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

DE69404403T2 未知
公开(公告)号：DE69404403T2
公开(公告)日：1997-12-18
申请号：DE69404403
申请日：1994-02-23
申请人： NIPPON KOKAN KK
发明人： INOUE TADASHI , TSURU KIYOSHI , YAMAUCHI KATSUHISA , HIASA MICHIHITO
IPC分类号： C21D8/02 , C21D9/46 , C22C38/00 , C22C38/54 , H01J9/14 , H01J29/07 , C22C38/08
摘要： An alloy sheet containing Fe, Ni and Cr has an average austenite grain size of 15 to 45 mu m and a degree of mixed grain for austenite grain size of 50% or less; said alloy sheet has a gathering degree of {331} plane on a surface of said alloy sheet being 35% or less, that of {210} plane 20% or less and that of {211} plane 20% or less; said degree of mixed grain is expressed by an eqution of (¦0.5 Dmax - D¦/D) x 100 (%), where D is an average austenite grain size, and Dmax is a maximum austenite grain size in said alloy sheet. A method for manufacturing an alloy sheet for a shadow mask comprising the steps of (a) hot-rolling, (b) annealing of hot-rolled sheet, (c) cold-rolling, (d) recrystallization annealing, (e) finish cold-rolling, (f) stress relief annealing and (g) annealing before press-forming.

2. 发明专利

DE4406052A1 未知
公开(公告)号：DE4406052A1
公开(公告)日：1995-06-01
申请号：DE4406052
申请日：1994-02-24
申请人： NIPPON KOKAN KK
发明人： YAMAUCHI KATSUHISA , MISAO HITOSHI , INOUE TADASHI , TACHIBANA HIROSHI
IPC分类号： C21D8/02 , C21D9/22 , C21D9/24 , C22C38/18 , C22C38/40 , C22C38/58
摘要： Stainless steel sheet having high fracture resistance has non-metallic inclusions of A12O3, MnO and SiO2 which inevitably exist in stainless steel. The compsn. of the non-metallic inclusions is situated in the nine-point region shown on the 3-component Al2O3-MnO SiOz phase diagram. The steel has 1% on set stress of 1520 N/mm2 (155 kgf/mm ) or more and a punch test work load of at least 0.24 J (25kgf.mm). The sheet has an anisotropic difference of 1% on-set of 196 N/mm or less, being the absolute value of a difference of 1% onset stress in a rolling direction and a cross wise direction. Pref. Steel has compsn. (wt%) 0.032-0.177C, 0.24-1.9 Si, 0.47-1.82 Mn, 5.2-8.82 Ni, 13.8-18.5 Cr, 0.013-0.191 N, 0.0006-0.0024 Al, 0.0025-0.0124 O, and 0.11-0.45 Cu. non-metallic inclusions contain (wt.%) 13-13 Al2O3, 25-50 MnO, 31.54 SiO2. The sheet contains 40-90% martensite in the thickness direction.

3. 发明专利

DE4329305A1 未知
公开(公告)号：DE4329305A1
公开(公告)日：1994-09-15
申请号：DE4329305
申请日：1993-08-31
申请人： NIPPON KOKAN KK
发明人： MISAO HITOSHI , YAMAUCHI KATSUHISA , INOUE TADASHI , OKITA TOMOYOSHI
IPC分类号： C21D8/02 , C22C38/40
摘要： A stainless steel sheet essentially consisting of: 0.01 to 0.2 wt. % C, 0.1 to 2 wt. % Si, 0.1 to 2 wt. % Mn, 4 to 11 wt. % Ni, 13 to 20 wt. % Cr, 0.01 to 0.2 wt. % N, 0.0005 to 0.0025 wt. % sol.Al, 0.002 to 0.01 wt. % O, 0.009 wt. % or less S, and the balance being Fe and inevitable impurities; the sheet containing 40 to 90% martensite; and the steel sheet having a 1400 N/mm2 or more tensile stress when a tensile strain is 1.0%. The invention also provides a method for producing a stainless steel sheet comprising the steps of: applying to the steel sheet a process of first cold rolling (CR1)-first intermediate annealing-second cold rolling (CR2)-second intermediate annealing-third cold rolling (CR3)-the final annealing-fourth cold rolling (CR4)-low temperature heat treatment; the first-, second- and third cold reduction ratio being 30% to 60%; the annealing temperatures in the first-, second- and final annealing being in the range of 950 DEG C. to 1100 DEG C.; the fourth cold reduction ratio being 66% to 76%; and the low temperature heat treatment ranging 300 DEG C. to 600 DEG C. for a period of 0.1 sec to 300 sec.

