Introduction to Earphone-Manufacturing Material of Earphone

Introduction to Earphone-Manufacturing Material of Earphone
 
The power and usage of headphones are different from speakers, so there are some differences in their requirements for manufacturing materials. The materials for making headphones [excluding speakers and wires]. The manufacture of loudspeaker first needs to consider the stability, the resonant box will not sound well, but the earphone does not need to consider this point too much. For the weak and low power of the earphone, the thickness of the ear shell of 1mm is strong enough, too thick is not necessarily a good thing, it will increase the total weight. Stir-fried XX material has a sound quality. Help, mostly with ulterior motives. The speaker does not need to be worn, and will not touch the human body in use, while the headphone is different, so the headphone needs to maintain a smaller weight to enhance wearing comfort.
 
Plastic
 
Plastic is one of the most common materials in earphone manufacturing. It has moderate density and strength. It has strong plasticity. Using plastic, it can design various shapes. It is widely used in earphone design of various grades. It is the most widely used material in earphone manufacturing at present. It can be used not only for ear shell design, but also for headband design.
 
Because of the particularity of earphone, it will inevitably produce friction with clothing, hair and so on. Therefore, the method of spraying PV and UV paint on plastic to decorate is difficult to endure and easy to crack. It is a relatively good method to use natural plastic high gloss demoulding, but it also has the problem of easy scratch. Therefore, most of the earphone color is relatively simple. Most of them are black. But this is not absolute, there are a few headphones that follow the fashion line, using color painting.
 
Metal
 
Metal material is also common in earplug earphone design, mostly aluminum alloy. Metal material is suitable for finishing and small batch production. In addition to excellent natural color, metal can also be colored by oxidation, electroplating and other processes, or by sandblasting, wire drawing and other processes to enhance texture. Metal has become the second choice besides plastics, but the metal density is high, so we need to control the weight when using it, otherwise the wearing comfort will be reduced.
 
Metal has excellent ductility and is suitable for stamping. The mesh is refined and beautiful. Therefore, metal is also used in the manufacture of mesh for large headphones. Most of the metals used here are iron.
 
Metals also have good strength. Some key parts of mechanical structure, such as the expansion part of the headband and the rotating shaft part of the ear case, use many examples of metal materials. Most of the metals used here are stainless steel, and a small amount of aluminium alloy.
 
There are also special metal applications, such as the hook for Aurvana air headphones, made of nickel-titanium alloy, also known as memory metal.
 
woodiness
 
Wood material is seldom used in earphones, but wood has a unique texture, strong decorative, and a small number of earphones are used to design ear shells with various kinds of solid wood. Wood processing costs are not lower than metal because of the need for long time drying, so wood is mainly used in the design of high-end earphones. Dealers like to add a lot of acoustic concepts to wood, what sound quality is outstanding and so on. In fact, this is not the case.
 
There have been a number of earplug products made of solid wood, but they all failed one after another. The main reason is that wood is not suitable for refined small parts processing, and too small items can not reflect the wood texture. With the failure of the attempt, wood earplugs are basically missing.
 
Foaming sponge and leather, flannel, etc.
 
In the manufacture of earpads, foam sponges are generally used as the main material, while leather, flannel and other materials are wrapped, because earpads will directly contact with the skin, and the quality of their touch directly affects the comfort of wearing. Leather is mainly divided into artificial leather and dermis. Only a few high-end headphones use sheepskin, while most of the leather is artificial leather. Artificial leather can be divided into many kinds, but most of them are not very breathable and have different tactile sensations. It can not be generalized. Some textures are close to plastics, some are close to dermis, and some confuse concepts with strange names, such as "protein leather". Fabric is also a very common kind, mostly velvet, in order to listen, often called "velvet", in fact, and swans have nothing to do with the velvet, velvet feel good, air permeability is good, but the shortcoming is easy to absorb sweat, dirty easy to clean, sweat into the sponge, a long time will also make the sponge lose its elasticity.

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