摘要:
[Problems] To provide a process for producing a thermal sprayed, metal plated steel tube having a metal layer substantially uniform and favorable over the whole surface in a highly productive manner.[Means for solving] A process for producing a metal tube comprising continuously forming a metal plate composed of a first component into a tubular shape and continuously welding its butted ends to form the metal tube, wherein, after the continuous welding, a metal layer composed of a second component which is different from the first component is formed by thermal spraying directly over the surface of the metal tube, the metal layer having no discontinuities in the circumferential and lengthwise directions. Especially it is preferred that the process comprises a process step of making the thickness distribution of the metal layer more uniform after formation of the thermal sprayed metal layer over the external surface.
摘要:
A system and method for adjusting dipping time in a continuous steel pipe manufacturing line. The system manufactures a steel pipe of which inner and outer faces or any one face thereof is subjected to molten metal-plating from a steel sheet in a continuous manufacturing line, and includes an inner-face plating performing part for molten metal-plating by pouring molten metal to the upper side of the steel sheet corresponding to the inner face of the steel pipe, a steel pipe forming part that obtains a continuous steel pipe by continuously cold-forming the steel sheet subjected to the inner-face plating into a tubular shape and seam-welding a longitudinal end face joint portion of the steel sheet formed in the steel pipe, and an outer-face plating performing part for molten metal-plating by dipping the outer face of the steel pipe into the molten metal, in which a dipping length of the molten metal is adjusted in the inner-face plating performing part and/or the outer-face plating performing part.
摘要:
[Problems] To provide a process for producing a thermal sprayed, metal plated steel tube having a metal layer substantially uniform and favorable over the whole surface in a highly productive manner. [Means for solving] A process for producing a metal tube comprising continuously forming a metal plate composed of a first component into a tubular shape and continuously welding its butted ends to form the metal tube, wherein, after the continuous welding, a metal layer composed of a second component which is different from the first component is formed by thermal spraying directly over the surface of the metal tube, the metal layer having no discontinuities in the circumferential and lengthwise directions. Especially it is preferred that the process comprises a process step of making the thickness distribution of the metal layer more uniform after formation of the thermal sprayed metal layer over the external surface.
摘要:
A system and method for adjusting dipping time in a continuous steel pipe manufacturing line. The system manufactures a steel pipe of which inner and outer faces or any one face thereof is subjected to molten metal-plating from a steel sheet in a continuous manufacturing line, and includes an inner-face plating performing part for molten metal-plating by pouring molten metal to the upper side of the steel sheet corresponding to the inner face of the steel pipe, a steel pipe forming part that obtains a continuous steel pipe by continuously cold-forming the steel sheet subjected to the inner-face plating into a tubular shape and seam-welding a longitudinal end face joint portion of the steel sheet formed in the steel pipe, and an outer-face plating performing part for molten metal-plating by dipping the outer face of the steel pipe into the molten metal, in which a dipping length of the molten metal is adjusted in the inner-face plating performing part and/or the outer-face plating performing part.
摘要:
An elapsed cycle number during the predetermined period of the inputted clock source is counted using the clock reference signal as a yardstick, a frequency of the clock source is computed based on an elapsed cycle number obtained by counting, control timing of various interfaces relating to the CPU is adjusted and an interruption generating interval in which interruption is generated regularly by the CPU so that adjustment of control timing of various interfaces and setting of a timer interruption interval during the OS operation in accordance with a frequency of the clock source without performing OS modification such as rebuilding and the like.
摘要:
The object of the present invention is to provide an aluminum plate for fabrication which has an excellent formability, easy degrease after fabrication, coating properties, and less tendency of flawing, in which the aluminum plate for fabrication which is plated, and coated with a lubricant containing (A) a fatty acid ester of polyol, (B) an alkaline or alkaline metal salt of sulfonate, and (C) a controlling agent, and having saponification value of 20 or more.
摘要:
There are provided optical members having a microlens array structure that can be produced by a more simple process, as well as devices employing them. The optical members have on one main surface a microlens array formed using a replication process that employs a mold comprising a plurality of gas bubbles arranged on a replication surface. There are also provided devices that employ the optical members.
摘要:
A method for producing high-purity 2-cyanophenylboronic acid, characterized by reacting benzonitrile, lithium 2,2,6,6-tetramethylpiperidide, and trialkoxyborane, adding an aqueous acidic solution to a reaction solution containing the obtained 2-cyanophenylboronic acid, carrying out a contact treatment at a pH of below 7 in the presence of a water-immiscible organic solvent, and then obtaining the 2-cyanophenylboronic acid from the organic layer.
摘要:
A structured lighting material, an illuminator, and the method to generate incoherent luminescence wherein luminescent intensity increases superlinearly when excitation energy applied thereto through electron beam, electric charge, electric field or the like exceeds a threshold. In the present invention, the structured lighting material is easily made to have a minute uneven surface. This invention enables high-efficient lighting devices, sensors and memories owing to the superlinearity.
摘要:
A sheet forming method including the steps of: holding a blank between a blank holder and an opposing die so that wrinkling is prevented in the blank; and forming the blank to an objective shape with a punch, while imposing a force of a variable bead on the blank at a selected position in a point manner and only during a part of the entire forming period selectively. An apparatus for conducting the above method.