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公开(公告)号：US3884678A
公开(公告)日：1975-05-20
申请号：US43946574
申请日：1974-02-04
CPC分类号： C21C5/36 , C21C7/076 , Y02P10/242
摘要： A solid solution of 28 to 32% MnO, 30 to 35% FeO, 25 to 30% CaO and 8 to 12% MgO is advantageously used as a flux, together with external lime, in the refining of steel. As an adjunct, a solid solution of 80% CaO, 15% MnO and 5% FeO is used as a flux without any or with only a minimum of external lime.
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公开(公告)号：US3787250A
公开(公告)日：1974-01-22
申请号：US3787250D
申请日：1972-10-05
发明人： COVER R , KORCHYNSKY M , BELL J
CPC分类号： C22C38/20 , C21D8/0226
摘要： Low-alloy steels having five to eight times the atmospheric corrosion resistance of carbon steels, 80,000 psi minimum yield strengths and an overall desirable balance of mechanical properties produced directly off the hot-mill have the following chemistry: carbon, .04 percent to .10 percent; manganese, .40 percent to 1.80 percent; sulfur, .03 percent maximum; aluminum, .015 percent minimum; chromium, .90 percent to 1.20 percent copper, .30 percent to .50 percent; silicon, .50 percent to 1.20 percent; phophorus, .10 percent to .15 percent; columbium, .015 percent to .040 percent; and zirconium, .04 percent to .12 percent or a total content of rare earth elements, such as cerium and lanthanum, such that the weight ratio of total rare earths to sulfur is at least 2.8 to 1. In processing the steel to strip or plate, it is hot-rolled so as to have a finishing temperature between its A3 temperature and 1,700* F, cooled at a rate between 20* F/sec. and 45* F/sec. and coiled or piled at a temperature of 1,100* F + OR - 100* F.
摘要翻译： 具有五至八倍的碳钢耐大气腐蚀性的低合金钢，80,000psi的最小屈服强度和直接从热轧机产生的机械性能的总体期望平衡具有以下化学性质：碳，0.04％至10.10 百分; 锰，0.40％至1.80％; 硫，最大0.03％; 铝，最低0.015％ 铬，90％至1.20％铜，0.30％至0.50％。 硅，50％至1.20％; phophorus，10％至0.15％; 铌，0.015％至0.040％; 和锆，0.04％至0.12％或稀土元素（例如铈和镧）的总含量，使得总稀土与硫的重量比至少为2.8:1。在钢中加工剥离或 将其热轧成具有在A3温度和1700°F之间的终轧温度，以20°F /秒的速率冷却。 和45°F /秒。 并在1100°F +/- 100°F的温度下卷起或堆积。
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公开(公告)号：US3779798A
公开(公告)日：1973-12-18
申请号：US3779798D
申请日：1972-07-17
CPC分类号： C23C10/28 , C21D9/52 , Y10T428/12722
摘要： Tinplate of improved corrosion resistance comprises a steel base with a microstructure between the limits of martensitic-ferritic and fully martensitic provided with a coating of tin and an interfacial tin-iron alloy layer.
摘要翻译： 具有改善的耐腐蚀性的马口铁包括具有在马氏体 - 铁素体和完全马氏体的极限之间的显微组织的钢基体，其具有锡涂层和界面锡 - 铁合金层。
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公开(公告)号：US3754900A
公开(公告)日：1973-08-28
申请号：US3754900D
申请日：1971-04-16
CPC分类号： C21C7/00
摘要： A low-nitrogen low-carbon high-chromium steel is made by forming a melt of chrome ore, iron ore and lime, reducing the melt with silicon or ferrosilicon out of contact with the ambient air, and teeming the underlying metallic phase also out of contact with the ambient air into a mold.
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5.发明授权
公开(公告)号：US3711766A
公开(公告)日：1973-01-16
申请号：US3711766D
申请日：1970-03-02
发明人： DAHM J
CPC分类号： G01L5/045
摘要： A series of sets of magnetic flux flow paths are sequentially established and passed through a ferromagnetic steel strip being rolled under tension. Each set of paths in the series acts to develop a resultant magnetic flux which is a measure of the average tension in the rolling direction in that portion of the strip through which a particular set of paths passes. The series of sets of paths are established in abutting relation across the width of the strip so that all stresses in the strip across its width are taken into account. A profile across the width of the strip of the magnitude of the applied tension forces in the strip in the rolling direction is thereby obtained, and the profile is used to determine strip flatness.
