JP2007077216A - Cold rolling oil for steel plate - Google Patents
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Abstract
Description
本発明は、鋼板（普通鋼板、ステンレス鋼板、電磁鋼板等）の鋼板用冷間圧延油に関し,詳しくは、冷間圧延操業における消費電力の低減、表面清浄度向上, 圧延油原単位の低減、安定操業に寄与する鋼板用冷間圧延油に関するものである。 The present invention relates to cold rolling oil for steel plates (regular steel plates, stainless steel plates, electromagnetic steel plates, etc.). Specifically, it reduces power consumption in cold rolling operations, improves surface cleanliness, reduces rolling oil intensity, The present invention relates to cold rolling oil for steel plates that contributes to stable operation.
従来の冷間圧延油は、鉱物油、動植物油脂及び合成エステル等の基油の１種または２種以上に、ノニオン活性剤、アニオン活性剤、カチオン活性剤、防錆剤、脂肪酸、極圧剤、酸化防止剤等を適宜組み合わせて、水で稀釈し、所定濃度のエマルジョンとして使用されるのが主流である。
近年の圧延設備、技術の急速な進歩により、圧延速度の高速化、大量生産化がはかられ、圧延油に対する要求も、益々苛酷になってきていて、その要求に充分対応できる圧延油の開発が望まれているのが現状である。
Conventional cold rolling oils include one or more base oils such as mineral oils, animal and vegetable oils and synthetic esters, nonionic active agents, anionic active agents, cationic active agents, rust inhibitors, fatty acids, extreme pressure agents. In general, an antioxidant is appropriately combined, diluted with water, and used as an emulsion having a predetermined concentration.
With the rapid progress of rolling equipment and technology in recent years, the rolling speed has been increased and mass production has been promoted, and the demand for rolling oil has become increasingly severe, and the development of rolling oil that can fully meet the demand has been developed. This is the current situation.
これに関して、特に合成エステル（モノ、ジ、トリエステル）を用いたものとして、特開昭 60-60193号公報、両性高分子化合物、及びＨＬＢ価12以上のノニオン活性剤を用いたものとして、特開昭60-158297号公報、2級アミンと不飽和脂肪酸の重縮合物を用いたものが、特開平０７−３１００８６号公報に記載されている。
しかし、付着効率を向上させるためノニオン活性剤でＨＬＢや添加量を調整し、エマルジョン粒径を大きくする手段がとられているが、油原単位の増加をまねき、不経済である。また粒径を大きくし過ぎると潤滑過多をまねき、スリップして正常な圧延が出来ないという難点がある。一方、エマルジョン粒径を小さくすると付着効率が悪くなり、潤滑不足による焼付きや、張力・板厚変動に伴う振動現象が起こる場合がある。
In this regard, in particular, those using synthetic esters (mono, di, triester), Japanese Patent Application Laid-Open No. 60-60193, amphoteric polymer compounds, and nonionic activators having an HLB value of 12 or more Japanese Laid-Open Patent Publication No. 60-158297 and a polycondensate of a secondary amine and an unsaturated fatty acid are described in JP-A-07-310086.
However, in order to improve the adhesion efficiency, measures are taken to increase the emulsion particle size by adjusting the HLB and the addition amount with a nonionic activator, but this is uneconomical because it increases the oil unit. Further, if the particle size is made too large, excessive lubrication is caused, and there is a drawback that normal rolling cannot be performed due to slipping. On the other hand, if the emulsion particle size is reduced, the adhesion efficiency is deteriorated, and seizure due to insufficient lubrication and vibration phenomena associated with fluctuations in tension and plate thickness may occur.
またカチオン性高分子化合物を用いた圧延油も特開昭６０−２０３６９９号公報に提唱されているが、摩耗粉による乳化変動が大きく、頻繁に乳化・粒径調整が必要で作業性が劣る欠点が見られた。加えて、対イオンに硫酸イオン、硝酸イオン、塩素イオン、リン酸イオン、ホウ酸イオン等のアニオンが使用されるので、錆に対する問題が常に付きまとう欠点がある。 A rolling oil using a cationic polymer compound is also proposed in Japanese Patent Application Laid-Open No. 60-203699. However, the emulsification fluctuation due to wear powder is large, and the workability is poor because frequent emulsification and particle size adjustment are required. It was observed. In addition, since anions such as sulfate ions, nitrate ions, chlorine ions, phosphate ions, and borate ions are used as counter ions, there is a drawback that problems with rust are always attached.
