WO2005023966A1 - 継目無鋼管加工潤滑剤組成物 - Google Patents
継目無鋼管加工潤滑剤組成物 Download PDFInfo
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- WO2005023966A1 WO2005023966A1 PCT/JP2004/012833 JP2004012833W WO2005023966A1 WO 2005023966 A1 WO2005023966 A1 WO 2005023966A1 JP 2004012833 W JP2004012833 W JP 2004012833W WO 2005023966 A1 WO2005023966 A1 WO 2005023966A1
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- soluble polymer
- water
- viscosity
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- steel pipe
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B2045/026—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for tubes
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0242—Lubricants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
- C10M2201/0623—Oxides; Hydroxides; Carbonates or bicarbonates used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/087—Boron oxides, acids or salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
- C10M2201/1033—Clays; Mica; Zeolites used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/241—Manufacturing joint-less pipes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/247—Stainless steel
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/015—Dispersions of solid lubricants
- C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
Definitions
- the present invention relates to a hot pipe rolling lubricant mainly used for manufacturing a seamless steel pipe by a Mannesmann pipe manufacturing method.
- a heated solid billet or bloom is formed into a hollow pipe by a punch, and the hollow pipe is then drawn into a stretching mill. Finished into product pipe by diameter rolling mill.
- the inner surface of the tube is forcibly lubricated with a lubricant to prevent seizure and the like.
- a graphite-based lubricant mainly composed of granular graphite, scale-like graphite, earthy graphite or the like is used as a solid or in a liquid state mixed with a binder.
- Patent Document 1 proposes an oxide-based layered compound and a composition comprising a combination of boric acid and an alkali metal borate, instead of a conventional graphite-based lubricant.
- Patent Document 2 proposes a composition comprising a combination of natural or artificial myric, vermiculite, bentonite and Li, Na, K, borate metaborate, pyroborate and hydrates thereof. Let's do it. Compositions comprising a combination of these oxide layered compounds and boric acid are effective as non-carburizing lubricants having excellent lubricity.
- graphite-based lubricants do not require non-carburizing properties. Therefore, these graphite-based lubricants can be prepared by sufficiently adding a conventional organic thickener (for example, a water-soluble acrylic resin or a water-soluble cellulose such as sodium carboxymethyl cellulose). Can be given.
- a conventional organic thickener for example, a water-soluble acrylic resin or a water-soluble cellulose such as sodium carboxymethyl cellulose.
- Patent Document 3 discloses a lubricant that satisfies the above-mentioned properties by blending both a water-soluble polymer and a water-dispersible polymer in a large amount.
- Patent Document 1 JP-A-64-16894
- Patent Document 2 Japanese Patent Application Laid-Open No. 5-171165
- Patent Document 3 JP-A-2-51592
- the present invention provides a non-carburizing property, storage stability without impairing excellent lubricity for difficult-to-treat materials such as 13 chromium steel and stainless steel, transportability in equipment piping, and lubrication points. It is an object of the present invention to provide a seamless steel pipe working lubricant composition which satisfies various properties such as sprayability and uniform adhesion to a high-temperature mandrel bar.
- the present invention is a seamless steel pipe working lubricant composition having a viscosity characteristic represented by the following approximate formula.
- after 90 seconds from the end of shearing means that the composition is subjected to an operation of stirring and shearing, and 30 seconds after the end of the operation, measurement is started at a predetermined shear rate, The measurement start force refers to a further 60 seconds later. Therefore, “after 90 seconds” corresponds to the sum of the above 30 seconds and 60 seconds.
- the term “at the end of shearing” refers to the time when the rotation of the propeller for the stirring operation is stopped.
- the seamless steel pipe working lubricant composition comprises 10 to 40% by mass of an oxide layered compound, 5 to 30% by mass of at least one of an alkali metal salt or an amine salt of boric acid, and an alkali metal of boric acid. It is preferable that one or more water-soluble polymers soluble in one or more aqueous solutions of a salt or an amine salt comprise 0.1 to 3.0% by mass, with the balance being water.
