TW202124688A - Aluminum alloy cutting fluid having good emulsion stability, aluminum corrosion inhibition and iron rust prevention performance - Google Patents

Abstract

The present invention relates to an aluminum alloy cutting fluid, which contains 27.3-30.3 wt% of water-soluble complex agent, 1.7-1.95 wt% of aluminum corrosion inhibitor, 0.43-0.48 wt% of copper corrosion inhibitor, 0.95-11 wt% of water-based rust inhibitor and 60-66.4 wt% of water. The water-soluble compounding agent includes fatty acid amide, N,N'-methylenebismorpholine, diethylene glycol monobutyl ether, and diethanolamine. The aluminum corrosion inhibitor includes CP-NF-3 containing phosphate derivatives manufactured by Lubrizol, MDIT containing phosphate derivatives manufactured by Clariant, or Innoan ALI containing phosphate derivatives sold by Innovision. The copper corrosion inhibitor contains tolyltriazole derivatives. The water-based rust inhibitor contains JK 203A-10 containing boric acid derivatives sold by Triol Trading LLC. Thereby, the aluminum alloy cutting fluid has good emulsion stability, aluminum corrosion inhibition and iron rust prevention performance.

Description

Aluminum alloy cutting fluid

The present invention is related to cutting fluid, and particularly refers to an aluminum alloy cutting fluid.

Aluminum alloys are divided into multiple series due to their different main alloying elements. Among them, the 7075 series aluminum alloy with zinc as the main alloying element has high strength, high hardness and light weight. It is often used in emerging products such as aerospace, automobiles or 3C products. However, its poor corrosion resistance makes 7075 series aluminum alloys more difficult to process than other series of aluminum alloys. Therefore, it is necessary to carefully select the cutting fluid used during processing to ensure that 7075 series aluminum alloys will not be processed. Corrosion and oxidation occurs during the process. In addition, the selected cutting fluid must not only have good corrosion resistance to aluminum alloy, but also prevent iron or copper processing tools from being accelerated due to the corrosion of the components in the cutting fluid. Generally, water-based cutting fluids can be divided into emulsified, microemulsified (half-emulsified), and synthetic cutting fluids. The microemulsified cutting fluid combines the lubricating, cooling and cleaning properties of the emulsified and synthetic cutting fluids. Microemulsion type cutting fluid has become the most widely used cutting fluid on the market. Although there are currently many cutting fluids with different formulations on the market for users to choose from, how to make the functions of the cutting fluid more perfect, such as better emulsification stability, longer aluminum corrosion inhibition time, and iron rust prevention Time has become the goal of the joint efforts of industry players in the field.

One object of the present invention is to provide an aluminum alloy cutting fluid, which has good emulsion stability, aluminum corrosion inhibition and iron rust prevention performance.

In order to achieve the above purpose, the aluminum alloy cutting fluid of the present invention contains a water-soluble compounding agent 27.3-30.3 wt%, an aluminum corrosion inhibitor 1.7-1.95 wt%, a copper corrosion inhibitor 0.43-0.48 wt%, and a water-based rust inhibitor 0.95- 11 wt%, and water 60-66.4 wt%, the water-soluble compounding agent contains fatty acid amide (Fatty acid amide), N,N'-methylenebismorpholine (N,N'-methylenebismorpholine), diethylene glycol Diethylene glycol monobutyl ether, and Diethanolamine, the aluminum corrosion inhibitor includes CP-NF-3 containing phosphate derivatives manufactured by Lubrizol, and The MDIT containing phosphate derivatives manufactured by Clariant, or the Innoan ALI containing phosphate derivatives sold by Innovision, the copper corrosion inhibitor contains tolutriazole derivatives. The water-based rust inhibitor includes JK 203A-10 containing boric acid derivatives sold by Triol International Trading Co., Ltd. Thereby, the aluminum alloy cutting fluid has good emulsion stability, aluminum corrosion inhibition and iron rust prevention performance.

The technical content and features of the present invention are described in detail in the following six preferred embodiments. The aluminum alloy cutting fluid of the present invention includes a water-soluble compounding agent, an aluminum corrosion inhibitor, a copper corrosion inhibitor, a water-based rust inhibitor, and water.

