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1. 发明专利

JPS58192608A Preventing method of camber of rolled material in rolling with dissimilar diameter rolls 失效
标题翻译：滚动材料的滚动滚珠与滚筒的预防方法
公开(公告)号：JPS58192608A
公开(公告)日：1983-11-10
申请号：JP7641482
申请日：1982-05-07
申请人： Mitsubishi Heavy Ind Ltd , Nippon Steel Corp
发明人： OOYA KIYOSHI , ITAZURI YASUHIRO , HASHIMOTO KAZUYOSHI , TSUKAMOTO HIDEHIKO
IPC分类号： B21B1/22 , B21B13/14 , B21B37/00 , B21B37/28
CPC分类号： B21B13/147 , B21B2267/065 , B21B2273/02
摘要： PURPOSE:To decrease the camber of a rolled material by rolling with dissimilar diameter rolls by setting the surface roughness of a small diameter work roll larger than the surface roughness of a large diameter work roll. CONSTITUTION:The surface roughness of a lower work roll 3 having a large diameter is set smaller than the surface roughness of an upper work roll 2 having a small diameter in rolling with asymmetrical upper and lower dissimilar diameter rolls. The difference in the roughness is made at least >=0.5muRa. As the difference in the roughness is set lager, the camber at the preceding end of a rolled material is smaller and as the draft is larger, the tendency thereof is stronger. The bitting of the rolled material in the rolling mill of the next stage, etc. is accomplished satisfactorily by the above-mentioned method for preventing camber.
摘要翻译：目的：通过将小直径工作辊的表面粗糙度设置为比大直径工作辊的表面粗糙度大，通过使用不同直径的辊轧制来减少轧制材料的弯度。构成：具有大直径的下部工作辊3的表面粗糙度被设定为小于在不对称的上部和下部不同直径的辊中滚动时具有小直径的上部工作辊2的表面粗糙度。粗糙度的差异至少≥0.5μmRa。由于粗糙度的差异较大，轧制材料前端的弯度较小，而且随着牵伸力的增大，其倾向更大。通过上述防止弯度的方法，能够令人满意地实现下一阶段的轧机中轧制材料的弯曲。

2. 发明专利

JPS58192609A Rolling mill with dissimilar diameter roll 失效
标题翻译：滚筒铣刀与直径直径滚子
公开(公告)号：JPS58192609A
公开(公告)日：1983-11-10
申请号：JP7641982
申请日：1982-05-07
申请人： Mitsubishi Heavy Ind Ltd , Nippon Steel Corp
发明人： OOYA KIYOSHI , ITAZURI YASUHIRO , KOUNO KATSUAKI , IIFUSHI JIYUNICHI
IPC分类号： B21B1/24 , B21B1/22 , B21B13/14 , B21B37/00 , B21B37/32 , B21B45/02
CPC分类号： B21B13/147 , B21B2267/065 , B21B2267/10 , B21B2267/24 , B21B2273/02
摘要： PURPOSE:To decrease the fluctuation in the difference in the surface roughness between upper and lower work rolls and to match the timing for changing the rolls by making the abrasion resistance on the surface of the small diameter work roll higher than the abrasion resistance on the surface of the large diameter work roll. CONSTITUTION:The surface roughness of a large diameter lower work roll 3 is made larger than the surface roughness of a small diameter upper work roll 2, and the camber at the preceding end of a rolled material 1 is prevented. The abrasion resistance on the surface of the roll 2 that wears faster is made higher than the surface of the roll 3 by selecting the material and hardness of the rolls in such rolling mill with dissimilar diameter rolls, so that the abrasion wear between both upper and lower work rolls is made equal. The lubricity, etc. of the work rolls are made stable over a long period of time by such mechanism and the rolling is accomplished without generation of the camber at the preceding end, etc.
摘要翻译：目的：为了减小上下工作辊之间的表面粗糙度差异的波动，并且通过使小直径工作辊的表面上的耐磨性高于表面上的耐磨性来匹配改变辊的时间的大直径工作辊。构成：使大直径下工作辊3的表面粗糙度大于小直径上工作辊2的表面粗糙度，并且防止轧制材料1前端的弯度。通过选择具有不同直径的辊的这种轧机中的辊的材料和硬度，使磨损更快的辊2的表面的耐磨性高于辊3的表面，使得上部和较低的工作卷平坦。通过这种机构使工作辊的润滑性等在长时间内稳定，并且在前一端不产生弯度的情况下进行轧制。

