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通过机械运动方式软化完成焊接的方法
通过机械运动方式软化完成焊接的方法有:1.按运动轨道可分为直线型和旋转型直线型可用于直线焊缝的焊接和平面焊接的焊接,旋转型可用于圆形焊缝的焊接。在利用压力下的两部分在磨擦过程中产生的磨擦热量使接触部分的塑料熔融软化,对正固定直到凝结牢固。 2.超声波焊接超声波焊接就是使用高频机械能软化或熔化接缝处的热塑性塑料。被连接部分在压力作用下固定在一起,然后再经过频率通常为20或40千赫的超声波振动,换能器把大功率振动信号,转换为相应的机械能,施加于所需焊接的塑料件的接触界面,焊件接合处剧烈擦瞬间产生高热量,从而使分子交替熔合,从而达到焊接效果。
According to the motion track, it can be divided into linear type and rotary type. The linear type can be used for the welding of straight line weld and plane welding, and the rotary type can be used for the welding of circular weld. In the process of using the friction heat generated by the two parts under pressure, the plastic in the contact part is melted and softened, and the alignment is fixed until firm condensation. 2. Ultrasonic welding is the use of high frequency mechanical energy to soften or melt the thermoplastic at the joint. The connected parts are fixed together under the action of pressure, and then pass through the ultrasonic vibration with frequency of 20 or 40 kHz. The transducer converts the high-power vibration signal into corresponding mechanical energy, which is applied to the contact interface of the plastic parts to be welded. When the welding joint is violently rubbed, the high heat is generated instantly, which makes the molecules alternately fuse and achieve the welding effect.

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