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1. 发明专利

JPS5699049A STEEL INGOT MAKING METHOD 失效
公开(公告)号：JPS5699049A
公开(公告)日：1981-08-10
申请号：JP104280
申请日：1980-01-09
申请人： NIPPON STEEL CORP
发明人： MABUCHI HIDESATO , IGARI SHIGENORI , YANO HISAHIRO
IPC分类号： B22D7/06
摘要： PURPOSE:To obtain a steel with less surface flaws and of good weldability and raise the yield rate, by specifying the distance between a mold and charging outlet holes prepared in a surface plate and the inclination of tapered wall surface inside the mold by setting a borderline depending on a certain specific value on weight of a steel ingot to be cast. CONSTITUTION:In case when a steel ingot of >=20t in weight is case, the distance C between a mold 1 and charging outlet holes 3, in molding board 2 is to be >= 350mm. and the inclination of tapered wall surface inside the mold is to be >=20mm./m, namely the distance of B should be more than 20mm. per A=1m. In case when a steel ingot of =20t in weight, if C =350mm., the intervening material in the surfacing layer will likely be causing the defect on ingot and if B>=20mm./m, big fish tail is generated at a time of blooming.

2. 发明专利

JPH0219174B2 失效
公开(公告)号：JPH0219174B2
公开(公告)日：1990-04-27
申请号：JP14972480
申请日：1980-10-25
申请人： NIPPON STEEL CORP
发明人： OKAMOTO KENTARO , NAKAO MASAJI , YAMABA RYOTA , TOMITA YUKIO , IGARI SHIGENORI
IPC分类号： C21D8/02 , C21D8/00 , C22C38/00 , C22C38/12 , C22C38/54

3. 发明专利

JPH0960422A MULTI-LAYER METAL PLATE EXCELLENT IN GAS CUTTING DURABILITY AND CASH PROTECTING STRUCTURE COMPOSED OF THE METAL PLATE 失效
公开(公告)号：JPH0960422A
公开(公告)日：1997-03-04
申请号：JP21354495
申请日：1995-08-22
申请人： NIPPON STEEL CORP
发明人： TSUZUKI TAKESHI , IMAHARU TOMOAKI , KAWABATA NORIMASA , IGARI SHIGENORI
IPC分类号： E05G1/024 , B32B15/01
摘要： PROBLEM TO BE SOLVED: To prevent cash from being stolen by covering a cash keeping house with a multi-layer metal plate having more than two layers composed of a surface layer made of stainless steel plate and a gas turbulence hastening layer which has prescribed thickness and is set between the layers for making gas cutting impossible. SOLUTION: A multi-layer metal plate 1 is formed by laminating a stainless steel plate 1a, a gas turbulence hastening layer 2 and common steel plate 1b. In addition, as occasion demands, the gas turbulence hastening layer is set between the common steel plates 1b, and aluminum plates are laminated to form the multi-layer metal plate having two or more layers. The gas turbulence hastening layer 2 is formed of material to display action to disturb a gas flow in the case of gas cutting of natural resin, synthetic resin and rubber or the like, and its thickness is set up as 0.1-1.5mm. A cash keeping house or the like for a cash automatic paying machine and a vending machine is covered with the multi-layer metal plate 1, and even when an offender intends to gas-cut the keeping house, it can not be cut in a short time. Thus the theft of the cash can be prevented.

4. 发明专利

JPS62101352A SURFACE COATING MATERIAL FOR INGOT MAKING 失效
公开(公告)号：JPS62101352A
公开(公告)日：1987-05-11
申请号：JP23763685
申请日：1985-10-25
申请人： NIPPON STEEL CORP
发明人： OGAWA KAZUO , IGARI SHIGENORI , TANIGAWA NORIO , HORI TOSHIO
IPC分类号： B22D7/10 , B22D27/06
摘要： PURPOSE:To provide a surface coating material for ingot making with which the generation of surface flaws such as net cracking of a slab is thoroughly eliminated by specifying the content of C in the SiO2-Al2O3-CaO ingot making surface coating material to be used for making an ingot of a molten Cr-contg. steel to a prescribed value or below and forming the same into a powdery shape. CONSTITUTION:The content of C in the SiO2-Al2O3-CaO ingot making surface coating material having the compsn. consisting preferably of 25-75wt% SiO2, 3-10wt% Al2O3 and 15-50wt% CaO as the base compsn. is specified to

5. 发明专利

JPH02207944A METHOD FOR PREVENTING SURFACE CRACKING IN CONTINUOUS CASTING OF SB-CONTAINING STEEL 失效
公开(公告)号：JPH02207944A
公开(公告)日：1990-08-17
申请号：JP2754089
申请日：1989-02-08
申请人： NIPPON STEEL CORP
发明人： OTOKIDA HISAO , SHIMADA TOSHIO , TANAKA MUTSUTO , IGARI SHIGENORI
IPC分类号： B22D11/00 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D11/117 , B22D11/119 , B22D11/124
摘要： PURPOSE:To improve toughness and to prevent surface crack so as to relieve or omit ingot mending prior to rolling of the ensuing stage by pouring a steel contg. a specific ratio of Sb at the specific overheating degree of the molten steel and controlling the cooling of the ingot, thereby continuously casting the steel. CONSTITUTION:The overheating degree of the molten steel at the time of pouring the molten steel into a casting mold in continuous casting of the steel contg. 0.02 to 0.15wt.% Sb is specified to

