JPH0264196A - Lubricant for producing seamless steel pipe - Google Patents
Lubricant for producing seamless steel pipeInfo
- Publication number
- JPH0264196A JPH0264196A JP21362388A JP21362388A JPH0264196A JP H0264196 A JPH0264196 A JP H0264196A JP 21362388 A JP21362388 A JP 21362388A JP 21362388 A JP21362388 A JP 21362388A JP H0264196 A JPH0264196 A JP H0264196A
- Authority
- JP
- Japan
- Prior art keywords
- lubricant
- water
- acid
- weight
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000314 lubricant Substances 0.000 title claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 title claims description 18
- 239000010959 steel Substances 0.000 title claims description 18
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000002253 acid Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 9
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004021 humic acid Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000004925 Acrylic resin Substances 0.000 abstract description 4
- -1 polyethylene Polymers 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 abstract 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 15
- 239000003921 oil Substances 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000005098 hot rolling Methods 0.000 description 5
- 229910021382 natural graphite Inorganic materials 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920002689 polyvinyl acetate Polymers 0.000 description 3
- 239000011118 polyvinyl acetate Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Polymers CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は水分散型の継目無し屑百造管用熱間潤滑剤、と
りわけマンドレルミル造管におけるマンドレルバ−用潤
滑剤に関し、スプレー塗布時に、高温域(100ないし
400℃)で均一かつ厚い膜を形成し、さらに、乾燥皮
膜が耐水性、耐衝撃性、さらに潤滑性にも優れるマンド
レルバ−用潤滑剤に関するものである。したがって本発
明は、潤滑剤製造業と鋼雪製造業において有用なもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a water-dispersed hot lubricant for seamless scrap pipe making, particularly to a lubricant for mandrel bars in mandrel mill pipe making. The present invention relates to a lubricant for mandrel bars which forms a uniform and thick film at a temperature of 100 to 400° C.) and which has a dry film with excellent water resistance, impact resistance, and lubricity. Therefore, the present invention is useful in the lubricant manufacturing industry and the steel snow manufacturing industry.
従来の技術
継目無し鋼管造管用潤滑剤としては、一般に油(たとえ
ば重油、廃油など)に黒鉛粉末を混合させた、いわゆる
油性型、あるいは水に黒鉛粉末を分散させた水分散型の
潤滑剤が用いられている。Conventional lubricants for seamless steel pipe manufacturing are generally oil-based lubricants that are made by mixing graphite powder with oil (e.g., heavy oil, waste oil, etc.), or water-dispersed lubricants that are made by dispersing graphite powder in water. It is used.
油性型潤滑剤は炎または煙を多量に発生するため、作業
環境の悪化や火災の危険を伴う。一方、油性型の弊害を
改善するために、水分散型の潤滑剤が開発されている。Oil-based lubricants generate a large amount of flame or smoke, which poses a risk of deterioration of the working environment and fire. On the other hand, water-dispersed lubricants have been developed to improve the disadvantages of oil-based lubricants.
水分散型の潤滑剤としては1分散剤を用いて黒鉛を水に
分散させた組成物(特公昭62=−17639号公報)
、黒鉛のバインダーとして合成樹脂を用いた組成物(特
開昭58−138795号公報、特公昭59−3731
7号公報および特公昭62−34357号公報)などが
公表されている。As a water-dispersible lubricant, a composition in which graphite is dispersed in water using a dispersant (Japanese Patent Publication No. 17639)
, a composition using a synthetic resin as a binder for graphite (JP-A-58-138795, JP-A-59-3731)
7 and Japanese Patent Publication No. 62-34357).
しかし、このような水分散型の潤滑剤においては、
マンドレルバ−の表面温度が高温域(100ないし40
0℃)では、スプレー塗布時に、均一かつ厚い皮膜が得
られず、充分な潤滑効果が発揮されない欠点があった。However, in such water-dispersed lubricants, the surface temperature of the mandrel bar is in the high temperature range (100 to 40
(0°C), a uniform and thick film could not be obtained during spray application, and a sufficient lubricating effect could not be achieved.