- the seamless steel pipe working lubricant composition comprises, as a water-soluble polymer, a pseudoplastic flowable water-soluble polymer, or a pseudoplastic flowable water-soluble polymer and a titotropic flowable water-soluble polymer. And a molecule.
- the seamless steel pipe working lubricant composition may be prepared as a water-soluble polymer, in an amount of 0.01 to 1.0% by mass of a pseudo-plastic flowable water-soluble polymer, based on the total amount of the composition; Water-soluble polymer preferably contains 0.1 to 2.0% by mass.
- the oxide-based layered compound used as a main component in the seamless steel pipe working lubricant composition of the present invention is, for example, a natural or artificial force. As my power
- Natural gold my power ⁇ KMg (AlSi O) (OH) ⁇ and so on.
- One or more of these can be used in the seamless steel pipe working lubricant composition of the present invention.
- vermiculite, bentonite, or the like can be used instead of, or together with, my power.
- Most preferred for the seamless steel pipe working lubricant composition of the present invention is sodium tetrasilicon myric.
- the average particle size of the oxide-based layered compound is 1 to 40 zm, preferably 530 ⁇ m.
- the amount of the oxide-based layered compound to be added is 1040% by mass, preferably 2030% by mass in the composition of the seamless steel pipe working lubricant of the present invention. If the amount of the oxide-based layered compound is too small, the seizure resistance is lowered, and lubricity is problematic. On the other hand, if the addition amount of the oxide-based layered compound is too large, the viscosity of the composition becomes too high, which causes a problem in workability.
- the alkali metal borate or amine salt in the composition aids its spreadability in the high-temperature mandrel bar along with the oxide-based layered compound as a base material, and also acts as an auxiliary lubricant by itself.
- the alkali metal borate include lithium borate, sodium borate, and potassium borate. Also, like borax (Na B ⁇ ⁇ 10 ⁇ ), metaborate,
- pyroborate and / or hydrate can also be used.
- the addition amount of the alkali metal borate salt or the amine salt in the composition is 5 to 30% by mass, preferably 10 to 20% by mass. Excessive amounts of these salts interfere with the lubricity of the base material. On the other hand, if the added amount of these salts is too small, the main purpose of spreading the main agent in the mandrel bar is not good, and the lack of fluid lubrication results in insufficient lubrication.
- the water-soluble polymer used in the seamless steel pipe working lubricant composition of the present invention includes natural, semi-natural or synthetic water-soluble polymers within a range satisfying the viscosity conditions specified by the present invention. They can be used alone or in combination. These water-soluble polymers will be specifically described later.
- FIG. 1 shows an ideal viscosity form found by the present inventors.
- Figure 1 shows viscosity on the vertical axis and time on the horizontal axis.
- 3 is a graph of the viscosity that changes with time under each of the conditions.
- FIG. 1 satisfies various properties such as storage stability without adding a large amount of polymer, transportability in equipment piping, sprayability to lubrication points, and uniform adhesion to high-temperature mandrel bars.
- the present inventors have found that it is necessary to satisfy the following expression. That is, the viscosity characteristics of the lubricant composition of the present invention satisfying the above-mentioned various properties were measured by the viscosity measurement method described in Examples described later, and the obtained viscosity characteristic curves showed the following approximate expressions a and b. Was within the range.
- b when b is larger than -0.3, the difference between the viscosity of the lubricant composition at rest and the viscosity at the time of shearing (at the time of spraying) is small, causing a problem in transfer or spraying. If b is less than -1.0, when the lubricant composition is sprayed onto the tool because the viscosity is too low during spraying, the attached lubricant is scraped off by the pressure of the lubricant itself, Or scatter. More preferably,
- Typical examples of pseudoplastic flowable water-soluble polymers include biogum such as xanthan gum, perlan gum, and ramzan gum.
- the chemical structure of xanthan gum is a water-soluble high molecular polysaccharide composed of repeating binding blocks in units of two components of glucose, two mannoses and one glucuronic acid.
- Figure 2 shows the chemical structure model.
