CN115521825B

CN115521825B - Water-based stamping liquid and preparation method and application thereof

Info

Publication number: CN115521825B
Application number: CN202211382122.2A
Authority: CN
Inventors: 何流; 鲁斐; 李小磊; 伍德民
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-11-21
Anticipated expiration: 2042-11-07
Also published as: CN115521825A

Abstract

The application provides a water-based stamping liquid and a preparation method and application thereof. The water-based stamping liquid comprises the following components in parts by weight: 14-18 parts of organic alkali, 10-15 parts of extreme pressure agent and 5-15 parts of oiliness agent, wherein the solvent is water; the oily agent consists of C16-C20 organic acid and C8-C12 organic acid according to the mass ratio of 70:30-95:5. The water-based stamping liquid provided by the application has good extreme pressure lubrication effect and low use concentration, and can meet the stamping processing requirement of metal, especially high-strength stainless steel.

Description

Water-based stamping liquid and preparation method and application thereof

Technical Field

The application belongs to the technical field of lubricating liquid for machining, and particularly relates to water-based stamping liquid, and a preparation method and application thereof.

Background

Stainless steel is a material resistant to corrosive media such as air, steam, brine and the like, and has been widely applied to the manufacturing fields such as food and restaurant, medical equipment, household appliances, automobiles, pressure vessels, aerospace and the like since the beginning of the 20 th century. As an important component in the machining system, stainless steel stamping processing is of great importance to the development of national life.

Because stainless steel has the characteristics of high yield strength, large yield ratio, low material elongation and the like, the problems of workpiece breakage, abrasion, cracking and the like easily occur in stamping processing, and the die is worn. To alleviate such conditions, lubricants used in stainless steel stamping processes are required to have the following characteristics: (1) The extreme pressure property is good, and the good lubricating performance can be maintained under the action of high deformation pressure; (2) High temperature resistance, and no decomposition or deterioration in the processing process; (3) having cooling property to prevent overheating of the mold; and (4) corrosion prevention, rust prevention, environmental protection and no harm.

Common types of plastic working lubricants include stamping lubricants, solid stamping lubricants, water-based stamping lubricants, and the like. The water-based stamping lubricant has the advantages of good cooling property, long service life, good forming effect, safe storage and use, environment friendliness, easiness in waste liquid treatment, lower cost and the like, and is increasingly widely applied. At present, most of lubricating media adopted in stainless steel stamping processing are lubricating oil or solid lubricant, and the lubricating agents can meet the working condition demands, but have higher cost, and tend to have lower service life and poorer cooling property.

At present, the application of the water-based processing liquid to stainless steel stamping has less published materials. In CN114437862A, CN 109735388B, CN 107384567A, CN 104560353A and CN 104498168A, CN 104212619A, CN 104212621A, CN 102787010B, CN 101255377B, CN 102604731A, CN 101260339B, the described scheme can be applied to stamping of soft and easy-to-process metals such as aluminum foil and copper-zinc alloy, and has the defects of higher use concentration, poor extreme pressure performance and difficult stamping of high-strength stainless steel. CN108865382a discloses a plant-based water-soluble stamping oil, wherein a large proportion of chlorine-based, phosphorus-based, sulfur-based lubricants and rust inhibitors are added, and the two additives form competitive adsorption on the metal surface, thereby reducing the action effect; although the abstract is used by adding water, the usage mode described in the specification is still that the stock solution is directly used, the use cost is high, the abrasion resistance of the stock solution is low, and the stamping processing requirement of high-strength stainless steel is difficult to meet.

Therefore, there is a need in the art to develop a water-based stamping fluid that has good lubricity and low use concentration and can be used for stamping processing of high-strength stainless steel.

Disclosure of Invention

Aiming at the defects existing in the prior art, the application aims to provide a water-based stamping liquid and a preparation method and application thereof. The water-based stamping liquid has good extreme pressure lubrication effect and low use concentration, and can meet the stamping processing requirement of metal, particularly high-strength stainless steel.

To achieve the purpose, the application adopts the following technical scheme:

in a first aspect, the application provides a water-based stamping liquid, which comprises the following components in parts by weight:

14-18 parts of organic alkali, 10-15 parts of extreme pressure agent and 5-15 parts of oiliness agent, wherein the solvent is water;

the oily agent consists of C16-C20 organic acid and C8-C12 organic acid according to the mass ratio of 70:30-95:5.

