Abb K.k.

Nippon Steel & Sumitomo Metal Corporation

Other

Nec Corporation

Nippon Steel Corporation

Frontec Incorporated

Kabushiki Kaisha Toshiba

Oki Electric Industry Co., Ltd.

Ishikawajima-harima Jukogyo Kabushiki Kaisha

Abb Industry K.k.

Osamu Yoshida

Hidetsugu Matsuda

Toshio Hosoda

Hiroshi Abe

Tatsuo Yokoi

Akihiko Arichi

Tetsuo Ishitsuka

Shunichi Kobayashi

Takashi Tsusue

Shuji Iwamoto

Hideto Kawano

Yoshiyuki Abe

Tadahiro Ohmi

Takuya Hara

Yasuhiko Kasama

Shinji Abe

Akira Nakano

Masanori Minagawa

Kensuke Nagai

Hirofumi Fukui

Osamu Kawano

Hitoshi Kitagawa

Toshiaki Nakano

Chisato Iwasaki

Koichi Fukuda

Ryuichiro Niizeki

Wataru Kuroiwa

Masanori Miyazaki

Tomofumi Oba

Yoshinori Imashimizu

Yoshiaki Suda

Kunihito Morioka

Shuichi Yamamoto

Sadayuki Morita

Toshiyuki Takada

Shinichi Araki

Toshiyuki Ogata

Tsutomu Shigeta

Masakazu Koike

Toshiro Terachi

Kenji Sekiguchi

Tadao Yokumoto

Yoshihisa Nishimoto

Shinji Miura

Yasuhiro Miyatani

Masanori Fukuoka

Tomohira Michishita

Masaru Kubota

Chae Gee-Sung

Kim Jong-Il

Shigeo Kobayashi

Haruo Saito

Hiroshi Nara

Kiyoharu Yamamoto

Yoshiji Yokomizo

Norio Umezawa

An electrostatic atomizer can include a paint supply path configured to supply paint to a paint discharge section; and a high voltage supply path configured to supply a high voltage to a discharge electrode, wherein the discharge electrode comprises a semi-conductive material, and wherein the high voltage supply path includes a high resistance near the discharge electrode, and is electrically segregated from the paint supply path.

Electrostatic atomizer

An as-rolled type K55 electric resistance welded oil well pipe includes, in terms of % by mass, 0.30 to 0.50% of C, 0.05 to 0.40% of Si, 0.50 to 1.20% of Mn, 0 to 0.030% of P, 0 to 0.020% of S, 0.002 to 0.080% of Al, 0 to 0.0080% of N, 0 to 0.30% of Cu, 0 to 0.30% of Ni, 0 to 0.30% of Cr, 0 to 0.10% of Mo, 0 to 0.10% of V, 0 to 0.050% of Nb, 0 to 0.030% of Ti, 0 to 0.0100% of Ca, and the balance being Fe and impurities. In the pipe, a metallographic structure at a position of &#xbc; of a pipe thickness in an L cross-section at a base metal 90&#xb0; position is a ferrite-pearlite structure in which prior &#x3b3;-grains are flattened, includes grain boundary ferrite and intragranular ferrite, and has a rate of a total area of the grain boundary ferrite and the intragranular ferrite, of 10 to 30%.

As-rolled type K55 electric resistance welded oil well pipe and hot-rolled steel sheet

Electric resistance welded steel pipe securing the high strength and high toughness demanded from oil well pipe in recent years. The metal structure in a region having a width of 0.5 mm in both the thickness directions from a reference point, when using a point defined as a point &#xbc; of the thickness in the thickness direction from the surface in the base material part of the steel as the reference point, consists of polygonal ferrite: 10 area % or less and a balance: bainitic ferrite. The thickness is 15 mm or more.

High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipe

The present invention has as its object the provision of hot rolled steel sheet (hot coil) for line pipe use in which API5L-X80 standard or better high strength and low temperature toughness and ductile fracture arrest performance are achieved and a method of production of the same. For this purpose, the hot rolled steel sheet of the present invention comprises C, Si, Mn, Al, N, Nb, Ti, Ca, V, Mo, Cr, Cu, and Ni in predetermined ranges and a balance of Fe and unavoidable impurities, in which the microstructure is a continuously cooled transformed structure, in which continuously cooled transformed structure, precipitates containing Nb have an average size of 1 to 3 nm and are included dispersed at an average density of 3 to 30&#xd7;10/m, granular bainitic ferrite and/or quasi-polygonal ferrite are included in 50% or more in terms of fraction, furthermore, precipitates containing Ti nitrides are included, and they have an average circle equivalent diameter of 0.1 to 3 &#x3bc;m and include complex oxides including Ca, Ti, and Al in 50% or more in terms of number.

