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1. 发明申请

WO1996012574A1 METHOD OF MANUFACTURING SEAMLESS STEEL PIPES AND MANUFACTURING EQUIPMENT THEREFOR 审中-公开
标题翻译：制造无缝钢管及其制造设备的方法
公开(公告)号：WO1996012574A1
公开(公告)日：1996-05-02
申请号：PCT/JP1995002155
申请日：1995-10-20
申请人： SUMITOMO METAL INDUSTRIES, LTD. , KONDO, Kunio , OKADA, Yasutaka , TANIMOTO, Seiji
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： B21B23/00
CPC分类号： B21B23/00 , B21B1/466 , C21D8/10
摘要： A method of manufacturing a seamless steel pipe the performance of which is superior to that of a conventional product of this kind, by simplified manufacturing steps and equipment, at a lower cost and with a high productivity, and manufacturing equipment for practicing this method. The manufacturing method comprises the following sequential steps 1-8, the steps and equipment for the production of billets to final products being connected by one continuous line: (1) step of manufacturing round billets by a continuous casting method; (2) step of cooling the billets to a temperature not higher than an Ar3 transformation point, (3) step of heating the billets to a temperature at which they can be bored, (4) step of manufacturing untreated pipes by bore-rolling the billets at a strain rate of not higher than 200/sec; (5) step of manufacturing steel pipes by draw-rolling and finish-rolling the untreated pipes at predetermined average strain rate, reduction ratio and finish temperature by rolling mill in which a continuous draw-rolling mill and finish-rolling mill are directly connected, (6) step of subjecting the steel pipes to a recrystallization treatment at a temperature not lower than an Ar3 transformation point, (7) step of hardening the steel pipes from a temperature not lower than an Ar3 transformation point; and (8) step of tempering the steel pipes.
摘要翻译：通过简化的制造步骤和设备，以较低的成本和高生产率制造无缝钢管的方法，其性能优于常规产品的方法，以及用于实施该方法的制造设备。该制造方法包括以下顺序步骤1-8，用于通过连续生产线连接生产最终产品的坯料的步骤和设备：（1）通过连续铸造方法制造圆钢坯的步骤; （2）将坯料冷却至不高于Ar 3相变点的温度的步骤，（3）将坯料加热到可以钻孔的温度的步骤，（4）通过镗削制造未处理的管道的步骤坯料的应变率不超过200 /秒; （5）通过直线连接连轧机和精轧机的轧机以预定的平均应变率，压下率和最终温度对未处理的管进行拉伸轧制和精轧来制造钢管的工序，（6）在不低于Ar3相变点的温度下对钢管进行再结晶处理的步骤，（7）从不低于Ar3相变点的温度硬化钢管的步骤; 和（8）回火钢管的步骤。

