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1. 发明专利

JPH01237020A SHAPING DEVICE FOR SPIRAL RIB IN STEEL PIPE AND SHAPING METHOD FOR SPIRAL RIB BY USE OF THIS DEVICE 失效
公开(公告)号：JPH01237020A
公开(公告)日：1989-09-21
申请号：JP6270088
申请日：1988-03-16
申请人： KAWASAKI STEEL CO , YOKOHAMA KOGYO KK
发明人： HASHIMOTO MASAHARU , TOMINAGA MASANARI , TAKAHASHI CHIYOMARU , SATO SEIJI , TATENO JIRO , SEKI TOSHIHIRO
IPC分类号： B21C37/12 , B21C37/15 , B21C37/26 , B23K37/02 , B23K37/053
摘要： PURPOSE:To automatize welding of a shaped spiral rib by mounting a turning gear for a steel pipe to be worked and composing it of guide rolls, a travel base device moving relatively to rolling rolls and a welding torch. CONSTITUTION:The guide rollers 3a, 3b, 3c and the rolling rollers 7, 8 are made up so that they can oscillate respectively by prescribed angles according to a spiral locus. First, the rolling rollers 7, 8 are pushed by pressure mechanism of air cylinders 4a, 5a, to the inner surface of a rotating steel pipe 6, the guide rollers 3a-3c settle and move welding positions of a spiral steel bar 9 relatively with movement of the travel truck and simultaneously, the welding torch 10 welds the spiral bar steel 9 to the spiral locus behind the guide rollers 3a-3c. Hereby, welding of the shaped spiral rib can be automatized.

2. 发明专利

JPS63236814A DRILL STEEL TUBE PILE 失效
公开(公告)号：JPS63236814A
公开(公告)日：1988-10-03
申请号：JP6857287
申请日：1987-03-23
申请人： KAWASAKI STEEL CO
发明人： TATENO JIRO , HASHIMOTO MASAHARU , SATO SEIJI
IPC分类号： E02D5/28 , E02D5/48
摘要： PURPOSE:To obtain a drill steel tube pile which can be easily penetrated into the ground by using a pile having a ribbed conical end as a mid connector. CONSTITUTION:The tip of a pile having open end is shaped into a conical form, and ribs 2' are attached to both inner and outer faces. The lower end of the pile 1 is matched with the upper end diameter of the lower pile for mid connection. The drill steel tube pile which can be easily penetrated into the ground and integrated with the ground after penetration can be obtained.

3. 发明专利

JPH03193267A METHOD AND EQUIPMENT FOR PERFORMING AUTOMATIC WELDING OF STEEL PIPE PILE JOINT 失效
公开(公告)号：JPH03193267A
公开(公告)日：1991-08-23
申请号：JP33263089
申请日：1989-12-25
申请人： KAWASAKI STEEL CO , NIPPON SHARYO SEIZO KK
发明人： TATENO JIRO , HASHIMOTO MASAHARU , KITAHARA YOSHIZO
IPC分类号： B23K37/00 , B23K9/028 , B23K37/047
摘要： PURPOSE:To easily and safely perform field welding by connecting temporarily an upper steel pipe pile to be welded to a lower steel pipe pile, holding the body of the lower steel pipe pile to rotate horizontally a joint part of the lower steel pipe pile and performing automatic welding by a fixed welding torch on the peripheral fixed side specified position. CONSTITUTION:The lower steel pipe pile 2 is rotated and driven by a pile driver 20 and when the pile 2 is interpenetrate into the desired position, interpenetration work connecting the upper steel pipe pile 1 to the upper part thereof is continued. The steel pipe pile 1 and the steel pipe pile 2 are joined together by welding a joint weld zone 3. Welding equipment 10 is fitted to the pile driver 20. This fitted part is not moved. Welding is performed while rotating the steel pipe pile 2 without moving the welding equipment 10 which being fixed on the fixed position. At this time, an interpenetrating device 23 of the pile driver is not operated and the welding joint part of the upper and lower steel pipe piles 1 and 2 is rotated horizontally.

