For sealing a test space in a workpiece having at least one open end face having a flat surface with one or more indentations in the workpiece, a sealing mat having a planar basic body and one or more arcuate sealing elements can be used. The sealing mat is placed onto the surface of the open workpiece end face such that the arcuate sealing elements of the sealing mat protrude into the indentations in the workpiece to then press the basic body of the sealing mat against the surface of the open workpiece end face with a pressing force in a direction perpendicular to the flat surface and press the arcuate sealing elements into the indentations with pressing forces in several directions radial to the arcuate shape of the sealing elements.

There is provided an apparatus 1 that includes a pair of molds 10a and 10b that press together, heat, and weld an overlapping part of a plurality of film-like members, a pair of heater blocks 20a and 20b that respectively support the pair of molds; a plurality of first support blocks 37 that are connected via a plurality of rod-like members 50, which midway include parts that restrict transmission of heat, to one heater block 20a; a plurality of second support blocks 38 that are connected via the plurality of rod-like members to the other heater block 20b; and a driving mechanism 60 that changes, via the support blocks, a gap between the pair of molds to press together the film-like members. The plurality of first support blocks include at least one movable support block 39 including a mechanism 35 that moves in a first direction relative to the driving mechanism corresponding to thermal deformation in the first direction of the heater block to be supported, and the plurality of second support blocks include at least one movable support block 39.

An optical head for a laser transmission welding apparatus comprising a housing with an end on the outlet side with respect to a laser beam and a ball mounted in the housing. The ball may comprise a material whose refractive index is higher than the refractive index of quartz glass.

Composite fabrication system and associated methods. In one embodiment, a composite fabrication system comprises a molding tool that includes a forming surface at least partially disposed within a constrained space, and a foamable material that expands inside of the constrained space to form an expanded material that presses a layup of one or more composite layers against the molding tool. The composite fabrication system further comprises a curing device configured to cure the layup to form a composite part, and a cutting wire embedded in the constrained space that is heated and configured to cut the expanded material into pieces that are removable from the constrained space.

The present invention relates to a sealing device for a secondary battery. The sealing device is configured to seal a battery case accommodating an electrode assembly therein to manufacture the secondary battery, the sealing device including a sealing block configured to press a sealing portion of the battery case, a flatness adjusting part configured to adjust a flatness of a pressing surface of the sealing block, and a heater part configured to transfer heat to the sealing block to thermally fuse the sealing portion of the battery case when the sealing portion is pressed by the sealing block.

A cutting, or crimping, apparatus having first and second opposed jaw members which are mounted on a frame and are movable relative to each other from a first axial position to a second axial position along an axis so as to respectively cut, or crimp, wrapping material extending between adjacent articles wherein at least one of the jaw members is rotatably mounted to the frame such that it is rotatable from a first rotational position to a second rotational position, in the first rotational position the jaw members are movable relative to each other along a first said axis and in the second rotational position the jaw members are movable relative to each other along a second said axis that is inclined relative to the first axis.

The present invention concerns an ultrasonic vibration unit having a converter (1) for converting an electric ac voltage into a mechanical ultrasonic vibration and a sonotrode which is vibrationally coupled to the converter (1), wherein the sonotrode and the converter (1) are matched to each other in such a way that the ultrasonic vibration unit can vibrate with a natural frequency f, in which a standing longitudinal wave having at least one vibration node and at least two vibration antinodes is formed within the ultrasonic vibration unit. To provide an ultrasonic vibration unit in which the parasitic vibrations which usually occur in operation with a working frequency are slight or do not occur, wherein at the same time the actual working frequency is not attenuated, it is proposed according to the invention that there is provided a damp vibration absorber unit (2) connected to the ultrasonic vibration unit by way of a coupling element (3), wherein the coupling element (3) is connected to the ultrasonic vibration unit at a vibration node, wherein the vibration absorber unit (2) is connected to a damping element (4) which is so adapted that it damps a vibration of the vibration absorber unit (2).

An ultrasonic processing system (1) which comprises an ultrasonic vibrator (10) having an ultrasonic sonotrode (30) and a working surface (31) for ultrasonic processing of a workpiece. The vibrator (10) comprises a longitudinal axis (L), an enclosed cavity (32, 51) extends along the longitudinal axis at least in the sonotrode (30), a medium inlet (52) through which a cooling medium is fed into the cavity (32, 51), at least one vortex generator (53) which arranged between the medium inlet (52) and the cavity (32, 51) such that a swirl motion of the medium is generated inside the cavity (32, 51) around the longitudinal axis. A cooling channel (34) is fluidly connected to the enclosed cavity (32, 51) to guide the medium in the vicinity of the working surface (31) such that the working surface (31) is cooled. A first medium outlet (33) is fluidly connected to the cooling channel (34).

There is provided an apparatus 1 that includes a pair of molds 10a and 10b that press together, heat, and weld an overlapping part of a plurality of film-like members, a pair of heater blocks 20a and 20b that respectively support the pair of molds; a plurality of first support blocks 37 that are connected via a plurality of rod-like members 50, which midway include parts that restrict transmission of heat, to one heater block 20a; a plurality of second support blocks 38 that are connected via the plurality of rod-like members to the other heater block 20b; and a driving mechanism 60 that changes, via the support blocks, a gap between the pair of molds to press together the film-like members. The plurality of first support blocks include at least one movable support block 39 including a mechanism 35 that moves in a first direction relative to the driving mechanism corresponding to thermal deformation in the first direction of the heater block to be supported, and the plurality of second support blocks include at least one movable support block 39.

In a vertical vibration joining apparatus where a resonator having a vibrator on one end side is horizontally attached to a supporting tool capable of ascending and descending, the resonator includes a cross horn of a cross shape in a front view and two boosters, the cross horn is for converting acoustic vibration transmitted from the vibrator from vibration in a lateral direction to vibration in a vertical direction orthogonal to the lateral direction, two boosters are provided at both ends of a pair of projection portions of the cross horn in the lateral direction, and portions to be supported to the supporting tool are coaxially and integrally provided on two boosters by bending outer peripheral faces of the boosters at minimum vibration amplitude points of vibration in the lateral direction resonating with the acoustic vibration transmitted from the vibrator outside in a diametrical direction to project the same annularly.