発明が解決しようとする問題点
本発明は、前記した従来の水分散型の潤滑剤の欠点を解
消し、マンドレルバ−温度が高温域(]00ないし40
0℃)でもバー表面に均一かつ厚い皮膜を形成し、極め
て良好な熱間潤滑性能を発揮することができる継目無し
鋼管造管用潤滑剤の提供を目的とする。Problems to be Solved by the Invention The present invention solves the drawbacks of the conventional water-dispersed lubricants described above, and improves the mandrel bar temperature in the high temperature range (]00 to 40
The purpose of the present invention is to provide a lubricant for seamless steel pipe manufacturing that can form a uniform and thick film on the bar surface even at 0°C and exhibit extremely good hot lubrication performance.
問題点を解決するための手段
この目的を達成するために、本発明者らは黒鉛のマンド
レルバ−表面への付着性の向上及び均一皮膜形成につい
て、種々研究を重ねた結果、多塩基性高分子ff1li
t2の塩を配合することにより、厚くかつ均一な潤滑剤
皮膜が形成できること、さらに、極めて優れた潤滑性能
を発揮する継目無し鋼管造管用潤滑剤となりうることを
見いだした。すなわち、本発明の趣旨とするところは、
微粉末黒鉛と水に溶けない微粒子状合成樹脂を主成分と
する組成物に、多塩基性高分子量酸の塩として、フミン
酸、ニトロフミン酸及びリグニンスルホン酸から選択さ
れた1種又は2杆以上の塩の混合物を含有させて、水に
分散させたことを特徴とする継目無し鋼管造管用潤滑剤
に関するものである。Means for Solving the Problems In order to achieve this objective, the present inventors have conducted various studies on improving the adhesion of graphite to the mandrel bar surface and forming a uniform film, and as a result, we have developed a polybasic polymer. ff1li
It has been found that by blending the salt of t2, a thick and uniform lubricant film can be formed, and furthermore, it can be used as a lubricant for seamless steel pipe manufacturing that exhibits extremely excellent lubrication performance. That is, the gist of the present invention is to
A composition mainly composed of fine powder graphite and a water-insoluble fine particulate synthetic resin, and one or more selected from humic acid, nitrofumic acid, and ligninsulfonic acid as a salt of a polybasic high molecular weight acid. The present invention relates to a lubricant for seamless steel pipe manufacturing, characterized in that the lubricant contains a mixture of salts of the present invention and is dispersed in water.
(多塩基性高分子1酸の塩)
本発明における多塩基性高分子1酸の塩としては、フミ
ン酸、ニトロフミン酸及びリグニンスルホン酸のナトリ
ウム塩、カリウム塩、カルシウム塩、マグネシウム塩、
アンモニウム塩、アミン塩等が適当である。これらの塩
は1種又は2種以上を組み合わせて使用し、その添加量
は水分散液中に0.01重量%ないし5重M%の範囲が
適当である。添加量が0.01重量%未満では本発明の
効果を奏することが困難である。(Salt of polybasic polymer monoacid) Salts of polybasic polymer monoacid in the present invention include sodium salts, potassium salts, calcium salts, magnesium salts of humic acid, nitrofumic acid, and ligninsulfonic acid;
Ammonium salts, amine salts, etc. are suitable. These salts may be used alone or in combination of two or more, and the appropriate amount of the salts added is in the range of 0.01% by weight to 5% by weight in the aqueous dispersion. If the amount added is less than 0.01% by weight, it is difficult to achieve the effects of the present invention.
(微粉末黒鉛)
本発明において使用される微粉末黒鉛は、天然品、合成
品あるいは工状、鱗状を問わないが、平均粒径は黒鉛の
分散安定性および潤滑剤供給装置の保守管理の面から1
00μm以下であることが望ましい。(Fine powder graphite) The fine powder graphite used in the present invention may be natural, synthetic, engineered, or scaly, but the average particle size is determined from the viewpoint of dispersion stability of graphite and maintenance management of the lubricant supply device. from 1
It is desirable that the thickness is 00 μm or less.
