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51. 发明专利

JPH0584521A METHOD FOR BENDING METALLIC TUBE 失效
公开(公告)号：JPH0584521A
公开(公告)日：1993-04-06
申请号：JP15943191
申请日：1991-06-04
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , FUJITA MASATSUGU
IPC分类号： B21D3/00 , B21D7/025 , B21D7/16
摘要： PURPOSE:To provide the method for bending the metallic tube doing without correcting it after taking out from a tube bending device by measuring the difference between the above bent angle and the required bending angle and correcting the bent metallic tube in this bending device. CONSTITUTION:In the bending device of a metallic tube 1 that the metallic tube 1 to be bent is passed through a suitable heating device 6 which can heat it partially, annularly and the top end side to be bent is clamped 4a at an arm 4 freely rotational, the heating part 2 is moved relatively to the longitudinal direction of the tube with a suitable moving device while heating the above metallic tube 1 with the heating device 6, applying the bending moment and deformed, the heating part 2 is cooled with a cooling means 6a with a water cooling just after the above, when the bending angle is reached to the set value, the heating is stopped, at once, the deforming between the metallic tube 1 and the bending moment applying device is opened and the deviation between the set angle and the bent angle is detected together, and the cooling water quantity of the heating part 2 is adjusted at the compressing side 2a and the pulling side 2 of the tube to the direction to decrease the above deviation while moving the cooling means 6 and the tube relatively.

52. 发明专利

JPH01100447A MEASUREMENT OF MOISTURE CONTENT 失效
公开(公告)号：JPH01100447A
公开(公告)日：1989-04-18
申请号：JP25732187
申请日：1987-10-14
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： TANIGUCHI YASUYUKI , WATANABE YASUO
IPC分类号： G01N27/22 , G01N27/02
摘要： PURPOSE:To learn the amount of moisture of an object to be measured varying in the density of an electrolyte, by measuring an AC input/output characteristic between electrodes inserted into the object being measured to determine a data concerning capacity from a measured value obtained. CONSTITUTION:A relationship is almost primary between the amount of moisture and a series equivalent capacity free from the density of a manure liquid. A signal current I flows through electrodes 2 inserted into a slag wool head 1 as object to be measured from an oscillator 3. Then, a voltage V generated between the electrodes is inputted into a computing device 4 to calculate a series equivalent capacity value of impedance of the object being measured and the results undergoes a proportional conversion to be displayed on a display meter 5 as amount of moisture. Moreover, the series equivalent capacity value is inputted into a limit switch mechanism 6 and a solenoid valve 8 is operated to manage a feed liquid to be supplied from a feed tube 7.

53. 发明专利

JPS62176616A BENDING METHOD FOR METAL TUBE 失效
公开(公告)号：JPS62176616A
公开(公告)日：1987-08-03
申请号：JP1753086
申请日：1986-01-29
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： HORIUCHI YASUSHI , WATANABE YASUO
IPC分类号： B21D7/16
摘要： PURPOSE:To properly heat and to perform a good work for bending with even a small curvature by alternately impressing time-shared, different frequency voltages to a heating coil and varying a ratio of sharing time at the beginning and finishing of the work. CONSTITUTION:Time-shared, different frequency voltages are alternately impressed to a high frequency induction heating coil HC by periods of time of t1 and t2. When the voltages are impressed with a ratio of t1/t2 adjusted, a heating temp. depth (heating depth) necessary for hot plastic deformation is changed. Thus, the sharing time ratio at the beginning of a bending work is gradually varied from a small prescribed value (a shallow heating depth) to a large prescribed value (a deep heating depth) and the sharing time ratio at the finishing of the bending work is gradually varied from a large value to a small value. Thus, a high quality bending are obtained by suitably adjusting the heating condition, even if a small curvature is required.

54. 发明专利

JPS62149809A HIGH-FREQUENCY HEAT TREATMENT 失效
公开(公告)号：JPS62149809A
公开(公告)日：1987-07-03
申请号：JP28790585
申请日：1985-12-23
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： HORIUCHI YASUSHI , WATANABE YASUO
IPC分类号： C21D1/10 , C21D9/32
摘要： PURPOSE:To make a good heat treatment of of steel products having ruggedness with high accuracy by alternately impressing time-divided voltages of different frequencies to a heating coil. CONSTITUTION:A power source is connected via switches SW1, SW2 to taps T1, T2 of a matching transformer Tr to make good matching to meet the frequencies f1, f2 to be impressed to the same heating coil HC. While the switches SW1, SW2 are opened and closed according to divided time T1, T2, the voltages of different frequencies are intermittently or continuously impressed to a material to be heated such as gear G by which said material is heated. The heating is executable by the above-mentioned method while the desired matching is maintained and therefore, the heat treatment of high accuracy is efficiently applied to the gear G and screw, etc.

