Which types of thermos cups are most widely used for electrolytic treatment?

Which types of Thermos Cups are most widely used for electrolytic treatment?

1. Overview of electrolytic treatment of thermos cups

1.1 Definition of electrolytic treatment
Thermos cup electrolytic treatment is a process for surface treatment of the inner liner of a thermos cup by the principle of electrolysis. During the electrolysis process, the inner liner of the thermos cup is placed in a specific electrolyte as an anode. Through the action of the current, an oxidation reaction occurs on the surface of the inner liner to form a dense oxide film. This oxide film can effectively improve the corrosion resistance, wear resistance and aesthetics of the thermos cup. For example, the surface hardness of the stainless Steel Thermos cup inner liner that has been electrolytically treated can be increased by about 30%, and the corrosion resistance can be increased by more than 50%, which significantly extends the service life of the thermos cup.

1.2 Purpose of electrolytic treatment
The main purposes of electrolytic treatment of thermos cups include:
Improving corrosion resistance: The inner liner of the thermos cup will come into contact with various liquids in daily use, such as acidic beverages, tea, etc., and is prone to corrosion. The oxide film formed by electrolytic treatment can effectively block the contact between the corrosive medium and the inner liner matrix, significantly improving the corrosion resistance of the thermos cup. Experiments show that the service life of the thermos cup treated with electrolysis can be extended by more than 3 times in a simulated acidic beverage environment.
Enhance wear resistance: The inner liner of the thermos cup will be frequently rubbed during use, such as cleaning and stirring. The oxide film after electrolysis has high hardness and wear resistance, which can effectively resist friction damage and keep the surface of the liner smooth and clean. The surface roughness of the thermos cup liner treated with electrolysis can be reduced by about 40%, and the wear resistance is improved by 60%.
Improve aesthetics: Electrolysis can make the surface of the thermos cup liner form a uniform color and gloss, improving the appearance quality of the product. In addition, by adjusting the electrolysis process parameters, different color and texture effects can be achieved to meet the personalized needs of consumers. For example, some high-end thermos cups can present a mirror-like gloss through electrolysis treatment, which improves the grade and market competitiveness of the product.
Improve thermal insulation performance: The oxide film after electrolysis can reduce heat transfer and further improve the thermal insulation effect of the thermos cup. Experimental data show that the thermal insulation time of the electrolytic thermos cup can be extended by about 15% under the same conditions.

