专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2003342691A Free-cutting steel for metal mold 有权
标题翻译：用于金属模具的自由切割钢
公开(公告)号：JP2003342691A
公开(公告)日：2003-12-03
申请号：JP2002154770
申请日：2002-05-28
申请人： Nippon Koshuha Steel Co Ltd , Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 日本高周波鋼業株式会社 , 株式会社豊田中央研究所
发明人： YOSHIDA JUNJI , FURUSAWA SADAYOSHI , TAKADA YASUHISA , OKURA KAZUTAKA
IPC分类号： C22C38/00 , C22C38/24
摘要： PROBLEM TO BE SOLVED: To provide free-cutting steel for a high-hardness metal mold which prolongs the life of a tool even at a high cutting speed, can be cut regardless of its high hardness, and remarkably reduces the production cost of a metal mold. SOLUTION: This free-cutting steel for cold forging for a metal mold comprises 1.40-1.60 mass% C, 0.40 mass% or less Si, 0.60 mass% or less Mn, 0.030 mass% or less P, 0.001-0.045 mass% S, 11.0-13.0 mass% Cr, 0.80-1.20 mass% Mo, 0.20-0.50 mass% V, 0.006-0.256 mass% Al, 0.0016-0.0258 mass% N, 0.0008-0.0070 mass% O, 0.0002-0.0017 mass% Ca, and the balance substantially being Fe and unavoidable impurities. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供即使在高切削速度下延长刀具寿命的高硬度金属模具的切削钢也可以切割，而不管其高硬度如何，并且显着降低了生产成本的金属模具。该解决方案：用于金属模具的冷锻用易切削钢包括1.40-1.60质量％C，0.40质量％以下的Si，0.60质量％以下的Mn，0.030质量％以下的P，0.001-0.045质量％S，11.0-13.0质量％Cr，0.80-1.20质量％Mo，0.20-0.50质量％V，0.006-0.256质量％Al，0.0016-0.0258质量％N，0.0008-0.0070质量％O，0.0002-0.0017质量％ Ca，余量基本上为Fe和不可避免的杂质。版权所有（C）2004，JPO

2. 发明专利

JPH11279710A Bearing steel excellent in acoustic property and quietness 失效
标题翻译：轴承钢在声学性质和安静性方面优秀
公开(公告)号：JPH11279710A
公开(公告)日：1999-10-12
申请号：JP10003198
申请日：1998-03-27
申请人： Kobe Steel Ltd , Nippon Koshuha Steel Co Ltd , 日本高周波鋼業株式会社 , 株式会社神戸製鋼所
发明人： MIZUNO YUKITAKA , FURUSAWA SADAYOSHI , KANATSUKI KOJI
IPC分类号： F16C33/58 , C22C38/00 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To obtain a steel excellent in an acoustic property and quietness by making an acid insoluble impurity less than a specified pieces per unit steel when dissolving, in a mixed acid aqueous solution heated to a specified temp, the steel which contains a specified content in each of C, Si, Mn, Cr, Al and the balance Fe with inevitable impurities, and restricts Ti, O in the impurities to a specified content.
SOLUTION: A content, by weight, is 0.6-1.2% C, 0.1-2.0% Si, 0.1-2.0% Mn, 10.0-14.0% Cr, ≤0.04% Al. Ti, O in the impurities, by weight, ≤0.0015% T, ≤0.0012% O. A mixed acid aqueous solution is prepared by mixing, by mass, 60% nitric acid, 96% sulfuric acid, pure water in the volume ratio of 25:1:55 and heating to 90-95°C. An acid insuluble impurity includes Al
2 O
3 of 50%, and its size is ≥15 μm major diameter and is less than 19 pieces in 10 g of the steel. In the case corrosion resistance is not required, a Cr content is 0.8-2.0%, and in the case of needing that of medium degree, it is 2.0-10.0%.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：为了通过在溶解时将每单位钢中的特定片数的酸不溶性杂质在加热到规定温度的混合酸水溶液中，使其具有优异的声学性质和安静性的钢，在C，Si，Mn，Cr，Al中的每一种中指定含量，余量为Fe与不可避免的杂质，并将杂质中的Ti，O限制在规定的含量。解决方案：重量含量为0.6-1.2％C，0.1-2.0％Si，0.1-2.0％Mn，10.0-14.0％Cr，<= 0.04％Al。杂质中的Ti，O，<= 0.0015％T，<= 0.0012％O.混合酸水溶液通过以质量计混合60％硝酸，96％硫酸，体积中的纯水比例为25:1:55，加热至90-95℃。酸不纯的杂质包括50％的Al 2 O 3，其尺寸>15μm的大直径，并且在10g钢中小于19个。在不需要耐腐蚀性的情况下，Cr含量为0.8〜2.0％，在中等程度的情况下为2.0〜10.0％。

