最上インクス List of Products and Services

Introducing the folding fin developed by Mogami Inks. (Technical Advisor, Mr. Ohara) The pipe and piping outer wrap fin developed by our company (hereinafter referred to as OPFF) has the power to increase the heat dissipation area to approximately 10 to 20 times that of a bare pipe, while being retrofittable. Traditionally, fins attached to pipes were made by welding, brazing, or extrusion processing onto a bare pipe; however, these methods are difficult for bending processes and do not work with materials like glass or resin for the bare pipe. OPFF can improve heat dissipation performance regardless of the material of the bare pipe, and its effectiveness has been confirmed to increase by 20% to 150% in natural convection air cooling, with even greater increases in forced convection. Features: ◎ Retrofits possible ◎ Can be wrapped around piping and pipes ◎ Made from thin sheet metal - lightweight ◎ No initial mold costs required ◎ Small lot sales available ◎ High performance *For detailed content of the column, please refer to the related link. For more information, feel free to contact us.

• Heat exchanger

In this column, I will talk about biomimetics. Biomimetics is used in various industrial products and is expected to greatly contribute to the development of new products in the future. Historically, human-powered aircraft modeled after bird wings and Velcro inspired by the shape of burdock seeds have emerged. In recent years, there have been pain-free injection needles inspired by mosquito proboscis and water-repellent surfaces utilizing the properties of lotus leaves. *For more details on the column, please refer to the related links. If you have any questions, feel free to contact us.

• others

In this column, I will discuss research examples on surfaces that prevent frost formation. Figure 1 shows the state of condensed water on a superhydrophobic surface observed through an electron microscope. The size of the water droplets can be as large as 100 microns. It is well known that water droplets on hydrophobic surfaces tend to form spherical shapes, as seen on lotus leaves. However, condensed water arises from the microscopic roughness of the surface, causing it to grow in a root-like manner, as shown in Figure 2, and it does not form spherical shapes like those in Figure 1. On superhydrophobic films, while condensation does lead to the formation of water droplets, they do not freeze for more than an hour. *For more details on the column, please refer to the related links. Feel free to contact us for more information.

• Heat exchanger

In this column, we will discuss the issue of frost when using heat pumps for vehicle heating. As explained in the 16th column, heat pumps extract heat from the air, and the total of the extracted heat and the compression energy from the compressor is used as a heating source. When the outside air temperature is low, refrigerant at temperatures below minus 10°C passes through the outdoor unit, cooling the air with that refrigerant, which causes condensation and the condensation water to freeze. Over time, this will block the entire surface of the outdoor heat exchanger, resulting in no airflow and preventing heat exchange. In short, the heat pump will stop functioning. *For more details on the column, please refer to the related links. For further inquiries, feel free to contact us.

• Heat exchanger

In this column, we will discuss the cooler for cooling power modules with dual-sided heat dissipation. The diagram shows an example of a heat exchanger that cools power modules with dual-sided cooling, as explained in the previous column. The biggest challenge is how to cool the power module from both sides. The idea of arranging the cooling water passages in parallel and sandwiching the power module between them is good, but the challenge lies in how to ensure contact. *For more detailed content of the column, please refer to the related links. Feel free to contact us for more information.*

• Cooling system

In this column, I will discuss the cooling mechanisms of inverters. The cooling mechanisms of inverters include single-sided cooling, as shown on the left of the diagram, and double-sided cooling, as shown on the right. In the case of single-sided cooling, semiconductor devices are soldered to a substrate, which is then joined to a heat sink made of ceramic materials with good thermal conductivity and insulation, such as aluminum nitride, and cooled through a cooling channel. In this case, to cool the semiconductor substrate from one side, a number of semiconductor chips are arranged on a flat structure and cooled from one side. *For more detailed information on the column, please refer to the related links. If you have any questions, feel free to contact us.*

