摘要:
The occurrence of delayed fracture which is found in a hot worked martensitic stainless steel is prevented by subjecting the steel, after hot working and prior to heat treatment for hardening by quenching from a temperature of at least Ac1 point of the steel, to preliminary softening heat treatment under such conditions that the softening parameter P defined below is at least 15,400 and the softening temperature T is lower than the Ac1 point: P(softening parameter):P=T(20+log t) T: softening temperature [K] t: duration of softening treatment [Hr]. The present invention is particularly effective for a martensitic stainless steel having a steel composition in which the amount of effective dissolved C and N (=[C*+10N*]) where C* and N* are calculated by the following formulas is larger than 0.45: C*=C−[12{(Cr/52)×(6/23)}/10, and N*=N−[14{(V/51)+(Nb/93)}/10]−[14{(Ti/48)+(B/11)+(Al/27)}/10].
摘要:
The invention offers a magnesium alloy sheet having excellent warm plastic formability, a production method thereof, and a formed body produced by performing warm plastic forming on this sheet. The magnesium alloy sheet is produced by giving a predetermined strain to a rolled sheet RS that is not subjected to a heat treatment aiming at recrystallization. The sheet is not subjected to the foregoing heat treatment even after the giving of a strain. The strain is given through the process described below. A rolled sheet RS is heated in a heating furnace 10. The heated rolled sheet RS is passed between rollers 21 to give bending to the rolled sheet RS. The giving of a strain is performed such that the strain-given sheet has a half peak width of 0.20 deg or more and 0.59 deg or less in a (0004) diffraction peak in monochromatic X-ray diffraction. The alloy sheet exhibits high plastic deformability by forming continuous recrystallization during warm plastic forming through the use of the remaining strain.
摘要:
A tracking device is provided with a non-contact type displacement gauge, a positioner which moves a flaw detecting sensor within a plane perpendicular to an axial direction of a pipe or tube, and a positioning controller which controls the positioner. The positioning controller predicts a time until a portion of the pipe or tube whose displacement is measured by the displacement gauge reaches a predetermined position on a straight line extending in a Z-axis direction through a rotational center of the pipe or tube on the basis of the positional relationship between the displacement gauge and the flaw detecting sensor and a rotational speed of the pipe or tube; controls the positioner on the basis of the displacement measured by the displacement gauge and an operational delay time of the positioner in such a manner that the relative position of the flaw detecting sensor to the pipe or tube after the lapse of the predicted time becomes substantially constant in the Z-axis direction; and moves the flaw detecting sensor along the Z-axis direction. The positioning controller performs the same control in an X-axis direction.
摘要:
The dicing machine includes a rotary blade with a rotating shaft, applicable to processing a work, and a disk-shaped presser rotatably supported by the rotating shaft on a side of the blade, so as to roll on an upper face of the work independently from the blade.
摘要:
Disclosed herein is an electronic device having a display section, which may include, a housing section configured to house a plurality of batteries, a detection section configured to detect status of each of the plurality of batteries housed in the housing section, a selection section configured to select part of the plurality of batteries for use as a power supply of the electronic device in accordance with the status detected by the detection section, and a display control section configured to display on the display section an indication identifying the part of the plurality of batteries.
摘要:
The present invention provides a multilayer tube for transferring a smoke-curing liquid to food, in which the tube has an innermost layer comprising a polyamide resin and a crosslinked polyvinylpyrrolidone; a packaged food product, in which the food product has been packaged in the multilayer tube for transferring a smoke-curing liquid to food; and a method for producing a smoked food using the multilayer tube for transferring a smoke-curing liquid to food.
摘要:
There is realized a control device capable of speeding up an output response without causing deterioration in the resolution of a time-proportional output. The control device controls a control object at a ratio of ON-time to OFF-time for a time-proportional output. The control device comprises a PID computation unit for executing PID computation of deviation between a set value and a measured value from the control object, an integrator for sequentially adding up control output values each representing the result of the PID computation executed by the PID computation unit, an ON/OFF determination unit for determining whether the time-proportional output is turned ON or OFF on the basis of an integrated value of the integrator, and a time-proportional output unit for turning the time-proportional output ON/OFF on the basis of a determination value of the ON/OFF determination unit.
摘要翻译:实现了能够加速输出响应而不会导致时间比例输出的分辨率劣化的控制装置。 控制装置以时间比例输出的导通时间与截止时间的比率来控制控制对象。 该控制装置包括:PID计算单元,用于执行从控制对象的设定值和测量值之间的偏差的PID计算;积分器,用于顺序地将表示由PID计算单元执行的PID计算的结果的控制输出值相加 一个ON / OFF确定单元,用于根据积分器的积分值确定时间比例输出是ON还是OFF;以及一个时间比例输出单元,用于在时间比例输出ON ON / OFF确定单元的确定值的基础。
摘要:
A double-row self-aligning roller bearing includes left and right rows of rollers 4 and 5, arranged between an inner race 2 and an outer race 3. A raceway surface 3a of the outer race 3 represents a spherical shape and the rollers 4 and 5 have an outer peripheral surface following the shape of the raceway surface 3a of the outer race 3. The rollers 4 and 5 of the left and right roller rows have respective lengths L1 and L2 different from each other. Also, the left and right roller rows have respective contact angles θ1 and θ2 different from each other.
摘要:
In a crankshaft of an in-line four-cylinder engine, an arm that is closest to a flywheel has a greater average thickness in a direction of the rotation axis of the crankshaft than those of other arms. Two of the arms that are coupled to both sides of the third journal from the flywheel each have a center of gravity closer to its own counterweight compared to the centers of gravity of the arms that face the two arms with corresponding crankpins in between. Accordingly, the rigidity against torsional deformation and the thickness of oil films on the journals are reliably maintained while suppressing increase in the weight of the entire crankshaft.
摘要:
The invention solves the inconvenience that a customer would experience when his/her electronic wallet was lost or broken down. A backup condition testing means tests predefined backup conditions to determine whether to make a backup, when an electronic wallet device communicates with any other device to transfer monetary data. When the backup condition testing means has determined to make a backup, a backup data sending means sends a predetermined set of backup data collected from the electronic wallet device. A backup data management means receives the backup data from the backup data sending means and saves the received data into its backup database. In this way, the proposed system automatically saves backup data of the electronic wallet device when any backup condition is met. This mechanism permits the customer to have an alternative electronic wallet device to be promptly issued when his/her electronic wallet device is lost.