From medical, electronic packaging, to automotive, textile, and joining other dissimilar materials such as metal to plastic or to ceramic, plastic welding across PVC, HDPE, and other high-heat resistant materials has proven highly beneficial across various industries. Besides, the process only seems so easy. You really are welding plastic as one would play around with melting random plastic stuff in their childhood. However, you can get only so much from a bad weld. Interestingly, what is used to repair materials and kits is now more likely to damage and ruin them. You need to be aware of certain facts before you take plastic welding into your hands.
➔ Don’t make the mistake of welding thermosets. When it comes to plastics, it is categorized into two segments, namely, thermosets and thermoplastic. Thermosets are not weldable. They don’t melt.
➔ Plastic expands on heating. It shrinks on cooling. If the material is not placed correctly, chances are it will bend to the welded side. Make sure you weld from both sides to keep its shape and functionality of the welded item intact.
➔ Always keep in mind the following three parameters of welding:
1.Time: time taken by the weld material to reach the welding temperature and time taken to return to room temperature.
2.Temperature: the temperature range that can be tolerated by the thermoplastic.
3.Pressure: Optimum pressure comes into play. Too much or too low pressure can make the welding unsuccessful.
➔ Certain materials require preparation before welding. Some plastic substances like ABS or polycarbonate are hygroscopic in nature. Hygroscopic refers to the tendency of a substance to absorb moisture from its surroundings. These need to be dried well prior to welding. Keep the amount of material to be welded and dry only that part to save time.
➔ Don’t fail to use nitrogen in case of hot air welding to avoid any oxidation in the process. Although it is hard to get rid of oxygen entirely, you must aim to minimize its presence as much as possible. Also, make sure that the air supply is clean, oil-free, and dry as it may hinder the mixing of two materials.
In case you are looking for quality welding kits and tools to get your job done, browse our website or dial 817- 381- 9398 today for any queries.
➔ Don’t make the mistake of welding thermosets. When it comes to plastics, it is categorized into two segments, namely, thermosets and thermoplastic. Thermosets are not weldable. They don’t melt.
➔ Plastic expands on heating. It shrinks on cooling. If the material is not placed correctly, chances are it will bend to the welded side. Make sure you weld from both sides to keep its shape and functionality of the welded item intact.
➔ Always keep in mind the following three parameters of welding:
1.Time: time taken by the weld material to reach the welding temperature and time taken to return to room temperature.
2.Temperature: the temperature range that can be tolerated by the thermoplastic.
3.Pressure: Optimum pressure comes into play. Too much or too low pressure can make the welding unsuccessful.
➔ Certain materials require preparation before welding. Some plastic substances like ABS or polycarbonate are hygroscopic in nature. Hygroscopic refers to the tendency of a substance to absorb moisture from its surroundings. These need to be dried well prior to welding. Keep the amount of material to be welded and dry only that part to save time.
➔ Don’t fail to use nitrogen in case of hot air welding to avoid any oxidation in the process. Although it is hard to get rid of oxygen entirely, you must aim to minimize its presence as much as possible. Also, make sure that the air supply is clean, oil-free, and dry as it may hinder the mixing of two materials.
In case you are looking for quality welding kits and tools to get your job done, browse our website or dial 817- 381- 9398 today for any queries.
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