Wherein, the weight parts of the organic base can be 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts, 16.5 parts, 17 parts, 17.5 parts or 18 parts, etc.

The weight parts of the extreme pressure agent can be 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts, etc.

The weight portion of the oily agent can be 5 portions, 6 portions, 7 portions, 8 portions, 9 portions, 10 portions, 11 portions, 12 portions, 13 portions, 14 portions or 15 portions, etc.

The mass ratio of the C16-C20 organic acid to the C8-C12 organic acid may be 70:30, 72:28, 75:25, 78:22, 80:20, 82:18, 85:15, 88:12, 90:10, 92:8, 95:5, or the like.

Organic base

In order to ensure the lubricating property of the stamping liquid, proper extreme pressure agent and oiliness agent are required to be added. Most of the existing extreme pressure agents and oiliness agents are oil-soluble substances, and the existing extreme pressure agents and oiliness agents have poor dispersibility in water. The application adopts organic alkali, which can react with the oiliness agent or with the oiliness agent and the extreme pressure agent to generate water-soluble substances which are evenly dispersed in water, thereby improving the lubrication effect of the water-based stamping liquid; on the other hand, the pH can be adjusted to ensure that the pH of the water-based stamping liquid meets the practical requirement, for example, the pH=8-10 of the optimal corrosion resistance interval of the copper piece of the stamping die.

In some embodiments of the application, the organic base is an organic amine.

In some embodiments of the application, the organic base is selected from one or more of monoethanolamine, diethanolamine, triethanolamine, diglycolamine, tricyclohexylamine, dimethylamine, diethylamine, aniline, and tetrahydroxymethylamine.

In some embodiments of the application, the organic base consists of monoethanolamine and triethanolamine.

In some embodiments of the application, the organic base is composed of monoethanolamine and triethanolamine in a mass ratio of 0.28-0.43:1, which may be, for example, 0.28:1, 0.3:1, 0.32:1, 0.35:1, 0.38:1, 0.4:1, or 0.43:1, etc.

The monoethanolamine and the triethanolamine have high safety, can not generate respiratory tract irritant substances, and can not cause damage when contacting skin. The triethanolamine has good stability and a certain anti-corrosion effect on metal materials, but when the triethanolamine is singly used, the required addition amount is higher in order to meet the alkaline requirement, and the hydrophilicity of the triethanolamine is insufficient due to the larger proportion of the hydrocarbyl content, so that the transparency of the water-based stamping liquid does not meet the standard; monoethanolamine has higher alkalinity, but when the content is too high, the pH of the water-based stamping liquid exceeds the optimal corrosion resistance interval (pH=8-10) of the copper piece, and damage is caused to parts. And the monoethanolamine and the triethanolamine are matched according to a proper proportion, so that the advantages of the monoethanolamine and the triethanolamine can be combined, and a good synergistic effect is achieved.

Extreme pressure agent

The extreme pressure agent is a heavy load additive which forms an extreme pressure lubricating film with the surface of the friction pair under extreme severe conditions such as high temperature, high pressure and the like. The stainless steel difficult to process needs higher pressure to generate deformation, and generates a large amount of heat in the stamping deformation process, so that an extreme pressure agent needs to be added into the stamping liquid to meet the lubricating performance under extreme conditions.

In some embodiments of the application, the extreme pressure agent is selected from one or more of chlorinated fatty acids, chlorinated paraffins, chlorinated fatty acid esters, phosphoric acid esters, ammonium phosphate salts, phosphamides, sulphurised greases, sulphurised olefins and benzylsulphur.

The extreme pressure performance of the chlorinated fatty acid is excellent, stainless steel is difficult to corrode and punch in actual use, water-soluble substances are easy to form with organic alkali, and the lubricating effect of the water-based punching liquid can be further improved by matching with the oiliness agent. Thus, the extreme pressure agent in the present application is preferably a chlorinated fatty acid. The carbon number of the chlorinated fatty acids is not particularly limited in the present application, and may be, for example, 18.

