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1. 发明专利

JPS616212A MANUFACTURE OF CASE HARDENING STEEL FOR BEARING 失效
公开(公告)号：JPS616212A
公开(公告)日：1986-01-11
申请号：JP12823684
申请日：1984-06-20
申请人： KOBE STEEL LTD
发明人： KANEKO KOUJI , SAWADA YUUJI
IPC分类号： C22C38/00 , C21D6/00 , C21D8/00 , C21D9/00 , C22C38/18
摘要： PURPOSE:To improve remarkably the rolling fatigue characteristics of a steel contg. prescribed percentages of C, Si, Mn, S, Cr, etc. by heating the steel to a prescribed temp. and hot rolling it. CONSTITUTION:A steel contg., by weight, 0.05-0.35% C,

2. 发明专利

JPS59123714A Production of steel material where temperature at which coarse grain of austenite crystal is formed is high 失效
标题翻译：生产奥氏体晶粒形成的钢材温度高，
公开(公告)号：JPS59123714A
公开(公告)日：1984-07-17
申请号：JP22824782
申请日：1982-12-30
申请人： Kobe Steel Ltd
发明人： OOSHIRO TAKEHIKO , SAWARA HIROSUKE , INOUE TAKESHI , KOARAI JIROU , KANEKO KOUJI , AKUTAGAWA YOUICHI , MORIKAWA TSUTOMU , SAWADA YUUJI
IPC分类号： C22C38/00 , C21D8/00 , C22C38/18
CPC分类号： C21D8/00
摘要： PURPOSE:To produce a steel material where the temp. at which coarse grains of an austenite crystal are formed in high by heating steel having regulated Al/N weight ratio and (Al+2N) content to a prescribed temp. then hot rolling the steel and suppressing the AlN content after the rolling at a prescribed value or below. CONSTITUTION:A steel contg. Al and N at 1.9-3.5Al/N weight ratio and 0.045-0.065wt% (Al+2N) is heated to the temp. T( deg.C), regulated by the formula [T>=3,750 (Al%+2N%)+950] prior to hot rolling and thereafter the steel is hot- rolled so as to contain
摘要翻译：目的：生产钢材，通过将Al / N重量比和（Al + 2N）含量调节至规定温度的钢来制造奥氏体晶体的粗晶。然后对钢进行热轧，并将轧制后的AlN含量抑制在规定值以下。构成：钢筋将Al和N以1.9-3.5Al / N重量比和0.045-0.065％（Al + 2N）加热到温度。 T（℃），在热轧前由式[T> = 3,750（Al％+ 2N％）+ 950]调节，然后将钢热轧，以便在轧制后含有<40ppm的AlN。即使对钢进行回火处理，冷加工和渗碳处理也可以生产适用于不形成奥氏体晶粒的粗晶粒的细晶粒结构的表面硬化钢的钢材。可以形成上述钢，以便通常含有0.05-0.35％C，<= 0.4％Si和0.5-2％Mn，如果需要，含有0.7-1.5％的Cr。

3. 发明专利

JPS57188652A HIGH-STRENGTH AUSTENITE STEEL WITH SUPERIOR COLD WORK HARDENABILITY 失效
公开(公告)号：JPS57188652A
公开(公告)日：1982-11-19
申请号：JP7299781
申请日：1981-05-15
申请人： KOBE STEEL LTD
发明人： KANEKO KOUJI , FUCHINO YOSHIHIDE , INOUE TSUYOSHI
IPC分类号： C22C38/00 , C22C38/38
摘要： PURPOSE:To obtain a high-strength austenite steel with superior stress corrosion resistance by adding V and N to a C-Mn-Cr steel to increase the cold work hardenability or by further adding Ti, Nb or B. CONSTITUTION:This alloy consisting of 0.1-0.3% C, 0.8%), 0.2-0.6% N (C+N>0.5%) and the balance Fe with impurities or contg. further one or more among 0.1-1.0% Ti, 0.1- 1.0% Nb and 0.002-0.05% B has superior cold work hardenability corresponding to >= about 130kg.f/mm. 0.2% yield strength. Among the components C, Mn and Cr provide superior strength, superior corrosion resistance and stable nonmagnetism to the austenite steel, V and N increase the strength and cold work hardenability, and Ti, Nb and B make the grains fine and increase the strength furthermore.

