Environment-friendly copper strip rolling liquid and preparation method thereof

Abstract

The invention relates to the technical field of copper plate strip rolling liquid, and provides environment-friendly copper plate strip rolling liquid which comprises the following components in percentage by mass: 40%-50% of base oil, 12%-18% of an additive, 5%-10% of triethanolamine, 0.05%-0.15% of graphene and the balance of water, the additives comprise a lubricant, an antioxidant, a corrosion inhibitor, an emulsifier and a bactericide, wherein the lubricant accounts for 2%-5%, the antioxidant accounts for 1%-2%, the corrosion inhibitor accounts for 0.5%-1.5%, the emulsifier accounts for 5%-10%, and the bactericide accounts for 2%-5%; the base oil comprises synthetic oil, vegetable oil and mineral oil, and the synthetic oil accounts for 20%-50%, the vegetable oil accounts for 15%-45% and the mineral oil accounts for 30%-60%. The rolling force and equipment energy consumption can be effectively reduced, the rolling speed stability is improved, the surface quality, hardness and thickness uniformity of the copper plate strip are remarkably improved, corrosion to equipment is lower, and the production quality and efficiency of the copper plate strip can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of copper plate and strip rolling liquid, and in particular to an environmentally friendly copper plate and strip rolling liquid and a preparation method thereof. Background Art

[0002] Copper strips are widely used in modern industry, and the rolling process is crucial in their production process. As an indispensable part of the rolling process, rolling fluid is directly related to the quality, production efficiency and environmental impact of copper strips. High-quality rolling fluid can ensure the good performance of copper strips during rolling, while meeting the company's requirements for cost control and environmental protection.

[0003] Traditional copper strip rolling fluids usually contain base oil, additives and other ingredients, which can meet basic rolling requirements to a certain extent. These rolling fluids can provide lubrication for the rolling process under specific process conditions, allowing the copper strip to pass smoothly between the rollers and achieve certain thickness and precision control. At the same time, through the action of some additives, the stability of the rolling fluid and the protection of the equipment can be maintained to a certain extent, ensuring the continuous progress of the rolling process.

[0004] However, there are many problems with traditional copper strip rolling fluids. In terms of lubrication performance, the friction coefficient of the rolling fluid in the prior art is relatively high. For example, the friction coefficient in the comparative example reaches 0.12, which makes the friction force during the rolling process relatively large, which not only increases the energy consumption of the equipment, but also may cause the surface quality of the copper strip to be damaged due to insufficient lubrication, resulting in scratches, high roughness and other problems, affecting product quality. In terms of rolling speed and pressure, the adaptability of traditional rolling fluids is limited. For example, the rolling speed range in the comparative example is only 10-80m / min, and the rolling pressure that can be tolerated is only 8-40MPa, which limits the improvement of the copper strip rolling production efficiency and cannot meet the high-speed and high-pressure rolling process for the production of copper strips of different specifications. From a cost perspective, although some existing rolling fluids have certain advantages in price, considering factors such as production efficiency and product quality, their cost performance is not optimal. In terms of environmental performance, traditional rolling fluid has poor biodegradability. For example, the rolling fluid in the comparative example will cause pollution to the environment after use, which does not meet the increasingly stringent environmental protection requirements and has potential harm to the ecological environment, which is not conducive to the sustainable development of the industry. In this regard, the present application proposes an environmentally friendly copper plate and strip rolling fluid and a preparation method thereof. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an environmentally friendly copper plate and strip rolling fluid and a preparation method thereof, which solves the problems of traditional copper plate and strip rolling fluid in terms of lubrication performance, environmental performance, cost, rolling speed and pressure.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an environmentally friendly copper strip rolling liquid, comprising the following components in percentage by mass:

[0007] Base oil 40%-50%, additives 12%-18%, triethanolamine 5-10%, graphene 0.05%-0.15%, and water as the balance;

[0008] The additives include lubricants, antioxidants, corrosion inhibitors, emulsifiers and fungicides, wherein the lubricant is 2% to 5%, the antioxidant is 1% to 2%, the corrosion inhibitor is 0.5% to 1.5%, the emulsifier is 5% to 10%, and the fungicide is 2% to 5%;

[0009] The base oil includes synthetic oil, vegetable oil and mineral oil, wherein the synthetic oil accounts for 20% to 50%, the vegetable oil accounts for 15% to 45%, and the mineral oil accounts for 30% to 60%.

[0010] Preferably, it comprises the following components in specific mass percentages:

[0011] Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, and water balance.

[0012] Preferably, the synthetic oil is 45% to 55%, the vegetable oil is 10% to 20%, and the mineral oil is 30% to 40%.

[0013] Preferably, the synthetic oil is 45% to 55%, the vegetable oil is 15% to 25%, and the mineral oil is 30% to 35%.