- Representative examples of the thixotropic flowable water-soluble polymer include carboxymethyl cellulose salts (Na salt, K salt, amine salt).
- FIG. 3 shows a chemical structure model of a long-chain polymer in which glucose is glucosidically bound.
- Pseudoplastic fluidity and / or thixotropic fluidity may be determined by the following substances, which are difficult to distinguish clearly due to the influence of molecular weight, other components (for example, metal (Ca, etc.) ions) and pH.
- bio gums such as juran gum and succinognorecan
- natural polysaccharides such as tamarind, cod gum, locust bean gum, carrageenan
- methylcellulose etinoresenorelose, hydroxyethinoresenorelose, hydroxype pinoresenorelose
- hydroxy Senolerose derivatives such as etinolemethinoresenorelose and hydroxypropinolemethinoresenorelose
- other salts of polyacrylic acid Na salt, K salt, and amine salt
- salts of alginic acid Na salt, K salt, and amine salt
- FIG. 4 shows the viscosity characteristics of the static plastic flowable water-soluble polymer in the static state and the dynamic state
- FIG. 5 shows that of the thixotropic flowable water-soluble polymer.
- the transition from a static state to a dynamic state is linear with only a pseudoplastic flowable water-soluble polymer, which is within the scope of the present invention but is not sufficiently satisfactory.
- the change in viscosity of the flowable water-soluble polymer of Titaso-Toku pick-up is smaller than that of the flowable water-soluble polymer of pseudoplastic, and the difference in viscosity when transitioning to the static state and dynamic state is smaller and gentler. is there.
- the thixotropic flowable water-soluble polymer requires a certain amount of time (yield value) from the occurrence of the dynamic state to the decrease in viscosity.
- the thixotropic flowable water-soluble polymer also needs time to increase its viscosity when moving from dynamic to static. If such a change in viscosity takes time S, the viscosity of the lubricant sprayed on the mandrel bar cannot be changed for an ideal film formation in the film formation process until drying. As a result, uniform adhesion to the mandrel bar is difficult. Therefore, the thixotropic flowable water-soluble polymer alone cannot sufficiently satisfy the object of the present invention.
- the addition ratio of the pseudoplastic flowable water-soluble polymer is 0.01 to 1.0% by mass based on the total amount of the composition, and the addition of the thixotropic flowable water-soluble polymer is based on the total amount of the composition.
- the ratio is 0.1 to 2.0% by mass based on the total amount of the composition.
- the ratio of the pseudoplastic flowable water-soluble polymer is 0.05-0.5% by mass on the basis of the total amount of the composition, and the ratio of the thixotropic flowable water-soluble polymer is based on the total amount of the composition. It is 0.5-1.5 mass% based on the standard.
- the addition ratio of the pseudoplastic flowable water-soluble polymer is greater than the ratio of the thixotropic flowable water-soluble polymer, the change in viscosity due to shearing becomes too large, causing difficulty in uniform adhesion to the mandrel bar. .
- the ratio of the thixotropic flowable water-soluble polymer is too large, the dispersion stability of the oxide-based layered compound and the spreadability to the high-temperature mandrel bar become poor, and uniform adhesion becomes difficult.
- the viscosity form of the two types of mixed systems has a composite form of the viscosity characteristics shown in Figs.
- the qualitative viscosity characteristics are as follows. That is, in FIG. 1, the viscosity at the time of standing is high at the point (i) due to the properties of the pseudo plastic fluid. Thereafter, when shearing is applied, (i) the viscosity decreases (i) to (iii), which has a synthetic form of the pseudoplastic flow and the thixotropic flow state. Finally, as soon as the shearing is completed, the viscosity increases as indicated in Gv)
- addition of a general antifoaming agent and dispersant is also permitted, because addition of a small amount (0.5% by mass or less based on the total amount of the composition) is permissible for organic compounds because of the risk of carburization. Addition of carbon-containing or inorganic materials is permitted as long as the basic performance of the present invention is not affected.
- Measuring device A type B rotational viscometer was used.
- Measurement temperature set to 25 ° C.
