CN103254985B - A kind of aqueous cutting fluid and preparation technology thereof - Google Patents

Abstract

The present invention relates to a kind of metal working fluid, it is made up of following parts by weight of component: oleic acid 20-40%, polyoxyethylene glycol 10-15%, primary isoamyl alcohol 5-10%, trolamine 10-15%, boric acid 0.5-1%, urea 10-15%, sulfuric acid 0.5-1%, tertiary sodium phosphate 5-10%, Sodium Benzoate 1-5%, sodium carbonate 3-5%, benzotriazole 0.1-0.3%.This metal working fluid forms the lubricant film of adsorptivity between metallic surface and cutter; reduce the friction of cutter front and rear surfaces with bonding, reduce and cut heat seal cutting resistance, and the protective membrane of isolation oxygen can be formed in metallic surface; improve cutter quality, extend cutter duration of service.

Description

A kind of aqueous cutting fluid and preparation technology thereof

Technical field

The present invention relates to a kind of metal working fluid, particularly a kind of aqueous cutting fluid and preparation technology thereof.

Background technology

Cutting fluid (cutting fluid, coolant) is that one is used in metal cutting, the mill course of processing, is used for the industrial type fluid of Cooling and Lubricator cutter and workpiece.At present, the water-soluble metalworking liquid used both at home and abroad is mainly divided into emulsified cutting fluid and water based synthetic cutting fluid.Traditional emulsified cutting fluid has good lubricity, but poor stability, and work-ing life is short, easily mouldy, and most Inorganic chemical substance containing there being harm to environment.Water based synthetic cutting fluid is made up of various water-soluble additive and water, not containing objectionable impuritiess such as nitrite, chromic salt, chlorinated phenols, belongs to leading current abrasive product.

CN1139151 discloses a kind of efficient extreme pressure rust-proof water-based cutting liquid and includes Multiple components, and constituent species is more, and complex manufacturing technology, production cost is larger.CN102732364 discloses a kind of preparation method of rust preventive cutting fluid, in preparation process, add machinery oil, and machinery oil is not biodegradable, easy contaminate environment.

In view of this, need invention one not containing objectionable impuritiess such as nitrite, chromic salt, chlorinated phenols, and necessary to the metal working fluid of environmental beneficial.

Summary of the invention

The object of the present invention is to provide a kind of lubrication, antirust, cleaning, cooling excellent, the metal working fluid of safety and Health and preparation technology thereof.

For achieving the above object, one aspect of the present invention provides a kind of metal working fluid, adopts following technical scheme:

A kind of metal working fluid, it is made up of following parts by weight of component:

Oleic acid 20-40%;

Polyoxyethylene glycol 10-15%;

Primary isoamyl alcohol 5-10%;

Trolamine 10-15%;

Boric acid 0.5-1%;

Urea 10-15%;

Sulfuric acid 0.5-1%;

Tertiary sodium phosphate 5-10%;

Sodium Benzoate 1-5%;

Sodium carbonate 3-5%;

Benzotriazole 0.1-0.3%;

The present invention provides a kind of preparation technology of above-mentioned cutting fluid on the other hand, specifically comprises the following steps:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 80-90 DEG C, reaction 1-3h;

(2) maintain the temperature at 80-90 DEG C, add urea, trolamine, constantly stir and be warming up to 90-100 DEG C, reaction 3-5h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, sodium phosphate, benzotriazole, continue to stir 0.5-1.5h;

(4) when being cooled to 50-60 DEG C, add sodium carbonate, adjustment pH value is 7.5-8, namely obtains finished product.

As a further improvement on the present invention, specifically comprise the following steps:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 80-90 DEG C, reaction 2h;

(2) maintain the temperature at 80-90 DEG C, add urea, trolamine, constantly stir and be warming up to 90-100 DEG C, reaction 4h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, sodium phosphate, benzotriazole, continue to stir 1h;

(4) when being cooled to 50-60 DEG C, add sodium carbonate, adjustment pH value is 7.5-8, namely obtains finished product.

Beneficial effect of the present invention is:

1. cutting fluid reasonable ratio provided by the present invention, primarily of compositions such as inhibiter, tensio-active agent, lubricants, not containing the objectionable impurities such as nitrite, chromic salt chlorinated phenols, has ensured the health of worker, and has been beneficial to environmental protection.

2. in the present invention sulfuric acid as ester catalysts, promote the esterification of primary isoamyl alcohol and oleic acid and boric acid, the oleic acid ester generated and boric acid ester play lubrication and the antifrictional effect of extreme pressure preferably, after adding urea and trolamine in addition, trolamine becomes ester with oleic acid further with boric acid, urea mixes with ester and generates jelly, further increase lubricant effect, Sodium Benzoate, tertiary sodium phosphate and benzotriazole is added in system, increase rust-preventing characteristic and the preservative property of cutting fluid, make the duration of service of increase cutting fluid, improve the stability of cuttings liquid.

3. cutting fluid of the present invention in working angles can rapid permeability between processing work and cutter; the lubricant film of adsorptivity is formed between metallic surface and cutter; reduce the friction of cutter front and rear surfaces with bonding; reduce and cut heat seal cutting resistance; and the protective membrane of isolation oxygen can be formed in metallic surface; improve cutter quality, extend cutter duration of service.

4. antirust inspection of the present invention meets GB6144-2000 standard.

Embodiment

Below in conjunction with embodiment, the present invention is described in more detail.

