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1. 发明专利

JPS5735633A Heat treatment of metallic thin strip 失效
标题翻译：金属薄条热处理
公开(公告)号：JPS5735633A
公开(公告)日：1982-02-26
申请号：JP10832280
申请日：1980-08-08
申请人： Hitachi Ltd , Hitachi Metals Ltd
发明人： SUZUKI HIDEO , TOMITA SADAMI
IPC分类号： H01F1/153 , C21D6/00 , C21D9/52 , C22C45/02 , C22F1/00
CPC分类号： C21D9/52
摘要： PURPOSE:To improve the magnetic flux density and square ratio of a metallic thin strip and reduce its coercive force by heat treating the thin strip wherein at least one face of an Fe-No-Si-B alloy is amorphous, at temps. near differential absorption heat initiation temp. CONSTITUTION:A thin strip of 6-14 B atom %, 8-14 Si, 4-12 Ni, the balance Fe, wherein at least one face is amorphous is heat treated at the temp. near the differential absorption heat initiation temp. of the heating differential heat quantity curve of said metal. This thin strip can be produced by, for example, a single roll method or the like, and the face where no cracking occurs at 180 deg. bending is amorphous. The differential absorption and release heat initiation temps. Ta, Tb of the typical heating differential heat quantity curve of said alloy thin strip vary slightly with the compositions of the thin strip, but the heat treatment temp. is set at near the Ta, that is, Ta+ or -25 deg.C. Thereby, coercive force is increased and magnetic density is decreased at high temps., and there is no marked effect at the heat treatment at temps. lower than these.
摘要翻译：目的：为了提高金属薄带的磁通密度和平方比，通过热处理Fe-No-Si-B合金的至少一面是非晶态的薄带来减少其矫顽力。近差分吸收热开始温度构成：将6-14B原子％，8-14Si，4-12Ni，余量为Fe的薄带，其中至少一面是无定形的在温度下进行热处理。接近差示吸收热开始温度。的所述金属的加热差热量曲线。该薄带可以通过例如单辊法等形成，也可以在180度不发生龟裂的面。弯曲是无定形的。差分吸收和释放热引发温度。所述合金薄带的典型加热差热量曲线的Ta，Tb随薄带组成而略有变化，但热处理温度。设在Ta附近，即Ta +或-25℃。因此，在高温下，矫顽力增加，磁密度降低，在温度下的热处理没有明显的效果。低于这些。

2. 发明专利

JPS55165261A ROLL DEVICE FOR RAPID COOLING OF MOLTEN METAL 失效
公开(公告)号：JPS55165261A
公开(公告)日：1980-12-23
申请号：JP7358279
申请日：1979-06-13
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SUZUKI HIDEO , IKUTA ISAO , TOMITA SADAMI , ISHIHARA JIYOU , TAMAMURA TAKEO
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent flying of molten metal and make the shape of frozen metal thin strip surface even by providing the coating layer of metal of good wettability with molten metal on the surface of a roll made of metal of good heat conductivity. CONSTITUTION:The surface of a roll 6 of metal of good heat conductivity such as copper or copper alloy is coated with material which is difficult to be abraded by molten metal of iron, chromium, nickel or their alloys by such a method as chemical plating. When this roll 6 is rotated in the arrow direction and molten metal 3 is spouted from the end of a nozzle 2 onto the surface thereof, the fyling of the molten metal is prevented and the cooling capacity of the roll is improved as well by the improvement in adhesiveness. The surface roughness and the sectional shape of the resultant amorphous metal thin strip 4 may be considerably improved.

