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1. 发明专利

JPH1157813A ROLLING STAND ELEMENT AND ROLLING STAND OBTAINED THEREWITH 失效
公开(公告)号：JPH1157813A
公开(公告)日：1999-03-02
申请号：JP13907798
申请日：1998-05-21
申请人： DANIELI OFF MECC
发明人： DANIELSSON KURT , SIMONSSON BENGT , TOMAT FERRUCCIO
IPC分类号： B21B27/02 , B21B13/00 , B21B13/12 , B21B31/26 , B21B35/04 , B21B35/12
摘要： PROBLEM TO BE SOLVED: To provide a finish rolling stand with one or more passes which operates at the speed far faster than that attain noble at present. SOLUTION: This element is for a finishing or post-finishing for the thin products with a nominal diameter or transversal dimension between 4 and 16 millimeter, and is able to be associated with another element to obtain a rolling pass, and comprises a support box 14, a driving shaft 24 and a couple driving shaft 25 to support a cantilevered rolling roll or ring 12. The couple driving shaft 25 is rotatably mounted to a flange 13, which is mounted on the support box 14 in such a manner that the flange can rotate around the axis of the driving shaft 24 for angularly moving the couple driving shaft 25 against the driven shaft 24, wile maintaining the two shafts 24, 25 constantly meshed therebetween. A corresponding rolling stand for finishing and post-finishing, including sat least a pair of elements as above, in which, when several pairs are provided, the center distance between one pair and the adjacent one is between 130 and 450 millimeter.

2. 发明专利

JPH10277601A ROLLING METHOD FOR THIN AND FLAT PRODUCT AND RELATED ROLLING LINE 失效
公开(公告)号：JPH10277601A
公开(公告)日：1998-10-20
申请号：JP7157598
申请日：1998-03-20
申请人： DANIELI OFF MECC
发明人： PAOLO BOBIG , BRUNO D GISTO
IPC分类号： B21B45/00 , B21B1/00 , B21B1/24 , B21B1/26 , B21B1/32 , B21B1/46 , B21B15/00 , C21D8/02
摘要： PROBLEM TO BE SOLVED: To obtain a thin rolled product and an extremely thin rolled product having very high reference surfaces and inside quality by allowing at least a part of a finishing pass to occur in ferrite step or austenite step as necessary. SOLUTION: In a finishing line 10, a finishing row 19 which is composed of blocks 19a and 19b, is provided, and a temperature adjusting and adjusting device 24 is provided between them. In the production of the product 1.0 to 1.5 mm in thickness or over, the finished product goes out from the first block 19a, is cooled in the temperature adjusting and adjusting device 24, and next, is wound on a coil. For the extremely thin product 0.6 to 0.7 mm in thickness, the product 1.0 to 1.4 mm in thickness goes out from the first block 19a, and next, after it has been cooled in the temperature adjusting and adjusting device 24 by which an allotropic transformation from phase γ to phase α occurs, it is rolled to a desired thickness in the second block 19b. Since the pass of a final rolling down is applied to the product which is in the ferrite state α, a pickling treatment is performed to the product.

3. 发明专利

JPH08168856A EXHAUST NOZZLE FOR CONTINUOUS CASTING 失效
公开(公告)号：JPH08168856A
公开(公告)日：1996-07-02
申请号：JP13018895
申请日：1995-05-29
申请人： DANIELI OFF MECC
发明人： ANBERUTO MERONI , DOMENIKO UOGURAA RUZA , ANDOREA KARUBONI
IPC分类号： B22D11/10 , B22D41/50
摘要： PURPOSE: To provide a discharge nozzle for continuous casting which is capable of discharging a slab at an extremely high velocity of flow for production and is used on conjunction with a crystallization apparatus. CONSTITUTION: The discharge nozzle 10 has an approximately vertical discharge pipe 11 which is closed at its lower end and includes lateral discharge holes 14 facing toward the narrow sides of the mold and cooperating with means 13 that distribute and deflect the flow of liquid metal. The pipe consists of a first segment 11a having a downwardly converting circular cross-section and a second downwardly diverging segment 11b with a cross-section which can be varied progressively from circular to rectangular. The distribution and deflection means consist of two distribution chambers 15, one per each lateral discharge hole. The distribution chambers are open at their upper 16a and lower 16b portions and consist of a side wall which, at the opposite ends of the lateral discharge hole, is conformed as a downwardly diverging deflector 18 forming an angle α with the vertical between 10 deg. and 35 deg..

