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The conductive silicone key is one of many electronic product keys. Its main function is to achieve a conductive key through conductive adhesive. When the conductive silicone key is pressed, the conductive rubber under the key can be in electrical communication with the contact below. When the conductive silicone key is released, the conductive rubber under the key springs up and does not communicate with the contacts below.

Application

Dictionary keys, remote control keys, POS machine keys, scanner keys, password keys, keyboard keys, single-point keys, etc.

Mold opening considerations
The production of conductive silicone keys needs to consider the diameter, length, width, and height of silicone products, key stroke distance, pressing force requirements, product hardness, color, and conductivity requirements;

Related categories
Silicone buttons include single-point silicone buttons, remote control silicone buttons, conductive silicone buttons, mobile phone silicone buttons, touch silicone buttons, transparent silicone buttons, keyboard buttons, cipher device buttons, car buttons, film buttons, laser carving buttons, reset buttons , Home button, PC button, learning machine button, POS machine button, cipher device button, digital product button, p + r button, patch type silicone button, etc..

Life

1. Load pressure: 20 to 500 grams

2. The contact resistance is less than 150 ohms.

3. Life: 0.5 to 30 million times.

4. working temperature Celsius: -20 degrees to 180 degrees.

5. Storage temperature: -30 ° C to 250 ° C.

6. Contact rate: 5 microamps at 12 volts DC for 0.5 seconds and 20 million cycles.

7, contact elasticity: less than 12 million times.

8. Insulation resistance: 12 to the power of 10, ohm at 500 volts DC.

9. Insulation capacity: 25 to 30 kV / mm.

Press pressure data

1. The pressing pressure is about 50-80g, which is generally suitable for silicone keys of computer keyboards and calculator keys. The pressing force in this range is not high, relatively low, and it is easy to press.

2. The pressing pressure is about 80-120g, which is generally suitable for electrical buttons and remote control buttons. The pressing pressure is suitable, the feel is comfortable, and the rebound force is also good.

3. The pressing force is 120-180g, which is generally suitable for affecting equipment, industrial instruments, and mechanical remote control. The pressing force is much larger than the second type. Generally, it is suitable for relatively large silicone keys. Suitable for products with frequent clicks.

4. The pressing pressure is more than 180g. Generally, this kind of pressing silicone button is relatively rare. It is suitable for special industries, such as medical, aviation and other industries. Frequent use of fingers is relatively acidic for a short time.

Production Process

1. Design of artwork

The design of the artwork is generally based on the size of the sample provided by the customer. The production drawing is generally produced using planar drawing software such as CAD or AI software. If the customer cannot provide the sample, we can cooperate with the customer to complete the drawing according to the customer's requirements. Design and production of manuscripts.

2. Open the mold

The opening of the mold is the programming time of the mold master according to the design. Generally, the delivery time of the large mold is 15 days. With the mold in place, production is fast.

3. Color mixing rubber

According to the color number of the international Pantone color card specified by the customer, the color mixing ratio is aligned, and the color difference is extremely small.

4. Approved materials

The materials required for conductive silicone keys are environmentally friendly silicone rubber materials, with hardness of 30 degrees to 70 degrees.

5. Upper mold production

After the mold is ready, it is produced on the machine. After the mold is installed, the machine needs to be warmed up and debugged for production.

6. Molded product inspection

After the conductive silicone button is released, the quality inspection of the workshop is required. The main inspection is to check whether the product meets the specifications. If it is not consistent, it will be scrapped, reworked, and repaired.

7. Self-demolition

After the conductive silicone button is produced, there will be residual edges, or there are batches of sharp edges. After the inspector of the quality control department passes the inspection, the product will be sent to the post-processing department for trimming.

8. Finished product inspection

After trimming the side, it is finished. The finished product needs to be returned to the quality control department to check the quality of the trimming. If there are any unqualified products, it will be determined to be reworked.

Cause of rupture
1). When the temperature is too high during molding, the silicone key will become brittle when the temperature is too high during molding, and it will be easily broken if it is demolded after molding.
2). Improper operation methods during demolding. Many mold masters do not have professional training or inattentive work during demolding. When they are not demoulded according to strict operation instructions, silicone buttons will be broken badly.
3). The vulcanization of the silicone button is not complete. When the mold temperature of the silicone button is too low or the vulcanization time is too short, it will cause the product to stick to the mold and it is not easy to release the mold.
4). The silicone used for the button is too poor, and some factories blindly reduce the cost and use inferior raw materials of the silicone for the button, which results in the poor quality of the produced silicone button, the rubber is too poor, the toughness is bad, and the memory is broken.
5). The release degree of the silicone button is not good when lifting the mold, which causes the product to break during the lifting process.
6). The mold cavity with rough surface or accumulation of dirt is not conducive to demolding, and the mold that is not easy to demold is easily broken.