The invention relates to a method for the application of heating mats (10) on a wing/blade of a wind power station or other devices for the purpose of achieving deicing also during operation when necessary. Temperature measurement and de-icing take place by means of pulsed current to the heating mat (10). The invention also relates to an arrangement.

A thermoplastic plastic nut includes a nut main section having a second thread to screw a first thread of a bolt; and a thin wall section weldable to the first thread and disposed to protrude upwardly from the nut main section. A material of the nut main section contains a thermoplastic resin and a material of the thin wall section contains the thermoplastic resin. Thus, a thermoplastic plastic nut, a nut welding device and a nut welding method are provided to make it possible to easily prevent the loosening of the nut.

A system and method for welding thermoplastic components by positioning and moving a heated plate between the components to melt their respective faying surfaces, and as the plate moves, pressing the components together so that the melted faying surfaces bond together as they cool and re-solidify, thereby creating a composite structure. The plate has a heated portion which is positioned between and heated to melt a portion of the first and second faying surfaces. A manipulator mechanism moves the plate along an interface from between the portion to between a series of subsequent portions of the first and second faying surfaces, thereby welding the thermoplastic components along the entire interface to create the composite structure. The heated portion may contact the faying surfaces and melt them through conduction, or may be suspended between them and melt them through radiation and convection.

Sensors incorporated within a waveguide detect a laser light output from at least a laser delivery optical fiber to provide in situ feedback of the laser light intensity detected by the sensor. The sensors may detect laser light directly from the laser delivery optical fiber or as reflected back from a plurality of work pieces during a weld cycle. In various aspects, the feedback provided from the sensors is used to control the laser light intensity or to alert an operator that the laser light intensity is below a predetermined parameter.

Plastic parts are welded with a true 3D volumetric weld using intersecting multi-beam trace laser welding in which a plurality of spot laser beams having the same wavelength are directed to the so that the laser beams intersect each other at a point along a weld path within one of the plastic parts at an angle in an intersection angle range between ten degrees and ninety degrees. The plurality of laser beams are traced so that the intersection of the plurality of laser beams traces along the weld path to form a weld pattern that is linear, curvilinear, planar or three dimensional along a joint that is inside a volume of plastic. The plastic part in which the laser beams intersect is partially absorptive to laser light at a wavelength and the laser beams have this wavelength.

A rubber member for laser bonding of the present invention containing a rubber ingredient and silica, wherein the silica has an average particle size of more than 50 nm and 120 nm or less, and the amount of the silica is 10 parts by mass to 50 parts by mass based on 100 parts by mass of the rubber ingredient, the rubber member has a laser light transmittance of 30% or more, provided that the laser light transmittance is a transmittance when the rubber member has a thickness of 2 mm and is irradiated with laser light having a wavelength of 808 nm. The silica preferably includes silica having an average particle size of more than 50 nm and 120 nm or less and silica having an average particle size of 5 nm to 50 nm, and the amount of the silica having an average particle size of more than 50 nm and 120 nm or less is 10 parts by mass to 50 parts by mass based on 100 parts by mass of the rubber ingredient and the amount of the silica having an average particle size of 5 nm to 50 nm is 10 parts by mass to 50 parts by mass based on 100 parts by mass of the rubber ingredient.

A film fin sealing device is disclosed herein which may have a groove defining a base. The base of the groove of the fin sealing device may be oriented at a skewed angle with respect to a longitudinal direction of the conveyor of a heat sealing machine. Edges of a thermoplastic sheet or two stacked layers of thermoplastic sheets are introduced into the groove of the film fin sealing device and placed in contact therewith to both heat and fuse the distal edge portions of the thermoplastic sheet(s) to join the edge portions thereof to form a fin seal.

A novel spring-loaded device utilizes a linear or rotary measuring sensor to measure distance and control heat using a PID loop or other type of control loop feedback program. The power of the heating element is controlled by a program, which takes distance from the target into consideration when determining output power. For example, if the target distance is 10 mm away the algorithm will apply 100% power until reaching 9 mm, at which point it will lower power to 90%. When the distance is 5 mm from the target, the power level will be 50%, and so on and so forth. The closed loop nature of the system will reduce power automatically using pulse width modulation (PWM) of the input power. This will allow modulation of the power to the heating element on the fly.

The invention relates to improvements of a heating means particularly in a vertical flow-wrapper.

Disclosed is a high-speed soft capsule forming machine comprising: a sheet forming part for forming two gelatin sheets; a pair of die rolls for heat sealing the gelatin sheets and simultaneously forming the same into a capsule shape; a wedge positioned at the upper sides of the pair of die rolls, heating the gelatin sheets at a predetermined temperature, and having a plurality of nozzles, which are formed to be aligned therein, for receiving liquid medicine from a liquid medicine feeding part and respectively injecting the same between the gelatin sheets inserted into cavities of the pair of die rolls; and a controller for controlling the rotational speed of the die rolls, the temperature of the wedge, the rotational speed and temperature of a cooling drum, and the intervals of nozzle operations for injecting the liquid medicine according to the angle of the nozzles formed in the wedge with respect to the center of the die roll and a set number value of lines in which the nozzles are aligned.