- Shearing condition 500ml sample is put in 500ml beaker, and propeller of ⁇ 50mm
- Rotation speed low rotation (1.5 rpm) [Shear speed: 0.332-0.366 (s—])
- shear rate has a range of numerical values is due to the fact that the cone actually used differs for each sample in a rotational viscometer that measures the viscosity by rotating the cone on a plate.
- Static viscosity A sample that has been static for 24 hours after stirring the sample is started measuring at a low shear rate, and the viscosity obtained by multiplying the scale of the viscometer 60 seconds after the measurement start force is multiplied by the reading coefficient, and continues to increase. The measurement was started at a speed, and the scale obtained by reading the scale 60 seconds after the measurement starting force was multiplied by a coefficient was recorded as a static viscosity.
- Shear viscosity The sample is agitated with a propeller to apply shear, and measurement is started at a low shear rate 30 seconds after the operation is completed, and the scale of the viscometer is measured 60 seconds after the start of the measurement. The viscosity multiplied by the reading coefficient and the measurement were started at a high shear rate 30 seconds after the sample was agitated again, and the viscosity multiplied by the reading coefficient on the scale at 60 seconds after the measurement starting force was recorded as the shear viscosity.
- log (X) and log (Y) are obtained for X and Y obtained by the above measurement, and plotted in accordance with the vertical and horizontal axes of the graph, respectively. Is obtained. From the plotted data, the slope of the linear function “b” and the vertical axis intercept “a” can be obtained by the least squares method.
- “supernatant” refers to a substantially transparent liquid portion containing no solid matter. The detection was performed by observing from the side of a 500 ml beaker and measuring the height of the supernatant from the sample liquid surface. Further, the supernatant height was evaluated as a percentage of the total liquid level.
- bottom sedimentation refers to a state in which the solid lubricant has settled at the bottom and a hard layer having no fluidity can be confirmed.
- Raw processing piercing and rolling by inclined roll piercing mill Shape: outer diameter 181. Omm, wall thickness 16. Omm, length 7000mm
- tube shape outer diameter 151. Omm, wall thickness 5. Omm, length 25,300 mm
- finish rolling with a stretch reducer consisting of 26 stands, outer diameter 63.5 mm, wall Finished to a steel pipe with a thickness of 7.0mm and a length of 40,000mm.
- An arc-shaped test piece with a thickness of 5 mm, a width of 25 mm, and a length of 50 mm was collected from the steel pipe. Using this test piece, a sulfuric acid-copper sulfate corrosion test specified in JIS G0575 was performed, and the state of intergranular corrosion cracking generated on the inner surface was observed.
- Spray method Airless spray was used.
- Discharge pressure 3. Set to OMPa.
- Nozzle 1 / 4MVVP5010 (Ikeuchi Corporation)
- Spray angle 50 degrees (the angle that spreads in a fan shape when spraying water)
- Sample temperature set at 25 ° C and evaluated.
- A Sprayed at almost a predetermined angle (50 degrees).
- ⁇ Slightly narrower than the specified angle (40 45 degrees).
- ⁇ considerably narrower than a predetermined angle (20-39 degrees).
- X Almost spread (less than 20 degrees) or large spray particles.
- Spray method Airless spray was used.
- Discharge pressure 3. Set to OMPa.
- Nozzle 1 / 4MVVP5010 (Ikeuchi Corporation)
- Specimen temperature 60, 80, 100, 120. Set to C.
- Nozzle specimen distance The test was performed at 250 mm.
- Evaluation method Spray the specimen (65mm X 120mm X 30mm steel plate) under the test conditions, heat the specimen to 120 ° C after application, dry the lubricant, and then increase the temperature to 2040 ° C. After allowing to cool, the lubricant film was peeled off with a knife, the weight was measured, and the value obtained by dividing the weight by the adhesion area (0.0078 m 2 ) was used as the adhesion amount, and evaluation was performed according to the following evaluation criteria.
- Tables 13 and 13 show the results of the above tests 1) and 5).
