Speakers are seen almost everywhere in daily life, such as headphones, cell phones, PDAs, MP3s, personal computers, private cars, children's toys, and more. With the further development of mobile phones and other consumer goods industries and the continuous pursuit of people's quality of life, the quality requirements of micro-speakers in the industry are getting higher and higher, green, high-fidelity, chip-type, miniaturization, thinning, and low. Power consumption, high power, multi-function, and componentization have become new development trends for electro-acoustic devices. Even new products such as ultra-thin silicon speakers and piezoelectric speakers have emerged. At this point, this market has begun to shift from price to high-end applications. The composition of the micro-speaker generally includes a sound film, a voice coil, a basin frame, a magnetic pole, a magnetic core, a magnetic cylinder and the like. All these small parts are assembled by glue bonding. A small micro-speaker sometimes uses as much glue as eight. Because of this, people in the industry have an unwritten saying that micro-speakers are actually making glue. This is enough to prove the role of glue in the microspeaker. In general, the bonding of the microspeaker can be divided into two large pieces, the bonding around the core and the bonding around the sound film. The bonding around the magnetic core, that is, the magnetic core and the magnetic pole, the bonding of the magnetic core and the magnetic cylinder; the bonding around the sound film includes the bonding of the sound film and the coil, and the bonding of the sound film and the basin frame. Especially worth mentioning is UV glue, which has been used in the high-end market for a long history of being considered as the most important bond in micro-speakers – sound film and voice coil bonding. Due to the fast curing speed, high production efficiency, good product consistency, high bonding strength and environmental friendliness, UV glue is gradually being used by more and more speaker manufacturers, especially those who want to enhance their strength and improve product quality. The manufacturers are optimistic.

UV胶具有以下特点： 

1．产品质量稳定，次品率低

    UV胶的另一特点是它的生产一致性好，进而次品率低。这主要是由于它的固 化方式决定的。紫外光固化胶一般都是由特定的紫外光设备来完成的。只要固化参数保持 恒定，就能保证固化效果的一致性，从而保证了产品质量的稳定性。

2．固话速度快

    UV胶的最大的一个特点就是固化时间短，通常都是以秒来计算。这与溶剂胶 的24小时相比，效率提高了成百上千倍。彻底解决了固化的瓶颈问题，大大缩短了生产周 期，提高了生产效率，增强了交货能力，节约人力及库存成本，提升了公司的竞争力。

3．适应性广

    UV胶的另外一个优势就是它适应性广。它适用于各种材质的音膜，如 PEN, PET, PEI, PAR等，而且对各种膜的质量也不敏感；UV胶的适应性广的另一面也表 现在它不仅适合于全自动线，也适合于半自动线。一般来说，只要再在目前的生产线上加 上一个紫外光固化设备，并把相应的装配制具稍作修改，保证紫外光能照到粘接面上即可 ；适应性广还体现在UV胶的物力性能很广，比如硬度可以从A3 到D69。

4．化学反应胶， 性能卓越

    UV胶的固化机理是聚合作用而产生高分子，因此固化后的UV胶具有卓越的化 学，物理和机械性能。UV胶固化后的各种性能变化范围很广，这就使得UV胶具有广泛的应 用。不同客户可以根据自己的要求选择出合适的UV胶。而UV胶的卓越的性能使得用它粘接 的微型扬声器能满足高品质的要求。

小喇叭技术不断更新，其配件之间的粘贴固化一直是最为关键的环节，小喇叭固 化采用什么胶水是重中之重。对此，经过各方面的测试，UV胶水无疑在各方面都符合小喇 叭固化的要求。

小喇叭UV胶性能特点

1、固化快、反应可控制；无溶剂、无污染；适合自动化作业；

2、粘接材料广泛、粘接强度高，可结构粘接、应用面广泛；

3、 光学性能优；胶液无色透明、固化后透光率 > 90% ，有无影胶之称；

4 、耐候性优，不黄变；

5 、缺点是被粘物必须一面透光，固化时需要设备才能固化；

小喇叭UV胶与其它胶区别

小喇叭UV 胶在UV光固化机的固化下，5S左右即可粘接完成，照射后即可达到较 高强度，可以满足自动化生产线节奏的需要；第二代丙烯酸酯结构胶 1-10min 初 固， 24h 才能达到最高强度；室温固化环氧结构胶 10-120min 初固， 7d才能达到 最高强度。

UV小喇叭固化胶注意事项: 

 1、UV小喇叭固化胶含有甲基丙烯酸及其酯类单体,对皮肤和眼睛有轻微刺激性,若 uv胶不慎溅入眼睛,请立即用大量清水冲洗,如仍有不适须到医院检查,皮肤接触uv胶后请立 即用肥皂和大量清水冲洗。

2、UV小喇叭固化胶应在阴凉干燥处保存,剩余uv胶不可倒回原包装。