WO2007116653A1 - 熱間塑性加工用潤滑剤及び熱間粉体潤滑剤組成物 - Google Patents
熱間塑性加工用潤滑剤及び熱間粉体潤滑剤組成物 Download PDFInfo
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- WO2007116653A1 WO2007116653A1 PCT/JP2007/056019 JP2007056019W WO2007116653A1 WO 2007116653 A1 WO2007116653 A1 WO 2007116653A1 JP 2007056019 W JP2007056019 W JP 2007056019W WO 2007116653 A1 WO2007116653 A1 WO 2007116653A1
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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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/02—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic oxygen-containing compound
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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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- 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
-
- 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
- C10M2201/0873—Boron oxides, acids or salts used as base material
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/1253—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- 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
-
- 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
- C10N2040/242—Hot working
Definitions
- the present invention relates to a lubricant for hot plastic casings that is used by being added to a lubricant composition containing sodium borate as a main component used in hot plastic casings.
- a hot plastic working lubricant used by adding to a lubricant composition containing sodium borate as a main component used in mandrel mill rolling, which is one of the seamless pipe manufacturing processes.
- a raw round steel piece (hereinafter sometimes referred to as “billette”) is heated in a heating furnace, and then subjected to piercing and rolling by a piercer (hereinafter referred to as a hollow shell).
- a piercer hereinafter referred to as “hollow shell”.
- the hollow shell is thickened by mandrel mill rolling. Then, for example, the outer shape is processed by an extractor sizer to form a finished product pipe.
- a mandrel bar is inserted into a hollow shell held at a high temperature of 1000 to 1300 ° C after piercing and rolling, for example, a pair of perforated rolls. It is drawn and rolled in a mandrel mill with 7 to 8 units arranged in tandem with a phase difference of 90 °.
- a phase difference of 90 ° When the hollow shell is drawn and rolled, relative slip occurs at the interface between the inner surface of the hollow shell and the outer surface of the mandrel bar.
- mandrel mill rolling it is necessary to improve the lubrication of the working interface so that this relative slip proceeds smoothly.
- a lubricant is applied to this processing interface to ensure a low and stable coefficient of friction, thereby preventing seizure between the hollow tube and the mandrel bar, and good inner surface quality and quality of the finished product tube. And obtaining dimensional accuracy.
- a water-dispersed lubricant mainly composed of graphite and a resin-based organic binder is applied to the surface of the mandrel bar before being inserted into the hollow shell and dried.
- a method of forming a solid lubricating film on the surface of a mandrel bar has been performed.
- Patent Document 1 the properties at the time of powder are improved, and when applied to the inner surface of the hollow shell, it can be uniformly applied to a predetermined processing position.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-338984
- Patent Document 2 JP 2002-338985 A
- the hot powder lubricant compositions described in Patent Documents 1 and 2 contain sodium borate as a main component and sodium carbonate as an auxiliary lubricant.
- this lubricant composition In mandrel mill rolling, when this lubricant composition is attached to the inner surface of a hollow shell at a high temperature of 1000 to 1300 ° C, it melts instantaneously while dissolving the scale generated on the processed surface. Spread on the machined surface. Then, by rotating the hollow shell with drawing and rolling, the lubricant composition can be evenly diffused. As a result, it is possible to obtain a finished product tube that exhibits good lubrication performance and is stable and has no inner surface flaws.
- This white scale does not affect the performance as a product, but deteriorates the appearance of the product pipe. Therefore, shot blasting is applied to the inner surface of the tube to remove the white scale. However, complicated processing steps and large processing costs are required. In addition, in order to further improve the lubrication performance, the improvement of the inner surface quality of finished product pipes is a challenge that is always required in this field.
- the present invention has been made in view of the above-described problems, and prevents the occurrence of a white scale due to the lubricant on the surface of the workpiece, thereby improving the appearance of the finished product.
- a lubricant for hot plastic working that can prevent crystallization using this lubricant for hot plastic working. It is an object of the present invention to provide a harming method, a hot powder lubricant composition containing the hot plastic working lubricant, and a method of manufacturing a seamless pipe using the lubricant composition.
- the inventors of the present invention are responsible for the white scale that occurs on the target material, for example, the white scale that occurs on the inner surface of the finished product tube after mandrel mill rolling.
