公开(公告)号：US5462613A

公开(公告)日：1995-10-31

申请号：US254969

申请日：1994-06-07

申请人： Robert J. Glodowski ,  Allyen E. Wilson, III

发明人： Robert J. Glodowski ,  Allyen E. Wilson, III

IPC分类号： C21C5/28 ,  C21D9/573

CPC分类号： C21C5/285 ,  C21D9/5732

摘要： A method and apparatus are provided for producing rods having a desired tensile strength from a rod manufacturing process set to an optimal operating condition. Initially, the rod manufacturing process is set in an optimal condition to produce rods at a maximum rate, while optimizing the mechanical properties therein. Raw materials are melted and a "heat of steel" representing one lot is poured into a ladle which is sampled to determine its chemical composition. The percentage content of each element is utilized within an empirical model modeling the rod manufacturing process to predict the tensile strength of rods. The empirical model is again utilized to determine the amount by which a control element must be varied to adjust the predicted tensile strength to the desired tensile strength. The control element represents an element, such as, carbon which significantly impacts the tensile strength of the rod. The predicted level of the control element necessary to achieve the target tensile strength is referred to as the "floating aim level" thereof. If the floating aim level exceeds a maximum accepted level for the control element the empirical model is again used to determine the necessary level of a second control element. Next, the heat of steel is trimmed to provide a lot having the target tensile strength.

摘要翻译： 提供了一种方法和装置，用于从棒制造过程设置到最佳操作条件来生产具有期望拉伸强度的棒。 最初，杆制造过程被设定在最佳条件下，以最大速率生产杆，同时优化其中的机械性能。 将原材料熔化，将代表一批的“钢热”倒入钢包中，该钢包被取样以确定其化学成分。 在一个经验模型中利用每个元素的百分比来建模棒制造过程来预测棒的拉伸强度。 经验模型再次用于确定控制元件必须变化的量，以将预测的拉伸强度调整到所需拉伸强度。 控制元件表示一种元素，例如显着影响杆的拉伸强度的碳。 实现目标拉伸强度所需的控制元件的预测值被称为“浮动目标水平”。 如果浮动目标水平超过控制元件的最大可接受水平，则经验模型再次用于确定第二控制元件的必要水平。 接下来，对钢的热量进行修整以提供具有目标拉伸强度的很多。

公开(公告)号：US4589934A

公开(公告)日：1986-05-20

申请号：US295685

申请日：1981-08-24

申请人： Robert J. Glodowski ,  Vernon C. Van Slyke

发明人： Robert J. Glodowski ,  Vernon C. Van Slyke

IPC分类号： C22C38/00 ,  B02C13/28 ,  C21D1/18 ,  C21D9/00

CPC分类号： C21D9/0075 ,  C21D1/18 ,  Y10S148/902

摘要： A rod having end portions of a hardness characteristic of a pearlitic microstructure, the remainder comprising an annular outer region and a core region, at least the outer region having a surface hardness greater than Rockwell C 50. A method of producing heat treated rods involves passing a heated rod through at least one quench zone, initiating a liquid quench after the leading end of the rod has emerged from the quench zone and turning off the liquid quench before the trailing end of the rod enters the quench zone.

摘要翻译： 具有珠光体组织的硬度特征的端部的棒，其余部分包括环形外部区域和芯部区域，至少外部区域的表面硬度大于洛氏C 50。一种生产热处理棒的方法包括通过 通过至少一个淬火区域的加热杆，在杆的前端从淬火区域出来之后启动液体淬火，并且在杆的后端进入淬火区域之前关闭液体淬火。