Silicone keys are known as silicone products for the production of key products commonly known as "silicone keys", silicone keys are a product of silicone products, silicone keys with excellent heat resistance, cold resistance, environmental resistance, electrical insulation , Fatigue resistance and so on. Silicone key press the maximum quality requirements are not broken, Silicone Rubber Keypads in the daily application will have a certain probability of broken bad phenomenon, of course, the silicone keys in the production will also be broken bad. In addition, silicone keys, also known as: silicone keys, silicone keys, leaves, silicone keys, silicone keys, silicone rubber keys.
Silicone keys have good resistance to high pressure, anti-wear, reliability, durability.
High pressure: the use of high-quality silicone raw materials, Silicone Rubber Keypads and special surface treatment technology, testing can withstand 110KV breakdown.
Reliability: Original double conductive carbon particle structure, than the traditional single-carbon structure of the reliability of the increase has doubled.
Anti-wear: Silicone surface with a unique concave design, Silicone Rubber Keypads to solve the unique process of printing on the issue, to ensure that the key font permanent clear.
Durability: the use of high-quality silicone raw materials, through the life test, the detection of the number of up to 200 million times, far more than the industry's 500,000 times the life.
First, press the pressure in about 50-80g, generally applicable to the computer keyboard, the calculator button silicone button, Silicone Rubber Keypads the range of the press is not high, relatively low, easy to press, suitable for frequent use of the need to click the silicone button.
Second, press the pressure in about 80-120g, generally applicable to electrical buttons, remote control buttons these, press the appropriate pressure, feel comfortable, resilience is also better.
Third, according to the pressure in the 120-180g, generally applicable to the impact of equipment, industrial equipment, mechanical remote control, according to the pressure is also much larger than the second, generally applicable to relatively large silica gel press. Key, resilience is also superior, Silicone Rubber Keypads but not suitable for frequent clicks in the product.
Fourth, press the pressure of more than 180g, the general pressure of the silicone button is relatively rare, suitable for special industries, such as medical, aviation and other industries, Silicone Rubber Keypads a short time frequent use of finger count operator.
Silicone key production process
Raw materials, silicone rubber keys for the production of raw materials is silicone rubber compound, curing agent used double "2.5, the color of the use of colored toner or silica gel gelatin, release agent using KEP a 10 or zinc stearate, etc. Hardness formula (70 × 0.4) + (50 × 0.6) degrees = 58 degrees with the hardness of 70% of the raw material and 60% hardness of 50 degrees of raw materials, the hardness of the product: Key drawings or samples for processing, made of silicone key mold, try to confirm the structure and production process can be mass production before the production of molds generally need to sandblasting mold surface treatment, if the surface of the silicone key surface requirements are bright, , The requirements for the mattress will need to wear corundum or mixed sand, if no demand can spray mixed sand. Preparation according to customer order quality, specifications to determine the hardness of the compound and the background color, according to the formula in the open or refining After the machine is refined, Silicone Rubber Keypads according to the test model to develop the rubber specifications of the film and wrapped with PE film; at the same time ready to release agent, conductive adhesive black particles and a variety of tools. Please refer to the previous written an article How to do silicon Production of plastic products before the preparation of vulcanization molding vulcanization of the use of flat vulcanizing machine, according to the vulcanization machine functions are manual, automatic and vacuum models. Die from the upper and lower layers of male and female mold (special miscellaneous pieces also three plate mold ), The production up to open the mother model, the public model into the conductive adhesive black particles and sliced weighing silicone material, if necessary, then in the master mold into the color key, ready to mold after the heating , Vulcanization. Silicone Rubber Keypads The main control parameters for vulcanization are temperature, pressure and vulcanization time, and their typical operation
The conditions are: temperature 160 ℃ ± 10 ℃; pressure 15 ~ 20MPa; time 150 ~ 200S (depending on the height of the key, such as key type shorter 30 ~ 40S can be completed). Silicone Rubber Keypads After the completion of the vulcanization, the mold will be launched vulcanizing machine, carefully lift the mother mold, with a gun with the wind, slowly remove the silicone button from the mold can be.