CN112658411A - High-mirror-surface spark processing liquid and preparation method thereof - Google Patents

Abstract

A high-mirror-surface spark processing liquid comprises the following components: 35 to 55 percent of isomeric hexadecane, 45 to 65 percent of dodecane, 0.09 to 0.16 percent of antioxidant, 0.05 to 0.12 percent of antifoaming agent and 0.03 to 0.08 percent of anticoagulant. The high-mirror-surface spark processing liquid is colorless, odorless, foamless, harmless to skin and respiratory tract, high in safety, capable of meeting the requirements of skin care grade, high in flash point, long in service life, good in mirror surface effect, good in anti-condensation capacity and capable of being normally used in cold regions.

Description

High-mirror-surface spark processing liquid and preparation method thereof

Technical Field

The invention relates to a spark processing liquid, in particular to a high-mirror-surface spark processing liquid and a preparation method thereof.

Background

The electric discharge machining is a method of machining a workpiece in a certain medium by an electroerosion action of pulse discharge between a tool electrode and a workpiece electrode. Electrical discharge machining is carried out in a liquid medium, which is therefore also referred to as a machining fluid.

However, the conventional spark processing liquid has a strong odor and corrosiveness, and is liable to cause damage to the skin of a user.

Disclosure of Invention

In order to solve the above problems, the present invention provides a high-surface spark processing liquid, which comprises the following components: 35 to 55 percent of isomeric hexadecane, 45 to 65 percent of dodecane, 0.09 to 0.16 percent of antioxidant, 0.05 to 0.12 percent of antifoaming agent and 0.03 to 0.08 percent of anticoagulant.

Further, the isomeric hexadecanes are mixtures of one or more of a polymeric hydrogenated tetraisobutylene fraction of C4-hydrocarbons free of 1, 3-butadiene and a mixture of dodecane isomers.

Further, the dodecane is one or more of dodecane and bromodichloroacetic acid.

Further, the antioxidant is one or a mixture of 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 4- [ (4, 6-dioctylthio-1, 3, 5-triazin-2-yl) amino ] -2, 6-di-tert-butylphenol.

Further, the anti-foaming agent is one or a mixture of polydimethylsiloxane, tributyl phosphate and polypropylene glycol monobutyl ether.

Further, the anti-coagulant is 6-bromo-2-naphthyl-beta-D-galactopyranoside.

7. The invention also provides a preparation method of the high-mirror-surface spark processing liquid, which comprises the following steps of

The following steps:

step 1, adding isomeric hexadecane, dodecane, an antioxidant, an antifoaming agent and a pour inhibitor into a stirrer;

step 2, stirring by a stirrer at the rotating speed of 100 revolutions per second for 30 min;

and 3, cooling to form the high-mirror-surface spark processing liquid.

After the technical scheme is adopted, the invention has the effects that: the high-mirror-surface spark processing liquid is colorless, odorless, foamless, harmless to skin and respiratory tract, high in safety, capable of meeting the requirements of skin care grade, high in flash point, long in service life, good in mirror surface effect, good in anti-condensation capacity and capable of being normally used in cold regions.

Detailed Description

The technical solution of the present invention is further described by the following examples:

the invention provides a high-mirror-surface spark processing liquid, which comprises the following components: 35 to 55 percent of isomeric hexadecane, 45 to 65 percent of dodecane, 0.09 to 0.16 percent of antioxidant, 0.05 to 0.12 percent of antifoaming agent and 0.03 to 0.08 percent of anticoagulant.

The spark processing liquid adopts isomeric hexadecane and dodecane as fully synthetic base oil, is colorless and tasteless, has good physical, chemical and toxicological safety, is completely harmless to skin, is bright and good in uniformity, and meets the requirement of the market on mirror surface effect; the antioxidant can delay or inhibit the oxidation process of the spark processing fluid, thereby preventing the aging of the spark processing fluid and prolonging the service life of the spark processing fluid; the antifoaming agent can reduce the surface tension of the spark processing liquid and prevent the formation of foam; the anti-coagulation agent can prevent the spark processing liquid from coagulating, thereby ensuring that the spark processing liquid can be normally used under the cold condition.

