摘要:
In this invention, a back end portion of a preceding sheet bar and a front end of a succeeding sheet bar are cut in a transfer line at an entrance side of a finish rolling mill so that at least both side edge regions of these sheet bars are contacted with each other at a butted contact state thereof and a gap is formed between both end portions and then portions to be joined int he preceding and succeeding sheet bars are locally heated and pushed to join them while gradually enlarging a joining area, whereby the required time is largely reduced as compared with the conventional technique and also it is attempted to miniaturize the heating apparatus and shorten the length of the apparatus.
摘要:
In a corner reduction device for reducing side corners of a slab with corner rolls, a pair of upper and lower corner rolls are mounted inside a unitary unit frame, and a corner roll unit housing the unitary frame which is movable in the direction of width and vertical direction of the material is formed. Vertical position of the corner roll unit is controlled by a lifting power control cylinder through a push rod and position in direction of material width is controlled by a reduction cylinder. Driving of cylinder servo valves is controlled in accordance with position set values set by position setters, load set values set by load setters, and feedback signals from position sensors, thereby controlling the corner roll positions to fixed lateral and vertical positions. The driving of the servo valves is corrected according to values detected by cylinder pressure sensors, to evenly reduce the right and left corners of the material.
摘要:
In a sizing press for reducing by pressure width of hot slabs of both a low carbon steel and a stainless steel, the reduction by pressure of width is performed quickly without replacing the dies each time. Two or more types of dies having caliber configurations for respectively reducing the width at least of a low carbon steel and a stainless steel are disposed in layers and are retained in a manner capable of being displaced in an up and down direction. They may be replaced as a block with another block of stacked dies.
摘要:
According to one exemplary embodiment, a single crystal pulling-up apparatus of pulling-up silicon single crystals by a Czochralski method, is provided with: a neck diameter measuring portion which measures a diameter of a grown neck portion; a first compensation portion which outputs a first compensated pulling-up speed for the seed crystals based on a difference between a measured value of the diameter of the neck portion and a target value of the neck portion diameter previously stored; a second compensation portion which outputs a second pulling-up speed while limiting an upper limit of the first pulling-up speed to a first limit value; and a crucible rotation number compensation portion which lowers the number of a rotation of a crucible at least in a period where the upper limit of the first pulling-up speed is limited to the first limit value.
摘要:
An X-ray tube 1 is heated under an X-ray scan condition (tube voltage V, tube current I, exposure time width t) and thus a focal point is shifted. Artifact occurs in a reconstructed image due to the focal point shift. The present invention has an object to enable correction of the focal point shift caused by heating the tube. The applicant and inventor of this application has confirmed that the focal point shift amount of the tube 1 varies in accordance with whether it is in a heating direction or cooling direction when viewed from a past sequence. Therefore, the sequence record and the focal point shift amount based on the heating and cooling directions are stored as data in a storage device 13. A just near past sequence record when viewed from now is stored in a storage unit 16, and the tube temperature is detected by a tube temperature detector 15. On the basis of this temperature and the data in the storage unit 16, heating or cooling and the present accumulated heat capacity are determined in a determining unit 17, and the storage device 13 is accessed to determine a focal point shift amount. The position of the tube is corrected on the basis of this shift amount.
摘要:
A gradation image forming apparatus comprises a gradation data generation section. The gradation data generation section generates gradation data in each pixel of a gradation image based on at least one table of a reference color number corresponding to a pixel value of a reference color which is a start color of the gradation image, at least one table of a difference number corresponding to a difference in pixel values between adjacent pixels in the gradation image, and a pixel value of each pixel of the gradation image.
摘要:
Provided is an aqueous dispersion for nail enamel comprising a copolymer (E) having a weight-average molecular weight as determined by GPC of 1×104 to 4×104 as polystyrene, being obtainable by polymerizing a total of 100 wt parts a monomer (A) selected from tert-butyl(meth)acrylate, cyclohexyl (meth)acrylate and benzyl(meth)acrylate and another radical-polymerization unsaturated monomer (B) in an aqueous medium in the presence of 0.1 to 10.0 wt parts of a compound (HS—CH2—CH2—COO)n—R.
摘要:
A fill-up control valve structure includes a casing attached to a fuel tank, a float provided in a space defined in the casing so as to cause an up-and-down movement, a valve body provided at an upper portion of the float, a ventilation passage communicating with a downstream side of the valve body, and at least one first ventilation hole opened at a lower part of the casing to connect the inner space of the casing and the fuel tank to introduce fuel from the fuel tank into the space. Furthermore, at least one second ventilation hole is provided at an upper part of the casing to connect the inner space of the casing and the fuel tank. The hole size of second ventilation hole is smaller than that of the first ventilation hole.
摘要:
An AD/DA converter is equipped to the wireless communication device main unit side, and a transmission and reception base band filter is equipped to the wireless module side. Due to this arrangement, miniaturization and setting of the cost at a low level of the wireless module replaced for every communication system and the wireless communication device as a total become possible.
摘要:
An exhaust apparatus for and engine is mounted on a vehicle, which includes an engine compartment, a passenger compartment, a dash panel, which separates the engine compartment and the passenger compartment from each other, a floor panel of the passenger compartment, and a seat, which includes a bottom arranged on the floor panel. A recess is formed in the lower surface of the floor panel located below the bottom. The exhaust apparatus includes an exhaust passage, which extends from the engine compartment to below the floor panel, a catalytic converter located in the exhaust passage, and a muffler located in the exhaust passage. The catalytic converter is located forward of the dash panel. The muffler is accommodated in the recess. It is preferable that the seat be located at the front portion of the vehicle, the recess be located below the seat, and the muffler be accommodated in the recess.