本発明は、従来の圧延油では解決できなかった課題を解決することにある。即ち、乳化を安定にし、均一な付着性を有し、且つ付着効率を高めながらも、圧延油原単位の低減効果を示し、苛酷な圧延条件に耐え得る圧延油を提供することにある。 An object of the present invention is to solve a problem that cannot be solved by a conventional rolling oil. That is, it is to provide a rolling oil that stabilizes emulsification, has uniform adhesion, and improves the adhesion efficiency, while exhibiting the effect of reducing the rolling oil intensity and capable of withstanding severe rolling conditions.
本発明は、特定の高分子化合物を用いて、圧延油エマルジョンの粒径をある一定範囲に保ち、ロール、被圧延材に均一に付着させることを可能ならしめて、高潤滑性を示し、圧延油原単位の低減効果がえられる圧延油を開発するに至った。 The present invention uses a specific polymer compound to maintain the particle size of a rolling oil emulsion within a certain range, and can uniformly adhere to a roll and a material to be rolled, exhibiting high lubricity, We have developed a rolling oil that can reduce the basic unit.
即ち、基油が鉱物油、動植物油脂及び液状合成油の１種又は２種以上に、α−オレフィン−無水マレイン酸共重合体の部分エステル（分子量10,000~50,000）を0.1~10重量％用い、そのα−オレフィン−無水マレイン酸共重合体とエステル化するために供されるアルコールがアルキル、アリル又はアリールアルキレングリコールである組成物を鋼板用冷間圧延油組成物として用いることにより、前記課題を克服するに至った。尚上記部分エステルとは、ハーフエステル（モノエステル）を意味する。 That is, 0.1 to 10% by weight of a partial ester (molecular weight 10,000 to 50,000) of an α-olefin-maleic anhydride copolymer is used as one or more of mineral oil, animal and vegetable oils and liquid synthetic oils, By using a composition in which the alcohol provided for esterification with the α-olefin-maleic anhydride copolymer is alkyl, allyl or arylalkylene glycol as a cold rolling oil composition for steel sheet, It came to overcome. The partial ester means a half ester (monoester).
さらに詳しくは、炭素原子数8~18、好ましくは12〜14のα−オレフィンと無水マレイン酸の１：５〜５：１のモル比、好ましくは１：２〜２：１の共重合体のアルキル、アリル又はアリールアルキレングリコールの部分エステルを圧延油組成物中0.1~10重量％、好ましくは0.5~5.0重量％含有せしめることにより、前記課題を解決できることが本発明者の研究により判った。
また、炭素原子数8以下のα−オレフィンと無水マレイン酸共重合体の当該アルキル、アリル又はアリールアルキレングリコールの部分エステルは親油性に乏しく、圧延油組成物が濁り、時には沈降物を生成して好ましくない。また、炭素原子数20以上のα−オレフィンと無水マレイン酸酸共重合体の誘導体では、生成物が固体となり、本発明圧延油組成物には適さない。
More specifically, the molar ratio of the α-olefin having 8 to 18 carbon atoms, preferably 12 to 14 and maleic anhydride is 1: 5 to 5: 1, preferably 1: 2 to 2: 1. The present inventors have found that the above problems can be solved by adding 0.1 to 10% by weight, preferably 0.5 to 5.0% by weight, of a partial ester of alkyl, allyl or arylalkylene glycol in the rolling oil composition.
Moreover, the partial ester of the alkyl, allyl or arylalkylene glycol of the α-olefin and maleic anhydride copolymer having 8 or less carbon atoms has poor lipophilicity, the rolling oil composition becomes cloudy, and sometimes precipitates are formed. It is not preferable. In addition, a derivative of an α-olefin having 20 or more carbon atoms and a maleic anhydride copolymer is not suitable for the rolling oil composition of the present invention because the product becomes a solid.
