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21. 发明授权

US3719476A Precipitation-hardenable stainless steel 失效
标题翻译：降低不可再生的不锈钢
公开(公告)号：US3719476A
公开(公告)日：1973-03-06
申请号：US3719476D
申请日：1969-08-29
申请人： ARMCO STEEL CORP
发明人： TANCZYN H
IPC分类号： C22C38/30 , C22C39/54
CPC分类号： C22C38/30
摘要： Precipitation-hardenable stainless steel combining strength and corrosion-resistance and method of hardening the same. The steel contains the four essential ingredients chromium, cobalt, molybdenum and copper, with remainder iron, the chromium amounting to about 11 to 18 percent, the cobalt about 5 to 14 percent, the molybdenum about 1 to 9 percent, and the copper about 1 to 5 percent. Neither the carbon nor the nitrogen content should exceed about 0.15 percent. Where desired, tungsten and/or vanadium may be partially substituted for molybdenum, this in amounts up to about 6 percent. As annealed, the steel is martensitic. Hardening from the annealed condition is had by heating at descending or cascading precipitation temperatures, i.e., 1,000* to 1,300* F. and then 850* to 1,000* F. In precipitation-hardened condition it is suited to a wide variety of applications in the food-handling, petro-chemical and aircraft industries.
摘要翻译：沉淀硬化不锈钢结合强度和耐腐蚀性及其硬化方法。钢含有四种必需成分铬，钴，钼和铜，余量为铁，铬含量约为11％至18％，钴约为5％至14％，钼约为1％至9％，铜含量约为1％至5％。碳和氮含量都不应超过0.15％。如果需要，钨和/或钒可以部分地替代钼，其量高达约6％。退火后，钢是马氏体的。通过在下降或级联沉淀温度下加热，即1000至1300°F，然后在850°至1000°F下进行淬火。在沉淀硬化条件下，适用于多种应用食品加工，石化和飞机等行业。

22. 发明授权

US3712808A Deep hardening steel 失效
标题翻译：深度硬化钢
公开(公告)号：US3712808A
公开(公告)日：1973-01-23
申请号：US3712808D
申请日：1971-11-26
申请人： CARPENTER TECHNOLOGY CORP
发明人： PHILIP T
IPC分类号： C22C38/42 , C22C39/54
CPC分类号： C22C38/42
摘要： A DEEP HARDENABLE, LOW ALOY STEEL HAVING GOOD TEMPER RESISTANCE, HOT HARDNESS AND DIMENSIONAL STABILITY CONSISTING ESSENTIALLY OF ABOUT 0.7-1.2% CARBON, UP TO 0.6% MANGANESE, 0.5-2.5% SILICON, 0.5-1.5% CHROMIUM, 0.25-1.5% MOLYBDENUM, 0.15-0.5& NICKEL, 0.65-4% COPPER AND THE BALANCE ESSENTIALLY IRON EXCEPT FOR INCIDENTAL IMPURITIES, AND IN WHICH 8.5X%SI+3X%CU-5.2$10.

23. 发明授权

US3671224A Methods of producing leaded steel 失效
标题翻译：生产铅钢的方法
公开(公告)号：US3671224A
公开(公告)日：1972-06-20
申请号：US3671224D
申请日：1970-08-17
申请人： REPUBLIC STEEL CORP
发明人： NORTH DONALD F JR , THOMAS JERRY D , WORTH GERALD W
IPC分类号： B22D11/108 , B22D11/11 , C22C38/60 , C22C39/54
CPC分类号： C22C38/60 , B22D11/108 , B22D11/11
摘要： LEAD ADDITIONS TO STEEL ARE MADE AND AN IMPROVED LEADED STEEL PRODUCT IS OBTAINED BY EFFECTIVELY UTILIZING THE SIGNIFICANT SOLUBILITY OF LEAD IN STEEL AT TEMPERATURES ABOVE THE LIQUIDUS TEMPERATURE OF THE STEEL. THIS IS ACCOMPLISHED BY CONTROL OF PROCESS CONDITIONS, INCLUDING ADDING THE LEAD TO THE STEEL IN A VESSEL SEPARATE FROM THE CASTING MOLD, ALLOWING A MINIMUM TIME BETWEEN THE ADDITION OF THE LEAD AND THE POURING AND CASTING OF THE LEADED STEEL, THE USE OF SPECIFIC AMOUNTS OF LEAD BASED UPON A TARGET PERCENTAGE