High strength hot rolled steel sheet for line pipe use excellent in low temperature toughness and ductile fracture arrest performance and method of production of same

A hot-rolled steel sheet according to the present invention is a steel sheet containing a predetermined components, and satisfying O&#x3c;S/Ca&#x3c;0.8, N&#x2212;14/48&#xd7;Ti&#x2267;'0' (zero) %. It is a high-strength hot-rolled steel sheet for a spiral pipe excellent in low-temperature toughness in which a pro-eutectoid ferrite fraction is 3% or more and 20% or less, and the other is a low-temperature transformation phase in a microstructure at a depth of a half thickness of a sheet thickness from a steel sheet surface, a number average crystal grain size of a whole of the microstructure is 2.5 &#x3bc;m or less, an area average grain size is 9 &#x3bc;m or less, a standard deviation of the area average grain size is 2.3 &#x3bc;m or less, and a reflected X-ray intensity ratio {211}/{111} in a direction and in a {111} direction relative to a plane in parallel to the steel sheet surface at the depth of the half thickness of the sheet thickness from the steel sheet surface is 1.1 or more. The steel sheet has both high-toughness and strength of API5L-X80 standard or more.

Hot-rolled steel sheet and manufacturing method thereof

The present invention provides hot rolled steel plate for spiral pipe superior in low temperature toughness, thick in gauge, for example, having a plate thickness of 14 mm or more, and having a high strength of the API-X65 standard or more spiral pipe and a method of production of the same, that is, steel plate containing, by mass %, C: 0.01 to 0.1%, Si: 0.05 to 0.5%, Mn: 1 to 2%, P&#x2266;0.03%, S&#x2266;0.005%, O&#x2266;0.003%, Al: 0.005 to 0.05%, N: 0.0015 to 0.006%, Nb: 0.005 to 0.08%, Ti: 0.005 to 0.02%, N&#x2212;14/48&#xd7;Ti&#x3e;0%, Nb&#x2212;93/14&#xd7;(N&#x2212;14/48&#xd7;Ti&#x3e;0.005%, Mo: 0.01% to less than 0.1%, Cr: 0.01 to 0.3%, and Cu: 0.01 to 0.3%, and having a balance of Fe and unavoidable impurities, characterized in that an elongation rate of a microstructure unit in a cross-section in the pipe circumferential direction after pipemaking is 2 or less.

High strength hot rolled steel plate for spiral line pipe superior in low temperature toughness and method of production of same

The present invention provides high strength hot rolled steel plate for line-pipes superior in low temperature toughness, and a method of production of the same, containing, by mass %, C: 0.01 to 0.1%, Si: 0.05 to 0.5%, Mn: 1 to 2%, P: &#x2266;0.03%, S: &#x2266;0.005%, O: &#x2266;0.003%, Al: 0.005 to 0.05%, N: 0.0015 to 0.006%, Nb: 0.005 to 0.08%, and Ti: 0.005 to 0.02%, where N&#x2212;14/48&#xd7;Ti&#x3e;0% and Nb&#x2212;93/14&#xd7;(N&#x2212;14/48&#xd7;Ti)&#x3e;0.005%, and a balance of Fe and unavoidable impurities, said steel plate characterized in that its microstructure is a continuously cooled transformed structure, a reflected X-ray intensity ratio {211}/{111} of the {211} plane and {111} plane parallel to the plate surface in the texture at the center of plate thickness is 1.1 or more, and an in-grain precipitate density of the precipitates of Nb and/or Ti carbonitrides is 10to 10/cm.

High strength hot rolled steel products for line-pipes excellent in low temperature toughness and production method of the same

A paint cartridge is provided with a wash fluid passage in communication with a paint chamber, along with a wash fluid valve adapted to open and close the wash fluid passage. Provided on the side of a replenishing stool are a replenishing valve which supplies or discharges paint to or from the paint chamber, an extruding thinner feed/discharge valve which supplies or discharges paint-extruding thinner to or from an extruding thinner chamber, and a wash fluid supply valve which supplies a wash fluid to the paint chamber through the wash fluid passage. Accordingly, upon opening the replenishing valve, wash fluid supply valve and wash fluid valve, a wash fluid from the wash fluid supply valve is allowed to flow into the paint chamber through the wash fluid passage and discharged through a feed tube to wash away deposited paint therefrom.

