粘合剂粘合工艺 - 优点,应用

粘合剂粘合工艺 - 优点,应用

什么是粘合剂粘合?

粘合剂是接合材料的方法,其中粘合剂(液体或半固态材料)放置在待连接的工件/零件(封件)的卸料表面之间。施加热量或压力或两者都被施加以获得粘合。下面给出了对粘合剂接头遵循的步骤的详细说明。

Adhesive Bonding Process Steps

需要三个基本步骤来进行粘合剂,包括粘合剂

(a)表面的制备,

通过化学蚀刻或机械磨损清洁工件表面。研磨,锉,丝刷,打磨和研磨爆破是一些机械清洁方法。接下来,通过它们的亲和力来测试制备的表面。它被称为防水测试。水的光滑扩散是一种表明表面在化学上清洁,而液滴的收集表明表面上的油膜的可能性。

(b)将粘合剂施加到配合表面上,和

Adhesives are applied on to the workpiece surface by hand brushing, spraying, roller casting, knife coating and dipping. They are also applied as sheet or tape type coating to the surface. The adhesive are either applied as one thick layer on one of the workpiece surface, or as a thin layer on surfaces of both the workpiece.

(c)工程/零件组装并固化关节。

After the application of the adhesive, the workpieces are assembled and held together by means of clamps, tools, tack welds, or other fixtures. During the assembly process, sufficient care should be taken so that the open time of the adhesive is not exceeded, the parts are put together in the proper sequence, the bonding is performed under specified environmental conditions, and the parts are held together until cured.

治愈联合
固化是从液态变化到固体的粘合剂的过程。用压力和加热或加入合适的催化剂进行粘合剂的固化。应始终均匀地分布在整个接头上。在其他地方给出了不同辅助和粘合组合的固化温度,时间和压力组合。

粘合剂接头的优点和缺点

粘合接头的优点

  • 快速和便宜的加入技术
  • 追随者不受热量的影响
  • 均匀应力分布
  • 加入大型结构的可能性
  • 能够加入不同的材料
  • 可以加入非常薄的追随者
  • 防毒和液体紧密接头
  • 没有缝隙腐蚀
  • 没有接触腐蚀
  • 良好的阻尼性质
  • 高动态强度

粘合剂接头的缺点

  • 对热量有限的稳定性
  • 高强度粘合剂通常是脆弱的
  • 长期使用可能会改变属性
  • 在许多情况下,追踪的清洁和表面制备是必要的
  • 通常需要特定的夹紧装置来固定关节
  • 加入部分的难以拆卸
蜂蜜梳子面板结构
粘合接头蜂窝梳子面板结构的应用

粘合剂接头的应用
1.金属与非金属粘合尤其是塑料是粘合剂粘合的主要应用。
2.用作铆接飞机结构的替代品。
3.广泛适用于将加强筋紧固到飞机皮肤,并在飞机中组装蜂窝结构,
4.广泛使用飞机内部结构的制造并为超音速提供光滑的表面。
5.在汽车行业中有用,用于将制动器衬到鞋子,自动变速箱和加强件,
6.。Find applications in the fabrication of railway coaches, boats, refrigerators, storage tanks, and microwave reflectors for radar and space communications.

Sachin Thorat.

Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.

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