The components and their weight percentages in the aluminum alloy cutting fluid are as follows:

Water-soluble compounding agent 27.3-30.3 wt%, the water-soluble compounding agent contains fatty acid amide (Fatty acid amide), N,N'-methylenebismorpholine (N,N'-methylenebismorpholine), diethylene glycol mono Diethylene glycol monobutyl ether and Diethanolamine. In this embodiment, the water-soluble compounding agent is Lubrizol ^® 5481 manufactured by Lubrizol.

Aluminum corrosion inhibitor 1.7-1.95 wt%, the aluminum corrosion inhibitor contains CP-NF-3 containing phosphate derivatives manufactured by Lubrizol and manufactured by Clariant MDIT containing phosphate derivatives, or Innoan ALI containing phosphate derivatives sold by Innovision.

The copper corrosion inhibitor is 0.43-0.48 wt% and contains a tolyltriazole derivative. In this embodiment, the copper corrosion inhibitor contains Irgament ^® 42 manufactured by BASF.

Water-based rust inhibitor 0.95-11 wt%, which contains JK 203A-10 containing boric acid derivatives sold by Triol International Trading Co., Ltd.

Water 60-66.4 wt%.

The technical solutions of the present invention are further illustrated by specific examples and comparative examples below. It should be noted that in the comparative examples, the aluminum corrosion inhibitor is selected from Evonik Industries (Evonik Industries) containing phosphate derivatives. Rewocoros ^® AL-200, G50-N containing polyoxyalkylene derivatives sold by Anfeng Industrial Co., Ltd., G50-N containing polyoxyalkylene derivatives sold by Anfeng Industrial Co., Ltd. G50-50, and any one of CP-NF-12 containing phosphate derivatives manufactured by Lubrizol.

It should be noted that the following aluminum corrosion test method uses water as the solvent to dilute the aluminum alloy cutting fluid to a test solution with a concentration of 10%. First, the test solution is poured over the entire test aluminum sheet, and then part of the test aluminum sheet is immersed in the test Let stand in the solution, and observe and test the aluminum sheet after 2 hours (2H), 4 hours (4H), 24 hours (24H), 48 hours (48H) and 72 hours (72H). Where they intersect, the codes 1b, 2b, and 3b are used to indicate the three levels of corrosion. 1b is not corroded, 2b is mild corrosion, that is, the immersion part of the test aluminum sheet is slightly discolored, and 3b is moderate corrosion, that is, the aluminum sheet is tested. The soaked area is obviously discolored, and there is a significant interface between the soaked area and the unsoaked area. If the corrosion degree reaches 3b, stop recording.

First of all, the present invention uses ^{the water-soluble compound of Lubrizol ®} 5481 manufactured by Lubrizol to replace the lubricant, emulsifier, bactericide, and rust inhibitor of traditional microemulsified cutting fluids. The water-soluble Compared with the direct use of the above-mentioned ingredients, the dispersibility of the sexual compounding agent is better, and the oil and water layer can be avoided, so that the aluminum alloy cutting fluid of the present invention can have good emulsification stability.

Table 1 Chemicals Comparative example one g wt% Water-soluble compounding agent 15.75 31.34 water 34.5 68.66 time Aluminum corrosion degree 2H 3b

From Comparative Example 1 in Table 1, it can be seen that the water-based compounding agent cannot effectively inhibit aluminum corrosion. Therefore, the aluminum alloy cutting fluid still needs to be added with aluminum corrosion inhibitors to achieve the function of inhibiting aluminum corrosion. The following is an experimental test to add various aluminum corrosion inhibitors The anti-corrosion effect of the agent.