2. Electrolytic treatment process

2.1 Preliminary preparation
The preliminary preparation for the electrolytic treatment of the thermos cup is a key step to ensure the smooth progress of the process and the quality of the final product. First, the inner liner of the thermos cup needs to be strictly cleaned to remove oil, dust and impurities on the surface to ensure good contact between the electrolyte and the surface of the liner during the electrolysis process. Ultrasonic cleaning equipment is usually used to place the inner liner of the thermos cup in the cleaning liquid. Through the high-frequency vibration of the ultrasonic wave, a large number of tiny bubbles are generated in the cleaning liquid. The impact force generated by these bubbles when they burst can effectively remove the dirt on the surface of the liner. Experiments show that the surface cleanliness of the inner liner of the thermos cup after ultrasonic cleaning can reach more than 98%, which provides a good foundation for subsequent electrolytic treatment.
Secondly, the electrolyte needs to be prepared and adjusted. The composition and concentration of the electrolyte play a decisive role in the effect of the electrolytic treatment. Commonly used electrolytes are mainly composed of chemical substances such as sodium hydroxide and trisodium phosphate, and their concentrations need to be accurately proportioned according to the material of the inner liner of the thermos cup and the required oxide film thickness. For example, for the inner liner of a stainless steel thermos cup, when the concentration of sodium hydroxide in the electrolyte is 100-150 g/L and the concentration of trisodium phosphate is 20-30 g/L, an ideal electrolytic treatment effect can be obtained. In addition, the temperature of the electrolyte also needs to be controlled within a certain range, generally 30-50°C, to ensure the stability of the electrolytic reaction.
Finally, the electrolytic equipment needs to be inspected and debugged to ensure the normal operation of the equipment. The electrolytic equipment mainly includes electrolytic cells, DC power supplies, electrodes and other components. Before use, the electrolytic cell needs to be cleaned and inspected to ensure that it is free of damage and impurities; the DC power supply needs to be calibrated to ensure the stability of its output current and voltage; the electrodes need to be cleaned and installed to ensure good contact between the electrodes and the inner liner of the thermos cup. The quality and efficiency of the electrolytic treatment can only be guaranteed when the equipment operates normally.
2.2 Electrolytic process
The electrolytic process is the core link of the electrolytic treatment of the thermos cup. The surface of the inner liner undergoes an oxidation reaction through the action of the current to form a dense oxide film. During the electrolysis process, the inner liner of the thermos cup is placed in the prepared electrolyte as the anode, and a certain current density is applied by a DC power supply to cause an anodic oxidation reaction on the surface of the inner liner. The current density directly affects the growth rate and quality of the oxide film, which is generally controlled at 1-5 A/dm². For example, when the current density is 3 A/dm², the growth rate of the oxide film is moderate, the film layer is uniform and dense, and its thickness can reach 5-10 μm, which can effectively improve the corrosion resistance and wear resistance of the thermos cup.
The electrolysis time is also an important process parameter, which determines the thickness and performance of the oxide film. Generally speaking, the longer the electrolysis time, the thicker the oxide film, but too long an electrolysis time will lead to excessive growth of the oxide film, affecting its adhesion and uniformity. Experiments show that for the inner liner of a stainless steel thermos cup, an oxide film with excellent performance can be obtained when the electrolysis time is 30-60 minutes. During the electrolysis process, the temperature and stirring of the electrolyte also need to be controlled. The temperature of the electrolyte should be maintained at 30-50℃, and the electrolyte should be evenly distributed by stirring to avoid excessive or low local concentration, thereby ensuring the uniform growth of the oxide film.
In addition, the voltage change during the electrolysis process also needs attention. As the oxide film gradually grows, the resistance of the electrolyte will increase, resulting in an increase in voltage. In order to ensure the stability of the current density, it is necessary to adjust the output voltage of the DC power supply in time according to the voltage change to ensure the smooth progress of the electrolysis process. By precisely controlling the various process parameters during the electrolysis process, the surface properties of the thermos flask liner can be effectively improved to meet the expected quality standards.
2.3 Subsequent treatment
Subsequent treatment is the last step of the electrolysis treatment of the thermos flask, which mainly includes the sealing treatment of the oxide film and the cleaning and drying of the surface. The sealing treatment of the oxide film is to improve the corrosion resistance and wear resistance of the oxide film and prevent the oxide film from being corroded or worn during use. Commonly used sealing methods include hot water sealing and chemical sealing. Hot water sealing is to soak the electrolytically treated thermos liner in 90-100℃ hot water for 5-10 minutes, so that the pores in the oxide film undergo hydrolysis reaction, forming dense oxides to fill the pores, thereby improving the corrosion resistance of the oxide film. Chemical sealing is to further improve the wear resistance and corrosion resistance of the oxide film by coating a layer of chemical sealant, such as silicate solution, on the surface of the oxide film. Experiments show that the corrosion resistance of the oxide film after hot water sealing or chemical sealing can be improved by more than 30%, and the wear resistance can be improved by more than 20%.
The cleaning and drying of the surface is to remove the residual electrolyte and impurities on the surface of the thermos liner to prevent them from affecting the normal use of the thermos. After the sealing treatment, the thermos liner needs to be cleaned, usually by a combination of clean water rinsing and ultrasonic cleaning to ensure that the surface cleanliness reaches more than 95%. The cleaned thermos liner needs to be dried, generally by hot air drying or natural drying. The temperature of hot air drying should be controlled at 60-80℃ for 10-15 minutes to ensure the dryness of the inner liner surface. After subsequent treatment, the inner liner of the thermos cup has a smooth surface and uniform color, good corrosion resistance, wear resistance and aesthetics, meets the quality requirements of the product, and can be used for subsequent assembly and packaging processes.

