专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH06335723A PASSING METHOD FOR TIP PART OF STRIP METAL TO METALLIC WELDED TUBE MANUFACTURING DIE 失效
公开(公告)号：JPH06335723A
公开(公告)日：1994-12-06
申请号：JP14680593
申请日：1993-05-27
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , NAKAKO TAKEFUMI
IPC分类号： B21C37/08 , B21D5/06 , B21D5/10
摘要： PURPOSE:To easily pass the tip part of a strip metal into a die without carrying out any complicated processing by press-forming the tip of the flat strip metal into a shape having a diameter smaller than the minimum diameter of a die and by clamping and pulling the tip part perforated into the through hole of the die from this pree-molded part. CONSTITUTION:The tip of a flat strip metal 1 is press molded in sequence with a press jig, the strip metal 1 is inserted into the throughhole 3 of the die 2 and perforated and the perforated tip part is clamped and pulled by a pulling device. Then, the cross section of the strip metal 1 is totally equal in the formed part and the unformed part and the strength is not reduced, therefore, though the tip part of the strip metal 1 is inserted and perforated into the throughhole 3, pulled forcedly and passed through, the die is not broken. Further, a high grade technology is not required for sequential press-forming to the tip part of the strip metal 1 and the same shape can be press-molded by any worker, Consequently, even unskilled workers can pass the strip metal through the die quickly and surely.

2. 发明专利

JPH0688103A PRODUCTION OF ALLOY POWDER 失效
公开(公告)号：JPH0688103A
公开(公告)日：1994-03-29
申请号：JP26530092
申请日：1992-09-07
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , TANAKA YASUSHI , NAKAMURA HIROSHIGE
IPC分类号： B22F1/00 , B22F9/04
摘要： PURPOSE:To produce the alloy powder which contains impurities at a lower ratio and has the compsn. nearly same as the target compsn. by extremely short time of mechanical ironing. CONSTITUTION:A base plate 13 is supported freely rotatably on a revolving shaft 14 via bearings and plural kinds of alloy raw material powders 10 are charged together with hard balls 11 into the container 12 provided on this base plate 13. The hard balls with projections are made to coexist at preferably 5 to 20% ratio in the hard balls 11. The container 12 is vibrated at a high speed at the amplitude proportional to the angle of inclination of the revolving shaft 14 and the distance from the revolving shaft 14 by rotating the revolving shaft 14. The mixing and agitating of the alloy raw material powders are accelerated by the coexisting hard balls with the projections. The alloy raw material powders sticking to the inside walls and specific points of the container 12 are simultaneously scrapped off. Consequently, the alloy raw material powders 10 are efficiently made into the alloy powder.

3. 发明专利

JPH08243637A MANUFACTURE OF METALLIC WELDED TUBE 失效
公开(公告)号：JPH08243637A
公开(公告)日：1996-09-24
申请号：JP7236895
申请日：1995-03-06
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , INOUE SHOJI
IPC分类号： B21C37/08 , B21C9/00 , B21C43/00 , B21D5/10
摘要： PURPOSE: To manufacture a welded tube of excellent quality free from surface flaws or defective welds by the die draw forming method. CONSTITUTION: In manufacturing a welded tube 1c by forming a metallic strip 1 to be cylindrical by a forming die 20 having a through hole to achieve the contraction from the inlet side toward the outlet side, and welding an edge part on each side, the water-soluble lubricant 16 of 15-30vol.% in concentration is applied to the overall surface of a metal strip 1 which is on the outer side of the welded tube 1c by a lubricant applying equipment 10 arranged on the inlet side of the forming die 20, and the water-soluble solution adhered to the cylindrical metal strip 1 immediately after leaving the forming die 20 is removed by a wiping equipment 30. The surface of the cylindrical metallic strip 1 is heated and dried by a heating machine 35 after the water-soluble lubricant is wiped. Because the water-soluble lubricant 16 is not brought into the welded zone, the weld zone free from defects such as blowholes attributable to the gasification of water contents.

