WO2008023563A1 - Mandrel bar cleaning facility - Google Patents
Mandrel bar cleaning facility Download PDFInfo
- Publication number
- WO2008023563A1 WO2008023563A1 PCT/JP2007/065351 JP2007065351W WO2008023563A1 WO 2008023563 A1 WO2008023563 A1 WO 2008023563A1 JP 2007065351 W JP2007065351 W JP 2007065351W WO 2008023563 A1 WO2008023563 A1 WO 2008023563A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mandrel bar
- cleaning
- mandrel
- lubricant
- graphite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
- B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
- B21B25/04—Cooling or lubricating mandrels during operation
Definitions
- the present invention relates to a cleaning facility for a mandrel bar used in the manufacture of seamless pipes. Specifically, the present invention relates to a cleaning apparatus for mandrel bars that can suppress carburization that occurs on the inner surface of a pipe that is rolled and rolled without hindering operation.
- a lubricant is applied to the surface of the mandrel bar.
- this lubricant a graphite-based lubricant mixed with graphite having excellent wear resistance and seizure resistance is mainly used.
- the mandrel bar is transported to the mandrel mill while contacting the transport device on the transport line where the transport device composed of, for example, a transport roll is arranged. And is subjected to drawing and rolling.
- the mandrel bar when the mandrel bar is transported, it dries! /, Na! / And the lubricant drops and adheres to the transport device below the mandrel bar. Even when the lubricant is completely dry and transports the force, the lubricant film is dropped or peeled off due to vibrations during transport and adheres to the transport device. For this reason, the conveying device arranged in the mandrel bar conveying line is always contaminated by graphite contained in the adhered lubricant. In this way, since the transfer device arranged on the mandrel bar transfer line is contaminated by graphite, the mandrel bar transferred while contacting the transfer device is also contaminated by graphite.
- non-graphite lubricant As a measure for preventing carburization of the inner surface of the pipe, it is conceivable to apply a non-graphite lubricant to the surface of the mandrel bar.
- non-graphite lubricants are generally more expensive than graphite lubricants, it is economical to use non-graphite lubricants for the base pipe of any steel grade such as plain steel. It is difficult to carry out.
- the mandrel bar transport line that also uses black lead-based lubricant is shared when the low carbon steel pipe is drawn and rolled, and when the low carbon steel pipe is drawn and rolled, Measures are mainly taken to apply a non-graphite lubricant to the surface of the mandrel bar after cleaning the transfer device arranged on the mandrel bar transfer line (for example, Japanese Patent Laid-Open No. 2002-28705, Japanese Patent Laid-Open No. 2000). — See publication 24706).
- the graphite-based lubricant adhering to the surface of the mandrel bar needs to be cleaned in a relatively short time from the viewpoint of operation efficiency only by cleaning the mandrel lever on the transfer line. There is a risk that it will not be washed and remains when it is subjected to stretching and rolling. For this reason, when a graphite lubricant is applied and the mandrel bar after being subjected to drawing and rolling is extracted from the transport line, and then transported again to the transport line to apply a non-graphite lubricant, it is again applied to the transport line. Before carrying in, it is effective to clean (offline cleaning) the surface of the mandrel bar to which the graphite-based lubricant adheres in advance.
- Japanese Patent Application Laid-Open No. 2002-28705 discloses a graphite system adhering to a mandrel bar. Although it is described that the lubricant is washed off-line! /, The specific cleaning method is disclosed! / None disclosed!
- the present invention has been made to solve the problems of the prior art, and effectively suppresses carburization that occurs on the inner surface of the pipe during drawing and rolling without hindering operation.
- the problem is to provide a mandrel bar cleaning facility that can be used.
- the present invention that solves the above-mentioned problems is an equipment for cleaning a mandrel bar extracted from a mandrel bar transport line after being subjected to pipe rolling in a mandrel mill.
- a conveying device that conveys in the axial direction while rotating in the circumferential direction and a side of the mandrel bar that is conveyed by the conveying device are arranged opposite to each other, and the water pressure is 0.2 to the outer surface of the mandrel lever; 150 MPa
- the present invention provides a mandrel bar cleaning facility comprising a cleaning device for injecting high pressure water.
- the water pressure of the high-pressure water is 20 to 150 MPa.