Cartridge type coating system

When replacing a paint cartridge ( ) on the coating apparatus ( ), a replenished paint cartridge of a next paint color is picked up from one of paint replenisher units ( to ) by one gripper member ( ) of a cartridge gripper ( ). In the next place, while the replenished paint cartridge ( ) is being continuously gripped on one gripper member ( ), a consumed or empty paint cartridge ( ) is gripped and removed from the housing ( ) by the other gripper member ( ). Then, the replenished paint cartridge on one gripper member ( ) is loaded on the housing ( ), and the empty paint cartridge ( ) is returned to a corresponding one of the paint replenisher units ( to ). Thus, the paint cartridges ( ) can be replaced in a significantly simplified manner.

Automatic coating method and apparatus

Mounted on a wrist portion ( ) of a single coating robot ( ) is a common main assembly body ( ) to which a plural number of bell-shape heads ( ) are replaceably connectible. Further, a head changer ( ) is provided within a working area of the coating robot ( ), the head changer ( ) being provided with head gripping mechanisms ( ) to hold a plural number of bell-shape heads ( ) thereon. By the use of the coating robot ( ), one of the bell-shape heads ( ) on the head changer ( ) is replaceably connected to the common main assembly body ( ) to form a complete sprayer ( ). Accordingly, the coating robot ( ) can perform various coating operations by selectively picking up a suitable bell-shape head ( ) from the head changer ( ) and connecting same to the common main assembly body ( ).

Automatic coating apparatus

Automatic painting method and device therefor

An automatic coating apparatus which is arranged to guarantee higher operational reliability, particularly to preclude coating defects as caused by malfunctioning of a cartridge gripper ( ) or by the use of an non-replenished or deficiently replenished paint cartridge. A cartridge gripper assembly ( ) is constituted by a gripper member ( ) with gripper claws for gripping a paint cartridge ( ), a grip detector switch ( ) which is adapted to detect whether or not the paint cartridge ( ) is securely gripped by the gripper. ( ), and a replenishment level detector switch ( ) which is adapted to detect whether or not the paint cartridge ( ) is replenished with paint to a predetermined extent. Therefore, as the paint cartridge ( ) is gripped by the cartridge gripper ( ), the grip condition on the paint cartridge ( ) can be monitor by the grip detector switch ( ). At the same time, a replenished paint level within the cartridge ( ) can be monitored from outside by the replenishment level detector switch ( ).

Automatic painting device

A rotary atomizing head type coating system capable of multiple color changes in the course of a coating operation. A housing (,) with a coating machine (,) is mounted on a wrist portion (,) of a coating robot. Provided for the coating system are a plural number of feeder units (,) which serve as separate sources for a variety of paint colors and which each accommodate a paint valve (,) and a solvent valve (,). Through paint hoses (,) and solvent hoses (,), the respective feeder unit (,) are connected to paint supply lines (,) of different colors and a solvent supply line (,). In order to supply paint of different colors to the coating machine (,) during a coating operation, the feeder units (,) are selectively and replaceably loaded into the housing (,). The use of a plural number of feeder units (,) which can be replaceably attached to the coating machine (,) makes it possible for the coating system (,) to cope with multiple color changes whenever necessary in the course of a coating operation.

Rotary atomizing head type coating device

An endo-bag with an inflation-type receiving mouth comprising a flexible bag body having an organ receiving mouth provided with an inflation-type frame edge and an inserting portion for a surgical instrument such as forceps and laparoscope or the like. The inflation-type frame edge is provided with gores formed by three-dimensional tailoring and being so constructed as to be inflated and expanded to open said organ receiving mouth by pumping a fluid therein. The endo-bag can be easily and rapidly inflated and expanded to open the organ receiving mouth by pumping a fluid at low pressure and with small amount.

Endo-bag with inflation-type receiving mouth and instrument for inserting endo-bag

A paint cartridge replenisher (,) is constituted by a replenishing stool (,) having a feed tube passage hole (,) and a container support portion (,), a connector member (,) connectable to and communicable with a fore distal end of a feed tube (,), and a replenishing valve (,) operative to turn on and off paint supply from a paint source to the connector member (,). A paint cartridge (,) is set on the container support portion (,), thereby passing the feed tube (,) into the feed tube passage hole (,) on the side of the replenishing stool and bringing a fore distal end portion of the feed tube (,) into fitting engagement with the connector member (,). In this state, the replenishing valve (,) is opened, whereupon paint is supplied from the paint source to the connector member (,) and replenished into the container (,) of the paint cartridge (,), utilizing the opening at the fore distal end of the feed tube as a replenishing port of the paint cartridge (,).

Paint filling device for cartridges

Growing community of inventors

Tokyo, Japan

Osamu Yoshida