Table 2 Chemicals Comparative example two Comparative example three Comparative example four Comparative example five Comparative Example 6 Comparative Example 7 Comparative Example 8 g wt% g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 31.19 15.75 31.03 15.75 30.88 15.75 30.73 15.75 30.58 15.75 30.43 15.75 32.29 CP-NF-3 0.25 0.50 0.5 0.99 0.75 1.47 1 1.95 1.25 2.43 1.5 2.90 1.75 3.37 water 34.5 68.32 34.5 67.98 34.5 67.65 34.5 67.32 34.5 66.99 34.5 66.67 34.5 66.35 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown mist time Aluminum corrosion degree 2H 3b 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 4H 2b 1b~2b 1b~2b 1b~2b 1b~2b 24H 2b 2b 2b 2b 2b 48H 2b 2b 2b 2b 2b 72H 2b 2b 2b 2b 2b

From Comparative Examples 2 to 8 in Table 2, it can be seen that the CP-NF-3 containing phosphate derivatives manufactured by Lubrizol started to exhibit aluminum corrosion inhibitory effects when the addition amount reached 0.5 g, but when added When the amount reaches 1.75 g (ie Comparative Example 8), the appearance is brown and misty, and its emulsion stability is not good, which may affect the aluminum corrosion inhibition effect. Therefore, Comparative Example 8 has not been tested for aluminum corrosion. Therefore, it can be concluded from Table 2 that when the aluminum corrosion inhibitor is CP-NF-3, the addition amount of 0.5 to 1.5 grams has good aluminum corrosion inhibition performance.

table 3 Chemicals Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 Comparative Example 13 g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 31.19 15.75 31.03 15.75 30.88 15.75 30.73 15.75 30.58 MDIT 0.25 0.50 0.5 0.99 0.75 1.47 1 1.95 1.25 2.43 water 34.5 68.32 34.5 67.98 34.5 67.65 34.5 67.32 34.5 66.99 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent time Aluminum corrosion results 2H 3b 1b~2b 1b~2b 1b~2b 1b 4H 1b~2b 1b~2b 1b~2b 1b~2b 24H 2b 2b 2b 2b 48H 2b 2b 2b 2b 72H 2b 2b 2b 2b

Table 4 Chemicals Comparative Example Fourteen Comparative Example 15 Comparative Example 16 g wt% g wt% g wt% Water-soluble compounding agent 15.75 30.43 15.75 32.29 15.75 30.29 MDIT 1.5 2.90 1.75 3.37 2 3.85 water 34.5 66.67 34.5 66.35 34.5 66.35 Exterior Brown transparent Brown transparent Brown mist time Aluminum corrosion results 2H 1b~2b 1b 4H 1b~2b 1b 24H 1b~2b 1b 48H 2b 1b~2b 72H 2b 1b~2b

From Comparative Examples 9 to 16 in Table 3 and Table 4, it can be seen that when the addition amount of MDIT containing phosphate derivatives manufactured by Clariant reaches 0.5 g, the aluminum corrosion inhibitory effect begins to be exhibited, but when the amount is added When it reaches 2 grams (ie Comparative Example 16), the appearance is brown and misty, and its emulsification stability is not good, which may affect the aluminum corrosion inhibitory effect. Therefore, Comparative Example 16 has not been tested for aluminum corrosion. Therefore, it can be concluded from Table 3 and Table 4 that when the aluminum corrosion inhibitor is MDIT, the addition amount of 0.5 to 1.75 g has good aluminum corrosion inhibition performance.

table 5 Chemicals Comparative Example 17 Comparative Example 18 Comparative Example 19 Comparative Example 20 Comparative Example 21 Comparative Example 22 g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 31.19 15.75 31.03 15.75 30.88 15.75 30.73 15.75 30.58 15.75 30.43 AL200 0.25 0.50 0.5 0.99 0.75 1.47 1 1.95 1.25 2.43 1.5 2.90 water 34.5 68.32 34.5 67.98 34.5 67.65 34.5 67.32 34.5 66.99 34.5 66.67 time Aluminum corrosion results 2H 2b 1b~2b 1b~2b 2b 1b 3b 4H 2b~3b 2b 1b~2b 2b 2b 24H 3b 2b 1b~2b 2b 2b 48H 2b 2b 2b 2b 72H 2b 2b 2b 2b

From Comparative Examples 17 to 22 in Table 5, it can be seen that the rewocoros ^® AL-200 containing phosphate derivatives manufactured by Evonik Industries starts to exhibit aluminum corrosion inhibitory effects when it reaches 0.5 g, but when When the addition amount reaches 1.5 g, the aluminum corrosion inhibitory effect begins to decrease. Therefore, when the aluminum corrosion inhibitor is rewocoros ^® AL-200, the addition amount of 0.5 to 1.5 grams has good aluminum corrosion inhibition performance.