(微粒子状合成樹脂)
本発明において使用される微粒子状合成樹脂は、一般に
用いられているものを使用することができる。その例は
、ポリアクリル系樹脂、ポリ酢酸ビニル系樹脂、ポリ変
性酢酸ビニル系樹脂、ポリスチレン系樹脂、ポリエチレ
ン系樹脂、ポリエポキシ系樹脂等である。(Fine Particulate Synthetic Resin) As the particulate synthetic resin used in the present invention, commonly used ones can be used. Examples thereof include polyacrylic resins, polyvinyl acetate resins, polymodified vinyl acetate resins, polystyrene resins, polyethylene resins, polyepoxy resins, and the like.
(任意添加物)
本発明の潤滑剤は基本的には、微粉末黒鉛と合成樹脂及
び多塩基性高分子量酸の塩から構成されるが、これらの
組成物を水中に安定に分散させる目的で、他の成分、例
えば、界面活性剤、高分子分散剤、pI−1調整剤、増
粘剤等を添加しても本発明の効果が減少するものでなく
、その必要に応じて任意に加えることができる。(Optional Additives) The lubricant of the present invention is basically composed of finely powdered graphite, a synthetic resin, and a salt of a polybasic high molecular weight acid, but for the purpose of stably dispersing these compositions in water. , other components such as surfactants, polymeric dispersants, pI-1 regulators, thickeners, etc., do not reduce the effects of the present invention, and can be added as necessary. be able to.
(使用方法)
本発明の潤滑剤を使用する時には、水に希釈して使用す
ることができる。加工条件や塗布条件によって異なるが
、本発明の潤滑剤の必須成分と補助的成分の合計量が希
釈液の30ないし70重量%になるように希釈して使用
することができる。(How to use) When using the lubricant of the present invention, it can be diluted with water. Although it varies depending on processing conditions and application conditions, the lubricant of the present invention can be diluted and used so that the total amount of essential components and auxiliary components is 30 to 70% by weight of the diluent.
実施例
本発明を一層理解しやすくするために、下記に実施例を
示す。EXAMPLES In order to make the present invention easier to understand, examples are given below.
〈芙験例〉
第1表に示した組成物について、付着性(すなわち付着
量および皮膜の均一性)を調べた結果を、第1図及び第
2表に示す。<Experimental Example> The results of examining the adhesion properties (namely, the amount of adhesion and the uniformity of the film) of the compositions shown in Table 1 are shown in FIG. 1 and Table 2.
マンドレルバ−への潤滑剤の塗布は、マンドレルバ−移
動(移動速度1ないし4 m / s )時に行われる
。このことを勘案して以下に示すような動的試験条件下
で、付着性実験を行った。The application of lubricant to the mandrel bar takes place during the movement of the mandrel bar (travel speed 1 to 4 m/s). Taking this into consideration, an adhesion experiment was conducted under the dynamic test conditions shown below.
速度2.0m/sで移動中の、所定温度に加熱した鋼バ
イブ(φ90x4tx150Lmm)に試料油をスプレ
ーで塗布した後、鋼パイプ表面上の付着皮膜量(g)と
皮膜の均一性を調べた。After spraying sample oil onto a steel vibrator (φ90 x 4t x 150Lmm) heated to a predetermined temperature while moving at a speed of 2.0 m/s, the amount (g) of the deposited film on the surface of the steel pipe and the uniformity of the film were examined. .
スプレー条件は以下の通りである。The spray conditions are as follows.
