How can Type-C achieve a waterproof rating of IP68 through liquid silicone encapsulation?

To achieve a waterproof rating of IP68 for Type-C interfaces through liquid silicone encapsulation technology, comprehensive considerations need to be made from multiple aspects such as design, material selection, process control, and quality inspection.

1. Design and Planning

Product design: Design the structure of the Type-C interface to ensure that it can be completely encapsulated by liquid silicone without leaving any gaps.
Mold design: Design a mold suitable for liquid silicone encapsulation to ensure precise coverage of Type-C interfaces, and equipped with exhaust holes and slots.

2. Material selection

Liquid silicone material: Choose liquid silicone material with good fluidity and sealing performance to ensure that it can completely fill the mold and form a tight sealing layer.
Type-C interface material: Choose corrosion-resistant and high-temperature resistant metal or plastic materials to ensure their adhesion performance with liquid silicone.

3. Type-C interface preprocessing

Cleaning: Use appropriate cleaning agents to clean the Type-C interface and remove surface oil stains and impurities.
Surface treatment: Polish or sandblasted the surface of the Type-C interface to increase the bonding area between the silicone and the interface.
Primer treatment: Apply a layer of primer, such as silane coupling agent, on the surface of the Type-C interface to improve the bonding strength between the silicone and the interface.

4. Mold preparation

Mold cleaning: Clean the mold to ensure that there are no impurities or residues inside the mold.
Mold preheating: Preheat the mold to an appropriate temperature according to the curing requirements of the silicone material.

5. Injection molding

Type-C interface positioning: Place the pre processed Type-C interface in the predetermined position of the mold to ensure accurate positioning of the interface.
Silicone injection: Inject liquid silicone material into the mold through an injection machine to ensure that the silicone can evenly cover the Type-C interface.
Curing: According to the curing requirements of silicone material, control the curing temperature and time to ensure complete curing of silicone material.

6. Demoulding and post-processing

Demolding: After the silicone material is completely cured, carefully remove the product from the mold to avoid damaging the product.
Post processing: Necessary post-processing of the product, such as removing burrs, cleaning, inspection, etc., to ensure product quality.

7. Quality inspection

Dimensional inspection: Use high-precision measuring tools such as micrometers or coordinate measuring instruments to check whether the dimensions of the product meet the design requirements.
Appearance inspection: Check the appearance of the product to ensure that there are no defects such as bubbles, cracks, deformation, etc.
Waterproof test: Conduct IP68 waterproof rating test to ensure that the product can be immersed in water at a depth of 1.5 meters for 30 minutes without water ingress.

8. Waterproof testing method

Static pressure test: Place the product at a depth of 1.5 meters underwater and hold for 30 minutes to check for water infiltration.
Dynamic pressure testing: Apply dynamic water pressure on the surface of the product, simulate the actual usage environment, and check the waterproof performance.
Airtightness test: Use an airtightness tester to check the pressure changes inside the product to ensure no leaks.

9. Packaging and Storage

Packaging: Use appropriate packaging materials, such as anti-static bags, foam, etc., to package the product to prevent damage during transportation.
Storage: Store the product in a dry, ventilated environment, avoiding direct sunlight and high temperatures.

10. Delivery and Feedback

Delivery: Deliver the product to the customer, ensuring that the product is in perfect condition.
Feedback: Collect customer feedback and improve production processes and product quality in a timely manner.

summary

To achieve a waterproof rating of IP68 for Type-C interfaces through liquid silicone encapsulation technology, comprehensive consideration is required from multiple aspects such as design, material selection, process control, and quality inspection. By strictly controlling the quality and process parameters of each step, high-quality products that meet the IP68 waterproof rating requirements can be produced.