- the lubricating oil composition of the present invention exhibited excellent performance in all aspects of storage stability, sprayability, and adhesion.
- the composition group shown in the comparative example was incapable of obtaining satisfactory performance in these respects.
- the seamless steel pipe processing lubricant composition of the present invention is useful as a processing lubricant in a Mannesmann pipe manufacturing process for manufacturing a seamless steel pipe used as an oil country tubular good or the like.
- FIG. 1 is a view showing an ideal viscosity form as a seamless steel pipe working lubricant composition.
- FIG. 2 is a view showing a chemical structure model of an example of a pseudoplastic fluid water-soluble polymer.
- FIG. 3 is a view showing a chemical structure model of a long-chain polymer in which glucose is darcoside-bonded as an example of a thixotropic fluid water-soluble polymer.
- FIG. 4 is a diagram showing viscosity characteristics of a static plastic fluid water-soluble polymer in a static state and a dynamic state.
- FIG. 5 is a diagram showing viscosity characteristics of a thixotropic fluid water-soluble polymer in a static state and a dynamic state.
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Abstract
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP04772782.1A EP1666576B1 (en) | 2003-09-04 | 2004-09-03 | Lubricant composition for seamless steel pipe working |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-312232 | 2003-09-04 | ||
JP2003312232 | 2003-09-04 |
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WO2005023966A1 true WO2005023966A1 (ja) | 2005-03-17 |
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EP (1) | EP1666576B1 (ja) |
JP (1) | JP5292575B2 (ja) |
CN (1) | CN100575468C (ja) |
WO (1) | WO2005023966A1 (ja) |
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CN102703193A (zh) * | 2012-05-25 | 2012-10-03 | 衡阳市金化科技有限公司 | 一种高温水基芯棒润滑剂及其制备方法 |
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JP4910693B2 (ja) * | 2006-12-28 | 2012-04-04 | 住友金属工業株式会社 | マンドレルバーへの潤滑剤の塗布方法、マンドレルバーへの潤滑剤の膜厚管理方法および継目無鋼管の製造方法。 |
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 |
JP5142232B2 (ja) * | 2010-12-22 | 2013-02-13 | 新日鐵住金株式会社 | 継目無鋼管の製造方法 |
CN104450136A (zh) * | 2014-11-05 | 2015-03-25 | 衡阳市金化科技有限公司 | 膨润土润滑剂 |
CN106334713A (zh) * | 2016-09-26 | 2017-01-18 | 天津钢管集团股份有限公司 | 钛合金无缝管的热轧润滑工艺方法 |
WO2024116556A1 (ja) * | 2022-11-28 | 2024-06-06 | 日本製鉄株式会社 | 潤滑剤組成物、及び、これを用いた継目無金属管の製造方法 |
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2004
- 2004-09-03 EP EP04772782.1A patent/EP1666576B1/en not_active Expired - Lifetime
- 2004-09-03 CN CN200480025327A patent/CN100575468C/zh not_active Expired - Fee Related
- 2004-09-03 WO PCT/JP2004/012833 patent/WO2005023966A1/ja active Application Filing
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JPH0978080A (ja) | 1995-09-12 | 1997-03-25 | Sumitomo Metal Ind Ltd | 高温加工用潤滑剤組成物およびその使用方法 |
EP0839895A2 (en) | 1996-10-30 | 1998-05-06 | Kawasaki Steel Corporation | Lubricant for use in hot work tools |
JP2001234189A (ja) * | 2000-02-21 | 2001-08-28 | Sumitomo Metal Ind Ltd | 穿孔圧延プラグ用潤滑剤および継目無鋼管の穿孔圧延方法 |
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Also Published As
Publication number | Publication date |
---|---|
CN100575468C (zh) | 2009-12-30 |
EP1666576A4 (en) | 2009-05-20 |
JP5292575B2 (ja) | 2013-09-18 |
JP2009287023A (ja) | 2009-12-10 |
EP1666576A1 (en) | 2006-06-07 |
EP1666576B1 (en) | 2014-07-23 |
CN1845982A (zh) | 2006-10-11 |
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