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公开(公告)号：JPS5114146A
公开(公告)日：1976-02-04
申请号：JP8646474
申请日：1974-07-26
Applicant: SUMITOMO CHEMICAL CO , SUMITOMO METAL IND
Inventor： HATANAKA KEIICHI , TAKEMOTO YASUJI , KOJIMA TAKASHI , MASE TOSHIRO , YAMAMOTO HIDEO
IPC: C10M135/32 , B21B45/00 , C10M135/18 , C10N30/00 , C10N40/24 , C21D1/26 , C21D1/70 , C23C22/68 , C25F1/06
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公开(公告)号：JP2000313917A
公开(公告)日：2000-11-14
申请号：JP12115199
申请日：1999-04-28
Applicant: SUMITOMO METAL IND
Inventor： YAMAMOTO HIDEO , MATSUSHITA SATORU
Abstract: PROBLEM TO BE SOLVED: To improve the surface quality of a steel sheet and the productivity by applying nonaqueous liquid containing one or more kinds of alkaline metals and alkaline earth metals to a stainless steel sheet, sticking these metals on the surface of the steel sheet and executing annealing. SOLUTION: In the case of executing the annealing in the sticking state of rolling oil at the material between a rolling mill 1 and a coiling machine 2B or at the upstream side of the annealing equipment 7, or in the case of executing the annealing after degreasing at the downstream side of a cleaning and degreasing device 9, the liquid containing the alkaline metals or the alkaline earth metals is applied on the steel sheet by arranging a coating nozzle 5 to each case. Desirably, the alkaline metals are Na and K and the alkaline earth metals are Ca. It is desirable that the concn. of these metals is 30-1000 ppm. The kind of steel in the stainless steel sheet is not specially limited, but austenite base is suitable among these, and the improving effect of the descaling property is obtd.
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公开(公告)号：JP2000160184A
公开(公告)日：2000-06-13
申请号：JP34242698
申请日：1998-12-02
Applicant: KYODO YUSHI , SUMITOMO METAL IND
Inventor： SAKAKIBARA MASAYOSHI , KAMIYASHIKI HIROSHI , YAMAMOTO HIDEO , MATSUSHITA SATORU
IPC: C10M171/02 , C10M171/06 , C10M173/00 , C10N20/02 , C10N20/06 , C10N40/22 , C10N40/24 , C10N70/00
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a metal processing dispersion having a narrow particle distribution breadth in a dispersion phase. SOLUTION: This metal processing dispersion includes a base oil containing at least one kind selected from a group consisting of a mineral oil, a natural oil, a synthetic ester oil and a synthetic hydrocarbon oil and a surfactant. A dispersion having
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公开(公告)号：JPH11239807A
公开(公告)日：1999-09-07
申请号：JP4381598
申请日：1998-02-25
Applicant: SUMITOMO METAL IND
Inventor： YAMAMOTO HIDEO , MATSUSHITA SATORU
Abstract: PROBLEM TO BE SOLVED: To prevent development of edge cracks, fluctuation of the rolling load, chatter marks, and breakage of steel plates by specifying the temperature of the steel plate on the inlet side of the first pass when a hot rolled austenitic stainless steel plate in which the total draft and the draft of each pass are specified, is cold rolled. SOLUTION: When a hot-rolled austenitic stainless steel plate in which the total draft is >=50%, and the draft of each pass is >=15% is cold rolled, edge cracks and generation of chatter marks of the steel plate during the cold rolling are prevented by controlling the temp. of the steel plate at the inlet side of the first path to 25 to =10% working- induced martensite is generated, and chatter marks are generated. In particular, the fluctuation in load at acceleration/deceleration part, generation of chatter marks, and breakage of the plate can be prevented, and the rolling can be stabilized even when emulsion oil is used, and the rolling is achieved at high rolling speed of >=300 m/min, using reverse type rolling mill during the winter time when the outside temperature is low, and the temperature of the inlet side steel plate is low.
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公开(公告)号：JPH10277623A
公开(公告)日：1998-10-20
申请号：JP9235897
申请日：1997-04-10
Applicant: SUMITOMO METAL IND
Inventor： YAMAMOTO HIDEO , MATSUSHITA SATORU
Abstract: PROBLEM TO BE SOLVED: To execute high speed rolling of a steel sheet required for high gloss even when a new liquid is supplied to adjust concentration and a liquid level by using a uniform solution prepared through previous addition of a prescribed amount of water to a stock solution of a rolling mill lubricant as the rolling mill lubricant of an oil-in-water type emulsion. SOLUTION: Water of 1-10 vol.% is previously added to the stock solution of a rolling mill lubricant used as an oil-in-water type emulsion to get a uniform solution, then the solution is used as the emulsion of concentration-in-water of 1-10 vol.% and thus cold rolling of a steel sheet is executed at a high speed of >= 400 mpm. Above all, by making the amount of the upper limit of water added to the stock solution of a rolling mill lubricant equal or less than the amount of blending of the emulsion in the stock solution of the rolling mill lubricant, the required time for the particle size of the emulsion to become a stationary state is shortened. Further, when the making-up supply is made after solubilization by previous addition of water to the stock solution of the roling mill lubricant, the average particle size of the oil in the water of emulsion is made into a fine particle size of
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Patent Agency Ranking
公开(公告)号：JPH08225794A
公开(公告)日：1996-09-03
申请号：JP3091495
申请日：1995-02-20
Applicant: SUMITOMO METAL IND
Inventor： YAMAMOTO HIDEO , MATSUMOTO KEIJI
Abstract: PURPOSE: To obtain a rolling oil capable of producing a coating film which is an oxide film of a rolling material on a work roll in an early stage, eliminating unevenness and enabling the rolling of a stainless steel sheet excellent in luster and provide a method for rolling the stainless steel sheet at a speed as high as >=700m/min. CONSTITUTION: This water-soluble rolling oil is obtained by blending a synthetic ester as a base oil with the following components (i) to (iii) and regulating the average particle diameter of the resultant emulsion to =8.5. (i) 2-10wt.% at least one selected from the group consisting of amine salts of 12-36C fatty acids or dibasic acids and salts of mono- or diesters having a 6-18C alkyl group of orthophosphoric acid or/and phosphorous acid with 1-18C aliphatic alkylamines, (ii) 2.5-10wt.% alkanolamine having a 2-18C alkyl group and (iii) 2-10wt.% 4-18C alcohol.