- the mandrel bar cleaning facility of the present invention it is possible to remove the graphite-based lubricant adhering to the mandrel bar surface in a short time to such an extent that carburization of the inner surface of the pipe does not become a problem. Therefore, it is possible to share a mandrel conveyor line that also uses a graphite-based lubricant when extending and rolling a low-carbon steel base tube, and it can be applied to the inner surface of the tube at the time of extension rolling without hindering operation. Carburization that occurs can be effectively suppressed.
- FIG. 1 is an explanatory view schematically showing a seamless pipe production line in which a mandrel bar cleaning facility (offline cleaning facility) according to the present invention is arranged.
- FIG. 2 is an explanatory diagram showing a schematic configuration of an off-line cleaning facility according to the present invention.
- FIG. 3 is an explanatory view showing a schematic configuration of a conventional rubbing apparatus used for off-line cleaning.
- FIG. 4 is an explanatory view showing a schematic configuration of a transfer line cleaning apparatus.
- FIG. 5 is an explanatory view showing a schematic configuration of a mandrel bar cleaning device (online cleaning device),
- FIG. 5 (a) is a front view of the online cleaning device, and
- FIG. 5 (b) is an online It is explanatory drawing which shows arrangement
- the mandrel bar applied with graphite lubricant on the surface and subjected to stretching and rolling is extracted from the mandrel bar transport line (hereinafter referred to as “transport line” as appropriate), and the mandrel bar cleaning according to the present invention is performed.
- transport line mandrel bar transport line
- offline cleaning equipment where appropriate
- FIG. 1 is an explanatory view schematically showing a seamless pipe production line in which an off-line cleaning facility according to the present invention is arranged.
- the mandrel bar B is drawn after the drawing and rolling in the mandrel mill 8 is completed, conveyed on the return line 9, and cooled by the water cooling device 5. Thereafter, the mandrel bar B is cleaned by a mandrel bar cleaning device (hereinafter referred to as “online cleaning device”) 2 disposed in the transfer line, and then the surface of the mandrel bar B is again coated with the lubricant by the lubricant applying device 7. It is applied and used for stretching and rolling in the second and subsequent passes in the same process as described above.
- the mandrel bar B is subjected to the drawing and rolling in the mandrel mill 8 by using the circulation described above. By this circulation use, the transfer device (not shown) arranged in the transfer line of the mandrel lever B is contaminated with graphite contained in the graphite-based lubricant.
- the tube S 1 stretched and rolled in the mandrel mill 8 is reheated in a re-caloric heat furnace 13 at about 940 ° C to about 10 to 60 ° C for about 20 to 35 minutes. To produce seamless pipes.
- FIG. 2 is an explanatory diagram showing a schematic configuration of an off-line cleaning facility according to the present invention.
- the off-line cleaning equipment 15 is arranged to face the side of the mandrel bar B transported by the transport device that transports the mandrel bar B in the axial direction while rotating the mandrel bar B in the circumferential direction. And a cleaning device that injects high-pressure water toward the outer surface of the mandrel bar B.
- the transport device includes a transport roll 17 and a skew roll 18 that support the mandrel bar B.
- a transport roll 17 By rotating the transport roll 17, the mandrel bar B is transported in the axial direction, and by rotating the skew roll 18, the mandrel bar B rotates in the circumferential direction. Therefore, by rotating both the transport roll 17 and the skew roll 18, the mandrel bar B is transported in the axial direction while rotating in the circumferential direction.
- the cleaning device includes two cleaning nozzles Id arranged below the mandrel bar B.
- the cleaning nozzle Id By disposing the cleaning nozzle Id downward, it is possible to make the distance between the cleaning nozzle Id and the mandrel bar B surface constant regardless of the outer diameter of the mandrel bar B.
- the entire surface of the mandrel bar B can be cleaned by rotating the transport roll 17 and the skew roll 18 while spraying high pressure water 19 from the two cleaning nozzles Id toward the outer surface of the mandrel bar B. Is possible.
- the distance between the cleaning nozzle Id and the mandrel bar B surface is set to about several hundred mm, and the divergence angle of the high-pressure water 19 sprayed from the cleaning nozzle Id is set to 10 ° to 20 °.
- the water pressure of the high-pressure water sprayed from the cleaning nozzle Id is set to 0.2 to 150 MPa (preferably 20 to 15 OMPa). Hereinafter, this reason will be described.
- a washing test of mandrel bar B in which the graphite-based lubricant was sufficiently adhered to the surface was performed by appropriately changing the water pressure of the high-pressure water sprayed from the washing nozzle Id of the offline washing equipment 15.
