JPWO2006054768A1 - 熱間粉体潤滑剤組成物および継目無管の製造方法 - Google Patents
熱間粉体潤滑剤組成物および継目無管の製造方法 Download PDFInfo
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- sodium borate
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- 239000000314 lubricant Substances 0.000 title claims abstract description 73
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 239000000843 powder Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 43
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 40
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 20
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 claims abstract description 20
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 17
- 229910021538 borax Inorganic materials 0.000 claims abstract description 16
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 16
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 15
- 239000000194 fatty acid Substances 0.000 claims abstract description 15
- 229930195729 fatty acid Natural products 0.000 claims abstract description 15
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 15
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 239000011575 calcium Chemical class 0.000 claims abstract description 9
- 150000004686 pentahydrates Chemical class 0.000 claims abstract description 6
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical class [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 claims abstract description 6
- 150000004691 decahydrates Chemical class 0.000 claims abstract description 4
- 241000669298 Pseudaulacaspis pentagona Species 0.000 abstract description 34
- 238000002425 crystallisation Methods 0.000 abstract description 14
- 230000008025 crystallization Effects 0.000 abstract description 14
- 238000005461 lubrication Methods 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 11
- 238000001035 drying Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 229910004835 Na2B4O7 Inorganic materials 0.000 abstract 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 24
- 239000011734 sodium Substances 0.000 description 24
- 229910000029 sodium carbonate Inorganic materials 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 6
- 239000011651 chromium Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 3
- CDMADVZSLOHIFP-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 CDMADVZSLOHIFP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- ZCXUWYGUGJQPPR-UHFFFAOYSA-N trisodium;borate;pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[Na+].[O-]B([O-])[O-] ZCXUWYGUGJQPPR-UHFFFAOYSA-N 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 235000015278 beef Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- CZCSLHYZEQSUNV-UHFFFAOYSA-N [Na].OB(O)O Chemical compound [Na].OB(O)O CZCSLHYZEQSUNV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- QZSYXKPOZFXCDM-UHFFFAOYSA-N disodium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate;pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].O=BOB([O-])OB([O-])OB=O QZSYXKPOZFXCDM-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 229940077637 sodium borate anhydrous Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- C10M103/00—Lubricating compositions characterised by the base-material being an inorganic material
- C10M103/06—Metal compounds
-
- 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
- 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
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- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/02—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a non-macromolecular organic compound
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- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C10M2201/087—Boron oxides, acids or salts
