Rubber Gasket

Three minutes take you understand the strength of the silicone buttons and craft

by:TaiHai     2020-10-01

in life we often come into contact with all kinds of electronic equipment, which brings great convenience to our life and work, such as air conditioning remote control TV, children's learning machine, POS fever, electronic entrance guard, test equipment, etc. , can use the silicone buttons as control the use and operation of various kinds of electronic equipment. This article will introduce the silicone buttons surface process and its effect is introduced, together to get to know ~

surface technology introduction
the silicone buttons surface process according to the customer's demand is different, divided into many working procedure, such as the back surface spraying, printing, thermal transfer, water transfer printing, the surface glue, the laser carving, carved carved concave convex, P + R, etc; Now button mainstream technology of the big four are screen printing process, the drops of glue, radium vulture and injection process.

screen printing process: button screen printing into the printed surface and bottom, seal surface is through the character screen printing on the surface the keys, and low printing is the character screen printing on the back of the transparent button;
injection process: key injection effect is to enhance the feel and the wear-resisting performance, the second surface dirt can stop buttons, effectively avoid the accumulation of dust;
glue process: by epoxy resin and curing agent mixture solidified transparent crystal outfit; Can have very good protection effect on the surface of a button, at the same time can play the role of decoration;
laser carving craft: jet black ink on the surface of a button, and then use laser engraving on the keys the customer need character pattern, the keys to good pervious to light after the laser carving effect.

the key efforts to introduce
the silicone buttons feel good or bad is determined by three elements, they are: operating strength, resilience, and stroke, in general, touch the better, the smaller the restoring force, but there will be a key issue, instead increase resilience, tactility is dropped. Therefore, usually use tactile ratio to measure the relationship between resilience and tactility. Tactile ratio can use the following formula:

tactility ratio = ( Operating force - contact force) / operating force

reaction is introduced: the operator is the force applied to buttons, the force will lead to bend inclined wall! Inclined wall bending will provide power for key return!
restoring force is introduced: the keys in need, restoring force than the normal contact force small 10 g!
contact force is introduced: it is the magnitude of the contact between the conductive black grain and PCB!
stroke is introduced: refers to the button of the conductive black grain and the distance between the PCB

the above is the strength of the silicone buttons and surface technology, has ten years of production experience, silicone buttons in key custom has a wealth of experience, not only has a long-term cooperation of large key customers, and we continue to upgrade the key production equipment and technology. If you want to learn more keys or have a custom demand information, please contact: shenzhen rubber products co. , LTD.

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