外文翻译--美国5829117 号专利-热锯机锯切式连续轧制方法及它的装置

附录 3 附录3美国5829117 号专利热锯机锯切式连续轧制方法及它的装置美国专利局发布于1998 年11 月3 日有效期至2017 年1 月30 日摘要一种热锯锯切与连续轧制方法使得可以连续同时铸造两根钢坯，能用热锯机将钢坯切成预定的长度，能通过一连接装置直接提供由轧制线生产的钢坯，能用以闪光对焊机不断地将钢坯焊接成一连续的钢坯，能用磨床将钢坯焊缝处的毛刺去除，用感应加热器将钢坯加热到一更高温度后可以通过一轧机群连续轧制钢坯。一种热锯锯切与连续轧制的装置可以提供以上所描述的加工方法。专利权项专利权项有：1、一种热锯锯切与连续轧制方法由以下几步构成：连续同时铸造连根钢坯；用热锯机将钢坯切成预定长度；通过一连接装置提供由轧制线生产的钢坯；用以闪光对焊机不断地将钢坯焊成一连续的钢坯；用磨床将钢坯焊缝处的毛刺去除；用感应加热器将钢坯加热到更高温度并通过一轧机群连续轧制钢坯。2、一种热锯锯切与连续轧制装置构成如下：一能同时铸造两根钢坯的铸造机器；一安装在铸造线上的移动热锯机；一连接装置，安装在铸造线与轧制线直接，能交 切 处 得的钢坯 ；一移动式闪光对焊机，安装在连接装置的 ，能将钢坯 不断的附录 3 焊成一连续的钢坯；一移动式磨床，安装在移动式闪光对焊机的 ，能去除钢坯焊缝处的毛刺；一感应加热器，安装在移动式磨床的 ，能将连续的钢坯加热到一更高温度；一轧机群 ，用于轧制 加热到上述更高温度的钢坯。3、权项2 的连接装置构成如下：一 式 机，安装在轧机线的一 ，将铸造线提供的钢坯 到轧制线；一 式 机，安装在轧制线的 一 ，将 一 铸造线的钢坯 到轧制线。、一种热锯锯切与连续轧制装置构成如下：一能同时铸造两根钢坯的铸造机器；一安装在铸造线上的移动热锯机；一连接装置，安装在铸造线与轧制线 ，能通过 动到预定 度交切 处 得的钢坯 ；一移动式闪光对焊机，安装在连接装置的 ，能将钢坯 不断地焊成一连续的钢坯；一移动式磨床，安装在移动式闪光对焊机的 ，能去除钢坯焊缝处的毛刺；一感应加热器，安装在移动式磨床的 ，能将连续的钢坯加热到一更高温度；一轧机群 ，用于轧制 加热到上述更高温度的钢坯。5、权项 的连接装置构成如下：一能 动到一预定 度的 ，可以将钢坯 由一 到一 的 线上。述附录 3 发 的 1、发 的 发 于一种连续的轧制方法，轧制的钢坯由一连续的铸造机提供。要的，发 于一种连续的轧制方法currency1装置。在种装置，可以直接提供两根钢坯并由热锯机锯切。锯切的钢坯用闪光对焊机焊接在一“，并磨去毛刺。 后生成的钢坯 感应加热到更高温度后轧制。2、fi及的fl 钢坯连轧法一种有效的能轧制方法。它可以生产 、钢currency1钢。如，日 的专利 ”52 375 号提 的钢坯连轧法 ，钢坯由一连续铸造机提供，后钢坯 热锯机切成预定长度，切断后 时 钢坯 加热加热，后 加热的钢坯 用闪光对焊机焊接在一“，毛刺 钢坯器上的成去除。 后连续的钢坯 感应加热器加热到轧制所的温度 使得加热的连续的钢坯由轧机群 轧制。在种 的连轧法 ，钢坯 由温20加热到1000，以 到轧制所的 温度1020。 加 加热的成。 ，连续铸造能 currency1连续轧制能 的不同 钢坯铸造线currency1轧制线的直接连接。 不可 的 使用 的 并 用 的 。更要的，成 用去除钢坯闪光对焊 的毛刺。 使得钢坯 焊接 后成的 不能连续的工 。 使得在 以 成去除毛刺的工 。项发 的摘要项发 的的 上述的并提供一种连续轧制的方法currency1它的装置。 使得一步能currency1 并 得更高的效 成 可能。项发 的热锯连轧法由以下几步构成：连续地铸造两根钢坯；用热锯机将钢坯锯成预定长度；通过连接装置将锯切的钢坯直接 到轧制线；用闪光对焊机连续地焊接钢坯 ；用磨床磨去除焊接钢坯的毛刺；用感应加热器将连续的钢坯加热到更高温度；通过轧机群 连续地轧制钢坯。，热锯连轧装置包括：一能连续同时铸造两根钢坯的铸造机；安附录 3 装在各自铸造线上的移动式热锯机；安装在铸造线与轧制线 的连接装置，它能交 锯切处的钢坯；安装在 装置 的移动式闪光对焊机，它能将钢坯 不断地焊成连续的钢坯；安装在移动式闪光对焊机 的移动式磨床，它能去除连续钢坯焊缝处的毛刺；安装在移动式磨床 处的感应加热器，它能将连续的钢坯加热到一更高温度；一轧机群 ，它能轧制 加热到上述更高温度的连续钢坯。次，热锯连轧装置包括：一能连续同时铸造两根钢坯的铸造机；安装在各自铸造线上的移动式热锯机；安装在铸造线与轧制线 的连接装置，它能 到预定 度 可交 锯切的钢坯；安装在 装置 的移动式闪光对焊机，它能将钢坯 不断地焊成连续的钢坯；安装在移动式闪光对焊机 的移动式磨床，它能去除连续钢坯焊缝处的毛刺；安装在移动式磨床 处的感应加热器，它能将连续的钢坯加热到一更高温度；一轧机群 ，它能轧制 加热到上述更高温度的连续钢坯。通过发 ，钢坯铸造线currency1轧制线 一连接装置 歇的连接在一“，消除 使用加热的要。加热在 方法 见。 使得加热得到有效利用。 感应加热器只将钢坯 100加热到920以及在铸造机输 端将钢坯加热到轧制温度1020, 加热成得到 幅度的减少。 连铸线只有一 时 平衡连铸能 currency1连轧能 ， 将连铸线数提高到两根。将两 连铸线currency1一 连轧线通过一 装置连接在一“时一种有效地方式，它平衡 连铸能 currency1连轧能 。 ，连铸线有3根或更 时，一干扰铸造线上的热锯机的热锯机 不能放置 。， 热锯机的使用，使得切断面平整有则， 减少 闪光对焊机的焊接时 。磨床 用去除焊缝处的毛刺， 使得 长，即使形成的一步骤在焊接 也能 成去除毛刺的工 。上所述，钢坯铸造线currency1轧制线由一连接装置 歇的连接在一“， 加热的使用，有效的 能currency1降低 加热成。 ，由于两 铸造线的使用，连接装置得以有效平衡 连铸能 currency1连轧能 。附录 3 使得与 相比 。再次，由于减少 闪光对焊的时 ， 延长 磨床的 ，满足 连轧的要求。US Patent 5829117 - Hot saw cutting typecontinuous rolling method and apparatus thereofUS Patent Issued on November 3, 1998Estimated Patent Expiration Date: January 30, 2017AbstractA hot saw cutting type continuous rolling method comprises casting two strand billets continuously； cutting the billets to predetermined length by hot saws； directly feeding billet portions obtained by cutting onto a rolling line via a line connecting device； continuously welding and joining the billets portions by a flash butt welder to form a continuous billet； grinding and removing burrs at the welded portion of the continuous billet by a grinding machine； and continuously rolling the billet by a rolling mill group, after heating the continuous billet to a higher temperature by an induction heater. A hot saw cutting type continuous rolling apparatus is provided for performing the above-described method.ClaimsWhat is claimed is:1. A hot saw cutting type continuous rolling method comprising the steps of: casting two strand billets continously； cutting the billets to predetermined length by hot saws； directly feeding billet portions obtained by cutting to a billet rolling line through means of a line connecting device； continously welding and joining the billets portions by a flash butt welder to form a continuous billet； grinding and removing burrs at the welded billet portion by a grinding machine； heating the continuous billet to a higher temperature by an induction heater； and continuously rolling the billet by a rolling mill group.2. A hot saw cutting type continuous rolling apparatus comprising: a continuous casting machine