55. 发明专利

JPS57123917A Induction heating method for metallic bar material having different wall thickness 失效
标题翻译：用于具有不同壁厚的金属棒材料的感应加热方法
公开(公告)号：JPS57123917A
公开(公告)日：1982-08-02
申请号：JP822081
申请日：1981-01-22
申请人： Dai Ichi High Frequency Co Ltd
发明人： WATANABE YASUO
IPC分类号： C21D1/42 , H05B6/02
CPC分类号： C21D1/42 , Y02P10/253
摘要： PURPOSE: To heat metallic bar materials having different wall thicknesses uniformly over the entire length while moving the same at a constant speed by forming inductors for heating into multiturn type permitting division to invidual turns, and changing conduction of electricity to the invidual turns programmatically.
CONSTITUTION: A metallic bar material A moving at a constant speed in an arrow direction is heated with inductors I. The material A has different wall thicknesses (x), (y), (z) and the number of turns of the inductors required for heating the bar material up to a constant temp. while moving the same at this speed is set at 10 turns in the wall thickness part (x), 15 turns in the part (y) and 20 turns in the part (z). The black dots of the inductors I indicate the windings under conduction of electricity and the white dots indicate the winding under halt. The part (x) is heated by the 10 turns. When the leading end (b) of the part (z) comes to the winding 1, this is detected and electricity is conducted to the winding 1. According to the movement of the (b), electricity is conducted successively up to 5. For the (a) of the part (y), electricity is conducted from the winding 6. When the end points (c), (d) of the respective wall thickness parts come to the inductors I, the unnecessary windings are halted successively.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：在整个长度上均匀地加热具有不同壁厚的金属棒材料，同时以恒定的速度移动，通过形成用于加热到多圈型的电感器，允许分割成不规则的匝数，并且以编程方式将电力传导到不可靠的转动来加热。构成：用电感器I加热以恒定速度沿箭头方向移动的金属棒材A。材料A具有不同的壁厚（x），（y），（z）和所需的电感器的匝数将条材料加热至恒温。同时以这种速度移动，在壁厚部分（x）为10匝，部分（y）为15匝，部分（z）为20匝）。电感器I的黑点表示绕组在电传导下，白点表示绕组处于停止状态。部分（x）被加热10圈。当部分（z）的前端（b）到达绕组1时，这被检测到并且电被传导到绕组1.根据（b）的运动，电连续进行到5。对于部分（y）的（a）中，从绕组6传导电力。当各个壁厚部分的端点（c），（d）到达电感器I时，不必要的绕组被连续地停止。

56. 发明专利

JP2005146316A Method and apparatus for hardening rolling contact surface of metallic rotating ring 审中-公开
标题翻译：金属旋转环硬化接触面硬化方法及装置
公开(公告)号：JP2005146316A
公开(公告)日：2005-06-09
申请号：JP2003383177
申请日：2003-11-12
申请人： Dai Ichi High Frequency Co Ltd , 第一高周波工業株式会社
发明人： WATANABE YASUO , MIYAGAWA TADANOBU , TANABE MICHIO
IPC分类号： F16C33/64 , C21D1/10 , C21D9/40 , H05B6/04 , H05B6/06 , H05B6/10 , H05B6/36 , H05B6/44
CPC分类号： Y02P10/253
摘要： PROBLEM TO BE SOLVED: To prevent the voltage exceeding a regulated value from being applied to a worker when the induction-heating is performed with a large circle heating so as not to form a soft zone, even in the case of induction-heating a rolling-contact surface of a large diameter metallic rotating ring. SOLUTION: When the rolling-contact surface 23a of the metallic rotating ring 23 is hardened by utilizing the induction-heating, the plurality of inductors 30a, 30b, 30c are connected in the annular state so as to be faced to the rolling-contact surface 23a, and the large circle heating is performed by supplying the high-frequency current to these inductors 30. At this time, the voltage having ≤600V is applied to each of the inductors 30a, 30b, 30c and the voltage exceeding 600V in the total is applied. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在以大的圆加热进行感应加热而不形成软区的情况下将超过规定值的电压施加给工人，即使在感应加热的情况下，加热大直径金属旋转环的滚动接触面。解决方案：通过利用感应加热使金属旋转环23的滚动接触表面23a硬化时，多个电感器30a，30b，30c以环状连接，以面对轧制接触表面23a，并且通过向这些电感器30提供高频电流来执行大的圆形加热。此时，对每个电感器30a，30b，30c施加≤600V的电压，并且电压超过600V 在总共被应用。版权所有（C）2005，JPO＆NCIPI