[0014] Preferably, the synthetic oil is 20% to 30%, the vegetable oil is 10% to 20%, and the mineral oil is 55% to 65%.

[0015] Preferably, the synthetic oil is 30% to 40%, the vegetable oil is 40% to 50%, and the mineral oil is 25% to 35%.

[0016] Preferably, the lubricant is 3%, the antioxidant is 1.5%, the corrosion inhibitor is 1%, the emulsifier is 8%, and the bactericide is 3%.

[0017] A method for preparing an environmentally friendly copper strip rolling liquid comprises the following steps:

[0018] Step 1: Add the base oil into the mixing container, start the agitator, stir at a speed of 100-200 r / min, so that the mineral oil forms a stable flow state in the container, then slowly add the vegetable oil, and gradually increase the stirring speed to 300-500 r / min, stir for 15-30 minutes, so that the mineral oil and the vegetable oil are fully mixed, then slowly add the synthetic oil in the same way as the vegetable oil, continue to stir after adding, increase the speed to 500-800 r / min, stir for 30-60 minutes, until the base oil is evenly mixed, and there is no obvious stratification or agglomeration in appearance;

[0019] Step 2: Add lubricant, antioxidant, corrosion inhibitor, emulsifier and fungicide to the base oil stirred evenly in step 1 in order according to the proportion, and after each additive is added, stir for 10 to 20 minutes, keep the speed at 500 to 800 r / min, and heat to 40 to 60° C. while stirring;

[0020] Step 3: slowly add triethanolamine to the base oil mixed with additives in step 2, stir for 10 to 20 minutes at a speed of 500 to 800 r / min; then slowly add graphene, and during the addition process, the stirring speed can be appropriately increased to 800 to 1000 r / min, and stir for 20 to 30 minutes to evenly disperse the graphene in the mixed solution;

[0021] Step 4: slowly add water to the evenly mixed solution in step 3, and continue stirring during the process of adding water. The speed can be maintained at 500-800r / min until all the water is added, and then continue stirring for 30-60 minutes to mix the entire solution evenly, and finally obtain an environmentally friendly copper plate and strip rolling liquid.

[0022] Preferably, the speed of adding the vegetable oil in step 1 is controlled to be 1 / 10 to 1 / 5 of the total volume of the vegetable oil added per minute.

[0023] Preferably, an oil ultrasonic dispersion device is provided during the addition of graphene in step 2 to disperse the graphene and avoid agglomeration.

[0024] The present invention provides an environmentally friendly copper strip rolling liquid and a preparation method thereof. The present invention has the following beneficial effects:

[0025] The present invention can effectively reduce rolling force and equipment energy consumption, improve rolling speed stability, and significantly improve the surface quality, hardness, and thickness uniformity of copper strips. At the same time, the rolling fluid of the present invention has good stability after use, can maintain good lubrication performance, and has lower corrosion to equipment, which is conducive to improving the production quality and efficiency of copper strips, reducing equipment maintenance costs, and extending the service life of equipment, meeting the production requirements of high efficiency and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The embodiment of the present invention provides an environmentally friendly copper plate and strip rolling liquid.

[0029] As one aspect of the present invention, the present invention provides an environmentally friendly copper strip rolling fluid comprising the following components in percentage by mass:

[0030] Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, the balance is water;

[0031] The additives include lubricants, antioxidants, corrosion inhibitors, emulsifiers and fungicides, wherein the lubricant is 3%, the antioxidant is 1.5%, the corrosion inhibitor is 1%, the emulsifier is 8% and the fungicide is 3%;

[0032] The base oil includes synthetic oil, vegetable oil and mineral oil, wherein the synthetic oil accounts for 20% to 50%, the vegetable oil accounts for 15% to 45%, and the mineral oil accounts for 30% to 60%.

[0033] As another aspect of the present invention, the preparation method of the above-mentioned environmentally friendly copper strip rolling liquid is as follows:

[0034] Step 1: Add the base oil into a mixing container, start the agitator, stir at a speed of 100-200 r / min, so that the mineral oil forms a stable flow state in the container, then slowly add the vegetable oil, wherein the vegetable oil addition speed is controlled to be 1 / 10-1 / 5 of the total volume of the vegetable oil per minute, and gradually increase the stirring speed to 300-500 r / min, stir for 15-30 minutes, so that the mineral oil and the vegetable oil are fully mixed, and then slowly add the synthetic oil in the same way as the vegetable oil, continue to stir after adding, increase the speed to 500-800 r / min, and stir for 30-60 minutes, until the base oil is evenly mixed and there is no obvious stratification or agglomeration phenomenon in appearance;

