JP2003073687A - Water-inmiscible processing lubricant composition for fixed abrasive grain wire saw - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-inmiscible processing lubricating composition which excels in cutting processing of a material other than a rare earth magnet by a fixed abrasive grain wire saw. SOLUTION: The water-inmiscible processing lubricant composition comprises at least one water-inmiscible base oil selected from a mineral oil, a hydrocarbon solvent, an ester compound, an alcoholic compound, and an α-olefin as the major component, and has a kinematic viscosity at 40 deg.C of 2.5-70.0 mm<2> /s. When the base oil is constituted of a mineral oil, a hydrocarbon based solvent, and an ester compound, as the ratio, the mineral oil is 20-80 wt.%; the hydrocarbon based solvent is 10-60 wt.%; and the ester compound is 1-40 wt.%. The composition can further contain a sulfur-containing compound and its content is preferably 0.01-40 wt.% of the composition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-insoluble processing oil composition for fixed abrasive wire saws, and more specifically, a water-insoluble processing oil agent for fixed abrasive wire saws used for cutting processing materials other than rare earth magnets. It relates to a composition.

[0002]

2. Description of the Related Art Brittle materials such as silicon, crystal, glass and ceramics, metallic materials such as cast iron, copper and aluminum,
For cutting processing materials such as plastic materials such as phenol resin, epoxy resin, and melamine resin, an outer peripheral edge grindstone, an inner peripheral edge grindstone, a band saw or wire saw using free abrasive grains, and a fixed abrasive grain band saw have been used. It was Cutting with an outer peripheral edge grinding wheel and an inner peripheral edge grinding wheel is difficult to deal with the increase in size of the processing material, and is not satisfactory in terms of work efficiency. In addition, cutting with a band saw or wire saw using loose abrasive particles has problems such as sludge adhering to a processing material or a machine tool to reduce work efficiency, and a step of cleaning the adhering sludge is required. It was To solve these problems, a fixed-abrasive wire saw in which abrasive grains are fixed to a metal wire or a non-metal wire by using electrodeposition or resin bond (see JP 2001-54850 A) has been developed to improve the working environment. Effects such as simplification of the cleaning process are seen. However, processing oils used for fixed-abrasive wire saws have hitherto been light oil (Journal of the Abrasive Processing Society, Vo.
l. 43, No. 10, 1999, Proceedings of Academic Conference of Abrasives Processing Society, 1996, p389, Proceedings of Academic Conference of Abrasive Processing Society, 2000, p285) or tap water (Abstract Processing Society of Japan, Vol43, No) .8,
Proceedings of the Abrasive Processing Society Academic Conference 1999, 19
1997, p369), and an oil suitable for cutting with a fixed-abrasive wire saw has not been developed. There is also a report using a base for dispersing loose abrasive grains (Proceedings of the Abrasive Processing Society Academic Lecture Meeting, 1997, p.
369), the effect has not been sufficiently increased.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above viewpoints, and provides a water-insoluble processed product composition suitable for cutting a processing material excluding a rare earth magnet with a fixed-abrasive wire saw. The purpose is to do.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted extensive studies on factors required for a processing oil composition for cutting with a fixed-abrasive wire saw, and as a result, the viscosity of the processing oil has a large effect on processing performance. It was found that there was an influence, and the present invention was completed. That is, the water-insoluble processing oil composition for fixed abrasive wire saw of the present invention is a water-insoluble processing oil composition for fixed abrasive wire saw used for cutting processing materials other than rare earth magnets, which is water-insoluble. Contains base oil as the main component and has a kinematic viscosity at 40 ° C of 2.5 to 70.0 mm.
It is characterized in that it is ² / s. The base oil may be at least one selected from mineral oils, hydrocarbon solvents, ester compounds, alcohol compounds and α-olefin compounds. In addition, the base oil is a mineral oil,
It is composed of a hydrocarbon solvent and an ester compound, and when the total of these is 100% by weight, the content of the mineral oil is 20 to 80% by weight, and the content of the hydrocarbon solvent is 10%.
˜60% by weight, and the content of the ester compound may be 1 to 40% by weight. Then, the present composition may further contain a sulfur-containing compound, and the content thereof may be 0.01 to 40% by weight of the present composition. Incidentally, as the processing material targeted by the present invention, brittle materials such as silicon, crystal, glass and ceramics,
It is a general processing material excluding rare earth magnets, such as metal materials such as cast iron, copper and aluminum, and plastic materials such as phenol resin, epoxy resin and melamine resin. The rare earth magnet is excluded from the processing target of the processing oil agent of the present invention.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail. The "base oil" is not particularly limited as long as it is water-insoluble, and examples thereof include mineral oils, hydrocarbon solvents, ester compounds, alcohol compounds and α-olefin compounds. The above-mentioned "mineral oil" includes dewaxing a lubricating oil fraction obtained by distilling crude oil under normal pressure or reduced pressure.
Examples include those purified by appropriately combining purification treatments such as hydrogenation, pickling, and clay treatment. Examples of this include spindle oil, machine oil and neutral oil.
Of these, spindle oil and neutral oil are preferred. Moreover, these can be used individually by 1 type or in combination of 2 or more types. Examples of the above-mentioned "hydrocarbon-based solvent" include those obtained by lightening the above lubricating oil fraction by thermal decomposition or catalytic cracking, and those obtained by liquefying a lower unsaturated compound such as butene and hexane as an oligomer. Further, it may be a hydrocarbon having 6 or more carbon atoms obtained by synthesis or a mixture thereof. These can be used alone or in combination of two or more.

