Posts Tagged ‘metal domes’

How to clean the metal domes?

Saturday, November 7th, 2020

The cleaning of metal domes is a key step in determining the quality of metal domes. Why do you say that? Because if the metal dome is not cleaned well, it will affect the conduction of the circuit board, which is a functional problem.

The cleaning of the metal dome relies on UL-trasonic waves and uses special chemical reagents for cleaning. It takes about one hour to clean, then dry for one hour, and finally pack it out. If the cleaning is not thorough, there may be lamination, which will produce rust and stains. Our company has been professionally making metal domes for more than ten years, so there is no problem cleaning problem, and we have not received any complaints from customers.

If you want to know more about metal domes, please feel free to contact us.

What are the metal domes testing equipments?

Thursday, September 12th, 2013

Generally, what are the metal domes testing equipments? Products must pass strict quality inspection before shipment, so today we will have a look at the metal domes testing equipments:

1.Force Gauge : specifically test metal domes specifications: including force, re-force, stroke,click feeling, etc.;

Force Gauge

2 Life Testing: Test the life of metal domes. As metal domes are used in the key switches, the service is very important;

Life Testing

3. Resistance tester: Test material resistivity. Nickel resistance of the material is less than 10 ohms, gold plated is less than 1 ohm;

4 Height Tester: specifically for the detection of the production process. Anytime we will test the metal dome samples.

The above are main equipments for metal dome testing. If you want to know more, please feel free to contact us.

PCB board mounting metal domes

Wednesday, July 10th, 2013

We supply PCB board mounting metal domes. We have many years of metal domes(snap dome, tactile dome) production experience, and they are widely used in many electronic products,such as membrane switch , the phone keypad, micro-switches, communications equipment, touch switches and other products.

Metal domes have four-leg metal dome(cross shape), triangle metal dome, round metal dome, rectangular metal dome, square shape metal dome and other special shape to choose from. Some models available with legs, legs length ranging from 1mm to 3mm to facilitate mounting on the printed circuit board. Each shape has different sizes and force for customers to choose, the size from 2mm to 20mm, the force from 100 to 800g range.

We also have gold-plated and nickel-plated metal domes to choose from, all made of imported high-quality pre-gold and pre-nickel plating materials: coating uniformity, strong adhesion, good corrosion resistance, suitable for products with higher requires with contact resistance.

See below picture of the pcb board mounting metal domes

PCB board mounting metal domes

CMD Manufacture Co., limited is your best choice.

The test items of metal domes

Tuesday, July 17th, 2012

Do you know the test items of metal domes before shipping, today let us to know this details.

First, the appearance
1, the appearance of the surface without scratching, crushing,
2, no distortion, spots, Dirty

Second, the size measurement

Third, the characteristics of test
1, metal dome force test
2, metal dome life test
3, the material

Fourth, the packaging.

Through the above test items of metal dome, there is no problem, it can be shipped. CMD Manufacture Co., Limited is the professional manufacturer of metal domes, snap domes, dome arrays, and dome sheets.