• air conditioning
• Other Auto Parts
• Cooling system

In this column, we will discuss the thermal management of electric vehicles. As the reduction of carbon dioxide, a cause of global warming, becomes a significant social issue, the transition from gasoline engine vehicles to electric vehicles is expected to accelerate rapidly, and various automobile manufacturers are speeding up their development. Thermal management is a crucial challenge for electric vehicles. When it comes to thermal issues, the main purpose in traditional engine vehicles was to cool the engine and engine oil, as well as to cool the air for the air conditioning system. However, in electric vehicles, the engine's waste heat can no longer be used as a heat source for the air conditioning system. *For more details on the column, you can view it through the related link. Please feel free to contact us for more information.*

• air conditioning
• Other Auto Parts
• Cooling system

In this column, we will discuss the air conditioning methods and challenges of electric vehicles. As shown in the diagram of the refrigeration cycle, the air that exchanges heat with the refrigerant in the evaporator becomes cold air, which is used for air conditioning in the summer. However, to achieve the preferred temperature for the occupants, it is necessary to mix this with warm air generated by the heater core. The hot water entering the heater core is the cooling water from the radiator. In recent years, the popularity of hybrid vehicles has led to a shortage of this heating source. This is due to the reduced heat generation from the engine, as it operates intermittently. Especially in winter, the lack of heating has led to practical methods of supplementation, such as using electric heaters (PTC heaters). When fully transitioning to electric vehicles, this issue will become even more pronounced. *For more detailed information about the column, please refer to the related links. For further inquiries, feel free to contact us.*

• air conditioning
• Other Auto Parts

In this column, we report an excerpt from the results of a joint research conducted with a professor from Mie University regarding the contact thermal resistance during the installation of externally wrapped folding fins on pipes. In this joint research, a heater was inserted into the center of a copper cylinder, and experiments were conducted under natural convection conditions with fins wrapped around it. By measuring various points, we evaluated the effects of the fins, comparisons based on the methods of securing the fins, and the effects of thermal conductive sheets. We invite you to read it. *For more detailed information about the column, please refer to the related links. Feel free to contact us for further inquiries.

• Other machine elements

Our "External Wrapping Fins" and "Internal Insertion Fins" are heat transfer fins that can be installed on piping afterwards. They are easy to install and remove, allowing for use only during necessary seasons, such as summer or winter. Verification of their effectiveness can also be done easily. By expanding the heat exchange area, they contribute to improved heat exchange performance. We can accommodate dimensions and materials other than standard products. 【Features】 ■ Can be retrofitted to existing equipment and piping in factories and plants ■ Our main product is based on a unique folding fin made of thin metal ■ Can be installed on piping utilizing features such as flexibility, lightweight, and high strength ■ Fin pitch, fin height, and number of fins can be customized without mold changes ■ Dimensions and materials can also be discussed. Customized shapes can be produced from just one piece ★ We are currently offering samples. Please feel free to contact us if you are interested. * You can view materials with analysis examples from the "PDF Download."

• Other machine elements

We received a consultation stating, "The finned piping is interfering with surrounding equipment, and it's causing problems." As a solution, please consider "wrapping folding fins around the piping." When fins are continuously formed at a certain height, as in the case of finned pipes, it is not possible to change the height midway. However, when fins are wrapped around and installed afterward, it becomes possible to install fins of different heights according to the interference situation, eliminating the need for significant design changes solely aimed at avoiding interference. Since this is a retrofitting measure, it can be conveniently used without major changes to the design or drawings, for example, by utilizing it as an option if necessary. [Case Summary] ■ Issue: Finned piping is interfering with surrounding equipment. ■ Proposed Solution: Consider wrapping folding fins around the piping. *For more details, please refer to the PDF materials or feel free to contact us.

