1.RUBBER
2.DOME(PET)
3.(Spacer)
4.Conductive point (carbon silver)
Product parameters:
1. Adhesive:
project/ | thickness(mm) | initial force | retentivity(hr/kg*inch) | adhesive force(kgf/inch) |
Plastic | ||||
Rubber | 0.125 | 10cmThe adhesive rolling distance of corresponding steel balls is less than 10cm
| Silicone and synthetic resin
| 0.8↑Silicone 1.0↑ synthetic resin |
Transparent/white one side glue
| thickness of adhesive：0.035~0.1 | The adhesive rolling distance of corresponding steel balls is less than 10cm
| 8↑ | 0.6↑ |
2.Conductive point: carbon silver, first printed silver paste in the printed carbon paste, thickness: 0.008~0.012.Advantages: strong antioxidant, not easy to scratch.
Carbon silver | resistance |
<10Ω |
3.Product Specification
specification | KEY point diameter(mm) | FORCE (g) | CLICK (%) | springbackFR(g) | STROKE(mm) | LIFE | Environmental testing conditions
|
/DOME material | |||||||
0.1PET | Φ4.5~5.0 | 100~180 | 45~75 | >25 | 0.3~0.45 | 30 | 70℃85%RH48hrs |
0.125PET | Φ5.5~6.0 | 160~260 | 45~75 | >30 | 0.4~0.55 | 50 | 70℃85%RH48hrs |
4.Tolerance requirement：
project /sample | positioning hole to positioning hole(mm) | Positioning hole to shape(mm) | Shape to shape(mm) | Hole diameter(mm) | Positioning hole to key(mm) |
Manual sample | ±0.15 | ±0.15 | ±0.15 | ±0.1 | ±0.15 |
Mould sample | ±0.1 | ±0.1 | ±0.1 | +0.08/-0 | ±0.1 |
Note: (1) the positioning hole are minimum aperture Φ 1.0 mm;
(2) the distance between the inner side of the two key points shall be greater than 1.0mm;
(3) The hole edge of the mechanism should be greater than 1.0mm from the key point;
(4) The minimum diameter of the hole of the SP piece is greater than 0.4mm than the diameter of the key point.
5.The sample delivery
The new model(50~100pcs) | The old model(50~100pcs) | |
Manual sample | 3 ~ 4 working days | 2 ~ 3 working days |
Mould sample | 1 working day after the mold returns | 2 ~ 3 working days |
Mold delivery time: a. forming mold 3-4 working days
B. 6-7 working days for steel mold
Note: 1. The conditions for the life test are as follows: the silicone flat head of the hitting head;Diameter: Φ 1.5;Speed: 2~3 times/second;Strike power: 400-500g.
2. Life determination: a. Before and after life hitting, the rate of change of elasticity and feel of DOME is less than 30%;B. No ink shedding, no KEY point cracking.
