The most effective repair of plastic is based on the example of hand scissors, in which one of the handles broke due to excessive force. I will tell you about a method for restoring broken plastic products. This method will allow you to use them as intensively as before the breakdown.
What do we need
- Cyanoacrylate glue (regular superglue, and best of all gel - it does not spread);
- Paper tape;
- Soldering iron;
- A piece of stranded wire.
Preliminary restoration by gluing
First you need to restore the geometry of the broken handle. To do this, we glue it with superglue, following the rules for performing the work - the substance is applied to both surfaces, and after the reaction with the plastic begins, they must be pressed tightly together until completely hardened.
In order not to sit for several hours with scissors in your hands, we use paper tape to fix the broken handle.
Connection reinforcement
Once the glue has dried, scissors can be used, but if you cut something with force, they will most likely break again in the same place. To avoid this, it is necessary to perform reinforcement.To do this, we need to remove the insulation from a copper wire with a cross-section of 2.5 mm and cut 1 cm from the edge. Then it must be placed on paper tape, gluing only half, and then placed in the center of the glued joint and glued to the scissors with the same tape. Thus, on one side of the fault, the wiring harness will not be covered by anything.
Next, using a heated soldering iron, we begin to warm up the wires of the free edge, which, in turn, melt the handle and slowly sink into it. We smooth out the plastic that appears on top of the wires with a soldering iron, leveling out the traces of our intervention.
Then we repeat the procedure with the other edge of the tourniquet, after removing the tape. The wires should be completely immersed in the plastic; no protruding wires should be left. At the end of the work, we level the entire surface of the area where the reinforcement was carried out.
Reinforced connection on both sides.
Safety precautions
When working with a soldering iron, you should take precautions - the part above the handle is very hot, and the tip has the melting point of tin and can cause severe burns if it comes into contact with the skin.
Trial
After the plastic has completely cooled, the scissors are ready for use. To check the strength of the connection, take a sushi stick - it is made of wood and quite strong. To cut it, you have to put in a lot of effort, but the restored connection showed excellent results in this experiment, withstanding a fairly serious load.
Restoring plastic using reinforcement is a completely simple procedure, but very effective. In any case, now you definitely won’t have to throw away the scissors.