Therefore, the high-mirror-surface spark processing liquid is colorless, odorless, foamless, harmless to skin and respiratory tract, high in flash point, long in service life, good in mirror surface effect, good in antifreezing capacity and capable of being used normally in cold areas, and the safety can meet the requirements of skin care grades.

Specifically, isomeric hexadecanes are mixtures of one or more of the polymeric hydrogenated tetraisobutylene fraction of C4-hydrocarbons (CAS93685-80-4) and dodecane isomer mixture (CAS93685-81-5) without 1, 3-butadiene.

Specifically, dodecane is a mixture of one or more of dodecane (CAS112-70-3) and bromodichloroacetic acid (CAS 90622-57-4).

Specifically, the antioxidant is one or a mixture of 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate (CAS2082-79-3) and 4- [ (4, 6-dioctylthio-1, 3, 5-triazin-2-yl) amino ] -2, 6-di-tert-butylphenol (CAS 991-84-4).

Specifically, the antifoaming agent is one or more of polydimethylsiloxane (CAS9006-65-9), tributyl phosphate (CAS126-73-8) and polypropylene glycol monobutyl ether (CAS 9003-13-8).

Specifically, the anticoagulant is 6-bromo-2-naphthyl-beta-D-galactopyranoside (CAS 15572-30-2). The 6-bromo-2-naphthyl-beta-D-galactopyranoside has strong antifreezing capability, and can be normally used in an environment with the temperature of-40 ℃.

The invention also provides a preparation method of the high-mirror-surface spark processing liquid, which comprises the following steps:

step 1, adding isomeric hexadecane, dodecane, an antioxidant, an antifoaming agent and a pour inhibitor into a stirrer;

step 2, stirring by a stirrer at the rotating speed of 100 revolutions per second for 30 min;

and 3, cooling to form the high-mirror-surface spark processing liquid.

Example 1

In this example, the spark processing fluid comprises the following components: 45.2% of hydrogenated tetraisobutylene fraction, a C4-hydrocarbon polymer free of 1, 3-butadiene, 54.5% of dodecane, 0.15% of n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 0.1% of polydimethylsiloxane, and 0.05% of 6-bromo-2-naphthyl-beta-D-galactopyranoside.

Example 2

In this example, the spark processing fluid comprises the following components: polymer hydrogenated tetraisobutylene fraction of C4-hydrocarbons without 1, 3-butadiene 41.2%, dodecane 58.5%, n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate 0.15%, polydimethylsiloxane 0.1%, 6-bromo-2-naphthyl- β -D-galactopyranoside 0.05%.

Example 3

In this example, the spark processing fluid comprises the following components: 49.2% of hydrogenated tetraisobutylene fraction, which is a polymer of C4-hydrocarbons free of 1, 3-butadiene, 50.5% of dodecane, 0.15% of n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 0.1% of polydimethylsiloxane, 0.05% of 6-bromo-2-naphthyl-beta-D-galactopyranoside.

Comparative example 1

In this example, the spark processing fluid comprises the following components: 30.2% of a fraction of hydrogenated tetraisobutene, a polymer of C4-hydrocarbons free of 1, 3-butadiene, 69.5% of dodecane, 0.15% of n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 0.1% of polydimethylsiloxane and 0.05% of 6-bromo-2-naphthyl-beta-D-galactopyranoside.

Comparative example 2

In this example, the spark processing fluid comprises the following components: 59.2% of hydrogenated tetraisobutene fraction of a C4 hydrocarbon polymer free of 1, 3-butadiene, 40.5% of dodecane, 0.15% of n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 0.1% of polydimethylsiloxane and 0.05% of 6-bromo-2-naphthyl-beta-D-galactopyranoside.