for casting two strand billets； traveling-type hot saws disposed on their respective casting lines； a line connecting device including means for alternately performing transverse feeding of billet portions obtained by cutting, disposed between the casting lines and a rolling line； a 附录 3 traveling-type flash butt welder for continuously welding and joining the billet portions to form a continuous billet, disposed at a downstream side of the line connecting device； a traveling-type grinding machine for removing burrs at the welded portion of the continuous billet, disposed at a downstream side of the traveling-type flash butt welder； an induction heater for heating the continuous billet to a higher temperature, disposed at a downstream side of the traveling-type grinding machine； and a rolling mill group for rolling the continuous billet which was heated to said higher temperature.3. The apparatus of claim 2, wherein the line connecting device comprises:a first chain conveyor disposed at one side of the rolling line, transversely feeding the billet on one casting line onto the rolling line； and a second chain conveyor disposed at another side of the rolling line, transversely feeding the billet on another casting line onto the rolling line.4. A hot saw cutting type continuous rolling apparatus comprising:a continuous casting machine for casting two strand billets； traveling-type hot saws disposed on their respective casting lines； a line connecting device including means which rotates by a predetermined angle for alternately performing transverse feeding of billet portions obtained by cutting, disposed between the casting lines and a rolling line； a traveling-type flash butt welder for continuously welding and joining the billet portions to form a continuous billet, disposed at a downstream side of the line connecting device； a traveling-type grinding machine for removing burrs at the welded portion of the continuous billet, disposed at a downstream side of the traveling-type flash butt welder； an induction heater for heating the continuous billet to a higher temperature, disposed at a downstream side of the traveling-type grinding machine； anda rolling mill group for rolling the continuous billet which was heated to said higher temperature.5. The apparatus of claim 4, wherein the line connecting device comprises:a turntable which reciprocately rotates by a predetermined angle； and means for transversely pushing the billet portion on the turntable onto a centerline of rotation of the turntable.DescriptionBACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a continuous rolling method of a billet directly fed from a continuous casting machine, and, more particularly, to a continuous rolling method and apparatus in which after two billet strands have been directly fed and cut by a hot saw, the billet portions obtained by cutting are welded together by flash butt welding, followed by burr grinding, after which the resulting billet is heated to a higher temperature by induction heating to roll the billet.2. Description of the Related ArtThe billet continuous rolling method is known as an energy-saving rolling method for efficiently producing a wire rod, steel bar, or shaped steel. For example, in the billet continuous rolling method disclosed in Japanese Unexamined Patent Publication No. 52-43754, a billet, directly fed from a continuous casting machine, is cut into a predetermined length by a hot saw, followed by temporary cooling of the billet portions obtained by cutting to reheat the cooled billet portions in a heating furnace. Then, the reheated billet portions are welded together by a flash butt welder, after which the burr on welded portion is peeled off by a forming tool disposed on a scarfer. Thereafter, the continuous billet is heated to the required temperature for rolling by an induction heater to roll the heated continuous billet by a group of rolling mill.However, in such a conventional continuous rolling method, the billet must be heated by about 1000 C., from room temperature of 20 C. to a final rolling required temperature of 1020 C, thereby considerably increasing heating costs. In addition, a difference between the