- organic binders (vinyl acetate) to ensure lubricant adhesion and storage stability. Cleaning is performed both when a graphite lubricant with a relatively large amount (such as Nyria acrylic resin) is attached and when the amount of organic binder added is small! / And when a graphite lubricant is attached.
- a test was conducted. In general, the amount of organic binder added is large!
- the lubricant is difficult to wash because it shows water resistance, and the amount added is small! /, The lubricant is washed to show non-water resistance (water-soluble). It tends to be easy. Then, change the transport speed of mandrel bar B as appropriate (change the cleaning time per mandrel bar), and analyze the adhering material on the surface of mandrel bar B after cleaning. The carbon adhesion amount (g / m 2 ) remaining on the surface was determined. As usual, the surface of the mandrel bar B used in this cleaning test has an oxide film provided to prevent seizure, and the state of the oxide film after cleaning is confirmed by microscopic observation of the surface. did.
- Table 1 shows a part of the cleaning test results described above.
- the cleaning time and Both carbon deposits can be within acceptable limits (cleaning time: less than 10 minutes / tube, carbon deposits less than 30 g / m 2 ) Met. If a non-water-resistant lubricant with a small amount of organic binder is used, if the frequency of drawing and rolling the tube S with a mandrel mill 8 is high in a certain time (for example, drawing and rolling every 15 to 30 seconds), drawing and rolling The lubricant applied to the surface of the mandrel bar B flows down by the dripping of cooling water sprayed on the rolling roll until just before the start of the water or the water droplet falling from the rolling roll.
- the mandrel bar B and the raw tube S may be seized during the drawing and rolling. Therefore, it is not preferable to use a non-water-resistant lubricant for steel types and production lines 0 that are frequently drawn and rolled. preferable. For this reason, it is preferable to set the water pressure of the high-pressure water to 20 MPa or more as described above. However, for steel grades and production line 0, the frequency of stretching and rolling is low (for example, stretching every 60 seconds), even if a non-water-resistant lubricant is used, There is little risk of seizure of the raw tube S. For this reason, it is not always necessary to set the water pressure of the high-pressure water to 20 MPa or higher. It is only necessary to set it to 0.2 MPa or higher.
- the pressure of the high-pressure water sprayed from the cleaning nozzle Id is 0.2 to 150 MPa.
- mandrel bar B surface is cleaned by the off-line cleaning equipment 15 described above.
- a test was also conducted to compare the efficiency with the cleaning of the mandrel bar B surface by a scraping device using a conventional rotating brush.
- a water-resistant graphite-based lubricant with a large amount of organic binder added was adhered to the surface of the mandrel bar B before the test.
- FIG. 3 is an explanatory diagram showing a schematic configuration of a conventional scraping device used for off-line cleaning used in the test.
- the rubbing device 16 includes a transport roll 17 and a skew roll 18 that support the mandrel bar B, and a rotating brush 4 that is disposed so as to contact the mandrel bar B.
- the skew roll 18 is rotated to rotate the mandrel bar B in the circumferential direction
- the transport roll 17 is rotated to transport the mandrel bar B in the axial direction.
- the rotating brush 4 can be cleaned by rubbing the entire surface of the mandrel bar B.
- the surface of the mandrel bar B can be cleaned with a cleaning time (less than 10 minutes / bottle) that does not hinder the operation. It was possible to sufficiently reduce the residual graphite-based lubricant to the extent that carburizing of the inner surface of the tube S1 would not be a problem (carbon deposition amount of less than 30 g / m 2 ).
- the mandrel bar B cleaned by the off-line cleaning equipment 15 is transported to the transport line S again from the transport table 6, and is transported at least by the mandrel bar B before this transport. It is preferable to clean in advance the conveying device disposed between the lubricant application device 7 installed in the line and the entry side of the mandrel mill 8.
- FIG. 4 is an explanatory diagram showing a schematic configuration of the transport line cleaning device 1 used for cleaning the transport rolls constituting the transport device.
- the transport line cleaning device 1 includes two cleaning nozzles la and lb disposed at positions spaced several hundred mm above the surface of the transport roll 10. While rotating the transport roll 10, high-pressure water 11 is jetted from the cleaning nozzle la, lb toward the transport roll 10 By doing so, the transport roll 10 is cleaned.
