Production process and equipment of PVC PIPE
PVC PIPE MANUFACTURING PROCESS:
1. Preparation of raw materials (PVC and plastic additives)
2. Open the mixer and mix the feed
3. FORCED FEED
4. CONICAL TWIN-SCREW EXTRUDER is used
5. Use extrusion die
6. Sizing Sleeve
7. Spray vacuum sizing box
8. AFTER IMMERSION COOLING WATER TANK
9. INK PRINTER
10. Through the crawler
11. After the KNIFE CUTTING MACHINE TO CARRY OUT CUTTING
12. Put the finished product into the pipe rack
13. Final Product Inspection Package
PVC pipe production line is mainly based on PVC (polyvinyl chloride) as the main raw material is mainly used to produce a variety of PVC pipe. Because of its strong corrosion resistance and fire and heat resistance, PVC pipe (UPVC rpe pipe) is widely used as the top of building pipes, sewer pipes and drainage pipes Cable Protection Pipe, and other related fields.
PVC pipe equipment is one of the most common plastic pipe equipment, which is composed of Extruder, die, vacuum sizing box, drawing machine, mixer and cutting machine.
All kinds of raw materials needed by the pipe material mixing system are mixed by hot mixing and cold mixing step by step, and then blown into the dry material bin for use. Through different feeding methods, such as metering feeding or gravity feeding feeding, the material is fed into the extruder through the shearing action of the screw Rod as well as the action of external heat, and then is plasticized to the head of the extruder The material is given a definite shape in the die head and is further plasticized and removed from the extruder.
The internal pressure and vacuum sizing can be used for PVC pipes. For example: Vacuum sizing method, after the initial forming of the pipe head first into the spray sizing box, the pipe through the sizing sleeve, and then in the outer wall spray sizing box PVC pipe vacuum, the inner wall of the sizing sleeve is adhered to the inner wall of the pipe by internal pressure, and the pipe is cooled and shaped rapidly under the action of spraying water.
The pipe completely cooled in the spray sizing box will move forward at a constant speed under the action of the drawing machine. Under the control of the metering device, the planet saw can cut the pre-set length of the pipe, and finally go through the reaming process The production of pipe material can be completed.
Pipe production can use Shandong polymer additives processing additives, impact modifier and stabilizer to ensure production quality, reduce costs and extend the production cycle.