Oily agent

The oiliness agent can be adsorbed on the friction surface through polar groups to form a molecular orientation adsorption film to prevent metals from contacting each other, thereby reducing friction and abrasion. Because the extreme pressure agent needs to act under the severe conditions of high temperature and high pressure and is difficult to play a role in lubrication at normal temperature and low load, the oil agent needs to be added into the stamping liquid to ensure the lubrication performance of the stainless steel stamping process at normal temperature and normal pressure.

According to the application, organic acids with different carbon chain lengths are compounded in a specific proportion to be used as an oiliness agent, so that the organic acids can be adsorbed on the surface of a friction pair more completely, a uniform and continuous high-strength lubricating film is formed, and the lubricating effect of the water-based stamping liquid is improved. The long carbon chain organic acid has higher strength, but has relatively larger steric hindrance, and when the content of the long carbon chain organic acid is too high, the continuity of a lubricating film is reduced, and the lubricating effect of the water-based stamping liquid is reduced; the medium-short carbon chain organic acid can be adsorbed on the surface of the friction pair more, so that the continuity of the lubricating film is improved, but when the content of the medium-short carbon chain organic acid is too high, the strength of the lubricating film is insufficient, and the lubricating effect of the water-based stamping liquid is reduced.

In some embodiments of the application, the mass ratio of the C16-C20 organic acid to the C8-C12 organic acid is from 75:25 to 82:18.

In some embodiments of the application, the C16-C20 organic acid is selected from one or more of oleic acid, tall oil, lard, whale oil, palm oil fatty acid, preferably tall oil.

In some embodiments of the application, the C8-C12 organic acid is selected from one or more of neodecanoic acid, n-octanoic acid, isononanoic acid, isooctanoic acid, dodecanoic acid, preferably neodecanoic acid.

Tall oil and neodecanoic acid are low in cost, good in lubricating performance, strong in solubilisation and certain in hard water resistance and foam resistance. Thus, the oily agent in the present application preferably consists of tall oil and neodecanoic acid.

Corrosion inhibitor

Because the die used in the stamping process of part of stainless steel contains copper and aluminum, certain corrosion effects can be generated by extreme pressure agents, organic alkali and other components in the additive, and in order to relieve the corrosion, the water-based stamping liquid also preferably comprises a corrosion inhibitor.

In some embodiments of the application, the corrosion inhibitor is 0.3 to 0.8 parts by weight; for example, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, or 0.8 part, etc. may be used.

In some embodiments of the application, the corrosion inhibitor is selected from one or more of N, N-dialkylaminomethylene benzotriazole, methylbenzotriazole, and sodium salt of methylbenzotriazole.

The benzotriazole and the sodium salt of the methylbenzotriazole have stronger water solubility and can exist in the stamping liquid more stably, so that the corrosion inhibitor is preferably benzotriazole and/or sodium salt of the methylbenzotriazole.

Complexing agent

During stamping, some of the metal may precipitate in ionic form. In order to alleviate discoloration of the surface of the stamping part and loss of the stamping die caused by precipitation of metal ions, the water-based stamping liquid preferably further comprises a complexing agent.

In some embodiments of the application, the complexing agent is present in an amount of 0.1 to 0.2 parts by weight; for example, 0.1 part, 0.11 part, 0.12 part, 0.15 part, 0.16 part, 0.18 part, or 0.2 part, etc. may be used.

In some embodiments of the application, the complexing agent is selected from one or more of disodium ethylenediamine tetraacetate, tetrasodium ethylenediamine tetraacetate, sodium tripolyphosphate, sodium pyrophosphate, sodium hexametaphosphate, heptonate, sodium gluconate, sodium alginate, hydroxyethylidene diphosphate, and maleic acid acrylic acid copolymer.

The disodium ethylenediamine tetraacetate has strong complexing capability and high concentration stability, and can exist in the stamping liquid stably. Therefore, the complexing agent in the application is selected to be disodium ethylenediamine tetraacetate.

Defoaming agent

Defoamers are substances that reduce the surface tension of water, solutions, suspensions, etc., prevent foam formation, or reduce or eliminate the original foam. In order to prevent the stamping part and the die from being damaged due to bubbles generated in the stamping liquid during use, the water-based stamping liquid preferably further comprises a defoaming agent.