OF LEAD TO BE OBTAINED IN THE CAST STEEL, WHICH TARGET PERCENTAGE DOES NOT EXCEED THE SOLUBILITY LEVEL OF LEAD IN THE STEEL, AND THE ADDITION OF THE LEAD WHEN THE TEMPERATURE OF THE STEEL IS ABOVE THE LIQUIDUS TEMPERATURE BY AT LEAST A MINIMUM AMOUNT. THE LEAD CONTENT IN STEEL CAST CONTINUOUSLY OR INTO INGOTS IN ACCORDANCE WITH THIS PROCES IS UNIFORMLY AND FINELY DISPERSED AND THE STEEL IS CHARACTERIZED BY AN ABSENCE OF MACROSEGREGATION OF LEAD.

24. 发明授权

US3666570A High-strength low-alloy steels having improved formability 失效
标题翻译：具有改进的强度的高强度低合金钢
公开(公告)号：US3666570A
公开(公告)日：1972-05-30
申请号：US3666570D
申请日：1969-07-16
申请人： JONES & LAUGHLIN STEEL CORP
发明人： KORCHYNSKY MICHAEL , GROZIER JOHN DAVID , MIHELICH JOHN L
IPC分类号： C22C38/00 , C22C38/12 , C22C39/54
CPC分类号： C22C38/12
摘要： FULLY KILLED HIGH-STRENGTH LOW-ALLOY STEELS CONSISTING ESSENTIALLY OF .06% TO .20% CARBON, .50% TO 1.4% MANGANESE, .01% TO .08% COLUMBIUM OR .04% TO .12% VANADIUM, .05% MAXIMUM SILICON, .04% MAXIMUM SULFUR, .04% MAXIMUM PHOSPHORUS AND AN INCLUSION SHAPE-CONTROL AGENT COMPRISING EITHER .06% TO .20% ZIRCONIUM, .01% TO .10% OF A REARE EARTH OR.01% TO .10% MISCHMETAL ARE CHARACTERIZED IN A HOT-ROLLED FINISHED CONDITION BY YIELD STRENGTHS IN EXCESS OF 45,000 P.S.I., ULTIMATE TENSILE STRENGTHS IN EXCESS OF 60,000 P.S.I., DUCTILITIES AS MEASURED BY PERCENT ELONGATION (2 INCHES) IN EXCESS OF 20%, GOOD TOUGHNESS, SUPERIOR FORMABILITY AND REDUCED DIRECTIONALITY . THE STEELS ARE HOT-ROLLED FINISHED IN THE TEMPERATURE RANGE 1550*F. TO 1650*F., COOLED AT A RATEA WITHIN THE RANGE 20*F. TO 135*F. PER SECOND AND COLLECTED BY COILING OR PILING WITHIN A TEMPERATURE RANGE OF 1025*F. TO 1175*F.

25. 发明授权

US3634074A Free cutting steels 失效
标题翻译：免费切割钢
公开(公告)号：US3634074A
公开(公告)日：1972-01-11
申请号：US3634074D
申请日：1968-12-05
申请人： DAIDO STEEL CO LTD
发明人： ITO TETSURO , KATO GOSHI , KIMURA ATSUYOSHI
IPC分类号： C22C38/60 , C22C39/54
CPC分类号： C22C38/60
摘要： This invention relates to free cutting steels containing in combination calcium and at least one free cutting element selected from the group consisting of lead, sulfur and tellurium. Such free cutting steels are characterized by their cutting property.
摘要翻译：本发明涉及包含钙和至少一种选自铅，硫和碲的至少一种自由切割元素的自由切割钢。这种自由切削钢的特点是切削性能。