2. 发明申请

WO1997039843A1 SEAMLESS STEEL PIPE MANUFACTURING METHOD AND EQUIPMENT 审中-公开
标题翻译：无缝钢管制造方法和设备
公开(公告)号：WO1997039843A1
公开(公告)日：1997-10-30
申请号：PCT/JP1997001370
申请日：1997-04-18
申请人： SUMITOMO METAL INDUSTRIES, LTD. , KONDO, Kunio , OKADA, Yasutaka , TANIMOTO, Seiji
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： B21B19/04
CPC分类号： B21B23/00 , B21B17/14 , B21B19/04 , C21D8/10
摘要： A method of producing seamless steel pipes of excellent performance efficiently by an on-line system, and seamless steel pipe manufacturing equipment in which the apparatuses used from a casting step to a heat treatment step are provided on-line. In this method, the following steps (1-6) are carried out continuously in order. 1) Round billets are manufactured by a continuous casting machine (1). 2) The billets temporarily cooled to a temperature not more than Ar1 transformation point are heated again and soaked in a heating furnace (3). 3) The soaked billets are bore-rolled by a piercer (5) at a rate of strain of not more than 200/sec to obtain raw pipes. 4) The raw pipes are rolled by a rolling mill (M), in which a mandrel mill (7) and a sizer (8) are arranged closely to each other, at an average rate of strain of not less than 0.01/sec, a reduction ratio of not less than 40 % and a finishing temperature of 800 DEG -1050 DEG C, whereby seamless steel pipes are manufactured. 5) These seamless steel pipes are cooled by a cooling unit (9) at a cooling rate of not less than 80 DEG C/min to a temperature not higher than Ar3 transformation point. 6) The cooled seamless steel pipes are heated again at 850 DEG -1000 DEG C for 10 sec to 30 min, quenched and then tempered.
摘要翻译：通过在线系统有效地生产出优异性能的无缝钢管的方法，以及从铸造步骤到热处理步骤使用的装置在线设置的无缝钢管制造设备。在该方法中，依次进行以下的步骤（1-6）。 1）圆坯由连续铸造机（1）制造。 2）将暂时冷却到不高于Ar1相变点的温度的钢坯再次加热并浸泡在加热炉（3）中。 3）浸渍过的坯料以不大于200 /秒的应变速率由穿孔机（5）进行钻孔，得到原料管。 4）原料管通过轧制机（M）轧制，其中芯棒式无缝管轧机（7）和分级机（8）彼此紧密地排列，平均应变速率不小于0.01 /秒，减少率不低于40％，最终温度为800〜-1050℃，由此制造无缝钢管。 5）这些无缝钢管以冷却单元（9）以不低于80℃/分钟的冷却速度冷却至不高于Ar3相变点的温度。 6）将冷却的无缝钢管在850°-1000℃再次加热10秒至30分钟，淬火然后回火。

3. 发明申请

WO1998023784A1 STEEL HAVING EXCELLENT MACHINABILITY AND MACHINED COMPONENT 审中-公开
标题翻译：具有优异机械性能和机械组件的钢
公开(公告)号：WO1998023784A1
公开(公告)日：1998-06-04
申请号：PCT/JP1997004297
申请日：1997-11-25
申请人： SUMITOMO METAL INDUSTRIES, LTD. , WATARI, Koji , OKADA, Yasutaka
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： C22C38/00
CPC分类号： C22C38/60 , C22C38/02 , C22C38/04 , C22C38/06
摘要： A steel with excellent machinability containing 0.05 - 0.6 wt.% of C, 0.002 - 0.2 wt.% of S, 0.04 - 1.0 wt.% of Ti, not more than 0.008 wt.% of N, 0 - 0.1 wt.% of Nd, 0 - 0.5 wt.% of Se, 0 - 0.05 wt.% of Te, 0 - 0.01 wt.% of Ca, 0 - 0.5 wt.% of Pb and 0 - 0.4 wt.% of Bi. The maximum diameter of titanium carbide/sulfide in this steel is not larger than 10 mu m and its content is not less than 0.05 % in terms of cleanness. The steel is a suitable material for structural components of various machines such as automobiles and other transportation machines, industrial machines, building machines, etc., for instance, crankshafts, connecting rods, gears, etc. which are subjected to machining.
摘要翻译：具有优异的可加工性的钢，其含有0.05-0.6重量％的C，0.002-0.2重量％的S，0.04-1.0重量％的Ti，不大于0.008重量％的N，0-0.1重量％的 Nd，0〜0.5重量％的Se，0〜0.05重量％的Te，0〜0.01重量％的Ca，0〜0.5重量％的Pb和0〜0.4重量％的Bi。该钢中碳化钛/硫化物的最大直径不大于10微米，其含量在清洁方面不低于0.05％。该钢是用于各种机械的结构部件的合适材料，例如汽车和其他运输机械，工业机械，建筑机械等，例如经受机械加工的曲轴，连杆，齿轮等。