ポンプ :エアレスポンプ206T (グラコ製)
、圧縮比lO:1
スプレーガン:24AUA 自動ガン(スプレーイン
ク・システム社)
(SPRAYING SYSTEMS Colノズル
:φ0.61mm
スプレー距離:200mm
吐出圧力 : 40 K g f / c m’吐出
量 :30g/s
鋼バイブ温度=60ないし400℃
試料油希釈液:各試料油共に45重量%水分散液として
スプレー塗布し
た。Pump: Airless pump 206T (made by Graco)
, Compression ratio lO: 1 Spray gun: 24 AUA Automatic gun (Spray Ink Systems Co., Ltd.) (SPRAYING SYSTEMS Col nozzle
: φ0.61mm Spray distance: 200mm Discharge pressure: 40 K g f / cm Discharge amount: 30 g/s Steel vibrator temperature = 60 to 400°C Sample oil dilution liquid: Spray each sample oil as a 45% by weight water dispersion Coated.
付着量(g):測定回数5回 第1表 試料油組成 注)(1)試料AとBは、従来技術の潤滑剤である。Adhesion amount (g): Number of measurements: 5 times Table 1 Sample oil composition Note: (1) Samples A and B are conventional lubricants.
(2)試料1ないし5は、本発明の潤滑剤である。(2) Samples 1 to 5 are lubricants of the present invention.
(3)表中の組成割合は、重量部をもって表わされてい
る。(3) The composition ratios in the table are expressed in parts by weight.
第2表 塗布皮膜の均−性 注)×は皮膜が非常に不均一であったことを示し、 ○は未乾燥皮膜が形成されたことを示し。Table 2 Uniformity of coated film Note: × indicates that the film was extremely uneven. ○ indicates that an undried film was formed.
0は乾燥皮膜が非常にち密であったことを示す。0 indicates that the dried film was very dense.
実施例! (試料N[LI) 天然黒鉛(鱗状) 65重量部。Example! (Sample N [LI) Natural graphite (scaly) 65 parts by weight.
ポリアクリル系樹脂 35重量部、フミン酸アンモ
ニウム塩 0.02重量部上記組成物に水を加えて分散
液とした。分散液中の上記組成物の濃度は、45重量%
であった。35 parts by weight of polyacrylic resin and 0.02 parts by weight of ammonium humate salt Water was added to the above composition to prepare a dispersion. The concentration of the above composition in the dispersion was 45% by weight.
Met.
この分散液をマンドレルミルによる継目無し鋼管の熱間
圧延に連続適用(200本)した。潤滑剤は移動速度2
.0m/sのマンドレルバ−にエアレススプレーして塗
布した。その際のマンドレルバ−表面温度は+00ない
し250℃で、潤滑剤皮膜は均一で良く付着し、その膜
厚は30ないし40μmで、比較例(比較例A)として
の従来技術の潤滑剤より、均一で厚い皮膜を形成した。This dispersion was continuously applied (200 pieces) to hot rolling of seamless steel pipes using a mandrel mill. The lubricant has a moving speed of 2
.. The coating was applied by airless spraying onto a mandrel bar at 0 m/s. At that time, the mandrel bar surface temperature was +00 to 250°C, and the lubricant film was uniform and well adhered, and the film thickness was 30 to 40 μm, which was more uniform than the conventional lubricant as a comparative example (comparative example A). A thick film was formed.
その結果、比較例に比べて摩擦係数が80%以下となり
、ミル駆動電力の低減(約15%)、圧延の安定化など
の改善が得られた。As a result, the friction coefficient was 80% or less compared to the comparative example, and improvements such as reduction in mill drive power (about 15%) and stabilization of rolling were obtained.
実施例2(試料述2)
天然黒鉛(鱗状) 65重量部、ポリ酢酸ビニル
系樹脂 35重量部、
フミン酸ナトリウム塩 0.05重量部、上記組成物に
水を加えて分散液とした。分散液中の上記組成物の濃度
は、45重量%であった。Example 2 (Sample Description 2) 65 parts by weight of natural graphite (scaly), 35 parts by weight of polyvinyl acetate resin, 0.05 parts by weight of sodium humate salt, and water were added to the above composition to prepare a dispersion. The concentration of the composition in the dispersion was 45% by weight.