4. 发明专利

JPH05331576A TI-AL-BASE LIGHTWEIGHT HEAT RESISTANT ALLOY EXCELLENT IN OXIDATION RESISTANCE 失效
公开(公告)号：JPH05331576A
公开(公告)日：1993-12-14
申请号：JP16008992
申请日：1992-05-28
申请人： NISSHIN STEEL CO LTD
发明人： TANAKA YASUSHI , ERIGUCHI TORU , NAKAMURA HIROSHIGE
IPC分类号： C22C14/00 , F01D5/28
摘要： PURPOSE:To obtain a Ti-Al-base lightweight heat resistant alloy excellent in oxidation resistance at high temp. by specifying a composition consisting of Al, Ta, and Ti. CONSTITUTION:This alloy is a Ti-Al-base lightweight heat resistant alloy which has a composition consisting of, by mass, 30-40% Al, 0.5-3.0% Ta, and the balance Ti with inevitable impurities and further containing, if necessary, 0.5-3.0% Nb. In this alloy, oxidation resistance at a temp. as high as >= about 1070K is improved by inhibiting the formation of Ti3Al intermetallic compound in a Ti-Al intermetallic compound matrix and also adding Ta or combinedly adding Ta and Nb. Moreover, by regulating the addition quantities of these Ta and Nb to small values, the cost and specific gravity of the resulting heat resistant alloy can be reduced.

5. 发明专利

JPH06218428A MANUFACTURE OF METALLIC WELDED TUBE 失效
公开(公告)号：JPH06218428A
公开(公告)日：1994-08-09
申请号：JP2602793
申请日：1993-01-22
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , SHIMADA YOSHIAKI
IPC分类号： B21C9/00 , B21C37/08 , B21C43/00 , B24B9/00
摘要： PURPOSE:To prevent a blow hole from occurring in a weld bead by removing lubricant attached to the end faces of both side edges of a strip metal through rotary bodies after the whole lower surface of the strip metal is coated by coating rolls with the lubricant in front of a die. CONSTITUTION:The whole lower surface (the surface coming in contact with the die 4) of the strip metal 1 is coated by the coating rolls with the lubricant 2. Then, the lubricant 2 attached to the end faces of both side edges 1a of the strip metal 1 is removed continuously by the rotary bodies 5a. The strip metal 1 is penetrated through the die 4 provided with a taper 4a and molded by butting both side edges 1a against each other from the flat shape to the tubular shape. This butt part 1b is welded by a welding torch to make a metallic welded tube. Since the lubricant can be prevented from melting into the welded bead, a metallic welded tube having a good weld part free from the blow hole in the weld bead can be manufactured.

6. 发明专利

JPH06126327A METAL WELDED TUBE 失效
公开(公告)号：JPH06126327A
公开(公告)日：1994-05-10
申请号：JP30594892
申请日：1992-10-21
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU
IPC分类号： B21C37/08 , B21C37/083 , B21D5/10
摘要： PURPOSE:To eliminate a seam guide roll and to attain shortening of a production line by controlling the position of both side edges of a metallic belt processed for bending, making it pierce through a die and welding the abutting part of both side edges immediately with a welding torch. CONSTITUTION:The metallic belt 1 is applied with a lubricant on the surface that comes into contact with the die by a lubricant applicator 2 and subjected to a bending process from both side edges 1a to the part of a prescribed width by an edge bend roll 3. Next, by a guide mechanism 11, both side edges 1a are controlled for positions. Then, immediately, by the die 4 having a taper 4a in which the diameter becomes smaller from the entrance side to the exit, the belt is formed into a tube with both side edges abutted. Then, the abutting part 1b is butt-welded immediately by a squeezing roll 6 and welding torch 6, and a metallic welded tube 8 is obtained. Thus, the yield of product is improved.

7. 发明专利

JPH08267150A PRODUCTION OF METALLIC WELDED TUBE 失效
公开(公告)号：JPH08267150A
公开(公告)日：1996-10-15
申请号：JP9602595
申请日：1995-03-29
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , NAKAKO TAKEFUMI
IPC分类号： B21C37/08 , B21D5/10
摘要： PURPOSE: To prevent the occurrence of flaws on surface and to produce a welded tube with high quality by a Die-draulic forming method. CONSTITUTION: A forming die 20 formed with a through-hole 22 whose diameter is made smaller from the inlet side toward the outlet side by 20 to 30 deg. taper angel is used, a plate-shaped metallic strip 1 is passed through the through-hole 22 and formed in a cylindrical shape that both end parts of the width direction are abutted on each other, then both end parts of the width direction are subjected to but welding to produce a welded tube 1c. Since the taper angle is regulated to 20 to 30 deg., the drawing force applied on a forming die 20 during forming is decreased and the occurrence of flaws on the surface of the forming die and the metallic strip 1 can be suppressed.