アルキル、アリル又はアリールアルキレングリコールの具体例としては、メチルグリコール、メチルジグリコール、メチルトリグリコール、イソプロピルグリコール、ブチルグリコール、ブチルジグリコール、ブチルトリグリコール、ヘキシルグリコール、２−エチルヘキシルジグリコール、アリルグリコール、フェニルグリコール、ベンジルジグリコール、メチルプロピレンジグリコール、プロピルプロピレンジグリコール、ブチルプロピレングリコール、フェニルプロピレングリコール等が挙げられ、好ましくは、メチルグリコール、メチルジグリコール、ブチルグリコール、ブチルジグリコール、２−エチルヘキシルジグリコール、ベンジルジグリコール、プロピルプロピレンジグリコールである。 Specific examples of alkyl, allyl or aryl alkylene glycol include methyl glycol, methyl diglycol, methyl triglycol, isopropyl glycol, butyl glycol, butyl diglycol, butyl triglycol, hexyl glycol, 2-ethylhexyl diglycol, allyl glycol, Phenyl glycol, benzyl diglycol, methyl propylene diglycol, propyl propylene diglycol, butyl propylene glycol, phenyl propylene glycol and the like can be mentioned, preferably methyl glycol, methyl diglycol, butyl glycol, butyl diglycol, 2-ethylhexyl diglycol Glycol, benzyl diglycol, propylpropylene diglycol.
本発明に於いて使用される基油としては、従来からこの種の圧延油組成物に使用されてきたものがいずれも使用でき、その代表例として具体的には、例えばスピンドル油、マシン油、タービン油、シリンダー油等の鉱物油；鯨油、牛脂、豚油、ナタネ油、ヒマシ油、ヌカ油、パーム油、ヤシ油等の動植物油脂；牛脂、ヒマシ油、ヤシ油等から得られる脂肪酸及び合成脂肪酸と炭素原子数１〜２２の脂肪族１価アルコール、エチレングリコール、ネオペンチルグリコール、トリメチロールプロパン、ペンタエリスリトール等とのエステルである合成エステル類が挙げられる。 As the base oil used in the present invention, any of those conventionally used in this type of rolling oil composition can be used. Specific examples thereof include spindle oil, machine oil, Mineral oils such as turbine oil and cylinder oil; animal and plant oils such as whale oil, beef tallow, pig oil, rapeseed oil, castor oil, nuka oil, palm oil, coconut oil; fatty acids obtained from beef tallow, castor oil, coconut oil, etc. Examples include synthetic esters that are esters of fatty acids and C1-C22 aliphatic monohydric alcohols, ethylene glycol, neopentyl glycol, trimethylolpropane, pentaerythritol, and the like.
本発明の圧延油組成物には、上記成分のほか、必要に応じて公知の各種添加剤、例えば極圧剤、油性向上剤、酸化防止剤、防錆剤等を添加する事ができる。 In addition to the above-mentioned components, various known additives such as extreme pressure agents, oiliness improvers, antioxidants, rust inhibitors and the like can be added to the rolling oil composition of the present invention as necessary.
極圧剤としては、トリクレジルフォスファイト、ジアルキルジチオリン酸亜鉛等が、油性向上剤としては、オレイン酸、ステアリン酸、ダイマー酸などの脂肪酸、酸化防止剤としては、２,４ジｔ-ブチルp-クレゾール等のフェノール系化合物、フェニルα-ナフチルアミン等の芳香族アミン等が、防錆剤としては、例えばアルケニルコハク酸及びその誘導体、オレイン酸等の脂肪酸、ソルビタンモノオレエート等のエステル、その他のアミン類がそれぞれ例示される。本発明の組成物を使用するに際しては、従来方法が広くそのまま適用される。 Examples of extreme pressure agents include tricresyl phosphite and zinc dialkyldithiophosphate, oiliness improvers include fatty acids such as oleic acid, stearic acid, and dimer acid, and antioxidants include 2,4 di-t-butyl. Phenol compounds such as p-cresol, aromatic amines such as phenyl α-naphthylamine, etc., as rust inhibitors, for example, alkenyl succinic acid and its derivatives, fatty acids such as oleic acid, esters such as sorbitan monooleate, etc. Each of these amines is exemplified. When using the composition of the present invention, conventional methods are widely applied as they are.
