| Document |
Document Title |
|
JPH08197147A |
PURPOSE: To form a snap ring groove with the roll over on a drum opening end side being suppressed small, and without causing any fall or crack in a device where the snap ring groove is formed in the half blanking in the tooth tip part o...
|
|
JPH08192219A |
PURPOSE: To provide a working device for a pipe with a groove on its inside surface, by which a long pipe with a groove on its inside surface and with a high heat exchanging efficiency can be manufactured, also the defective insertion of...
|
|
JP2514560B2 |
PURPOSE: To effectively and surely execute a joining operation by forming a non-rolled part without existence of a recessing groove at a joining end part in a time making a right angle state by joining a stock of long scale piece and a s...
|
|
JPH08174044A |
PURPOSE: To provide a process for producing a small-diameter heat transfer tube with grooves on the inside surface capable of suppressing the manufacturing cost, preventing the fracture or fall of the peak parts of the inside surface of ...
|
|
JPH08168817A |
PURPOSE: To provide an advantageous manufacturing method of a heat exchanger having inner grooves with which evaporative performance is effectively elevated while effectually ensuring condensing performance. CONSTITUTION: In parts equiva...
|
|
JP2510885B2 |
|
|
JP2502996Y2 |
|
|
JP2506058B2 |
PURPOSE: To surely produce the pulley having separating zone for preventing disengagement of belt between each belt stretching part on the basis of the bottomed cylindrical body formed from a metal plate stock by form rolling with plural...
|
|
JP2502245B2 |
PURPOSE: To make it possible to rapidly apply a metallic container consisting of high temper material to prescribed working in a non-supporting state. CONSTITUTION: The apparatus of this method consists of a supporter 19 which is elastic...
|
|
JPH08132145A |
PURPOSE: To obtain a working method for easily and effectively controlling the wall thickness of an inner bead to an arbitrary desired thickness by abutting a bead forming tool on the circumferential wall of a metallic pipe while a compr...
|
|
JPH08117875A |
PURPOSE: To provide a device which can form a stepped groove to a round material in high precision and low cost so as to reduce the lowering of the strength. CONSTITUTION: The outer peripheral surface of the round material 5 is fitted to...
|
|
JPH08117908A |
PURPOSE: To provide such manufacturing method of heat exchanger fins as is capable of forming a hole with a collar as high as possible on a thin metallic body of the same thickness. CONSTITUTION: In forming a collar-attached hole 20, who...
|
|
JPH0832342B2 |
PURPOSE:To prevent the generation of strain on the bead forming products by operating punching force of the punching machine instantaneously to the work, extruding a minute amount of the bead continuously and forming the required bead. C...
|
|
JPH087949Y2 |
|
|
JPH0756091Y2 |
|
|
JPH07115046B2 |
|
|
JPH07323336A |
PURPOSE: To provide a plate where damages on the plate surface generated in forming the bead part are reduced to the minimum, and the beads with excellent appearance are provided by making the radius of curvature of the peripheral part o...
|
|
JPH07323337A |
PURPOSE: To improve the yield by forming a bead tip part and a bead peripheral part on the arc respectively, and joining the respective arcs with other parts at the position of the bead height shorter than the respective radii of curvatu...
|
|
JPH07314257A |
PURPOSE: To easily apply the spiral groove work freely with the constant pitch or the arbitrary variable pitch in a continuous form, permit the winding even if a tube is long and thin, improve productivity, and manufacture the tube havin...
|
|
JPH07299524A |
PURPOSE: To form a dynamic pressure generation groove on the inside diameter of a sleeve with a comparatively small diameter by inserting plural balls in a guide hole provided in a guide shaft in contact with each other, joining them tog...
|
|
JPH07275977A |
PURPOSE: To restrict deforming of a tube to be machined caused by the cutting resistance and to improve the machining precision of a fin by making a rotating cutting tool in contact with an internal wall surface while reducing the tube t...