4. 发明专利

JPH0194112A CONSTRUCTION OF STEEL-PIPE PILE 失效
公开(公告)号：JPH0194112A
公开(公告)日：1989-04-12
申请号：JP25138187
申请日：1987-10-05
申请人： KAWASAKI STEEL CO
发明人： TATENO JIRO , HASHIMOTO MASAHARU
IPC分类号： E02D5/28 , E02D5/56 , E02D7/00 , E02D7/22
摘要： PURPOSE:To exactly set a steel tubular pile into the bearing layer and obtain a strong bearing force by a method in which an auger is inserted into the hollow of a steel tubular pile having a thread-like projection on the inner wall of its tip, and the pile is screwed on the bearing layer by a given length. CONSTITUTION:A spiral auger 3 is inserted into the hollow of a steel tubular pie 1 having a thread-like projection 2 on the inside wall of its tip. The pile 1 is set down to the bearing layer under its own weight and by a press fitting apparatus by operating the auger head 3a of the auger 3 and then penetrated into the bearing layer by a given length by turning an auger drill machine, etc. The pile 1 can thus be sufficiently set into the bearing layer to obtain a strong bearing force.

5. 发明专利

JP2512503B2 失效
公开(公告)号：JP2512503B2
公开(公告)日：1996-07-03
申请号：JP28685587
申请日：1987-11-13
申请人： KAWASAKI STEEL CO
发明人： TATENO JIRO , HASHIMOTO MASAHARU , SATO SEIJI
IPC分类号： E02D5/56 , E02D5/72

6. 发明专利

JPH01237022A STEEL PIPE HAVING SPIRAL RIB ON ITS INNER SURFACE AND ITS MANUFACTURE 失效
公开(公告)号：JPH01237022A
公开(公告)日：1989-09-21
申请号：JP6269888
申请日：1988-03-16
申请人： KAWASAKI STEEL CO
发明人： TATENO JIRO
IPC分类号： B21C37/08 , B21C37/12 , B21C37/15 , B21C37/26
摘要： PURPOSE:To manufacture a steel pipe haivng an inside spiral rib excellent in fixing strength by welding and fixing a spiral bar steel to the inner surface of the steel pipe having opposite spiral projections or grooves using them as a guide. CONSTITUTION:The bar steel 7 having the rib of prescribed project height which is formed in a spiral shape in advance is screwed, inserted, welded and fixed into the steel pipe 6 having in the steel pipe a spiral locus 5 of opposite projects 2, 2' or grooves 3 in a spiral shape which works as the guide when the bar steel is inserted and fixed. In this case, the opposite projects or grooves are desired to be smaller than about 3mm in diameter. In this way, it is possible to manufacture a steel pipe excellent in fixing strength and having a spiral rib on its inner surface.

7. 发明专利

JPS62112735A METHOD FOR FEEDING ORE FOR SINTERING 失效
公开(公告)号：JPS62112735A
公开(公告)日：1987-05-23
申请号：JP25192485
申请日：1985-11-12
申请人： KAWASAKI STEEL CO
发明人： NITTA SHOJI , TATENO JIRO
IPC分类号： F27B21/10 , C22B1/20
摘要： PURPOSE:To improve the uniformity of the quality of sintered ore, the air permeability of a charging layer and the yield of a lump by sieving compounded raw materials with an elastic net of a calssifier to which period tense and loose states are imparted, and segregating and charging the raw materials onto a pallet. CONSTITUTION:The compounded raw materials 7 in an ore feed hopper 7 are fed at a specified rate and are charged onto the rubber net 15 of the classifier 14 extended to movable frames 16, 17 attached to a rotary plate 20 at the phases deviated by 180 deg. via connecting bars 19. The two bars 19 move back and forth in the phases reverse from each other when the plate 20 is rotated by a motor 24. The net 15 is then tensed in the sections I, III and is loosened in the sections II, IV. These states are reversed in the next period and such operations are alternately repeated. The raw materials 7 receiver the grain size segregation and grain size classification and in this state the raw materials in the upper part of the net are transferred downward and in the direction opposite from the transfer direction of the ballet 4 so as to be supplied first on the pallet 4. The raw materials in the lower part of the net are thus laminated thereon. The coarse grains are thus loaded in the lower layer on the pallet 4 and the fine grains are loaded in the upper layer part. The powder coke fed from another hopper 11 is further uniformly loaded on the surface of the raw materials on the above- mentioned pallet.