- a lubricant composition containing sodium borate as a main component it was found that white scale is generated by crystallization of sodium borate.
- said subject could be solved by adding a predetermined
- the first aspect of the present invention is a lubricant for hot plastic working comprising a silicate compound, which is used in addition to a lubricant composition containing sodium borate as a main component used in hot plastic working. It is.
- the lubricant for hot plastic working according to the first aspect of the present invention is added to an inner surface lubricant that is attached to the inner surface of the hollow shell and used in mandrel minor rolling for stretching and rolling the hollow shell. Suitable for use.
- the silicate compound is preferably a layered silicate compound.
- the inner surface lubricant used by adhering to the inner surface of the hollow shell is a hot plastic caloe made of a silicate compound. This is a method for inhibiting crystallization by adding a lubricant.
- the silicate compound is preferably a layered silicate compound.
- the third aspect of the present invention is a first component which is one or more compounds selected from the group consisting of sodium borate anhydride, pentahydrate, and decahydrate, calcium carbonate, and / or lithium carbonate
- a lubricant for hot plastic working comprising a second component consisting of sodium salt of fatty acid and / or a third component consisting of calcium salt of fatty acid and a silicate compound.
- the first component is 30 to 80% by mass and the second component is 0 to 15% by mass, with the total content of the first component to the fourth component being 100% by mass.
- the hot powder lubricant composition has a third component of 5 to 15 mass% and a fourth component of 10 to 40 mass%.
- the lubricant for hot plastic working in the third invention is the lubricant for hot plastic working of the first invention.
- the fourth aspect of the present invention is a method for producing a seamless steel pipe by drawing and rolling a hollow shell, and the step of attaching the hot powder lubricant composition of the third aspect of the present invention to the inner surface of the hollow shell. And a step of drawing and rolling the hollow shell.
- the hot plastic cache lubricant of the present invention is used by being added to a lubricant composition containing sodium borate as a main component, and a white scale resulting from the lubricant is generated on the finished product. Can be prevented.
- FIG. 1 is a graph showing a reaction temperature range of crystallization of sodium borate with sodium carbonate calculated from Gibbs free energy.
- the lubricant for hot plastic working of the present invention comprises a silicate compound.
- a silicate compound is a compound composed of a metal oxide and silicon oxide. Examples of the metal constituting the metal oxide include aluminum, iron, calcium, magnesium, sodium, and potassium. be able to. For silicate compounds, SiO content is preferred.
- silicate compounds it is preferable to use a layered silicate compound in the present invention. This is because layered silicate has the effect of lowering the coefficient of friction and improving lubrication performance when added to a relatively soft lubricant composition. As a result, the coefficient of friction between the hot tool and the workpiece can be reduced, thereby extending the life of the hot tool and suppressing the occurrence of wrinkles on the workpiece. .
- Layered silicate compound For example, talc, neurophyllite, my strength (for example, natural gold strength, silk strength, sodium tetrasilicon strength, potassium tetrasilicon strength, fluorine gold strength), kaolin, montmorillonite, etc. Can be mentioned.
- the lubricant for hot plastic working of the present invention is composed of one or more silicate compounds.
- it when granulation or the like is required, it contains sodium-powered nonoxymethyl cellulose, polybuty alcohol, a salt of acrylic acid, etc. as a water-soluble resin as long as the effect of the present invention is not affected. Also good.
- the lubricant for hot plastic casing of the present invention is used by being added to a lubricant composition mainly composed of sodium borate used in the hot plastic casing.
- a lubricant composition mainly composed of sodium borate used in the hot plastic casing.
- a typical strength of a hot plastic case in which a lubricant composition mainly composed of sodium borate is used is mandrel mill rolling. In mandrel mill rolling, a lubricant composition mainly composed of sodium borate is attached to the inner surface of a hollow shell and used as a lubricant.
- the hot powder lubricant composition adhering to the inner surface of the hollow shell melts during hot rolling, spreads on the processed surface while dissolving the scale of the processed surface, and functions as a lubricant. After that, in the cooled stage, the lubricant remains on the inner surface of the hollow shell, but the remaining lubricant remains amorphous and transparent. The appearance of the tube is not deteriorated.