• Heat exchanger

We have received a consultation stating, 'The cooling of the fluid inside the piping is not keeping up, and we are in trouble.' As a solution, please consider 'wrapping folding fins around the piping.' By installing fins, we can effectively increase the actual surface area of the piping, which can significantly improve cooling efficiency, especially in environments with forced air cooling where wind is present. The wrapping of folding fins can be installed later onto the piping without replacing the piping itself, similar to piping with fins, which provides the advantage of being an additional component in case of insufficient cooling capacity. [Case Overview] ■ Issue: The cooling of the fluid inside the piping is not keeping up, and we are in trouble. ■ Proposed Solution: Consider wrapping folding fins around the piping. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, "I would like to improve the efficiency of liquid heating through pipes." As a solution, please consider the installation of "wrapping fins." By partially processing fins made of thin sheet metal into a clip-like shape, they can be easily attached to existing rod-type heaters. Since the fins are made of thin sheet metal, there are also fin shapes that can be installed along pipes that are bent into complex shapes. [Case Summary] ■ Issue: Improve the efficiency of liquid heating through pipes ■ Proposed Solution: Consider the installation of wrapping fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, "I would like to improve the efficiency of air heating through pipes." As a solution, please consider the installation of "wrapping fins." By partially processing fins made of thin metal into a clip-like shape, they can be easily attached to the outside of specific pipes with a one-touch mechanism. Installation is easy, which also makes removal simple, allowing for maintenance tasks such as cleaning to be carried out easily. [Case Summary] ■ Issue: Want to improve the efficiency of air heating through pipes ■ Proposed Solution: Consider the installation of wrapping fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry about wanting to improve the heat exchange efficiency of pipes in natural air cooling. As a solution, please consider the installation of slit fins. These fins are a type that has slits periodically placed in folding fins made from thin sheet metal, which may enhance performance while maintaining the benefits of being lightweight and flexible. By adjusting the dimensions of the slits, air can flow through the gaps, allowing for smoother movement of the rising air currents generated during natural air cooling, which can improve cooling efficiency. [Case Summary] ■ Issue: Wanting to improve the heat exchange efficiency of pipes in natural air cooling ■ Proposed Solution: Consideration of the installation of slit fins *For more details, please refer to the PDF materials or feel free to contact us.

