Nkk Corporation

Tokyo Electric Power Company Holdings, Inc.

Learonal Japan Inc.

Mikiyuki Ichiba

Katsumi Kojima

Hiroki Iwasa

Toyofumi Watanabe

Hiroshi Kubo

Masaaki Yamashita

Hideaki Sato

Yoshinori Yomura

Takeshi Miura

Yuya Niidome

Yuuji Tagawa

Hideo Mizuochi

Tamotsu Uduki

Kazuyuki Suda

Masaomi Takaoka

Shinsuke Nasukawa

Yoshiki Sakamoto

Akihiko Kataoka

A facility state analysis device of an embodiment is provided. The device includes an inputter which accepts input of information specifying a state and location of a facility installed outdoors, a calculator which calculates, by performing statistical processing based at least in part on the information specifying the state and location input to the inputter and information on a predetermined section on a map, an average failure year of the facilities in the section, and a display controller which displays, on a display, the average failure year calculated by the calculator superimposed on the map.

Facility state analysis device, analysis method for facility state, storage medium, and facility management system

An additive for an acidic tinplating bath comprises: an additive ingredient (A) prepared by adding oxypropylene to polyoxyethylene glycol and having an average molecular weight ranging from 3000 to 18000; an additive ingredient (B) prepared by adding oxypropylene to polyoxyethylene glycol and having an average molecular weight ranging from 300 to 1500; and the additive ingredient (A) and the additive ingredient (B) having a weight ratio of the additive ingredient (A) to the additive ingredient (B) being from 97/3 to 40/60.

Acidic tin-plating bath and additive therefor

A method for continuously tin-electroplating a metal strip, which comprises the steps of: causing a DC electric current to flow between a metal strip and an anode arranged adjacent to the metal strip while passing the metal strip at a travelling speed of at least 1 m/minute through an acidic tin-electroplating solution containing tin ions and an organic acid within a range of from 4.8 to 98 g/l as converted into sulfuric acid, to form a tin-electroplating layer on at least one surface of the metal strip; and applying an ultrasonic vibration, emitted from at least one ultrasonic vibrator and having an intensity within a range of from 0.01 to 1,000 W/100 cm.sup.2 and a frequency within a range of from 25 to 55 kHz, to the acidic tin-electroplating solution between the metal strip and the anode, thereby removing a diffusion layer of tin ions existing in the acidic tin-electroplating solution adjacent to the surface of the metal strip.

Method for continuously tin-electroplating metal strip

A method for manufacturing a tin-electroplated cold-rolled steel strip, which comprises the steps of: continuously annealing a degreased cold-rolled steel strip; then, subjecting, following the continuous annealing treatment, the continuously annealed cold-rolled steel strip to a continuous tin-electroplating treatment in a tin-electroplating bath to form, on at least one surface of the cold-rolled steel strip, a tin-electroplating layer having a plating weight within a range of from 0.1 to 2.8 g/m.sup.2 per surface of the cold-rolled steel strip; and then, temper-rolling, following the continuous tin-electroplating treatment, the cold-rolled steel strip having the tin-electroplating layer on at least one surface thereof, at a reduction ratio within a range of from 1 to 5%.

Method for manufacturing tin-electroplated cold-rolled steel strip

Growing community of inventors

Tokyo, Japan

Mikiyuki Ichiba