located on an inner circumferential surface of the pipe.

A method is provided for producing a common connecting opening in two components, at least one of which is made from a plastically deformable material. In the method, at least the edge region of a first prefabricated opening of the first component is softened in order subsequently to introduce a mandrel which displaces the material softened by the heating so that a common connecting opening having a predetermined diameter is obtained.

A plastic laminated structure includes a plate member of plate-shaped fiber-reinforced plastic and a core member of trapezoidal-wave-shaped fiber-reinforced plastic. The plate member includes a thermoplastic resin and reinforcing fibers embedded in the thermoplastic resin. The core member is thermally bonded to the plate member, and includes a thermoplastic resin and reinforcing fibers that is embedded in the thermoplastic resin. A part of or the entire area of a main surface of the plate member includes smooth and rough surfaces. The rough surface has larger roughness than the smooth surface. The smooth and rough surfaces are alternately arranged in stripes.

The invention provides a method of forming a wind turbine blade. The blade has a main blade module that defines a main body of the blade and includes a first mating feature, e.g. a tongue. The blade also includes a separate edge module that defines at least part of a trailing edge of the blade and includes a second mating feature, e.g. a recess. The method includes applying an adhesive to at least one of the first mating feature and the second mating feature. The method includes arranging the separate edge module relative to the main blade module such that the first and second mating features are mutually adjacent. The method includes applying a pressure force to squeeze the adhesive to bond the first and second mating features together. The pressure force is caused by removing air from, or injecting air into, an air sealed region.

Methods are provided for joining a composite component, such as a rotor blade of a wind turbine. Accordingly, a first blade segment is provided and a bladder assembly is positioned thereon. Additionally, an adhesive element is positioned in a first position on the first blade segment. A second blade segment is positioned with the first blade segment so as to define an inner cavity therebetween. The inner cavity contains the adhesive element and the bladder assembly, but the adhesive element does not contact the second blade segment while in the first position. The bladder assembly is inflated to transition the adhesive element to a second position in contact with both the first blade segment and the second blade segment. With the adhesive element in contact with both blade segments, the adhesive element is allowed to cure in order to secure the blade segments to one another.

Methods are provided for joining a composite component, such as a rotor blade of a wind turbine. Accordingly, a first blade segment is provided and a bladder assembly is positioned thereon. Additionally, an adhesive element is positioned in a first position on the first blade segment. A second blade segment is positioned with the first blade segment so as to define an inner cavity therebetween. The inner cavity contains the adhesive element and the bladder assembly, but the adhesive element does not contact the second blade segment while in the first position. The bladder assembly is inflated to transition the adhesive element to a second position in contact with both the first blade segment and the second blade segment. With the adhesive element in contact with both blade segments, the adhesive element is allowed to cure in order to secure the blade segments to one another.