|
|
JPH0744334Y2 |
|
|
JPH0773742B2 |
|
|
JPH0771703B2 |
|
|
JPH0769116B2 |
|
|
JPH07185674A |
PURPOSE: To decrease frictional resistance between a projecting die part and cylinder peripheral wall and to avoid a galling on the projecting die part, etc., and a crack on a cylinder bottom, etc., by constituting the projecting die par...
|
|
JPH07156769A |
PURPOSE: To provide a torn wheel which eliminates the necessity of high- precision mechanical working, secures a sufficient detecting ability of a sensor and provides an enhanced tightening force with which it is assembled to a detecting...
|
|
JPH0726011Y2 |
|
|
JPH0726012Y2 |
|
|
JPH07144214A |
PURPOSE: To obtain an objective shape by estimating the change of shape after grooving and thereby reflecting the variation on the shape before grooving. CONSTITUTION: A reference tube is grooved, the coefficient of friction is obtained ...
|
|
JPH0747458B2 |
|
|
JPH0747180B2 |
|
|
JPH0741310B2 |
A high-performance heat transfer tube for an evaporator of an air conditioning or refrigeration system is formed on a grooved mandrel that has a sufficient number of grooves, such as 60 to 90 for a 5/8 inch tube, to produce a small-pitch...
|
|
JPH07100579A |
PURPOSE: To obtain a high precise rack bar by low pressing pressure at one process by pressing a cylindrical blank into a cavity having teeth line for forming the rack, which has higher parts and root parts paralleled in the pressing dir...
|
|
JPH07100528A |
PURPOSE: To obtain a special shaped tube whose dimensions of corner parts are smaller and which is excellent in flatness in planar parts. CONSTITUTION: By rolling using a grooving roll and grinding, Vgrooves G1-G8 which are extended in t...
|
|
JPH0760334A |
PURPOSE: To provide a production device of a tube with internal grooves which has an excellent radiating property, an excellent durability even when grooving is highly speedily made and a stable quality. CONSTITUTION: The device has a gr...
|
|
JPH0760393A |
PURPOSE: To provide a groove of a specific shape and dimension where no force in the axial direction is applied to a chuck, and no sag and swell is present in the groove to be formed by moving the chuck according to the elongation in the...
|
|
JPH0716740B2 |
|
|
JPH078096Y2 |
|
|
JPH0751753A |
PURPOSE: To obtain a device which expedites the change of a cage and balls and has a long effective by executing lubrication of a cage provided with a actuating member having a specific internal profile and all portions within the cage. ...
|
|
JPH0710409B2 |
|
|
JPH074635B2 |
|
|
JPH0716662A |
PURPOSE: To improve parts life and machining accuracy of the device by forming a groove on the inside surface of the part to be machined of a tube through the rotation of a grooving plug as the tube to be machined is moved in the axial d...
|
|
JPH073826U |
[Purpose] A plurality of irregularities formed on the surface of the work material are uniformly formed. [Constitution] The holder portion 26 of the die holder 22 slidably holds four dies 32 at 90-degree intervals with respect to the cen...
|
|
JPH0716641A |
PURPOSE: To control slipping or rubbing on a contact part of a working roll and a back-up roll by arranging rolls having two different diameters in the longitudinal direction of the shaft in series as a 2nd roll and also making a 1st rol...
|
|
JPH0712482A |
PURPOSE: To provide a heat transfer tube with an inner surface groove and a method for manufacturing the same in which performance is further improved without increasing a pressure loss and without increasing a processing load at the tim...
|
|
JPH074884A |
PURPOSE: To improve both an evaporation efficiency and a condensing efficiency by a method wherein some large projections are formed at an inner surface of a metallic pipe with a specified spacing therebetween and a pair of small project...
|
|
JPH0646575Y2 |
|
|
JPH0646576Y2 |
|
|
JPH06328153A |
PURPOSE: To form a steel strip with an irregular shaped section whose thick parts on the center side with plural the same sectional shapes, and a thick part and a thin part of edge parts positioned on both ends, are made continuous throu...
|