3. 发明专利

JPS57206507A MULTISTAGE CLUSTER MILL 失效
公开(公告)号：JPS57206507A
公开(公告)日：1982-12-17
申请号：JP8948681
申请日：1981-06-12
申请人： MITSUBISHI HEAVY IND LTD , NIPPON STEEL CORP
发明人： TSUKAMOTO EIHIKO , MORIMOTO KAZUO , YAMAMOTO HIROYASU , OOYA KIYOSHI
IPC分类号： B21B13/14
摘要： PURPOSE:To uniformalize durability performances of the bearings of back up rolls in a multiple cluster mill, by making diameters of the back up rolls different in accordance with respective burden rolling loads. CONSTITUTION:In a multiple cluster mill consisting of at least a work roll 2, intermediate rolls 3a and 3b, and back up rolls 4a, 4b, and 4c in one side, the ratio D4:D3 of the dia. D4 of a central back up roll, which simultaneously supports two intermediate rolls 3a and 3b between back up rolls 4a-4b, to the dia. of D3 of a side back up roll 4c, which is positioned adjacently to the roll 4b and supports the roll 3b, is made to be in a range of >=0.4 and

4. 发明专利

JPS56151102A ROLLING METHOD FOR STRIP 失效
公开(公告)号：JPS56151102A
公开(公告)日：1981-11-24
申请号：JP5358080
申请日：1980-04-24
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： YAMAMOTO HIROYASU , OOYA KIYOSHI , TSUKAMOTO HIDEHIKO , HAYASHI KANJI
IPC分类号： B21B1/22 , B21B1/24
摘要： PURPOSE:To make the surface condition of the front and back sides of the strip uniform, and to accomplish a high draft percentage, at carryin gout the rolling work with a couple of work rolls rotating with differential circumferential velocities, by forcing the strip so as to make its surface incline to the side of work roll rotating at lower circumferential velocity against the plane including axes of two work rolls. CONSTITUTION:The strip S is rolled by a four-high rolling mill comprising the work rolls 1, 2 and the backup rolls 3, 4; hereupon, the upper work roll 1 and the lower work roll 2 are made in the same diameter, and the circumferential velocity of the upper work roll 1 is made slower than that of the lower work roll 2. Hereby, the strip S is bent to the side of the upper work roll 1 of slower velocity on the feed-in side of the rolling mill, that is, the strip surface is inclined to the side of the slower upper work roll 1 against the plane including the axes of two work rolls 1, 2; under this condition, the strip S is fed into the gap of work rolls 1, 2. For the purpose of binding the strip S, a deflector roll 7 is vertically shifted by a lifter 8.

5. 发明专利

JPS5630013A ROLLING MILL 失效
公开(公告)号：JPS5630013A
公开(公告)日：1981-03-26
申请号：JP10493379
申请日：1979-08-20
申请人： MITSUBISHI HEAVY IND LTD , NIPPON STEEL CORP
发明人： TANIMOTO TATEO , IIFUSHI JIYUNICHI , AOKI ITARU , OOYA KIYOSHI
IPC分类号： B21B13/14 , B21B37/40
摘要： PURPOSE:To make the rolling work possible to obtain the product with the uniform thickness in the direction of the breadth and the good apparance, by installing two backup rolls being provided with the crowning part on mutually opposite sides, in at least one of a pair of the work rolls, and by making those backup rolls axially shiftable. CONSTITUTION:The backup roll 7 is installed for one of work rolls 2, 3, biting the strip 1; two backup rolls 6A, 6B, are installed for at least one of work rolls 2, 3, in front of and behind this work roll in the rolling direction; the crowing parts 6A', 6B', are formed in these two backup rolls 6A, 6B, at their axial ends mutually on the opposite sides; and besides, these backup rolls 6A, 6B are made axially shiftable; the rolling mill is thus constituted. It is also possible to install above stated backup rolls respectively two on every side and to make these four backup rolls axially shiftable. By this rolling mill, the strip with uniform thickness in the direction of the breadth and the good appearance can be manufactured.