In some embodiments of the application, the defoamer is present in an amount of 0.15 to 0.4 parts by weight; for example, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, or 0.4 parts, etc. may be used.

In some embodiments of the application, the defoamer is selected from one or more of glycerol polyoxyethylene ether, polyvinyl alcohol, higher alcohols, silicone defoamers, and polyether modified silicone defoamers.

The organic silicon defoamer can be well dispersed in water, has excellent defoaming property, and can meet the performance and use requirements of the stamping liquid only by a small amount. Therefore, the defoamer in the present application is preferably a silicone defoamer.

In some embodiments of the application, the water-based stamping liquid has a solids content of 0.725% or more; for example, 0.725%, 0.75%, 0.78%, 0.8%, 0.82%, 0.85%, 0.88%, 0.9%, 0.92%, 0.95%, 0.98%, 1%, 1.1%, 1.2%, 1.3%, 1.5%, 1.8%, 2%, 2.5%, 3%, 3.5%, 4% or 4.3% may be used. Preferably 0.9% or more. More preferably 0.9 to 4.3%.

The optimal corrosion resistance interval of the copper part of the stamping die is pH=8-10, and in order to match the corrosion resistance interval, the damage of stamping liquid to parts is reduced, and the pH of the water-based stamping liquid is preferably 8-10; for example, 8, 8.2, 8.5, 8.8, 9, 9.2, 9.5, 9.8 or 10, etc.

In a second aspect, the present application provides a method for producing the water-based stamping liquid according to the first aspect, the method comprising the steps of:

and mixing the components with water according to a proportion until the mixture is clear and transparent, thus obtaining the water-based stamping liquid.

In some embodiments of the application, the preparation method comprises the steps of:

(1) Mixing organic base, extreme pressure agent and oily agent, and stirring at 50-55deg.C until the solution is clear;

(2) Adding water into the mixed solution obtained in the step (1), and stirring until the solution is clear;

(3) And (3) optionally adding a corrosion inhibitor, a complexing agent and a defoaming agent into the mixed solution obtained in the step (2), uniformly stirring, and diluting with water or not to obtain the water-based stamping liquid.

The preparation method provided by the application comprises the steps of firstly mixing the organic alkali, the extreme pressure agent and the oiliness agent, enabling the organic alkali, the extreme pressure agent and the oiliness agent to react to generate water-soluble substances which can be uniformly dispersed in water, then adding water, mixing until the water is clear and transparent, and finally adding the corrosion inhibitor, the complexing agent and the defoaming agent, thereby ensuring that all components are uniformly dispersed, and the obtained water-based stamping liquid is transparent and uniform.

The term "optionally added with a corrosion inhibitor, a complexing agent and a defoaming agent" as used herein means that the corrosion inhibitor, the complexing agent and the defoaming agent are added or not, and whether the addition or not depends on whether the water-based stamping liquid contains the component or not.

In the application, when the water-based stamping liquid is prepared, the high-concentration water-based stamping liquid stock solution can be prepared first, and the stock solution is diluted with water to the required solid content when in use.

The water-based stamping liquid stock solution preferably comprises the following components in percentage by mass: 14-18% of organic alkali, 10-15% of extreme pressure agent, 5-15% of oiliness agent, 0.3-0.8% of corrosion inhibitor, 0.1-0.2% of complexing agent, 0.15-0.4% of defoamer and the balance of water.

In a third aspect, the present application provides the use of a water-based stamping liquid according to the first aspect for stamping of metals, preferably stainless steel.

Compared with the prior art, the application has the following beneficial effects:

(1) The lubricity is good: the extreme pressure agent and the oiliness agent can be effectively dispersed in the stamping liquid, and a uniform and continuous high-strength lubricating film can be formed on the surface of metal when the stamping liquid is used, so that the stamping liquid has higher lubricating property, the stamping process is smoothly carried out, the abrasion of stamping parts and grinding tools is reduced, and the stamping processing requirement of metal, particularly high-strength stainless steel, can be met;

(2) the stamping liquid water-based substance provided by the application is safe and environment-friendly, is safe to store, has no irritation to skin and respiratory tract during use, is easy to degrade and is environment-friendly;

