WO2006106961A1 - 継目無管の製造方法 - Google Patents
継目無管の製造方法 Download PDFInfo
- Publication number
- WO2006106961A1 WO2006106961A1 PCT/JP2006/306928 JP2006306928W WO2006106961A1 WO 2006106961 A1 WO2006106961 A1 WO 2006106961A1 JP 2006306928 W JP2006306928 W JP 2006306928W WO 2006106961 A1 WO2006106961 A1 WO 2006106961A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- liquid
- mandrel bar
- rolling
- lubricant
- Prior art date
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Classifications
-
- 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
-
- 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
Definitions
- the present invention relates to a method for producing a seamless pipe by a Mannesmann mandrel mill method, and in particular, when a hollow shell made of a high alloy steel such as stainless steel or 13Cr steel is drawn and rolled,
- the present invention relates to a method of manufacturing a seamless pipe which prevents seizure between a mandrel bar and a holo shell and effectively suppresses the generation of wrinkles on the inner surface of the pipe.
- Seamless pipes are used in many industrial fields such as energy, automobiles, chemicals, industrial machinery, and construction.
- seamless pipes are widely used for the transfer of oil well pipes, crude oil and gas, and play an important role in the fields related to energy resource development around the world.
- Mannesmann Mandrel mill production of seamless pipes is performed, for example, through the process shown in FIG.
- billet 1 which is a seamless pipe material
- the billet 1 heated in the rotary hearth type heating furnace 2 is extracted from the inside of the furnace and then pierced and rolled by a piercer (piercing and rolling mill) 3 to become a hollow shell 4.
- a mandrel bar 5a is inserted into the hollow shell 4 from the rear end side, and is drawn and rolled by the mandrel mill 5 to form a raw tube 4a. Thereafter, the mandrel bar 5a is pulled out from the raw tube 4a.
- the mandrel bar 5a is usually inserted into the hollow shell 4 at 1100 to 1200 ° C, Since it is exposed to seizure, a lubricant is applied to the outer surface.
- the applied lubricant acts as a protective film that prevents fusion between the mandrel bar 5a and the hollow shell 4 due to seizure.
- a hot rolling lubricant having excellent hot lubrication performance is used.
- water-soluble graphite-based lubricants containing graphite as a main component are frequently used because they are inexpensive and have excellent lubricating performance.
- This lubricant is usually supplied to the storage tank force production line and immediately before the mandrel bar 5a is inserted into the hollow shell 4. From the ring-shaped nozzle arranged at the position, it is sprayed in a shower shape toward the surface of the mandrel bar 5a passing through the nozzle. In this way, a predetermined total amount of lubricant determined empirically is applied to the surface of the mandrel bar 5a.
- the outer diameter shape and thickness of the raw tube drawn and rolled by the mandrel mill are affected by the roll rotation speed and roll hole shape of each stand, and between the mandrel bar 5a and the holo shell 4 It is also affected by changes in the coefficient of friction. That is, by using a lubricant that reduces the coefficient of friction with the hollow shell 4 as a lubricant to be applied to the mandrel bar 5a, the hollow shell 4 is stretched in the circumferential direction and the longitudinal direction during stretch rolling. An elementary tube having a stable outer diameter shape and a wall thickness distribution can be obtained evenly deformed.
- the mandrel bar 5a After stretching and rolling, the mandrel bar 5a is pulled out from the raw tube 4a using a burst slipper. However, at this time, when the lubricity of the lubricant applied to the outer surface of the mandrel bar 5a is poor, the raw tube 4a and the mandrel bar 5a are seized and internal flaws are generated. Or, mandrel bar 5a cannot be pulled out.
- Stainless steels such as SUS304, 316, 347, 410, and 430, or alloy steels such as STBA25 and 26, which are specified in JIS, differ from ordinary steels such as carbon steel. Is difficult to generate. In addition, these steels have mechanical properties such as high strength and toughness, so the tools used are also suitable: Co-Mo series such as feJIS-SKD61 and low heat resistant alloys such as Cr Mo-V series. It is necessary to use the tool. The tool itself made of such a material is difficult to generate an acid scale. Accordingly, the rolling load and the friction coefficient during processing increase, and the mandrel bar 5a and the hollow shell 4 are easily seized. This causes frequent surface flaws.