• Heat exchanger

We received an inquiry stating, 'I want to improve the heat exchange efficiency of pipes under forced air cooling.' As a solution, please consider the installation of 'slit fins.' These fins are a type that has periodic slits made by bending thin metal sheets, which may enhance performance while retaining the benefits of being lightweight and flexible. The presence of slits allows for the installation of fins in orientations that cannot be achieved without slits, enabling wind from the side to hit the entire surface of the fins, which may improve cooling efficiency compared to standard folding fins. [Case Summary] ■ Issue: Want to improve the heat exchange efficiency of pipes under forced air cooling ■ Proposed Solution: Consider the installation of slit fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received a consultation saying, 'I would like a folding fin with better performance.' As a solution, please consider the installation of 'slit fins.' These fins are made by bending thin sheet metal and have slits periodically placed in them, which could potentially improve performance while maintaining the benefits of being lightweight and flexible. In forced air cooling environments, the slits can affect the flow of fluid, making it easier for heat to transfer from the fins to the air. Depending on the cooling and surrounding structures, this could improve heat dissipation performance by about 10%. In natural air cooling environments, performance improvements can also be expected depending on the shape and installation direction. [Case Summary] ■ Issue: I would like a folding fin with better performance ■ Proposed Solution: Consider the installation of slit fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, 'I want to easily adjust the heating area with a sheath heater.' As a solution, please consider the installation of 'wrapping fins.' These fins are made from thin sheet metal and are partially shaped like clips, allowing them to be easily attached to existing rod-type heaters. Since the fins are made from thin sheet metal, there are also fins that can be installed in a shape that conforms to the complex contours of the heater. [Case Overview] ■ Issue: I want to easily adjust the heating area with a sheath heater. ■ Proposed Solution: Consider the installation of wrapping fins. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, 'I want to improve the performance of a heat exchanger using pipes for liquid-to-liquid heat exchange.' As a solution, please consider the installation of 'wrapping fins.' These fins are made from thin sheet metal and are partially shaped like clips, allowing them to be easily attached to existing rod-type heaters. Since the fins are made from thin sheet metal, there are also shapes available that can be installed along a spirally wound pipe. [Case Overview] ■ Issue: Want to improve the performance of a heat exchanger using pipes for liquid-to-liquid heat exchange ■ Proposed Solution: Consider the installation of wrapping fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, "I would like to increase the types of fins for air heating heaters." As a solution, please consider the installation of "wrapping fins." These fins are made from thin sheet metal and are partially shaped like clips, allowing them to be easily attached to existing rod-type heaters. Installation is easy, making removal equally simple, and maintenance tasks such as cleaning can be carried out with ease. [Case Overview] ■ Issue: Want to increase the types of fins for air heating heaters ■ Proposed Solution: Consider the installation of wrapping fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, "We are looking for an easily replaceable catalyst carrier for installation inside pipes." As a solution, please consider "the installation of folding fins on the inside of the pipe." By coating the surface of the folding fins with a catalyst and installing them inside the pipe, it is possible to utilize them as a catalyst carrier that expands the surface area on the inside of the pipe. Folding fins can be used as donut-shaped components that slightly possess spring-like properties to expand the surface area by joining both ends with any desired connection. In the case of spring-like fixation, removal becomes easy. [Case Summary] ■ Issue: Looking for an easily replaceable catalyst carrier for installation inside pipes ■ Proposed Solution: Consider the installation of folding fins on the inside of the pipe *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, 'I want to shorten the distance required for heat exchange.' As a solution, please consider the installation of folding fins on the gas side. If the flow path on the gas side is a circular pipe, installing the fins along the outer wall of the flow path can increase the heat transfer area. When folding fins shaped like those in the diagram are installed, in addition to expanding the heat transfer area, the fluid will flow more easily near the pipe wall, which can improve the heat exchange efficiency with the external fluid side. Therefore, we believe this could contribute to the overall compactness of the heat exchanger. [Case Summary] ■ Issue: Want to shorten the distance required for heat exchange ■ Proposed Solution: Consider the installation of folding fins on the gas side *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, 'I would like to improve the heat exchange efficiency inside the pipe.' As a solution, please consider 'installing folding fins on the inside.' By installing folding fins inside the pipe, it is possible to significantly increase the surface area inside the pipe, resulting in a pipe with good heat exchange efficiency. Compared to grooved pipe types, the shape near the center of the pipe is very difficult for flow, allowing a larger volume of fluid to flow around the outer circumference of the pipe, which has good heat exchange efficiency. [Case Summary] ■ Issue: Improve heat exchange efficiency inside the pipe ■ Proposed Solution: Consider installing folding fins on the inside *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, "We would like to prototype an improved product for the existing heat exchanger." As a solution, please consider "wrapping folding fins around the pipe." By wrapping fins around the pipe, the heat exchange surface area is increased, which can simply lead to improved performance. Since this installation method involves wrapping from the outside, it allows for performance verification with minimal effort added to the existing product. Additionally, for some products, it may be more space-efficient to procure only the fin parts rather than the entire pipe. [Case Overview] ■ Issue: We would like to prototype an improved product for the existing heat exchanger. ■ Proposed Solution: Consider wrapping folding fins around the pipe. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received a consultation stating, 'We want to improve the heat exchange efficiency inside and outside the piping.' As a solution, please consider 'wrapping folding fins around the piping.' Due to the original shape of the folding fins, they are arranged parallel to the flow direction inside the piping, allowing for an effective increase in surface area for heat dissipation, even if the fluids inside and outside the piping are flowing in opposite directions, thus improving the efficiency of heat exchange. Installation can be done by wrapping the fins around the pipe from the outside, which may allow for installation without significant disassembly of the equipment, depending on the object, application, and environment. [Case Overview] ■ Issue: We want to improve the heat exchange efficiency inside and outside the piping. ■ Proposed Solution: Consider wrapping folding fins around the piping. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating that 'the temperature of the fluid flowing through the piping has become higher than expected.' As a solution, please consider 'wrapping folding fins around the piping.' This can increase the surface area of the piping, which may significantly lower the fluid temperature compared to standard piping, depending on the type and temperature of the fluid. Since this installation method involves wrapping around the piping from the outside, if there is sufficient working and installation space, it offers the advantage of being able to install without the need for extensive work such as dismantling equipment. [Case Overview] ■ Issue: The temperature of the fluid flowing through the piping has become higher than expected. ■ Proposed Solution: Consider wrapping folding fins around the piping. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, 'I would like to improve the natural air-cooled heat dissipation parts of power supply boxes and similar equipment.' As a solution, please consider using 'folding fins' for the fin sections. By replacing the shape of the fin sections, which expand the heat dissipation area, with folding fins, it is possible to significantly reduce the thickness of the fins. As the thickness of each individual fin decreases, it becomes possible to increase the number of fins, which can lead to improved performance due to the increased surface area and, in some cases, the lightweight and compact design of the equipment. [Case Overview] ■ Issue: I would like to improve the natural air-cooled heat dissipation parts of power supply boxes and similar equipment. ■ Proposed Solution: Consider using folding fins for the fin sections. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry saying, "I would like to install a heat sink on a product with a curved surface for cooling." As a solution, please consider "wrapping with folding fins." Since it is made of thin metal, it can be bent and installed (attached) to conform to the curved surface. By installing folding fins, the surface area is increased, which enhances natural air cooling and increases the heat dissipation due to the airflow inside the original device. If successful, this alone may meet the required cooling performance. [Case Overview] ■ Issue: Want to install a heat sink on a product with a curved surface for cooling ■ Proposed Solution: Consider wrapping with folding fins *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received an inquiry stating, "The heat dissipation components of lighting-related products are very heavy." As a solution, please consider using "folding fins" for the fin section. By replacing the shape of the fin section, which expands the heat dissipation area, with folding fins, it is possible to significantly reduce the thickness of the fins while maintaining the surface area compared to die-cast or extruded products. As a result, this leads to a reduction in the overall weight of the product. [Case Summary] ■ Issue: The heat dissipation components of lighting-related products are very heavy. ■ Proposed Solution: Consider using folding fins for the fin section. *For more details, please refer to the PDF document or feel free to contact us.