(3) The rust resistance is good: by optimizing the organic alkali components and adding the corrosion inhibitor, the pH value of the water-based stamping liquid can be maintained between 8.0 and 10.0 in the use process, so that the corrosion of the stainless steel stamping part and the copper-containing stamping die can be effectively slowed down, and fungus reproduction is inhibited;

(4) Stability is high: by optimizing the organic alkali components, the water-based stamping liquid stock solution and the diluent are stable in state, cannot be subjected to layering, emulsion aggregation and other changes, and have long service life;

(5) The cost is low: the water-based stamping liquid provided by the application can be effectively used at the minimum of 0.725% of solid content, and can reduce the use cost.

Detailed Description

The technical scheme of the application is further described by the following specific embodiments. It should be apparent to those skilled in the art that the detailed description is merely provided to aid in understanding the application and should not be taken as limiting the application in any way.

In the embodiment of the application, the sources of partial raw materials are as follows:

monoethanolamine: junyan new material technology (Shanghai) limited;

triethanolamine: dows;

chlorinated fatty acids: teklube;

chlorinated paraffin: INEOS;

fatty alcohol polyether phosphate: REWOCOROS;

vulcanized grease: simin oil chemical Co., ltd;

lard oil: simin oil chemical Co., ltd;

tall oil: MWV;

neodecanoic acid: junyan new material technology (Shanghai) limited;

benzotriazole: silver Jiangyin Lin chemical industry Co., ltd;

sodium salt of methylbenzotriazole: silver Jiangyin Lin chemical industry Co., ltd;

disodium edetate: junyan new material technology (Shanghai) limited;

silicone defoamer: DAPRO.

In the embodiment of the application, the test method of the performance of the water-based stamping liquid is as follows:

transparency, pH, defoaming property and corrosiveness test method are carried out according to sections 5.1, 5.3, 5.4 and 5.6 of GB/T6144-2010.

The extreme pressure performance test method is carried out according to GB/T12583-1998, and the model of the tester is as follows: xiamen astronomical apparatus MS-10A.

The tapping torque testing method comprises the following steps: tapping rotation speed 800r/min, depth 20mm, maximum torque 400N cm, cutter: TTT-M4F-TIN-T; stainless steel test block: TTT-testbar1.0503-M4F/3.7 20mm, tester model: TAP TTTSsystem-G8.

The stability test method comprises the following steps: and (3) sealing and standing the test object for 12 hours at normal temperature, observing state change, and testing transparency before and after standing.

In the embodiment of the application, the water-based stamping liquid is prepared by adopting the following method:

(1) Mixing organic base, oily agent and extreme pressure agent, and stirring at 50deg.C until the solution is clear and transparent;

(2) Slowly adding deionized water into the mixed solution obtained in the step (1), and stirring until the solution is clear and transparent;

(3) Sequentially adding a corrosion inhibitor, a complexing agent and a defoaming agent into the mixed solution obtained in the step (2), and stirring until the solution is uniform to obtain a yellow semitransparent water-based stamping liquid stock solution;

(4) And diluting the water-based stamping liquid stock solution with water until the stock solution content is 2.5wt percent, so as to obtain the water-based stamping liquid.

Examples 1-1 to 1-7

Examples 1-1 to 1-7 each provide a water-based stamping liquid, wherein the composition of the water-based stamping liquid stock solution is shown in the following table 1:

TABLE 1

The pH, transparency and stability of the water-based stamping fluids provided in examples 1-1 to 1-7 are shown in Table 2 below:

TABLE 2

From the test results of Table 2, it can be seen that the pH, transparency and stability of the water-based stamping liquid satisfy the requirements when the mass ratio of monoethanolamine to triethanolamine is in the range of 0.28-0.43:1 (examples 1-1, 1-2, 1-3, 1-5, 1-6). When the mass ratio of monoethanolamine to triethanolamine is too large (examples 1-4), the pH of the water-based stamping liquid is too high, which exceeds the optimal corrosion resistance interval (ph=8-10) of the copper part of the stamping die, and the machine part is easily damaged; when the mass ratio of monoethanolamine to triethanolamine is too small (examples 1 to 7), the water dispersibility is poor due to insufficient hydrophilicity of triethanolamine, resulting in poor stability of the water-based stamping liquid, and transparency after standing is insufficient.