- a whitening scale may occur on the inner surface of the finished product pipe.
- the present inventors believe that the reason why this whitening scale occurs is that sodium borate in the hot powder composition is crystallized.
- the hot plastic lubricant for use in the present invention melts together with sodium borate to form an amorphous state that is difficult to crystallize after cooling, and therefore can prevent the occurrence of whitening scale. thinking. The mechanism of crystallization of sodium borate will be described later.
- the method for inhibiting crystallization of the present invention comprises adding a lubricant for hot plastic working as described above to a lubricant composition containing sodium borate as a main component used in a hot plastic casing, This is a method of inhibiting the crystallization of sodium borate in the composition.
- This method for example, when the hollow shell is subjected to mandrel mill rolling, when a lubricant composition containing sodium borate as a main component is adhered to the inner surface of the hollow shell, the inner surface of the finished product pipe This prevents the sodium borate in the lubricant from crystallizing and prevents the white scale from forming on the inner surface of the finished product tube even when the finished product tube is left standing for a certain period of time.
- a method for adding a hot plastic cache lubricant to a lubricant composition is as follows: a lubricant composition containing sodium borate as a main component and the hot plastic working lubricant of the present invention; After mixing, the mixture may be applied to the inner surface of the hollow shell, or the lubricant composition and the hot plastic cache lubricant may be separately applied to the inner surface of the hollow shell. May be. Even when applied separately, they melt and mix in the heat, forming an amorphous state that is difficult to crystallize after cooling.
- the hot powder lubricant composition of the present invention contains a first component, a second component, a third component, and a fourth component.
- the second component is an optional component, and has a force S when it is contained in the lubricant composition of the present invention and when it is not contained.
- a form in which the hot powder lubricant composition of the present invention is applied to mandrel mill rolling in which a hollow tube is stretch-rolled will be described, but the hot powder lubricant of the present invention is The present invention is not limited to this form and can be used for all hot plastic working using a powder lubricant.
- the first component consists of sodium borate (Na B 2 O 3) anhydride, pentahydrate, and decahydrate
- the first component is a component added to ensure fluid lubricity and scale solubility.
- the blending amount of the first component is preferably 30 to 80% by mass based on the mass of the entire first to fourth components (100% by mass). [0035] If the amount of the first component is too small, an appropriate viscosity cannot be maintained, and the lubricating performance is poor. If the amount of the first component is too large, the coefficient of friction cannot be reduced, and properties at the time of powder (solidification prevention during storage, fluidity during transportation) will deteriorate. From the above viewpoint, the blending amount of the first component is more preferably 40 to 70% by mass.
- sodium borate pentahydrate contains moderate crystallization water, and thus foams moderately when adhering to the inner surface of the high-temperature hollow shell. As a result, the lubricant is appropriately diffused, and the lubricant can be uniformly applied to the entire inner surface.
- sodium borate pentahydrate is a powdery property that does not easily cause the problem of agglomeration of the powder during storage due to the release of crystal water (preservation of solidification during storage, transportability during transportation). Good fluidity).
- anhydrous sodium borate does not contain water of crystallization, and therefore does not foam when attached to the inner surface of a high-temperature hollow tube. Therefore, when applying the lubricant, there is a possibility that the lubricant cannot be uniformly applied to the entire inner surface because the lubricant has no effect of being diffused by the foaming of crystal water.
- the sodium borate decahydrate causes the lubricant to foam excessively when the lubricant is adhered to the inner surface of a high-temperature hollow shell containing a large amount of crystal water. As a result, wind pressure is generated, making it difficult to uniformly apply the lubricant to a predetermined position on the inner surface.
- sodium borate decahydrate releases crystal water, so that sodium borate dissolves and aggregates. In this case, there is a possibility that clogging occurs in the piping for conveying the powder lubricant, resulting in poor conveyance.
- the second component is calcium carbonate and Z or lithium carbonate.
- the second component is an optional component.
- the above-described sodium borate has fluid lubricity and scale solubility, has good reactivity with the force-sensitive material, and can impart lubricity, but increases the viscosity of the lubricant. For this reason, the viscosity of the lubricant can be lowered by blending calcium carbonate and Z or lithium carbonate as an auxiliary lubricant. This makes the lubricant It can be uniformly diffused on the inner surface of the hollow shell, and lubricity can be ensured over the entire inner surface.
