月: 2024年1月

What Are Hydraulic Manifolds?

Hydraulic manifolds are crucial components in hydraulic systems responsible for branching, merging, and controlling the flow of hydraulic fluid.

Their operating principle involves branching and merging hydraulic fluid sent from the hydraulic pump using valves and controlling the flow of hydraulic fluid through the opening and closing of the valves. This allows for the control of the entire hydraulic system.

Hydraulic manifolds are used in a wide range of applications, including construction machinery, industrial machinery, and automobiles. Their key feature is the ability to centrally manage branching, merging, flow, and pressure control of hydraulic fluid, contributing to the efficiency and safety improvement of hydraulic systems. However, hydraulic manifolds can be expensive and require maintenance.

When using them, it’s important to combine them with suitable hydraulic pumps and actuators and design the capacity and flow rate appropriately.

What Are Harmonic Filters?

Harmonic filters are devices used to remove frequency components that are integer multiples of the fundamental frequency from an AC current.

They are used to prevent disturbances caused by harmonics in power systems and industrial equipment. The operating principle involves passing the input harmonic components through a filter with characteristics that suppress them, resulting in the removal of the unwanted AC current. Main applications include substations and power lines in power systems, and drive equipment such as inverters and motors in industrial machinery. The structure of the filter consists of impedances that suppress harmonic components and capacitors that remove harmonics.

Key features include effective removal of harmonic components and improvement of power quality, but it’s important to consider the drawbacks of being expensive and requiring maintenance. Accurate measurement of harmonics is required when using them.

What Are Hanger Bearings?

Hanger bearings are types of bearings responsible for supporting and guiding machine components. They play a role in reducing friction and vibration generated when the shaft rotates.

Used in various fields such as automotive, industrial machinery, and household appliances, they are incorporated into engines, suspensions, machine tools, washing machines, and more.

The operating principle involves filling lubricating oil between the shaft and the bearing to reduce friction. Their structure consists of a shaft, inner ring, outer ring, balls, and a retainer, enabling them to achieve high rotational accuracy while being compact and lightweight, and adaptable to shafts of different diameters. Key features include being compact, lightweight, and having high rotational accuracy, as well as being adaptable to shafts of different diameters.

When using them, attention must be paid to the fit between the shaft diameter and the bearing diameter, as well as ensuring proper lubrication oil filling.

What Are Hand Grip Dynamometers?

Hand grip dynamometers are devices used to measure the force applied when gripping a handle. The mechanism consists of a handle, sensors, and a display unit, allowing for convenient and relatively inexpensive measurements. 

When the subject grips the handle, internal sensors detect the force, and the magnitude is displayed digitally or on a gauge. A key feature is the ability to evaluate not only grip strength but also overall muscle strength. 

In medical institutions, they are widely used for grip strength testing and assessing the effectiveness of muscle training, in sports for assessing athletes’ muscle strength, and in industries for measuring workers’ grip strength. It’s important to ensure the subject’s posture is accurate for precise results, and understanding the method of grip strength measurement before conducting the test is essential.

What Is a Grout Line?

A grout line is a fluid material used to fill gaps or molds.

Mainly, materials like mortar, cement, and concrete are used for this purpose. The operating principle involves the flow of the fluid material into gaps or molds, either under gravity or pressure, to achieve sealing, reinforcement, and protection objectives. Grout lines are characterized by their excellent sealing, reinforcement, and protection properties, as they effectively fill gaps without leaving voids. Installation is relatively straightforward, and it can be applied quickly.

Grout lines are applied in a wide range of fields, including construction for the creation of foundations, walls, and floors, civil engineering for the construction of bridges and tunnels, and machinery for assembly and repair purposes. The hardening mechanism varies depending on the type, with mortar or cement hardening through a reaction with water, while concrete hardens through a mixture of water, cement, sand, gravel, and other components.

What Is a Filament Winder?

A filament winder is a machine designed to wind long materials, such as threads or tapes, onto a spool at a consistent thickness and winding diameter.

The operating principle involves placing the material on a feeding device, rotating it with a drive mechanism, and simultaneously winding it onto a spool at a consistent thickness and winding diameter to achieve filamentation.

They find applications in various industries, including textile, packaging, electronics, and manufacturing. Key features include maintaining a constant thickness and winding diameter, potential for automation, and high-precision winding. When using these machines, it’s crucial to select the appropriate model based on the type and shape of the material and adjust the tension and speed of the material. Filament winders are widely used in the textile and manufacturing industries, with expected increased demand in the future.

What Are Conductive Epoxies?

Conductive epoxies are materials that combine epoxy resin with conductive particles.

While retaining the excellent properties of epoxy resin, they achieve conductivity. The operating principle involves conductive particles transmitting electricity, resulting in high conductivity. They are mainly used in a wide range of fields, including electronics, automotive, and construction.

Conductive epoxies consist of two components: epoxy resin and conductive particles, characterized by high conductivity, heat resistance, and chemical resistance. Conductivity can be controlled by adjusting the ratio of conductive particles, and they can be used in high-temperature and chemical environments, leveraging the heat and chemical resistance of epoxy resin. It’s important to pay attention to the ratio of conductive particles and maintain conductivity with appropriate blending.

What Are Coiling Machines?

Coiling machines are devices used to shape metal sheets or wires into cylindrical forms.

Comprising components such as wire holders, rollers, and guide rollers, they can accommodate different thicknesses and widths of materials. They operate by securing the metal to a wire holder or rollers, rotating it through a drive mechanism, and shaping it into a cylinder with guide rollers. These machines find applications in electrical equipment, automotive parts, construction materials, packaging materials, and more, efficiently manufacturing cylindrical products in various shapes.

When using coiling machines, it’s important to set appropriate processing conditions according to the material and shape, as there is a possibility of springback during coiling. While they offer the benefit of efficient manufacturing and the creation of products in diverse shapes, proper settings and attention to springback are required.

What Are CBN Wheels?

Cubic boron nitride (CBN) wheels are extremely hard grinding wheels made by sintering CBN abrasives.

They are mainly suitable for processing hard materials such as iron and stainless steel. CBN abrasives have extremely high hardness and are resistant to deformation even at high temperatures. The operating principle is similar to that of conventional grinding wheels, where CBN abrasives come into contact with the workpiece and perform grinding. These wheels are widely used in machining, tool manufacturing, and gemstone processing.

CBN wheels facilitate the efficient processing of hard materials and sustain stable performance even in high-temperature environments. When using CBN wheels, it’s important to use appropriate grinding conditions. Additionally, regular inspection and replacement are necessary to address wear and damage to CBN abrasives and the base material.

What Are Bursting Discs?

Bursting discs are storage devices that record data by creating holes on a rapidly rotating disk surface.

Data is identified based on the size and position of the holes, allowing for faster data access compared to magnetic disks. They are primarily used in data centers and cloud services, excelling in scenarios where fast data access is required, such as big data analytics and AI learning. These discs are made of materials like aluminum or glass, and data is identified through laser drilling and reading heads.

Their features include high-speed data access, large capacity, and durability. However, caution is needed due to the potential for disk damage during laser drilling, damage from vibration or impact, and heat generation from laser irradiation.