4. 发明申请

WO1996036742A1 PROCESS FOR PRODUCING HIGH-STRENGTH SEAMLESS STEEL PIPE HAVING EXCELLENT SULFIDE STRESS CRACKING RESISTANCE 审中-公开
标题翻译：生产高强度无缝钢管的方法，具有优异的硫酸应变抗裂性
公开(公告)号：WO1996036742A1
公开(公告)日：1996-11-21
申请号：PCT/JP1996001274
申请日：1996-05-15
申请人： SUMITOMO METAL INDUSTRIES, LTD. , KONDO, Kunio , KUSHIDA, Takahiro , OSAKO, Hajime , TAKABE, Hideki
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： C21D08/10
CPC分类号： B21B23/00 , B21B19/04 , C21D8/10
摘要： A process for producing seamless steel pipes having performances at least equivalent to those of conventional seamless steel pipes produced by off-line heat treatment, which process permits pipe production and heat treatment to be conducted on one and the same production line. The process is characterized by using a billet of a low-alloy steel containing 0.15-0.50 % C, 0.1-1.5 % Cr, 0.1-1.5 % Mo, 0.005-0.50 % Al, 0.005-0.50 % Ti and 0.003-0.50 % Nb and also by comprising the following steps (1) to (5): (1) hot rolling the billet at a draft of 40 % or above in terms of cross-sectional compressibility, (2) finishing the hot rolling at 800-1,100 DEG C, (3) concurrently heating the rolled pipe immediately after the finishing under the temperature and time conditions satisfying the following relationship (a) in a concurrent heating unit: 23500
摘要翻译：一种生产无缝钢管的方法，该方法的性能至少等同于通过离线热处理生产的常规无缝钢管的性能，该方法允许管道生产和热处理在同一生产线上进行。该方法的特征在于使用含有0.15-0.50％C，0.1-1.5％Cr，0.1-1.5％Mo，0.005-0.50％Al，0.005-0.50％Ti和0.003-0.50％Nb的低合金钢坯料并且还包括以下步骤（1）至（5）：（1）以横截面压缩率计，以40％以上的压下量将坯料热轧，（2）在800-1100℃下进行热轧（3）在同时加热单元中的温度和时间条件（a）的温度和时间条件下，在完成后立即同时加热轧制管：23500

5. 发明申请

WO1997012072A1 HIGH-STRENGTH WELDED STEEL STRUCTURES HAVING EXCELLENT CORROSION RESISTANCE 审中-公开
标题翻译：具有优异耐腐蚀性的高强度焊接钢结构
公开(公告)号：WO1997012072A1
公开(公告)日：1997-04-03
申请号：PCT/JP1996002834
申请日：1996-09-27
申请人： SUMITOMO METAL INDUSTRIES, LTD. , UEDA, Masakatsu , OGAWA, Kazuhiro , KONDO, Kunio , IGARASHI, Masaaki
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： C22C38/00
CPC分类号： B23K35/3086 , Y10T428/12965 , Y10T428/12979
摘要： High-strength welded steel structures having excellent SSC and corrosion resistances in a wet carbon dioxide environment having a low H2S concentration. (1) A structure having a Vickers hardness of at most 350 and a joint tensil strength of at least 620 Mpa and composed of a base metal comprising a martensitic stainless steel with a martensitic or tempered martensitic structure containing 0.001 to 0.05 % C and 9 to 14 % Cr and a weld metal comprising an austenitic-ferritic stainless steel having a duplex structure composed of austenite and 35 to 75 % by volume of ferrite and containing 22 to 27 % Cr, 7 to 11 % Ni and 1.5 to 5 % Mo, and at most 0.03 % C as an impurity. (2) Another structure according to the above item (1), wherein the base metal comprises the elements described in the above item (1) and further comprises Mn, Ni, sol. Al, Mo, Cu, Ti or the like, and Fe and the weld metal comprises the elements described in the above item (1) and further comprises sol. Al, N, Cu, W or the like, and Fe. (3) Still another structure according to the above item (2), wherein the content of C, Mn, Cr or the like of the base metal is further limited to a narrower range, and so is the content of Mn, Cu, W or the like.
摘要翻译：在具有低H2S浓度的湿二氧化碳环境中具有优异的SSC和耐腐蚀性的高强度焊接钢结构。（1）维氏硬度在350以下，结合张力强度为620Mpa以上的结构，由含有马氏体或回火马氏体组织的马氏体系不锈钢构成，该马氏体系不锈钢含有0.001〜0.05％的C和9〜 14％Cr和包含具有由奥氏体和35〜75体积％的铁素体构成的双相组织的奥氏体 - 铁素体系不锈钢的焊接金属，含有22〜27％的Cr，7〜11％的Ni和1.5〜5％的Mo，和最多0.03％的C作为杂质。（2）根据上述项目（1）的另一种结构，其中所述贱金属包括上述（1）中所述的元素，并且还包含Mn，Ni，sol。 Al，Mo，Cu，Ti等，Fe和焊接金属包含上述（1）所述的元素，还含有溶胶。 Al，N，Cu，W等，Fe。（3）根据上述（2）所述的另一种结构，其中所述贱金属的C，Mn，Cr等的含量进一步限制在较窄的范围内，Mn，Cu，W的含量或类似物。

