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1. 发明专利

JPH0156160B2 失效
公开(公告)号：JPH0156160B2
公开(公告)日：1989-11-29
申请号：JP18171381
申请日：1981-11-14
申请人： KAWATETSU KOSEN KOGYO KK , KAWASAKI SEITETSU KK
发明人： KATAOKA KUNIHIKO , ARAI KAZUO
IPC分类号： C25D5/26 , B60C9/00 , B60C9/02 , C25D5/10 , C25D7/06

2. 发明专利

JPS6144151B2 失效
公开(公告)号：JPS6144151B2
公开(公告)日：1986-10-01
申请号：JP25030883
申请日：1983-12-29
申请人： KAWASAKI SEITETSU KK , KAWATETSU KOSEN KOGYO KK
发明人： ARAI KAZUO , KATAOKA KUNIHIKO
IPC分类号： C23C10/28 , C23C26/00

3. 发明专利

JPS5884993A STEEL WIRE PLATED WITH BRASS HAVING BETA-BRASS STRUCTURE AND SHOWING SUPERIOR DRAWABILITY 失效
公开(公告)号：JPS5884993A
公开(公告)日：1983-05-21
申请号：JP18278081
申请日：1981-11-14
申请人： KAWATETSU KOSEN KOGYO KK , KAWASAKI STEEL CO
发明人： KATAOKA KUNIHIKO , ARAI KAZUO
IPC分类号： C25D5/26 , C25D3/50 , C25D3/56 , C25D7/06
摘要： PURPOSE:To obtain a steel wire plated with brass showing superior drawability by forming a layer of a ternary Cu-Zn-B alloy prepared by adding a specified percentage of B to brass contg. a specified amount of Zn and having a specified beta-brass rate on the surface of a steel wire. CONSTITUTION:A layer of a ternary Cu-Zn-B alloy prepared by adding 0.001- 10wt% B to brass contg. =10% beta-brass rate is formed on the surface of a steel plate in >=about 0.1mum, preferably >=about 0.2mum thickness. Thus, a steel wire plated with brass having a beta-brass structure and showing superior drawability is obtd.

4. 发明专利

JPS5884627A STEEL CORD EXCELLENT IN FATIGUE RESISTANCE 失效
公开(公告)号：JPS5884627A
公开(公告)日：1983-05-20
申请号：JP18231281
申请日：1981-11-16
申请人： KAWASAKI STEEL CO , KAWATETSU KOSEN KOGYO KK
发明人： ARAI KAZUO , SASAKI TOSHITAKE
IPC分类号： B21F7/00 , C21D8/06 , D07B1/06
摘要： PURPOSE:To supply a steel cord excellent in fatigue resistance and having no flaws on the surface of strands except those due to preforming by twisting strands spirally deformed by preforming into a state free from irregular twisting at zero cord rotation and thereby eliminating necessity of correcting work etc. CONSTITUTION:Strands composed of 0.68-0.75% C, 0.20-0.30% Si, 0.30-0.40% Mn, the rest substantially Fe in wt% and heat treated to form fine pearlite texture are used for this steel cord. Wire drawing working ratio is generally 96+ or -2%, cord constitution is 1X5(0.25phi). Above-mentioned strands spirally deformed by preforming are twisted. Thus, a steel cord of zero cord rotation, free from irregular twisting, small in stress loaded on the strands, little in surface flaws of strands and excellent in fatigue resistance can be obtained without performing overtwist or correcting work after twisting.

5. 发明专利

JPS5884626A TWISTING PREFORMING METHOD FOR STEEL STRANDED WIRE 失效
公开(公告)号：JPS5884626A
公开(公告)日：1983-05-20
申请号：JP18231181
申请日：1981-11-16
申请人： KAWASAKI STEEL CO , KAWATETSU KOSEN KOGYO KK
发明人： ARAI KAZUO , SASAKI TOSHITAKE
IPC分类号： B21F7/00 , D07B5/12
摘要： PURPOSE:To give uniform and sufficient characteristics by only a preforming step and to almost eliminate the need for correcting work, by specifying the ratio of the length of a blank wire to the cord twisting pitch length between three adjoining pins arranged on a straight line. CONSTITUTION:Preforming is performed by passing each blank wire 1 or a strand that constitutes a stranded wire through three pins 6, 7, 8 arranged lengthwise on a straight line, and spiral working and twisting it. The length of the wire 1 between adjoining pins is set to integer times as long as the cord twisting pitch length between an inlet side pin 6 and a center pin 7, and to semiinteger times between the center pin 7 and an outlet side pin 8, respectively. Consequently, above-mentioned characteristics are given, and rotation of the cord is made to zero. Irregular twisting is eliminated, and a correcting stage becomes almost unnecessary, surface flaws of the wire can be made very little.

6. 发明专利

JPS5881943A BRASS HAVING BETA STRUCTURE EXCELLENT IN COLD PROCESSABILITY 失效
公开(公告)号：JPS5881943A
公开(公告)日：1983-05-17
申请号：JP18031781
申请日：1981-11-12
申请人： KAWATETSU KOSEN KOGYO KK , KAWASAKI STEEL CO
发明人： KATAOKA KUNIHIKO , ARAI KAZUO
IPC分类号： C22C9/00 , C22C9/04
摘要： PURPOSE:To obtain brass having beta structure and excellent in cold processability, by making the brass from the specified composition of copper, boron and zinc. CONSTITUTION:A brass comprising 50-62.5wt% copper, 0.001-2% boron and the balance zinc has beta structure and exhibits cold processability equal to that of brass which is the easiest to work without the appearance of the beta sturcture. As the reasons for defining said composition, copper and zinc are in the defined ranges required for making the brass having the beta structure, and boron out of said range makes the brass have poor elongation, high tensile strength and hardness and poor processability. Since boron is added in the form of Fe2B, the addition of boron exceeding 2% entails the inclusion of Fe above 10% causing the noxious influence of the iron component. In this regard, its upper limit is made at 2%.