Examples of the above-mentioned "ester compound" include natural fats and oils derived from animals and plants and synthetic esters. As the oils and fats, vegetable oils such as rapeseed oil, soybean oil, palm oil, olive oil, coconut oil, cottonseed oil and castor oil,
Animal oils such as beef tallow, pork oil and wool oil can be mentioned, but regenerated oils such as tall oil can also be used. Examples of synthetic esters include esters of monocarboxylic acids having 6 to 20 carbon atoms with monohydric or polyhydric alcohols. 6 to 2 carbon atoms
As the monocarboxylic acid of 0, straight chain saturated fatty acids such as caprylic acid, capric acid, lauric acid and stearic acid,
Linear unsaturated fatty acids such as oleic acid, linoleic acid and linolenic acid, branched fatty acids such as isononanoic acid and isostearic acid, hydroxy fatty acids such as 12-hydroxystearic acid and ricinoleic acid, cyclic such as cyclohexanoic acid and 4-methylcyclohexanoic acid Fatty acids, benzoic acid and t-
Aromatic carboxylic acids such as butylbenzoic acid and the like can be mentioned.
Examples of the monohydric alcohol include saturated or unsaturated monohydric alcohols having 1 to 20 carbon atoms such as methyl alcohol, ethyl alcohol, isopropyl alcohol, butyl alcohol, octyl alcohol, oleyl alcohol and isostearyl alcohol. As the polyhydric alcohol, neopentyl glycol, glycerin,
Examples include trimethylolpropane, pentaerythritol, and sorbitol. Among these ester compounds, the trioleic acid ester of trimethylolpropane and the tetraoleic acid ester of pentaerythritol are preferable. Moreover, these can be used individually by 1 type or in combination of 2 or more types.

Examples of the above-mentioned "alcohol compound" include monohydric or dihydric alcohols having 6 to 30 carbon atoms, oil-soluble glycols such as polypropylene glycol, polybutylene glycol and polyethylene glycol polypropylene glycol copolymer, and 1 to 30 carbon atoms. An oil-soluble polyoxyalkylene alkyl ether obtained by adding an alkylene oxide such as ethylene oxide and propylene oxide to a dihydric or dihydric alcohol can be used. Of these, the number of carbon atoms is 14-18
Of monohydric alcohols are preferred. Moreover, these can be used individually by 1 type or in combination of 2 or more types. As the above-mentioned "α-olefin compound", a linear or branched α-olefin having 6 to 50 carbon atoms such as 1-dodecene, 1-hexadecene and 1-octadecene can be used. Of these, 1-octadecene and 1
-Hexadecene is preferred. Moreover, these can be used individually by 1 type or in combination of 2 or more types.