[0035] Step 2: Add lubricant, antioxidant, corrosion inhibitor, emulsifier and fungicide to the base oil stirred evenly in step 1 in order according to the proportion, and after each additive is added, stir for 10 to 20 minutes, keep the speed at 500 to 800 r / min, and heat to 40 to 60° C. while stirring;

[0036] Step 3: slowly add triethanolamine to the base oil mixed with additives in step 2, stir for 10 to 20 minutes at a speed of 500 to 800 r / min; then slowly add graphene, and during the addition process, the stirring speed can be appropriately increased to 800 to 1000 r / min, and stirred for 20 to 30 minutes. During this period, an ultrasonic dispersion device can be used to disperse the graphene to avoid agglomeration, so that the graphene is evenly dispersed in the mixed liquid;

[0037] Step 4: slowly add water to the evenly mixed solution in step 3, and continue stirring during the process of adding water. The speed can be maintained at 500-800r / min until all the water is added, and then continue stirring for 30-60 minutes to mix the entire solution evenly, and finally obtain an environmentally friendly copper plate and strip rolling liquid.

[0038] Embodiment 1:

[0039] An environmentally friendly copper plate and strip rolling fluid comprises the following components in specific mass percentages:

[0040] Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, the balance is water;

[0041] The base oil includes the following specific components, and in percentage by weight: synthetic oil: 50%, vegetable oil: 15% and mineral oil: 35%;

[0042] The additives include the following specific components in percentage by weight: lubricant: 3%, antioxidant: 1.5%, corrosion inhibitor: 1%, emulsifier: 8% and bactericide: 3%.

[0043] Embodiment 2:

[0044] An environmentally friendly copper plate and strip rolling fluid comprises the following components in specific mass percentages:

[0045] Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, the balance is water;

[0046] The base oil includes the following specific components in weight percentage: synthetic oil: 50%, vegetable oil: 20% and mineral oil: 30%;

[0047] The additives include the following specific components in percentage by weight: lubricant: 3%, antioxidant: 1.5%, corrosion inhibitor: 1%, emulsifier: 8% and bactericide: 3%.

[0048] Embodiment 3:

[0049] An environmentally friendly copper plate and strip rolling fluid comprises the following components in specific mass percentages:

[0050] Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, the balance is water;

[0051] The base oil includes the following specific components, and in percentage by weight: synthetic oil: 25%, vegetable oil: 15% and mineral oil: 60%;

[0052] The additives include the following specific ingredients, and the weight percentages are: lubricant: 3%, antioxidant: 1.5%, corrosion inhibitor: 1%, emulsifier: 8% and bactericide: 3%

[0053] Embodiment 4:

[0054] An environmentally friendly copper plate and strip rolling fluid comprises the following components in specific mass percentages:

[0055] Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, the balance is water;

[0056] The base oil includes the following specific components, and in percentage by weight: synthetic oil: 35%, vegetable oil: 45% and mineral oil: 30%;

[0057] The additives include the following specific components in percentage by weight: lubricant: 3%, antioxidant: 1.5%, corrosion inhibitor: 1%, emulsifier: 8% and bactericide: 3%.

[0058] Experimental example:

[0059] Five groups of copper strip rolling equipment of the same model were selected. Under the same rolling process parameters (such as rolling speed, rolling pressure, temperature, etc.), the environmentally friendly copper strip rolling liquid of the above embodiment and a traditional copper strip rolling liquid were respectively used to carry out copper strip rolling experiments. During the rolling process, the rolling force, rolling speed stability, and equipment energy consumption data of the equipment were recorded once every certain rolling length (such as every 500 meters of rolling). After the rolling was completed (a uniform total rolling length was set), the surface roughness, hardness, and thickness uniformity of the copper strip were tested, and at the same time, the stability of the rolling liquid (whether there was stratification or precipitation), the lubrication performance retention (by detecting the friction coefficient), the corrosion to the equipment (mm / year), the cost of the rolling liquid (yuan / ton), and the environmental protection index (biodegradability) were checked for comparative tests. The results are shown in Table 1 below.

[0060] Table 1:

[0061]