• Heat exchanger

We received a consultation stating, 'It is very difficult to consider, select, and place orders for fin shapes.' As a solution, please consider the 'Standard Folding Fin.' We have a comprehensive lineup that covers a wide range of dimensional combinations, making it easy to gather the necessary dimensional variations for data collection, even if only one dimension is changed. [Case Summary] ■ Issue: It is very difficult to consider, select, and place orders for fin shapes. ■ Proposed Solution: Consider the Standard Folding Fin. *For more details, please refer to the PDF materials or feel free to contact us.

• Heat exchanger

In this column, I will discuss the composition of the car air conditioning refrigeration cycle and its challenges. The principle of cooling is based on a refrigeration cycle, which is a closed circuit consisting of two heat exchangers, a compressor that compresses the refrigerant, and an expansion valve that serves as a depressurization device. Recently, with the increasing demand for improved fuel efficiency in vehicles, there has been a growing need for energy-saving car air conditioning systems, leading to various considerations. The most effective method is to enhance the performance of the condenser. By improving its performance, the high pressure decreases, which reduces the compression work of the compressor, thereby leading to a reduction in the input energy of the compressor. Additionally, improving the efficiency of the compressor itself is also necessary. *For more detailed information on this column, please refer to the related links. For further inquiries, feel free to contact us.*

• Heat exchanger
• air conditioning

In this column, we will discuss the water drainage issues related to the evaporator of car air conditioners and their solutions. The evaporator draws in warm, humid air and cools and dehumidifies it by utilizing the latent heat of evaporation of the refrigerant, which naturally leads to the generation of condensate. When the air conditioner is turned off, not all of the water is discharged; it remains in the evaporator, with an approximate volume of 500cc. When the air conditioner is turned on again and airflow begins, this water is suddenly expelled, causing the phenomenon of water spraying from the air conditioner's outlet. Numerous studies have been conducted to solve such problems, and it has now become mainstream to utilize the hydrophilicity of water to reduce the amount of retained water. *For more details on the column, please refer to the related links. If you have any questions, feel free to contact us.*