The mineral oils, hydrocarbon solvents, ester compounds, alcohol compounds and α-olefin compounds exemplified above can be used alone or in combination of two or more. When two or more kinds are used in combination, a preferable combination is, for example, mineral oil, a hydrocarbon solvent and an ester compound, and the total of these is 1
When set to 00% by weight, each is 20 to 80% by weight (more preferably 30 to 70% by weight, further preferably 40 to
60% by weight), 10 to 60% by weight (more preferably 15% by weight)
.About.50% by weight, more preferably 20 to 40% by weight) and 1 to 40% by weight (more preferably 2 to 30% by weight, still more preferably 2.5 to 20% by weight).

The content of the above base oil as the main component of the present composition is preferably 60% by weight or more, more preferably 70% by weight or more, still more preferably 8% by weight based on the present composition.
It is 5% by weight or more. However, the upper limit is 100% by weight. If the content of the above base oil is too small, the required processing performance cannot be obtained, which is not preferable.

The water-insoluble processing oil composition for fixed-abrasive wire saw of the present invention may further contain a "sulfur-containing compound". By adding this sulfur-containing compound, more excellent processing performance can be obtained. The sulfur-containing compound is not particularly limited, but those generally used as extreme pressure additives are preferable. For example,
Sulfurized mineral oils, sulfurized fat oils such as sulfurized pork oil, sulfurized beef tallow and rapeseed oil, sulfurized fatty acids such as sulfurized oleic acid and sulfurized linoleic acid, sulfurized esters such as sulfurized methyl oleate and sulfurized methyl linoleate, alkyl disulfides and alkyls Examples thereof include polysulfides such as trisulfide. Other than these, sulfonates such as alkyl sulfonates and alkyl phenyl sulfonates, salts thereof, dithio compounds such as ZnDTP and ZnDTC, and the like can be mentioned. Of these, polysulfides and sulfurized esters are preferred. Also, these are 1
They may be used alone or in combination of two or more.

The content of the sulfur-containing compound is preferably 0.01 to 40% by weight, more preferably 0.05 to 30% by weight, based on 100% by weight of the composition. If it is less than 0.01% by weight, the effect of the sulfur-containing compound does not appear, and if it exceeds 40% by weight, the processing material or the machine tool may be corroded.

The kinematic viscosity of the water-insoluble processing oil composition for a fixed abrasive wire saw of the present invention at 40 ° C. is 2.5 to 7
0.0 mm ² / s, preferably 3.0 to 70.0
mm ² / s, more preferably 3.0~60.0mm ² /
s, and more preferably 3.0 to 55.0 mm ² / s. If it exceeds 70.0 mm ² / s, the temperature of the processing oil will increase greatly, and it will be difficult to control the size and shape of the thermal deformation of the processing material. If it is less than 2.5 mm ² / s, the cutting resistance will be large and the wire may break. There is. The above-mentioned kinematic viscosity is sufficient if the kinematic viscosity of the composition is within the above range. It does not need to be either.

In addition to the above base oil and sulfur-containing compound, the water-insoluble processing oil composition for fixed abrasive wire saw of the present invention comprises
As long as it does not adversely affect the target processing material such as corrosion and discoloration, or does not affect the stability of the system after mixing, such additives within the range that does not deteriorate the processing performance. Can be added and mixed. For example, a defoaming agent and an antioxidant may be used.

When silicon is cut under the conditions shown in the following examples using the water-insoluble processing oil composition for fixed abrasive wire saws of the present invention, the cutting speed is preferably 0.45 to 0.9 mm / min. , And more preferably 0.5
~ 0.8 mm / min, more preferably 0.55 to 0.
It can be 8 mm / min.