- the divergence angle of the high-pressure water 11 injected from the washing nozzles la and lb is set to 10 ° to 20 °, and the water pressure of the high-pressure water 11 is set to 30 to 150 MPa.
- the mandrel bar B is transported again from the transport table 6 into the transport line.
- the loaded mandrel bar B is coated with a non-graphite lubricant on the surface by the lubricant application device 7.
- the mandrel bar B is inserted into the raw tube S made of low carbon steel in the middle of the transfer line to the entry side of the mandrel mill 8, and the raw tube S is drawn and rolled by the mandrel mill 8 and then the tube S. 1
- the mandrel bar B is pulled out after the drawing and rolling in the mandrel mill 8 is finished, conveyed on the return line 9 and cooled by the water cooling device 5. Thereafter, the mandrel bar B is cleaned by the on-line cleaning device 2 arranged in the transfer line.
- FIG. 5 is an explanatory diagram showing a schematic configuration of the online cleaning device 2.
- FIG. 5 (a) is a front view of the online cleaning device 2, and
- the on-line cleaning device 2 is disposed on the upstream side of the lubricant applying device 7 and cleans the mandrel bar B that has been stretch-rolled.
- the online cleaning device 2 includes a total of eight cleaning nozzles lc arranged in an annular shape so that the distance from the mandrel bar B is several hundred mm at the maximum.
- the surface of the mandrel bar B is cleaned by spraying high-pressure water 12 from each cleaning nozzle lc toward the mandrel bar B.
- the divergence angle of the high-pressure water 11 injected from the cleaning nozzle lc is set to 10 ° to 20 °, and the water pressure of the high-pressure water 12 is set to 30 to 150 MPa.
- the surface of the mandrel bar B is again coated with the non-graphite-based lubricant by the lubricant coating device 7, and the same process as described above is performed. It is used for drawing and rolling of raw pipe S made of low-carbon steel after the second pass.
- Table 3 shows the carburization status of the inner surface of the seamless pipe made of the low-carbon steel manufactured by the process described above, and the low-carbon steel manufactured without the offline cleaning of the mandrel bar B by the offline cleaning equipment 15
- the results of an evaluation of the carburization situation on the inner surface of a powerful seamless pipe are shown.
- conditions 1 and 3 are the second pass with mandrel mill 8.
- Samples for analysis were cut out from the inner surface of the seamless pipe drawn and rolled to the inner surface of the seamless pipe drawn and rolled in the first pass (and therefore no online cleaning) for conditions 2 and 4, respectively.
- the carbon concentration was measured by (emission spectroscopic analysis).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07792024.7A EP2055399B1 (en) | 2006-08-22 | 2007-08-06 | Mandrel bar cleaning facility |
| BRPI0719897-3A BRPI0719897B1 (pt) | 2006-08-22 | 2007-08-06 | Instrumento para a limpeza de barra de mandril |
| US12/377,315 US20100269868A1 (en) | 2006-08-22 | 2007-08-06 | Mandrel bar cleaning facility |
| CN2007800314026A CN101505886B (zh) | 2006-08-22 | 2007-08-06 | 芯棒清洗设备 |
| US13/735,693 US20130118527A1 (en) | 2006-08-22 | 2013-01-07 | Mandrel bar cleaning facility |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-224812 | 2006-08-22 | ||
| JP2006224812A JP4766390B2 (ja) | 2006-08-22 | 2006-08-22 | マンドレルバー洗浄設備 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/735,693 Division US20130118527A1 (en) | 2006-08-22 | 2013-01-07 | Mandrel bar cleaning facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008023563A1 true WO2008023563A1 (en) | 2008-02-28 |