3. 发明专利

JPS5536029A METHOD AND DEVICE FOR TAKINGGUP THIN MAGNETIC METAL BELT 失效
公开(公告)号：JPS5536029A
公开(公告)日：1980-03-13
申请号：JP10849778
申请日：1978-09-06
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SUZUKI HIDEO , TOMITA SADAMI , IKUTA ISAO , ISHIHARA JIYOU
IPC分类号： B21C47/02 , B22D11/06
摘要： PURPOSE:To enable continuous high speed taking-up by guiding the molten metal spouting out on the outer circumference of cooling roll to the rotating magnet by shifting magnetic field. CONSTITUTION:The molten metal 3 brought to molten state in the nozzle 1 spouts out from the opening 10 and lead onto the cooling roll rotaing at a high speed and solidifies by rapid cooling. The metallic material that changed into a thin belt is stripped off from the surface of the cooling roll 4 by centrifugal force and the gas sputing from the nozzle 5 and blown up. Then, the thin metal belt is attracted to the end portion of a group of magnets 8 that generate shifting magnetic field through the guide plate 7 successively from the tip by its own weight and guided by the group of magnets. Further, it is sent to ward the take-up bobbin 9 in conformity to the change of shifting magnetic field and attracted by the take-up bobbin 9 of electromagnetic structure and continuously taken up at a desired speed.

4. 发明专利

JPS5736041A Twin roll type thin metallic strip producing device 失效
标题翻译：空值
公开(公告)号：JPS5736041A
公开(公告)日：1982-02-26
申请号：JP11024480
申请日：1980-08-13
申请人： Hitachi Ltd , Hitachi Metals Ltd
发明人： IKUTA ISAO , ISHIHARA JO , SUZUKI HIDEO , TAMAMURA TATEO , TOMITA SADAMI
IPC分类号： B22D11/06
摘要： PURPOSE: To reduce the polishing time for rolls by producing an amorphous metallic tape with a pair of rolls which consist of the same material but differ in surface hardness and producing damages of rolls only on the one roll.
CONSTITUTION: A high hardness roll 4 of ≥Hv700 surface hardness and a low hardness roll 5 having a difference of ≥Hv300 in hardness from said roll are provided, and molten metal 2 melted in a heat resistance crucible 1 is ejected via a nozzle 9 onto the surface of the roll 4, whereby it is rolled to a thin metallic strip 8. Thereby, the surface roughening of the roll 4 is eliminated at all. The roughened surface of the roll 5 is polished by a polishing tool provided. Therefore, the considerable reduction of working time is made possible.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过生产具有由相同材料组成但具有不同表面硬度的一对辊的非晶金属带来减少辊的抛光时间，并且仅在一个辊上产生辊的损伤。构成：提供具有> = Hv700表面硬度的高硬度辊4和具有与所述辊的硬度差≥Hv300的低硬度辊5，并且在耐热坩埚1中熔化的熔融金属2经由喷嘴 9到辊4的表面上，由此被轧制成薄的金属条8.由此，完全消除了辊4的表面粗糙化。辊5的粗糙表面通过所提供的抛光工具进行抛光。因此，可以大大减少工作时间。

5. 发明专利

JPS56119650A ROLL FOR QUICK COOLING OF MOLTEN METAL 失效
公开(公告)号：JPS56119650A
公开(公告)日：1981-09-19
申请号：JP2060380
申请日：1980-02-22
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： IKUTA ISAO , ABE TAKAO , SUZUKI HIDEO , ISHIHARA NOBORU , TAMAMURA TATEO , TOMITA SADAMI
IPC分类号： B22D11/06
摘要： PURPOSE:To improve the abrasion resistance and reduce the degradation in surface accuracy with an increase in the times of use by constituting a roll for cooling of molten metal with a high-speed steel or superhard alloy and forming a carbide coating layer on the circumferential surface thereof. CONSTITUTION:In a roll for cooling and solidifying the molten metal ejecting from a nozzle by allowing the same to contact on the circumferential surface thereof, a high-speed steel or superhard alloy which does not cause degradation in its hardness despite the rise in surface temp. and the hardness of which itself is high is used for the roll body. Next, a carbide coating layer having hardness about 3 times higher than that of a nitride coating layer is formed as the coating layer. These yield the roll which is much superior to that when a nitride coating layer is used. Here, the suitable thickness of the carbide nitride layer is about 5- about 100mum.