• Heat exchanger
• air conditioning

Our products are standard heat transfer fins with a unique shape developed using thin sheet metal processing technology. While there are various characteristics of fin products, we also offer shapes that can be freely modified in terms of fin pitch, fin height, and the number of fins. Since our products are made by bending thin sheet metal, they are lightweight, flexible, and can accommodate various sizes as a standard shape. There is no initial cost (i.e., mold cost) typically required, making them suitable for easy trial experiments. *We also provide suggestions for optimal installation methods. 【Features】 ■Variety - Various shapes developed uniquely by our company, with fin shapes that do not exist in the market. ■Lightweight - Achieved by processing thin sheet metal. ■Low Cost - By using a standard shape, there is no burden of initial costs (i.e., mold costs). *For more details, please feel free to contact us.

• Other machine elements
• Heat exchanger

The internal insertion fins for pipes, piping, and flow paths are heat transfer fins that can be inserted into pipes and piping later on. They can be easily installed on existing equipment, allowing for an increase in surface area. They can accommodate aluminum piping with diameters ranging from Φ12 to Φ60. The fin pitch, fin height, and number of fins can be freely modified. Our products are made by bending thin sheet metal, making them lightweight and flexible, and they can be adapted to various sizes as standard shapes. Additionally, there is no initial cost (mold cost) typically required, allowing for easy use in trial experiments. *We also offer suggestions for optimal installation methods. 【Features】 ■Retrofit - Simply roll and insert our fins into existing pipes and piping. ■High Performance - An increase in surface area of approximately 3.4 times when the inner diameter is Φ10, and about 16.8 times when the inner diameter is Φ57.6 is expected. ■Low Cost - There is no initial investment required, so you can try it out easily. *For more details, please feel free to contact us.

• Heat exchanger

The outer wrap fins for pipes and piping are heat transfer fins that can be retrofitted onto existing pipes and piping. They can be easily installed on existing equipment or piping in factories and plants, making subsequent verification and validation straightforward. Our products are made by bending thin sheet metal, which makes them lightweight and flexible. Additionally, they can accommodate various sizes as standard shapes, and there is no initial cost (mold cost) typically required, allowing for easy use in trial demonstrations. *We also offer suggestions for optimal installation methods. 【Features】 ■Retrofit - Can be easily retrofitted onto existing pipes and piping. ■Flexible - Despite being made of thin sheet metal, they can be installed on pipes, piping, and curved sections. ■Low Cost - There is no initial investment required, so you can try them out without hesitation. *For more details, please feel free to contact us.

• Piping Materials
• Heat exchanger

In this column, we will discuss HVAC products that create cold and warm air for car air conditioning. HVAC stands for Heating, Ventilation, and Air Conditioning. In addition to "sirocco," there are other types of fans such as "propeller fans" used in radiators and "cross-flow fans" used in home air conditioning indoor units. However, car air conditioning requires a high pressure, so a high-pressure type "sirocco fan" is used. *For more detailed information, you can view it through the related links. Please feel free to contact us for more details.

• Heat exchanger

In this column, following the 8th installment, I will discuss how to protect heat exchangers from penetration due to pitting corrosion and gas leaks for 15 years using extremely thin aluminum tubes with a thickness of 0.2mm. Metals each have their own potential, and when different metals come into contact, the metal with the lower potential tends to corrode preferentially. For example, between zinc and iron, zinc has a relatively lower potential, so it corrodes preferentially while iron does not corrode during that time. This principle is utilized in the outer walls of ships, where zinc is applied as a coating on the iron body to prevent salt damage from seawater. Similarly, galvanized steel sheets are coated with zinc to prevent the corrosion of iron, and they are widely used in buildings and structural materials. *For more details on the column, you can view it through the related links. Please feel free to contact us for more information.