3. 发明专利

JP2005060812A Ferritic free cutting stainless steel 有权
标题翻译：无切割切割不锈钢
公开(公告)号：JP2005060812A
公开(公告)日：2005-03-10
申请号：JP2003296449
申请日：2003-08-20
申请人： Nippon Koshuha Steel Co Ltd , 日本高周波鋼業株式会社
发明人： SAWADA YASUO , MIZUNO YUKITAKA , YUASA YUICHI , FURUSAWA SADAYOSHI
IPC分类号： C22C38/00 , C22C38/44 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide lead-free ferritic free cutting stainless steel which has excellent outgass resistance, corrosion resistance and machinability.
SOLUTION: The ferritic free cutting stainless steel has a composition comprising, by mass, ≤0.1% C, ≤1.0% Si, ≤0.5% Mn, >0.05 to 0.15% P, 0.1 to 0.4% S, 0.5 to 1.5% Cu, ≤1.0% Ni, 16 to 21% Cr, ≤1.0% Mo, ≤0.05% N and ≤0.03% O, and the balance Fe with inevitable impurities, and in which the ratio between the Mn content and the S content, (Mn/S) is controlled to ≤2.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供无铅铁素体自由切削不锈钢，具有优异的耐气孔性，耐腐蚀性和可加工性。解决方案：铁素体自由切削不锈钢具有以质量计≤0.1％C，≤1.0％Si，≤0.5％Mn，> 0.05-0.15％P，0.1-0.4％S，0.5-1.5 ％Cu，≤1.0％Ni，16〜21％Cr，≤1.0％Mo，≤0.05％N和≤0.03％O，余量为Fe与不可避免的杂质，其中Mn含量与S含量之比，（Mn / S）控制在≤2。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2001279393A BEARING STEEL EXCELLENT IN GRINDABILITY 失效
公开(公告)号：JP2001279393A
公开(公告)日：2001-10-10
申请号：JP2000094595
申请日：2000-03-30
申请人： NIPPON KOSHUHA STEEL CO LTD
发明人： MIZUNO YUKITAKA , TAKASHIMA TOSHIAKI , FURUSAWA SADAYOSHI
IPC分类号： F16C33/32 , C22C38/00 , C22C38/38 , C22C38/58 , F16C33/34 , F16C33/62
摘要： PROBLEM TO BE SOLVED: To provide a steel material which is a bearing material used for roller bearing such as ball bearing and enables high-precision and high-efficiency grinding at the final grinding of rolling elements and to contribute to the improvement of the productivity and performance of a bearing. SOLUTION: This bearing steel excellent in grindability has a composition consisting of, by weight, 0.6-1.2% C, 0.1-2.0% Si, 0.1-2.0% Mn, 0.8-14.0% Cr and the valance Fe with inevitable impurities. Moreover, the relationship between the length, in a rolling direction, of carbonitrides composed essentially of Ti existing as the inevitable impurities and the number of these carbonitrides, with respect to 200 mm2 inspection area, is as follows: the number of the carbonitrides with a length of 10- =75 μm is n4. Further, when an inclusion index N is represented by N=2n1+5n2+10n3+15n4, 10