- Stainless steel or alloy steel pipe products are required to have a high degree of surface properties. If such surface defects occur, even if they are mild, they cannot be shipped as products. After the surface polishing and the like, a finishing process is required. If deep flaws occur on the tube surface, the tube becomes defective. Therefore, in the manufacture of seamless pipes by the Mannesmann mandrel mill method, the properties of the lubricant applied to the surface of the mandrel bar 5a Performance has a significant impact not only on product quality, but also on productivity.
- the mandrel bar is inserted into a hollow shell at 1100 to 1200 ° C and then subjected to a drawing and rolling process, so that the temperature becomes 100 to 400 ° C immediately after the drawing and rolling. Therefore, the mandrel bar is cooled and reapplied with a powerful lubricant before it is subjected to the next hollow shell drawing and rolling.
- Patent Document 1 discloses a first liquid containing graphite powder and a water-soluble resin having reaction curability, and a first liquid containing boric acid and the like. There is disclosed a technique for preventing seizure by chemically reacting two liquids composed of two liquids and interposing a solidified lubricant film between the holo shell and the mandrel bar.
- Patent Document 2 discloses a one-pack type lubricant that replaces the water-soluble resin of the first liquid of Patent Document 1 with a polymer, and further includes My power.
- Patent Document 3 discloses a technique of applying the same lubricant a plurality of times to secure a lubricant film having a predetermined thickness and preventing seizure.
- Patent Document 1 Japanese Patent Laid-Open No. 63-230797
- Patent Document 2 JP-A-8-165489
- Patent Document 3 Japanese Patent Application Laid-Open No. 2004-34072
- the mandrel bar pulled out from the raw tube is sent to the bar cooling zone, cooled to an appropriate temperature, and then subjected to the next holon shell stretching and rolling, so-called circulation use is performed.
- the cooling zone there are air cooling and water cooling that can be used in the field, and water cooling with a short cooling time is used when there is not enough space to wait for many mandrel bars for air cooling. Is done.
- the mandrel bar is subjected to the subsequent rolling of the next holo shell within a short time after water cooling.
- the surface of the surface of the front hollow shell is generally finished immediately after the end-rolling (before water cooling) and after the water cooling. Two can be considered, which are completely evaporated and immediately before the next holo shell is stretch-rolled.
- the mandrel bar to which the lubricant should be applied is 100 to 400.
- the lubricant is required to have heat resistance and water resistance in addition to seizure resistance because it is a high temperature of ° C and water cooling is performed in the next process.
- a lubricant film having sufficient seizure resistance is formed within a short time after applying the lubricant in order to increase production efficiency. It is necessary to That is, the lubricant must be quick-drying.
- the lubricant disclosed in Patent Document 1 is a water-resistant and high-temperature resistant material, it is better than applying it after rolling with water and before rolling. A sufficient dry film cannot be formed over the entire thickness, and good seizure resistance cannot be obtained. On the other hand, since it takes a long time to obtain a seizure-resistant lubricating film by sufficient drying, there is a problem in that the rolling operation time is lengthened and the working efficiency is lowered.
- the lubricant disclosed in Patent Document 2 is basically assumed to be used at room temperature and is not considered in terms of water resistance, so it must be used after water cooling. Since quick-drying is not considered, it has the same problem as the lubricant disclosed in Patent Document 1.
- Patent Document 3 does not refer to heat resistance, water resistance, and quick-drying after water cooling required for a lubricant to be applied before water cooling. There is no specific suggestion of how to use one when it is water cooled.
- the present invention forms a lubricating film having excellent seizure resistance performance on the surface of the mandrel bar while ensuring sufficient productivity.
- Material force to be produced An object of the present invention is to provide a method for producing a seamless pipe which is less likely to cause flaws on the pipe surface even if it is S stainless steel or high alloy steel.
- first liquid The lubricant to be applied before water cooling (hereinafter referred to as “first liquid”) requires heat resistance to a high temperature of about 400 ° C and water resistance that will not be washed away in the next water cooling process. is there.
- the formed film tends to be porous due to high temperature, and the adhesion to the mandrel bar surface is poor. Therefore, the seizure resistance is insufficient if this is maintained. This is especially true for stainless steel and high alloy workers.
- the film may be partially peeled in contact with surrounding members before the drawing and rolling process.
- a lubricant having a relatively low viscosity (hereinafter referred to as “second liquid”) is also applied to the first liquid after water cooling, it penetrates into the porous film.
- the lubricant film can be made into a dense film.
- the second liquid can reinforce the seizure resistance by adding a component that imparts seizure resistance.