6. 发明专利

JPS55130308A ROLLING MILL FOR SHEET 失效
公开(公告)号：JPS55130308A
公开(公告)日：1980-10-09
申请号：JP3702179
申请日：1979-03-30
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： KAWANAMI TAKAO , OOYA KIYOSHI , DOI MASAAKI
IPC分类号： B21B13/14
摘要： PURPOSE:To permit a single rolling mill to roll various kinds of rolled material, by making interchangeable the cluster roll including a small diameter work roll with a large diameter single work roll. CONSTITUTION:When the ordinary material is to be rolled, the single work roll possessing diameter similar to that of the lower work roll is used instead of the cluster roll 2. And the driving shaft 14 is connected to the upper work roll and both upper and lower work rolls are driven to rotate and to perform the rolling work. On the other hand, when the hardly workable material is to be rolled, the lower work roll 6 is remained as the driving roll, and the upper work roll 3 is made undriven, and also its diameter is made as small as possible. Moreover, since the modulus of rigidity degrades by making small the work roll diameter, the cluster roll type constitution is employed so as to back up the small diameter work roll with plural backup rolls.

7. 发明专利

JPS56158205A ASYMMETRICAL ROLLING METHOD 失效
公开(公告)号：JPS56158205A
公开(公告)日：1981-12-05
申请号：JP5939380
申请日：1980-05-07
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： YAMAMOTO HIROYASU , OOYA KIYOSHI , TSUKAMOTO EIHIKO , HAYASHI KANJI
IPC分类号： B21B1/22
摘要： PURPOSE:To improve the limit of draft percentage, by changing the bending angle of a strip on the feed-in side of rolling rolls, in order to dislocate the neutral point of the strip at the roll bite. CONSTITUTION:In case of rolling a strip fed into the gap of a couple of work rolls 1, 2 having respectively different diameter, the angle of bite thetaS on the small diameter roll 1 side is made small and the angle of bite thetaL on the large diameter roll 2 side is made large. Hereby, the friction factor between the large diameter roll 2 and the strip at the roll bite is made larger as compared with the case of passing the strip horizontally. As a result of thus increased friction factor, the nonslip angle can be increased, that is the neutral point can be dislocated to the feed-in side. Accordingly, the limit of draft percentage, at which a slip generates between the roll and the strip, is increased.

8. 发明专利

JPS56158204A ASYMMETRICAL ROLLING METHOD FOR STRIP 失效
公开(公告)号：JPS56158204A
公开(公告)日：1981-12-05
申请号：JP5939280
申请日：1980-05-07
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： YAMAMOTO HIROYASU , OOYA KIYOSHI , TSUKAMOTO EIHIKO , HAYASHI KANJI
IPC分类号： B21B1/22 , B21B45/02
摘要： PURPOSE:To make the surface conditions of front and back surfaces of a rolled product uniform or dissimilar to each other as a result of an intended effect, by changing the bending angle for a strip approaching to rolling rolls. CONSTITUTION:At carrying out a rolling work for a strip S with a couple of rolling rolls having diameters different from each other, if the surface conditions of front and back surfaces of a rolled product are required to be similar to each other, the strip S is bent to the small diameter roll 1 side in order to adjust the angle of bite at the roll bite so as to make the angle of bite thetaL on the large diameter roll 2 side substantially equal to the angle bite thetaS on the small diameter roll 1 side. On the other hand, when it is intended to make the surface conditions such as the luster, roughness, etc., of the front and back surface of a rolled strip product dissimilar to each other, the angles of bite thetaS, thetaL for the strip S by the rolling rolls 1, 2 are changed. For the purpose of changing these angles of bite, a deflector roll 3 is installed on the feed-in side of the rolling rolls 1, 2 and this deflector roll 3 is vertically dislocated by an elevator such as a hydraulic cylinder, etc.