continuous casting capacity and the rolling capacity prevents direct connection of a billet casting line and a billet rolling 附录 3 line,which inevitably results in huge facilities and makes it necessary to use a large space. Further, a forming tool is used for removing burrs from the billet flash butt welded portion, so that the forming tool has a short tool life and continuous operation cannot be performed, when a step is formed at the billet welded portion, since it is difficult to perform burr removal in such a case.SUMMARY OF THE INVENTIONThe present invention aims to solve the above-described problem and to provide continous rolling method and apparatus thereof to make it possible to further save energy and space, and achieve higher efficiency.A hot saw cutting type continuous rolling method of the present invention comprises the steps of casting two strand billets continously； cutting the billets to predetermined length by a hot saw； directly feeding billet portions obtained by cutting to a billet rolling line through means of a line connecting device； continously welding and joining the billets portions by a flash butt welder； grinding and removing burrs at the welded billet portion by a grinding machine； heating the continuous billet to a higher temperature by an induction heater； and continuously rolling the billet by a rolling mill group.Firstly, a hot saw cutting type continuous rolling apparatus comprises: a continuous casting machine for casting two strand billets； traveling-type hot saws disposed on their respective casting lines； a line connecting device including means for alternately performing transverse feeding of the billet portions obtained by cutting, disposed between the casting lines and a rolling line； a traveling-type flash butt welder for continously welding and joining the billet portions to form a continuous billet, disposed at a downstream side of the line connecting device； a traveling-type grinding machine for removing burrs at the welded portion of the continous billet, disposed at a downstream side of the traveling-type flash butt welder； an induction heater for heating the continous billet to higher temperature, disposed at a downstream side of the traveling-type grinding machine； and a rolling mill group for rolling the continous billet which was heated to said higher temperature.Secondly, a hot saw cutting type continuous rolling apparatus comprises: a continuous casting machine for casting two strand billets； traveling-type hot saws disposed on their respective casting lines； a line connecting device including means which rotates by a predetermined angle for alternately performing transverse feeding of billet portions by cutting, disposed between the casting lines and a rolling line； a traveling-type flash butt welder for continously welding and joining the billet portions to form a continuous billet, disposed at a downstream side of the line connecting device； a traveling-type grinding machine for removing burrs at the welded portion of the continous billet, disposed at a downstream side of the traveling-type flash butt welder； an induction heater for heating the continous billet to a higher temperature, disposed at a downstream side of the traveling-type grinding machine； and a rolling mill group for rolling the continous billet which was heated to said higher temperature.According to the present invention, a billet casting line and a rolling line are intermittently connected together by a line connecting device, thereby eliminating the need for a heating furnace, as has been conventionally the case, and allowing effective use of the heat of the billets. Therefore, heating costs are greatly reduced, since the induction heater needs to heat the billets by only about 100 C. from about 920 C. at the output side of the continuous casting machine to about 1020 C. rolling temperature.Two billet strands are subjected to continuous casting, since when only one strand is subjected to continuous casting, it becomes difficult to balance the continuous casting capacity and the continuous rolling capacity. The continuous casting capacity and the continuous rolling capacity are balanced in an efficient manner by c