本発明の冷間圧延油組成物は、従来の圧延油には見られない付着能力を有し、ロールや被圧延材に均一な被膜を形成し、発生鉄粉による乳化変動もなく、高潤滑性を示した。しかも、乳化変動がないということは、余分な圧延油の補給が不必要となり、油原単位が低い経済的にも優位な圧延油を提供することが可能になった。 The cold rolling oil composition of the present invention has an adhesion capability not found in conventional rolling oils, forms a uniform film on a roll or a material to be rolled, has no emulsion fluctuation due to generated iron powder, and has high lubrication Showed sex. In addition, the fact that there is no fluctuation in emulsification makes it unnecessary to supply extra rolling oil, making it possible to provide an economically advantageous rolling oil with a low oil unit.
発明を理解し易くするために、以下に合成例たる参考例を示し、それと同様の方法で製造された特定化合物を用いての実施例並びに比較例を示して本発明を具体的に説明するが、下記の実施例は本発明を何ら制限するものではない。但し、下記実施例に於いて使用した特定高分子化合物Ａ〜Ｊは夫々次のものを示す。 In order to facilitate understanding of the invention, reference examples as synthesis examples are shown below, and the present invention will be specifically described with reference to examples and comparative examples using specific compounds produced by the same method. The following examples do not limit the present invention. However, the specific polymer compounds A to J used in the following examples are as follows.
＜参考例＞
温度計、撹拌機、逆流冷却管を取り付けた反応容器にキシレン５００ｍｌ、炭素原子数１２〜１４のα−オレフィンと無水マレイン酸の共重合体（平均分子量１２，０００）１４８．８ｇ、ブチルジグリコール７３ｇを仕込み、１００〜１５０℃にて４〜５時間反応させる。その後減圧下にキシレンを留去し、淡褐色粘稠反応物を得た。平均分子量１８，１００。
<Reference example>
In a reaction vessel equipped with a thermometer, a stirrer, and a reverse flow condenser, 500 ml of xylene, 148.8 g of an α-olefin having 12 to 14 carbon atoms and maleic anhydride (average molecular weight 12,000), butyl diglycol 73 g is charged and reacted at 100 to 150 ° C. for 4 to 5 hours. Thereafter, xylene was distilled off under reduced pressure to obtain a light brown viscous reaction product. Average molecular weight 18,100.
特定高分子化合物
Ａ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のメチルグリ コール部分エステル 平均分子量＝15,000
Ｂ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のメチルジグ
リコール
部分エステル 平均分子量＝16,500
Ｃ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のブチルグリ コール
部分エステル 平均分子量＝16,600
Ｄ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のブチルジグ リコール
部分エステル 平均分子量＝18,100
Ｅ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体の２−エチヘ キシル
ジゴリコール部分エステル 平均分子量＝20,200
Ｆ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のオクチルオ クタエチ
レングリコール部分エステル 平均分子量＝31,000
Ｇ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のアリルグリ コール
部分エステル 平均分子量＝16,000
Ｈ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のベンジルジ グリ
コール部分エステル 平均分子量＝19,000
Ｉ：C12〜14のα-オレフィンと無水マレイン酸との１：１モル比共重合体のプロピルプ ロピレン
ジグリコール部分エステル 平均分子量＝17,600
Ｊ：C12〜14のα-オレフィンと無水マレイン酸との１：２モル比共重合体のブチルジグ リコール
部分エステル 平均分子量＝11,000
Specific polymer compound
A: Methyl glycol partial ester of 1: 1 molar ratio copolymer of C 12-14 α-olefin and maleic anhydride Average molecular weight = 15,000
B: C 12 to 14 of α- olefin and 1 of maleic anhydride: 1 mole ratio copolymer of Mechirujigu recall partial esters average molecular weight = 16,500
C: Butyl glycol partial ester of 1: 1 molar ratio copolymer of C 12-14 α-olefin and maleic anhydride Average molecular weight = 16,600
D: Butyl diglycol partial ester of 1: 1 molar ratio copolymer of C 12-14 α-olefin and maleic anhydride Average molecular weight = 18,100
E: 2-ethihexyl diglycol partial ester of 1: 1 molar ratio copolymer of C 12-14 α-olefin and maleic anhydride Average molecular weight = 20,200