- the adhesion between the lubricating film and the mandrel bar can be improved, and the seizure resistance can be improved.
- the lubricating film can be supplemented to the part where the partial peeling has occurred.
- the second liquid Since there is no water cooling process after the application of the second liquid, the second liquid is not required to have water resistance.
- the invention described in claim 1 includes the first application step of forming a water-resistant film by applying the first liquid to the surface of the mandrel bar immediately after the end of the previous drawing and rolling, and the first application step.
- It includes a second coating process for imparting adhesion and a stretching and rolling process, and the stretching and rolling process is to start stretching and rolling the holo-shell using a mandrel bar within 10 seconds after the second coating process. This is a method for producing a seamless pipe.
- a high-temperature mandrel bar immediately after the end of stretching and rolling refers to a high-temperature core that is inserted into a hollow shell at 1100 to 1200 ° C and drawn out from the blank immediately after the end of stretching and rolling. This is the temperature of 100 to 400 ° C.
- the "Waterproof” means normal, even under a spray of water, that remains in the majority (50 wt 0/0) Mandoreruba one surface without lost. Details of the specific evaluation method will be described later.
- “high temperature adhesion” means that even when a mandrel bar provided with a lubricant film is inserted into a hollow shell of 1100 to 1200 ° C, the lubricant film is easily contacted with the holo shell. This means that the mandrelba surface force will not drop. Specifically, this evaluation is judged by whether or not seizure occurs between the inner surface of the mandrel bar and the hollow shell.
- the invention according to claim 2 is the method for producing a seamless pipe according to claim 1, wherein the first liquid is a solid lubricant of 20 to 40% by mass, water dispersibility Fat containing 10-30% by mass, using aqueous solution or aqueous dispersion, second liquid is 5-30% by mass of amine borate, potassium borate, potassium molybdate or sodium, potassium carbonate or sodium, solid lubricant An aqueous solution containing 0 to 30% by mass of an agent or an aqueous dispersion
- the invention described in claim 3 is characterized in that, in the method for producing a seamless pipe according to claim 2, the solid lubricant is graphite, mica, or a mixture thereof. Let's say.
- the invention described in claim 4 is the method for producing a seamless pipe according to any one of claims 1 to 3, wherein the first application step is performed at a mandrel bar temperature of 100.
- the second coating process is performed at a mandrel temperature of 60 to 150 ° C at ⁇ 400 ° C.
- the invention described in claim 5 is the method for producing a seamless pipe according to any one of claims 1 to 4 in claim 1. Is an alloy steel containing 5 mass% or more of Cr, or stainless steel.
- a lubricating film having excellent seizure resistance performance is formed on the surface of the mandrel bar while maintaining sufficient productivity even when the mandrel bar includes a step of water cooling. Even if it is made of S material stainless steel or high alloy steel, It is possible to provide a method of manufacturing a seamless pipe that is less likely to generate
- FIG. 1 is a diagram showing a cycle of a mandrel bar.
- FIG. 2 is a diagram showing a seizure resistance evaluation tester.
- FIG. 3 is a diagram schematically showing a production process of a seamless pipe.
- FIG. 1 (A) is a diagram showing an operation cycle of a mandrel bar in a method of manufacturing a seamless pipe that is effective in one embodiment of the present invention.
- a diagram showing the operation cycle of a conventional mandrel bar is shown in Fig. 1 (B) for comparison.
- Fig. 1 (A) the mandrel bar subjected to the drawing and rolling by the mandrel mill is also drawn out of the raw pipe force, and the first liquid is applied in a state of a high temperature of 100 to 400 ° C (retarded). Lubrication). A water-cooled shower is applied, and the mandrel has dropped to 60-150 ° C. The second liquid is applied to the Luba surface (inserter lubrication). Thereafter, the mandrel bar coated with the second liquid is again subjected to drawing and rolling in a mandrel mill. The time until the next drawing and rolling is started after the second liquid application is within 10 seconds.
- a lubrication booth as shown in Fig. 1 (B) is not required, and after inserter lubrication. Since the next drawing and rolling can be started immediately, the production efficiency can be increased.
- the substance used as the base is a solid lubricant such as graphite, mica, or a mixture thereof.
- the upper limit of the content of the solid lubricant with respect to the entire lubricant is 40% by mass, preferably 35% by mass. If the solid lubricant content is too high, spray coating becomes difficult. In addition, it becomes difficult to supply the storage tank force of the lubricant to the production line, and the nozzle force cannot be sprayed toward the surface of the mandrel bar.