摘要翻译： 一系列磁通流路顺序地建立并通过在张力下轧制的铁磁钢带。 该系列中的每组路径用于产生合成磁通量，该磁通量是特定路径通过的条带部分中的轧制方向上的平均张力的量度。 一系列路径以条带宽度的邻接关系建立，从而考虑带材横跨其宽度的所有应力。 从而获得沿着轧制方向在带材中所施加的拉力的大小的宽度上的轮廓，并且使用轮廓来确定条带平面度。
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公开(公告)号：US3700485A
公开(公告)日：1972-10-24
申请号：US3700485D
申请日：1970-04-10
发明人： RUBIN ROBERT G
CPC分类号： C23C14/025 , C23C14/021 , C23C14/541 , Y10S428/938 , Y10T428/12757 , Y10T428/12792
摘要： ADHERENT VACUUM VAPOR DEPOSITED ZINC COATINGS ARE PROVIDED FERROUS SUBSTRATES BY INITIALLY VACUUM VAPOR COATING THE SUBSTRATES WITH A FIRST METAL COMPRISING EITHER ALUMINUM OR MAGNESIUM AND THEREAFTER VACUUM VAPOR COATING THE SUBSTRATES WITH ZINC. THE TEMPERATURE OF A SUBSTRATE DURING THE COATING PROCEDURE AND THE ELAPSED TIME BETWEEN APPLICATION OF THE SUCCESSIVE COATINGS ARE CONTROLLED WITHIN CRITICAL LIMITS.
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公开(公告)号：US3674248A
公开(公告)日：1972-07-04
申请号：US3674248D
申请日：1970-10-09
CPC分类号： C21B7/16
摘要： Tuyeres and like articles employed to deliver fluids in extremely hot environments include an arrangement for their cooling comprising a conduit in the form of a coil having a plurality of turns for passing a cooling fluid through the article at high velocities. The conduit consists of an outer tubular member closed at one end to fluid flow and an inner tubular member located within the outer tubular member so as to form an annular passageway between the members. The tubular members are in fluid communication adjacent the closed end of the outer member. Cooling fluid introduced into the conduit first passes through the conduit along the annular passageway, enters the inner tubular member adjacent the closed end of the outer member, and passes through the inner tubular member to exit from the conduit.
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公开(公告)号：US3673854A
公开(公告)日：1972-07-04
申请号：US3673854D
申请日：1970-07-22
发明人： MANKA DAN PAUL
CPC分类号： G01N7/14 , G01N31/00 , Y10T436/204998 , Y10T436/205831 , Y10T436/22
摘要： The time required for continuous gas analyzers of blast furnace top gas and the like to reach steady-state conditions after an interruption of furnace operation is greatly reduced by a process including drying the stream of gas analyzed and sealing a gas containing the analyzed constituents within the gas analysis apparatus during the period of interruption.
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公开(公告)号：US3671334A
公开(公告)日：1972-06-20
申请号：US3671334D
申请日：1970-08-07
发明人： BUCHER JOHN H , HELD JOHN F
CPC分类号： C22C38/12 , C22C38/001
摘要： STEELS HAVING THE FOLLOWING COMPOSITION: .08 TO .18% CARBON; .3 TO 1.0% MANAGANESE; .01 TO .05% COLUMBIUM; .008 TO .014% NITROGEN; .10% MAXIMUM SILICON; LESS THAN A TOTAL OF APPROXIMATELY .02% OF THE NITRIDE-FORMING ELEMENTS ALUMINUM, ZIRCONIUM, VANADIUM AND TITANIUM; AND THE BALANCE ESSENTIALLY IRON, AFTER APPROPRIATE PROCESSING, HAVE YIELD STRENGTHS OF 50,000 TO 70,000 P.S.I. IN HOT-ROLLED AND COLD-ROLLED CONDITIONS AND YIELD STRENGTHS OF 70,000 TO 90,000 P.S.I. AFTER STRAINING AND AGING.
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公开(公告)号：US3661537A
公开(公告)日：1972-05-09
申请号：US3661537D
申请日：1969-07-16
CPC分类号： C22C38/12
摘要： A steel composition having particular applicability to the manufacture of high-strength, low-alloy line pipe comprises 0.10 to 0.20 percent carbon, 0.85 to 1.25 percent manganese, 0.10 percent maximum phosphorus, 0.05 percent maximum sulfur, silicon in an amount not adversely affecting steel properties, 0.02 to 0.05 percent columbium, 0.10 percent maximum vanadium, an inclusion shape-control agent selected from the group consisting of zirconium, a rare earth or mischmetal, the balance iron.
摘要翻译： 具有特别适用于制造高强度，低合金管线的钢组合物包括0.10至0.20％的碳，0.85至1.25％的锰，0.10％的最大磷，最大硫的0.05％，不影响钢的量的硅 特性，0.02〜0.05％的铌，0.10％的最大钒，选自锆，稀土或者稀土金属，余量的铁的夹杂物形状控制剂。
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