F: Octyloctaethylene glycol partial ester of 1: 1 molar ratio copolymer of α-olefin of C 12-14 and maleic anhydride Average molecular weight = 31,000
G: Allyl glycol partial ester of 1: 1 molar ratio copolymer of C 12-14 α-olefin and maleic anhydride Average molecular weight = 16,000
Benzyldiglycol partial ester of 1: 1 molar ratio copolymer of H: C 12-14 α-olefin and maleic anhydride average molecular weight = 19,000
I: Propylpropylene diglycol partial ester of 1: 1 molar ratio copolymer of α-olefin of C 12-14 and maleic anhydride Average molecular weight = 17,600
J: Butyldiglycol partial ester of a 1: 2 molar ratio copolymer of C 12-14 α-olefin and maleic anhydride Average molecular weight = 11,000
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with the predetermined components shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
上記特定高分子化合物を用い、表1に示す所定の成分と所定の配合量で配合して、圧延油組成物を調製した。表中の数値は重量％を示す。かくして得られた各組成物について、各種特性を測定した。この結果を表2並びに図１〜７に示す。但し、各種特性は夫々次の方法で測定した。 A rolling oil composition was prepared using the specific polymer compound described above and blended with a predetermined component shown in Table 1 in a predetermined blending amount. The numerical values in the table indicate% by weight. Various properties of each composition thus obtained were measured. The results are shown in Table 2 and FIGS. However, various characteristics were measured by the following methods.
＜付着試験＞
1.6×80×100mmの酸洗板を用い、本発明圧延油２％エマルジョンを8000rpm×3min攪拌作製し、ダル圧延４パス（総圧下率20%）後、水切りして風乾（24時間）し、秤量してＷ１を測定する。次いでトリクレンで洗浄して秤量してＷ２を測定する。
付着量（mg/m2）＝Ｗ１−Ｗ２(mg)/圧延後の表面積（m2）
<Adhesion test>
Using a pickling plate of 1.6 x 80 x 100 mm, a 2% emulsion of the present invention is prepared by stirring at 8000 rpm x 3 min. After 4 passes of dull rolling (total rolling reduction 20%), drained and air dried (24 hours). weighed to measure the W 1. Then measuring the W 2 are weighed and washed with trichlorethylene.
Adhering amount (mg / m 2 ) = W 1 −W 2 (mg) / surface area after rolling (m 2 )
＜圧延試験＞
二段式圧延機を用いて、下記条件にて3パス圧延し、圧率下75％時点に於けるトータル圧延荷重（TON数）を測定し、下記式による圧延相対比を求めた。
＊圧延条件
圧延材料：酸洗鋼板（SPHC）厚さ2.2mm×巾50mm×長さ500mm
圧延速度：13m/min
圧延ロール：直径150mm、胴長200mmブライトロール
クーラント温度：50〜55℃
クーラント濃度：５％エマルジョン
パススケジュール：3パス
本発明圧延油の圧延荷重（TON数）
＊圧延相対比＝ 比較例1の圧延荷重（TON数）
<Rolling test>
Using a two-stage rolling mill, three-pass rolling was performed under the following conditions, the total rolling load (TON number) at the time of 75% under the pressure ratio was measured, and the rolling relative ratio was calculated according to the following formula.
* Rolling conditions Rolling material: Pickled steel plate (SPHC) thickness 2.2mm x width 50mm x length 500mm
Rolling speed: 13m / min
Rolling roll: Diameter 150mm, trunk length 200mm Bright roll Coolant temperature: 50 ~ 55 ℃
Coolant concentration: 5% emulsion Pass schedule: 3 passes
Rolling load of this invention rolling oil (TON number)
* Rolling relative ratio = Rolling load of Comparative Example 1 (TON number)
＜鋼板明度試験＞
試験圧延した鋼板表面に市販メンテングテープを貼り付け、次いで剥離し、該テープを標準白色台紙に貼り付けた表面を日本電色工業製色差計ND-101D型でその明度を測定した。完全黒色を０、標準白色台紙の明度を85として求める。
<Steel lightness test>
A commercially available maintenance tape was applied to the surface of the test rolled steel sheet, and then peeled off. The surface of the tape attached to a standard white mount was measured for its brightness with a color difference meter ND-101D manufactured by Nippon Denshoku Industries Co., Ltd. Determine the complete black as 0 and the brightness of the standard white mount as 85.