4. 发明专利

JPS5723026A Spheroidization treatment for bar steel material 失效
标题翻译：钢铁材料的SPHEROIDIZED处理
公开(公告)号：JPS5723026A
公开(公告)日：1982-02-06
申请号：JP9665980
申请日：1980-07-14
申请人： Kobe Steel Ltd
发明人： INOUE TAKESHI , KANEKO KOUJI , TOYODA TETSUO
IPC分类号： C21D1/26 , C21D9/52
CPC分类号： C21D9/525
摘要： PURPOSE:To give an evenly spheroidized structure to a bar steel material by a short-period heat treatment in which a stranded bar steel material is subjected to an annealing treatment involving heating and cooling under specific conditions. CONSTITUTION:A bar steel material, e.g., of carbon steel for the structures of machinery, cold rolling, etc., is made into a strand form, and then heated to a target temperature of Ac1+30 deg.C to Ac1+150 deg.C at an average heating rate of 50 deg.C/min or more. Then, the bar steel material is held at the target temperature for 5min or less, cooled for 10min or less to the transformation point Ar1, and then cooled at an average cooling rate of 0.5 to 5 deg.C/min in a temperature region of Ac1 to 40 deg.C for spheroidization. Thus, high temperatures can be effectively utilized because the rate, time, and temperature of heating the bar steel material can be exactly controlled, so that a bar steel material having evenly spheroidized structure can be obtained by a short-period heat treatment.
摘要翻译：目的：通过短时间热处理使条状钢材均匀地球化，其中对条状钢材料进行退火处理，包括在特定条件下进行加热和冷却。构成：将诸如用于机械结构，冷轧等的碳钢的棒钢材料制成线材形式，然后加热至目标温度Ac1 + 30℃至Ac1 + 150度 ℃，平均加热速度为50℃/ min以上。然后，将棒钢材料在目标温度下保持5分钟以下，冷却至相变点Ar1 10分钟以下，然后在0.5〜5℃/ min的平均冷却速度下，在 Ac1〜40℃，用于球化。因此，可以精确地控制加热棒钢材料的速度，时间和温度，从而可以通过短时间热处理获得具有均匀球化结构的棒钢材料，从而可以有效地利用高温。

5. 发明专利

JPS5623252A LOW ALLOY STEEL HAVING SUPERIOR CARBURIZING HARDENABILITY 失效
公开(公告)号：JPS5623252A
公开(公告)日：1981-03-05
申请号：JP9927279
申请日：1979-08-02
申请人： KOBE STEEL LTD
发明人： KANEKO KOUJI , TOYODA TETSUO , INOUE TAKESHI , TAKADA HISASHI
IPC分类号： C22C38/00 , C22C38/12 , C22C38/18 , C22C38/22 , C22C38/32
摘要： PURPOSE:To obtain the titled low alloy steel capable of being carburized in a short time by adding a relatively large amount of Mn and an adequate amount of Cr and/or Mo to a low C low alloy steel. CONSTITUTION:The Si content of a low alloy steel contg. =0.25%.

6. 发明专利

JPS5432123A QUALITY IMPROVING METHOD FOR ROLLED MATERIAL IN HOT ROLLING OF STEEL WIRE OR STEEL ROD 失效
公开(公告)号：JPS5432123A
公开(公告)日：1979-03-09
申请号：JP9797977
申请日：1977-08-15
申请人： KOBE STEEL LTD
发明人： INOUE TAKESHI , TOYODA TETSUO , KANEKO KOUJI
IPC分类号： B21B45/02 , C21D1/00 , C21D8/02 , C21D8/06
摘要： PURPOSE:To improve the mecahnical properties of a rolled material such as a steel wire or a steel rod at a low cost by specifying the time of starting forced colli cooling of the material having the final stand of a hot rolling mill.

7. 发明专利

JPS53100122A HIGH STRENGTH NONNMAGNETIC IRON REINFORCING ROD 失效
公开(公告)号：JPS53100122A
公开(公告)日：1978-09-01
申请号：JP1541777
申请日：1977-02-14
申请人： KOBE STEEL LTD
发明人： KINOSHITA SHIYUUJI , KANEKO KOUJI , INOUE TAKESHI
IPC分类号： C22C38/00 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/18 , H01F1/00
摘要： PURPOSE:To economically produce a high strength non-magnetic iron reinforcing rod which can be bloomed, by austenitizing steel with Mn and stabilizing the austenite phase with C, N, Ni, Cr, Mo, V, etc.