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公开(公告)号：JPH07265913A
公开(公告)日：1995-10-17
申请号：JP21241291
申请日：1991-08-23
Applicant: SUMITOMO METAL IND , MITSUBISHI HEAVY IND LTD
Inventor： YAMAMOTO HIDEO , TOMIZAWA ATSUSHI , MATSUDAIRA YUKIHIKO
Abstract: PURPOSE:To provide a roll used for improved surface gloss of a metal sheet, a grinding method therefor and a rolling method using the roll. CONSTITUTION:A roll has grind mark skewed to the peripheral direction of a roll 1, further, the skew direction is symmetrical about a boundary of roll center part. The roll is produced by the grinding method that the rotating axis of a rotating disc grinding stone is shifted at right angle to a roll axis 2, while a part of the periphery of grinding face of grinding stone is brought into contact with roll surface and traversed relatively in the axial direction, the roll is rotated, the skew angle theta (>=20 deg.) is adjusted to satisfy the prescribed condition. The angle theta is calculated from a rotating speed of grinding stone, radius of grinding stone, offset of grinding stone, relative traversing speed in roll axis direction and rotating speed of roll. This roll is used for cold rolling as a large diameter work roll to produce a metal sheet. By this method, a metal sheet of high gloss is efficiently produced without deviation and torsion of rolled stock.
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公开(公告)号：JPH07265912A
公开(公告)日：1995-10-17
申请号：JP20824791
申请日：1991-08-20
Applicant: SUMITOMO METAL IND , MITSUBISHI HEAVY IND LTD
Inventor： YAMAMOTO HIDEO , TOMIZAWA ATSUSHI , MASUI TAKESHI , MATSUDAIRA YUKIHIKO
Abstract: PURPOSE:To provide a roll used for improved surface gloss of a metal sheet, a grinding method therefor and a rolling method using the roll. CONSTITUTION:A roll has grind mark skewed to the peripheral direction of a roll 1, the skew angle is >=20 deg., further, the roughness of larger one out of an average roughness of the axial direction or peripheral direction of roll is 0.1-0.5mum. The roll 1 is produced by the grinding method that the rotating axis 4 of a disk grinding stone 3 having a radius (r) rotating in a speed VT is offset by X in right angle to the roll axis, while a part of the periphery of grinding face of grinding stone is brought into contact with the roll surface and is traversed relatively in the axial direction of roll, the roll is rotated at a speed VF and a skew angle theta is >=20 deg.. The angle theta is calculated from VT, (r), X, VF. This roll is used for cold rolling as a large diameter work roll of tandem mill, etc., a metal sheet of high gloss is produced in high efficiency.
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公开(公告)号：JPH05179276A
公开(公告)日：1993-07-20
申请号：JP34695791
申请日：1991-12-27
Applicant: SUMITOMO METAL IND
Inventor： YAMAMOTO HIDEO , YAMAMOTO TOMOAKI
IPC: C10M169/04 , C10N20/02 , C10N20/04 , C10N30/06 , C10N40/24
Abstract: PURPOSE:To obtain the subject product effective for preventing the seizure in hot-rolling, increasing the draft and the rolling speed and enabling the rolling of stainless steel in high efficiency by adding a specific dialkyl polysulfide and a phosphorous acid ester to a base oil. CONSTITUTION:The objective product having a viscosity of 100-500cst at 40 deg.C is produced by compounding (A) a base oil having a molecular weight of >=500 with (B) 20-70wt.% of a dialkyl polysulfide having a sulfur content of >=30wt.% (preferably 6-13C compound) and (C) 3-10wt.% of a phosphorous acid ester (preferably an alkyl phosphite having 6-18C alkyl group). The adjustment of the viscosity of the product is carried out e.g. by using a mineral oil having a molecular weight of 500-1,000 and a synthetic ester having a molecular weight of 724-892 as the base oil and varying the mixing ratio of the components. The product is applied generally at a rate of 0.5-30g/m .
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公开(公告)号：JPH0454522B2
公开(公告)日：1992-08-31
申请号：JP26536086
申请日：1986-11-07
Applicant: SUMITOMO METAL IND
Inventor： YAMAMOTO HIDEO , MASE TOSHIAKI
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