6. 发明专利

JPS642465B2 失效
公开(公告)号：JPS642465B2
公开(公告)日：1989-01-17
申请号：JP23763685
申请日：1985-10-25
申请人： NIPPON STEEL CORP
发明人： OGAWA KAZUO , IGARI SHIGENORI , TANIGAWA NORIO , HORI TOSHIO
IPC分类号： B22D7/10 , B22D27/06

7. 发明专利

JPS5641055A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPS5641055A
公开(公告)日：1981-04-17
申请号：JP11690479
申请日：1979-09-12
申请人： NIPPON STEEL CORP
发明人： KOMAI TADANOBU , IGARI SHIGENORI , MATSUKURA MITSUGI
IPC分类号： B22D11/10 , B22D11/108 , B22D11/111
摘要： PURPOSE:To prevent the longitudinal cracking of an ingot and improve productivity in continuously casting the ingot, by using the flux of the viscosity meeting the mathematical expression with respect to the casting speed to be preset as a lubricant for the mold. CONSTITUTION:In continuousy casting aluminum-killed steel or aluminum-silicon- killed steel, the flux of the viscosity eta poise determined by the formula I with respect to the casting speed v (m/min) to be preset is added into the mold and with this as a lubricating the casting is performed. Here, the reason for limiting the viscosity range determined by the formula I is: If the viscosity is lower than the value of the formula of the left side, it becomes the cause for longitudinal cracking. If the viscosity becomes larger than the value of the formula of the right side, defects such as penetration of slag into the surface layer of the ingot metal and crazing are liable to occur.

8. 发明专利

JPH0616919B2 失效
公开(公告)号：JPH0616919B2
公开(公告)日：1994-03-09
申请号：JP2754089
申请日：1989-02-08
申请人： NIPPON STEEL CORP
发明人： OTOKITA HISAO , SHIMADA TOSHIO , TANAKA MUTSUTO , IGARI SHIGENORI
IPC分类号： B22D11/00 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D11/117 , B22D11/119 , B22D11/124

9. 发明专利

JPH05285591A 失效
公开(公告)号：JPH05285591A
公开(公告)日：1993-11-02
申请号：JP9537892
申请日：1992-04-15
申请人： NIPPON STEEL CORP
发明人： NAGAO TOSHIMICHI , IGARI SHIGENORI , KONDO KATSUMI , TAKAGI NOBUHIRO
IPC分类号： B22D7/00 , B22D7/06 , B22D7/10
摘要： PURPOSE:To obtain the ingot making method which limits a thick segregated part only to the riser part and decreases a' crop amt. by using only the ordinary riser frame. CONSTITUTION:This ingot making method for a killed steel consists in forming the ingot by satisfying the conditions H1

10. 发明专利

JPS5773124A Production of steel material having high breakdown toughness 失效
标题翻译：生产具有高破裂韧性的钢材
公开(公告)号：JPS5773124A
公开(公告)日：1982-05-07
申请号：JP14972480
申请日：1980-10-25
申请人： Nippon Steel Corp
发明人： OKAMOTO KENTAROU , NAKAO HITOSHI , YAMABA RIYOUTA , TOMITA YUKIO , IGARI SHIGENORI
IPC分类号： C21D8/02 , C21D8/00 , C22C38/00 , C22C38/12 , C22C38/54
摘要： PURPOSE: To eliminate the degrading characteristic in the central part of plate thickness and improve breakdown toughness by hot rolling a steel material ingot cont. prescribed amts. of C, Mn, P, S as basic components under specific conditions.
CONSTITUTION: A steel contg. ≤0.3% C, 0.5W2.5% Mn, ≤0.02% P, and ≤0.01% S as basic components and if necessary, contg. other specific elements is produced. The ingot produced by continuosly casting this steel is heated to rollable temps., after which it is reduced of thickness down to intermediate stage thickness under the conditions wherein the composite pass rolling effect (CIRE) expressed by the equation is kept at ≤0.02. Thence, it is subjected to heat treatment according to the intermediate stage thickness, after which it is hot-rolled down to the final thickness.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：消除钢板中心部分的降解特性，并通过热轧钢材锭来提高击穿韧性。规定的。的C，Mn，P，S作为基本成分。构成：钢筋 <= 0.3％C，0.5-2.5％Mn，<= 0.02％P和<= 0.01％S作为基本组分，如果需要，产生其他具体要素。通过连续铸造该钢而制造的铸锭被加热到可轧制的温度，然后在由等式表示的复合通过轧制效应（CIRE）保持在<= 0.02的条件下将厚度减小到中间阶段的厚度。然后，根据中间层厚度进行热处理，之后将其热轧至最终厚度。

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