Hot-plate welding is the process of welding two plastic parts together using a heated tooling plate. A weld rib or bead on each component is brought into contact with the hot plate. Heat conducts into the weld rib causing it to melt. The heated tool is then removed and the parts are pushed together until they bond to one another.
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Two components are brought into contact with a heated tool. The heat conducts into melt ribs causing them to soften. Also called the ‘Heat Phase’.
The components are removed from the heated tool and it is retracted out of the way. Also called the ‘Changeover Phase’.
The components are brought together and a hold pressure is applied until the weld cools. Also called the ‘Weld Phase’.
Learn about hot-plate welding process control.
Servo-controlled hot-plate welders eliminate the need for tool stops and provide true process control and speed.read more
Get rid of the stops and start controlling the weld process by distance and force with velocity control.read more
Reducing your open time will result in quicker cycle times and improved weld quality consistency.read more
Extol conducts ongoing tests with various coating types and we offer recommendations for the most suitable tool materials and coatings based on the unique attributes of each application.read more
Read our blog posts about hot-plate welding
We all love options – colors, cars, hobbies, music, and of course our favorite, plastic welding!
Let’s talk about a few of the differences between vibration and hot plate welding that may help in discerning when to choose one over the other. Ah, but first we should briefly review the two welding processes.
When considering the common plastics joining methods for assembling a new product, in the mix of options should be hot-plate welding. This low-force method of heating and bonding plastic parts has been around a long time. Contemporary machinery and tooling provide users with exceptional control and consistent weld results.read more
Ultrasonic welding vs. Hot-plate welding. When you picked your March Madness teams, you considered strength of schedule and how their weaknesses matched up. Let’s talk about welding plastic parts for life science applications and how weld strength and leak (weakness) compare between ultrasonic welding (USW) and hot-plate welding (HPW).read more
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