- the scale existing on the inner surface may cause wrinkles on the inner surface, but the second component has the effect of melting this scale quickly and preventing wrinkles.
- the second component calcium carbonate and lithium carbonate have low solubility in water, the lubricant remaining on the inner surface of the finished product pipe after mandrel mill rolling is prevented from absorbing moisture, This can prevent sodium from crystallizing and prevent the generation of white scale on the inner surface.
- the blending amount of the second component is preferably 15% by mass or less based on the mass of the entire first to fourth components (100% by mass). If the amount of the second component is too large, the viscosity of the lubricant becomes too low and the lubricity deteriorates.
- the conventional lubricant contained sodium carbonate instead of calcium carbonate 'lithium carbonate, which is the second component in the present invention.
- a white scale was generated on the inner surface of the finished product pipe. The following is a description of the matters that the present inventors think about the reason why a white scale occurs when a conventional lubricant is used.
- the powder lubricant composition adhering to the inner surface of the high-temperature hollow shell is a mixture of sodium borate that has reacted with the scale and sodium borate that has been excessively administered. It becomes. And after cooling, it solidifies as an amorphous lubricant.
- This amorphous lubricant is transparent. However, this amorphous lubricant crystallizes as Na B O 5 ⁇ 5 ⁇ by repeated moisture absorption and drying to form a white scale.
- FIG. 1 is a diagram showing the result of calculating the Gibbs free energy of the above equation (1).
- Figure 1 shows the reaction temperature range for crystallization of sodium borate with sodium carbonate, and shows that the reaction proceeds to the right under the condition of A G ⁇ 0.
- the reaction of the above formula (1) proceeds to the right, so that NaBO is generated.
- Table 1 shows the borate
- the present inventors have studied various auxiliary lubricants in place of sodium carbonate. As a result, the present inventors have excellent high-temperature fluidity as an auxiliary lubricant and exhibit sufficient lubrication performance. Attention was focused on calcium carbonate and lithium carbonate.
- calcium carbonate can lower the viscosity of sodium borate as an auxiliary lubricant, like sodium carbonate, and can exhibit equivalent lubricating performance, but has a solubility in 100 ml of water. 1. 4mg (25 ° C) and 1.8mg (75 ° C) small.
- Lithium carbonate can also reduce the viscosity of sodium borate as an auxiliary lubricant, like sodium carbonate, and can exhibit equivalent lubricating performance.
- the solubility in 100 ml of water is as low as 1.54 g (0 ° C) and 0.73 g (100 ° C).
- the third component is a sodium salt of a fatty acid and / or a calcium salt of a fatty acid. Fatty acid sodium salt and calcium salt are used when the powder lubricant composition of the present invention is stored. It is an essential component for maintaining good properties.
- the blending amount of the third component is preferably 5 to 15% by mass based on the mass of the entire first to fourth components (100% by mass).
- the powder lubricant composition may not be smoothly transferred in the piping when the powder lubricant composition is conveyed.
- the amount of the third component is too large, the third component burns instantaneously when the lubricant is put into the high-temperature hollow shell, and the powder lubricant composition diffuses due to the combustion gas. Too much may be discharged from the inside of the hollow shell. In this case, the amount of adhesion decreases as a result, and the lubricity deteriorates. Moreover, when the adhesion amount is increased, it is uneconomical.
- Examples of the sodium salt and calcium salt of fatty acid include salts of saturated fatty acids such as stearic acid and palmitic acid; salts of fatty acids obtained from natural vegetable oils such as fatty acids of palm oil fatty acid and palm kernel oil; beef tallow fatty acids and the like And fatty acid salts obtained from these animal fats.
- the fourth component is a hot plastic working lubricant comprising a silicate compound.
- the lubricant for hot plastic working of the fourth component the same one as the above-described lubricant for hot plastic working of the present invention can be used.
- the use of calcium carbonate and / or lithium carbonate as the second component which is an auxiliary lubricant prevents white scale from occurring on the inner surface of the product pipe. .