7. 发明专利

JPS5887385A METHOD AND APPARATUS FOR PRODUCING STEEL TWISTED WIRE BY BUNCHER SYSTEM 失效
公开(公告)号：JPS5887385A
公开(公告)日：1983-05-25
申请号：JP18231381
申请日：1981-11-16
申请人： KAWASAKI STEEL CO , KAWATETSU KOSEN KOGYO KK
发明人： ARAI KAZUO , KATAOKA KUNIHIKO , SHINOMIYA ETSUO
IPC分类号： B21F7/00 , D07B3/10

8. 发明专利

JPS60141866A METHOD FOR CARRYING OUT ALLOYING WITH BRASS BY THERMAL DIFFUSION 失效
公开(公告)号：JPS60141866A
公开(公告)日：1985-07-26
申请号：JP25030883
申请日：1983-12-29
申请人： KAWASAKI STEEL CO , KAWATETSU KOSEN KOGYO KK
发明人： ARAI KAZUO , KATAOKA KUNIHIKO
IPC分类号： C23C10/28 , C23C26/00
摘要： PURPOSE:To attain accurate diffusion treatment and to improve the quality of a steel material by specifying the average maximum heating temp. of the steel material, soaking and holding the steel material at the temp. in a heat insulated state for the necessary time to carry out prescribed alloying, water-cooling the steel material at once to a specified temp., and allowing it to cool. CONSTITUTION:A steel material is continuously plated with copper and zinc, and it is alloyed with brass by thermal diffusion. At this time, the average maximum heating temp. of the steel material is adjusted to 520-540 deg.C, and the steel material is soaked and held at the temp. in a heat insulated state for the necessary time to carry out said alloying. The steel material is water-cooled at once to 300-450 deg.C average temp., and it is allowed to cool properly.

9. 发明专利

JPS60141865A BRASS ALLOYING METHOD BY THERMAL DIFFUSION 失效
公开(公告)号：JPS60141865A
公开(公告)日：1985-07-26
申请号：JP25030783
申请日：1983-12-29
申请人： KAWASAKI STEEL CO , KAWATETSU KOSEN KOGYO KK
发明人： ARAI KAZUO , KATAOKA KUNIHIKO
IPC分类号： C23C10/28 , C23C26/00 , C25D21/12
摘要： PURPOSE:To correct the characteristic of a plating liquid, plating current and diffusion voltage to the set values with respect to the prescribed beta bruss rate with high accuracy by measuring on-line and continuously the characteristic of the plating liquid, the coating weight of copper and zinc and the beta brass rate after the thermal diffusion treatment and controlling on-line and automatically the characteristic of the plating liquid, plating current and diffusion voltage. CONSTITUTION:A steel wire 1 is passed successively through a copper plating cell 6 and a zinc plating cell 7 and is thus plated with copper and zinc. The plated wire is passed through a diffusion soaking cell 10 and is subjected to brass alloying by the thermal diffusion treatment. The pH, temp., specific gravity, concn., etc. of the plating liquid are continuously measured by a fluorescent X-ray analysis device 15 and a measuring device 16 for the characteristic of the plating liquid in this stage and the coating weight of the copper and zinc on the steel wire 1 and the beta brass rate after the thermal diffusion treatment are on- line measured by an X-ray diffraction device 18. The characteristic of the plating liquid, plating current and diffusion voltage are thus on-line and automatically controlled and are corrected to the set values with respect to the prescribed beta brass rate with high accuracy.

10. 发明专利

JPS58150845A METHOD OF QUANTITATIVE ANALYSIS OF MULTI-ELEMENT ALLOY PLATING LAYER BY X-RAY MEASUREMENT 失效
公开(公告)号：JPS58150845A
公开(公告)日：1983-09-07
申请号：JP3306482
申请日：1982-03-04
申请人： KAWATETSU KOSEN KOGYO KK , KAWASAKI STEEL CO
发明人： ARAI KAZUO , KATAOKA KUNIHIKO
IPC分类号： G01N23/223
摘要： PURPOSE:To perform the quantitative analysis of component elements precisely and simply without necessitating the preparation of a working curve, by conducting calculations based on theoretical formulas from the integral strength value of fluorescent X-rays of each component element of the multi-element alloy plating layer of a body to be inspected and from the integral strength of each component element of a standard sample. CONSTITUTION:The integral strength In of the flrorometric X-ray of each component element of a multi-element alloy plating layer is measured, and the quantitative analysis of the plating layer is performed from this integral strength In and the integral strength I0 of each component element of a standard sample consisting of the same component elements as the plating layer on the basis of theoretical formulas comprising a formulaI and Formula II wherein Pn is the ratio in weight of each component element of a body to be inspected; Qn, kio the ratio in weight of n of two elements n and ki in the standard sample: i=1,... (m-1) in an m-element alloy: Rn, ki Formula III wherein Rn=In/Ino; Rki=Iki/Ikio: M the ratio in sticking quantity of plating: Pno the ratio in weight of n element of the standard sample: and Mo the ratio in sticking quantity of plating of the standard sample . This method enables highly-precise quantification in a short time, while unnecessitating the preparation of a working curve which requires considerable processes and time.

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