摘要:
An electrode roll for an electric resistance seam welding machine comprises a stator substantially made of copper or a copper alloy, a rotor mounted on the periphery of the stator, and substantially or in part made of copper or a copper alloy and rotatably a gap portion formed by the stator and the rotor. A conductive liquid metal, which is a fusible alloy composed mainly of gallium, is inserted in the gap portion through a filling hole and is sealed in the gap portion. At least the portion of the filling hole that may come in contact with the conductive liquid metal is fabricated of a metal or metal alloy which is hard to be corroded by the fusible alloy. The remaining surfaces of both rotor and stator facing the gap portion are covered with a layer or layers of a metal or metal alloy that is hard to be corroded by the fusible alloy. In at least one embodiment, such layer or layers are further covered with another thin layer of metal which has an excellent wettability by the fusible alloy.
摘要:
An electrode roll for electric resistance welding which contains a stator member at least partly made of Cu or Cu alloy, a rotor member at least partly made of Cu or Cu alloy and rotatably mounted on the stator member, and a fusible alloy mainly composed of gallium and filling as a conductive medium an annular gap between the stator and rotor members, and portions of those two members facing the gap and being made of Cu or Cu alloy are covered by an alloy layer containing Co and W in weight proportions of 90:10 to 30:70.
摘要:
To provide a apparatus for processing an object by projecting shots thereon that can be downsized and can use shots of appropriate sizes. A pressure tank 42 is disposed below a position 24X where an object to be processed 12 is projected. The shots that have been projected are received by the tank 42. The discharging portion of the tank 42 is communicated with a device for projecting shots. One end of a piping for transporting air for a discharge 54 that can suction shots is connected to a position between the position 24X and the tank 42. The other end of the piping 54 is connected to a separator 68. The separator 68 is connected to one end of the piping for transporting air for a supply 76 that can suction shots. The other end of the piping 76 is communicated with the room for projecting the shots 16.
摘要:
An inspection system 1 having a plurality of network segments 2 includes: a management information acquiring unit 34 which acquires a node ID that a node 90 belonging to the network segment 2 can be identified and a segment ID that the network segment 2 to which the node 90 belongs can be identified; a management information accumulating unit 35 which accumulates the acquired node ID and segment ID in the way of being associated with each other; a cutoff determining unit 36 which determines whether the cutoff of the communications of the node 90 specified by the accumulated node ID and segment ID is required or not; and a communication cutoff unit 21 which cuts off the communications of the node 90 specified by the node ID in the case of determining that the cutoff of the communications of the node 90 is required.
摘要:
A light conducting plate and a back lighting device provided with the light conducting plate, in which the luminance in a light-outlet face is made uniform by disposing, on a reflecting face having a light-scattering region and the remainder region on the side near to and/or the side distant from a light-inlet end face to reduce the degree of scattering in the remainder region, or by surface-roughening the light-inlet end face to remove the dark line caused by imaging of the light-inlet end face.
摘要:
The present invention aims to provide a shot-treatment apparatus which allows a high throughput of workpieces with the least possible idle time while achieving a uniform shot-treatment effect on workpieces. The shot-treatment apparatus of the present invention has a rotatable main table 30 located in the place where both a projection area to be projected upon by the shot from a projecting device and a non-projection area are included. A plurality of satellite tables 32 for placing workpieces 12 are rotatably mounted on the main table 30. Each satellite table 32 has a driven shaft 33 which is in parallel with a main shaft 31 of the main table 30. The shot is projected from the projecting device against the workpiece 12 that is placed on the satellite table 32. The workpiece 12 that is placed on the satellite table 32 is held down by a holding member 48 of a holding assembly 46. The holding member 48 rotates along with the workpiece 12.
摘要:
A large table 30 is rotatably disposed at a position within an area that includes a projected area toward which shot is projected and a non-projected toward which no shot is projected. A plurality of small tables 32 are disposed on the large table 30. Each of the small tables 32 has a rotating shaft 33 that is parallel to the rotating shaft 31 of the large table 30. Thereby each of the small tables 32 can rotate. Workpieces 12 are placed on the small tables 32. A centrifugal projector 20 centrifugally accelerates shot to project it toward the workpieces 12 on the small tables 32. Each of the workpieces 12 on the small tables 32 is pressed down from above by the holding member 48 of the holding mechanism 46. The holding member 48 can rotate along with the workpiece 12.
摘要:
The purpose of this invention is to reduce the changes in the conditions of the processing for projecting shots, and to downsize the air-type shot-treatment machine 10 and simplify its structure.An air-type shot-treatment machine 10 comprises a table 12 to hold an article to he processed, wherein the table 12 can rotate the article and lift and lower it, a nozzle 16 to project shots toward the article together with compressed air, wherein the nozzle 16 is fixed so that it is oriented toward the article, and is connected to a pressurized tank 46 by means of a connecting device 44 having a wear-resistant hose 40, an adjusting device 18 to adjust the quantity of shots projected from the nozzle 16, wherein the adjusting device 18 is disposed at the connecting device 44, a rotating device 20 to rotate the table 12, a moving device 22 to lift and lower the table 12, and a control device 24 to control the adjusting device 18 and the rotating device 20 so that while the table 12 is being rotated, the shots are being projected toward the article to he processed, and, further, to control the moving device 22 so that the table 12 is lifted and lowered.
摘要:
The present invention relates to a subcutaneous needle in which a needle body and an adhesive tape are reliably secured together with a resin material enabling the operation to be correctly executed, and a method of producing the same. The subcutaneous needle is constituted by an adhesive tape, a separate paper, a needle body and a resin material. The adhesive tape has a hole formed in the central portion and has an adhesive surface on one side thereof. The separate paper has a hole in the central portion and is stuck on the adhesive surface of the adhesive tape. The needle body is bent in an L-shape and its top end side protrudes penetrating through the holes of the adhesive tape and of the separate paper. The base end side of the needle body is arranged nearly in parallel with a nonadhesive surface of the adhesive tape. The resin material is injection-molded onto the nonadhesive surface of the adhesive tape so as to cover and secure the base end side of the needle body.
摘要:
In a process for producing a phenolic compound which comprises treating an aralkyl hydroperoxide with a mineral acid to cleave it to phenolic compound and a ketone, neutralizing or removing the mineral acid, feeding the resulting acid cleavage mixture containing the salt to a distillation column, distilling it therein to separate it into an overhead fraction consisting mainly of the ketone and a bottom fraction consisting mainly of the phenolic compound, and recovering the phenolic compound from the bottom fraction; the improvement which comprises withdrawing a liquid layer from a site of feeding the acid cleavage mixture in the distillation column or from a site below it but above the bottom of the distillation column, subjecting the liquid layer to an oil-water separating means, recycling the separated oil layer to a site below said site of withdrawal, optionally feeding a hydrocarbon having a lower boiling point than the phenolic compound but a higher boiling point than the keton and/or water to the distillation column, and recovering the phenolic compound from the bottom fraction whose salt content has thus been reduced.