8. 发明专利

JPH08267127A PRODUCTION OF METALLIC WELDED PIPE 失效
公开(公告)号：JPH08267127A
公开(公告)日：1996-10-15
申请号：JP9433195
申请日：1995-03-28
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , NAKAKO TAKEFUMI , INOUE SHOJI
IPC分类号： B21C37/08 , B21C3/02 , B21D5/10
摘要： PURPOSE: To prevent the occurrence of an edge wave, and to manufacture a welded pipe by the die draw forming method under a stable condition. CONSTITUTION: By using a forming die 20 in which a through-hole 21 whose diameter becomes small with a taper angle 3.48 to 10.48 deg. toward an outlet side from an inlet side and with whole length 3.52 to 8.95 times the plate width of a strip metal 1, is formed, after forming in a cylindrical shape manufactured by butting both tip parts in the width direction, passing through a tabular strip metal 1 into the through-hole 21, butt welding is performed to both tip parts in the width direction. For the forming die 20, the one made of MC nylon is preferable, and for the through-hole 21, it is preferable that a diameter on the outlet side is 1.08 to 1.40 times the outside diameter of a target product. By adjusting the taper angle and the whole length of the through-hole, the occurrence of an edge wave is prevented, and a pipe manufacturing operation is made stable for a long term.

9. 发明专利

JPH0739932A MANUFACTURE OF METALLIC WELDED TUBE 失效
公开(公告)号：JPH0739932A
公开(公告)日：1995-02-10
申请号：JP20202093
申请日：1993-07-23
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU
IPC分类号： B21C9/00 , B21C37/08 , B21D5/10
摘要： PURPOSE:To manufacture a metallic welded tube having a good weld zone by applying a lubricant whose specific gravity is made constant by replenishing a solvent on the underside of a metallic strip before forming, forming with a die and welding it. CONSTITUTION:The lubricant 2 is applied on the metallic strip 1 which is delivered from an uncoiler with an applying roller 3. After forming into a tubular shape by passing the metallic strip 1 through the die 4 having a tapered through hole 5 of a circular section, the welded metallic tube is manufactured by welding the butted part with a welding torch 8. At that time, the lubricant 2 whose specific gravity is made constant by continuously or intermittently replenishing the solvent is applied on the whole of the underside of the metallic strip 1 before forming with the die 4. The specific gravity of the lubricant 2 is measured with a standard specific gravity meter 11 in a specific gravity measuring part 10 and the solvent is replenished from a solvent supplying port 12. In this way, the occurrence of weld defects such as a blow hole in the interior of a weld bead is prevented.

10. 发明专利

JPH0732036A MANUFACTURE OF METALLIC WELDED TUBE 失效
公开(公告)号：JPH0732036A
公开(公告)日：1995-02-03
申请号：JP19761793
申请日：1993-07-16
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , SHIMADA YOSHIAKI
IPC分类号： B21C37/08
摘要： PURPOSE:To prevent burning and the shortening of the life of a die by heating a metallic strip in a heating furnace in front of a die, after a lubricant is applied on the entire lower surface of the strip with an applicator roll, and continuously drying the lubricating oil stuck to the strip. CONSTITUTION:A planar metallic strip 1 is formed at a stroke into a tubular shape with both side edges abutted on each other by putting the strip 1 through a die 4 in which a through-hole is formed and provided with a round cross section and a tapered part 4a on the entrance side with the diameter gradually made smaller from the entrance side to the exit side. Then, this abutted part is welded with a welding torch 8 to produce a metallic welded tube. At that time, the metallic strip 1 is applied with a lubricant 2 on the entire lower surface by an applicator roll 3 in front of the die 4 so that the friction at the contact surface of the metallic strip 1 with the die 4 is reduced when the die 4 is put through and that flaws for example are not generated on the surface of the strip 1; and this applied lubricant 2 is continuously dried in a heating furnace 5 that is provided in farther front of the die 4.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式