Family
ID=39106650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/065351 Ceased WO2008023563A1 (en) | 2006-08-22 | 2007-08-06 | Mandrel bar cleaning facility |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US20100269868A1 (ja) |
| EP (1) | EP2055399B1 (ja) |
| JP (1) | JP4766390B2 (ja) |
| CN (1) | CN101505886B (ja) |
| BR (1) | BRPI0719897B1 (ja) |
| WO (1) | WO2008023563A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103380197A (zh) * | 2011-02-09 | 2013-10-30 | Sk新技术株式会社 | 通过加氢处理反应使用催化剂同时除去烃类材料中的硫和汞的方法 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009053166B4 (de) * | 2009-11-02 | 2015-02-19 | V & M Deutschland Gmbh | Verfahren und Einrichtung zum optimierten Stangenumlauf bei der Herstellung eines nahtlos warmgefertigten Stahlrohres nach dem Rohrkontiverfahren |
| CN102212834A (zh) * | 2010-04-08 | 2011-10-12 | 新疆新能天宁电工绝缘材料有限公司 | 一种不锈钢芯棒清洗装置 |
| CN101791628B (zh) * | 2010-04-09 | 2011-12-07 | 太原重工股份有限公司 | 一种热轧穿孔机组的冷却槽装置 |
| CN102847930A (zh) * | 2012-04-18 | 2013-01-02 | 河南省金太阳铸造有限公司 | 一种铸件清砂机的传动机构 |
| CN103894360B (zh) * | 2014-03-07 | 2016-09-28 | 中国石油化工股份有限公司 | 钻杆自动清洗装置 |
| DE102015212905B4 (de) * | 2015-07-09 | 2020-10-01 | Sms Group Gmbh | Vorrichtung und Verfahren zur Herstellung nahtloser Rohre |
| CN106925542B (zh) * | 2015-12-31 | 2023-08-29 | 中核建中核燃料元件有限公司 | 一种燃料棒包壳管管口自动喷擦装置 |
| IT201600103534A1 (it) * | 2016-10-14 | 2018-04-14 | Danieli Off Mecc | Laminatoio multigabbia per un impianto di laminazione con laminatoio finitore di tipo obliquo o pellegrino a caldo o plug mill |
| CN109201754B (zh) * | 2018-09-01 | 2024-03-22 | 江苏宏宝优特管业制造有限公司 | 一种钢管外壁润滑设备及润滑方法 |
| CN115228825B (zh) * | 2022-09-26 | 2023-01-24 | 辛集市澳森钢铁集团有限公司 | 一种用于盘条运输的余热回收装置 |
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2006
- 2006-08-22 JP JP2006224812A patent/JP4766390B2/ja active Active
-
2007
- 2007-08-06 CN CN2007800314026A patent/CN101505886B/zh active Active
- 2007-08-06 WO PCT/JP2007/065351 patent/WO2008023563A1/ja not_active Ceased
- 2007-08-06 BR BRPI0719897-3A patent/BRPI0719897B1/pt active IP Right Grant
- 2007-08-06 EP EP07792024.7A patent/EP2055399B1/en active Active
- 2007-08-06 US US12/377,315 patent/US20100269868A1/en not_active Abandoned
-
2013
- 2013-01-07 US US13/735,693 patent/US20130118527A1/en not_active Abandoned
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| JPH0724425A (ja) * | 1993-07-14 | 1995-01-27 | Bando Chem Ind Ltd | ローラー洗浄装置 |
| JPH09155304A (ja) * | 1995-12-05 | 1997-06-17 | Mitsubishi Chem Corp | 円筒状ワークの洗浄装置 |
| JPH10128412A (ja) * | 1996-10-25 | 1998-05-19 | Sumitomo Metal Ind Ltd | 黒皮被覆13Cr系ステンレス継目無鋼管の製造方法 |
| JP2000024706A (ja) | 1998-07-14 | 2000-01-25 | Sumitomo Metal Ind Ltd | 継目無鋼管の製造方法および耐食性に優れた継目無合金鋼鋼管 |
| JP2002028705A (ja) | 2000-07-14 | 2002-01-29 | Sumitomo Metal Ind Ltd | マンドレルミルによる圧延方法および圧延設備 |
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| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103380197A (zh) * | 2011-02-09 | 2013-10-30 | Sk新技术株式会社 | 通过加氢处理反应使用催化剂同时除去烃类材料中的硫和汞的方法 |
| CN103380197B (zh) * | 2011-02-09 | 2015-04-01 | Sk新技术株式会社 | 通过加氢处理反应使用催化剂同时除去烃类材料中的硫和汞的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2055399A4 (en) | 2012-12-26 |
| CN101505886B (zh) | 2013-10-09 |
| JP2008049345A (ja) | 2008-03-06 |
| JP4766390B2 (ja) | 2011-09-07 |
| CN101505886A (zh) | 2009-08-12 |
| US20130118527A1 (en) | 2013-05-16 |
| BRPI0719897B1 (pt) | 2020-09-15 |
| US20100269868A1 (en) | 2010-10-28 |
| EP2055399B1 (en) | 2013-12-18 |
| EP2055399A1 (en) | 2009-05-06 |
| BRPI0719897A2 (pt) | 2014-05-06 |
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