Table 6 Chemicals Comparative Example 23 Comparative Example 24 Comparative Example 25 Comparative Example 26 Comparative Example 27 Comparative Example 28 Comparative Example 29 g wt% g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 31.03 15.75 30.88 15.75 30.73 15.75 30.58 15.75 30.43 15.75 32.29 15.75 30.29 ALI 0.5 0.99 0.75 1.47 1 1.95 1.25 2.43 1.5 2.90 1.75 3.37 2 3.85 water 34.5 67.98 34.5 67.65 34.5 67.32 34.5 66.99 34.5 66.67 34.5 66.35 34.5 66.35 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown mist time Aluminum corrosion results 2H 3b 1b 1b 1b 1b~2b 1b 4H 1b~2b 1b 1b 1b~2b 1b 24H 1b~2b 1b 1b 1b~2b 1b~2b 48H 2b 2b 1b~2b 1b~2b 1b~2b 72H 2b 2b 2b 2b 2b

From Comparative Examples 23 to 29 in Table 6, it can be seen that the Innoan ALI containing phosphate derivatives sold by Innovision starts to exhibit aluminum corrosion inhibitory effects when it reaches 0.75 grams, but when the amount of addition reaches 2 grams (Comparative Example 29), the appearance is brown and misty, and its emulsion stability is not good, which may affect the aluminum corrosion inhibition effect. Therefore, Comparative Example 29 has not been tested for aluminum corrosion. Therefore, it can be seen from Table 6 that when the aluminum corrosion inhibitor is Innoan ALI, the addition amount of 0.75 to 1.75 grams has good aluminum corrosion inhibition performance.

Table 7 Chemicals Comparative Example 30 Comparative Example 31 Comparative Example 32 Comparative Example 33 Comparative Example 34 g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 31.03 15.75 30.73 15.75 30.43 15.75 30.73 15.75 30.43 G50-N 0.5 0.99 1 1.95 1.5 2.90 - 0.00 - 0.00 G50-50 - 0.00 - 0.00 - 0.00 1 1.95 1.5 2.90 water 34.5 67.98 34.5 67.32 34.5 66.67 34.5 67.32 34.5 66.67 time Aluminum corrosion results 2H 3b 3b 3b 3b 3b

From Comparative Examples 30 to 34 in Table 7, it can be seen that G50-N and G50-50 containing polyoxyalkylene derivatives sold by Anfeng Industrial Co., Ltd. do not have aluminum corrosion inhibition regardless of the amount added. effect.

Table 8 Chemicals Comparative Example 35 Comparative Example 36 Comparative Example 37 Comparative Example 38 Comparative Example 39 Comparative Example 40 Comparative Example 41 g wt% g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 31.03 15.75 30.80 15.75 30.73 15.75 30.58 15.75 30.43 15.75 32.29 15.75 30.29 CP-NF-12 0.5 0.99 0.89 1.74 1 1.95 1.25 2.43 1.5 2.90 1.75 3.37 2 3.85 water 34.5 67.98 34.5 67.46 34.5 67.32 34.5 66.99 34.5 66.67 34.5 66.35 34.5 66.35 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown mist time Aluminum corrosion results 2H 3b 1b~2b 1b 1b 1b 1b 4H 1b~2b 1b~2b 1b~2b 1b 1b 24H 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 48H 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 72H 2b 2b 2b 1b~2b 1b~2b

From the comparative examples 35 to 41 in Table 8, it can be seen that the CP-NF-12 containing phosphate derivatives manufactured by Lubrizol starts to exhibit aluminum corrosion inhibitory effects when it reaches 0.75 g, but when When the addition amount reaches 2 grams (ie Comparative Example 41), the appearance is brown and misty, and its emulsion stability is not good, which may affect the aluminum corrosion inhibition effect. Therefore, Comparative Example 41 is not tested for aluminum corrosion. Therefore, it can be seen from Table 8 that when the aluminum corrosion inhibitor is CP-NF-12, the addition amount of 0.75 to 1.75 grams has good aluminum corrosion inhibition performance.