- the lower limit of the content of the solid lubricant with respect to the entire lubricant is 20% by mass, preferably 25% by mass. If the content of the solid lubricant is too small, the seizure prevention performance is lowered, and there is a possibility that many scratches are generated particularly when a hollow shell made of stainless steel or high alloy steel is drawn and rolled.
- the graphite may be a natural product or a synthetic product. Further, it is preferable to use graphite having a purity of 81% or more and an average particle size of 40 ⁇ m or less. This is because inorganic substances such as alumina (Al 2 O 3) and silica (SiO 2) that exist as contaminants with a purity of less than 81% It is because the lubricity may be hindered by impurities mainly composed of objects. In addition, when the average particle size force is 0 ⁇ m or more, it is not properly dispersed in the first liquid, and cannot be stored in a state where it is smoothly supplied and stably dispersed on the mandrel and holo-shell surfaces during use. It is.
- either natural mica or synthetic mica can be used.
- natural mica include sericite, muscovite, and phlogopite.
- synthetic mica include potassium tetrasilicon mica, sodium tetrasilicon mica, and fluorine phlogopite.
- Mica is included in order to improve lubricity under high temperature conditions around 100 ° C. Mica increases the lubrication effect between the mandrel bar and the holo shell, and graphite reduces the coefficient of friction, while mica reduces the mandrel bar and holo shell. It has the function of preventing separation and fusing and preventing the occurrence of internal flaws.
- mica having an average particle size force of 0 m or less and a purity of 81% or more. This is because when the average particle size exceeds 40 m, it cannot be properly dispersed and is smoothly supplied to the lubricating surface. Also, if the purity is less than 81%, it is present as a contaminant.
- the lubrication is caused by impurities mainly composed of inorganic substances such as alumina (Al 2 O 3) and silica (SiO 2).
- the water-dispersible resin blended in the first liquid is a stable solid dispersion of the base solid lubricant in water, which can be easily supplied at the time of use, on the mandrel bar and holo shell surfaces. On the other hand, it is contained in order to spread uniformly and to provide auxiliary lubricity.
- Examples of the water-dispersible resin blended in the first liquid include an acetic acid polymer, an acrylic acid ester polymer, a methacrylic acid ester polymer, a copolymer of two or more of these, and ethylene.
- a vinyl acetate copolymer etc. are mentioned.
- the upper limit of the content of the water-dispersible resin with respect to the entire lubricant is 30% by mass, preferably 25% by mass.
- the lower limit of the water-dispersible resin is 10% by mass, preferably 15% by mass. If the content is too small, the adhesion and water resistance will be poor and will peel off.
- the water resistance is not impaired, for example, within 3% by mass or less.
- a polymer may be blended.
- the water-soluble polymer include methyl cellulose, carboxymethyl cellulose, and polysaccharides such as polysaccharides and alginates.
- Water is contained in order to uniformly apply the lubricant to the surface of the mandrel bar. If the content is less than 30% by mass, the viscosity of the lubricant becomes too high and handling becomes difficult. On the other hand, if the content exceeds 70% by mass, the bumping phenomenon will occur vigorously and a uniform film will not be obtained, and the adhesion will be poor, and it will not be possible to obtain a predetermined adhesion amount. . Accordingly, the water content is 30 to 70% by mass, preferably 40 to 60% by mass.
- the lubricants described above include generally commercially available silicone-based antifoaming agents such as dimethylsiloxane, thiazoline-based compounds such as 1,2-benzoisothiazolin-3-one, hexahydro-1, 3, 5 — Preservatives such as triazines such as tris (2-hydroxyethyl) -S-triazine and pyridines such as 2-pyridinethiol-1-oxide sodium, etc. It can be added in the range of mass%. When an antifoaming agent is added, bubbling of the liquid can be prevented, and when a preservative is added, the liquid can be prevented from decaying.
- silicone-based antifoaming agents such as dimethylsiloxane, thiazoline-based compounds such as 1,2-benzoisothiazolin-3-one, hexahydro-1, 3, 5 —
- Preservatives such as triazines such as tris (2-hydroxyethyl) -S-triazin
- Mandoreruba adhesion amount of the first liquid to be applied to one surface 50 to 150 g / m 2 as a solid lubricant, it is desirable that preferably 80 to 120 / m 2. If the amount of the first liquid is too large, a film having a thickness more than necessary to prevent seizure is formed, which is economically disadvantageous. If the amount of the first liquid is too small, the necessary seizure prevention performance cannot be obtained.