4. 发明专利

JPH0798013A SUPPORTER FOR ROLL RING OF CANTILEVER TYPE ROLL STAND 失效
公开(公告)号：JPH0798013A
公开(公告)日：1995-04-11
申请号：JP31030191
申请日：1991-11-26
申请人： DANIELI OFF MECC
发明人： JIEREMAIA NONIINI
IPC分类号： F16C13/02 , B21B27/02 , F16D1/06
摘要： PURPOSE: To enhance the service life and capability of a support by designing a shaft to extend beyond a rolling ring to form a first annular protrusion, providing a second flange with an annular dent which fits the protrusion, providing a second annular protrusion which fits the first annular protrusion, and forming the undercuts of the first and second flanges from an antifriction material. CONSTITUTION: A shaft 16 extends beyond the thickness of a rolling ring 11 to form a first annular protrusion 20, which enters into an annular dent 21 by an interference fit. The annular dent 21 has in a second flange 13 a second annular protrusion which mates with the protrusion 20, and a precise connection between the annular dent 21 and the second annular protrusion inhibits mutual distortion between the flanges 12, 13 at the application of preload, and the connection between the annular dent 21 and the protrusion 20 causes the shaft 16 to be lightly stressed by the preload of an undercut 17. Rings 22 of an antifriction material are inserted on the surface of the undercut 17 to prevent slip of the rolling ring 11 on the support 10. Thus, the service life and performance of the support can be enhanced.

5. 发明专利

JPH01205812A EXTRUDING PRESS 失效
公开(公告)号：JPH01205812A
公开(公告)日：1989-08-18
申请号：JP30429088
申请日：1988-12-02
申请人： DANIELI OFF MECC
发明人： JIEREMIA NONINI , JIANPIETORO BENEDETSUCHI
IPC分类号： B21C23/21 , B21C27/00 , B21C35/04 , B21C35/06
摘要： PURPOSE: To obtain a high output by arranging at least two chambers to a container and moving in a plane perpendicular to the plane on which an axis of a chamber and a die lies to limit a time to shear a tail of a billet. CONSTITUTION: A container 20 is provided with at least two chambers 19a, 19b in which a billet 11 is correctly inserted. While a first chamber 19a is in its work process, that is, while the billet held in the chamber 19a is extruded by a ram 12, is extruded along an extrusion axis and is passed a die, a second chamber 19b freely cleans and prepares for introducing a next billet 11, introducing work of the billet 11 is helped by a charging means. By this manner, an efficiency of work cycle is increased.

6. 发明专利

JPS63115669A SMELTING AND CASTING METHOD AND PLANT THEREOF 失效
公开(公告)号：JPS63115669A
公开(公告)日：1988-05-20
申请号：JP23506387
申请日：1987-09-21
申请人： DANIELI OFF MECC
发明人： BIRAJIO PURIMABERA
IPC分类号： B22D11/10 , B22D11/14 , B22D33/00 , B22D41/13 , B22D47/00 , C21B3/00 , C21C5/52
摘要： Integrated plant (10) to convert a metallic charge continuously into semi-finished products such as billets, blooms, slabs, bars or ingots, which comprises in close cooperation a chamber (14) to pre-heat a controlled metallic charge, the chamber (14) including a burner (15) and a terminal feeder (16) feeding an electric furnace (17) with a controlled flow, and comprises also the electric furnace (17). a continuously functioning transformer (26), a multifunction manipulator (20) with two independent arms able to rotate circumferentially and to move vertically to handle two ladles (18) at one and the same time at least between a tapping station of the electric furnace (17) and a casting and tapping station (21), and at least one casting and tapping station (21) served by a tundish feeding liquid metal continuously, a station to refine the liquid metal in the ladle (18) being located between the tapping station of the furnace (17) and the tapping and casting station (21). Smelting method obtained with the plant (10) of the claims hereinbefore, which feeds molten metal coninuously at least to one casting station (21) by means of two ladles (18) feeding a tundish alternately and starts with a pre-set and variable metallic charge, such metallic charge being fed continuously in the opposite direction to heating means in a pre-heating chamber (14), such charge feeding continuously with an adjustable flow an electric furnace (17) whence liquid metal is tapped regularly and partially into ladles (18) able to move along a circumference, in which method the liquid metal is treated and refined in the ladle (18) before being delivered by one of the ladles (18) alternately into a tundish which transfers it continuously to the casting station (21) while the other ladle (18) is engaged in succession in operations of preparation, charging and refining, the cycle proceeding continuously without operating interference.

7. 发明专利

JPH10218116A METHOD FOR FORMING ROLLED SECTION BUNDLE AND ASSOCIATED DEVICE 失效
公开(公告)号：JPH10218116A
公开(公告)日：1998-08-18
申请号：JP7198
申请日：1998-01-05
申请人： DANIELI OFF MECC
发明人： BORDIGNON GIUSEPPE , LUCA ANDREA DE
IPC分类号： B65B27/10 , B65G27/10 , B65G47/52 , B65G47/57 , B65G57/18
摘要： PROBLEM TO BE SOLVED: To provide a method and a device in which a bundle of rolled sections is homogeneously disposed so as to have a compact shape and tightness. SOLUTION: Rolled sections 12 are dropped from a transportation machine 13 onto a discharge rod 14 which is disposed downward of the machine 13 in parallel therewith and can be displaced in the axial direction with respect to the machine 13 so that a horizontal discharge interval is provided intermittently to form a layer 20, and the layer 20 of the rolled sections is transferred from the rod 14 to a storing and unloading assembly 17 having at least one transfer element 21 and the element 21 is lowered gradually by a value nearly corresponding to the height of the layer 20 on the rod 14 to gradually form a single layer 20 on the rod 14, following which the single layer 20 is lowered onto the element 21 to form a bundle 11 having a desired number of layers 20 and the bundle 11 is stored, bound with a rope, or discharged to a discharge place 23.