9. 发明专利

JPS5775206A Rolling method with rolls having different diameters 失效
标题翻译：具有不同直径的辊的滚压方法
公开(公告)号：JPS5775206A
公开(公告)日：1982-05-11
申请号：JP15120180
申请日：1980-10-28
申请人： Mitsubishi Heavy Ind Ltd , Nippon Steel Corp
发明人： YAMAMOTO HIROYASU , OOYA KIYOSHI , HAYASHI KANJI , TSUKAMOTO AKIHIKO
IPC分类号： B21B13/14 , B21B35/00
CPC分类号： B21B13/147
摘要： PURPOSE:To carry out a rolling process with an excellent reducing characteristic relating to the slip, biting, etc., by simultaneously driving two different-diameter roll groups consisting of a Sendzimir type roll group and a four-high type roll group, for rolling a material to be rolled. CONSTITUTION:A rolling mill is constituted of a Sendzimir type roll group comprising an upper work roll 10, the 1st intermediate rolls 12, 14, the 2nd intermediate rolls 16, 18, 20 and the upper backup rolls 22, 24, 26, 28, and a four-high type roll group comprising a lower work roll 30 and a lower backup roll 32. When a material 40 is rolled by this rolling mill, the diameter of the upper work roll 10 is made smaller than the diameter of the lower work roll 30; besides, the lower work roll 30 of the four-high type roll group is driven at the same time as one of the upper work roll 10, the 1st and 2nd intermediate rolls, or the upper backup rolls 22-28 respectively constituting the Sendzimir type roll group; and hereby, the material 40 is rolled.
摘要翻译：目的：通过同时驱动由Sendzimir型辊组和四高辊组组成的两个不同直径的辊组，进行具有优良的减滑特性的轧制过程，用于轧制一种被轧制的材料。构成：轧机由包括上工作辊10，第一中间辊12,14，第二中间辊16,18,20和上支承辊22,24,26,28的Sendzimir型辊组构成，以及包括下工作辊30和下支承辊32的四高型辊组。当通过该轧机轧制材料40时，上工作辊10的直径小于下工件的直径卷30; 此外，四高辊组的下工作辊30同时被驱动，分别构成分别构成Sendzimir型的上工作辊10，第一和第二中间辊或上支承辊22-28 卷组因此，材料40被轧制。

10. 发明专利

JPS571504A ROLLING METHOD 失效
公开(公告)号：JPS571504A
公开(公告)日：1982-01-06
申请号：JP7519080
申请日：1980-06-04
申请人： MITSUBISHI HEAVY IND LTD , NIPPON STEEL CORP
发明人： MAEDA NOBUTAKA , MORIYA MUNEO , OOYA KIYOSHI , YAMAMOTO HIROYASU
IPC分类号： B21B1/22 , B21B13/02 , B21B13/14
摘要： PURPOSE:To eliminate a difference between the front and back sides of a strip, and to prevent generation of an L-shaped camber, etc., by reciprocally passing a strip between a central large diameter, driving work roll and small diameter cluster rolls arranged above and below the central roll, and by applying a strecth-and- bending rolling work to the strip. CONSTITUTION:A constant tension is applied to a strip S between a large diameter, driving work roll 13 and the lower multistage cluster rolls A, and a large bending is given to the strip S on the side of a small diameter work roll 7; under this condition, a stretch-and-bending rolling work is applied to the strip S. When a coil held in a coiler 1 finishes a rolling work, the rotation of all of the coiler 1, an uncoiler 25, and each roller, are reversed, and an upper mutistage cluster roll B is moved down; then, the strip S is passed between a small diameter work roll 14 and the central work roll 13 in order to bend the strip S toward the roll 13 side; under this condition, a stretch-and-bending rolling work is applied to the strip S. According to the present method, a single rolling stand can eliminate the difference between the front and back sides, and the generation of an L-shaped camber, etc., can be prevented.

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