What aspects of the low price Silicone Membrane Keypad need to be checked
Time of issue：
2021-09-15
Low price silicone membrane keypads manufacturers should strictly control the quality of the low price silicone membrane keypads produced, and inspect each batch of low price silicone membrane keypads that leave the factory. Only in this way can the quality of the low price silicone membrane keypads be guaranteed. Then, what are the requirements for the produced low price silicone membrane keypads?
1. Check raw materials: adhesives, adhesives, panels, carbon inks, spacers, reinforcing plates, substrates, silver paste, and insulating printing should meet the requirements of the drawings.
2. Shape comparison: The shape, wire, insulation treatment and bushing combination of the low price silicone membrane keypad should comply with the drawings or provide samples.
3. Check the scale: the drawings meet the specifications without tolerance, and the others meet the requirements of the drawings.
4. Check the appearance: The low price silicone membrane keypad cannot have obvious shortcomings, such as lack of strokes in characters; stains, light spots; deinking, stains, scratches, etc.
5. Check the color: choose the method of visual inspection, and compare it with the sample or color card to see if there is any color difference. When the color difference is particularly serious, use a color difference meter to compare.
6. Peel strength inspection: The peel strength of the glue should not be less than 8N/25mm.
The above are the things that need to be checked about the low price silicone membrane keypads.
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