Metal cutting fluid composition as well as preparation method and application thereof

Abstract

The invention relates to a metal cutting fluid composition as well as a preparation method and application thereof, in particular to the technical field of cutting fluid, and the metal cutting fluid composition comprises the following components in parts by weight: 50-60 parts of base oil, 8-10 parts of polyglycerol fatty acid ester, 3-5 parts of mahogany petroleum sulfonate, 5-8 parts of benzenediol, 3-10 parts of polystyrene sulfonic acid compound, 2-10 parts of boric acid and 1-5 parts of phosphate. According to the metal cutting fluid composition provided by the invention, the oxidation resistance of the metal cutting fluid composition is improved through specific selection and configuration of all the components in the composition and the synergistic improvement effect of all the components, and the quality of a workpiece in the cutting process is ensured, so that the influence of cutting operation on the property of the workpiece is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cutting fluids, and in particular to a metal cutting fluid composition, a preparation method and application thereof. Background Art

[0002] At present, when performing cutting processing, it is usually necessary to use lubricants such as coolants, emulsions, cutting oils, cutting fluids, etc. that have lubricating and cooling effects to ensure the realization of cutting effects.

[0003] For example, CN104830492A discloses a cutting fluid, which belongs to the field of lubricants for processing and is composed of the following raw materials in parts by mass: 2-4 parts of water, 15-30 parts of mineral oil, 1-3 parts of diatomaceous earth, 1-3 parts of surfactant; 4-7 parts of molybdate, 1-3 parts of borate; 50-80 parts of polyether compound, 2-4 parts of sorbitan monooleate, 2-4 parts of sodium petroleum sulfonate and 1-2 parts of emulsifier sodium oleate; wherein the polyether compound is a polyether compound polymerized from organic amine ethylene oxide, propylene oxide and butylene oxide; its preparation method is as follows: A: weigh various qualified raw materials in parts by weight according to the raw material ratio; B: add water, mineral oil and polyether compound into a reaction pot and heat to 110°C; C: add emulsifier sodium oleate, diatomaceous earth, sorbitan monooleate and sodium petroleum sulfonate, and stir evenly; D: cool to 20°C, add surfactant, and stir evenly in the same stirring direction.

[0004] For example, CN100362088C discloses a metalworking lubricant composition, comprising a lubricating base oil, a chlorine content of less than 10 ppm, a phosphorus content of less than 200 ppm, an inert sulfur content of A weight % in the composition, an active sulfur content of B weight % in the composition, and a fat content of C weight % in the composition, wherein the product of A×B×C is greater than 0.9 weight % and less than 22.25 weight %.

[0005] However, the existing cutting fluids or lubricants still have the defects of small maximum non-seizure load and sintering load, which cannot guarantee the efficient operation of the cutting operation. At the same time, it will cause a certain degree of oxidation of the cutting parts during the cutting process, resulting in the need for further processing of the workpiece after cutting. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a metal cutting fluid composition and a preparation method and use thereof, so as to solve the problem that the current metal cutting fluid composition may cause oxidation of the workpiece during cutting.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a metal cutting fluid composition, wherein the metal cutting fluid composition comprises, by weight:

[0009]

[0010] The metal cutting fluid composition provided by the present invention achieves the improvement of the antioxidant performance of the metal cutting fluid composition by specifically selecting and configuring the components in the composition and utilizing the synergistic improvement effect between the components, which is beneficial to ensuring the quality of the workpiece during the cutting process, thereby reducing the impact of the cutting operation on the properties of the workpiece.

[0011] As a preferred technical solution of the present invention, the base oil includes one or a combination of at least two of white oil, kerosene or diesel.

[0012] As a preferred technical solution of the present invention, the petroleum sulfonate includes one or a combination of at least two of sodium petroleum sulfonate, potassium petroleum sulfonate or barium petroleum sulfonate.

[0013] As a preferred technical solution of the present invention, the phosphate ester includes trimethyl phosphate and / or triethyl phosphate.

[0014] In a second aspect, the present invention provides a method for preparing the metal cutting fluid composition according to the first aspect, the preparation method comprising:

[0015] The base oil, polyglycerol fatty acid ester and polystyrene sulfonic acid compound are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material for a second high shear treatment to obtain a metal cutting fluid composition.

[0016] As a preferred technical solution of the present invention, the shear rate of the first high shear treatment is 100-200r / min.

[0017] As a preferred technical solution of the present invention, the time of the first high shear treatment is 20-40 minutes.

