With the continuous advancement of technology, metal dome technology has developed rapidly in the field of key switches. Metal dome, also known as snap dome, as the core component of the key switch, the metal dome is gradually becoming the focus of the industry with the development of the key switch. Its excellent quality and durability make people pay attention to the performance of the key switch Create new expectations.
Introduction of Metal Dome
The metal dome is made of ultra-thin (0.05mm-0.1mm thickness) and ultra-thick (generally higher hardness) stainless steel 301 or 304 materials, which are manufactured through precision machining. The production of the metal dome is simple and fast, although its working principle is very simple but extremely critical: when the metal dome on the button is pressed, its center point is concave, and the conductive part at the bottom (usually located on the gold finger on the PCB board) above) to form a loop, and the current passes through, so that the whole product can work normally. This structure is widely used in membrane switches, metal dome contact switches, PCB boards, FPC boards, medical equipment and other products.
Classification of metal domes
According to the shape and strength of the metal dome, it can be divided into different types such as round, cross, triangle, oval, etc. The diameter ranges from 3mm to 20mm, and the strength ranges from 100gf to 600gf, which meets the needs of different products for the touch of buttons.
The superiority of the metal dome technology is also reflected in its surface electroplating treatment. You can choose gold plating, nickel plating, silver plating, bright surface and other treatment methods, which not only improve the appearance texture, but also protect the metal dome from being easily damaged to a certain extent. Rust and aging.
As an important part of the key switch, the metal dome bears an important role in the switch operation. Its structure enables the key switch to realize the closing and connecting of the switch function when the operating force is applied, and the switch is turned off when the operating force is withdrawn. This design based on the force change of the metal dome ensures the reliable on-off of the circuit, thus providing a solid foundation for the normal use of the product.
The metal dome market also has different divisions. The division of quality and price is relatively obvious, followed by the division of material and shape. The material and shape are mainly divided into stainless steel metal domes and ordinary metal domes. Metal domes with different shapes have different functions. For the selection of square and round metal domes, it needs to be considered according to the specific needs of the key switch. Due to its design structure, circular metal domes tend to have a longer service life under the same material, while square metal domes are easier to produce than round ones, but the use of circular metal domes in applications The number is much larger than the square metal dome.
All in all, the new application of metal dome technology has brought a qualitative leap in the field of key switches. In the application, Best Technology metal dome, with its excellent performance, durable characteristics, and various options to meet different needs, makes the quality and stability of key switch products more guaranteed. Whether it is to improve user experience or meet the needs of specific industrial fields, the introduction of Best Technology metal domes will create more possibilities for the industry and push the performance of key switches to a new level.