From Comparative Examples 2 to 41 in Table 2 to Table 8, it can be seen that G50-N and G50-50 containing polyoxyalkylene derivatives do not have the effect of inhibiting aluminum corrosion. Therefore, the aluminum corrosion inhibitor contains phosphoric acid. The ester derivatives CP-NF-3, MDIT, AL200, ALI and CP-NF-12 have the effect of inhibiting aluminum corrosion. However, since the aluminum alloy cutting fluid contains a large amount of water, it is easy to cause corrosion of machine tools and cutting tools and other processing tools. Generally, the processing tools are made of cast iron or copper. Therefore, the aluminum alloy cutting fluid must also have cast iron protection. Rust and copper corrosion inhibition performance, so add water-based rust inhibitors to prevent iron rust and copper corrosion inhibitors.

It should be noted that the following anti-rust test system uses water as a solvent to dilute the aluminum alloy cutting fluid to a test solution with a concentration of 5% and test with reference to the DIN51360-2 test method of the 1981 edition, and is represented by the following symbols Corrosion status: ◎: No embroidery at all; ○: Embroidery within ten o'clock; △: Embroidery with an area of 1/3; X: Embroidery with an area of 1/2; XX: Embroidery with an area of 2/3.

In the following comparative examples and examples, the copper corrosion inhibitor is made by BASF Corporation (BASF) and contains the toluotriazole derivative Irgament® 42; the water-based rust inhibitor is made by Triol International Trade JK 203A-10 containing boric acid derivatives sold by Co., Ltd., in which the copper corrosion inhibitor Irgament® 42 is quantitatively controlled at 0.25 grams.

Table 9 Chemicals Example one Example two Comparative Example 42 Example three Comparative Example 43 g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 28.38 15.75 28.38 15.75 28.38 15.75 28.38 15.75 28.38 CP-NF-3 1 1.80 - 0.00 - 0.00 - 0.00 - 0.00 MDIT - 0.00 1 1.80 - 0.00 - 0.00 - 0.00 AL200 - 0.00 - 0.00 1 1.80 - 0.00 - 0.00 ALI - 0.00 - 0.00 - 0.00 1 1.80 - 0.00 CP-NF-12 - 0.00 - 0.00 - 0.00 - 0.00 1 1.80 Copper corrosion inhibitor 0.25 0.45 0.25 0.45 0.25 0.45 0.25 0.45 0.25 0.45 Water-based rust inhibitor 4 7.21 4 7.21 4 7.21 4 7.21 4 7.21 water 34.5 62.16 34.5 62.16 34.5 62.16 34.5 62.16 34.5 62.16 55.5 1 55.5 1 55.5 1 55.5 1 55.5 1 Exterior Brown transparent Brown transparent Brown mist Brown transparent Brown mist time Aluminum corrosion results 2H 1b~2b 1b 3b 1b~2b 3b 4H 2b 1b 1b~2b 72H 2b 1b~2b 2b Cast iron corrosion results 10 days ◎ 10 days ◎ 10 days ◎

From Examples 1 to 3 in Table 9 and Comparative Examples 42 to 43, it can be seen that the water-based rust inhibitor JK 203A-10 containing boric acid derivatives will interact with some phosphate derivatives (ie AL200 and CP-NF- 12) The mutual reaction caused the solution to atomize, which made the emulsion stability poor, and even affected its ability to inhibit aluminum corrosion. Other phosphate derivatives (CP-NF-3, MDIT and ALI) had no effect. Therefore, in the following examples, one of CP-NF-3, MDIT, and ALI is used as an aluminum corrosion inhibitor, and the water-based rust inhibitor JK 203A-10 with different addition amounts is used for experimental testing.