- the second liquid applied to the surface of the mandrel bar after water cooling contains 5 to 30% by mass of one or more of borate amine, potassium borate, potassium molybdate or sodium, potassium carbonate or sodium, and 0 to 30% by mass of solid lubricant.
- An aqueous solution or an aqueous dispersion is an aqueous dispersion.
- Usable borate amines can be used as long as they form a water-soluble salt, such as monoethanolamine, monoisopropanolamine, diethanolamine, and triethanolamine.
- a solid lubricant can be blended in the second liquid as necessary.
- the solid lubricant that can be used as in the case of the first liquid, graphite, mica, or a mixture of these can be used. In addition to these, it is also possible to use a layered silicate alone.
- the upper limit of the amount of the solid lubricant compounded in the second liquid is 40% by mass, preferably 30% by mass, based on the total amount of the second liquid. If too much solid lubricant is blended in the second liquid, it becomes difficult to penetrate into the porous film of the first liquid, and the adhesion of the lubricating film cannot be sufficiently improved. On the other hand, if a solid lubricant is not blended with the second liquid, the seizure resistance of the formed lubricating film may be insufficient.
- Table 1 shows the composition of the eight types of first liquid (graphite 30% by mass, water-dispersible resin 5-40% by mass) heated to 300 ° C on a metal specimen with an amount of about lOOgZm 2 After 5 seconds, a cooling shower was continuously applied, and continued until the water stopped boiling (about 100 ° C).
- the conditions for the cooling shower were as follows.
- Nozzle shower nozzle
- the graphite used was scaly graphite (purity 81% or more), and the water-dispersible resin was 1: 1 vinyl acetate resin and bull acrylate resin.
- the state of film peeling at this time was evaluated according to the following criteria.
- ⁇ Peeled at a rate of 15% or more and less than 80%.
- Dryness and seizure resistance were evaluated by a rolling tester 40 schematically shown in FIG.
- This rolling test 40 simulates the situation of single-stand stretch rolling in a mandrel mill.
- the damage situation of the tool 41 was investigated.
- the rolling conditions are:
- Heating temperature 1000 ° C Roll peripheral speed: 392. 5mmZ seconds
- the graphite used was scaly graphite (purity 81% or more), and the water-dispersible resin was 1: 1 vinyl acetate resin and butyl acrylate resin.
- Tables 5 and 6 show the results of the drying and seizure resistance evaluation tests.
- the test was not possible.
- the second liquids D and J were strong in dryness due to a lot of water.
- the second liquids E and K were poor in dryness due to the large amount of borate amine.
- the first liquid 4 could not be tested because it could not be sprayed.
- the first liquid 5 had poor seizure resistance due to the small amount of solid lubricant.
- the second liquids D and E were inferior in seizure resistance due to the reduced drying properties.
- Second liquid I was poor in seizure resistance because of its high solid lubricant and poor permeability.
- the second liquid K is poor in seizure resistance due to poor penetration due to the large amount of inorganic lubricant. No. 2 had little inorganic lubricant! /, So the seizure resistance was bad.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800105011A CN101208160B (zh) | 2005-03-31 | 2006-03-31 | 无缝管的制造方法 |
JP2007511196A JP4705096B2 (ja) | 2005-03-31 | 2006-03-31 | 継目無管の製造方法 |
BRPI0609605-0A BRPI0609605B1 (pt) | 2005-03-31 | 2006-03-31 | Método de fabricação de tubo sem costura |
