When you take a phone apart, you may find some black foam inside. It's actually polyurethane foam. It has the characteristics of uniform density, softness and durability, wear resistance, sound insulation and heat insulation. Its delicate structure can effectively prevent dust and impurities from entering and protect the safety of the internal components of the mobile phone. At the same time, polyurethane foam has good resilience and shock absorption, which can effectively reduce the impact of external impacts on the interior of the mobile phone and protect the stability and durability of electronic equipment.

Features of polyurethane foam:

Softness and elasticity: Polyurethane foam has good softness and elasticity, which can effectively absorb shock and vibration and protect the phone from damage.

Sound and heat insulation: Polyurethane foam has good sound and heat insulation, which can effectively reduce the noise inside the phone and keep the temperature of the phone stable.

Flame retardant and chemical resistance: Polyurethane foam has good flame retardancy and chemical resistance, which can improve the safety of mobile phones.

Processability and recyclability: Polyurethane foam is easy to process into various shapes and sizes, and is recyclable and environmentally friendly.

 

Advantages of polyurethane foam:

Excellent performance: Polyurethane foam has good softness, elasticity, sound insulation, heat insulation, flame retardancy and chemical resistance, and can meet the diverse material needs of mobile phones and other electronic devices.

High cost performance: The production cost of polyurethane foam is relatively low, and it has good performance and service life, making it cost effective.

Good environmental protection: Polyurethane foam is recyclable, has little environmental pollution, and is in line with the concept of sustainable development.

 

When selecting polyurethane foam, you need to consider its density, hardness, thickness and other parameters to ensure that it can effectively protect the internal components of the mobile phone and does not affect the overall performance of the mobile phone. At the same time, attention should also be paid to selecting products with excellent quality and production technology to ensure their service life and performance stability.

 

The die-cutting and punching process of polyurethane foam refers to cutting and punching polyurethane foam into various shapes and sizes according to the internal structure and usage requirements of the mobile phone, so that it can meet the internal space and functional requirements of the mobile phone. Die-cutting and punching processing is an efficient, precise, and environmentally friendly processing method that can meet the complex shape and size requirements of foam die-cut parts for mobile phones and other electronic devices. Improve the efficiency of mobile phone assembly, reduce production costs, and improve the user experience of mobile phones.

 

Shenzhen Kaiming Die Cutting Processing can provide customers with polyurethane foam material technical consultation and die cutting processing adhesive solutions. From materials, die-cutting, and adhesive backing, we provide customers with one-stop solutions and provide customers with high-quality, cost-effective end products.

 

Black foam is mainly used in the following aspects inside mobile phones:

1. Gap filling inside the mobile phone: Black foam can fill the gaps inside the mobile phone and improve the overall stability of the mobile phone.

2. Protection of internal components of the mobile phone: Black foam can absorb and disperse the impact force inside the mobile phone, protecting the internal components of the mobile phone from damage.

3. Mobile phone heat dissipation: Black foam has good thermal conductivity, which helps dissipate the heat inside the mobile phone and prevents the mobile phone from overheating.

4. Mobile phone shock absorption and noise reduction: Black foam has good compression resistance and resilience, which can effectively reduce vibration and noise inside the mobile phone and improve the user experience of the mobile phone.

 

In addition to the inside of mobile phones, black foam (polyurethane foam) is also widely used inside other electronic products, such as tablets, laptops, cameras, etc., to provide sealing and cushioning protection. When selecting and using polyurethane foam, you should pay attention to its characteristics, advantages, selection precautions, die-cutting and punching processing, etc., to give full play to its advantages and cost-effectiveness.