6. 发明专利

JPS56119648A PRODUCTION OF AMORPHOUS ALLOY STRIP 失效
公开(公告)号：JPS56119648A
公开(公告)日：1981-09-19
申请号：JP2060180
申请日：1980-02-22
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SUZUKI HIDEO , TOMITA SADAMI
IPC分类号： B22D11/06 , C22C33/00
摘要： PURPOSE:To produce an Fe-B-C strip of superior square type hysteresis at high magnetic density by forcedly peeling the amorphous metal strip from rolls while the strip has still temperature differences between the roll face side and the opposite side thereof. CONSTITUTION:In a method for producing an amorphous alloy strip by ejecting molten metal from a nozzle, allowing the same to contact roll surfaces thereby quickly soldifying the same, the molten steel ejection temp. is increased and by increasing roll peripheral speeds, the temp. difference between the roll face side and free face side of the strip is increased, thence a strip peeling gas is ejected from the nozzle, by which the strip is forcedly peeled from the rolls. The peeled strip is again heated by the latent heat of the solidification on the free face side when the roll face side having solidified before by the contact with the rolls has not yet solidifed, by which the cooling rate on the roll face side is lowered and the surface thereof shows a brown color and assumes the state that fine cracks are produced in a 180 deg. bending test.

7. 发明专利

JPS5732855A Production of thin metallic strip 失效
标题翻译：生产薄金属条
公开(公告)号：JPS5732855A
公开(公告)日：1982-02-22
申请号：JP10832480
申请日：1980-08-08
申请人： Hitachi Ltd , Hitachi Metals Ltd
发明人： IKUTA ISAO , ISHIHARA NOBORU , SUZUKI HIDEO , TAMAMURA TATEO , TOMITA SADAMI
IPC分类号： B22D11/06
摘要： PURPOSE: To prevent the inclusion of solidifying splashes at the end of ejection and improve the life of rolls by pressing one roll to the other roll while ejecting molten metal from a nozzle and opening the rolls at the end of the ejection.
CONSTITUTION: Molten metal 3 is ejected from a nozzle 4 of a heat resistant vessel pipe 1 into between a pair of rolls 6, 7, and at least one roll 7 is pressed to the other roll 6, whereby the molten metal 3 is rolled. Next, the time when the ejection of the molten metal from the nozzle 4 appears to end is detected with a detector 5. Then, immediately the pressing operation of the pressing device 8 for the roll 7 is stopped to release the pressure, so that the splashes produced at the end of the ejection are prevented from scattering by cooling and solidifying and from being included between the rolls 6 and 7.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了防止在喷射结束时包含固化飞溅，并通过将一个辊压到另一个辊上，同时从喷嘴喷出熔融金属并在喷射结束时打开辊来延长辊的使用寿命。构成：将熔融金属3从耐热容器管1的喷嘴4喷射到一对辊6,7之间，并且至少一个辊7被压向另一个辊6，由此熔融金属3被轧制。接下来，用检测器5检测熔融金属从喷嘴4的喷射出现的时间。然后，立即停止用于辊7的按压装置8的按压操作以释放压力，使得在喷射结束时产生的飞溅物通过冷却和凝固而被防止散射并且被包括在辊6和7之间。

8. 发明专利

JPS5732854A Producing device for amorphous metallic tape 失效
标题翻译：生产非晶金属胶带的装置
公开(公告)号：JPS5732854A
公开(公告)日：1982-02-22
申请号：JP10832380
申请日：1980-08-08
申请人： Hitachi Ltd , Hitachi Metals Ltd
发明人： IKUTA ISAO , SUZUKI HIDEO , ISHIHARA NOBORU , TAMAMURA TATEO , TOMITA SADAMI
IPC分类号： B22D11/06
摘要： PURPOSE: To solidify roll contact side, adhere free face side in a semimolten state and obtain an amorphous tape of twice thickness by ejecting molten metal to a pair of roll surfaces respectively from the right and left of a nozzle.
CONSTITUTION: Ejection ports 2, 3 for molten metal are provided to the right and left symmetrical positions of one piece of quartz tube 1, at 30W120°C angles α of ejection to eject molten metal simultaneously onto the surfaces of rolls 4, 5. Then, the side of molten metal 7 in contact with the rolls 4, 5 is cooled and solidified and the free side is held in a semimolten state. These are adhered at the contact point 6 of the rolls 4, 5, whereby an amorphous metallic tape 8 of twice thickness is obtained directly from the molten metal 7. If a partition plate 9 is installed to the tube 1, a composite metallic tape is obtained.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了使辊接触侧固化，将自由面侧面保持半固态状态，通过将熔融金属从喷嘴的左右分别喷射到一对辊面上，得到两倍厚度的无定形带。构成：用于熔融金属的喷射口2,3被提供到一块石英管1的左右对称位置，以30-120度角的喷射角度α同时喷射到辊4的表面上，然后，与辊4,5接触的熔融金属7的一侧被冷却和固化，并且自由侧保持在半成型状态。这些粘附在辊4,5的接触点6处，由此直接从熔融金属7获得两倍厚度的无定形金属带8.如果将隔板9安装到管1上，则复合金属带是获得。

