公开(公告)号：US4250606A

公开(公告)日：1981-02-17

申请号：US105621

申请日：1979-12-20

Applicant: Itsuo Korenaga

Inventor： Itsuo Korenaga

IPC: F16C13/00 ,  B23P25/00 ,  B24B1/00 ,  B29C33/04 ,  B29C43/24 ,  B29C69/00 ,  B29D99/00 ,  B29C17/08 ,  B21K1/00

CPC classification number: B29C43/24 ,  B24B1/00 ,  B29C33/044 ,  B29C69/00 ,  B29D99/0035 ,  B29C47/0016 ,  B29C47/0023 ,  B29C47/0033 ,  B29L2031/324 ,  Y10T29/49544 ,  Y10T29/49758

Abstract: Method for correcting deflection of a plastic roll under conditions of use. A drilled roll for processing thermoplastic material such as vinyl or the like is deflected during the use due to a thermal distortion to cause a thickness fluctuation in the rolled products. To extinguish this deflection, the roll is corrected by a process having the steps of heating the roll up to the operating temperature, measuring the amount and direction of the deflection of the heated roll, cooling the roll to the room temperature, mechanically imparting to the roll a deflection of the same amount and direction as those observed in the heated roll, and processing the roll by grinding the roll in the mechanically deflected state. After the processing, the roll exhibits an apparent deflection of the same amount in the opposite direction to those exhibited in the heated state, as it is relieved from the mechanical deflecting force. Then, as the roll is heated to the operating temperature before the rolling work, the roll is thermally deflected to negate the apparent deflection so that the rolling is effected by the roll surface having no apparent deflection.

Abstract translation: 在使用条件下校正塑料辊的挠曲的方法。 用于加工热塑性材料如乙烯基等的钻孔辊在使用过程中由于热变形而偏转，导致轧制产品的厚度波动。 为了消除该偏转，通过以下步骤来校正辊，该方法具有以下步骤：将辊加热到工作温度，测量加热辊的偏转量和方向，将辊冷却至室温，机械地赋予 滚动与在加热辊中观察到的相同量和方向的偏转，并且通过在机械偏转状态下研磨辊来加工辊。 在处理之后，辊在与机械偏转力相抵消的情况下，在与加热状态相反的方向上具有相同量的明显偏转。 然后，当轧辊在轧制加工之前被加热到工作温度时，辊被热偏转以消除明显的偏转，使得轧制由没有明显偏转的辊表面实现。

公开(公告)号：US5403670A

公开(公告)日：1995-04-04

申请号：US170867

申请日：1993-12-21

Applicant: Takuya Ohsue ,  Akira Noda ,  Hiroshi Fukuzawa ,  Itsuo Korenaga

Inventor： Takuya Ohsue ,  Akira Noda ,  Hiroshi Fukuzawa ,  Itsuo Korenaga

IPC: B21B27/00 ,  B21B27/02 ,  B21B27/03 ,  B22F3/14 ,  B22F5/10 ,  B22F7/04 ,  B22F7/06 ,  C21D9/38 ,  C22C33/02 ,  C22C38/00 ,  C22C38/38

CPC classification number: B22F5/106 ,  B21B27/00 ,  B21B27/02 ,  B22F5/10 ,  B22F7/06 ,  C22C33/0257 ,  B22F2998/00 ,  Y10T428/12063 ,  Y10T428/12139

Abstract: The crack-resistant compound sleeve roll having a shell portion made of a sintered alloy and a core portion made of steel is produced by (a) charging an alloy powder consisting essentially, by weight, of 1.0-3.5% of C, 2% or less of Si, 2% or less of Mn, 10% or less of Cr, 3.0-15.0% of W, 2.0-10.0% of Mo and 1.0-15.0% of V, the balance being substantially Fe and inevitable impurities, into a metal capsule disposed around a roll core; (b) after evacuation and sealing, subjecting the alloy powder to a HIP (hot isostatic pressing) treatment at 1100.degree.-1300.degree. C. to form a shell portion; (c) after removing the metal capsule, subjecting the sintered shell portion to a heat treatment having hardening at 1140.degree.-1220.degree. C. and annealing at 540.degree.-620.degree. C.; and (d) chamfering edge portions of the roll on both axial ends thereof such that a boundary of the shell portion and the core portion exists in a chamfered surface.

Abstract translation: 具有由烧结合金制成的壳体部分和由钢制成的芯部的耐裂纹复合套筒辊通过以下步骤制备：（a）将基本上重量为1.0-3.5％的C，2％或 较少的Si，2％以下的Mn，10％以下的Cr，3.0〜15.0％的W，2.0〜10.0％的Mo和1.0〜15.0％的V，余量基本上是Fe和不可避免的杂质， 金属胶囊设置在卷芯周围; （b）抽真空密封后，在1100〜1300℃下对合金粉进行HIP（热等静压）处理，形成壳部; （c）除去金属胶囊后，对烧结壳部进行1140〜1220℃的硬化处理，在540〜-620℃进行退火。 和（d）在其两个轴向端上使辊的边缘部分倒角，使得壳体部分和芯部的边界存在于倒角表面中。

公开(公告)号：US5010946A

公开(公告)日：1991-04-30

申请号：US368393

申请日：1989-06-06

Applicant: Shingo Nogami ,  Toshinori Yashiro ,  Toshio Okitsu ,  Kiyoshi Furushima ,  Itsuo Korenaga

Inventor： Shingo Nogami ,  Toshinori Yashiro ,  Toshio Okitsu ,  Kiyoshi Furushima ,  Itsuo Korenaga

IPC: B22D17/20

CPC classification number: B22D17/203 ,  B22D17/2023

Abstract: The die casting cylinder includes an outer cylindrical member made of a metal and a ceramic inner cylindrical member, in a boundary between which a plurality of voids are provided. The voids are preferably grooves provided in an inner surface of the outer cylindrical member of in an outer surface of the inner cylindrical member, with a width "a" and a distance "b" satisfying an a/b ratio of 1:1-6:1.

Abstract translation: PCT No.PCT / JP88 / 01018 Sec。 371日期：1989年6月6日 102（e）日期1989年6月6日PCT提交1988年10月6日PCT公布。 出版物WO89 / 03263 日本1989年4月20日。压铸圆筒包括由金属制成的外圆柱形构件和陶瓷内圆柱形构件，在其间设置有多个空隙的边界。 空隙优选为设置在内筒部件的外表面的外筒部的内表面的槽，宽度“a”，距离“b”满足a / b比为1：1-6 ：1。