- the fourth component prevents the white scale from forming on the inner surface of the product tube from a different viewpoint than the second component.
- the silicate compound as the fourth component and the sodium borate as the first component are dissolved in heat and mixed with each other.
- the amorphous state formed by mixing the silicate compound and sodium borate is difficult to crystallize, thereby preventing white scale from forming on the inner surface of the product tube.
- the hot powder lubricant composition described above is adhered to the inner surface of the hollow shell and lubricated between the inner surface of the hollow shell and the mandrel bar.
- a method for producing a seamless pipe including a step of drawing and rolling a hollow tube. Seamless pipe manufacturing As an overall configuration of the method, for example, a billet is pierced and rolled with a piercer to form a hollow shell, the hollow shell is stretched and rolled by mandrel mill rolling, and then the outer shape is processed by a sizer. The usual method is applied.
- the production method of the present invention is
- the temperature of the hollow shell is set to 1000 to 1300 ° C. If this temperature is too low, the lubricant composition of the present invention cannot be melted and the lubricating performance cannot be exhibited.
- the upper limit of the temperature of the hollow shell is defined by the melting point of the material of the hollow shell.
- the heating step of heating the hollow shell to the above-mentioned temperature may be introduced in the mandrel mill rolling step, or at the time of heating during the extension rolling by the piercer. The remaining heat may be used.
- Table 2 The components shown in Table 2 were mixed in a powder mixer to produce a hot powder lubricant composition of the present invention. Details of each component are as follows.
- Sodium borate anhydrous An average particle size of about 0.6 mm and a purity of 98% or more.
- Sodium borate pentahydrate An average particle size of about 0.4 mm and a purity of 98% or more.
- Sodium borate decahydrate An average particle size of about 0.3 mm and a purity of 98% or more.
- Calcium carbonate An average particle diameter of about 0.1 mm and a purity of 98% or more.
- Lithium carbonate An average particle size of about 0.3 mm and a purity of 99% or more.
- Fatty acid sodium salt (sodium beef tallow fatty acid salt): An average particle size of about 0.3 mm and a purity of 5% or more.
- Fatty acid calcium salt (stearic acid calcium salt): An average particle size of about 0.4 mm and a purity of 97% or more.
- Each component shown in Table 2 was mixed in a powder mixer to produce a hot powder lubricant composition. Details of each component are the same as in Examples 1 to 12 above.
- the piece was charged with a 7 ° tilt and heated for 10 minutes.
- the lubricant prepared on this test piece was charged and heated in an electric furnace (atmosphere) set at 1000 ° C for 3 minutes. Thereafter, the test piece was taken out and allowed to cool.
- the lubrication performance of each lubricant was evaluated according to the following criteria based on the extent of lubricant spread on each specimen.
- test pieces obtained above were left for 30 days, and the occurrence of white scale was evaluated according to the following criteria.
- the hot powder lubricant compositions (Examples 1 to 12) of the present invention showed good results in terms of lubrication performance and white scale generation.
- the amount of the fourth component layered silicate compound is less than the range of the present invention. Therefore, the lubrication performance and the performance to suppress the white scale were inferior.
- the hot powder lubricant compositions of Comparative Examples 4 to 7 do not contain the fourth component layered silicate compound in which the amount of the first component sodium borate is larger than the amount within the range of the present invention. Thereby, the lubrication performance and the performance of suppressing the white scale were inferior.
- the hot powder lubricant composition of Comparative Example 6 contains sodium carbonate instead of the second component, calcium carbonate. This led to crystallization of sodium borate and a white scale.
- Each component shown in Table 3 was placed in a powder mixer and mixed to prepare a hot powder lubricant composition of the present invention. Details of each component are the same as in Examples 1 to 12 above.
- Each component shown in Table 3 was mixed in a powder mixer to produce a hot powder lubricant composition. Details of each component are the same as in Examples 1 to 12 above.
- Examples 13 to 15 and Comparative Examples 8 to 10 The hot powder lubricant compositions prepared in Examples 10 and 10 were used, and actual operation was performed using a 5-stand full retort mandrel mill.
- a plain steel hollow shell was used as the material to be rolled.
- the dimensions of the holo-shell before rolling were 330mm in outline, 18mm in thickness, and 7000mm in length.