この分散液をマンドレルミルによる継目無し鋼管の熱間
圧延に連続適用(300本)した、潤滑剤は移動速度2
.0m/sのマンドレルバ−にエアレススプレーして塗
布した。その際のマンドレルバ−表面温度は150ない
し350℃で、潤滑剤皮膜は均一で良く付着し、その膜
厚は40ないし50μmで、比較例(比較例B)として
の従来技術の潤滑剤より、均一で厚い皮膜を形成した。This dispersion was continuously applied (300 pieces) to the hot rolling of seamless steel pipes using a mandrel mill, and the lubricant had a moving speed of 2.
.. The coating was applied by airless spraying onto a mandrel bar at 0 m/s. At this time, the mandrel bar surface temperature was 150 to 350°C, and the lubricant film was uniform and adhered well, and the film thickness was 40 to 50 μm, which was more uniform than the conventional lubricant as a comparative example (comparative example B). A thick film was formed.
その結果、比較例に比べて摩擦係数が75%以下となり
、ミル駆動電力の低減(約20%)、圧延の安定化など
の改善が得られた6
実施例3(試料隘3)
天然黒鉛(鱗状) 65重量部、ポリ酢酸
ビニル系樹脂 34.5重量部ニトロフミン酸ア
ンモニウム塩 0.5重量部上記組成物に水を加えて分
散液とした。分散液中の上記組成物の濃度は、45重量
%であった。As a result, the friction coefficient was 75% or less compared to the comparative example, and improvements such as reduction in mill drive power (approximately 20%) and stabilization of rolling were obtained.6 Example 3 (Sample Wall 3) Natural graphite ( Scales) 65 parts by weight, polyvinyl acetate resin 34.5 parts by weight nitrofumic acid ammonium salt 0.5 parts by weight Water was added to the above composition to prepare a dispersion. The concentration of the composition in the dispersion was 45% by weight.
この分散液をマンドレルミルによる継目無し鋼管の熱間
圧延に連続適用(400本)した、潤滑剤は移動速度2
.0m/sのマンドレルバ−にエアレススプレーして塗
布した。その際のマンドレルバ−表面温度は+50ない
し350℃で、潤滑剤皮膜は均一で良く付着し、その膜
厚は40ないし55μmで、比較例(比較例B)として
の従来技術の潤滑剤より、均一で厚い皮膜を形成した。This dispersion was continuously applied (400 pieces) to the hot rolling of seamless steel pipes using a mandrel mill, and the lubricant had a moving speed of 2.
.. The coating was applied by airless spraying onto a mandrel bar at 0 m/s. At this time, the mandrel bar surface temperature was +50 to 350°C, and the lubricant film was uniform and adhered well, and the film thickness was 40 to 55 μm, which was more uniform than the conventional lubricant as a comparative example (comparative example B). A thick film was formed.
その結果、比較例に比べて摩擦係数が75%以下となり
、ミル駆動電力の低減(約20%)、圧延の安定化など
の改善が得られた。As a result, the friction coefficient was 75% or less compared to the comparative example, and improvements such as reduction in mill driving power (about 20%) and stabilization of rolling were obtained.
実施例4(試料阻4)
天然黒鉛(鱗状) 65重量部、ポリア
クリル系樹脂 34iTfm部、リグニンス
ルホン酸ナトリウム塩 1重電部、上記組成物に水を加
えて分散液とした。分散液中の上記組成物の濃度は、4
5重量%であった。Example 4 (Sample Sample 4) 65 parts by weight of natural graphite (scaly), 34 parts by weight of polyacrylic resin, 1 part by weight of sodium ligninsulfonate, and water were added to the above composition to prepare a dispersion. The concentration of the above composition in the dispersion is 4
It was 5% by weight.
