摘要:
For welding sheet-metal blanks coated with electrically conductive material, the thickness of the coating is measured with a measurement device. The welding current source controls the welding current I as a function of the film thickness reading obtained, to keep the power input into the weld zone essentially constant.
摘要:
A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.
摘要:
Monitoring systems in accordance with the disclosure store one or more reporting behavior profiles that include parameters that determine when a monitoring device associated with a shipping container initiates transmission of a status message to a remote location, e.g., an operations center, a government interface, or a commercial interface. At least a portion of the parameters of the reporting behavior profiles are dependent on a location of the monitoring system. The reporting behavior profiles can cause the monitoring device to initiate a message based on many conditions. For example, the report conditions can include when the present location deviates from a predetermined route of the reporting behavior profile, when the present location of the container remains unchanged for a certain time, when a security condition of the container changes, when an environmental condition of the container changes, etc.
摘要:
A monitoring device in accordance with the disclosure stores a serial number list in non-volatile memory, the serial number list including data indicative of at least one valid serial number associated with one or more key fobs permitted to interact with the monitoring device. The monitoring device is configured to receive a wakeup signal via a key fob interface configured to communicate with a key fob. The monitoring device reads a serial number from a key fob via the key fob interface and searches the stored serial number list for data indicative of a valid serial number matching the serial number read via the key fob interface. The monitoring device reads action data from the key fob via the key fob interface, the action data being indicative of an action to be taken by the monitoring device. The monitoring device, in response to the read serial number matching a valid serial number of the stored serial number list, takes an action based on the action data.
摘要:
An eyelid movement detector and communication system includes a first eyelid movement sensor for placement near a first eyelid of a first eye, and a second eyelid movement sensor for placement near a second eyelid of a second eye of a subject, wherein the first and second eyelid movement sensors detect movement of the first and second eyelids, respectively, and produce a first eyelid movement signal and a second eyelid movement signal in response to the movement detected. The system further includes a reference sensor located on the subject, and an amplifier for amplifying the eyelid movement signals of the first and second eyelids, wherein the signals are directed to a computer wherein the signals are processed and as a result, a function of the system may be activated.
摘要:
A self-drilling screw (10) has a first cutting edge (21) provided exclusively in a radially inner region of the drilling tip (12), extending at a first acute angle (α1) to the longitudinal axis (L), and a second cutting edge (22) provided in radially outer region of the drilling tip (12) and extending at a second acute angle (α2) to the longitudinal axis (L), with a first enveloping conical circumferential surface (A1) which is defined by the first cutting edge (21) corresponding, with a maximum deviation of +/−10%, to a second enveloping conical circumferential surface (A2) defined by the second cutting edge (22), and with the first acute angle (α1) corresponding, with a maximum deviation of +/−5°, to the second acute angle (α2).
摘要:
A chipless thread-forming screw (10) has a thread-carrying shank (11) provided at its opposite ends with a tip (13) and a head (4), respectively, and having a diameter between 0.25 and 0.35 mm, with the shank (11) having at least one frustroconical section (21) extending from the tip (13) in direction of the head (14) and having, with respect to the thread root (22), a point angle (α) between 200 and 300, and a cylindrical section (25) extending between the frustroconical section (21) and the head (14), and with a starting line (23) of the thread (15) remote from the head (14) being spaced from the tip (13) by a distance (Lt) from 0 to 0.3 mm.
摘要:
A self-drilling screw (10) has a thread-carrying shaft (11), a head (15) provided at one of its ends, and a drilling tip (12) provided at another of its ends, opposite the one end thereof, with the drilling tip (12) having first and second cutting edges (21, 22) and first and second chip channels (24, 25) associated with the first and second cutting edges (21, 22), respectively, beginning at first and second start points (26, 27) at the free end (14) of the drilling tip (12), and located on opposite first and second sides of the drilling tip (12), with the first and second start points (26, 27) being spaced from the center (Z) of the drilling tip (12) by a mean distance (X) corresponding to from 0.01 to 0.15 of the drilling tip diameter (D), and being spaced from each other by a maximum distance (Y) corresponding to from 0 to 0.8 of the mean distance (X).
摘要:
Monitoring systems in accordance with the disclosure store one or more reporting behavior profiles that include parameters that determine when a monitoring device associated with a shipping container initiates transmission of a status message to a remote location, e.g., an operations center, a government interface, or a commercial interface. At least a portion of the parameters of the reporting behavior profiles are dependent on a location of the monitoring system. The reporting behavior profiles can cause the monitoring device to initiate a message based on many conditions. For example, the report conditions can include when the present location deviates from a predetermined route of the reporting behavior profile, when the present location of the container remains unchanged for a certain time, when a security condition of the container changes, when an environmental condition of the container changes, etc.
摘要:
An apparatus for guiding can bodies in a laser welding machine is described. The apparatus comprises a water-cooled holding-down shoe (22) with an integrated holding-down roller (24), gas supply (64) and suction extraction (68), the holding-down roller (24) being disposed in front of the theoretical point of intersection of the two edges of the body to be butt-welded and being adjustable in height, with the holding-down shoe (22), to the thickness of the sheet metal. Adjacent to the holding-down shoe (22) is a holding-up shoe (26) and adjacent to the holding-down roller (24) is a holding-up roller (28). Provided below the holding-up shoe (26) is a horizontally and vertically adjustable supporting roller (30) which supports the can bodies at their underside during the welding operation and during passage through the welding plane (10). The bringing together of the edges of the bodies to be butt-welded, which emerge from the Z-rail, is effected by means of this apparatus without much friction and wear, the welding position is protected and any smoke formed during the welding is drawn off. As a result of the supporting roller, too close an adjustment of the conveying means is avoided, through which increased power requirements and wear in the guide range of the Z-rail would be caused.