9. 发明专利

JPS5732853A Producing device for amorphous metallic wire 失效
标题翻译：生产非晶金属线器件
公开(公告)号：JPS5732853A
公开(公告)日：1982-02-22
申请号：JP10832180
申请日：1980-08-08
申请人： Hitachi Ltd , Hitachi Metals Ltd
发明人： IKUTA ISAO , ISHIHARA NOBORU , SUZUKI HIDEO , TAMAMURA TATEO , TOMITA SADAMI
IPC分类号： B22D11/06
摘要： PURPOSE: To cool and solidify molten metal, roll the unsolidified part in other groove and obtain an amorphous wire of a circular shape in section by ejecting molten metal into one of the opposite continuous grooves of a pair of rolls.
CONSTITUTION: Molten metal 2 is ejected into the groove 3a of a grooved roll 3 via a nozzle 1. Then, the part in contact with the groove 3a of the molten metal 2 is cooled and solidified by the heat medium effect of the roll, and the part not in contact with the groove is unsolidified. In this state, it arrives at the contact point 6 of the rolls 3, 4, where the unsolidified part is rolled, cooled and solidified by the roll 4, whereby the amorphous wire of a circular shape in section is obtained.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了冷却和固化熔融金属，将未固化部分卷入其他槽中，通过将熔融金属喷射到一对辊的相对的连续槽中的一个中，得到圆形截面的非晶形线。构成：熔融金属2经由喷嘴1喷射到带槽辊3的槽3a中。然后，通过辊的热介质效应使与熔融金属2的槽3a接触的部分被冷却和固化，并且与槽不接触的部分是不固化的。在这种状态下，它到达辊3,4的接触点6，其中未固化部分被辊4滚压，冷却和固化，从而获得截面为圆形的非晶线。

10. 发明专利

JPS5684421A METAL STEEL TREATING METHOD 失效
公开(公告)号：JPS5684421A
公开(公告)日：1981-07-09
申请号：JP16032679
申请日：1979-12-12
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SUZUKI HIDEO , TOMITA SADAMI
IPC分类号： C21D6/00 , C21D9/52 , C22C45/02 , C21D9/46
摘要： PURPOSE:To increase the residual magnetic flux density and to decrease the coercive force by having an Fe-B-C based alloy sheet undergo a heat treatment at a temperature close to the beginning temperature of thermogram heat absorption in the alloy's thermogram curve. CONSTITUTION:Molten metal of an Fe-B-C alloy consisting of: B; 12-16atomic%, C; 3-8atomic%, the sum of B and C; 19-21atomic%, and the remaining Fe is rapidly cooled by bringing it contact with the surface of a high-speed rotating roll, thereby producing a 10-50mum thick sheet having amorphous state at one side. The sheet is wound on a silica bobbin in troidal state at the temperature range within + or -25 deg.C of thermogram heat absorption beginning temperature Ta of the alloy's thermogram curve, then is maintained at 270-390 deg.C for one hour, and cooled to room temperature at a rate 15 deg.C/min. This process increases the residual magnetic flux of the sheet and decreases the coercive force.

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