摘要:
Disclosed is a high-strength hot dip galvannealed steel sheet having high powdering resistance produced by employing such a constitution that a Fe—Zn alloy plated layer is provided on at least one side of a basis steel sheet and a region in which Al (atomic %)/Zn (atomic %)≧0.10 is present in a thickness of 300 Å or more from the surface of the plated layer along the depth direction of the plated layer. Also disclosed is a hot dip galvannealed steel sheet whose formability is greatly improved by optionally specifying chemical composition and structure of the basis steel sheet.
摘要:
Disclosed is a hot-dip galvannealed steel sheet that stably exhibits satisfactory phosphatability. It is a high-strength hot-dip galvannealed steel sheet which includes a base steel sheet and, arranged on at least one side thereof, an Fe—Zn alloyed galvanized layer. The base steel sheet contains 0.03% to 0.3% of carbon, 0.5% to 3.0% of silicon, and 0.5% to 3.5% of manganese, with the remainder including iron and inevitable impurities. The Fe—Zn alloyed galvanized layer has a concentration of silicon present as an oxide of [Si] (percent by mass) and a concentration of manganese present as an oxide of [Mn] (percent by mass), and these parameters satisfy the following conditions (1) and (2): [Si]≦0.25 (1) [Mn]/[Si]≦3.0 (2).
摘要:
Disclosed is a high-strength hot dip galvannealed steel sheet having high powdering resistance produced by employing such a constitution that a Fe—Zn alloy plated layer is provided on at least one side of a basis steel sheet and a region in which Al (atomic %)/Zn (atomic %)≧0.10 is present in a thickness of 300 Å or more from the surface of the plated layer along the depth direction of the plated layer. Also disclosed is a hot dip galvannealed steel sheet whose formability is greatly improved by optionally specifying chemical composition and structure of the basis steel sheet.
摘要:
Disclosed is a hot-dip galvannealed steel sheet that stably exhibits satisfactory phosphatability. It is a high-strength hot-dip galvannealed steel sheet which includes a base steel sheet and, arranged on at least one side thereof, an Fe—Zn alloyed galvanized layer. The base steel sheet contains 0.03% to 0.3% of carbon, 0.5% to 3.0% of silicon, and 0.5% to 3.5% of manganese, with the remainder including iron and inevitable impurities. The Fe—Zn alloyed galvanized layer has a concentration of silicon present as an oxide of [Si] (percent by mass) and a concentration of manganese present as an oxide of [Mn] (percent by mass), and these parameters satisfy the following conditions (1) and (2): [Si]≦0.25 (1) [Mn]/[Si]≦3.0 (2)
摘要:
Comprising a pump for supplying or discharging gas to or from a balloon for fixing attached to a peripheral part of a tip part of an inserting unit of an endoscope; and a control unit for controlling a pressure inside the balloon by operating the pump based on the measured result by measuring a pressure of gas inside the balloon; wherein the control unit has an amount of flow detecting section for detecting the amount of flow of gas sent or drawn to or from the balloon, and controls the amount of flow of gas sent or drawn to or from the balloon by operating the pump based on the detected result by the amount of flow detecting unit.
摘要:
An endoscopic insertion aid includes a tube member, a pipeline and a plurality of balloons. The tube member allows an insertion section of an endoscope to be inserted therethrough, and guides the longitudinal movement of the insertion section. The pipeline is provided in the tube member, and communicates with a supply/discharge unit to supply a fluid to or discharge the fluid from the distal end of the tube member. The balloons are disposed on the outer periphery of the distal end of the tube member longitudinally along the tube member, communicate with the pipeline, and inflate/deflate in accordance with the supply/discharge of the fluid via the pipeline. The balloon disposed on the distal side of the tube member is inflated to have an outside diameter larger than that of the balloon disposed closer to the proximal side than the balloon disposed on the distal side when the balloons are inflated.
摘要:
Comprising first and second pumps for supplying or discharging air to or from a balloon for fixing attached to peripheral of a tip part of an overtube for an endoscope being inserted therethrough, after a balloon for fixing attached to a peripheral part of a tip part of an inserting unit of the endoscope and the balloon for fixing attached to the peripheral part of the tip part is attached, a timer counter for detecting a gas sending time or a gas drawing time to or from each of the balloons, and a control unit for controlling a pressure inside each of the balloons by operating the first and second pumps based on a detected result by the timer counter.
摘要:
An endoscopic insertion aid includes a tube member, a pipeline and a plurality of balloons. The tube member allows an insertion section of an endoscope to be inserted therethrough, and guides the longitudinal movement of the insertion section. The pipeline is provided in the tube member, and communicates with a supply/discharge unit to supply a fluid to or discharge the fluid from the distal end of the tube member. The balloons are disposed on the outer periphery of the distal end of the tube member longitudinally along the tube member, communicate with the pipeline, and inflate/deflate in accordance with the supply/discharge of the fluid via the pipeline. The balloon disposed on the distal side of the tube member is inflated to have an outside diameter larger than that of the balloon disposed closer to the proximal side than the balloon disposed on the distal side when the balloons are inflated.
摘要:
A fluid-supplying/discharging system for use in medical devices includes a supplying/discharging device and a tubular-path-resistance changing mechanism. The supplying/discharging device includes a pump capable of supplying and discharging fluid, a tubular path having two ends, connected at one end to the pump and at the other end to a medical device, and a control device connected to the pump and configured to control the supplying and discharging of the fluid to and from the pump. The tubular-path-resistance changing mechanism changes resistance to the fluid flowing through the tubular path.
摘要:
An endoscopic insertion aid includes a tube member, a pipeline and a plurality of balloons. The tube member allows an insertion section of an endoscope to be inserted therethrough, and guides the longitudinal movement of the insertion section. The pipeline is provided in the tube member, and communicates with a supply/discharge unit to supply a fluid to or discharge the fluid from the distal end of the tube member. The balloons are disposed on the outer periphery of the distal end of the tube member longitudinally along the tube member, communicate with the pipeline, and inflate/deflate in accordance with the supply/discharge of the fluid via the pipeline. The balloon disposed on the distal side of the tube member is inflated to have an outside diameter larger than that of the balloon disposed closer to the proximal side than the balloon disposed on the distal side when the balloons are inflated.