57. 发明专利

JP2004127854A Moving heating method and moving heating device 审中-公开
公开(公告)号：JP2004127854A
公开(公告)日：2004-04-22
申请号：JP2002294179
申请日：2002-10-07
申请人： Dai Ichi High Frequency Co Ltd , 第一高周波工業株式会社
发明人： HANAMOTO YUKIMITSU , TANIGUCHI YASUYUKI , WATANABE YASUO , MORISHITA YOSHIYUKI , MINAGAWA TSUGIO
IPC分类号： H05B6/06 , H05B6/10 , H05B6/44
摘要： PROBLEM TO BE SOLVED: To provide techniques for enhancing heat input efficiency to the object to be heated and achieving uniform heating temperature, in moving heating for a long-length object to be heated.
SOLUTION: The moving heating method heats the object, in a manner that each of the portions in a longitudinal direction of the object is induction heated by a narrow width induction coil 12, with continuously moving the object relatively to the induction coil. A composite coil separated into a plurality of element coils 12a, 12b with respect to the moving direction is used as the induction coil 12. The same element coils are used in a form of non-conduction. Alternative current is applied by an alternative current applying mechanism 13 to each element coil 12a, 12b, alternatively on a time-sharing basis according to energizing conditions determined individually, thus achieving induction heating under desired conditions.
COPYRIGHT: (C)2004,JPO

58. 发明专利

JP2004018985A Method and apparatus for heat treatment of metallic rod material 审中-公开
公开(公告)号：JP2004018985A
公开(公告)日：2004-01-22
申请号：JP2002178988
申请日：2002-06-19
申请人： Dai Ichi High Frequency Co Ltd , 第一高周波工業株式会社
发明人： WATANABE YASUO , NISHIBABA KAZUNORI , YATABE KENJI
IPC分类号： C21D9/00
摘要： PROBLEM TO BE SOLVED: To apply the heat treatment without developing bending to a cylindrical or columnar metallic rod material having small diameter and long length, in a batch production.
SOLUTION: The upper and lower ends of the metallic rod material 1, are held with a holding device 2 and a tension device 7, and after heating and raising the temperature of the metallic rod material, it is cooled with a cooling device 20. The, during the cooling time, in at least the interval passing through temperature range from the transformation temperature + 50°C of the metallic rod material to the transformation temperature thereof, the tension developing the plastic deformation in the axial direction in the metallic rod material is applied by the tension device 7, and the material is held to the un-bending state.
COPYRIGHT: (C)2004,JPO

59. 发明专利

JP2001096309A DEVICE FOR INCREASING THICKNESS OF METALLIC BAR 失效
公开(公告)号：JP2001096309A
公开(公告)日：2001-04-10
申请号：JP27558499
申请日：1999-09-29
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , KISHIHARA SHIGEKI , TADA FUMIAKI , KITAYAMA NOBUYOSHI , MOCHIZUKI OSAMU , YOSHITOME TAKAHIRO , HAYASHI NAOKI
IPC分类号： B21C37/15 , B21J1/06
摘要： PROBLEM TO BE SOLVED: To provide a device which can easily increase the thickness of metallic bars in the specified area along the length without bending them, even for the large diameter and/or heavy weight. SOLUTION: In this device, the first truck 7, which loads the components such as the first guide unit 12 and the second guide unit 13 equipped with the rollers retaining the metallic bar 1, and an induction heating coil 31 for heating the bar 1, is traveled to a desired position and then stopped at the position. At the same time, the bar 1 is compressed at both ends by the first loading compression head 51 built up on a fixed support 50 and the second loading compression head 55 built up on the second moving support truck 54. Successively the bar 1, supported by the first and the second guide unit 12, 13, is heated to increase the thickness in the specified area by moving both the induction heating coil 31 and the second guide unit 13 along the length.

60. 发明专利

JP2001032059A PRODUCTION OF COATED ROLL 失效
公开(公告)号：JP2001032059A
公开(公告)日：2001-02-06
申请号：JP21019199
申请日：1999-07-26
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： MATSUBARA YOICHI , WATANABE YASUO , FUJITA MASATSUGU , SOJI YOSHINOBU
IPC分类号： C23C4/06 , C23C4/18
摘要： PROBLEM TO BE SOLVED: To provide a method for easily producing a coated roll having a constitution capable of executing the reproduction of a fused coating layer of a self-fluxing alloy at a low cost. SOLUTION: The barrel part of a metallic roll 2 is freely fitted with a metallic cylinder 3A having large inside diameter, the metallic cylinder is subjected to hot upsetting for reducing its length and is therefore fitted to the barrel part to form into a metallic sleeve firmly fixed to the barrel part, next, the outer circumferential face of the metallic sleeve is applied with a coating material of a self-fluxing alloy to form a primary coating layer, and after that, the primary coating layer is heated and fused to form a fused coating layer. At the time of reproducing the fused coating layer, by renewing the metallic sleeve, the renewing of the metallic roll body is made needless, and the reduction of the cost can be attained.

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