Comparative example 3

In this example, the spark processing fluid comprises the following components: polymer hydrogenated tetraisobutylene fraction of C4-hydrocarbons without 1, 3-butadiene 45.2%, dodecane 54.5%, n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate 0.15%, 6-bromo-2-naphthyl- β -D-galactopyranoside 0.05%.

Comparative example 4

In this example, the spark processing fluid comprises the following components: 45.2% of hydrogenated tetraisobutylene fraction, which is a polymer of C4-hydrocarbons free of 1, 3-butadiene, 54.5% of dodecane, 0.15% of n-octadecyl 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, and 0.1% of polydimethylsiloxane.

The spark working fluids of the above examples were tested and the results are shown in Table 1:

TABLE 1

Wherein, the test standard of the appearance is as follows: a colorless transparent liquid; the test criteria for odor were: no obvious smell; the initial boiling point test criteria were: more than or equal to 230 ℃; the test criteria for the end point were: less than or equal to 300 ℃; the test standards for viscosity are: 2.1-2.5 mm²S; the test criteria for aromatics content were: less than or equal to 0.15 percent; the test criteria for flash point were: more than or equal to 100 ℃; pour point test criteria were: less than or equal to-20 ℃; the test standards for the oxygen resistance are as follows: no discoloration (i.e., no discoloration upon heating to above 80 ℃); the test criteria for the defoaming rate were: more than or equal to 80 percent; the test standards for sulfur content were: less than or equal to 1.0 percent; the bromine number test criteria were: less than or equal to 50mgBr/100 g; the test standards for Saybolt color are: +28 to 30. The density is measured data.

The test results of various proportions show that when the content of isomeric hexadecane is too low and the content of dodecane is too high, the viscosity of the spark processing liquid is too low, and the brightness is not good, so that the mirror effect is influenced; when the content of isomeric hexadecane is too high and the content of dodecane is too low, the viscosity of the spark processing liquid is too high, the uniformity is poor, and the mirror effect is also influenced; the defoaming rate can not meet the requirement under the condition of not adding an antifoaming agent; the pour point can not meet the requirement without adding the retarder.

The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.

Claims (6)

1. A high-mirror-surface spark processing liquid is characterized in that: the spark processing liquid comprises the following components: 35 to 55 percent of isomeric hexadecane, 45 to 65 percent of dodecane, 0.09 to 0.16 percent of antioxidant, 0.05 to 0.12 percent of antifoaming agent and 0.03 to 0.08 percent of anticoagulant.

2. The high-specular spark processing liquid according to claim 1, wherein: the isomeric hexadecanes are mixtures of one or more of a polymeric hydrogenated tetraisobutylene fraction of C4-hydrocarbons free of 1, 3-butadiene and a mixture of dodecane isomers.

The high-specular spark processing liquid according to claim 1, wherein: the dodecane is one or a mixture of dodecane and bromodichloroacetic acid.

3. The high-specular spark processing liquid according to claim 1, wherein: the antioxidant is one or a mixture of 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 4- [ (4, 6-dioctylthio-1, 3, 5-triazin-2-yl) amino ] -2, 6-di-tert-butylphenol.

4. The high-specular spark processing liquid according to claim 1, wherein: the anti-foaming agent is one or a mixture of polydimethylsiloxane, tributyl phosphate and polypropylene glycol monobutyl ether.

5. The high-specular spark processing liquid according to claim 1, wherein: the anti-coagulant is 6-bromo-2-naphthyl-beta-D-galactopyranoside.

6. A method for preparing the high-specular spark processing liquid according to claim 1, wherein: the preparation method comprises the following steps:

step 1, adding isomeric hexadecane, dodecane, an antioxidant, an antifoaming agent and a pour inhibitor into a stirrer;

step 2, stirring by a stirrer at the rotating speed of 100 revolutions per second for 30 min;

and 3, cooling to form the high-mirror-surface spark processing liquid.