Examples 2-1 to 2-4 and comparative examples 2-1 to 2-3

Examples 2-1 to 2-4 and comparative examples 2-1 to 2-3 each provide a water-based press liquid in which the composition of the water-based press liquid stock solution is shown in the following table 3:

TABLE 3 Table 3

The extreme pressure properties and tapping torque test results of the water-based stamping fluids provided in examples 2-1 to 2-4 and comparative examples 2-1 to 2-3 are shown in table 4 below:

TABLE 4 Table 4

Sample of	Tapping torque (N cm)	P _B (kg)	P _D (kg)
				Comparative example 2-1	114.25	132	200
Example 2-1	113.72	132	200
				Example 2-2	113.14	139	200
Examples 2 to 3	112.78	139	200
				Examples 2 to 4	113.85	132	200
Comparative examples 2 to 2	122.25	119	160
				Comparative examples 2 to 3	135.97	109	126

As can be seen from the test results of Table 4, the mass ratio of tall oil to neodecanoic acid in examples 2-1 to 2-4 was in the range of 70:30 to 95:5, as compared with comparative examples 2-1 to 2-3, to obtain P of the water-based stamping liquid _B And/or P _D Higher values and lower tapping torque indicate that tall oil and neodecanoic acid have the effect of synergistically improving the lubricating properties of the water-based stamping fluids at the ratios of the present application.

Example 3-1 and comparative examples 3-1 to 3-2

Examples 3-1 and comparative examples 3-1 to 3-2 each provide a water-based stamping liquid in which the composition of the water-based stamping liquid stock solution is shown in the following table 5:

TABLE 5

The extreme pressure properties and tapping torque test results of the water-based stamping fluids provided in example 3-1 and comparative examples 3-1 to 3-2 are shown in table 6 below:

TABLE 6

Sample of	Tapping torque (N cm)	P _B (kg)	P _D (kg)
				Comparative example 3-1	116.24	126	160
Example 3-1	114.97	132	200
				Comparative example 3-2	134.22	109	126

As can be seen from the test results of Table 6, the mass ratio of lard to n-octanoic acid in example 3-1 was in the range of 70:30 to 95:5, as compared with comparative examples 3-1 to 3-2, to obtain P of the water-based stamping liquid _B And P _D The value is higher, the tapping torque is lower, and the pig oil and the n-octanoic acid have the effect of synergistically improving the lubricating property of the water-based stamping liquid under the proportion of the application.

Examples 4-1 to 4-7

Examples 4-1 to 4-7 each provide a water-based stamping liquid, wherein the composition of the water-based stamping liquid stock solution is shown in the following table 7:

TABLE 7

The extreme pressure properties and tapping torque test results for the water-based stamping fluids provided in examples 4-1 to 4-7 are shown in table 8 below:

TABLE 8

Examples 5-1 to 5-4

Examples 5-1 to 5-4 each provide a water-based stamping liquid, wherein the composition of the water-based stamping liquid stock solution is shown in the following table 9:

TABLE 9

The test results of the rust inhibitive performance of the water-based stamping liquids provided in examples 5-1 to 5-4 are shown in Table 10 below:

table 10

Sample of	Cast iron	Red copper	Aluminum alloy
				Example 5-1	Class A	Class A	Class A
Example 5-2	Class A	Class A	Class A
				Examples 5 to 3	Class A	Class B	Class B
Examples 5 to 4	Class A	Class A	Class B

Examples 6-1 to 6-3

Examples 6-1 to 6-3 each provide a water-based stamping liquid, wherein the composition of the water-based stamping liquid stock solution is shown in the following table 11:

TABLE 11

The results of the defoaming property test of the water-based stamping liquids provided in examples 6-1 to 6-3 are shown in Table 12 below:

table 12

Sample of	Defoaming property (mL/10 min)	Defoaming requirement
			Example 6-1	0.5	Qualified product
Example 6-2	0	Qualified product
			Examples 6 to 3	2.0	Qualified product
Comparative example 6-1	5.0	Failure to pass