26. 发明授权

US3574606A Method for adding tellurium dioxide to molten steel 失效
标题翻译：将二氧化钛加入到钢中的方法
公开(公告)号：US3574606A
公开(公告)日：1971-04-13
申请号：US3574606D
申请日：1968-07-03
申请人： INLAND STEEL CO
发明人： EDGAR WILLIAM , PRAY RALPH E
IPC分类号： C21C7/00 , C22C38/60 , C22C33/02 , C22C39/54
CPC分类号： C21C7/0006 , C22C38/60
摘要： ADDING TELLLURIUM TO MOLTEN STEEL USING BRIQUET CONTAINING COMPACTED TELLURIUM DIOXIDE POWDER AND STEEL MACHINE SHOP TURNINGS.

27. 发明授权

US3495972A Metallic conglomerate adaptable for dental filling 失效
标题翻译：适用于牙科填充的金属结合剂
公开(公告)号：US3495972A
公开(公告)日：1970-02-17
申请号：US3495972D
申请日：1966-04-06
申请人： LOMA LINDA UNIV
发明人： BAUM LLOYD
IPC分类号： A61K6/05 , A61K5/02 , C22C39/54
CPC分类号： A61K6/05

28. 发明授权

US3476555A Corrosion-resistant metallic articles and composition therefor 失效
标题翻译：耐腐蚀金属制品及其组合物
公开(公告)号：US3476555A
公开(公告)日：1969-11-04
申请号：US3476555D
申请日：1966-03-08
申请人： SCHOELLER BLECKMANN STAHLWERKE
发明人： KOHL HEINZ , SOURESNY HERBERT
IPC分类号： C22C38/00 , C22C38/58 , E21B17/16 , C22C39/54 , C22C39/46 , C22C39/50
CPC分类号： E21B17/16 , C22C38/001 , C22C38/58

29. 发明授权

US3472651A Engine components of cast iron having ni,cr,and ti as alloying elements 失效
标题翻译：具有NI，CR和TI作为合金元素的发动机组件
公开(公告)号：US3472651A
公开(公告)日：1969-10-14
申请号：US3472651D
申请日：1966-09-22
申请人： JOHNSON PRODUCTS INC
发明人： KUENY KENNETH E
IPC分类号： C22C37/06 , C22C39/54 , C22C39/00 , C22C39/20
CPC分类号： C22C37/06

30. 发明授权

US3960615A Weldable bar, especially for use in reinforcing concrete 失效
标题翻译：可焊条，特别适用于钢筋混凝土
公开(公告)号：US3960615A
公开(公告)日：1976-06-01
申请号：US459933
申请日：1974-04-11
申请人： Theo Breedijk
发明人： Theo Breedijk
IPC分类号： C22C38/00 , C22C38/12 , C22C39/26 , C22C39/54
CPC分类号： C22C38/12 , Y10T428/12
摘要： A new Si-semi-killed BOF steel, especially suitable for use in the form of bar for concrete reinforcements in which the bar is stitch-welded, contains not less than 0.18% and not more than 0.29% C, not less than 1.20% and not more than 1.50% Mn, less than 0.1% Si, less than 0.01% Al, less than 0.005% N, less than 0.05% P, less than 0.05% S, in total less than 0.15% Cr, Ni, Mo, Cu and Sn, and at least some but less than 0.04% Nb, and possibly also at least some but less than 0.06% V. Cold twisting may further improve the properties of the steel.
摘要翻译：一种新型Si-semi-killed BOF钢，特别适用于钢筋混凝土加强筋的形式，其中钢筋被缝合，含有不低于0.18％且不大于0.29％C，不小于1.20％并且不超过1.50％的Mn，小于0.1％的Si，小于0.01％的Al，小于0.005％的N，小于0.05％的P，小于0.05％的S，总共小于0.15％的Cr，Ni，Mo， Cu和Sn，以及至少一些但小于0.04％的Nb，并且还可能至少有一些但小于0.06％V.冷加捻可进一步改善钢的性能。

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