When carbon steel is cut under the conditions shown in the following examples using the water-insoluble working oil composition for fixed abrasive wire saw of the present invention, the cutting speed is preferably 0.55 to 0. 85 mm / min, more preferably 0.6 to 0.8 mm / min, still more preferably 0.65
It can be set to 0.8 mm / min.

When Bakelite is cut under the conditions shown in the following examples using the water-insoluble processing oil composition for fixed abrasive wire saws of the present invention, the cutting speed is preferably 1.1 to 1.8 mm / min. , And more preferably 1.
2 to 1.7 mm / min, more preferably 1.3 to 1.
It can be set to 7 mm / min.

[0017]

EXAMPLES The water-insoluble processing oil composition for fixed abrasive wire saws of the present invention will be described in detail below with reference to Examples and Comparative Examples. 1. Preparation of Water-Insoluble Processing Oil Agent Composition for Fixed Abrasive Wire Saw The processing oil agent compositions having the compounding ratios shown in Tables 1 to 6 were prepared (Examples 1 to 30 and Comparative Examples 1 to 9). The unit is parts by weight. The components used in Tables 1 to 6 are as follows. Mineral oil A; manufactured by Cosmo Oil Lubricants Co., industrial spindle oil Mineral oil B: manufactured by Mitsubishi Nisseki, trade name "Neutral oil 30" Hydrocarbon solvent A; manufactured by NOF Corporation, trade name "NAS"
4 ”Hydrocarbon-based solvent B; product name“ No. 0 Solvent ”manufactured by Nisseki Mitsubishi Corp.

The kinematic viscosity at 40 ° C. is measured according to JIS-K228.
According to 3, the measurement was performed using a Canon Fenske viscometer.

[0019]

[Table 1]

[0020]

[Table 2]

[0021]

[Table 3]

[0022]

[Table 4]

[0023]

[Table 5]

[0024]

[Table 6]

2. Performance Evaluation Single crystal silicon cutting (Examples 1 to 10 and Comparative Examples 1 to 1)
3) A single crystal silicon having a width of 200 mm, a height of 50 mm, and a length of 30 mm is used as a processing material, and a single wire at a wire linear velocity of 600 m / min and a work feed rate of 1 mm / min is used by using a multi-cutting machine (manufactured by Totsuna Kikai Seisakusho). The crystalline silicon was cut in the height direction. The cutting time and cutting speed at this time are also shown in Tables 1 and 2. Cutting of carbon steel (Examples 11 to 20, Comparative examples 4 to 6) Using a multi-cutting machine (manufactured by Totsuna Machinery Co., Ltd.) as a processing material, a carbon steel having a width of 20 mm, a height of 50 mm and a length of 100 mm was used. Carbon steel was cut in the height direction at a linear speed of 300 m / min and a work feed speed of 2 mm / min. The cutting time and cutting speed at this time are also shown in Tables 3 and 4. Bakelite cutting (Examples 21 to 30 and Comparative Example 7 to
9) Multi cutting machine (manufactured by Totsuna Machinery Co., Ltd.) using bakelite with width 50 mm, height 50 mm, and length 50 mm as processing material.
Was used to cut the bakelite in the height direction at a wire linear velocity of 300 m / min and a work feed rate of 2 mm / min. The cutting time and cutting speed at this time are also shown in Tables 5 and 6.