8. 发明专利

JPH07164009A DEVICE AND METHOD FOR MANUFACTURING HOT ROLLED METAL BAND PLATE 失效
公开(公告)号：JPH07164009A
公开(公告)日：1995-06-27
申请号：JP21119993
申请日：1993-08-26
申请人： DANIELI OFF MECC , UNITED ENGINEERING INC , INT ROLLING MILL CONSULTANTS
发明人： BURUNO DEI GISUTO , BURADEIMIRU BII JINBAAGU
IPC分类号： B21B1/32 , B21B1/00 , B21B1/02 , B21B1/22 , B21B1/26 , B21B1/34 , B21B1/46 , B21B15/00 , B21B45/00 , C21D8/02
摘要： PURPOSE: To save the expenses of a plant and to manufacture metal strips thinner than conventional strips by making thickness reduction larger in a first prearranged number of stands than rather small thickness reduction in a second prearranged number of stands in a series of rolling stands. CONSTITUTION: A small type rolling plant 10 manufacturing thin metal strips is provided with a heating temperature conditioning furnace 13, a width reducing device 14, a scale removing device 15, a coil winding and unwinding device 24 and a series of rolling stands consisting of three to seven rolling stands 18 in the downstream of a continuous casting machine 11. Each rolling stand 18 is provided with at least three stages of adjustment, each stage of one rolling stand is adjusted with the corresponding rolling stage of the next stand, and large thickness reduction equal to nearly 20-60% is made in thickness reduction stages of a first prearranged number of rolling stands next to the coil winding and unwinding device 24 or in these stands. Small reduction of nearly 4-15% is made between a first two paths by the thickness reduction stages of the remaining rolling stands.

9. 发明专利

JPH07112203A METHOD AND MACHINE FOR OBTAINING NORMAL TEMPERATURE SINGLE COMPLETED FORMED MATERIAL FROM NORMAL TEMPERATURE SINGLE MULTIPLEX FORMING ELEMENT 失效
公开(公告)号：JPH07112203A
公开(公告)日：1995-05-02
申请号：JP20366092
申请日：1992-07-30
申请人： DANIELI OFF MECC
发明人： JIYANPIETORO BENEDETSUTEI , ARUFUREDO PORONI
IPC分类号： B21B15/00 , B21B1/08 , B21B1/09 , B21B31/10 , B21B39/00 , B21D3/05 , B23D23/02
摘要： PURPOSE: To obtain a method and a device with which single multi-section elements are separated into single sections at room temperature and simultaneously are finished. CONSTITUTION: The device is constituted to obtain the single finished sections in the room temperature state from the single multi-section elements 12 formed by rolling or the like. In the method in the case where the single section elements are integrated lengthwise at an edge and are connected together by a web 21, the single multi-section elements are separated into the single sections with a separator 20 equipped with upper and lower rotary blades after passing through from a drawing and guiding device 13 to a drawing device 36. The dimensions of the separated sections are adjusted with a re-gauging device 29 and are straightened with a straightening device 16.

10. 发明专利

JPH04177085A DIRECT ARC ELECTRIC FURNACE SUPPLIED WITH CONTROLLED CURRENT AND METHOD OF SUPPLYING DIRECT ARC FURNACE WITH CONTROLLED CURRENT 失效
公开(公告)号：JPH04177085A
公开(公告)日：1992-06-24
申请号：JP32620390
申请日：1990-11-29
申请人： DANIELI OFF MECC
发明人： RUSHIANO MORERO , JIANNI JIENSHINI , JIYOBANNI KOOSHIN , RIKARUDO FURAJIAKOMO
IPC分类号： H05B7/11 , F27B3/08 , H05B7/156
摘要： PURPOSE: To prevent a difficulty of gaining a return circuit for current inherent in both types of arc furnaces and an disadvantage of rectifiers that they generate odd harmonic components in large quantities, by allowing a controller to directly act on an arc current in the furnace and varying overall value of equivalent serial reactance. CONSTITUTION: A control system determines an operating point and directly acts on an arc current in a furnace to reduce disturbance. This tree-phase arc furnace is usually connected to a regulation element, which is connected in parallel to the furnace and operates independently therefrom, and three arcs in each of three phases of the furnace are regulated by a first inductor L1 according to a concept of solution for each arc. Supplying a first basic current starts power feeding. A second inductor L2 superimposes a second current onto the first current, and the second current is operated are regulated by using a thyristor T according to a transfer function that takes into consideration the operational states of the arcs by analyzing the value or initial gradient of the first current.

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