5. 发明专利

JP2000237839A PRODUCTION OF COLLARED ANNULAR MEMBER 失效
公开(公告)号：JP2000237839A
公开(公告)日：2000-09-05
申请号：JP4092999
申请日：1999-02-19
申请人： NIPPON KOSHUHA STEEL CO LTD , N K SEIATSU KK
发明人： OKAMOTO HIROSHI , IMAI KATSUYA , KAWADA YOKO , FURUSAWA SADAYOSHI , NAKADA MITSUAKI , IRISAWA KATSUFUMI
IPC分类号： B21J3/00 , B21J5/06 , B21J5/08 , B21J5/10 , B21K1/12 , B21K23/04
摘要： PROBLEM TO BE SOLVED: To obtain a method to produce a collared annular member not generating a defect of a crack or, etc., to a collar part and a corner part of an inner diameter and having a shape of a large radiused part, etc., to the corner part. SOLUTION: After a piece 16 cut to a size required for a product from a bar or wire rod and applied with a lubricant film on the surface is pre-formed to a size roughly the same as the outer diameter of a cylinder part of the product 20, the pre-form is formed to a collared cylindrical piece 18 having a guide face 18c for forming a collar part end face shape and subsequently the collar part end face shape 19c is formed.

6. 发明专利

JPH11197780A MANUFACTURE OF STEPPED ANNULAR MEMBER, AND INNER AND OUTER RING MEMBER 失效
公开(公告)号：JPH11197780A
公开(公告)日：1999-07-27
申请号：JP1638498
申请日：1998-01-12
申请人： NIPPON KOSHUHA STEEL CO LTD
发明人： IMAI KATSUYA , KAWADA YOKO , FURUSAWA SADAYOSHI , NAKADA MITSUAKI , OKAMOTO SATORU , IRISAWA KATSUFUMI
IPC分类号： B21J5/06 , B21K1/04 , B21K21/08
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method in which the concentricity of each inside diameter and outside diameter of a large diameter cylindrical part and a small diameter cylindrical part of a forged stepped annular member can be machined with high accuracy, the cutting of the inside and outside diameter sides can be dispensed with, and the grinding can be directly performed. SOLUTION: In a forging method in which a disk-like stock 34' is forged or extruded to form a stepped annular member 43 where a large diameter cylindrical part 35 is concentrically connected to a small diameter cylindrical part 38 through a connection part 42, a recessed part 35A of the diameter slightly smaller than the inside diameter of a large diameter part of a product is formed on one surface side of the disk-like stock, and a cup-like stock 37 having a projecting part 36 is formed on the other surface side, a small diameter cylindrical part side of a stepped annular member is formed by the forward extrusion so that a die and a punch are not relatively moved to each other in the projecting part, an inner surface of the recessed part is ironed or extruded by the forward extrusion method to form the inside diameter of the recessed part to be the same as that of a large diameter part of the product, and a bottom plate part 38 on the inside diameter side of the small diameter cylindrical part is punched to communicate the recessed ports of the large diameter cylindrical part 35 and the small diameter cylindrical part. communicate the recessed part of the large diameter cylindrical part 35 with that of the small diameter cylindrical part 38.

7. 发明专利

JP2002012941A FREE CUTTING STEEL FOR PLASTIC MOLDING DICE EXCELLENT IN FINISHED SURFACE ROUGHNESS 失效
公开(公告)号：JP2002012941A
公开(公告)日：2002-01-15
申请号：JP2000193471
申请日：2000-06-27
申请人： NIPPON KOSHUHA STEEL CO LTD
发明人： TAKASHIMA TOSHIAKI , MIZUNO YUKITAKA , FURUSAWA SADAYOSHI
IPC分类号： B29C33/38 , C22C38/00 , C22C38/40 , C22C38/44
摘要： PROBLEM TO BE SOLVED: To provide a free cutting steel for plastic molding dice low in cost and excellent in finished surface roughness, by which machinability is improved without addition of much amount of elements capable of improving machinability, and without applying special heat treatment, and by which opposite characteristics such as machinability, hardening and finished surface roughness can be improved. SOLUTION: This free cutting steel for plastic molding dice, low in cost and excellent in finished surface roughness, is composed of 0.20 to 0.60 mass % C, 0.3 to 1.00 mass % Si, 0.50 to 1.50 mass % Mn, 0.010 to 0.050 mass % S, 0.30 to 1.2 mass % Cr, 0.05 to 1.00 Ni, 0.01 to 0.05 mass % Al and the balance Fe with inevitable impurities. The steel has a structure consisting of ferrite and pearlite, wherein the ratio of area of ferrite content is 15 to 40% and the residue is pearlite, and has the hardness of 83 to 97 HRB, and further, contains at least one selected from the group consisting of 0.1 to 1.0 mass % Cu and 0.1 to 1.0 mass % Mo according to necessary.

