摘要:
A truing method for a chamfering grindstone for performing chamfering work on a peripheral edge of a plate-shaped object, comprising the steps of: performing chamfering work on a truing grindstone with a master grindstone having a desired groove shape and forming a peripheral edge shape of the truing grindstone into a desired chamfered shape; and transferring the groove shape of the master grindstone onto the chamfering grindstone by performing grooving work on the chamfering grindstone with the chamfered truing grindstone to form the groove in the desired shape on the chamfering grindstone.
摘要:
An apparatus for pointing twist drill bits includes a processing unit which has a rotary index plate on which are mounted a plurality, e.g., five, of drill bit holders which are circumferentially spaced apart at equal, e.g., 72-degree intervals, and a loading unit which has located adjacent to the index plate a rotary pedestal on which are mounted an equal number of transfer arms. Located around the periphery of the processing unit and loading unit are a plurality of processing stations and loading unit operation stations, respectively. Under computer control, the index plate and pedestal are periodically rotated non-simultaneously in opposite directions and stopped for predetermined time periods during which sensors and actuators cause drill bits to be loaded from a container located at an input/output station onto a loading unit arm, cleaned, transferred to a drill bit holder, sequentially processed at processing stations, including a point grinding station, transferred back to a loading unit arm, discharged to a defectives container if defective, have a collar ring adjusted, and returned to the input/output station for discharge to a transport container. Prior to and after a grinding process, each drill bit is cleaned by a dirt removal apparatus which uses a plastically deformable body, preferably a toroidal roller which is pivoted into contact with a drill bit point, causing the point to pierce the body and transfer dirt thereto, the body is then pivoted away from the point with dirt adhered to the body.
摘要:
The moving direction of the wire line 15A at the cut portion 44 for cutting the columnar semiconductor ingot 18 corresponds to the vertical-downward direction. And, the semiconductor ingot 18 supported with the cut-feed means 20 is fed horizontally so as to be pushed in perpendicular to said wire line 15A, and the processing liquid 42 is supplied to the wire line 15A from the grind liquid supply nozzle 40 placed at the upper side of the cut portion 44. Therefore, the processing liquid 42 supplied to the wire line 15A flows along the wire line 15A, so that the processing liquid 42 can be surely supplied to the cut portion 44.
摘要:
Picking up means pick up a wafer from a first cassette one by one and carry the wafer to a pre-processing means. The wafer is picked up from the pre-processing means after the measuring and deciding the position has been completed in the pre-processing means. First carrying means receives the wafer from the picking up means and resets the position of the wafer. The first carrying means mounts the wafer on the wafer table of the first chamfering means in the case that the first chamfering part is not chamfering the wafer. The first carrying means carries the wafer and mounts it on the second wafer table of the second chamfering means in the case that the first chamfering part is chamfering the wafer.
摘要:
A slicing machine for slicing an ingot using a rotary blade that maintains the inner peripheral cutting edge of the blade in a highly rigid state. The slicing machine slices the ingot into thin pieces by use of an inner peripheral cutting edge of a doughnut-shaped rotary blade in which an axial force is applied to the blade prior to slicing in order to displace the blade in an axial direction. The inner peripheral cutting edge of the blade is kept rigid and the ingot is sliced accurately. The displacement of the blade is stored and controlled by a control unit.
摘要:
This invention relates to a method of forming a solid foundation in soft ground or stratum by mixing chemical agent into the soft ground soil to solidify it. This ground reforming method comprises the steps of driving a casing into the soft stratum to be reformed so that the casing encloses a volume of earth, moving the enclosed soil out of the casing, mixing and kneading the chemical hardener with the removed soil, then returning the mixed and kneaded soil into the casing, and finally pulling the casing up. The columnar piles thus formed of consolidated soil provide a solid foundation in the soft soil stratum, either independently or in combination. The columnar piles built up according to the method of this invention have uniform and high dynamic strength.
摘要:
A pickup according to a present embodiment is used for a stringed instrument and converts a vibration of a string into an electric signal. The pickup includes a piezoelectric sensor that includes at least one piezoelectric element that is provided corresponding to the number of strings, a first electrode arranged on a string side of the piezoelectric element, and a second electrode arranged on an opposite side of the first electrode, a wiring electrically connected to the piezoelectric sensor, a protection part covering a portion where the piezoelectric sensor comes in contact with the string, and a cap that is formed integrally with the protection part, and comprises an arm part locked to the stringed instrument together with the string.
摘要:
A pickup according to a present embodiment is used for a stringed instrument and converts a vibration of a string into an electric signal. The pickup includes a piezoelectric sensor that includes at least one piezoelectric element that is provided corresponding to the number of strings, a first electrode arranged on a string side of the piezoelectric element, and a second electrode arranged on an opposite side of the first electrode, a wiring electrically connected to the piezoelectric sensor, a protection part covering a portion where the piezoelectric sensor comes in contact with the string, and a cap that is formed integrally with the protection part, and comprises an arm part locked to the stringed instrument together with the string.
摘要:
An external medicine of the present invention includes a gel composition or an ointment composition, each of which contains sirolimus and/or a derivative thereof. Accordingly, provided is an external medicine which enables sirolimus, in an amount sufficient to treat a skin disease, to be absorbed into an affected part without causing a side effect.
摘要:
A drill case (10) includes a case box (20) having a longitudinally elongated rectangular cross-sectional shape closeable at one transverse end thereof by a lid (23). The case includes a slidably removable longitudinally elongated drill stand base (50) having in the upper surface thereof a plurality of longitudinally disposed, laterally spaced apart grooves (51) for receiving rectangular block-shaped drill stands (60) having longitudinally spaced apart vertical bores (61) for receiving drill bits (1). Stand base (50) has protruding outwardly from opposite lateral sides thereof a pair of parallel longitudinally disposed ribs (52) which are slidably receivable in a pair of upper or lower grooves (27) and (28) formed in the inner side walls of box (20), depending on whether short or long shank drill bits are contained in stands (60). Case (10) includes a shank retainer (70) for protecting the tips, including the cutting lips and points, of drill bits in drill stands (60), the retainer having through its thickness dimension a plurality of longitudinally and vertically disposed grooves (72) for receiving the tips of drill bits. Retainer (70) has a front end provided with a transversely disposed, front upper web (73F), and a rear end having a rear lower web (73R). Grooves (72) in retainer (70) have tapered lower entrance openings (90) for receiving the tapered transition section (5) between a drill bit shank (3) and tip (2), and cylindrical upper entrance openings (89) for receiving the shanks of drill bits. Two pairs of longitudinally disposed ribs (74) protruding from both upper and lower edges of retainer (70) are engageable with grooves (30) in box (20) with the retainer in either an upright or inverted position, thus configuring the case with tapered entrance openings facing downward to receive tapered transition sections of drill bits and thereby limit their movement, or with the cylindrical openings facing downward to receive the shanks of bits provided with insertion depth limiting rings.