-
公开(公告)号：US5200005A
公开(公告)日：1993-04-06
申请号：US652872
申请日：1991-02-08
申请人： Abbas Najah-Zadeh , John J. Jonas , Stephen Yue
发明人： Abbas Najah-Zadeh , John J. Jonas , Stephen Yue
CPC分类号： C21D8/0231 , C21D8/00 , B21B2201/04 , C21D2211/005 , C21D8/0226
摘要： The strength of interstitial free steels is increased by up to 100% and the ductile to brittle transition temperature is decreased by up to 100.degree. C. by warm finish rolling in the single phase ferrite region below A.sub.rl to effect ferrite dynamic recrystallization of the steel microstructure to a ferrite structure of grain size having a grain size of up to 5 .mu.m, and especially an ultra fine grain size of 1 to 2 .mu.m; the method may be employed in various hot working methods including strip and rod mills, planetary hot rolling and extrusion.
摘要翻译： 无间隙钢的强度提高高达100％，延性至脆性转变温度通过在Arl以下的单相铁素体区域中的热精轧降低高达100℃，以实现钢微观结构的铁素体动态再结晶 涉及粒径高达5μm的粒径的铁素体结构，特别是1〜2μm的超细晶粒度; 该方法可以用于各种热加工方法，包括带钢和棒磨机，行星式热轧和挤压。
-
公开(公告)号：US4840051A
公开(公告)日：1989-06-20
申请号：US55945
申请日：1987-06-01
申请人： Francisco Boratto , Stephen Yue , John J. Jonas
发明人： Francisco Boratto , Stephen Yue , John J. Jonas
CPC分类号： B21B1/32 , B21B1/26 , B21B2201/04 , B21B2265/22 , Y10T70/375
摘要： A series of thermomechanical workings such as temperature-controlled torsional strains are applied to a specimen of steel at strain and temperature levels and interpass times selected to simulate rolling mill conditions. The measured stress values are compared with the temperatures of the steel during the working periods during which the respective values were obtained. Thermomechanical working schedules are repeated at selected varying starting and terminating temperatures thereby to obtain a series of possible rolling schedules. These simulations are selected so that a varying number of reduction passes in the sequence occur at steel temperatures below temperature A.sub.r3. The value of a selected parameter of the worked steel, e.g. yield strength, is measured at ambient temperature. From the rolling mill analogue of possible rolling schedule simulations, an optimized rolling schedule is selected which will predictably impart to the steel a value of the selected parameter falling within a predetermined range. Linear regression analysis is applied to empirically obtained rolling mill data to derive one or more linear relationships between a selected property (e.g. yield strength) of the steel and rolling mill parameters thereby to permit selection of an optimum rolling schedule suitable to obtain a preselected value of the selected property of the steel.
摘要翻译： 将温度控制的扭转应变的一系列热机械工作应用于钢的样品的应变和温度水平以及所选择的插层时间以模拟轧机条件。 将测量的应力值与获得各个值的工作期间的钢的温度进行比较。 在选择的变化的起始和终止温度下重复热机械工作时间表，从而获得一系列可能的轧制时间表。 选择这些模拟，使得在低于温度Ar 3的钢温度下，顺序发生不同数量的还原。 加工钢的选定参数的值，例如 屈服强度，在环境温度下测量。 从可能的轧制计划模拟的轧机模拟中，选择优化的轧制计划，其可预测地赋予钢所选参数的值落在预定范围内。 线性回归分析被应用于经验获得的轧机数据以导出钢的选定性质（例如屈服强度）与轧机参数之间的一个或多个线性关系，从而允许选择适于获得预定值 钢的选定属性。
-
公开(公告)号：US5226978A
公开(公告)日：1993-07-13
申请号：US751071
申请日：1991-08-28
申请人： Patrick J. Hunt , John J. Jonas , Stephen Yue , George E. Ruddle
发明人： Patrick J. Hunt , John J. Jonas , Stephen Yue , George E. Ruddle
CPC分类号： C21D8/10 , C21D6/02 , Y10S148/909
摘要： Seamless steel tubes suitable for use as grades of casing and line pipe having yield strengths in excess of 70,000 psi, without being heat treated, are made of an alloy comprising, by weight, about 0.10% to 0.18% carbon, about 1.0% to 2.0% manganese, about 0.10% to 0.16% vanadium, about 0.008% to 0.012% titanium and about 150 parts per million to 220 parts per million nitrogen, the balance comprising iron and incidental impurities. Strains are applied to the shell in a stretch reducing mill below the T.sub.nr of the steel and above the A.sub.r3 to provoke dynamic recrystallization. The nitrogen and vanadium are preferably introduced to the steel during alloying in the form of a VN alloying agent. The vanadium, titanium and nitrogen are predominantly present as vanadium nitride and titanium nitride. The steel may also comprise 0.03% to 0.05% aluminum by weight.