8. 发明专利

JPH03194017A FOUNDATION PILE CONSTRUCTION METHOD 失效
公开(公告)号：JPH03194017A
公开(公告)日：1991-08-23
申请号：JP33262989
申请日：1989-12-25
申请人： KAWASAKI STEEL CO , NIPPON SHARYO SEIZO KK
发明人： TATENO JIRO , HASHIMOTO MASAHARU , KITAHARA YOSHIZO
IPC分类号： E02D7/22
摘要： PURPOSE:To enable a foundation pile to easily pierce through a layer having a large N value by applying an elevating action, temporarily to an open end pile body in accordance with a strength of an earth layer at the forward end of the pile, which can be obtained from a drive-in torque and a drive-in rotational speed, during the open end pile is pressed in. CONSTITUTION:In a construction method in which an open end pile which is provided, on the inner and outer surface thereof, with thread-like projections is rotated and pressed in, a strength of an earth layer at the forward end of the pile is obtained from a drive-in torque and a drive-in rotational speed. Further, if a layer having a large N value is presented among intermediate layers within a predetermined drive-in section, an elevating action is temporarily applied to the pile body in accordance with these obtained strength of the earth layer at the forward end of the pile, with a stroke in a range by which soil therearound is not disturbed. With this arrangement, the pile fan easily pierce through an intermediate layer even having an N value higher than 50, and it is possible to attain the press-in of the pile up to a predetermined drive-in depth while avoiding blocking the open end of the pile.

9. 发明专利

JPH01289576A METHOD FOR WELDING SPIRAL RIB MADE OF LINEAR MATERIAL TO STEEL PIPE SURFACE 失效
公开(公告)号：JPH01289576A
公开(公告)日：1989-11-21
申请号：JP11642188
申请日：1988-05-13
申请人： KAWASAKI STEEL CO
发明人： SHIGA ATSUSHI , TATENO JIRO , HASHIMOTO OSAMI , TSUZUKI TATSUYA
IPC分类号： B21C37/24 , B23K9/235
摘要： PURPOSE:To perform welding in an ideal state by heating or melting the surface to face the welding surface of a rib ahead of main welding and deforming and energizing it in the direction where a gap between the rib and a steel pipe is reduced to perform welding the rib to the steel pipe. CONSTITUTION:Ahead of main welding of the spiral rib 2 to the steel pipe 1, the surface to face the welding surface 3 of the rib 2 is heated or molten by a gas flame, etc. Hereby, since the surface 4 side is extended, the rib 2 is stuck fast to the steel pipe. In the case of the inside rib, the above-mentioned preliminary deforming process is especially effective. When main welding is then performed, a satisfactory bead is formed. It is not necessary to form the rib 2 to dimensions to fit closely to the steel plate 1 and it is formed to dimensions to fit idly, namely, in the case of the inside rib, its outside diameter is formed slightly smaller than the steel pipe inside diameter and in the case of the outside rib, its inside diameter is formed slightly larger than the steel plate outside diameter. By this method, a trouble where the gap between the rib and the steel pipe becomes larger is solved and welding can be performed in the ideal state.

10. 发明专利

JPH01226931A DEVICE FOR SHAPING SPIRAL RIB INSTALLED INSIDE TIP OF DRILL STEEL PIPE PILE AND METHOD OF SHAPING SPIRAL RIB USING SAME DEVICE 失效
公开(公告)号：JPH01226931A
公开(公告)日：1989-09-11
申请号：JP5071588
申请日：1988-03-04
申请人： KAWASAKI STEEL CO
发明人： TATENO JIRO
IPC分类号： E02D5/28 , B21C37/26 , E02D5/56
摘要： PURPOSE:To improve workability by turning a steel pipe and fast holding a rib not welded gradually at a spiral position by a preceding roller, using a roller holding a rib temporarily fixed into the steel pipe as a reference while welding the rib not welded by a torch. CONSTITUTION:Ribs 6 composed of previously spirally molded round bars or square bars are inserted into the tip section of a steep pipe 2, and only the opening end side being within reach is welded and fixed temporarily. The steel pipe 2 is loaded on a turning gear such as a turning roller. When the turning gear is inserted into the tip section of the steel pipe 2, a roller 4a holds the rib 6, and a pressure roller 7 is abutted against the internal surface of the steel pipe 2 between the ribs 6. When the steel pipe 2 is further rotated, a preceding roller 4a fast holds the rib 6 not welded at a specified spiral-pitch position, employing the roller 4a holding the temporarily fixed rib 6 as a reference while the rib 6 not welded is welded and treated by a torch 5.

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