この分散液をマンドレルミルによる継目無し鋼管の熱間
圧延に連続適用(350本)した。潤滑剤は移動速度2
.0m/sのマンドレルバ−にエアレススプレーして塗
布した。その際のマンドレルバ−表面温度は150ない
し300℃で、潤滑剤皮膜は均一で良く付着し、その膜
厚は45ないし55μmで、比較例(比較例A)として
の従来技術の潤滑剤より、均一で厚い皮膜を形成した。This dispersion was continuously applied to hot rolling of seamless steel pipes (350 pipes) using a mandrel mill. The lubricant has a moving speed of 2
.. The coating was applied by airless spraying onto a mandrel bar at 0 m/s. At this time, the mandrel bar surface temperature was 150 to 300°C, and the lubricant film was uniform and well adhered, and the film thickness was 45 to 55 μm, which was more uniform than the conventional lubricant as a comparative example (comparative example A). A thick film was formed.
その結果、比較例に比べて摩擦係数が70%以下となり
、ミル駆動電力の低減(約20%)、圧延の安定化など
の改善が得られた。As a result, the friction coefficient was 70% or less compared to the comparative example, and improvements such as reduction in mill drive power (about 20%) and stabilization of rolling were obtained.
実施例5(試料隘5)
天然黒鉛(鱗状) 65重量部、ポリア
クリル系樹脂 31重量部、フミン酸アンモ
ニウム塩 3重量部、リグニンスルホン酸ナト
リウム塩 1重量部上記組成物に水を加えて分散液とし
た。分散液中の上記組成物の濃度は、45重量%であっ
た。Example 5 (Sample size 5) 65 parts by weight of natural graphite (scaly), 31 parts by weight of polyacrylic resin, 3 parts by weight of ammonium humate salt, 1 part by weight of sodium ligninsulfonate Salt Add water to the above composition and disperse. It was made into a liquid. The concentration of the composition in the dispersion was 45% by weight.
この分散液をマンドレルミルによる継目無し鋼管の熱間
圧延に連続適用(400本)した、潤滑剤は移動速度2
.0m/sのマンドレルバ−にエアレススプレーして塗
布した。その際のマンドレルバ−表面温度は+50ない
し350℃で、潤滑剤皮膜は均一で良く付着し、その膜
厚は45ないし55μmで、比較例(比較例A)として
の従来技術の潤滑剤より、均一で厚い皮膜を形成した。This dispersion was continuously applied (400 pieces) to the hot rolling of seamless steel pipes using a mandrel mill, and the lubricant had a moving speed of 2.
.. The coating was applied by airless spraying onto a mandrel bar at 0 m/s. At this time, the mandrel bar surface temperature was +50 to 350°C, and the lubricant film was uniform and well adhered, and the film thickness was 45 to 55 μm, which was more uniform than the conventional lubricant as a comparative example (comparative example A). A thick film was formed.
その結果、比較例に比べて摩擦係数が70%以下となり
、ミル駆軌電力の低減(約20%)、圧延の安定化など
の改善が得られた。As a result, the friction coefficient was 70% or less compared to the comparative example, and improvements such as reduction in mill track drive power (about 20%) and stabilization of rolling were obtained.
発明の効果
黒鉛粉末及び微粒子状合成樹脂を主成分とする従来の継
目無し鋼管造管用潤滑剤は、マンドレルバーの表面温度
が高い(150℃以上)場合、付着性が悪く、均一な乾
燥皮膜が得られない。Effects of the Invention Conventional lubricants for seamless steel pipe manufacturing, which are mainly composed of graphite powder and fine-grained synthetic resin, have poor adhesion when the surface temperature of the mandrel bar is high (150°C or higher), resulting in a uniform dry film. I can't get it.
ところが、多塩基性高分子砒酸であるフミン酸、ニトロ
フミン酸及びリグニンスルホン酸の塩から選択された!
a又は2種以上の混合物を含有させた本発明の継目無し
鋼管造管用潤滑剤は、均一でかつ厚い乾燥皮膜を形成し
、良好な圧延潤滑性能を発揮する6したがって5本発明
の潤滑剤を使用することにより、ミル駆動電力の低減、
圧延の安定化などが可能となる。However, it was selected from salts of humic acid, nitrofumic acid, and ligninsulfonic acid, which are polybasic polymeric arsenic acids!
