A kind of non-r-mouth double-bevel agricultural polyvinyl chloride nine-meter pipe and its preparation process

Abstract

The invention discloses an agricultural polyethylene nine-meter tubular product without an R port and double bevel angles, wherein a formula of raw materials is prepared in parts by weight: 65 to 80 parts of PVC (Polyvinyl Chloride), 20 to 30 parts of light calcium carbonate, 1 to 2 parts of CPE (Chlorinated Polyethylene), 0.8 to 1.5 parts of stabilizing agent, 0.2 to 0.5 parts of paraffins, 0.1 to 0.2 parts of stearic acid, and 0.05-0.1 parts of carbon black. According to the nine-meter tubular product without the R port and the double bevel angles provided by the invention, the tubular product avoids going bad due to too high or too low temperature when the R port is processed and the tubular product is carried out secondary heating and roasting, so that quality of the tubular product is severely influenced, and a situation that the R port is generally drained when a customer is using the tubular product occurs. Meanwhile, a pipe fitting is directly utilized without a rubber ring when a nine-meter tubular product without the R port and double bevel angles is arranged, so that the tubular product is convenient and quick to arrange, but a phenomenon of tipping or damaging the rubber ring is not happened; and furthermore, a draining problem caused by superhard rubber rings and asymmetrical butted pipes while construction is carried out in winter is overcome, and the draining problem caused by too soft and easily damaged rubber rings while the construction is carried out in summer is overcome as well.

Description

technical field [0001] The invention relates to polyvinyl chloride pipes and belongs to the field of polymer materials. Background technique [0002] At present, the R-port pipe has the following defects: [0003] 1. When processing the R port, the pipe needs to be reheated and baked. Therefore, it will deteriorate due to high or low temperature, which seriously affects the quality of the pipe, resulting in common water leakage at the R port during the customer's use. . [0004] 2. The R-port pipe needs to be installed with an apron. The apron is made of rubber, which is not environmentally friendly and is easy to be broken and overturned during installation. It will harden after a long time and cannot seal the water. Because the apron It is not easy to find on the inner wall of the pipe, and the water leakage at the R port is only discovered when the entire pipeline is installed and debugged. The usual solution is to disassemble the entire pipeline, which wastes manpower ...

AI Technical Summary

Problems solved by technology

[0003] 1. When processing the R port, the pipe needs to be reheated and baked. Therefore, it will deteriorate due to high or low temperature, which seriously affects the quality of the pipe, resulting in common water leakage at the R port during the customer's use.

[0004] 2. The R-port pipe needs to be installed with an apron. The apron is made of rubber, which is not environmentally friendly and is easy to be broken and overturned during installation. It will harden after a long time and cannot seal the water. Because the apron It is not easy to find on the inner wall of the pipe, and the water leakage at the R port is only discovered when the entire pipeline is installed and debugged. The usual solution is to disassemble the entire pipeline, which wastes manpower and financial resources, and affects the best irrigation for farmers. season;

Therefore, it is easy to be squeezed and deformed during loading and transportation, resulting in failure to install or water leakage after installation. At the same time, the R-port pipe will cause the transportation vehicle to be too long during transportation, which will affect traffic safety and increase transportation costs.

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