8. 发明专利

JPS60137559A CONTINUOUS CASTING METHOD OF HIGH-CARBON CHROMIUM BEARING STEEL 失效
公开(公告)号：JPS60137559A
公开(公告)日：1985-07-22
申请号：JP24713883
申请日：1983-12-27
申请人： KOBE STEEL LTD
发明人： OONISHI TOSHIYASU , KAWASAKI SHIYOUZOU , MOTOI HIDEO , UENO NOBUAKI , SUZUKI YASUO , KANEKO KOUJI
IPC分类号： B22D11/10 , B22D11/115
摘要： PURPOSE:To decrease striate segregation and to make its quality uniform and its productivity high by installing an electromagnetic stirrer in a prescribed position and casting continuously a molten steel by and at a prescribed magnetic field, degree of heating the molten steel and casting speed. CONSTITUTION:The molten steel in an intermediate solidification period cast continuously at mm. (where the length on the short side of the casting mold); >=150mm.), d: thickness of the billet (mm.), K: solidification constant (mm./min , V: the upper limit value of billet casting speed (m/min) or VX[(d/2-5)/K] (where the length on the short side of the casting mold;

9. 发明专利

JPS59159937A Continuous spheroidization treatment of steel wire rod 失效
标题翻译：连续钢丝绳的连续处理
公开(公告)号：JPS59159937A
公开(公告)日：1984-09-10
申请号：JP3502083
申请日：1983-03-03
申请人： Kobe Steel Ltd
发明人： INOUE TAKESHI , TOYODA TETSUO , KANEKO KOUJI
IPC分类号： C21D1/26 , C21D1/32 , C21D9/52 , C21D9/68
CPC分类号： C21D1/32 , C21D9/525
摘要： PURPOSE:To form a steel wire rod into uniformly spheroidized texture in an extremely short time by heating quickly the steel wire rod in a strand state in a prescribed temp. range then winding the wire rod on a rotary drum provided in a furnace kept in a specific temp. range and taking out continuously the wire rod in a strand state after a prescribed time. CONSTITUTION:A steel wire rod in a strand state consisting of a kind of steel such as a carbon steel for machine structural purposes (SC specified in JIS), carbon steel for cold forging (SWSCH specified in JIS) or the like is quickly heated to a temp. of (Ac1+30 deg.C)-(Ac1+150 deg.C). The steel wire rod after the quick heating is wound plural turns on a rotary drum provided in a furnace kept at a temp. of 650-750 deg.C and is held for a prescribed time to soften the steel wire rod and to provide satisfactory cold processability thereto. The steel wire rod after such heat treatment is taken out in the strand state from the inside of the furnace and is subjected continuously to a spheroidization treatment.
摘要翻译：目的：通过在规定温度下快速加热钢丝线，以极短的时间将钢丝线形成均匀的球状织构。范围然后将线材卷绕在设置在保持在特定温度的炉子中的旋转鼓上。范围，并在规定时间后连续取出线材。构成：由用于机械结构目的的碳钢（JIS规定的SC），用于冷锻的碳钢（JIS规定的SWSCH等）等钢等组成的钢丝线被快速加热至温度（Ac1 + 30℃） - （Ac1 + 150℃）。快速加热后的钢丝线在设置在保持在温度下的炉中的旋转滚筒上卷绕多圈。并保持规定时间以软化钢丝线并提供令人满意的冷加工性。这种热处理后的钢丝棒从炉内取出，并连续进行球化处理。

10. 发明专利

JPS58107426A METHOD AND APPARATUS FOR SOFTENING HEAT-TREATMENT OF WIRE ROD 失效
公开(公告)号：JPS58107426A
公开(公告)日：1983-06-27
申请号：JP20646581
申请日：1981-12-21
申请人： KOBE STEEL LTD
发明人： TAKADA HISASHI , INOUE TAKESHI , KANEKO KOUJI , TOYODA TETSUO , NAGANO MISAO
IPC分类号： C21D9/52 , C21D1/26 , C21D9/56 , C21D9/60 , C21D9/68
摘要： PURPOSE:To perform the softening treatment of a steel wire rod within a very short time, in heating and softening the steel wire rod, by rapidly heating the steel wire rod at a predetermined temperature with a high frequency heater and then coiling it in a heating oven at a lower temperature. CONSTITUTION:A coiled wire rod 1 at an uncoiler 2 is straigthened by passing it through a reformer 3 and then rapidly heated at 700-900 deg.C by passing it through a heating coil 5 provided with a high frequency oscillator 4. The heated wire rod is fed through a guide pipe 9 unto an over 16 by a driving roll 6 and recoiled at a space between an inner drum 14 and an outer drum 13 on a rotary disc 12 in the oven held at 650-750 deg.C with a heater 15. After the whole of the wire rod is recoiled, it is held in the oven for a proper time, a cover 17 is detached from the oven 16, and then the recoiled wire rod is taken out together with the inner drum 14. In this way, the softening heat-treatment of the wire rod is completed. The treatment for softening the wir rod can be performed in a treating time extremely shorter than that in a conventional manner.

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