3. Electrolytic treatment principle

3.1 Anodizing principle
The core of the electrolytic treatment of the thermos cup lies in the anodizing process. During the electrolysis process, the inner liner of the thermos cup is placed in the electrolyte as the anode, and current is applied through a DC power supply to cause an oxidation reaction on the surface of the inner liner. The specific reaction is as follows:
When the current passes through the electrolyte, the metal atoms on the surface of the inner liner lose electrons, forming metal ions that enter the electrolyte, and an oxide film is formed on the surface of the inner liner. Take stainless steel as an example. Its main component is iron (Fe). During the electrolysis process, iron atoms undergo oxidation reaction at the anode:
Fe→Fe2++2e−
The generated iron ions enter the electrolyte, and a layer of iron oxide (Fe₂O₃) film is formed on the surface of the liner.
The oxide film has a porous structure. As the electrolysis time increases, the oxide film gradually thickens, the pores gradually become smaller and finally closed, forming a dense oxide film. This oxide film can effectively block the contact between the corrosive medium and the liner matrix, and improve the corrosion resistance of the thermos cup. Experiments show that the corrosion resistance of the thermos cup liner treated with anodizing can be improved by more than 50%.
The thickness and quality of the oxide film are affected by factors such as current density, electrolysis time, electrolyte composition and temperature. The higher the current density, the faster the oxide film grows, but too high a current density may lead to uneven growth of the oxide film; the longer the electrolysis time, the thicker the oxide film, but too long an electrolysis time will cause the oxide film to grow excessively, affecting its adhesion. By precisely controlling these parameters, the performance of the oxide film can be optimized.
3.2 The role of electrolyte
The electrolyte plays a vital role in the electrolysis treatment of the thermos cup. It not only acts as a conducting medium for current, but also participates in the formation process of the oxide film.
Conductivity: The electrolytes in the electrolyte (such as sodium hydroxide, trisodium phosphate, etc.) can dissociate into ions. Under the action of an external electric field, these ions move in the electrolyte to form a current, allowing the electrolysis reaction to proceed. For example, sodium hydroxide dissociates into Na⁺ and OH⁻ ions in water, and the movement of these ions provides a path for the conduction of current.
Oxide film formation: The components in the electrolyte can react with the metal ions on the surface of the liner to promote the formation of the oxide film. Taking sodium hydroxide as an example, it can provide OH⁻ ions during the electrolysis process, react with metal ions to form metal oxides, and form an oxide film. At the same time, components such as trisodium phosphate can stabilize the pH value of the electrolyte, prevent excessive dissolution of the oxide film, and ensure the quality of the oxide film.
Temperature regulation: The temperature of the electrolyte has a significant effect on the rate of the electrolytic reaction and the performance of the oxide film. The temperature of the electrolyte is generally controlled at 30-50°C. Within this temperature range, the electrolytic reaction can proceed stably, the growth rate of the oxide film is moderate, and the film layer is uniform and dense. If the temperature is too high, the electrolytic reaction is too fast, which may lead to uneven growth of the oxide film; if the temperature is too low, the electrolytic reaction rate will be reduced, affecting production efficiency.
Impurity removal: The electrolyte can also remove impurities remaining on the surface of the inner tank during the electrolysis process. During the electrolysis process, the impurity ions move to the cathode under the action of the electric field and are removed, further improving the cleanliness of the inner tank surface and providing a good foundation for the uniform growth of the oxide film.

4. Advantages of electrolytic treatment

4.1 Improved thermal insulation performance
After electrolytic treatment, the thermal insulation performance of the thermos cup is significantly improved. Experimental data show that the thermal insulation time of the electrolytically treated thermos cup can be extended by about 15% under the same conditions. This is because the oxide film formed by electrolytic treatment can reduce the transfer of heat. The oxide film has a low thermal conductivity and can effectively block the conduction of heat from the inner liner of the thermos cup to the external environment, thereby extending the thermal insulation time. For example, when testing the thermal insulation performance of different thermos cups, the time for the water temperature to drop to 50% of the initial temperature after the thermos cup that has not been electrolytically treated is 3 hours after being filled with hot water, while the time for the electrolytically treated thermos cup can be extended to about 3.5 hours. This improvement in thermal insulation performance enables the thermos cup to better maintain the temperature of the drink in actual use and meet the needs of users.
4.2 Enhanced corrosion resistance
Electrolytic treatment significantly enhances the corrosion resistance of the thermos cup. The inner liner of the thermos cup will come into contact with various liquids in daily use, such as acidic beverages, tea, etc., and is prone to corrosion. The oxide film formed by electrolytic treatment can effectively prevent the contact between the corrosive medium and the inner liner matrix. Experiments show that the service life of the thermos cup treated by electrolysis can be extended by more than 3 times in a simulated acidic beverage environment. For example, a stainless steel thermos cup was placed in an acidic solution with a pH value of 3 for corrosion resistance testing. After soaking for 24 hours, the thermos cup that was not treated by electrolysis showed obvious corrosion marks on the surface, while the surface of the thermos cup treated by electrolysis was basically free of corrosion. This is because the oxide film has a dense structure that can prevent the contact between acidic substances and the metal of the inner liner, thereby effectively improving the corrosion resistance of the thermos cup and extending its service life.
4.3 Improved aesthetics
Electrolytic treatment significantly improves the aesthetics of the thermos cup. It can improve the color and gloss of the surface of the inner liner of the thermos cup and improve the appearance quality of the product. By adjusting the electrolytic process parameters, different color and texture effects can also be achieved to meet the personalized needs of consumers. For example, some high-end thermos cups can present a mirror-like gloss through electrolytic treatment, which improves the grade and market competitiveness of the product. Experimental data show that the surface roughness of the thermos liner treated with electrolysis can be reduced by about 40%, and the surface hardness can be increased by about 30%. This surface treatment not only makes the thermos look smoother and neater, but also more comfortable to the touch. In addition, the thermos after electrolysis also performs well in color uniformity and glossiness, which can better attract consumers' attention and improve the market appeal of the product.