- the temperature before rolling was 1150 ° C.
- the mandrel lever used was 258mm in outer diameter, 24000mm in length, made of SKD6 and chrome-plated on the surface (50 zm). Then, rolled rolling was performed so that the dimensional force of the finished pipe after mandrel mill rolling was 276 mm, the thickness was 8 mm, and the length was 18300 mm.
- the lubricant was injected by injecting 1 lOOcc of lubricant from one end of the hollow shell before rolling with a nitrogen carrier gas of 1.47 X 10 5 Pa.
- A The coefficient of friction is less than 0.025.
- the friction coefficient is 0.025 or more and less than 0.03.
- the coefficient of friction is 0.03 or more.
- the finished pipe obtained above was allowed to stand for 30 days after pipe making and evaluated according to the following criteria.
- the hot powder lubricant compositions of the present invention showed good results in terms of friction coefficient and white scale.
- the lubricant composition does not contain the layered silicate as the fourth component. Therefore, the lubrication performance is deteriorated and the effect of suppressing the generation of white scale is reduced.
- sodium carbonate is contained instead of the second component, calcium carbonate. For this reason, sodium borate crystallized and a white scale was generated.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2008509724A JP4885948B2 (ja) | 2006-03-27 | 2007-03-23 | 熱間塑性加工用潤滑剤及び熱間粉体潤滑剤組成物 |
MX2008012028A MX2008012028A (es) | 2006-03-27 | 2007-03-23 | Lubricante para trabajar metal en caliente y composicion de lubricante en polvo para trabajar metal en caliente. |
EP07739460.9A EP2000525B1 (en) | 2006-03-27 | 2007-03-23 | Lubricant for hot plastic working and powder lubricant composition for hot working |
US12/293,391 US8082767B2 (en) | 2006-03-27 | 2007-03-23 | Lubricant for hot metal working and powder lubricant composition for hot metal working |
CN2007800099176A CN101405377B (zh) | 2006-03-27 | 2007-03-23 | 热塑性加工用润滑剂以及热加工粉末润滑剂组合物 |
Applications Claiming Priority (2)
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JP2006086753 | 2006-03-27 | ||
JP2006-086753 | 2006-03-27 |
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WO2007116653A1 true WO2007116653A1 (ja) | 2007-10-18 |
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PCT/JP2007/056019 WO2007116653A1 (ja) | 2006-03-27 | 2007-03-23 | 熱間塑性加工用潤滑剤及び熱間粉体潤滑剤組成物 |
Country Status (6)
Country | Link |
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US (1) | US8082767B2 (ja) |
EP (1) | EP2000525B1 (ja) |
JP (1) | JP4885948B2 (ja) |
CN (1) | CN101405377B (ja) |
MX (1) | MX2008012028A (ja) |
WO (1) | WO2007116653A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012096149A1 (ja) * | 2011-01-13 | 2012-07-19 | 住友金属工業株式会社 | 継目無金属管の熱間圧延用潤滑剤 |
Families Citing this family (1)
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CN101880580B (zh) * | 2010-06-28 | 2013-01-16 | 河南省长城特种润滑脂有限公司 | 超高温润滑脂及制备方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6416894A (en) * | 1987-07-10 | 1989-01-20 | Sumitomo Metal Ind | Solid lubricant for hot processing |
JPH04108900A (ja) * | 1990-08-30 | 1992-04-09 | Sumitomo Metal Ind Ltd | 超硬ロールの肌荒れ防止方法 |
JPH05171165A (ja) * | 1991-12-25 | 1993-07-09 | Sumitomo Metal Ind Ltd | 継目無金属管の熱間圧延用潤滑剤 |