8. 发明专利

JP2000071046A METHOD OF MANUFACTURING STEPPED AND FLANGED ANNULAR MEMBER 失效
公开(公告)号：JP2000071046A
公开(公告)日：2000-03-07
申请号：JP24278398
申请日：1998-08-28
申请人： NIPPON KOSHUHA STEEL CO LTD , N K SEIATSU KK
发明人： IMAI KATSUYA , KAWADA YOKO , FURUSAWA SADAYOSHI , OKAMOTO HIROSHI , NAKADA MITSUAKI , IRISAWA KATSUFUMI
IPC分类号： B21J5/06 , B21J5/08 , B21K1/04
摘要： PROBLEM TO BE SOLVED: To prevent cracking, and improve dimensional accuracy and strength by smoothening the roughened surface occurring when sheared at the portion to become a small-diameter portion end face through upsetting at a particular upsetting rate, and then extruding the small-diameter portion. SOLUTION: A material 20 is upset to form a flat material 21, and through forward/ backward extruding, a cup-like material 22 with a concave hole 22a in its upper portion 22A and a convex portion 22B on its lower portion, is formed. Forward-extruding is done on the convex portion 22B to form a small-diameter portion 23B side and to make the stepped cup-like material 23. A scrap 24C of the inside diameter side is punched to form a stepped annular member 24 with a large-diameter portion 24A and a small-diameter portion 24B. The upsetting rate from the material 20 is set at 55% or lower and the outer periphery face of the flat material 21 is constrained by the inside diameter face of the dies. The diameter of the flat material 21 after upsetting is made equal to the outside diameter of the large-diameter portion 24A. The small-diameter portion 21A at the center of the flat material 21 is made thick and the diameter of the small-diameter portion 21A is made to be a trapezoidal shape smaller than the inside diameter of the small-diameter portion 24B.

9. 发明专利

JPH11199966A FREE CUTTING STEEL FOR PLASTIC MOLDING DIE EXCELLENT IN ROUGHNESS OF FINISHED FACE 失效
公开(公告)号：JPH11199966A
公开(公告)日：1999-07-27
申请号：JP1638798
申请日：1998-01-12
申请人： NIPPON KOSHUHA STEEL CO LTD
发明人： TAKASHIMA TOSHIAKI , FURUSAWA SADAYOSHI , MACHIDA YUJI
IPC分类号： B29C33/38 , C22C38/00 , C22C38/06 , C22C38/18 , C22C38/20 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a steel excellent in the roughness of the finished face, furthermore good in machinability and moreover free from the need of graphitizing treatment for precipitating graphite. SOLUTION: This steel is the one having a compsn. contg., by weight, 0.20 to 0.60% C, 0.50 to 1.50% Si, 0.10 to 2.00%, Mn,

10. 发明专利

JP2001192763A HIGH WEAR RESISTANCE AND HIGH RIGIDITY STEEL 失效
公开(公告)号：JP2001192763A
公开(公告)日：2001-07-17
申请号：JP2000003308
申请日：2000-01-12
申请人： NIPPON KOSHUHA STEEL CO LTD
发明人： NAKAMURA KATSUYA , IMAI KATSUYA , FURUSAWA SADAYOSHI
IPC分类号： C22C38/00 , C22C38/24
摘要： PROBLEM TO BE SOLVED: To provide high wear resistance and high rigidity steel inexpensively producible by a melting method and also having the characteristics of a Young's modulus (GPa) of 230 or more and hardness (HRC) of 45 or more. SOLUTION: This high wear resistance and high rigidity steel has a composition containing, by weight, C of 0.1 to 4.0%, V of 3 to 20%, Mo or 1.0% or less, W of 1.0% or less and Cr of 1.0% or less and satisfying 184.6×V (wt.%)-1,000×C (wt.%)

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式