Table 10 Chemicals Example four Example five Example Six Example Seven Example one Comparative Example 44 g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 30.29 15.75 30.00 15.75 29.44 15.75 28.90 15.75 28.38 15.75 27.88 Copper corrosion inhibitor 0.25 0.48 0.25 0.48 0.25 0.47 0.25 0.46 0.25 0.45 0.25 0.44 CP-NF-3 1 1.92 1 1.90 1 1.87 1 1.83 1 1.80 1 1.77 Water-based rust inhibitor 0.5 0.96 1 1.90 2 3.74 3 5.50 4 7.21 5 8.85 water 34.5 66.35 34.5 65.71 34.5 62.16 34.5 64.49 34.5 62.16 34.5 64.49 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent time Aluminum corrosion results 2H 1b 1b 1b~2b 1b~2b 1b~2b 3b 4H 1b 1b 1b~2b 1b~2b 2b 24H 1b~2b 1b~2b 1b~2b 1b~2b 2b 72H 1b~2b 1b~2b 1b~2b 1b~2b 2b Cast iron corrosion results 10 days ◎ 1 day ◎ 10 days ○ 8 days ◎ 10 days ○ 10 days ◎ 10 days ◎

From Examples 1, 4 to 7 and Example 44 in Table 10, it can be seen that when CP-NF-3 containing phosphate derivatives manufactured by Lubrizol is used as an aluminum corrosion inhibitor, the water-based The anti-rust agent JK 203A-10 starts to play the anti-rust function of cast iron when the addition amount reaches 0.5g, but when the addition amount reaches 5g (ie Comparative Example 44), although the appearance is still transparent and clear, the aluminum corrodes The suppression effect is greatly reduced. Therefore, it can be seen from Table 10 that when the aluminum corrosion inhibitor CP-NF-3 is 1 gram, the addition amount of the water-based rust inhibitor JK 203A-10 is preferably 0.5 to 4 grams.

Table 11 Chemicals Example eight Example 9 Example ten Example 11 Example two Comparative Example 45 Comparative Example 46 Comparative Example 47 g wt% g wt% g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 30.29 15.75 30.00 15.75 29.44 15.75 28.90 15.75 28.38 15.75 27.88 15.75 27.39 15.75 26.92 Copper corrosion inhibitor 0.25 0.48 0.25 0.48 0.25 0.47 0.25 0.46 0.25 0.45 0.25 0.44 0.25 0.43 0.25 0.43 MDIT 1 1.92 1 1.90 1 1.87 1 1.83 1 1.80 1 1.77 1 1.74 1 1.71 Water-based rust inhibitor 0.5 0.96 1 1.90 2 3.74 3 5.50 4 7.21 5 8.85 6 10.43 7 11.97 water 34.5 66.35 34.5 65.71 34.5 62.16 34.5 64.49 34.5 62.16 34.5 64.49 34.5 60.00 34.5 58.97 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent time Aluminum corrosion results 2H 1b 1b 1b~2b 1b~2b 1b 1b 1b 3b 4H 1b 1b 1b~2b 1b~2b 1b 1b 1b 24H 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 1b 1b 72H 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b Cast iron corrosion results 10 days ◎ 10 days ◎ 10 days ◎ 10 days ◎ 10 days ◎ 10 days ◎ 3 days ◎ 10 days ○

From Examples 2, 8 to 11 and Comparative Examples 45 to 47 in Table 11, it can be seen that when MDIT containing phosphate derivatives manufactured by Clariant is used as an aluminum corrosion inhibitor, the The water-based rust inhibitor JK 203A-10 starts to play the anti-rust function of cast iron when the addition amount reaches 0.5 g, but when the addition amount reaches 7 g (ie Comparative Example 47), although the appearance is still transparent and clear, its appearance The aluminum corrosion inhibitory effect is greatly reduced. Therefore, from Table 11, when the aluminum corrosion inhibitor MDIT is 1 gram, the addition amount of the water-based rust inhibitor JK 203A-10 is preferably 0.5 to 6 grams.