[0018] As a preferred technical solution of the present invention, the shear rate of the second high shear treatment is 80-150r / min.

[0019] As a preferred technical solution of the present invention, the time of the second high shear treatment is 25-50 minutes.

[0020] In a third aspect, the present invention provides a use of the metal cutting fluid composition as described in the first aspect, wherein the use comprises using the metal cutting fluid composition to perform cutting processing on a metal part.

[0021] Compared with the prior art solutions, the present invention has the following beneficial effects:

[0022] The metal cutting fluid composition provided by the present invention improves the performance of the metal cutting fluid composition in the cutting process by optimizing and adjusting the formula of the composition and by means of the synergistic effect between the polystyrene sulfonic acid compound and the hydroquinone. Furthermore, a specific high shear treatment is introduced during the preparation process, which further improves the performance of the obtained metal cutting fluid composition, further improves the performance of the metal cutting fluid composition, and improves the rust resistance, maximum no-seizure load and sintering load performance of the metal cutting fluid composition. DETAILED DESCRIPTION

[0023] To better illustrate the present invention and facilitate understanding of the technical solution of the present invention, typical but non-limiting embodiments of the present invention are as follows:

[0024] This embodiment provides a metal cutting fluid composition, which comprises, by weight:

[0025]

[0026] In the present invention, the catechol includes one or a combination of at least two of hydroquinone, resorcinol or catechol.

[0027] In the present invention, the polystyrene sulfonic acid compound includes polystyrene sulfonic acid and / or polystyrene sulfonate, wherein the polystyrene sulfonate includes sodium polystyrene sulfonate and / or potassium polystyrene sulfonate.

[0028] In the present invention, the base oil in the metal cutting fluid composition is 50-60 parts by weight, for example, it can be 50 parts, 51 parts, 52 parts, 53 parts, 54 parts, 55 parts, 56 parts, 57 parts, 58 parts, 59 parts or 60 parts, but is not limited to the listed values, and other unlisted values ​​within this range also meet the requirements.

[0029] In the present invention, the polyglycerol fatty acid ester in the metal cutting fluid composition is 8-10 parts by weight, for example, it can be 8 parts, 8.2 parts, 8.4 parts, 8.6 parts, 8.8 parts, 9 parts, 9.2 parts, 9.4 parts, 9.6 parts, 9.8 parts or 10 parts, but is not limited to the listed values, and other unlisted values ​​within this range also meet the requirements.

[0030] In the present invention, the petroleum sulfonate in the metal cutting fluid composition is 3-5 parts by weight, for example, it can be 3 parts, 3.2 parts, 3.4 parts, 3.6 parts, 3.8 parts, 4 parts, 4.2 parts, 4.4 parts, 4.6 parts, 4.8 parts or 5 parts, but is not limited to the listed values, and other unlisted values ​​within this range also meet the requirements.

[0031] In the present invention, the amount of hydroquinone in the metal cutting fluid composition is 5-8 parts by weight, for example, it can be 5 parts, 5.2 parts, 5.4 parts, 5.6 parts, 5.8 parts, 6 parts, 6.2 parts, 6.4 parts, 6.6 parts, 6.8 parts, 7 parts, 7.2 parts, 7.4 parts, 7.6 parts, 7.8 parts or 8 parts, but is not limited to the listed values, and other values ​​not listed within this range also meet the requirements.

[0032] In the present invention, the polystyrene sulfonic acid compound in the metal cutting fluid composition is 3-10 parts by weight, for example, it can be 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts or 10 parts, but is not limited to the listed values, and other unlisted values ​​within this range also meet the requirements.

[0033] In the present invention, the amount of boric acid in the metal cutting fluid composition is 2-10 parts by weight, for example, it can be 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts or 10 parts, etc., but is not limited to the listed values, and other values ​​not listed within this range also meet the requirements.

[0034] In the present invention, the phosphate ester in the metal cutting fluid composition is 1-5 parts by weight, for example, it can be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts, but is not limited to the listed values, and other unlisted values ​​within this range also meet the requirements.

[0035] The base oil includes one or a combination of at least two of white oil, kerosene or diesel.

[0036] Illustratively, the combination of base oils includes a combination of white oil and kerosene, a combination of kerosene and diesel, a combination of white oil and diesel, and the like.

[0037] The petroleum sulfonate includes one or a combination of at least two of sodium petroleum sulfonate, potassium petroleum sulfonate or barium petroleum sulfonate.

