If you need to connect plastic parts together, you don't always need to glue them together. In some cases, you can melt the plastic in the right place to join the plastic, and then combine the parts. When choosing the type of connection, one should take into account the type of material and its ability to connect through such an improvised welding.
Necessary
- - building hair dryer;
- - welding gun;
- - soldering iron (soldering station);
- - filler rod.
Instructions
Step 1
Determine if the plastic is melt weldable. Plastics can be welded easily, with difficulty, or not melt at all. This can be found out empirically. Take a piece of the test material using pliers or tweezers and heat over an open flame. Perform this procedure in air to avoid exposure of the respiratory tract to combustion products.
Step 2
If you want to melt a plastic bottle, cut it into pieces and place it in a saucepan or other container, then heat it over a fire with a water bath. Pour the softened plastic into the mold or treat the seams of the products to be joined with it. In this case, one should not only be careful, but also work quickly, otherwise the plastic will harden prematurely.
Step 3
Use a soldering iron tip to melt the plastic. It is more convenient to use not an ordinary soldering iron, but a soldering station, which makes it possible to regulate the heating temperature of the tip. The required temperature parameters are also selected empirically on pieces of material. If the soldering iron is handled carelessly, there is a risk of ruining the plastic surface or making the seam unnecessarily brittle.
Step 4
If possible, purchase a special electric welding gun that melts plastic and various types of plastics. The set also contains samples of material, with the help of which seams and joints are melted. The procedure for using the pistol and safety measures for handling it are described in the instructions for the device.
Step 5
For some types of plastics, a building hair dryer can be used to heat the material to the required temperature. Pre-clean the surfaces to be joined on both sides of the future seam. Select the required nozzle and filler rod. It is advisable to do a test melting of the plastic and check how compatible the materials to be joined are.
Step 6
Warm up the hair dryer to stabilize the temperature. Secure the parts to be melted using a vise or clamps. To speed up the melting process, sharpen the end of the filler rod. Weld the parts by melting them with a hairdryer, while lightly pressing the bar against the surfaces to be melted. After the melt has solidified, treat the weld surface to give it a smooth appearance.