6. 发明申请

WO1995027090A1 TWO-PHASE STAINLESS STEEL 审中-公开
标题翻译：两相不锈钢
公开(公告)号：WO1995027090A1
公开(公告)日：1995-10-12
申请号：PCT/JP1995000647
申请日：1995-04-04
申请人： SUMITOMO METAL INDUSTRIES, LTD. , IGARASHI, Masaaki , KONDO, Kunio , OGAWA, Kazuhiro , UEDA, Masakatsu , MORI, Tomoki
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： C22C38/00
CPC分类号： C22C38/44 , C22C38/001
摘要： A two-phase stainless steel which is a super two-phase stainless steel which is less susceptible to cracking upon execution of welding and has a good executing quality of welding and which can exhibit good stress corrosion cracking resistance and tenacity at welds. Accordingly, it is used in a wide range of fields as a material for heat exchangers making use of seawater, and machinery and instruments, structures, for which a quality of seawater resistance is required, pipes for various chemical plants, line pipes, oil well pipes and the like. The steel has a main feature in that it contains 2.0 % or less Si by weight, 2.0 % or less Mn by weight, 22.0 to 24.0 % Cr by weight, 4.5 to 6.5 % Ni by weight, 4.0 to 4.8 % Mo by weight, 0.001 to 0.15 % Al by weight, 0.25 to 0.35 % N by weight and the remainder of Fe and inevitable impurities, and has in index RVS of 7 or less for evaluation of the susceptibility to cracking upon execution of welding and an index PREW of more than 40 for pitting corrosion resistance.
摘要翻译：一种两相不锈钢，它是一种超级两相不锈钢，在执行焊接时不易开裂，具有良好的焊接执行质量，可显示良好的抗应力腐蚀开裂性和焊缝韧性。因此，作为用于使用海水的热交换器的材料的广泛领域使用，需要耐海水性的机械和仪器，结构，各种化工厂的管道，管线管，油井管道等。该钢的主要特征在于，其含有2.0重量％以下的Si，2.0重量％以下的Mn，22重量％〜24.0重量％的Cr，4.5重量％〜6.5重量％的Ni，4.0重量％〜4.8重量％ 0.001重量％至0.15重量％的Al，0.25重量％至0.35重量％的N，剩余的Fe和不可避免的杂质，并且具有7或更小的指数RVS用于评估在执行焊接时的开裂敏感性和更多的指数PREW 40以上耐点腐蚀性。