[0038] Illustratively, the combination of petroleum sulfonates includes a combination of sodium petroleum sulfonate and potassium petroleum sulfonate, a combination of potassium petroleum sulfonate and barium petroleum sulfonate, a combination of sodium petroleum sulfonate and barium petroleum sulfonate, and the like.

[0039] Wherein, the phosphate ester includes trimethyl phosphate and / or triethyl phosphate.

[0040] Furthermore, this embodiment provides a method for preparing the aforementioned metal cutting fluid composition, the preparation method comprising:

[0041] The base oil, polyglycerol fatty acid ester and polystyrene sulfonic acid compound are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material for a second high shear treatment to obtain a metal cutting fluid composition.

[0042] Wherein, the shear rate of the first high shear treatment is 100-200r / min, for example, it can be 100r / min, 110r / min, 120r / min, 130r / min, 140r / min, 150r / min, 160r / min, 170r / min, 180r / min, 190r / min or 200r / min, but is not limited to the listed values, and other values ​​not listed in this range also meet the requirements.

[0043] The time of the first high shear treatment is 20-40 min, for example, 20 min, 22 min, 24 min, 26 min, 28 min, 30 min, 32 min, 34 min, 36 min, 38 min or 40 min, but is not limited to the listed values, and other values ​​not listed within the range also meet the requirements.

[0044] Wherein, the shear rate of the second high shear treatment is 80-150r / min, for example, it can be 80r / min, 85r / min, 90r / min, 95r / min, 100r / min, 105r / min, 110r / min, 115r / min, 120r / min, 125r / min, 130r / min, 135r / min, 140r / min, 145r / min or 150r / min, but is not limited to the listed values, and other values ​​not listed in this range also meet the requirements.

[0045] The time of the second high shear treatment is 25-50 min, for example, 25 min, 30 min, 35 min, 40 min, 45 min or 50 min, but is not limited to the listed values, and other values ​​not listed within the range also meet the requirements.

[0046] Furthermore, this embodiment provides a use of the aforementioned metal cutting fluid composition, and the use includes using the metal cutting fluid composition to perform cutting processing on metal parts.

[0047] Further, in order to illustrate that the metal cutting fluid composition provided by the present invention has good performance, specific examples are used for illustration, as follows:

[0048] Example 1

[0049] This embodiment provides a metal cutting fluid composition, which comprises, by weight:

[0050]

[0051] The base oil is diesel;

[0052] The petroleum sulfonate is barium oil sulfonate;

[0053] The phosphate ester is trimethyl phosphate;

[0054] The preparation process is as follows:

[0055] The base oil, polyglycerol fatty acid ester and polystyrene sulfonic acid are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material to perform a second high shear treatment to obtain a metal cutting fluid composition;

[0056] The shear rate of the first high shear treatment is 170 r / min; the time of the first high shear treatment is 35 min;

[0057] The shear rate of the second high shear treatment is 100 r / min; the time of the second high shear treatment is 40 min.

[0058] Example 2

[0059] This embodiment provides a metal cutting fluid composition, which comprises, by weight:

[0060]

[0061] The base oil is white oil;

[0062] The petroleum sulfonate is sodium petroleum sulfonate;

[0063] The phosphate ester is triethyl phosphate;

[0064] The preparation process is as follows:

[0065] The base oil, polyglycerol fatty acid ester and sodium polystyrene sulfonate are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material to perform a second high shear treatment to obtain a metal cutting fluid composition;

[0066] The shear rate of the first high shear treatment is 140 r / min; the time of the first high shear treatment is 30 min;

[0067] The shear rate of the second high shear treatment is 120 r / min; the time of the second high shear treatment is 30 min.

[0068] Example 3

[0069] This embodiment provides a metal cutting fluid composition, which comprises, by weight:

[0070]

[0071] The base oil is white oil;

[0072] The petroleum sulfonate is potassium petroleum sulfonate;

[0073] The phosphate ester is trimethyl phosphate;

[0074] The preparation process is as follows:

[0075] The base oil, polyglycerol fatty acid ester and potassium polystyrene sulfonate are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material to perform a second high shear treatment to obtain a metal cutting fluid composition;

[0076] The shear rate of the first high shear treatment is 200 r / min; the time of the first high shear treatment is 20 min;

[0077] The shear rate of the second high shear treatment is 150 r / min; the time of the second high shear treatment is 25 min.

