Snap dome supplier for membrane keypad

November 24th, 2010

In membrane keypad construction there is a layer called tactile layer, snap dome is applied for this layer.

For the tactile layer, there are several ways to create a tactile response which is a result of forming another layer. For example a dome embossed polyester overlay means the graphic layer is also the tactile layer. If a poly dome is formed in the membrane layer means it doubles as the tactile layer. Obviously if the tactile layer is absent, you have a non-tactile membrane switch. Options for Tactile Layers are Snap Dome, Polyester Dome, Dome Emboss in the Graphic Layer, Elastomer. But most for the tactile layer is the metal domes(snap domes).

If you need the tactile snap dome for your membrane keypad, please do feel free to contact us.

Related Posts:
1. Metal dome for membrane switches
2. Metal dome for pcb
3. ESU Pencil metal dome
4. Metal dome for car alarm system

Tags: ,
Posted in Snap domes | Comments Closed

The quality and price of dome sheet analysis

November 19th, 2010

Now the quality and price of mobile phone metal dome sheet are a little confused in our domestic makeketing, some manufacturers in order to be able to get orders, repeated request to ask for lower prices, but lower price is no guarantee for quality. if the product quality is no guarantee so that the company can’t survive for long time. Our company dedicate to quality-oriented, but also to provide the best price.

1, The quality of mobile phone dome sheet depends on the metal domes, the materials of metal domes as follows:
 
Raw Material   life cycles    Click Ratio     Force            Remark

Japan         1,000,000       55%            Stable               best quality
Kearo         700,000         45%           less stable         better quality
China         500,000         35%          General feeling    good quality

Different metal dome materials determin the different prices of dome sheets.

2, Other dome sheet materials are: Myalr, PET, Silver.

3, Silver is also divided into: The USA silver,Taiwan silver,domestic silver. Different silver for the different resistanceof dome array, but also with different price.

We put these materials of metal dome sheet announced, we just want to provide a reference for you, I hope we should not request to ask the lowest price, we also should consider the quality.

Our company strictly to ensure quality of dome sheets, welcome customers to inquiry of our snap dome and dome sheet!

Tags: ,
Posted in Dome Array | Comments Closed

The types of round metal dome with dimples

November 8th, 2010

The types of round metal dome with dimples generally divided into metal dome with one dimple and three dimples, four dimples, five dimples, these are four types. But our common used are metal domes with one dimple and five dimples. It’s also very convenient for arrangement and mass production.

Generally speaking, 4mm, 5mm round metal dome always have these dimples, and usually used for mobile phone keys, MP4, MP3 and other domestic market oriented. Such as larger diameter 8mm, 9mm, 10mm normally have one dimple in the center and with three dimples in side. The click feeling is better. With more dimples, it will affect the life of metal dome, but in general can reach one million life.

If you want to know more metal dome(snap dome), please contact our professional sales staff.

Related Posts:
1. The difference between dimple and without dimple of domes;
2. The difference of three kinds plating of metal dome;
3. The function of dimple in metal domes.

Tags: , ,
Posted in Metal Dome | Comments Closed

Membrane Switch Construction

November 4th, 2010

A Membrane Switch can be as simple as a two layer construction or a multi-layered complicated assembly. Regardless, as a momentary switch, must contain a Membrane Layer and a Static Layer.All other layers required for decoration, backlighting, adhesive, tactile response and rigid support are all optional.

Please see below a short explanation of five basic layers of a membrane switch:
1. GRAPHIC LAYER:
Decoration of a membrane switch is conventionally accomplished with thin, screen printed, polyester or polycarbonate. Elastomer is also a method of decorating a switch assembly and an attractive and functional alternative especially when a three dimensional look and feel is desired.
2. MEMBRANE LAYER:
As discussed above the Membrane Layer is thin & pliable and carries at least one of the poles of the switch or carries a conductive shorting pad. This is a required layer. Materials used are: Polyester, Metal Dome, Elastomer, Polyimide.
3. TACTILE LAYER:
There are several ways to create a tactile response, some are a result of forming another layer. For example a dome embossed polyester overlay means the graphic layer is also the tactile layer. If a poly dome is formed in the membrane layer means it doubles as the tactile layer. Obviously if the tactile layer is absent, you have a non-tactile membrane switch. Options for Tactile Layers are Metal Dome, Polyester Dome, Dome Emboss in the Graphic Layer, Elastomer.
4. STATIC LAYER:
The Static Layer is rigidly supported and carries at least one of the poles of the switch or carries a conductive shorting pad. The Static Layer is a required component of a membrane switch. Polyester,  transparent conductor – ITO, Polyimide, Printed Circuit Board.
5. RIGID LAYER:
If the static layer is made from a flexible material it must be laminated to a rigid material. Many membrane switches are purchased without a rigid backer and the static layer does not become truly static until it is attached permanently to the instrument housing. Example materials: Aluminum, Steel, Plastic, Glass, Fiberglass

Ok, you can see the membrane switch construction as below:
Membrane switch construction

Tags:
Posted in News | Comments Closed

Pages:  1 2 ... 15 16 17 18 19 ... 33 34
« Older Entries
Newer Entries »