JPS5984987A - Rolling mill oil - Google Patents

Abstract

PURPOSE:To provide a rolling mill oil composed mainly of a reaction product of castor oil, etc. and a polyvalent epoxy compound, having excellent lubricating performance and applicable to a severe rolling process. CONSTITUTION:The objective rolling mill oil is composed mainly of the product obtained by the reaction of (A) one or more materials selected from (i) (hydrogenated) castor oil, (ii) (hydrogenated) castor oil added with alkylene oxide, (iii) a castor oil derivative derived by esterifying a part of the hydroxyl group of the component (i) or (ii) with a >=12C fatty acid, and (iv) a castor oil derivative obtained by the esterification reaction of (a) the carboxyl group of a dicarboxylic acid monoester derived from a hydroxyl compound having >=11C alkyl or alkenyl group and a dicarboxylic acid with (b) a part of the hydroxyl group of the component (i) or (ii) with (B) a polyvalent epoxy compound having 2-3 glycidyl groups in the molecule.

Description

[Detailed description of the invention] The present invention relates to rolling oil.

Palm/ll+ has traditionally been used as a rolling oil for steel sheets, but instead of that, beef tallow, pork fat, Nagasu Kujira Hideura Nato animal and plant fat, mineral oil, or a mixture of these oils are used as a base. And additives, Ura Shoku.”

It is widely used as a compound containing antioxidants, antioxidants, and surfactants.

On the other hand, the progress of rolling machinery equipment has progressed significantly, and with the increase in the size of mills, rationalization and precision of the rolling process are required, such as reducing the number of passes, increasing rolling speed, and increasing the standard accuracy of rolled products. As a result, the conditions for rolling 41j have become more severe, and palm ura and tallow-based rolling oils are
The current situation is that it is no longer possible to satisfy this condition, or that no alternative rolling oil has been found.

The present invention aims to provide a rolling surface that has a lubricating performance superior to that of conventional palm or tallow-based rolling surfaces and is satisfactory for the harsh rolling processes currently required. It is.

The rolling mill 411 of the present invention is composed of the following components.

The fAj group is Castor/113, or hydrogenated Himashiura (hereinafter referred to as Hydrogenated Castor 7113); the iBl group is Castor/Ura with alkylene oxide added (=J), or hydrogenated Castor +Cj group is fA+ or (castor oil derivative obtained by esterifying a part of the hydroxyl group of Bl with a fatty acid having 12 or more carbon atoms +D) group is a hydroxy compound having an alkyl or alkenyl group having 11 or more carbon atoms; A castor oil derivative obtained by an esterification reaction between a carboxyl group of a dicarboxylic acid monoester obtained from a dicarboxylic acid and a part of the hydroxyl group of (A) or (Bl).
, (B), tc+, +D+, the main component is a reaction product obtained by the reaction of at least one selected from the four groups and a polyvalent engineered polypoquin compound having two or three glycidyl groups in the molecule, The present invention relates to a metal porridge that is characterized by being used as it is, or by mixing animal and vegetable oils, minerals/111, surfactants, extreme pressure additives, etc. thereto.

Hydrogenated castor 411 in the present invention can be obtained by hydrogenating castor castor in a conventional manner. In addition, alkylene oxide is added to I; J and Mano/111 or Alkyre/Oki →
Hydrogenated castor/lIJ with nooid added is added to castor/lI+ or hydrogenated castor to alkylene, t=
Obtained by adding (=1) 1-lyte. Alkylene oxy→
2 to 100 mol (;I) of carbon atoms having 2 to 3 carbon atoms is used.

Furthermore, castor oil derivatives (hereinafter referred to as castor oil derivatives (C1)) obtained by reacting fA+ or iBl with fatty acids having 12 or more carbon atoms can also be obtained by a generally known esterification reaction. The castor oil derivative fc) used in the invention can be obtained by a dehydration esterification reaction between the hydroxyl group bonded to A+ or iBl and the fatty acid described in -, or by transesterification of A+ or iBl with a lower ester of the above fatty acid. It can also be obtained by reaction.However, this castor oil derivative (C1 is castor oil derivative FC + at least 1 # in the molecule at the end of the reaction).
# It is an essential condition that the hydroquinol group remains,
For 1 mole of (A) or (B) "1 fatty acid 05-2
Obtained by reacting moles.