• Heat exchanger

This column introduces the topic of "corrosion resistance of aluminum sheet materials" and heat exchangers. It discusses why aluminum sheet materials used in heat exchangers, particularly with a tube thickness of only 0.2mm, can maintain corrosion resistance for over 15 years, presented in two parts. The pitting corrosion mentioned in the upper left progresses in the thickness direction of the sheet and can lead to water leaks in the tubes or refrigerant gas leaks in a short period, making it a corrosion mode that heat exchangers should be wary of. One of the significant challenges for heat exchanger designers is how to prevent this. *For more details on the column, please refer to the related links. For further inquiries, feel free to contact us.*

• Heat exchanger

This column discusses "aluminum clad materials" and heat exchangers. First, let me briefly introduce the manufacturing method of aluminum clad materials. An aluminum block is produced before rolling. At that time, the thickness is 40 centimeters and the length can be nearly 10 meters. This block undergoes processes such as hot rolling and cold rolling, ultimately becoming aluminum clad materials used for fin materials of 40 microns and tube materials of 200 microns, which are used in heat exchangers. *For more details on the column, you can view it through the related links. Please feel free to contact us for more information.

• Heat exchanger

In this column, we will introduce "Molding Processing Technology and the High Performance, Miniaturization/Lightweight of Heat Exchangers." We will explain the manufacturing process of heat exchangers, as well as how to achieve miniaturization, lightweight design, and cost reduction. We encourage you to read it. *For more details of the column, you can view it through the related links. Please feel free to contact us for more information.

• Heat exchanger

In this column, we will introduce "the miniaturization of louver fins and the high performance, compactness, and lightweight of heat exchangers." We will explain the main methods for reducing the boundary layer thickness and illustrate the relationship between louver pitch and fin pitch that affects miniaturization and lightweight design. We invite you to read it. *For more details on the column, you can view it through the related links. Please feel free to contact us for more information.

• Heat exchanger

In this column, we will regularly update useful information about heat exchangers in a technical column format. We encourage you to read it, and if you are interested in more details, please check the dedicated site of Mogami Inks Co., Ltd. [Publication Overview] ■ First Issue: Various Heat Exchangers Used in Automobiles ■ Second Issue: Development of Miniaturization and Lightweight Technology for Automotive Heat Exchanger "Evaporator" ■ Third Issue: Learning from History: Development of Miniaturization and Lightweight Technology for "Evaporator" ■ Fourth Issue: Introduction of High Performance, Miniaturization, and Lightweight Methods for "Automotive Heat Exchangers" ■ Fifth Issue: Introduction of "Louver Fin Miniaturization" and High Performance, Miniaturization, and Lightweight of Heat Exchangers *Detailed content of the column can also be viewed through related links. For more information, please feel free to contact us.

• Heat exchanger

In this column, we will introduce the development of small and lightweight technology. We briefly explain the three representative "types of evaporator structures" from 40 years ago (the 1980s): "fin & tube type," "serpentine type," and "plate laminated type." Please take a moment to read it. *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.

• Heat exchanger

In this column, we will discuss the representative heat exchanger of car air conditioning, the "evaporator that creates cool air." We will introduce the concepts behind achieving compactness and lightweight design, as well as the technologies developed. Additionally, we will include specific design elements and the processing techniques used, so please take a moment to read through it. [Contents] 1) To improve the "heat transfer performance of fins" 2) To improve the "heat transfer performance of tubes" 3) To increase the "density of fins and tubes" *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Heat exchanger

This column features information about heat exchangers used in automobiles. We introduce the main applications and names, such as the "radiator" that cools engine coolant, the "oil cooler" that cools engine oil, and the "evaporator" that creates cool air for car air conditioning. Due to the limited space inside the vehicle, there has always been a strong demand for miniaturization and weight reduction as measures for fuel efficiency. We invite you to read on. 【Overview of Contents (Excerpt)】 ■ Radiator ■ Oil Cooler ■ Evaporator ■ Condenser ■ Heater Core *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Heat exchanger