Posts Tagged ‘metal dome array’

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Can metal dome array afford high temperature oven?

Thursday, January 2nd, 2014

Can metal dome array afford high temperature oven? Answer is no.

Why do some customers have this requirement? That is because they need to assemble metal dome array(dome sheet) before welding, it would need afford over a high-temperature(over 200 degrees). However, the maximum temperature of the metal dome array material can afford is 125 degrees. So the material will to be melt after high-temperature oven, it is certainly not acceptable.

If you have must have this required, we can change to use one material which can afford high-temperature. However, the difficulty and cost of this kind material is getting much higher than normal one. We recommend our customers to assemble dome array(dome sheet) after welding, this is a very reasonable and convenient.

If you have any doubts and you have the better ways, please contact with us.

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Metal dome and metal dome array is RoHS-compliant?

Monday, November 25th, 2013

Do our company produces metal dome and metal dome array is RoHS-compliant? Answer is yes, our products are not only sales in domestic, but also exported to Europe, America and many other foreign markets, so it must be with RoHS standard.

RoHS is the EU legislation to establish a mandatory standard, which stands for “Restriction of Hazardous Substances”. The standard was implemented by July 1, 2006, mainly for electrical and electronic products, materials and process standards, making it more conducive to human health and the environment. The purpose of this standard is to eliminate the lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers of six substances in electronic products.

If you need our products metal dome and metal dome array RoHS report, please feel free to contact our sales staff.

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The metal dome array of Fingerprint attendance machine

Thursday, May 23rd, 2013

The metal dome as a contact switch is used very widely, we here to know metal dome arrays are used in fingerprint attendance machine today.

Fingerprint attendance machine is the fingerprint recognition attendance machine,the contact membrane keypad use our metal domes, then what type of the metal dome will used?In generally to use triangle metal dome, with higher force, such as 300-500 grams,the 5-8mm diameter.

Then make the metal dome with adhesive sheet(we call metal dome sheet or dome array), a piece of sheet with the total keys to paste, very convenient and simple. Then the material of transparent is very convenient to assemble.

We have customers are specialized in making fingerprint attendance machine, so the technology is more mature. If you have needs in this area, please feel free to contact us.

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The metal dome array test items

Tuesday, May 14th, 2013

In general, the test items for the metal dome array (also called dome sheet), we have below items:

1.PET adhesive sheet degree testing(-35 degrees to +75 degrees); 2.PET peeling force testing:0.8kg ± 50g. 3.10% of dome array random sampling inspection(100 million times life,plating, the tolerance of metal dome force ± 30g, click feeling between 35-60%, appearance,stroke). 4.Tolerance of the holes and outline (tolerance ± 0.15 mm),dirty, bruised, or broken, dubble dome, lack of metal domes. 5.EMI contact resistance is less than 3 ohms.

The metal dome array of our company: thin, feel good, easy assembly, high pass rate, low price, if you have inquires in this area, please feel free to contact our sales staff! ! !

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