[0062] The results show that the environmentally friendly copper strip rolling fluid of the present invention can effectively reduce the rolling force and equipment energy consumption, improve the rolling speed stability, and significantly improve the surface quality, hardness and thickness uniformity of the copper strip compared with the traditional rolling fluid. At the same time, the rolling fluid of the present invention has good stability after use, can maintain good lubrication performance, and has lower corrosion to the equipment, which is conducive to improving the production quality and efficiency of copper strips, reducing equipment maintenance costs, and extending the service life of equipment, meeting the production requirements of high efficiency and environmental protection. At the same time, in terms of lubrication performance, a lower friction coefficient represents better lubricity. From the data, it can be seen that the lubrication performance of Example 2 is the best; in terms of rolling speed and pressure, the rolling speed range of Example 2 is wider and the pressure range that can be tolerated is also more suitable, indicating that it has better adaptability under different rolling conditions. In terms of cost, the cost of Example 3 is relatively low, but the cost increase of Example 2 is also within an acceptable range when the comprehensive performance is good. In terms of environmental protection indicators, the embodiments of the present invention perform well in terms of biodegradability, which is significantly better than the comparative example, reflecting the environmental protection advantage.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly copper strip rolling fluid, characterized in that: It includes the following components in percentage by weight: Base oil 40%-50%, additives 12%-18%, triethanolamine 5-10%, graphene 0.05%-0.15%, and water as the balance; The additives include lubricants, antioxidants, corrosion inhibitors, emulsifiers and fungicides, wherein the lubricant is 2% to 5%, the antioxidant is 1% to 2%, the corrosion inhibitor is 0.5% to 1.5%, the emulsifier is 5% to 10%, and the fungicide is 2% to 5%; The base oil includes synthetic oil, vegetable oil and mineral oil, wherein the synthetic oil accounts for 20% to 50%, the vegetable oil accounts for 15% to 45%, and the mineral oil accounts for 30% to 60%.

2. The environmentally friendly copper strip rolling fluid according to claim 1, characterized in that: It includes the following components in specific mass percentages: Base oil 45%, additives 16.5%, triethanolamine 8%, graphene 0.1%, and water balance.

3. The environmentally friendly copper strip rolling fluid according to claim 2, characterized in that: The synthetic oil accounts for 45% to 55%, the vegetable oil accounts for 10% to 20%, and the mineral oil accounts for 30% to 40%.

4. The environmentally friendly copper strip rolling fluid according to claim 2, characterized in that: The synthetic oil accounts for 45% to 55%, the vegetable oil accounts for 15% to 25%, and the mineral oil accounts for 30% to 35%.

5. The environmentally friendly copper strip rolling fluid according to claim 2, characterized in that: The synthetic oil accounts for 20% to 30%, the vegetable oil accounts for 10% to 20%, and the mineral oil accounts for 55% to 65%.

6. The environmentally friendly copper strip rolling fluid according to claim 2, characterized in that: The synthetic oil accounts for 30% to 40%, the vegetable oil accounts for 40% to 50%, and the mineral oil accounts for 25% to 35%.

7. An environmentally friendly copper strip rolling fluid according to any one of claim 2, characterized in that: The lubricant accounts for 3%, the antioxidant accounts for 1.5%, the corrosion inhibitor accounts for 1%, the emulsifier accounts for 8%, and the bactericide accounts for 3%.

8. A method for preparing an environmentally friendly copper plate and strip rolling liquid, using the environmentally friendly copper plate and strip rolling liquid as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Add the base oil into the mixing container, start the agitator, stir at a speed of 100-200 r / min, so that the mineral oil forms a stable flow state in the container, then slowly add the vegetable oil, and gradually increase the stirring speed to 300-500 r / min, stir for 15-30 minutes, so that the mineral oil and the vegetable oil are fully mixed, then slowly add the synthetic oil in the same way as the vegetable oil, continue to stir after adding, increase the speed to 500-800 r / min, stir for 30-60 minutes, until the base oil is evenly mixed, and there is no obvious stratification or agglomeration in appearance; Step 2: Add lubricant, antioxidant, corrosion inhibitor, emulsifier and fungicide to the base oil stirred evenly in step 1 in order according to the proportion, and after each additive is added, stir for 10 to 20 minutes, keep the speed at 500 to 800 r / min, and heat to 40 to 60° C. while stirring; Step 3: slowly add triethanolamine to the base oil mixed with additives in step 2, stir for 10 to 20 minutes at a speed of 500 to 800 r / min; then slowly add graphene, and during the addition process, the stirring speed can be appropriately increased to 800 to 1000 r / min, and stir for 20 to 30 minutes to evenly disperse the graphene in the mixed solution; Step 4: slowly add water to the evenly mixed solution in step 3, and continue stirring during the process of adding water. The speed can be maintained at 500-800r / min until all the water is added, and then continue stirring for 30-60 minutes to mix the entire solution evenly, and finally obtain an environmentally friendly copper plate and strip rolling liquid.

9. The method for preparing an environmentally friendly copper strip rolling fluid according to claim 8, characterized in that: The speed of adding the vegetable oil in step 1 is controlled to be 1 / 10 to 1 / 5 of the total volume of the vegetable oil added per minute.

10. The method for preparing an environmentally friendly copper strip rolling fluid according to claim 8, characterized in that: In the step 2, an oil ultrasonic dispersion device is provided during the addition of graphene to disperse the graphene and avoid agglomeration.

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