[0078] Example 4

[0079] This embodiment provides a metal cutting fluid composition, which comprises, by weight:

[0080]

[0081]

[0082] The base oil is kerosene;

[0083] The petroleum sulfonate is sodium petroleum sulfonate;

[0084] The phosphate ester is triethyl phosphate;

[0085] The preparation process is as follows:

[0086] The base oil, polyglycerol fatty acid ester and polystyrene sulfonic acid are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material to perform a second high shear treatment to obtain a metal cutting fluid composition;

[0087] The shear rate of the first high shear treatment is 100 r / min; the time of the first high shear treatment is 40 min;

[0088] The shear rate of the second high shear treatment is 80 r / min; the time of the second high shear treatment is 50 min.

[0089] Example 5

[0090] The only difference from Example 1 is that the first high shear treatment is replaced by mechanical mixing and stirring at a stirring speed of 140 r / min.

[0091] Example 6

[0092] The only difference from Example 1 is that the second high shear treatment is replaced by mechanical mixing and stirring at a stirring speed of 100 r / min.

[0093] Comparative Example 1

[0094] The only difference from Example 1 is that boric acid is replaced by an equal amount of sodium borate.

[0095] Comparative Example 2

[0096] The only difference from Example 1 is that the phosphate ester is replaced by an equal amount of boric acid.

[0097] Comparative Example 3

[0098] The only difference from Example 1 is that no polystyrene sulfonic acid was added.

[0099] Comparative Example 4

[0100] The only difference from Example 1 is that the added weight parts of polystyrene sulfonic acid is 15 parts.

[0101] Comparative Example 5

[0102] The only difference from Example 1 is that the added weight portion of polystyrene sulfonic acid is 1 part.

[0103] Comparative Example 6

[0104] The only difference from Example 1 is that hydroquinone is replaced by an equal amount of phenol.

[0105] Comparative Example 7

[0106] The only difference from Example 1 is that the weight portion of hydroquinone is 10 parts.

[0107] Comparative Example 8

[0108] The only difference from Example 1 is that the weight portion of hydroquinone is 3 parts.

[0109] The compositions obtained in the examples and comparative examples were subjected to a four-ball machine test. The steel balls in the test were GCr15 standard steel balls with a diameter of 12.7 mm, a hardness of 61-65 HRC, and a rotation speed of 1450 r / min. At the same time, an anti-rust test was performed according to the single-piece anti-rust test in the national standard GB / T6144-2010. The test results are detailed in Table 1.

[0110] Table 1

[0111]

[0112]

[0113] As can be seen from Table 1, in the solution provided by the present invention, the maximum non-seizure load and sintering load are improved by taking advantage of the synergistic effect between the components of the composition, which helps to improve the cutting effect in the cutting operation and has good lubrication effect and antioxidant effect.

[0114] It is stated that the present invention illustrates the detailed structural features of the present invention through the above embodiments, but the present invention is not limited to the above detailed structural features, that is, it does not mean that the present invention must rely on the above detailed structural features to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the components selected by the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0115] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0116] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0117] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A metal cutting fluid composition, characterized in that: The metal cutting fluid composition comprises, by weight:

2. The metal cutting fluid composition according to claim 1, characterized in that: The base oil includes one or a combination of at least two of white oil, kerosene or diesel.

3. The metal cutting fluid composition according to claim 1 or 2, characterized in that: The petroleum sulfonate includes one or a combination of at least two of sodium petroleum sulfonate, potassium petroleum sulfonate or barium petroleum sulfonate.

4. The metal cutting fluid composition according to any one of claims 1 to 3, characterized in that: The phosphate ester includes trimethyl phosphate and / or triethyl phosphate.

5. A method for preparing the metal cutting fluid composition according to any one of claims 1 to 4, characterized in that: The preparation method comprises: The base oil, polyglycerol fatty acid ester and polystyrene sulfonic acid compound are mixed and subjected to a first high shear treatment to obtain an intermediate material, and then petroleum sulfonate, hydroquinone, boric acid and phosphate are added to the intermediate material for a second high shear treatment to obtain a metal cutting fluid composition.

6. The preparation method according to claim 5, characterized in that: The shear rate of the first high shear treatment is 100-200 r / min.

7. The preparation method according to claim 5 or 6, characterized in that: The time of the first high shear treatment is 20-40 minutes.

8. The preparation method according to any one of claims 5 to 7, characterized in that: The shear rate of the second high shear treatment is 80-150 r / min.

9. The preparation method according to any one of claims 5 to 8, characterized in that: The second high shear treatment lasts for 25-50 minutes.

10. A use of the metal cutting fluid composition according to any one of claims 1 to 4, characterized in that: The use includes cutting metal parts by using the metal cutting fluid composition.

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