3. Effects of Examples From Table 2, Comparative Examples 1 and 2 have a kinematic viscosity outside the range of the present invention, a slow cutting speed, and poor workability. In addition, Comparative Example 3
Is an example containing a large amount of a sulfur-containing compound, and data could not be obtained because the wire was broken during the cutting of single crystal silicon. On the other hand, from Table 1, Examples 1 to 5 are examples in which the mineral oil, the hydrocarbon solvent, the ester, the alcohol and the α-olefin are used alone, and the kinematic viscosity is 1.8 to 4
Although it was a wide range of 8.3 mm ² / s, all exhibited excellent workability. Further, as in Examples 6 to 8, even if the kinematic viscosity of one or more of the components constituting the composition is outside the scope of the present invention, the kinematic viscosity of the composition is within the scope of the present invention. Excellent workability was exhibited by adjusting the content within. Examples 9 and 10 are examples containing a sulfur-containing compound, and Example 9 having a kinematic viscosity close to that of Example 6 has a cutting speed improved by 0.1 mm / min as compared with Example 6, and is the same as Example 8. The cutting speed of Example 10 having a kinematic viscosity was higher than that of Example 8.

Tables 3 and 4 and Tables 5 and 6 are working fluids having the same compositions as those in Tables 1 and 2, and the evaluation of cutting work of carbon steel and Bakelite using these is shown in Tables 1 and 2 above. The result showed almost the same tendency as the result shown in FIG.

[0028]

EFFECTS OF THE INVENTION The water-insoluble processing oil composition for fixed abrasive wire saws of the present invention has a good cutting speed when cutting processing materials other than rare earth magnets with a fixed abrasive wire saw, and is excellent as a processing oil composition. Shows excellent performance. Also,
By further containing a sulfur-containing compound, further excellent processing performance is exhibited.

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) C10M 105/14 C10M 105/14 105/34 105/34 105/38 105/38 135/04 135/04 135/06 135 / 06 135/10 135/10 135/18 135/18 135/22 135/22 137/10 137/10 A // B24B 27/06 B24B 27/06 D B28D 5/04 B28D 5/04 C C10N 10: 04 C10N 10:04 20:00 20:00 Z 20:02 20:02 30:06 30:06 40:22 40:22 (72) Inventor Shigeki Uemori 1580 Tabata, Samukawa-cho, Takaza-gun, Kanagawa Yushiro Kagaku Industrial Co., Ltd. Technical Center (72) Inventor Fumio Goto 1580 Tabata, Samukawa-cho, Takaza-gun, Kanagawa Yushiro Chemical Industry Co., Ltd. Technical Center (72) Inventor Hideki Ogawa 2-80, Hokita-cho, Sakai City, Osaka Stocks Company Allied Material Osaka Works (72) Inventor Masanori Nakai 2-80 Hotorikitacho, Sakai City, Osaka Prefecture Allied Material Co., Ltd. F-term (Reference) 3C058 AA05 CB03 DA02 D A03 3C069 AA01 BA06 BB03 BB04 CA01 CA04 CA11 DA06 EA01 EA02 4H104 BA02A BB02A BB04A BB32A BB34A BG02C BG04C BG10C BG12C BH07C DA02A DA06A EA02Z EA18Z FA02 LA03 PA23 RA01

Claims (4)

[Claims] 1. A water-insoluble processing oil composition for a fixed-abrasive wire saw used for cutting processing materials other than rare earth magnets, which contains a water-insoluble base oil as a main component and has a kinematic viscosity at 40 ° C. Is 2.5 to 70.0 mm ² / s, a water-insoluble working oil composition for a fixed abrasive wire saw. 2. The water-insoluble processing for a fixed-abrasive wire saw according to claim 1, wherein the base oil is at least one selected from mineral oils, hydrocarbon solvents, ester compounds, alcohol compounds and α-olefin compounds. Oil agent composition. 3. The base oil is composed of a mineral oil, a hydrocarbon solvent and an ester compound, and when the total amount thereof is 100% by weight, the content of the mineral oil is 20 to 80% by weight, and the hydrocarbon is The water-insoluble working oil composition for a fixed abrasive wire saw according to claim 2, wherein the content of the system solvent is 10 to 60% by weight, and the content of the ester compound is 1 to 40% by weight. 4. The water-insoluble material for a fixed-abrasive wire saw according to claim 1, further comprising a sulfur-containing compound, the content of which is 0.01 to 40% by weight of the present composition. Processing oil composition.