Evaluation method for cleanliness of metal
    1.
    发明授权
    Evaluation method for cleanliness of metal 失效
    金属清洁度评价方法

    公开(公告)号:US5985674A

    公开(公告)日:1999-11-16

    申请号:US737839

    申请日:1996-12-13

    IPC分类号: G01N33/20 G01N21/64

    摘要: In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and directly analyzing a curved and non-smooth sample surface after solidification by a fluorescent X-ray analysis method using an energy dispersion type spectroscope, or by other chemical or physical measurements, to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.

    摘要翻译: PCT No.PCT / JP96 / 00650 Sec。 371日期1996年12月13日第 102(e)日期1996年12月13日PCT提交1996年3月14日PCT公布。 公开号WO96 / 28729 日期1996年9月19日为了快速,经济地评价金属含量高的金属的含量,组成等对金属中存在的金属夹杂物的数量,组成等造成产品缺陷的清洁度, 本发明提供了一种评价方法,其包括以下步骤:通过冷坩埚悬浮熔化装置将金属片悬浮熔融预定时间,将包含在金属片中的非金属夹杂物颗粒排出到 熔融金属,并且通过使用能量分散型分光器的荧光X射线分析方法或通过其他化学或物理测量直接分析固化后的弯曲和非光滑样品表面,以测量或分析构成 非金属夹杂物颗粒并确定非金属夹杂物的量。

    Method for regulating flow of molten steel within mold by utilizing
direct current magnetic field
    2.
    发明授权
    Method for regulating flow of molten steel within mold by utilizing direct current magnetic field 失效
    利用直流磁场调节模具内钢水流动的方法

    公开(公告)号:US5657816A

    公开(公告)日:1997-08-19

    申请号:US549735

    申请日:1996-02-23

    CPC分类号: B22D11/115

    摘要: The present invention provides a method, for regulating the flow of a molten steel within a mold by taking advantage of a direct current magnetic field, comprising the step of carrying out continuous casting while regulating the flow of a molten steel, delivered through a nozzle, by applying a direct current magnetic field having a substantially uniform magnetic flux distribution over the whole width direction of the mold, characterized in that the flow velocity of a meniscus on the surface of the molten steel within the mold is regulated in a range of from 0.20 to 0.40 m/sec by regulating the molten steel delivery angle of the nozzle, the position of the magnetic field, and the magnetic flux density. When the flow velocity of the meniscus is greatly increased, a stream of the molten steel delivered through the nozzle is allowed to collide directly with a short-side wall of the mold and, thereafter, the flow velocity is regulated according to the following equation (1), while, when the flow velocity of the meniscus is increased or decreased, a stream of the molten steel delivered through the nozzle is allowed to traverse a magnetic field zone and then to collide with a short-side wall of the mold and, thereafter, the flow velocity is regulated according to the following equation (2):V.sub.P /V.sub.O =1+.alpha..sub.1 {1-exp(-.beta..sub.1 .multidot.H.sup.2)}(1)V.sub.P /V.sub.O =1+.alpha..sub.2 {sin (.beta..sub.2 .multidot.H)exp(-r.multidot.H)} (2)wherein H=185.8.multidot.B.sup.2 .multidot.D.multidot.T/(D+T)V.

    摘要翻译: PCT No.PCT / JP94 / 00513 Sec。 371日期1996年2月23日 102(e)日期1996年2月23日PCT 1994年3月29日PCT公布。 公开号WO95 / 26243 日期:1995年10月5日本发明提供了一种通过利用直流磁场来调节模具内的钢水流动的方法,包括在调节钢水流动的同时进行连续铸造的步骤, 通过在模具的整个宽度方向施加具有基本上均匀的磁通分布的直流磁场,通过喷嘴输送,其特征在于,模具内的钢水表面上的弯液面的流速被调节在 通过调节喷嘴的钢水输送角度,磁场的位置和磁通密度,从0.20到0.40m / sec的范围。 当弯月面的流速大大增加时,通过喷嘴输送的钢水流被直接与模具的短边壁碰撞,然后根据下式来调节流速( 1),而当弯月面的流速增加或减小时,允许通过喷嘴输送的钢水流过磁场区,然后与模具的短边壁碰撞, 此后,流速根据以下等式(2)进行调节:VP / VO = 1 +α1{1-exp(-β1XH2)}(1)VP / VO = 1 +α2{sin(β2×H )exp(-rxH)}(2)其中H = 185.8×B 2×D×T /(D + T)V。