JPH0641567A (ja) * | 1992-07-21 | 1994-02-15 | Nippon Parkerizing Co Ltd | 温熱間塑性加工用粉末状潤滑剤とその製法 |
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 |
JPH10121088A (ja) * | 1996-10-15 | 1998-05-12 | Sumitomo Metal Ind Ltd | 金属の高温加工用潤滑剤組成物およびその使用方法 |
JP2002338984A (ja) | 2001-05-15 | 2002-11-27 | Sumitomo Metal Ind Ltd | 熱間粉体潤滑剤組成物 |
JP2002338985A (ja) | 2001-05-15 | 2002-11-27 | Sumitomo Metal Ind Ltd | 熱間粉体潤滑剤組成物 |
JP2006182927A (ja) * | 2004-12-28 | 2006-07-13 | Jfe Steel Kk | 継目無鋼管熱間圧延用潤滑剤 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL104410C (ja) * | 1956-05-16 | |||
US3915870A (en) * | 1974-02-21 | 1975-10-28 | Ball Brothers Res Corp | Mold release composition containing tungsten disulfide |
JPS5755247A (en) * | 1980-09-19 | 1982-04-02 | Misao Kanaumi | Automobile with slip preventive device to press tire against ground |
JP2638500B2 (ja) * | 1993-11-29 | 1997-08-06 | 株式会社神戸製鋼所 | 連続乾式伸線方法及びその装置 |
DE4440301A1 (de) * | 1994-11-11 | 1996-05-15 | Metallgesellschaft Ag | Schmiermittelträgersalz für die Metallumformung |
JPH10130687A (ja) * | 1996-10-30 | 1998-05-19 | Kawasaki Steel Corp | 熱間加工用潤滑剤組成物 |
WO2003080774A1 (en) * | 2002-03-25 | 2003-10-02 | Nihon Parkerizing Co., Ltd. | Metal soap-coated particle, article made with the same, process for production, lubricating coating agent, and lubricating coating film |
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。 |
-
2007
- 2007-03-23 WO PCT/JP2007/056019 patent/WO2007116653A1/ja active Application Filing
- 2007-03-23 CN CN2007800099176A patent/CN101405377B/zh not_active Expired - Fee Related
- 2007-03-23 MX MX2008012028A patent/MX2008012028A/es active IP Right Grant
- 2007-03-23 US US12/293,391 patent/US8082767B2/en active Active
- 2007-03-23 JP JP2008509724A patent/JP4885948B2/ja active Active
- 2007-03-23 EP EP07739460.9A patent/EP2000525B1/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6416894A (en) * | 1987-07-10 | 1989-01-20 | Sumitomo Metal Ind | Solid lubricant for hot processing |
JPH04108900A (ja) * | 1990-08-30 | 1992-04-09 | Sumitomo Metal Ind Ltd | 超硬ロールの肌荒れ防止方法 |
JPH05171165A (ja) * | 1991-12-25 | 1993-07-09 | Sumitomo Metal Ind Ltd | 継目無金属管の熱間圧延用潤滑剤 |
JPH0641567A (ja) * | 1992-07-21 | 1994-02-15 | Nippon Parkerizing Co Ltd | 温熱間塑性加工用粉末状潤滑剤とその製法 |
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 |
JPH10121088A (ja) * | 1996-10-15 | 1998-05-12 | Sumitomo Metal Ind Ltd | 金属の高温加工用潤滑剤組成物およびその使用方法 |
JP2002338984A (ja) | 2001-05-15 | 2002-11-27 | Sumitomo Metal Ind Ltd | 熱間粉体潤滑剤組成物 |
JP2002338985A (ja) | 2001-05-15 | 2002-11-27 | Sumitomo Metal Ind Ltd | 熱間粉体潤滑剤組成物 |
JP2006182927A (ja) * | 2004-12-28 | 2006-07-13 | Jfe Steel Kk | 継目無鋼管熱間圧延用潤滑剤 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2000525A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012096149A1 (ja) * | 2011-01-13 | 2012-07-19 | 住友金属工業株式会社 | 継目無金属管の熱間圧延用潤滑剤 |
Also Published As
Publication number | Publication date |
---|---|
CN101405377B (zh) | 2012-10-10 |
US20090205392A1 (en) | 2009-08-20 |
EP2000525A1 (en) | 2008-12-10 |
JP4885948B2 (ja) | 2012-02-29 |
MX2008012028A (es) | 2009-01-07 |
US8082767B2 (en) | 2011-12-27 |
JPWO2007116653A1 (ja) | 2009-08-20 |
EP2000525B1 (en) | 2016-09-28 |
CN101405377A (zh) | 2009-04-08 |
EP2000525A4 (en) | 2012-03-28 |
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