EP06730876A EP1872878B1 (en) | 2005-03-31 | 2006-03-31 | Process for producing seamless tube |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005100978 | 2005-03-31 | ||
JP2005-100978 | 2005-03-31 |
Publications (1)
Publication Number | Publication Date |
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WO2006106961A1 true WO2006106961A1 (ja) | 2006-10-12 |
Family
ID=37073511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/306928 WO2006106961A1 (ja) | 2005-03-31 | 2006-03-31 | 継目無管の製造方法 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1872878B1 (ja) |
JP (1) | JP4705096B2 (ja) |
CN (1) | CN101208160B (ja) |
BR (1) | BRPI0609605B1 (ja) |
WO (1) | WO2006106961A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016056273A (ja) * | 2014-09-09 | 2016-04-21 | 新日鐵住金株式会社 | 熱間製管用の潤滑組成物 |
JP2016074003A (ja) * | 2014-10-07 | 2016-05-12 | Jfeスチール株式会社 | マンドレルバーの冷却方法および冷却設備 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5392134B2 (ja) * | 2010-02-15 | 2014-01-22 | 新日鐵住金株式会社 | 熱間圧延工具用潤滑剤および熱間継目無管製造用マンドレルバーの表面処理方法 |
ES2623027T3 (es) | 2010-06-08 | 2017-07-10 | Coating Management Switzerland Gmbh | Método para producir tubos sin soldadura |
DE102010049645A1 (de) * | 2010-06-28 | 2011-12-29 | Sms Meer Gmbh | Verfahren zum Warmwalzen metallischer Hohlkörper sowie entsprechendes Warmwalzwerk |
DE102010052084B3 (de) * | 2010-11-16 | 2012-02-16 | V&M Deutschland Gmbh | Verfahren zur wirtschaftlichen Herstellung von nahtlos warmgewalzten Rohren in Rohrkontiwalzwerken |
CN103433283A (zh) * | 2013-08-28 | 2013-12-11 | 无锡欧龙特种钢管有限公司 | 一种轧管机石墨芯棒吹水装置 |
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JPS61252293A (ja) * | 1985-04-30 | 1986-11-10 | Hoechst Gosei Kk | 金属加工用潤滑剤とその使用方法 |
JPS63230797A (ja) * | 1987-03-19 | 1988-09-27 | Sumitomo Metal Ind Ltd | 速硬化型耐熱潤滑剤 |
JPH08165489A (ja) * | 1994-12-13 | 1996-06-25 | Sumitomo Metal Ind Ltd | 熱間加工用潤滑剤組成物 |
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GB1438215A (en) * | 1974-05-08 | 1976-06-03 | Lonz Ltd | High temperature lubricant |
CH674477A5 (ja) * | 1988-03-30 | 1990-06-15 | Lonza Ag | |
CN1042951C (zh) * | 1990-11-09 | 1999-04-14 | 上海宝山钢铁总厂 | 钢的热塑性加工用耐水性润滑剂 |
ATE188240T1 (de) * | 1992-02-06 | 2000-01-15 | Timcal Ag | Dornschmiermittel für die herstellung nahtloser rohre |
TW571000B (en) * | 2001-10-19 | 2004-01-11 | Nihon Parkerizing | Methods of preparing metal wires for plastic processing |
JP4193427B2 (ja) * | 2002-07-02 | 2008-12-10 | 住友金属工業株式会社 | 継目無鋼管の製造方法および製造装置 |
-
2006
- 2006-03-31 EP EP06730876A patent/EP1872878B1/en not_active Expired - Fee Related
- 2006-03-31 BR BRPI0609605-0A patent/BRPI0609605B1/pt not_active IP Right Cessation
- 2006-03-31 JP JP2007511196A patent/JP4705096B2/ja not_active Expired - Fee Related
- 2006-03-31 CN CN2006800105011A patent/CN101208160B/zh not_active Expired - Fee Related
- 2006-03-31 WO PCT/JP2006/306928 patent/WO2006106961A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61252293A (ja) * | 1985-04-30 | 1986-11-10 | Hoechst Gosei Kk | 金属加工用潤滑剤とその使用方法 |
JPS63230797A (ja) * | 1987-03-19 | 1988-09-27 | Sumitomo Metal Ind Ltd | 速硬化型耐熱潤滑剤 |
JPH08165489A (ja) * | 1994-12-13 | 1996-06-25 | Sumitomo Metal Ind Ltd | 熱間加工用潤滑剤組成物 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016056273A (ja) * | 2014-09-09 | 2016-04-21 | 新日鐵住金株式会社 | 熱間製管用の潤滑組成物 |
JP2016074003A (ja) * | 2014-10-07 | 2016-05-12 | Jfeスチール株式会社 | マンドレルバーの冷却方法および冷却設備 |
Also Published As
Publication number | Publication date |
---|---|
EP1872878A1 (en) | 2008-01-02 |
BRPI0609605A2 (pt) | 2010-04-20 |
JP4705096B2 (ja) | 2011-06-22 |
EP1872878B1 (en) | 2011-12-28 |
CN101208160B (zh) | 2010-05-19 |
JPWO2006106961A1 (ja) | 2008-09-18 |
EP1872878A4 (en) | 2009-01-21 |
BRPI0609605B1 (pt) | 2019-07-02 |
CN101208160A (zh) | 2008-06-25 |
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