7. 发明申请

WO1998022626A1 REDUCED IRON MANUFACTURING METHOD AND APPARATUS 审中-公开
标题翻译：减少铁制造方法和装置
公开(公告)号：WO1998022626A1
公开(公告)日：1998-05-28
申请号：PCT/JP1997004221
申请日：1997-11-19
申请人： SUMITOMO METAL INDUSTRIES, LTD. , KAMEI, Yasuo , KAWAGUCHI, Takazo , YAMAOKA, Hideyuki , NAKAMURA, Yoshihisa
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： C21B13/10
CPC分类号： C21B13/143 , C21B13/105 , C21B13/14 , C21B2100/42 , C21B2100/60 , Y02P10/136
摘要： A material mixture in which pulverized iron oxide and a pulverized solid reducer are mixed with each other is put as it is in a powdery state into a reducing furnace to form a bed of a substantially uniform thickness. The bed is compressed in some cases, and the iron oxide is reduced at high temperature maintaining the temperature in the reducing furnace at not lower than 1100 DEG C. Since the material mixture has not to be lumped, for example, pelletized, the reduced iron manufacturing cost can be lowered. This method can be easily executed by the reduced iron manufacturing apparatus of the invention. A high-quality hot metal can be manufactured by charging high-temperature reduced iron obtained by this method into a vertical furnace or a smelting melt-reducing furnace, and melting the same with a high thermal efficiency.
摘要翻译：将粉碎的氧化铁和粉碎的固体还原剂彼此混合的材料混合物原样放入还原炉中以形成基本均匀厚度的床。在一些情况下，床被压缩，并且氧化铁在高温下还原，将还原炉中的温度保持在不低于1100℃。由于材料混合物不被集中，例如造粒，还原铁制造成本可以降低。该方法可以通过本发明的还原铁制造装置容易地执行。通过将通过该方法获得的高温还原铁装入立式炉或冶炼熔融还原炉，并以高的热效率将其熔融，可以制造高品质的铁水。

8. 发明申请

WO1998010888A1 WELDING MATERIAL FOR STAINLESS STEELS 审中-公开
标题翻译：不锈钢焊接材料
公开(公告)号：WO1998010888A1
公开(公告)日：1998-03-19
申请号：PCT/JP1997003216
申请日：1997-09-11
申请人： SUMITOMO METAL INDUSTRIES, LTD. , SUMIKIN WELDING INDUSTRIES, LTD. , MURATA, Yoshiaki , KOMIZO, Yuichi , HIRATA, Hiroyuki
发明人： SUMITOMO METAL INDUSTRIES, LTD. , SUMIKIN WELDING INDUSTRIES, LTD.
IPC分类号： B23K35/368
CPC分类号： B23K35/3086 , B23K35/0266
摘要： A welding material for stainless steels which provides a welding metal having excellent corrosion resistance and mechanical properties without defect in the wearable electrode-type welding or in the nonwearable-type welding of all position, facilitating the machining for forming wires. The welding material is a composite wire comprising an outer formation of a steel and a filler without slag-forming agent packaged inside the outer formation. The wire as a whole has the following chemical composition (% by weight): C: 0.03 % or less, Si: 1.0 % or less, Mn: 1.5 % or less, P: 0.04 % or less, S: 0.01 % or less, Al: 0.5 % or less, Ni: 8.0 to 10.0%, Cr: 22.0 to 26.0 %, Mo: 2.0 to 5.0 %, N: 0.12 to 0.24 %, Co: 3.0 % or less, W: 5.0 % or less, Cu: 2.0 % or less, V: 1.50 % or less, the remainder being Fe and unavoidable impurities. The welding material has an anti-pitting index PREW represented by the following formula (1): PREW = Cr + 3.3 (Mo + 0.5W) + 16N of not smaller than 42.0 and a ferrite capacity index Ph represented by the following formula (2): Ph = Ni + 30(C + N) - 0.6(Cr + 1.5Si + Mo + 0.4W) + 5.6/Cr + 1.5Si + Mo + 0.4W - 6 of 0.12 to 0.25.
摘要翻译：一种用于不锈钢的焊接材料，其提供具有优异的耐腐蚀性和机械性能的焊接金属，在可穿戴电极型焊接中的无缺陷或所有位置的非固化型焊接中，有助于形成电线的加工。该焊接材料是一种复合线材，其包括外部形成的钢和不包含成型剂的填料，其包裹在外部结构内部。电线整体具有以下化学组成（重量％）：C：0.03％以下，Si：1.0％以下，Mn：1.5％以下，P：0.04％以下，S：0.01％以下，Al：0.5％以下，Ni：8.0〜10.0％，Cr：22.0〜26.0％，Mo：2.0〜5.0％，N：0.12〜0.24％，Co：3.0％以下，W：5.0％ Cu：2.0％以下，V：1.50％以下，余量为Fe和不可避免的杂质。焊接材料具有以下公式（1）表示的抗点蚀指数PREW：PREW = Cr + 3.3（Mo + 0.5W）+ 16N为42.0以上，铁素体能力指数Ph为由下式（2 ）：Ph = Ni + 30（C + N）-0.6（Cr + 1.5Si + Mo + 0.4W）+ 5.6 / Cr + 1.5Si + Mo + 0.4W-6为0.12〜0.25。