The lubricant for seamless steel pipe manufacturing of the present invention containing a or a mixture of two or more forms a uniform and thick dry film and exhibits good rolling lubrication performance.6 Therefore, the lubricant of the present invention By using mill drive power reduction,
This makes it possible to stabilize rolling.
第1図は、本発明の潤滑剤と従来技術の潤滑剤の付着性
を示すグラフである。FIG. 1 is a graph showing the adhesion of the lubricant of the present invention and the lubricant of the prior art.
Claims (2)
成分とする組成物に、多塩基性高分子量酸の塩を含有さ
せて、水中に分散してなることを特徴とする継目無し鋼
管造管用潤滑剤。(1) Seamless, characterized in that it is made by dispersing the salt of a polybasic high molecular weight acid in a composition whose main components are fine powder graphite and a water-insoluble fine particulate synthetic resin, and dispersing it in water. Lubricant for steel pipe manufacturing.
酸及びリグニンスルホン酸から選択された1種又は2種
以上の混合物である請求項1に記載の継目無し鋼管用潤
滑剤。(2) The lubricant for seamless steel pipes according to claim 1, wherein the polybasic high molecular weight acid is one or a mixture of two or more selected from humic acid, nitrofumic acid, and ligninsulfonic acid.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21362388A JPH0264196A (en) | 1988-08-30 | 1988-08-30 | Lubricant for producing seamless steel pipe |
CA000608941A CA1329802C (en) | 1988-08-30 | 1989-08-22 | Lubricant for the production of seamless steel pipes |
KR1019890012164A KR900003344A (en) | 1988-08-30 | 1989-08-25 | Improved lubricant for making seamless steel pipes |
EP89402368A EP0357508B1 (en) | 1988-08-30 | 1989-08-30 | Use of improved lubricant for the production of seamless steel pipes |
DE89402368T DE68910059T2 (en) | 1988-08-30 | 1989-08-30 | Use of lubricant to make seamless steel pipes. |
US07/400,918 US5030367A (en) | 1988-08-30 | 1989-08-30 | Water-dispersion lubricant of graphite, particulate resin and high molecular weight polybasic acid salt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21362388A JPH0264196A (en) | 1988-08-30 | 1988-08-30 | Lubricant for producing seamless steel pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0264196A true JPH0264196A (en) | 1990-03-05 |
JPH0536479B2 JPH0536479B2 (en) | 1993-05-31 |
Family
ID=16642230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21362388A Granted JPH0264196A (en) | 1988-08-30 | 1988-08-30 | Lubricant for producing seamless steel pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0264196A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006351220A (en) * | 2005-06-13 | 2006-12-28 | Matsushita Electric Ind Co Ltd | High-frequency heating apparatus |
JP2017165855A (en) * | 2016-03-16 | 2017-09-21 | 住鉱潤滑剤株式会社 | Water soluble lubricant composition |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57187395A (en) * | 1981-05-14 | 1982-11-18 | Nippon Kokan Kk <Nkk> | Lubricant for high temperature rolling |
JPS60240796A (en) * | 1984-05-15 | 1985-11-29 | Nippon Kokan Kk <Nkk> | Lubricant for production of seamless steel tube |
-
1988
- 1988-08-30 JP JP21362388A patent/JPH0264196A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57187395A (en) * | 1981-05-14 | 1982-11-18 | Nippon Kokan Kk <Nkk> | Lubricant for high temperature rolling |
JPS60240796A (en) * | 1984-05-15 | 1985-11-29 | Nippon Kokan Kk <Nkk> | Lubricant for production of seamless steel tube |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006351220A (en) * | 2005-06-13 | 2006-12-28 | Matsushita Electric Ind Co Ltd | High-frequency heating apparatus |
JP2017165855A (en) * | 2016-03-16 | 2017-09-21 | 住鉱潤滑剤株式会社 | Water soluble lubricant composition |
Also Published As
Publication number | Publication date |
---|---|
JPH0536479B2 (en) | 1993-05-31 |
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