What is the plastic coating method and processing technology of 15CrMo steel plate?

The key methods of 15CrMo steel plate coating are flame-retardant plastic method, fluidity dipping method, electrostatic powder spraying method and so on. According to different manufacturing methods, the equipment and processing technology used are also different.

1. Flame Retardant Plastic Law

A method of using flame retardant plastic machine to produce plastic coated 15CrMo steel plate. This type of processing technology is often used for power line coating plastics. The coating thickness of the 15CrMo steel plate produced in this way is above 0.3 mm. During production, the feed extruder screw of the flame-retardant plastic machine squeezes the heated and melted plastic to the engine forming die. When the wear-resistant welding wire passes through the die hole, the plastic is evenly coated on the surface layer and dried and then placed Reel line.

2. fluidity impregnation method

The powdered plastic is added to the dust collection tank with a porous structure at the bottom and compressed into a certain amount of exhaust air. The plastic particles are boiled and floated. The 15CrMo steel plate to be coated, heated in advance to 320～480℃, is based on this at a certain rate. The surface layer is adhered with a layer of plastic, melted in a melting furnace at 150～250℃, varnished, and then cooled by water and dried in air. End to the I-shaped wheel reel. The thickness of the coating is 0.22～0.75mm, and the adhesion of the coating depends on the cleanliness of the surface of the 15CrMo steel sheet before plastic coating and the plastic coating processing technology.

3. electrostatic powder spraying method

Applying the basic principle of inductively charged particles for directional movement in an electric field, an electric field with a certain compressive strength is created between the plastic spray gun and the operating 15CrMo steel plate. The powdered plastic is quickly and evenly flowed into the 15CrMo steel plate by heating and melting under the effect of electrostatic force. , Finishing paint, the surface is coated with a layer of smooth plastic film, and the wire is wound after being cooled by water and dried by air.