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Design principles hot riveting machine

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Design principles hot riveting machine

Date:2014-11-20 00:00 Source: Click:

A hot riveting machine commonly used pressure plate structure, the electric heating method heating plate heat transfer to the hot rivet head, head heating hot riveting riveting column, melted, and then blowing cooled and solidified to form a rivet head, fixed products. The whole framework of the form, from the mold (hot rivet head), two blocks down the mold plates, action for pneumatic control. Using the most advanced technology of plastic hot riveting, use a special plastic rivet riveting column can flush riveting, riveting hemisphere, countersunk rivet (countersunk riveted), circular flange riveting, riveting rib shape, folding mosaic covering etc., point contact with the workpiece in order to optimize the design of a new concept, the plastic parts with metal or other materials can not be welded components assembled into one riveting, riveting surface finish, forming fast, easy to crack brittle, beautiful firmly, simplify the production process, reduce material consumption, which greatly improved product quality, reliability and productivity, effectively extending the life, with advanced technology, reasonable structure, no vibration, no noise, no pollution, processing quality The main advantage is suitable for household appliances, lights, and other automotive plastic parts melting solder. Depending on the size of the plastic parts can set the heating power and die size to achieve a variety of plastic parts welding, simple, easy to use

Principle 2 welding ultrasonic plastic welding machine is: the machine will power through the ultrasonic transducer transformed into ultrasonic energy (ie frequency exceeds the threshold of human hearing frequency mechanical vibration energy), the energy transfer to the plastic parts by welding head to thousands of times per second, the ultrasonic frequency and amplitude of a certain piece of plastic joints after intense friction melted. After the vibration is stopped to maintain pressure on the workpiece so that the two short weldment molecular chaining solidification as one. Usually less than 1 second weld time, welding strength can be obtained with comparable body.

The ultrasonic metal welding process is a process between cold welding and friction welding between utilizing the high density energy high frequency mechanical vibration. Mechanical vibration of ultrasonic metal welding head parallel to the welding surface of the workpiece. When welding, the welding head by the static pressure acting on the welded surface vertically, while superimposed dither shearing force, when the shear force exceeds the elastic limit of the material, the contact surface of the workpiece occurs in parts start to slide, this shearing force during the welding process at a frequency of tens of thousands of times per second the constantly changing direction, and crushing the workpiece surface to remove dirt, clean metal surface started showed multiple point contact, with the continuation of the high frequency vibration, the contact area of the continuous metal pure expand, expand until the entire weld area, while the occurrence of atomic diffusion in the contact surface, the metal generates recrystallized fine grain structure and exhibits the characteristics of the metal cold deformation

4. pumping plate hot-melt welder that hot plate welding machine, mainly through a temperature-controlled heating plate to weld plastic parts. When welding, heating plate placed between two pieces of plastic, when the workpiece to live close to the heating plate, the plastic begins to melt. After heating at a pre-set time has elapsed, the plastic surface melting will reach a certain degree, this time on both sides of the workpiece to separate the heating plate is removed, the next two parts blend together, when it reaches a certain welding time and after welding depth, the welding process is completed


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