9. 发明申请

WO1997014521A1 METHOD FOR CONTROLLING THE LEVEL OF MOLTEN METAL FOR A CONTINUOUS CASTING MACHINE 审中-公开
标题翻译：用于控制连续铸造机的金属含量的方法
公开(公告)号：WO1997014521A1
公开(公告)日：1997-04-24
申请号：PCT/JP1996002984
申请日：1996-10-15
申请人： SUMITOMO METAL INDUSTRIES, LTD. , HANAZAKI, Kazuharu , OKA, Masahiko
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： B22D11/18
CPC分类号： B22D11/181
摘要： A method for controlling the level of molten metal for a continuous casting machine provided with a non-solidified rolling device in order to control a change in level of the molten metal due to the change in the operating conditions such as the drawing speed, and rolling speed and improve a product yield, the method comprising the steps of: (i) estimating disturbance imparted by a change of the operating conditions of a continuous casting machine to the level of molten metal before the change occurs that causes a molten metal level fluctuation; (ii) obtaining a correcting amount of the controlling instruction that can remove the estimated disturbance and a delay time required for the movement of a molten metal pouring means caused by an instruction including the correcting amount; and (iii) providing a control instruction to which the correcting amount is added earlier by a time equal to the delay time than the initiation of the change of the operation.
摘要翻译：一种用于控制具有非凝固滚动装置的连续铸造机的熔融金属的水平的方法，以便控制由于诸如拉拔速度的操作条件的变化导致的熔融金属的水平的变化，并且轧制速度提高产品产量，该方法包括以下步骤：（i）在变化发生之前，将连续铸造机的操作条件的变化所估计的干扰估计为熔融金属水平波动的变化; （ii）获得能够消除所估计的扰动的控制指令的校正量和由包括校正量的指令引起的熔融金属浇注装置移动所需的延迟时间; 以及（iii）提供一个控制指令，在该控制指令中，比起开始的操作提前一个等于延迟时间的时间加上校正量的控制指令。

10. 发明申请

WO1997000748A1 METHOD OF CONTINUOUSLY CASTING THIN CAST PIECES 审中-公开
标题翻译：连续铸造铸件的方法
公开(公告)号：WO1997000748A1
公开(公告)日：1997-01-09
申请号：PCT/JP1996001701
申请日：1996-06-20
申请人： SUMITOMO METAL INDUSTRIES, LTD. , KANAZAWA, Takashi , HIRAKI, Sei , KUMAKURA, Seiji
发明人： SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： B22D11/20
CPC分类号： B22D11/1206
摘要： Object: to provide a method of continuously casting thin cast pieces. Constitution: a method of unsolidified rolling continuous casting, by which unsolidified cast pieces are subjected to rolling in a roller apron zone to produce thin cast pieces, and in which thin cast pieces are cast in the following steps 1 and 2: 1. a steady casting speed is temporarily decreased to a speed, at which thin cast pieces after rolling become completely solidified in an unsolidified rolling zone, and 2. after a thickness of a thin cast piece having been subjected to rolling is restored to an original thickness of the cast piece before the start of rolling, a casting speed is again increased to the original steady casting speed to release a rolling force at the time of rolling.
摘要翻译：对象：提供连续铸造薄铸件的方法。结构：一种非固化轧制连续铸造方法，其中未固化的铸件在滚筒围裙区域中进行轧制以制造薄铸件，并且在下列步骤1和2中铸造薄铸件：1.稳定铸造速度暂时降低到轧制后的薄铸件在未固化轧制区域中完全固化的速度，以及在经过轧制的薄铸件的厚度恢复到铸件的原始厚度之后在轧制开始之前，铸造速度再次提高到原始的稳定铸造速度，以在轧制时释放轧制力。

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