Castor oil derivative of the present invention (carbon number 1 used to obtain C1)
2 or more fatty acids include saturated fatty acids such as lauric acid, myristic acid, valmitic acid, stearic acid, arachidic acid, hehenic acid, neo acids, side chain saturated fatty acids such as fatty acids obtained by the oxo method, oleic acid, Examples include unsaturated fatty acids such as linoleic acid, linuric acid, arachidonic acid, and ricinoleic acid.

(A) or (B
The castor oil derivative obtained by reacting C1 (hereinafter referred to as castor oil derivative (D)) is a castor oil derivative (C1) in which 1 mole of (A+ or (B) The essential condition for the castor oil derivative tD+ is that at least one ==#hydroquine, () remains in the molecule.

Also, castor oil derivatives (radical used to obtain D+, 15
The acid monoester is a hydroxy compound containing an alkylkenyl group having 11 or more carbon atoms and a dicarboxylic acid monoester. It is a compound obtained by reacting 1:1 heptanoic acid at a molar ratio of 1:1, and has one carboxyl group in its molecule. Hydroxo compounds having an alkyl or alkenyl group having 11 or more carbon atoms, such as Teha, lauryl alcohol, palmityl 7/lecol, cetanol, stearyl alcohol, oleyl alcohol, ethylene glycol oleate, 7' propylene glycol laurate, propylene glycol stearate 1., polyethylene glycol] (i Remitee 1~
, polyethylene glycol oleate, glycerin stearate, sorbitol laurate monolstearate, etc., and these hydroquino compounds to which alkylene oxide is added. .

Examples include so-called timer acids obtained by polymerizing dibasic carboxylic acids such as phosphoric acid, azelaic acid, sepanonic acid, maleic acid, fumaric acid, and itaconic acid, as well as unsaturated fatty acids.

Next, the reaction product of at least one selected from the four groups [A+, tB+, fc], fD+ and the polyvalent evoquino compound is selected from the four groups fA+, (13), fc], FD+. At least one type of compound with 2 clinodyl groups in the molecule.
Alternatively, it can be synthesized by a conventional method by reaction with a polyvalent epoxo compound having three epoxo compounds. Zunawaji (Al-(Due to a single addition reaction of a polyvalent epoxy compound to a hydroxol group bonded to a Di group compound, at least one species selected from (A) to fD+ group per mole) , obtained by reacting at 70 to 120°C at a ratio of 3 to 2 moles of a polyvalent epoxy compound, and crosslinked with a compound of group (A) to (D1) or a polyvalent epoxy compound to form a chain or network reaction. produce a product.

Examples of polyvalent epoxy compounds having two or three one chrycidyl group in the molecule used in the present invention include ethylene glycol diglycidyl ether, glycerin triglycidyl ether, adipic acid diglysodyl ester, succinic acid ngrinosol ester, and timer. Examples include acid noglynodyl ester, polyalkylene/glycol diglysonol ether, glycerin alkylene oxide triglycide/ether, and the like.

The reaction product of a polyepoxy compound selected from the fA1 to fD1 group has extremely high rolling performance even when used as it is in the rolling mill, or if necessary, It is also possible to mix and use other animal and vegetable oils, mineral oils, surfactants, and extreme pressure additives.

The present invention will be explained below with reference to Examples.

Example-1 941 parts of hydrogenated castor oil, 564 parts of oleic acid, 15 parts of para-toluenesulfonic acid (hereinafter referred to as FPTSA) N2
Reacted for 7 hours at 150-180℃ under a gas stream, and the acid value was 1.
8. A Himashiura derivative having a hydroxyl value of 405 was obtained.

