摘要:
A plurality of cutting tips are mounted on the distal end of the cylindrical main body of a drilling tool for performing trepanning. These tips are disposed along the circumferential direction of the main body and equidistantly spaced apart from one another. The force, which is produced by all of the cutting tips and acting at right angles to the axis of the main body, is smaller than the component of the cutting force, which is produced by each tip and acting at right angles to the axis of the main body. The cutting widths of the tips in the radial direction of the main body are substantially equal. One of the tips, which is located at an intermediate position in the radial direction, has a V-shaped leading portion.
摘要:
According to an embodiment, a power transmitting device includes a power supply unit, a power transmitting coil, a first switch, a piezoelectric element, and a first switch controller. The power supply unit is configured to generate a transmission power by using power supplied to a power input terminal. Once the first switch is turned on, the first switch electrically connects an external power supply and the power input terminal until the first switch is turned off next time. The piezoelectric element is disposed at a position at which a weight of a placed power receiving device can be detected. The piezoelectric element is configured to generate a detection power according to the weight of the placed power receiving device. The first switch controller is configured to generate a starting power by the detection power and switches the first switch to on by using the starting power.
摘要:
A semiconductor device includes a circuit substrate, a first semiconductor chip disposed on the circuit substrate, a plurality of first spacers disposed on the first semiconductor chip, a second semiconductor chip which includes a first adhesive agent layer on a lower face thereof and is disposed on upper portions of the plurality of spacers, a wire which connects the circuit substrate to the first semiconductor chip, and a first sealing material which seals a gap between the first semiconductor chip and the first adhesive agent layer, wherein each height of the plurality of the first spacers is greater than height of the wire relative to an upper face of the first semiconductor chip.
摘要:
The invention provides a robot including a connection member relatively displaceably connected, and configured to control the displacement of the connection member based on a reference posture that can be adjusted, the robot including: a light emitting unit to emit a laser beam in a predetermined direction; a light receiving unit to receive the laser beam when the connection member is located in a detection posture that is away, by a preset displacement amount, from a predetermined zero posture; and a zeroing unit to relatively displace the connection member so as to make the light receiving unit receive the laser beam, and then to adjust the reference posture to the zero posture based on the posture of the connection member when the laser beam is received as well as on a relationship between the zero posture and the detection posture.
摘要:
A method for making a phosphate-treated galvanized steel sheet, including forming a phosphate film on the surface of a galvanized layer of a galvanized steel sheet using a phosphate treatment solution containing Zn2+ and Mg2+ so as to satisfy 2.0
摘要:
The object of the present invention is to provide a mandrel mill capable of producing a seamless pipe without flaws such as necking. The mandrel mill of the present invention includes a plurality of consecutively provided grooved-roll stands and a mandrel bar 3 provided in a roll groove array formed by the grooved-roll stands so as to continuously elongate a hollow shell 2. Roll grooves 4 of at least a first stand and a second stand are arranged so as to satisfy conditions represented by the following formulas (1) to (4): b≦10a+1.5 (1) b≧10a−0.2 (2) b≦−a+1.5 (3) b≧−a+1.15 (4) wherein a=S/R1, b=C/(R1−S).
摘要翻译:本发明的目的是提供一种能够生产无缺陷的无缝管的芯棒式无缝管,例如颈缩。 本发明的芯棒式无缝管轧机包括多个连续设置的带槽辊架和由凹槽辊架形成的辊槽阵列中的芯棒3,以便连续拉长中空壳体2。 布置最少的第一支架和第二支架以满足由下列公式(1)至(4)表示的条件:b≦̸ 10a + 1.5(1)b≥10a-0.2(2)b≦̸ -a + 1.5 (3)b≥-a + 1.15(4)其中a = S / R1,b = C /(R1-S)。
摘要:
A flaw detection apparatus and flaw detection method for automatically detecting the occurrence of a flaw in a mother tube manufactured by rolling a hollow shell using a mandrel mill are provided. A flaw detection apparatus (100) according to the present invention includes a wall thickness gauge (1) which is installed on the exit side of a mandrel mill (M) and which measures the tube wall thickness in each of the reducing directions of a hollow shell (P) in the #1-#5 stands of the mandrel mill, rolling load measuring devices (2) which measure the rolling load in the #1-#5 stands, and a decision unit (3) which determines whether there are flaws in the mother tube based on the measured value of the tube wall thickness in each of the reducing directions of the hollow shell (P) and the measured value of the rolling load in each stand. The decision unit (3) determines that a flaw has occurred in the mother tube when the measured value of the tube wall thickness in any of the reducing direction in the #1-#5 stands locally varies by at least a predetermined amount and the measured value of the rolling load in any of the #1-#5 stands locally varies by at least a predetermined amount.
摘要:
To conduct conversation without confusion in a virtual space while sharing a plurality of topics, send origin channel #CHOCOA, destination channel #meeting and message sending conditions are correlated and given to a chat server or chat client. If, for example, “USER1, USER3, USER4” are designated as sending conditions, only messages from designated users are sent from message origin channel #CHOCOA to destination channel #meeting. Meanwhile, messages from “USER1, USER3, USER4” can be displayed on message origin channel #CHOCOA or not displayed.
摘要:
A surface-treated steel sheet has a zinc-based or an aluminum-based plated steel sheet, a surface-treatment coating being formed on the surface of the zinc-based or aluminum-based steel sheet by applying and drying a surface treatment coating composition thereon, and a top coating being formed by applying and drying a coating composition for top coating on the surface-treatment coating. The surface treatment coating composition contains a water-epoxy resin dispersion, a water dispersed polyurethane resin, a silane coupling agent, and phosphoric acid and/or a hexafluorometal acid. The coating composition for a top coating contains a high molecular weight epoxy group-containing resin average molecular weight of 6,000 to 20,000.
摘要:
A notification is sent to a group of information terminals that conduct simultaneous communication by participating in a channel. The status change notification system includes a database DB and monitoring means 1. The DB is disposed outside the channel. The monitoring means 1 monitors an occurrence of a status change in the DB, and generates a notification of a status change when a status change occurs. At least one of the group of information terminals includes notifying means 3. The notifying means 3 receives a notification of status change from the monitoring means 1. The notifying means sends the notification to other of the group of information terminals to notify of the status change in a broadcasting manner.