The performance data is shown in Table 13 below, comparing the combined performance of a commercially available inlet high-end stainless steel-based stamping solution (Rhin, WS 610) with the water-based stamping solution provided in some examples of the application:

TABLE 13

As can be seen from the performance data in Table 13, the water-based stamping liquid provided by the application has better lubricating property, rust resistance and defoaming property than the commercial products.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The water-based stamping liquid is characterized by comprising the following components in parts by weight:

the oily agent consists of C16-C20 organic acid and C8-C12 organic acid according to the mass ratio of 75:25-82:18;

the C16-C20 organic acid is one or more selected from oleic acid, tall oil, lard fatty acid, whale oil fatty acid and palm oil fatty acid;

the C8-C12 organic acid is selected from one or more of neodecanoic acid, n-octanoic acid, isononanoic acid, isooctanoic acid and dodecanoic acid;

the organic base consists of monoethanolamine and triethanolamine according to the mass ratio of 0.28-0.43:1;

the extreme pressure agent is selected from one or more of chlorinated fatty acid, chlorinated paraffin, chlorinated fatty acid ester, phosphate, ammonium phosphate, phosphoramide, vulcanized grease, thioalkene and benzylsulfur;

the solid content of the water-based stamping liquid is more than 0.725%.

2. The water-based stamping liquid of claim 1, wherein the extreme pressure agent is a chlorinated fatty acid.

3. The water-based stamping liquid of claim 1, wherein the C16-C20 organic acid is tall oil.

4. The water-based stamping liquid of claim 1, wherein the C8-C12 organic acid is neodecanoic acid.

5. The water-based stamping liquid of claim 3 or 4, wherein the oiliness agent consists of tall oil and neodecanoic acid.

6. The water-based stamping liquid of claim 1, further comprising a corrosion inhibitor.

7. The water-based stamping liquid according to claim 6, wherein the corrosion inhibitor is 0.3-0.8 parts by weight.

8. The aqueous-based stamping liquid of claim 6, wherein the corrosion inhibitor is selected from one or more of N, N-dialkylaminomethylene benzotriazole, methylbenzotriazole, and sodium salt of methylbenzotriazole.

9. The water-based stamping liquid as claimed in claim 8, wherein the corrosion inhibitor is benzotriazole and/or sodium salt of methylbenzotriazole.

10. The water-based stamping liquid of claim 1, further comprising a complexing agent.

11. The water-based stamping liquid as claimed in claim 10, wherein the complexing agent is 0.1-0.2 parts by weight.

12. The water-based stamping liquid of claim 10, wherein the complexing agent is selected from one or more of disodium ethylenediamine tetraacetate, tetrasodium ethylenediamine tetraacetate, sodium tripolyphosphate, sodium pyrophosphate, sodium hexametaphosphate, heptonate, sodium gluconate, sodium alginate, hydroxyethylidene diphosphate, and maleic acid acrylic acid copolymer.

13. The aqueous-based stamping liquid of claim 12, wherein the complexing agent is disodium edetate.

14. The water-based stamping liquid of claim 1, further comprising an antifoaming agent.

15. The water-based stamping liquid as claimed in claim 14, wherein the defoaming agent is 0.15-0.4 parts by weight.

16. The water-based stamping liquid of claim 14, wherein the defoamer is selected from one or more of glycerol polyoxyethylene ether, polyvinyl alcohol, higher alcohols, silicone defoamers, and polyether modified silicone defoamers.

17. The water-based stamping liquid of claim 16, wherein the defoamer is a silicone defoamer.

18. The water-based stamping liquid according to claim 1, wherein the solid content of the water-based stamping liquid is 0.9% or more.

19. The water-based stamping liquid of claim 18, wherein the water-based stamping liquid has a solids content of 0.9-4.3%.

20. The water-based stamping liquid of claim 1, wherein the pH of the water-based stamping liquid is 8-10.

21. A method of producing the water-based stamping liquid as claimed in any one of claims 1 to 20, comprising the steps of:

22. The method of preparation according to claim 21, characterized in that the method of preparation comprises the steps of:

23. Use of a water-based stamping liquid as claimed in any one of claims 1 to 20, for stamping of metals.

24. The use according to claim 23, wherein the water-based stamping liquid is used for stamping of stainless steel.