已验证
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一、应用范围：
适用於各硅胶饰品、新奇特硅胶产品，其特点：可作多种颜色的键面，外观佳，且矽胶的弹性良好，耐候性佳，使用寿命长。
如：计算机、电话、电视音响、汽车等各类电子电器产品的遥控器。 可根据客户要求定做。
二、按键基本型式及参数概况：THE BASIC MODEL OF KEYPAD AND PARAMETER SURVEY
(一)标准按键关开的设计条件：Condition for design of standard key switch
| Name Item | Cone Type | Double Cone Type | Bell Type | Double Cone Type | Flat Type |
| Type | |||||
| General Pressure Stroke Curve | |||||
| Range ofPressure(g) | 30-250 | 50-250 | 80-20010-200(NON CLICK) | 30-200 | --- |
| Relationbetween loadand Stroke | Pressure(g)30-5055-8085-150155-200 | Stroke(g)0.5-0.90.7-1.40.8-1.51.2-2.0 | Stroke(mm)1.0-3.50.5-3.5(NON CLICK) | Stroke(mm)0.3-7 | |
| OutsideDimentionBased on keytop dimention | A≥B+2.5MM | A≥B+2.0MM | --- | ||
| Life | 1*106 | 10*106 | 50*106 | ||
(二)各种不同用途的标准性质：Standard properties for various application
| TypicalUses | Telephone | TV&VTR | Eletroniccalculator | Taperacorder | Electroniemusicalinstrument | Computertoys | Electr-onic | Typewrite | Carstercounit |
| Stroke行程 | 1.5-3.5 | 0.1-1.5 | 0.3-0.6 | 0.3-12 | 1.5-3.5 | 2.5-3.5 | 0.3-0.6 | 3-4 | 1.5-2.0 |
| Load(g)按力 | 120-200 | 30-100 | 60-90 | 60-100 | 30-90 | 60-90 | 60-9 | 70-90 | 60-100 |
| UsefulLife(104time) | 100-200 | 100-150 | 50-80 | 50 | 100-150 | 1000-1500 | 10 | 1000-1500 | 50 |
(三)按键物理性质Physical properties of keypad
| PARAMETER | CONDUCTOR | INSULATOR |
| Specitic gravity at25℃ Hardness(shoreA) Tensite strength(kg/cm) Elongarion(%)at brenk Tear strength(Kg/cm) Compression(%)atter 22hrs at 175℃ volume resisttivity (OHM-CM) | 1.1865±5>60>100>970>100>12<351*10 |
(四)按键电学特征：Electrical characteristics of keypad
| Contact resistance insulation resistance Max contact loading Electric resistance Per key | ≤200ohm at 12v DC300ma ≥100Mohm at 250v DC24V DC 100mA 50 ohm-100 ohm |