Embodiment 1

A kind of cutting fluid comprises following component raw material:

Oleic acid 20%;

Polyoxyethylene glycol 15%;

Primary isoamyl alcohol 5%;

Trolamine 10%;

Boric acid 1%;

Urea 15%;

Sulfuric acid 0.5%;

Tertiary sodium phosphate 5%;

Sodium Benzoate 1%;

Sodium carbonate 3%;

Benzotriazole 0.1%;

Prepare by following technique:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 90 DEG C, reaction 2h;

(2) maintain the temperature at 90 DEG C, add urea, trolamine, constantly stir and be warming up to 100 DEG C, reaction 4h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, sodium phosphate, benzotriazole, continue to stir 1h;

(4) when being cooled to 60 DEG C, add sodium carbonate, adjustment pH value is 7.7, namely obtains finished product.

Embodiment 2

Embodiment 1

A kind of cutting fluid comprises following component raw material:

Oleic acid 40%;

Polyoxyethylene glycol 15%;

Primary isoamyl alcohol 10%;

Trolamine 15%;

Boric acid 1%;

Urea 10%;

Sulfuric acid 1%;

Tertiary sodium phosphate 10%;

Sodium Benzoate 5%;

Sodium carbonate 5%;

Benzotriazole 0.3%;

Prepare by following technique:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 80-90 DEG C, reaction 2h;

(2) maintain the temperature at 8 DEG C, add urea, trolamine, constantly stir and be warming up to 90 DEG C, reaction 4h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, sodium phosphate, benzotriazole, continue to stir 1h;

(4) when being cooled to 60 DEG C, add sodium carbonate, adjustment pH value is 8, namely obtains finished product.

Embodiment 3

Embodiment 1

A kind of cutting fluid comprises following component raw material:

Oleic acid 30%;

Polyoxyethylene glycol 12%;

Primary isoamyl alcohol 7%;

Trolamine 13%;

Boric acid 0.7%;

Urea 12%;

Sulfuric acid 0.7%;

Tertiary sodium phosphate 7%;

Sodium Benzoate 4%;

Sodium carbonate 4%;

Benzotriazole 0.2%;

Prepare by following technique:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 90 DEG C, reaction 2h;

(2) maintain the temperature at 90 DEG C, add urea, trolamine, constantly stir, reaction 4h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, sodium phosphate, benzotriazole, continue to stir 1h;

(4) when being cooled to 50 DEG C, add sodium carbonate, adjustment pH value is 7.5, namely obtains finished product.

Oleic acid, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are stolen in reactor by the present invention successively, make catalyzer by sulfuric acid, primary isoamyl alcohol does guiding agent, impels the reaction becoming ester between acid with alcohol, because molecular weight polyethylene glycol is larger, be not easy direct reaction, guided by primary isoamyl alcohol, react prior to oleic acid and boric acid, then polyoxyethylene glycol is replaced with primary isoamyl alcohol again, form ester, therefore adding of said components is necessary, and needs a step to add.Add trolamine and urea after reaction clarification, trolamine again with residue boric acid and elaidin reaction, generate nitrogen-containing esters, urea mixes with ester and generates complex compound, reaches critical densifie state, increases lubricant effect further.

Add Sodium Benzoate sodium phosphate benzotriazole additive again, form an individual system with complex compound.Also the additive of not all is all passable herein, and contriver attempts adding silicon oil foam killer, the cutting fluid lubrication deleterious obtained.

The foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; for a person skilled in the art; the present invention can have change and change; within the spirit and principles in the present invention all; the any amendment, improvement etc. done, all should be included within protection scope of the present invention.

Claims (2)

1. an aqueous cutting fluid, is characterized in that it comprises the feed composition of following weight percent:

Oleic acid 20-40%;

Polyoxyethylene glycol 10-15%;

Primary isoamyl alcohol 5-10%;

Trolamine 10-15%;

Boric acid 0.5-1%;

Urea 10-15%;

Sulfuric acid 0.5-1%;

Tertiary sodium phosphate 5-10%;

Sodium Benzoate 1-5%;

Sodium carbonate 3-5%;

Benzotriazole 0.1-0.3%;

The preparation method of described aqueous cutting fluid comprises the following steps:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 80-90 DEG C, reaction 1-3h;

(2) maintain the temperature at 80-90 DEG C, add urea, trolamine, constantly stir and be warming up to 90-100 DEG C, reaction 3-5h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, tertiary sodium phosphate, benzotriazole, continue to stir 0.5-1.5h;

(4) when being cooled to 50-60 DEG C, add sodium carbonate, adjusted to ph is 7.5-8, namely obtains finished product.

2. a kind of aqueous cutting fluid according to claim 1, is characterized in that, described preparation method specifically comprises the following steps:

(1) oleic acid of described ratio, polyoxyethylene glycol, primary isoamyl alcohol, boric acid, sulfuric acid are dropped in reactor successively, stir and be warming up to 80-90 DEG C, reaction 2h;

(2) maintain the temperature at 80-90 DEG C, add urea, trolamine, constantly stir and be warming up to 90-100 DEG C, reaction 4h;

(3) stop heating, stir when being cooled to 80 DEG C and add Sodium Benzoate, tertiary sodium phosphate, benzotriazole, continue to stir 1h;

(4) when being cooled to 50-60 DEG C, add sodium carbonate, adjusted to ph is 7.5-8, namely obtains finished product.