5. Disadvantages of electrolysis

5.1 High cost
The cost of electrolysis treatment of thermos is relatively high, which is mainly reflected in the following aspects:
Equipment investment: Electrolysis treatment requires professional electrolysis equipment, including electrolytic cells, DC power supplies, electrodes, etc. The purchase and installation costs of these equipment are high. For example, the price of a complete set of electrolysis equipment usually ranges from tens of thousands to hundreds of thousands of yuan, which is a large initial investment for thermos manufacturers.
Raw material cost: The preparation of electrolyte requires the use of specific chemicals, such as sodium hydroxide, trisodium phosphate, etc., and the prices of these raw materials are relatively high. In addition, the service life of the electrolyte is limited and needs to be replaced regularly, which also increases the consumption cost of raw materials. According to statistics, the cost of using electrolyte accounts for about 20% of the total electrolytic treatment cost.
Energy consumption: A large amount of electricity is consumed during the electrolytic treatment process to maintain the electrolytic reaction. At the same time, in order to ensure the temperature stability of the electrolyte, heating equipment is also required, which further increases energy consumption. Experimental data show that the average power consumption for each thermos cup treated during the electrolytic treatment process is about 0.5-1 kWh, which makes energy costs account for a large proportion of the total cost.
Process complexity: The electrolytic treatment process is relatively complex, and multiple parameters such as current density, electrolysis time, and electrolyte temperature need to be strictly controlled to ensure the quality of the oxide film. This requires professional technicians to operate and monitor, which increases labor costs. In addition, the complexity of the process also leads to relatively low production efficiency, further pushing up the production cost of the unit product.
5.2 Difficult to clean
The thermos cup after electrolytic treatment is difficult to clean, which is mainly reflected in the following points:
Characteristics of the oxide film: Although the oxide film formed by electrolytic treatment has good corrosion resistance and wear resistance, it also makes stains and residues more difficult to remove. For example, tea stains, coffee stains, etc. are easy to adhere to the surface of the oxide film and are not easy to be cleaned by ordinary detergents. Experiments show that the adhesion of tea stains on the surface of the thermos liner treated by electrolysis is about 40% higher than that on the surface of the untreated thermos liner, which increases the difficulty of cleaning.
Choice of detergent: Due to the high chemical stability of the oxide film, ordinary detergents may not be able to effectively remove stains, and the use of strong acid or strong alkaline detergents may damage the oxide film, affecting its performance and service life. Therefore, when cleaning the thermos cup after electrolysis treatment, it is necessary to choose a suitable detergent, which increases the complexity and cost of cleaning.
Limitations of cleaning methods: Due to the characteristics of the oxide film, some conventional cleaning methods, such as brushing and scrubbing, may not achieve the desired cleaning effect. For example, brushing may scratch the oxide film, affecting the smoothness and aesthetics of its surface. Therefore, special cleaning methods, such as ultrasonic cleaning, are required, but these methods are costly and relatively complex to operate.
Impact of residues: If the cleaning is not thorough, the residual stains and detergents may have an adverse effect on the use and service life of the thermos. For example, the residual detergent may react chemically with the beverage in the thermos, affecting the taste and safety of the beverage; the residual stains may breed bacteria and affect the hygiene of the thermos. Therefore, cleaning the thermos after electrolysis treatment requires more caution and meticulousness to ensure the cleaning effect and product safety.

6. Comparison between electrolysis treatment and pure polishing process

6.1 Comparison of surface characteristics
There are significant differences in the surface characteristics of the thermos liner between electrolysis treatment and pure polishing process.

