公开(公告)号：US4218243A

公开(公告)日：1980-08-19

申请号：US877807

申请日：1978-02-15

Applicant: Kingo Kiyonaga ,  Toshio Okuno ,  Kenji Tokuda

Inventor： Kingo Kiyonaga ,  Toshio Okuno ,  Kenji Tokuda

IPC: C03B9/48 ,  C22C38/30 ,  C22C39/14

CPC classification number: C03B9/48 ,  C22C38/30

Abstract: A steel which consists essentially of 0.25-0.65% of C, up to 2.50% of Si, up to 2.00% of Mn, 10.00-20.00% of Cr, 4.00-13.00% of Co, 1.00-3.00% of Al, up to 0.25% of N and the balance essentially Fe and ordinary impurities and satisfies the relation:Cr equivalent=-40C(%)+6Si (%)-2Mn(%)+Cr(%)-2Co(%)-30N(%)+12Al(%).ltoreq.13%provides a metal mold which need not be Cr-plated and is suitable of use in molding high-quality glass wares.

Abstract translation: 一种钢，其主要由C的0.25-0.65％，Si的2.50％，至多2.00％的Mn，10.00-20.00％的Cr，4.00-13.00％的Co，1.00-3.00％的Al组成，直到 Cr当量= -40℃（％）+ 6Si（％） - 2Mn（％）+ Cr（％）-2Co（％）-30N（％） + 12Al（％）

公开(公告)号：US4032302A

公开(公告)日：1977-06-28

申请号：US641236

申请日：1975-12-16

Applicant: Hideki Nakamura ,  Kingo Kiyonaga

Inventor： Hideki Nakamura ,  Kingo Kiyonaga

IPC: C22C33/02 ,  C22C38/00

CPC classification number: C22C33/0292

Abstract: A carbide enriched high speed tool steel having good toughness, excellent wear resistance and excellent cutting endurance which by weight consists essentially of 0.62 - 3.95 % of carbon, totally 24 - 50 % of tungsten and twice amount of molybdenum, 3.0 - 5.0 % of chromium, 1.0 - 10.0 % of vanadium, 5 - 15 % of cobalt and the balance consisting essentially of iron and impurities and which is produced by powder metallurgical process.

公开(公告)号：US4116684A

公开(公告)日：1978-09-26

申请号：US776924

申请日：1977-03-11

Applicant: Norimasa Uchida ,  Kingo Kiyonaga ,  Hideki Nakamura

Inventor： Norimasa Uchida ,  Kingo Kiyonaga ,  Hideki Nakamura

IPC: C22C38/00 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28

CPC classification number: C22C38/26 ,  C22C38/22 ,  C22C38/24 ,  C22C38/28

Abstract: A high speed tool steel having high toughness as well as excellent wear resistance and heat resistance characteristics, this steel contains, by weight, C 0.7 - 1.4%, Si 0.5% max., Mn 0.5% max., Cr 3 - 6%, W 1 - 3.2%, Mo 5.5 - 7.5%, V 1 - 3.5%, Co 15% max., N 0.02 - 0.1%, one or more of Ti, Nb, and Zr 0.02 - 0.1% in total and the balance being Fe and incidental impurities. The relationship between tungsten and molybdenum contents of the steel is expressed in the formulated range 12% .ltoreq. W + 2Mo .ltoreq. 16%.

Abstract translation: 该钢具有高韧性以及优异的耐磨性和耐热特性，该重量含有C 0.7-1.4％，Si 0.5％以上，Mn 0.5％以上，Cr 3〜6％ W 1〜3.2％，Mo 5.5〜7.5％，V 1〜3.5％，Co 15％以下，N 0.02〜0.1％，Ti，Nb，Zr中的一种以上为0.02〜0.1％，余量为 铁和杂质。 钢的钨和钼含量之间的关系用配方范围12％

公开(公告)号：US4058650A

公开(公告)日：1977-11-15

申请号：US704085

申请日：1976-07-09

Applicant: Kingo Kiyonaga ,  Ryousei Ago ,  Sei Furuichi

Inventor： Kingo Kiyonaga ,  Ryousei Ago ,  Sei Furuichi

IPC: C22C38/00 ,  B23D61/12 ,  B23D61/14 ,  C22C38/24 ,  C22C38/26 ,  C22C38/06

CPC classification number: B23D61/127 ,  C22C38/24 ,  C22C38/26 ,  Y10T428/12965

Abstract: A back material of a metal band saw high in fatigue strength which consists essentially of, by weight, 0.20 - 0.33% C, up to 1.5% Si, up to 1.5% Mn, 3.5 - 6.5% Cr, 0.05 - 0.40% V, 0.05 - 0.10% Al, 0.02 - 0.30% Nb, at least one of 1.0 - 3.0% Mo and up to 4.0% W and the balance Fe and impurities, the sum of (% Mo) + 1/2 (% W) being within the range of 1.0 - 3.0%.

Abstract translation: 金属带的背材料具有高的疲劳强度，其基本上由重量比为0.20-0.33％，高达1.5％的Si，至多1.5％的Mn，3.5-6.5％的Cr，0.05-0.40％的V， 0.05-0.10％Al，0.02-0.30％Nb，1.0-3.0％Mo和至多4.0％W中的至少一种，余量为Fe和杂质，（％Mo）+ 1/2（％W）之和为 在1.0-3.0％的范围内。