    Lid for heat-sealing container
    5.
    发明授权
    Lid for heat-sealing container 失效
    盖用于热封容器

    公开(公告)号:US4771937A

    公开(公告)日:1988-09-20

    申请号:US021860

    申请日:1987-03-04

    摘要: An improved lid for heat-sealing a container is proposed which comprises a substrate and an outer peel layer laminated to the substrate through two adhesive layers, one of which has a weaker adhesion strength than the other. The substrate has a base sheet and is formed with such a discontinuous cut outlining an opening that a tear starting from the end of one cut will be received by the front end of a cut next to the cut, and a partial opening will be formed in the substrate.

    摘要翻译: 提出了一种用于热封容器的改进盖,其包括通过两个粘合剂层层合到基底上的基底和外剥离层,其中一个具有比另一个粘合层更弱的粘合强度。 基板具有基片,并且形成有这样的不连续切口,该开口使得从切口的端部开始的撕裂将被切割件的切割部的前端容纳,并且将形成部分开口 底物。

    Evaluation apparatus for cleanliness of metal and method thereof
    9.
    发明授权
    Evaluation apparatus for cleanliness of metal and method thereof 有权
    金属清洁度评价装置及其方法

    公开(公告)号:US06432718B1

    公开(公告)日:2002-08-13

    申请号:US09404990

    申请日:1999-09-22

    IPC分类号: G01N134

    摘要: In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and directly analyzing a curved and non-smooth sample surface after solidification by dissolving the surface and extracting and filtering the inclusions to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.

    摘要翻译: 为了快速,经济地评估具有高代表性的金属的清洁度,当金属中存在的非金属夹杂物颗粒的数量,组成等等,并且由金属制造过程中收集的样品评估产品缺陷时 本发明提供一种评价方法,包括以下步骤:通过冷坩埚悬浮熔化装置将金属片悬浮熔融预定时间,将包含在金属片中的非金属夹杂物颗粒排出到熔融金属表面;以及 通过溶解表面并提取和过滤夹杂物来直接分析固化后的弯曲和非光滑样品表面,以测量或分析构成非金属夹杂物颗粒的元素的量并确定非金属夹杂物的量。

    Apparatus for continuous casting of metal
    10.
    发明授权
    Apparatus for continuous casting of metal 失效
    金属连续铸造设备

    公开(公告)号:US06336496B1

    公开(公告)日:2002-01-08

    申请号:US08931848

    申请日:1997-09-16

    IPC分类号: B22D2702

    CPC分类号: B22D11/115

    摘要: An object of the present invention is to provide a process for continuously casting a molten metal which process suppresses the instability of the initial solidification and stably improves the lubrication and the surface properties of the cast metal, and an apparatus therefore, in the process for continuously casting a molten metal an alternating current is applied to an electromagnetic coil which is provided so that it surrounds a continuous casting mold wall or is embedded in the side wall of the mold, whereby an electromagnetic force is exerted on the molten metal poured into the mold which either oscillates in a constant mode or does not oscillate and is starting to be solidified the process of the present invention also comprises periodically changing the amplitude or waveform of the alternating current to be applied, and the apparatus of the present invention is used for the process.

    摘要翻译: 本发明的目的是提供一种连续铸造熔融金属的方法,该方法抑制初始凝固的不稳定性并且稳定地改善铸造金属的润滑和表面性能,因此在连续的方法中 铸造熔融金属交替电流被施加到电磁线圈,电磁线圈被设置成使得其围绕连续铸模壁或嵌入在模具的侧壁中,由此电磁力施加到浇注到模具中的熔融金属上 其以恒定模式振荡或不振荡并且开始固化,本发明的方法还包括周期性地改变要施加的交流电流的幅度或波形,并且本发明的装置用于 处理。