4. 发明专利

DE4329305C2 未知
公开(公告)号：DE4329305C2
公开(公告)日：1998-12-17
申请号：DE4329305
申请日：1993-08-31
申请人： NIPPON KOKAN KK
发明人： MISAO HITOSHI , YAMAUCHI KATSUHISA , INOUE TADASHI , OKITA TOMOYOSHI
IPC分类号： C21D8/02 , C22C38/40
摘要： A stainless steel sheet essentially consisting of: 0.01 to 0.2 wt. % C, 0.1 to 2 wt. % Si, 0.1 to 2 wt. % Mn, 4 to 11 wt. % Ni, 13 to 20 wt. % Cr, 0.01 to 0.2 wt. % N, 0.0005 to 0.0025 wt. % sol.Al, 0.002 to 0.01 wt. % O, 0.009 wt. % or less S, and the balance being Fe and inevitable impurities; the sheet containing 40 to 90% martensite; and the steel sheet having a 1400 N/mm2 or more tensile stress when a tensile strain is 1.0%. The invention also provides a method for producing a stainless steel sheet comprising the steps of: applying to the steel sheet a process of first cold rolling (CR1)-first intermediate annealing-second cold rolling (CR2)-second intermediate annealing-third cold rolling (CR3)-the final annealing-fourth cold rolling (CR4)-low temperature heat treatment; the first-, second- and third cold reduction ratio being 30% to 60%; the annealing temperatures in the first-, second- and final annealing being in the range of 950 DEG C. to 1100 DEG C.; the fourth cold reduction ratio being 66% to 76%; and the low temperature heat treatment ranging 300 DEG C. to 600 DEG C. for a period of 0.1 sec to 300 sec.

5. 发明专利

DE69404403D1 未知
公开(公告)号：DE69404403D1
公开(公告)日：1997-08-28
申请号：DE69404403
申请日：1994-02-23
申请人： NIPPON KOKAN KK
发明人： INOUE TADASHI , TSURU KIYOSHI , YAMAUCHI KATSUHISA , HIASA MICHIHITO
IPC分类号： C21D8/02 , C21D9/46 , C22C38/00 , C22C38/54 , H01J9/14 , H01J29/07 , C22C38/08
摘要： An alloy sheet containing Fe, Ni and Cr has an average austenite grain size of 15 to 45 mu m and a degree of mixed grain for austenite grain size of 50% or less; said alloy sheet has a gathering degree of {331} plane on a surface of said alloy sheet being 35% or less, that of {210} plane 20% or less and that of {211} plane 20% or less; said degree of mixed grain is expressed by an eqution of (¦0.5 Dmax - D¦/D) x 100 (%), where D is an average austenite grain size, and Dmax is a maximum austenite grain size in said alloy sheet. A method for manufacturing an alloy sheet for a shadow mask comprising the steps of (a) hot-rolling, (b) annealing of hot-rolled sheet, (c) cold-rolling, (d) recrystallization annealing, (e) finish cold-rolling, (f) stress relief annealing and (g) annealing before press-forming.

6. 发明专利

DE4406040A1 Stainless steel sheet having high fracture resistance 未知
$Stainless steel sheet having high fracture resistance$
公开(公告)号：DE4406040A1
公开(公告)日：1995-06-01
申请号：DE4406040
申请日：1994-02-24
申请人： NIPPON KOKAN KK
发明人： YAMAUCHI KATSUHISA , MISAO HITOSHI , INOUE TADASHI , TACHIBANA HIROSHI
IPC分类号： C21D8/02 , C21D9/22 , C21D9/24 , C22C38/18 , C22C38/40 , C22C38/58
摘要： Stainless steel sheet having high fracture resistance has non-metallic inclusions of A12O3, MnO and SiO2 which inevitably exist in stainless steel. The compsn. of the non-metallic inclusions is situated in the nine-point region shown on the 3-component Al2O3-MnO SiOz phase diagram. The steel has 1% on set stress of 1520 N/mm2 (155 kgf/mm ) or more and a punch test work load of at least 0.24 J (25kgf.mm). The sheet has an anisotropic difference of 1% on-set of 196 N/mm or less, being the absolute value of a difference of 1% onset stress in a rolling direction and a cross wise direction. Pref. Steel has compsn. (wt%) 0.032-0.177C, 0.24-1.9 Si, 0.47-1.82 Mn, 5.2-8.82 Ni, 13.8-18.5 Cr, 0.013-0.191 N, 0.0006-0.0024 Al, 0.0025-0.0124 O, and 0.11-0.45 Cu. non-metallic inclusions contain (wt.%) 13-13 Al2O3, 25-50 MnO, 31.54 SiO2. The sheet contains 40-90% martensite in the thickness direction.

