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Conductive adhesive keys and non conductive silicone keys of distinction?

Release time:

2019-05-09 12:30

Source:

 
conductive adhesive keys and non conductive silicone keys of distinction?
      
This kind of button contact like a work of art! This contact usesConductive silicone keysConductive silicone keys are very common, such as the keys on your TV remote control. After you disassemble the remote control, there is a small black dot on the back of the keys, which is conductive silicone (called carbon particles in the industry).
Conductive silicone keys generally use two kinds of conductive materials: conductive black particles and conductive ink, so how to distinguish between these two kinds of conductive silicone keys?

1. The identification method of black conductive silicone keys is to see if there are black dots at the bottom of the keys, and this dot must have a certain thickness, and some are dots with texture. If one of these two conditions is met, then it is black conductive silicone keys.

2. The identification method of ink conductive silicone key is also to check whether there is a black dot at the bottom of the key, and this dot is especially thin. There are also a small black block formed along with the shape of the bottom of the key. The kind that cannot be buckled off with fingernails is the ink conductive silicone key.
 
The difference between conductive glue keys and non-conductive silicone keys, how to distinguish conductive silicone keys "conductive glue keys and non-conductive silicone keys when it comes to silicone keys, I believe everyone knows that silicone keys are the same as other keys, as long as the product needs to use buttons, then silicone keys can be used, for example;" Remote control keys, instrument keys, electronic dictionary keys "including all electronic products can be used, so do you know, what makes silicone keys become conductive silicone keys, and how do we distinguish what conductive silicone keys are? Next, the editor will give you a detailed description.
 
In the conductive silicone keys which are usually divided into two kinds of conductive materials:

1,(conductive black particles) principle: the contact between the conductive particles, forming a conductive path, so that the conductive adhesive has conductivity, the stable contact between the particles in the adhesive layer is caused by the curing or drying of the conductive adhesive. Before the conductive adhesive is cured or dried, the conductive particles are separated in the adhesive, and there is no continuous contact with each other, so they are in an insulated state. After the conductive adhesive is cured or dried, the volume of the adhesive is contracted due to the volatilization of the solvent and the curing of the adhesive, so that the conductive particles are in a stable and continuous state with each other, thus exhibiting conductivity.
 
2. (Ink conductive) Conductive ink (electrically conductive printing ink), a paste ink made of conductive materials (gold, silver, copper and carbon) dispersed in a binder, commonly known as paste ink. Has a certain degree of conductive properties, can be used as printed conductive points or conductive lines.
     
How is the conductive adhesive key made?

What isConductive adhesive keys: Conductive adhesive key is one of many electronic product keys. Its main function is to achieve the key with conductive function through conductive adhesive. When the conductive adhesive key is pressed, the conductive rubber under the key can be electrically connected with the lower contact. When the conductive adhesive key is released, the conductive rubber under the key will bounce up and not communicate with the lower contact.
The conductive adhesive keys are used in dictionary keys, remote control keys, pos machine keys, scanner keys, cipher keys, keyboard keys, single-point keys, etc. This paper gives you a comprehensive introduction to the conductive adhesive keys. I believe you also know something about the conductive adhesive keys. What is the total workflow of the conductive adhesive keys from design to production to finished products?
 
The production of the lower conductive adhesive key can only be put into production based on the drawing file of the product. Therefore, first of all, the conductive adhesive key needs to be designed by a special designer. Generally, the silicone key manufacturer will design and change it according to the customer's requirements. After the design is completed, the electronic drawing file will be sent to the customer for confirmation. After the customer agrees, the product can be proofing, that is, mold opening, generally, the mold opening cycle of the conductive adhesive key is completed in about 5-10 days, depending on whether the whole design pattern and production process of the conductive adhesive key are complicated, and the corresponding cycle will be longer if the difficulty is large.
 
After the mold is completed, it will be handed over to the customer for confirmation. After the customer is satisfied, it can be put into production of conductive adhesive keys. At this time, the preparation of silicone raw materials is a very important link. After the preparation and chat, the superior of the mold can be formed into conductive adhesive keys, and thousands to hundreds of thousands of products can be produced according to the customer's requirements.
 
Then it is necessary to carry out the molding inspection of the conductive adhesive keys. The quality must be strictly controlled, and the unqualified products must be screened out and then processed and trimmed. The processing and trimming is because there are burrs around the conductive adhesive keys after molding. At this time, manual removal of these burrs is required. After removing the burrs, the secondary sulfur addition is carried out, the second addition of sulfur is mainly to stabilize the size of the product and maintain the characteristics of silica gel products and remove the odor of silica gel products. Next, we need to carry out the inspection of the finished product, the packaging of the keys and the post-shipment inspection to be regarded as the real finished product.
 
Although the conductive adhesive key is a product with slight quality and volume, its process is still very complicated. The quality inspection of the product alone has three links to strictly control the quality, and Mingzhen has always adhered to it. Quality first is the core. When producing silicone products, defective products often appear. Only by putting quality first can the rework rate be reduced.

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