Corrosion inhibitor for 7075 aluminum alloy, micro-emulsification processing stock solution and preparation method thereof

A technology for processing raw liquid and corrosion inhibitor, which is applied in the direction of additives, petroleum industry, lubricating composition, etc., can solve the problems of increasing environmental burden and not meeting the sustainable development of green economy, achieve good corrosion inhibition effect and reduce phosphorus discharge , the effect of excellent lubricity

Inactive Publication Date: 2019-01-18
高雨沛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phosphorus content in the processing fluid system using phosphorus-based corrosion inhibitors alone is relatively high, and the volume fraction of phosphorus-containing compounds in the processing stock solution reaches 1.8%-2.5%. The dilution of the original solution will discharge about 1 kg of phosphorus-containing compounds, resulting in eutrophication of the water body and increasing the burden on the environment, which is not in line with the concept of sustainable development of the green economy.

Method used

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  • Corrosion inhibitor for 7075 aluminum alloy, micro-emulsification processing stock solution and preparation method thereof
  • Corrosion inhibitor for 7075 aluminum alloy, micro-emulsification processing stock solution and preparation method thereof
  • Corrosion inhibitor for 7075 aluminum alloy, micro-emulsification processing stock solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1- Embodiment 18

[0036] Example 1 to Example 18 provide a total of 18 corrosion inhibitors for 7075 aluminum alloy, and their formulations are as follows:

[0037] Numbering

Fatty alcohol polyoxyethylene ether phosphate corrosion inhibitor dosage (mL)

Water-soluble imidazoline corrosion inhibitor dosage (mL)

Example 1

0.1

0.4

Example 2

0.1

0.6

Example 3

0.1

0.8

Example 4

0.3

0.4

Example 5

0.3

0.6

Example 6

0.3

0.8

Example 7

0.5

0.4

Example 8

0.5

0.6

Example 9

0.5

0.8

Example 10

0.05

0.4

Example 11

0.05

0.6

Example 12

0.05

0.8

Example 13

0.1

0.1

Example 14

0.1

0.2

Example 15

0.1

0.3

Example 16

0.05

0.1

Example 17

0.05

0.2

Example 18

0.05

0.3

[0038] Table 1

[0039] Among them, the sources of fatty alcohol polyoxyethylene ether phosphate corrosion inhibitor and water-soluble imidazoline corrosion inhibitor are preferably as follows:

[0040] name

Types of

Manufacturer

Water-soluble imidazoline corrosion inhibitor

Quaternary ammonium cationic imidazoline

Shandong Yousuo Chemical Techno...

Embodiment 19- Embodiment 27

[0046] Example 19-Example 27 provide 9 kinds of corrosion inhibitors for 7075 aluminum alloy, and their formulations are as follows:

[0047] Numbering

Fatty alcohol polyoxyethylene ether phosphate corrosion inhibitor dosage (mL)

Polyepoxysuccinic acid corrosion inhibitor dosage (mL)

Example 19

0.3

0.3

Example 20

0.3

0.9

Example 21

0.3

1.5

Example 22

0.1

0.1

Example 23

0.1

0.3

Example 24

0.1

0.5

Example 25

0.05

0.1

Example 26

0.05

0.2

Example 27

0.05

0.3

[0048] table 3

[0049] Among them, fatty alcohol polyoxyethylene ether phosphate corrosion inhibitor and polyepoxysuccinic acid corrosion inhibitor are preferably as follows:

[0050] name

Types of

Manufacturer

Polyepoxysuccinic acid

PESA multiple scale and corrosion inhibitor

Shandong Yousuo Chemical Technology Co., Ltd.

Fatty alcohol polyoxyethylene ether phosphate

AEO-3P

Shandong Yousuo Chemical Technology Co., Ltd.

[0051] Table 4

[0052] Among them, the molecular formula of AEO-3P is R(C 2 H 4 O) 3 OPO 3...

Embodiment 28- Embodiment 49

[0056] Examples 28-49 provide a total of 22 kinds of 7075 aluminum alloy microemulsion processing stock solutions with a combination of fatty alcohol polyoxyethylene ether corrosion inhibitor and water-soluble imidazoline corrosion inhibitor as corrosion inhibitors. The formulation ratios are as follows table 5:

[0057]

[0058] table 5

[0059] Wherein, the source of each component is preferably the following Table 6:

[0060]

[0061]

[0062] Table 6

[0063] The water is preferably deionized water.

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PUM

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Abstract

The invention belongs to the technical field of metal processing fluid, aims at solving the problem that the processing fluid for 7075 aluminum alloy is excessively high in phosphorus content, and discloses a corrosion inhibitor for the 7075 aluminum alloy. The corrosion inhibitor for the 7075 aluminum alloy is prepared from 0.05 to 0.3 part by volume of phosphorus-containing corrosion inhibitor and 0.1 to 1.5 parts by volume of phosphorus-free corrosion inhibitor; the weight percentage of fatty alcohol-polyoxyethylene ether phosphate in the phosphorus-containing corrosion inhibitor is greaterthan or equal to 95 percent; the phosphorus-free corrosion inhibitor is a water-soluble imidazoline corrosion inhibitor or polyepoxysuccinic acid corrosion inhibitor; and the weight percentage of imidazoline cationic compound in the water-soluble imidazoline corrosion inhibitor is greater than or equal to 20 percent, and the weight percentage of polyepoxy succinate in the polyepoxysuccinic acid corrosion inhibitor is greater than or equal to 40 percent. The water-soluble imidazoline corrosion inhibitor or polyepoxysuccinic acid with no corrosion inhibition effect or poor corrosion inhibitioneffect for 7075 aluminum alloy is compounded with fatty alcohol-polyoxyethylene ether phosphate, so that the same and even better corrosion inhibition effect can be achieved by utilizing less phosphorus compound, and the phosphorus emission amount can be reduced.

Description

Technical field [0001] The invention belongs to the technical field of metal working fluids, and specifically relates to a corrosion inhibitor for 7075 aluminum alloy, a microemulsion processing stock solution for 7075 aluminum alloy and a preparation method thereof. Background technique [0002] The metal cutting process is the process of using a machine tool to grind or cut the excess metal on the device with an abrasive tool to obtain a workpiece that meets the process requirements. During the machining process, the frictional heat between the abrasive or tool and the workpiece causes the local high temperature of the machine tool. This local high temperature will cause changes in the physical and mechanical properties of the metal materials, and the changes in the properties of the materials will in turn affect the machining process. In itself, it is easy to produce consequences such as severe tool wear, reduced surface machining accuracy of the workpiece, and poor surface qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/10C10M133/46C10M153/04C10M173/00C10N40/22C10N30/12C10N30/06C10N30/04
CPCC10M133/46C10M153/04C10M173/00C10M2203/1006C10M2209/103C10M2209/104C10M2209/108C10M2209/109C10M2215/042C10M2215/224C10M2219/044C10M2225/04C10M2229/041C10N2010/02C10N2030/04C10N2030/06C10N2030/12C10N2030/64C10N2040/22C10N2040/245C23F11/10
Inventor 高雨沛
Owner 高雨沛
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