Table 12 Chemicals Example 12 Embodiment 13 Example Fourteen Example 15 Example three Comparative Example 48 Comparative Example 49 g wt% g wt% g wt% g wt% g wt% g wt% g wt% Water-soluble compounding agent 15.75 30.29 15.75 30.00 15.75 29.44 15.75 28.90 15.75 28.38 15.75 27.88 15.75 27.39 Copper corrosion inhibitor 0.25 0.48 0.25 0.48 0.25 0.47 0.25 0.46 0.25 0.45 0.25 0.44 0.25 0.43 ALI 1 1.92 1 1.90 1 1.87 1 1.83 1 1.80 1 1.77 1 1.74 Water-based rust inhibitor 0.5 0.96 1 1.90 2 3.74 3 5.50 4 7.21 5 8.85 6 10.43 water 34.5 66.35 34.5 65.71 34.5 62.16 34.5 64.49 34.5 62.16 34.5 64.49 34.5 60.00 Exterior Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent Brown transparent time Aluminum corrosion results 2H 1b 1b 1b~2b 1b~2b 1b~2b 1b 3b 4H 1b 1b 1b~2b 1b~2b 1b~2b 1b 24H 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 1b~2b 72H 1b~2b 1b~2b 1b~2b 1b~2b 2b 1b~2b Cast iron corrosion results 10 days ○ 10 days ○ 10 days ◎ 10 days ◎ 10 days ◎ 10 days ◎

From Examples 3, 12 to 15 and Comparative Examples 48 to 49 in Table 12, it can be seen that when Innoan ALI containing phosphate derivatives sold by Innovision is used as an aluminum corrosion inhibitor, the water-based anticorrosion The rust agent JK 203A-10 starts to play the anti-rust function of cast iron when the addition amount reaches 0.5 g, but when the addition amount reaches 6 g (ie Comparative Example 49), although the appearance is still transparent and clear, the aluminum corrodes The suppression effect is greatly reduced. Therefore, it can be seen from Table 12 that when the aluminum corrosion inhibitor ALI is 1 gram, the addition amount of the water-based rust inhibitor JK 203A-10 is preferably 0.5 to 5 grams.

It can be seen from Table 10 to Table 12 that when CP-NF-3, MDIT or Innoan ALI is used as the aluminum corrosion inhibitor, the optimal addition amount of the water-based rust inhibitor JK 203A-10 ranges from 0.5 to 4 grams. , Converting the addition amount (g) of each component in Tables 10 to 12 into the weight percentage interval of the total formula shows that the water-soluble compounding agent Lubrizol ^® 5481 of the aluminum alloy cutting fluid is 27.3-30.3 wt%, and the aluminum corrosion inhibitor CP-NF-3, MDIT or Innoan ALI is 1.7-1.95 wt%, the copper corrosion inhibitor Irgament ^® 42 is 0.43-0.48 wt%, the water-based rust inhibitor JK 203A-10 is 0.95-11 wt%, and water When it is 60-66.4 wt%, the aluminum alloy cutting liquid phase not only has good anti-rust performance and aluminum corrosion inhibition performance, but also has good emulsion stability compared with other comparative examples.

The above is only an explanation of the embodiment of this creation, and cannot be used to limit the scope of patent of this creation. Any simple modification or change made without going beyond the spirit of this creation should be covered by the scope of the patent application for this creation.

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Claims (3)

An aluminum alloy cutting fluid, which contains: Water-soluble compounding agent 27.3-30.3 wt%, containing fatty acid amide (Fatty acid amide), N,N'-methylenebismorpholine (N,N'-methylenebismorpholine), Diethylene glycol monobutyl ether (Diethylene glycol monobutyl ether), and diethanolamine (Diethanolamine); Aluminum corrosion inhibitor 1.7-1.95wt%, containing CP-NF-3 manufactured by Lubrizol and containing phosphate derivatives or manufactured by Clariant and containing phosphate derivatives Innoan ALI containing phosphate derivatives sold by Innovision or Innoan ALI; Copper corrosion inhibitor 0.43-0.48 wt%, containing toluotriazole derivatives; Water-based rust inhibitor 0.95-11 wt%, containing JK 203A-10 containing boric acid derivatives sold by Triol International Trading Co., Ltd.; and Water 60-66.4 wt%. The aluminum alloy cutting fluid according to claim 1, wherein the water-soluble compounding agent contains Lubrizol ^® 5481 manufactured by Lubrizol. The aluminum alloy cutting fluid according to claim 1, wherein the copper corrosion inhibitor contains Irgament ^® 42 manufactured by BASF.