7. 发明专利

JPH10306349A LOW THERMAL EXPANSION ALLOY SHEET FOR ELECTRONIC PARTS, EXCELLENT IN ETCHING CHARACTERISTIC 失效
公开(公告)号：JPH10306349A
公开(公告)日：1998-11-17
申请号：JP11110697
申请日：1997-04-28
申请人： NIPPON KOKAN KK
发明人： HYODO TOMOAKI , YAMAUCHI KATSUHISA , ARIGA TAMAKO , OMURA MASAKI
IPC分类号： C22C38/00 , C22C38/08 , C22C38/10 , H01J29/07 , H01L23/48
摘要： PROBLEM TO BE SOLVED: To provide a low thermal expansion alloy sheet for electronic parts, free from the occurrence of inferior etching, such as striped irregularity, causing deterioration in the local visibility of image. SOLUTION: This alloy sheet is composed of an Fe-Ni alloy containing, by mass, 32-38% Ni or an Fe-Ni-Co alloy containing, by mass, 23-38% Ni and =500 μm, or further, the proportion (%) of degree of orientation of the 100} crystal plane to the rolling surface is 20-40% or >=80%. The alloy sheet is used as a starting sheet for a product in which a pit pitch by eyching is regulated to

8. 发明专利

JPH10204541A PRODUCTION OF LOW-THERMAL-EXPANSION ALLOY SHEET EXCELLENT IN SHEET SHAPE AND HEAT SHRINKAGE RESISTANCE 失效
公开(公告)号：JPH10204541A
公开(公告)日：1998-08-04
申请号：JP636297
申请日：1997-01-17
申请人： NIPPON KOKAN KK
发明人： HYODO TOMOAKI , YAMAUCHI KATSUHISA , OMURA MASAKI , OZAKI DAISUKE , MORITA YASUHIRO , MARUYAMA TOSHIAKI
IPC分类号： C21D8/02 , C21D9/46 , C22C38/00 , C22C38/10
摘要： PROBLEM TO BE SOLVED: To produce a low-thermal-expansion Fe-Ni alloy sheet and a low- thermal-expansion Fe-Ni-Co alloy sheet, excellent in a sheet shape and heat shrinkage resistance. SOLUTION: An Fe-Ni alloy, containing 32-38wt.% Ni, or an Fe-Ni-Co alloy, containing 32-38wt.% Ni and tension. By controlling the elongation percentage at the time of shape straightening and the conditions for the succeeding stress relief annealing to the above ranges, the degree of flatness can be regulated to

9. 发明专利

JPH1060525A PRODUCTION OF LOW THERMAL EXPANSION ALLOY THIN SHEET EXCELLENT IN SHEET SHAPE AND THERMAL SHRINKAGE RESISTANCE 失效
公开(公告)号：JPH1060525A
公开(公告)日：1998-03-03
申请号：JP22371996
申请日：1996-08-26
申请人： NIPPON KOKAN KK
发明人： HYODO TOMOAKI , YAMAUCHI KATSUHISA , OMURA MASAKI , OZAKI DAISUKE , MARUYAMA TOSHIAKI , INOUE TADASHI
IPC分类号： C21D8/02 , C21D6/00 , C22C38/00 , C22C38/08 , C22C38/10 , H01J9/14 , H01J29/07 , H01J31/20
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a Fe-Ni base low thermal expansion allay thin sheet excellent in a sheet shape and a thermal shrinkage resistance. SOLUTION: An Fe-Ni base allay contg., by weight, 32 to 38% Ni or an Fe-Ni-Co base allay contg. 23 to 38% Ni and tension for one or more times and is subsequently subjected to stress relieving annealing under the conditions of 550 to 690 deg.C steel sheet temp. and 0.1 to 8kgf/mm tension.

10. 发明专利

JPH07150305A STAINLESS STEEL THIN SHEET FOR ID BLADE BASE PLATE EXCELLENT IN BREAKING RESISTANCE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH07150305A
公开(公告)日：1995-06-13
申请号：JP32617293
申请日：1993-11-30
申请人： NIPPON KOKAN KK
发明人： YAMAUCHI KATSUHISA , MISAO HITOSHI , INOUE TADASHI , TACHIBANA HIROSHI
IPC分类号： C21D8/02 , C21D9/46 , C22C38/00 , C22C38/42
摘要： PURPOSE:To provide a stainless steel thin sheet for ID blade base plate which is less apt to cause breaking at the time of tensioning up and cutting off and a method for manufacturing the thin sheet. CONSTITUTION:The composition ratio of Al2O3, MnO and SiO2 which are nonmetallic inclusions in steel is confined within the range of 5.1-9 in an Al2O2-MnO- SiO2 system ternary phase diagram and 1.0% onset stress, anisotropic difference of 1.0% onset stress and Erichsen value are respectively taken as >=155kgf/mm , and >=4.6mm. In the case of using a metastable austenitic stainless steel as a stock, in addition to the above composition, the quantity of martensite is taken as 40-90% under a specified componential composition. This stainless steel thin sheet is manufactured, after annealing and pickling, through each stage of 1st cold rolling, intermediate annealing, 2nd cold rolling, intermediate annealing, 3rd cold rolling, final annealing, 4th cold rolling and aging treatment under prescribed drafts and heat treating conditions.

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