＜劣化テスト＞
本発明圧延油（３％エマルジョン）を下記[図７]に示す循環劣化試験機で７日間劣化試験を行い、試験前後の粒径分布をベックマン・コールターMultisizerで測定した。
但し図７中１はタンク（液温55±５℃）、２はフィルター、３はポンプ（25 l /min）、４は回転ドラム（30φcm×20cm）を示す。
この回転ドラム４中には1/2inch鋼球ボール150個、2cm×2cm×1cm鋳物ブロック8個を内在せしめ、115rpmで回転するものである。
<Deterioration test>
The rolling oil of the present invention (3% emulsion) was subjected to a deterioration test for 7 days with a circulation deterioration tester shown in FIG. 7 below, and the particle size distribution before and after the test was measured with a Beckman Coulter Multisizer.
In FIG. 7, 1 is a tank (liquid temperature 55 ± 5 ° C.), 2 is a filter, 3 is a pump (25 l / min), and 4 is a rotating drum (30 φcm × 20 cm).
This rotating drum 4 contains 150 1/2 inch steel ball balls and 8 casting blocks of 2 cm × 2 cm × 1 cm, and rotates at 115 rpm.
リン系極圧剤＊２：トリクレジルフォスファイト
酸化防止剤＊３：２，４ジｔ−ブチルｐ−クレゾール
防錆剤ａ：ドデセニルコハク酸
防錆剤ｂ：ペンタデセニルコハク酸モノイソプロピルエステル
ホ゜リオキシエチレンアルキルエーテル＊４：トリデシルアルコールエチレンオキサイド４モル付加物
Phosphorus extreme pressure agent * 2: tricresyl phosphite antioxidant * 3: 2,4 di-t-butyl p-cresol rust inhibitor a: dodecenyl succinic acid rust inhibitor b: pentadecenyl succinic acid monoisopropyl ester Polyoxyethylene alkyl ether * 4: Tridecyl alcohol ethylene oxide 4 mol adduct
本発明組成物の特性測定結果から明らかなように、本発明組成物は４８％〜９２％付着量が向上し、それに伴い、潤滑性も２％〜１０％向上している。このことは、消費電力の低減に繋がる。又、鋼板明度の試験結果から、本発明組成物は比較例より圧延後の鋼板表面が綺麗であることが判る。劣化試験前後の粒径分布の変化からみても、本発明組成物は変化が少なく、鉄粉が生成混入しても、乳化性が安定していることが判る。乳化変動がないと言うことは、均一付着が可能で圧延スピードの高速化にも対応でき、圧延荷重変動が少なく、油原単位の低減にも繋がることが判る。 As is apparent from the measurement results of the properties of the composition of the present invention, the adhesion amount of the composition of the present invention is improved by 48% to 92%, and accordingly, the lubricity is also improved by 2% to 10%. This leads to a reduction in power consumption. From the test results of the lightness of the steel sheet, it can be seen that the surface of the steel sheet after rolling of the composition of the present invention is clean from the comparative example. It can be seen from the change in the particle size distribution before and after the deterioration test that the composition of the present invention has little change and the emulsifiability is stable even when iron powder is generated and mixed. The fact that there is no fluctuation in emulsification means that uniform adhesion is possible and that it is possible to cope with an increase in rolling speed, there is little fluctuation in rolling load, and this leads to a reduction in oil intensity.
本発明金属圧延油組成物を、水に稀釈して２〜５％のエマルジョンを作製して、循環しながら圧延ロール、被圧延材の間隙にスプレー給油することにより、荷重変動もなく、消費電力、油原単位を低減できる。 The metal rolling oil composition of the present invention is diluted in water to produce a 2 to 5% emulsion, and spray oil is supplied to the gap between the rolling roll and the material to be rolled while circulating. , Oil unit consumption can be reduced.
１・・・タンク
２・・・フィルター
３・・・ポンプ
４・・・回転ドラム
DESCRIPTION OF SYMBOLS 1 ... Tank 2 ... Filter 3 ... Pump 4 ... Rotary drum
Claims (3)
R3はC2〜C4の直鎖又は分岐アルキル基を、m は1〜10の整数を示す。） The cold for steel plate according to claim 1, wherein the alcohol provided for esterification with the α-olefin-maleic anhydride copolymer is an alkyl, allyl or arylalkylene glycol represented by the following general formula [Chemical Formula 2]. Rolling oil composition.