Surface hardness: The surface hardness of the thermos liner after electrolysis treatment can be increased by about 30%, while the pure polishing process mainly removes the uneven surface by physical methods. Although it can make the surface smooth, it cannot significantly improve the hardness. Experimental data show that the surface hardness of the thermos liner after electrolysis treatment can reach about Mohs hardness 6, while the surface hardness of the liner after pure polishing is usually about Mohs hardness 5.
Wear resistance: The oxide film formed by electrolytic treatment has high wear resistance and can effectively resist friction damage, with wear resistance improved by 60%. In contrast, although the surface after pure polishing is smooth, it lacks a wear-resistant protective layer. During frequent use and cleaning, the surface is prone to scratches and wear. For example, in a wear test simulating daily use scenarios, the surface wear of the thermos liner treated with electrolysis was only 30% of that of the pure polished thermos liner after 1,000 frictions.
Corrosion resistance: Electrolytic treatment significantly improves the corrosion resistance of the thermos by forming a dense oxide film, and the corrosion resistance is improved by more than 50%. The service life can be extended by more than 3 times in a simulated acidic beverage environment. The pure polishing process only improves the surface finish by physical methods, and cannot effectively prevent the contact between the corrosive medium and the liner matrix, and the corrosion resistance is relatively poor. Experiments show that after the pure polished thermos is immersed in an acidic solution with a pH value of 3 for 24 hours, the surface corrosion degree is more than 5 times that of the electrolytic thermos.
Aesthetics: Electrolytic treatment can not only make the surface of the thermos liner form a uniform color and gloss, but also achieve different colors and texture effects by adjusting process parameters to meet personalized needs. Pure polishing process mainly makes the surface smooth and flat, and the color and texture effects are relatively single, and it cannot provide a variety of appearance options like electrolytic treatment.
6.2 Cost comparison
In terms of cost, electrolytic treatment and pure polishing process have their own characteristics.
Equipment cost: Electrolytic treatment requires professional electrolytic equipment, including electrolytic cells, DC power supplies, electrodes, etc. The equipment purchase and installation costs are high. The price of a complete set of electrolytic equipment usually ranges from tens of thousands to hundreds of thousands of yuan. The equipment required for pure polishing process is relatively simple, mainly polishing machines, etc., and the equipment cost is relatively low, generally between thousands and tens of thousands of yuan.
Raw material cost: Electrolytic treatment requires the use of specific electrolytes, such as sodium hydroxide, trisodium phosphate, etc. The price of raw materials is relatively high, and the electrolyte has a limited service life and needs to be replaced regularly. The use cost accounts for about 20% of the total electrolytic treatment cost. The pure polishing process mainly uses polishing agents and abrasives, etc., with relatively low raw material costs and relatively small consumption.
Energy consumption: A large amount of electricity is required to maintain the electrolytic reaction during the electrolytic treatment process, and heating equipment is used to maintain the electrolyte temperature. The average power consumption for each thermos cup is about 0.5-1 kWh. The pure polishing process mainly consumes mechanical energy, and the energy consumption is relatively small. The power consumption for each thermos cup is about 0.1-0.3 kWh.
Labor cost: The electrolytic treatment process is complicated and requires professional technicians to operate and monitor, with high labor costs. The pure polishing process is relatively simple, and operators can take up their posts after simple training, with low labor costs.
Comprehensive cost: Although the equipment cost, raw material cost and energy consumption of electrolytic treatment are high, since it can significantly improve the performance and service life of the thermos cup, in the long run, the comprehensive cost per unit product may be comparable to that of the pure polishing process, and even more cost-effective in the high-end market. For example, for high-end thermos cup brands, the selling price of the electrolytically treated thermos cup can be increased by 20%-30% due to improved performance, which offsets the higher production costs to a certain extent.
6.3 Comparison of applicable scenarios
Electrolytic treatment and pure polishing process have their own advantages in applicable scenarios.
High-end market: Electrolytic treatment is more suitable for the high-end thermos market because it can significantly improve the corrosion resistance, wear resistance and aesthetics of thermos cups. These thermos cups usually have high requirements for quality and performance, and consumers are willing to pay a higher price for better product performance. For example, some high-end outdoor thermos brands, after electrolytic treatment, not only have better corrosion resistance and wear resistance, but also can maintain good performance in harsh environments, meeting the needs of outdoor enthusiasts.
Ordinary market: Pure polishing process is more suitable for the ordinary thermos market due to its low cost. These thermos cups have relatively low performance requirements and mainly meet basic insulation and use needs. Pure polishing process can provide a smooth surface at a lower cost to meet the needs of ordinary consumers. For example, in some ordinary thermos cups sold in supermarkets, pure polishing process is widely used, its price is relatively low, and its market share is high.
Special use: The oxide film formed by electrolytic treatment can provide additional protection, making it more advantageous in some special-purpose thermos cups. For example, in medical and laboratory applications where hygiene and corrosion resistance are high, electrolytically treated thermos can better prevent bacterial growth and chemical corrosion. However, the application of pure polishing technology in these special scenarios is relatively limited and cannot provide sufficient protection.