摘要翻译： 适用于不经热处理的屈服强度超过70,000psi的套管和管线管等级的无缝钢管由合金制成，该合金包含重量约0.10％至0.18％的碳，约1.0％至2.0％ 约0.10％至0.16％的钒，约0.008％至0.012％的钛和约150份的百万分之一至220份/百万的氮，余量包括铁和杂质。 将菌株施加到钢的Tnr下方的拉伸还原研磨机中并在Ar 3上方引起动态再结晶。 氮和钒优选在VN合金化剂形式的合金化过程中引入钢中。 钒，钛和氮主要作为氮化钒和氮化钛存在。 钢还可以包含0.03重量％至0.05重量％的铝。
-
公开(公告)号：US5186769A
公开(公告)日：1993-02-16
申请号：US751078
申请日：1991-07-28
摘要： A method for producing seamless steel tubes suitable for use as grades of casing and line pipe having yield strengths in excess of 70,000 psi, without being heat treated. Such steels are made of an alloy comprising, by weight, about 0.10% to 0.18% carbon, about 0.10% to 2.0% manganese, about 0.10% to 0.16% vanadium, about 0.008% to 0.012% titanium and about 150 parts per million to 220 parts per million nitrogen, the balance comprising iron and incidental impurities. The subject method comprises the steps of alloying a steel of the aforesaid chemical composition, forming the steel into a billet of steel, reheating the billet in a reheating furnace, passing the billet through a piercing mill to form a steel shell, elongating the steel shell within a mandrel mill, and reducing the diameter of the elongated shell in a stretch reducing mill. Strains are applied to the shell in the stretch reducing mill below the T.sub.nr of the steel and above the A.sub.r3 to provoke dynamic recrystallization. The subject method may also include the steps of cooling the steel shell after it exits the mandrel mill to a temperature below its A.sub.r1 temperature, prior to reheating, and/or accelerated cooling (optional, special cooling may not be necessary for thinner walls) after exiting the stretch reducing mill at a rate between 3.degree. C. to 5.degree. C. per second. The nitrogen and vanadium are preferably introduced to the steel during alloying in the form of a VN alloying agent.
摘要翻译： 适用于不经热处理的屈服强度超过70,000psi的套管和管线等级的无缝钢管的生产方法。 这种钢由合金组成，包括约0.10％至0.18％的碳，约0.10％至2.0％的锰，约0.10％至0.16％的钒，约0.008％至0.012％的钛和约150ppm的钛 220百万分之氮，余量由铁和附带杂质组成。 本发明的方法包括以下步骤：将上述化学组成的钢合金化，将钢形成钢坯，在再加热炉中重新加热坯料，使坯料通过穿孔机形成钢壳，使钢壳伸长 在芯棒式无缝管轧机中，并且在减速磨机中减小细长壳体的直径。 将菌株施加到钢的Tnr下方的拉伸还原轧机的壳体上，并且在Ar 3上方引起动态再结晶。 本发明的方法还可以包括以下步骤：在再次加热和/或加速冷却之后将钢壳冷却到低于其Ar1温度的温度下冷却（可选地，对于较薄壁而言不需要特殊的冷却） 以3℃至5℃/秒的速率离开拉伸还原研磨机。 氮和钒优选在VN合金化剂形式的合金化过程中引入钢中。
-
公开(公告)号：US4012533A
公开(公告)日：1977-03-15
申请号：US632858
申请日：1975-11-17
申请人： John J. Jonas
发明人： John J. Jonas
摘要： Multipurpose whipped dessert which may be consumed in the frozen state as an ice cream type product, or alternately in the thawed state as a whipped topping, and the method of manufacturing same.
摘要翻译： 可以作为冰淇淋型产品在冷冻状态下消费的多用途鞭打甜点，或作为鞭打顶部的解冻状态或其制造方法。
-
6.发明授权Method of, and an apparatus for, evaluating forming capabilities of solid plate 失效用于评估固体板的成形能力的方法和装置
公开(公告)号：US4790188A
公开(公告)日：1988-12-13
申请号：US71857
申请日：1987-07-10
申请人： Jean F. Bussiere , Cheng-Kuei Jen , Irina D. Makarow , Brigitte Bacroix , Philippe H. Lequeu , John J. Jonas
发明人： Jean F. Bussiere , Cheng-Kuei Jen , Irina D. Makarow , Brigitte Bacroix , Philippe H. Lequeu , John J. Jonas
CPC分类号： G01N29/07 , G01N2291/02827
摘要： A method of, and apparatus for, evaluating forming capabilities of metal plate by means of ultrasonic waves where the rolling direction and the density of the plate are known. The method comprises the steps of launching acoustic waves into the plate and detecting acoustic waves propagating in the plate to establish acoustic velocities in the plate along at least two different directions. Then the value of a certain plastic strain characteristic, like the average plastic strain ratio R or the planar strain ratio .DELTA.R, is determined from a previously established empirical relationship between the velocities and the value of the plastic strain ratio R(.alpha.).
摘要翻译： 一种通过超声波评价金属板的成形能力的方法和装置，其中已知轧制方向和板的密度。 该方法包括以下步骤：将声波发射到板中并检测在板中传播的声波，以沿着至少两个不同的方向建立板中的声速。 然后，根据先前确定的速度与塑性应变比R（α）的值之间的经验关系，确定某种塑性应变特性的值，如平均塑性应变比＆upbar＆R或平面应变比ΔTATA。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.016 秒)