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- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
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Abstract
Description
一方、中空素管の加工表面に付着させて使用する潤滑剤としては、従来から種々の潤滑剤が継続して検討されてきたが、いずれも十分な効果を発揮していない。特に、マンドレルミル圧延技術における改善進歩も顕著なものとなっており、リテインド・マンドレルミル圧延においては、要求される潤滑剤の摩擦係数や仕上製品管の内面品質を十分に満足させるまでに至っていない。
上記公報で提案の粉体潤滑剤を用いてマンドレルミル圧延を行うと、取り扱い易く作業性に優れるだけでなく、圧延時の中空素管とマンドレルバーとの摩擦を大幅に低減できることから、仕上製品管に発生する内面疵を低減することができる。
かかる白色スケールは、製品としての性能に影響を与えることがないが、外観の見栄えが低下することになる。そのため、管内面にショットブラストを施して、白色スケールを除去する必要が生じることがあるが、この場合には、煩雑な処理工数と多大な処理費用を要することになる。
Na2B4O7+Na2CO3→4・NaBO2+CO2 ・・・ (1)
図1に示す結果から、約350℃以上の温度域、すなわち、マンドレルミル圧延直後には、上記(1)式の反応が右に進むことから、NaBO2が生成する。表1に、硼酸塩の溶解度を示す。
(1)熱間加工に用いる潤滑剤組成物であって、硼酸ナトリウムの無水塩、5水塩または10水塩のいずれか一種または二種以上を40〜90質量%、炭酸カルシウムまたは炭酸リチウムのいずれか一種または二種を5〜30質量%、および脂肪酸のNa塩またはCa塩のいずれか一種または二種を5〜30質量%で混合してなることを特徴とする熱間粉体潤滑剤組成物である。
上記硼酸ナトリウムとして、その5水塩の配合を高め、40〜90質量%で混合するのが望ましい。
これと同時に、粉体時の固化性および流動性が良好であり、被加工材の加工面への拡散性に優れ、マンドレルミル圧延時の潤滑性能を維持でき、マンドレルバーと管内面での摩擦係数の低減が図れるので、マンドレルバーの寿命を延長でき、また管内面疵の発生も低減できる。
すなわち、40質量%未満では、その他の有効成分を多く混合しすぎることから粘性が低くなり、結果的に潤滑性能が劣化する。また、90質量%を超えると、その他の成分が少なくなり過ぎることになり、摩擦係数を軽減できなくなるばかりか、粉体時の性質が低下することになる。硼酸ナトリウムの混合比は、さらに望ましくは50〜80質量%である。
しかしながら、炭酸カルシウムまたは/および炭酸リチウムの配合が5質量%未満では、粘性を低くすることができず、加工全面に亘る均一な潤滑性を確保することができない。一方、30質量%を超えた場合には、粘性が低くなりすぎて結果的に潤滑性が悪化する。
(実施例1)
電気炉を用いて、潤滑性能(高温時の流動性)と白色スケールの発生状況との評価試験を実施した。表2に、試験に供試した潤滑剤の組成を示す。また、供試した潤滑剤の成分条件は次の通りとした。
硼酸ナトリウム5水塩:平均粒径約0.4mm、純度98%以上
硼酸ナトリウム10水塩:平均粒径約0.3mm、純度98%以上
炭酸カルシウム:平均粒径約0.1mm、純度約98%
炭酸ナトリウム:平均粒径約0.3mm、純度約99%
脂肪酸のNa塩(牛脂脂肪酸のNa塩):平均粒径約0.3mm、純度約95%
脂肪酸のCa塩(ステアリン酸のCa塩):平均粒径約0.4mm、純度約97%
白色スケールの発生状況は、30日間放置し、白色スケールの発生がないものを○、白色スケールの発生が観察されたものを×とした。
これに対し、比較例1、2では補助潤滑剤である炭酸カルシウムの配合が少ない、または配合されていないため、潤滑性能は不良であった。さらに、比較例3では、炭酸ナトリウムの配合があったため、放置期間中に吸湿、結晶化が行われ白色スケールの発生が観察された。
実施例2では、補助潤滑剤として炭酸カルシウムに替えて、炭酸リチウムを用いて、実施例1と同様の潤滑性能(高温時の流動性)と白色スケールの発生状況との評価試験を実施した。このときに供試した潤滑剤の組成を表3に示す。ただし、炭酸カルシウムの平均粒径約0.1mm、純度約99%とし、他の供試剤の成分条件は実施例1の場合と同様とし、潤滑性の評価試験および白色スケールの発生状況を観察した。
圧延装置として5スタンドフルリトラクトマンドレルミルを用いて、実機操業での摩擦係数および白色スケールの発生状況の評価を行った。供試した潤滑剤の成分条件は、(実施例1、2)の場合と同様とし、供試潤滑剤の組成を表4に示す。
マンドレルミル圧延時の摩擦係数は、マンドレルバーのリテインド力を各スタンド荷重の和で除した値で評価した。評価は、上記値が0.03未満のものを○、0.03以上のものを×とした。
また、白色スケールの発生状況は、製管後30日間放置し、白色スケールの発生がないものを○、白色スケールの発生が観察されたものを×とした。
これと同時に、粉体時の固化性および流動性が良好であり、被加工材の加工面への拡散性に優れ、マンドレルミル圧延時の潤滑性能を維持でき、マンドレルバーと管内面での摩擦係数の低減が図れるので、マンドレルバーの寿命を延長でき、また管内面疵の発生も低減できる。これらにより、マンドレルミル圧延による継目無管の製造に最適な粉体潤滑剤として、広く採用される。
Claims (4)
- 熱間加工に用いる潤滑剤組成物であって、硼酸ナトリウムの無水塩、5水塩または10水塩のいずれか一種または二種以上を40〜90質量%、炭酸カルシウムまたは炭酸リチウムのいずれか一種または二種を5〜30質量%、および脂肪酸のNa塩またはCa塩のいずれか一種または二種を5〜30質量%で混合してなることを特徴とする熱間粉体潤滑剤組成物。
- 前記硼酸ナトリウムとして、その5水塩を40〜90質量%で混合してなることを特徴とする請求項1に記載の熱間粉体潤滑剤組成物。
- 請求項1または2に記載の熱間粉体潤滑剤組成物を、所定の熱間加工温度に加熱された被加工材の加工表面に付着させた後、マンドレルミル圧延を行うことを特徴とする継目無管の製造方法。
- 前記熱間加工温度を1000〜1300℃とすることを特徴とする請求項3に記載の継目無管の製造方法。
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WO2007126005A1 (ja) * | 2006-04-28 | 2007-11-08 | Sumitomo Metal Industries, Ltd. | ステンレス鋼管の製造方法 |
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JPH0841474A (ja) * | 1994-07-27 | 1996-02-13 | Sumitomo Metal Ind Ltd | 熱間塑性加工用潤滑剤及び加工方法 |
JPH10130687A (ja) * | 1996-10-30 | 1998-05-19 | Kawasaki Steel Corp | 熱間加工用潤滑剤組成物 |
JP2000226591A (ja) * | 1999-02-05 | 2000-08-15 | Sumitomo Metal Ind Ltd | 熱間塑性加工用潤滑剤および熱間塑性加工方法 |
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 |
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JPH0841474A (ja) * | 1994-07-27 | 1996-02-13 | Sumitomo Metal Ind Ltd | 熱間塑性加工用潤滑剤及び加工方法 |
JPH10130687A (ja) * | 1996-10-30 | 1998-05-19 | Kawasaki Steel Corp | 熱間加工用潤滑剤組成物 |
JP2000226591A (ja) * | 1999-02-05 | 2000-08-15 | Sumitomo Metal Ind Ltd | 熱間塑性加工用潤滑剤および熱間塑性加工方法 |
JP2002338984A (ja) * | 2001-05-15 | 2002-11-27 | Sumitomo Metal Ind Ltd | 熱間粉体潤滑剤組成物 |
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