7. Market Application and Consumer Perception

7.1 Market Acceptance
The acceptance of electrolytic treatment technology for thermos cups in the market has gradually increased, which is mainly reflected in the following aspects:
Growth in the high-end market: As consumers' requirements for the quality and performance of thermos cups increase, the share of electrolytically treated thermos cups in the high-end market continues to increase. Data shows that in the past three years, the market share of high-end thermos cups treated with electrolysis has increased from 15% to 30%, with an average annual growth rate of more than 20%. For example, some high-end outdoor brands and luxury thermos brands have adopted electrolytic treatment technology to meet consumers' demand for durability and aesthetics.
Penetration of the mid- and low-end markets: Electrolytic treatment technology has also begun to penetrate the mid- and low-end markets. Although the mid- and low-end markets are more sensitive to costs, with the maturity of technology and the reduction of costs, more and more mid- and low-end thermos brands are beginning to try electrolytic treatment. At present, the proportion of electrolytically treated thermos in the mid- and low-end market has reached 10%, and it is showing an upward trend year by year.
Application scenario expansion: The application scenarios of electrolytically treated thermos are constantly expanding, from traditional daily drinking and outdoor sports to medical, laboratory, catering and other industries. In the medical field, the corrosion resistance and antibacterial properties of electrolytically treated thermos make it an ideal container; in the catering industry, its aesthetics and durability are favored by merchants. Data show that the application of electrolytically treated thermos in the medical and catering industries accounts for 15% and 20% respectively, and is still growing.
High consumer satisfaction: Consumers are generally satisfied with electrolytically treated thermos. According to market research, more than 80% of consumers believe that the thermal insulation performance, corrosion resistance and aesthetics of electrolytically treated thermos are better than those of ordinary thermos. In addition, consumers also highly value the service life and safety of the product, which further promotes the market acceptance of electrolytically treated thermos.
7.2 Consumers’ misunderstanding of electrolytic treatment
Although the acceptance of electrolytic treatment technology in the market is gradually increasing, there are still some misunderstandings about electrolytic treatment among consumers:
Misunderstanding 1: Electrolytic treatment will release harmful substances: Some consumers believe that harmful substances may remain on the surface of the inner liner of the thermos cup during the electrolytic treatment process, thus affecting the safety of the beverage. However, studies have shown that the oxide film formed by electrolytic treatment is chemically stable and will not release harmful substances. Experimental data show that the amount of heavy metals dissolved on the surface of the inner liner of the electrolytically treated thermos cup in simulated daily use scenarios is far lower than the national standard, which fully meets the food safety requirements.
Misunderstanding 2: Electrolytic treatment is just a surface decoration: Some consumers believe that electrolytic treatment is only to improve the appearance of the thermos cup, but ignore its significant improvement in corrosion resistance and wear resistance. In fact, electrolytic treatment can not only make the surface of the thermos cup form a uniform color and gloss, but also significantly improve its corrosion resistance and wear resistance. Experiments show that the service life of the electrolytically treated thermos cup in a simulated acidic beverage environment can be extended by more than 3 times, and the wear resistance is improved by 60%.
Misunderstanding 3: The price of electrolytically treated thermos is too high: Some consumers believe that the price of electrolytically treated thermos is too high and exceeds their budget. Although the production cost of electrolytically treated thermos is relatively high, its improved performance and extended service life make it highly cost-effective. In the long run, consumers can save the cost of replacing thermos during use. In addition, with the maturity of technology and the reduction of costs, the price of electrolytically treated thermos is also gradually decreasing, making it more competitive in the market.
Misunderstanding 4: Electrolytically treated thermos is difficult to clean: Some consumers believe that it is difficult to clean electrolytically treated thermos and worry that stains are difficult to remove. Although the oxide film formed by electrolytic treatment does have high chemical stability, by choosing the right detergent and cleaning method, such as ultrasonic cleaning, stains can be effectively removed without damaging the oxide film. Experimental data show that the cleaning effect of electrolytic thermos that has been properly cleaned is comparable to that of ordinary thermos, and the smoothness and aesthetics of the surface are better maintained.