R 3 represents a C 2 to C 4 linear or branched alkyl group, and m represents an integer of 1 to 10. )
Priority Applications (1)
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| JP2005264596A JP2007077216A (en) | 2005-09-13 | 2005-09-13 | Cold rolling oil for steel plate |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2005264596A JP2007077216A (en) | 2005-09-13 | 2005-09-13 | Cold rolling oil for steel plate |
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| JP2007077216A true JP2007077216A (en) | 2007-03-29 |
Family
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010248329A (en) * | 2009-04-14 | 2010-11-04 | Nippon Steel Corp | Cold-rolling oil for steel plate and cold-rolling method |
| WO2018007375A1 (en) | 2016-07-07 | 2018-01-11 | Basf Se | Copolymers as additives for fuels and lubricants |
| WO2018108534A1 (en) * | 2016-12-15 | 2018-06-21 | Basf Se | Polymers as additives for fuels |
| US11078418B2 (en) | 2016-07-05 | 2021-08-03 | Basf Se | Corrosion inhibitors for fuels and lubricants |
| US11085001B2 (en) | 2015-07-16 | 2021-08-10 | Basf Se | Copolymers as additives for fuels and lubricants |
| WO2021215474A1 (en) * | 2020-04-23 | 2021-10-28 | 日本製鉄株式会社 | Cold rolling pretreatment composition and cold rolling method |
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| JPS5861111A (en) * | 1981-09-17 | 1983-04-12 | アクゾ・エヌ・ヴエ− | Copolymer of alpha, beta-unsaturated dicarboxylic acid ester and alpha-olefin, manufacture and lubricant agent comprising same |
| JPH05222390A (en) * | 1992-02-14 | 1993-08-31 | Sumitomo Metal Ind Ltd | Rust-proofing oil |
| JPH1046184A (en) * | 1996-08-06 | 1998-02-17 | Daido Kagaku Kogyo Kk | Water-soluble lubricant for metal plastic working |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5861111A (en) * | 1981-09-17 | 1983-04-12 | アクゾ・エヌ・ヴエ− | Copolymer of alpha, beta-unsaturated dicarboxylic acid ester and alpha-olefin, manufacture and lubricant agent comprising same |
| JPH05222390A (en) * | 1992-02-14 | 1993-08-31 | Sumitomo Metal Ind Ltd | Rust-proofing oil |
| JPH1046184A (en) * | 1996-08-06 | 1998-02-17 | Daido Kagaku Kogyo Kk | Water-soluble lubricant for metal plastic working |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010248329A (en) * | 2009-04-14 | 2010-11-04 | Nippon Steel Corp | Cold-rolling oil for steel plate and cold-rolling method |
| US11085001B2 (en) | 2015-07-16 | 2021-08-10 | Basf Se | Copolymers as additives for fuels and lubricants |
| US11078418B2 (en) | 2016-07-05 | 2021-08-03 | Basf Se | Corrosion inhibitors for fuels and lubricants |
| WO2018007375A1 (en) | 2016-07-07 | 2018-01-11 | Basf Se | Copolymers as additives for fuels and lubricants |
| WO2018108534A1 (en) * | 2016-12-15 | 2018-06-21 | Basf Se | Polymers as additives for fuels |
| US10947467B2 (en) | 2016-12-15 | 2021-03-16 | Basf Se | Polymers as additives for fuels |
| US11566196B2 (en) | 2016-12-15 | 2023-01-31 | Basf Se | Polymers as additives for fuels |
| WO2021215474A1 (en) * | 2020-04-23 | 2021-10-28 | 日本製鉄株式会社 | Cold rolling pretreatment composition and cold rolling method |
| JP2021172718A (en) * | 2020-04-23 | 2021-11-01 | 日本製鉄株式会社 | Pretreatment composition for cold rolling and cold rolling method |
| JP7057951B2 (en) | 2020-04-23 | 2022-04-21 | 日本製鉄株式会社 | Cold rolling pretreatment composition and cold rolling method |
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