▎ 摘　　要

NOVELTY - Preparing organic rigid reinforced and toughened alloy pipe for underground use, involves weighing 100-120 pts. wt. high-density polyethylene, 10-20 pts. wt. linear low-density polyethylene, 10-20 pts. wt. chlorinated polyethylene, 8-12 pts. wt. modified graphene, 6-12 pts. wt. compatibilizer, 1-3 pts. wt. lubricant, 3-9 pts. wt. flame retardant, 0.5-1.5 pts. wt. antioxidant, 1-3 pts. wt. coupling agent, 1-5 pts. wt. nano calcium carbonate, 1-3 pts. wt. processing aids, and 4-6 pts. wt. initiators. The linear low-density polyethylene, chlorinated polyethylene, antioxidant, and 1/2 of the total coupling agent is added into the high-speed mixer. The raw materials are mixed uniformly in the high-speed mixer, and added after plasticization Initiator, mixed to onbtain mixture A. USE - Method for preparing organic rigid reinforced and toughened alloy pipe. ADVANTAGE - The method improves graphene surface properties, effectively promotes the dispersion of nano-zinc oxide whiskers and graphene, prevents agglomeration, interacts with high-density polyethylene resin, improves the compatibility between systems, improves the mechanical properties, toughness and rigidity of the alloy tube, and improves the alloy tube The amount of carbon formed improves the thermal stability of the alloy pipe, notched impact strength of the buried organic rigidity reinforced and toughened alloy pipe is 6.3-6.6 kilo Joule/m according to GB/T1843-2008. DETAILED DESCRIPTION - Preparing organic rigid reinforced and toughened alloy pipe for underground use, involves weighing 100-120 pts. wt. high-density polyethylene, 10-20 pts. wt. linear low-density polyethylene, 10-20 pts. wt. chlorinated polyethylene, 8-12 pts. wt. modified graphene, 6-12 pts. wt. compatibilizer, 1-3 pts. wt. lubricant, 3-9 pts. wt. flame retardant, 0.5-1.5 pts. wt. antioxidant, 1-3 pts. wt. coupling agent, 1-5 pts. wt. nano calcium carbonate, 1-3 pts. wt. processing aids, and 4-6 pts. wt. initiators. The linear low-density polyethylene, chlorinated polyethylene, antioxidant, and 1/2 of the total coupling agent is added into the high-speed mixer. The raw materials are mixed uniformly in the high-speed mixer, and added after plasticization Initiator, mixed to onbtain mixture A. The high-density polyethylene, modified graphene, compatibilizer, lubricant, flame retardant, antioxidant, 1/2 total coupling agent, nano calcium carbonate, and processing aids are put into the high-speed mixer, stirred at medium for 30-40 minutes, mixture A is added and continue to stir for 10-20 minutes, and mixes to obtain mixture B. The mixture B is added to the twin-screw extruder, melted and extruded the profile. The profile is drawn in both directions in the winding direction and the forward direction to obtain the buried organic rigidity and toughening when the profile is cooled to 40-90 degrees C. The buried organic rigidity reinforced and toughened alloy tube are put on the conveying mechanism of the cutting equipment. The guide cylinders on the three side fixing bars respectively pushes the corresponding three guide blocks, and the guide blocks drive the two second rotating arms. The output shaft of the conveying motor drives the pulley to rotate, two pulleys drive the conveyor belt to rotate, and the three conveyor belts convey the buried organic rigidity reinforced and toughened alloy pipe, and the buried organic rigidity reinforced and toughened alloy pipe is covered by one end. The conveying mechanism conveys to the arc seat, turns on the cutting cylinder, the piston rod of the cutting cylinder pushes the cutting shell down, the cutting shell drives the cutting blade down, turns on the cutting motor, the output shaft of the cutting motor drives the cutting blade to rotate, and the cutting blade is organically buried in the ground Rigidity-enhanced toughened alloy tube is cut, the lifting cylinder is turned on, the piston rod of the lifting cylinder pushes the arc seat upwards, the arc seat passes through the lifting port and rises to the side of the push tube seat, opens the push tube cylinder, and the push tube cylinder piston rod pushes it The tube seat, the push tube seat pushes the buried organic rigidity reinforced and toughened alloy tube on the arc seat into the cooling tube. The water pump extracts the cooling water in the cooling water tank and transports the cooling water to the spiral pipe through the connecting pipe. The spiral pipe cools down the temperature of the cooling pipe, and the cooling pipe cools down the cutting position of the buried organic rigidity reinforced and toughened alloy pipe. The organic rigid reinforced and toughened alloy pipe buried in the ground is pushed out of the cooling pipe by the pipe seat, and the organic rigid reinforced and toughened alloy pipe buried in the ground falls to the filter plate in the header box, and the cooling water in the spiral pipe passes through the drain pipe. Then the cooling water flows through the filter water plate to the bottom of the header box, and the cut buried organic rigidity reinforced and toughened alloy pipe is taken out from the header box.