To this Himashiura derivative, 174 parts of ethylene glycol trisodyl ether and 1 lard of boron trifluoride were added and reacted at 80°C for 6 hours to obtain an acid value of 0.
9. A reaction product with a hydroxyl value of 69.0 was obtained.

Example-2 1601 parts of hydrogenated castor oil with 15 moles of ethylene oxide added, 568 parts of isostearic acid, I) T
Add 20 parts of SA and react at 160 to 200°C for 6 hours.
A castor ura derivative having an acid value of 56 and a hydroxyl JJ value of 220 was obtained.

Example-3 Castor oil 313 with 50 moles of ethylene oxide added
Add 342 parts of ampic acid digrindyl ester to 5 parts and react at 80 to 100°C for 6 hours to obtain an acid value of 10 and a hydroxyl value of 48.
0 reaction product was obtained.

Example-4 935 parts of Castor All, 368 parts of maleic acid monooleyl ester, and 3 parts of PTSAI were added, and reacted in a N2 gas stream I at 150 to 180°C for 10 hours to produce castor +1+dionly with an acid value of 15 and a hydroxyl value of 862. I got it.

87 parts of ethylene glycol nitrogen ether was added to the i+I+ derivative and reacted at 80 to 100°C for 6111f to obtain a reaction product with an acid value of 10 and a hydroxyl value of 880.

The reaction products of Examples 1 to 4 were subjected to rolling performance tests as shown in Table 1 as intermediate products or blended products.

The friction coefficient (μ) and pressure resistance of Rolling Pool No. 4 to 4 were measured, and the results are shown in Table 2.

Further, for rolling holes No. 1 and 2, the rollers were applied as they were on the rolled 4Δ material, and for Nos. 3 and 4, J596 emulsion was applied, and the tests were conducted i-j. To rolled paulownia wood (=j
The amount of oil deposited was approximately 1 g/m2 for Nα1 to 4.

Based on the relationship shown in Table 1 and Table 2, rolling performance was calculated and shown in Figure II.

As a comparative sample, commercially available beef tallow-based rolling/111 was used.

The test method for the lubricating oil for rolling oil for steel plates of the present invention is as described in Jiki.

Seating friction coefficient test method Sota type pendulum type oil tester N-II type load carrying capacity test method Shell type high speed four ball friction tester Rolling test method Rolling mill Two-four roll type rolling machine r) - Claw /l / diameter 150 mm Ii714
140 in 0 mm backup roll diameter 250 mm
mm roll Moon-like nichrome steel roll circumferential speed: 30 m/min Rolling material: 5pc-c thickness 0.60 mm x 11] 50 mm x length 150 mm Measuring method of rolling performance Steel plate before rolling with 5 Q mm spacing ( fl), two lines were drawn, the lines were rolled, the distance (12) after rolling was determined to be /1111, and the rolling reduction was determined by the following formula.

Further, the rolling load (ton) at that time was measured using a load cell.

[Brief explanation of the drawing]

The drawings show the rolling performance of Examples and Comparative Examples by rolling load (t, o
There is a comparison diagram of LL ductility shown by the relationship between n) and rolling reduction (to).

Claims (1)

[Claims] Himashiura or hydrogenated Himashiura (B) as the +Al group; Himashiura with alkylene oxide (=1 added) as the group, or hydrogenated Himashiura with alkylene oxide added as the Fe2 group, iA+ or (Bl A dicarboxylic acid obtained from a hydroxy compound having an alkyl or alkenyl group having 11 or more carbon atoms and a dicarboxylic acid as a Himanura derivative iDi group obtained by esterifying a part of the hydroxyl group of the hydroxyl group with this fatty acid having 12 or more carbon atoms. The above +A+ castor ura derivative obtained by an esterification reaction between the carboxyl group of an acid monoester and a part of the hydroxyl group of +A+ or (B)
, (B), (C), ■) and a polyvalent epoxy compound having two or three Grindyl groups in the molecule. Use it as is, or add animal or vegetable oil, mineral oil, or surfactant to it as needed! A metal rolling oil characterized by being used in combination with a single agent, an extreme pressure additive, etc.