. Practical for bonding (glue). A class is polyolefin materials: Polyethylene (PE), high density polyethylene (HDPE), polypropylene (PP), poly butene (PB), this kind of plastic ballistic practical fusion (heating) is connected.
The chlorine content of normal PVC was 56.7%, and the content of C-PVC was 63 - 74%. Thus, PVC processing must exit stabilizer.
In order to improvement of PVC pipe in the name of the function, reduce ballistic expansion function and design means, also need to withdraw from the remaining processing aids, aggregate and dye. Therefore, at the beginning of the implementation of the normal PE pipe, did not go beyond the DN300, mainly used for indoor heat pipe with ballistic and. Increase in the amount of information used to lengthen the profit. The U-PVC is rarely used in the trajectory, in order to improve the PVC of hard and brittle, the plasticizer is exiting in consumption. PE on the implementation of the early adoption of ballistic, heating connection way, when the earth is convenient. Being used at the beginning of the year, PVC pipe connection form relatively easy, small caliber PVC ballistic adopted glue, adhesive connection, intermediate caliber PVC ballistic adopt socket interface, using a rubber sealing ring is a real flexible interface. Due to the thickness of the tube wall capability to protect the trajectory has the remaining just degree. In that way, the PVC - C trajectory is modified and improved by the conservative PVC - U trajectory. In order to accept external pressure and internal pressure, the greater the diameter of the PE trajectory, the more thick tube wall.
PVC and PE pipes are being used for the 60 time, and are used in the heat supply pipeline. Because of the increase of chlorine content of PVC - C, the anti - aging function and pressure function of PVC - C ballistic trajectory have great improvement.
Polyvinyl chloride (PVC) is generally a multicomponent plastic, PVC under heat, oxygen, light effect, the structure will change. This is the consumption of the form of the consumption of the form and the degree of consumption and consumption of the same form. Large diameter PE trajectory, the tube wall is absolutely thick. The difference between PVC - C and PVC is not the same as that of chlorine content, and the level of PVC - C is higher. The late PE pipe, because the constraints of data ", the compressive strength and anti cracking function are not good.
C-PVC is a product of further chlorination by PVC. We're going to have a PVC trajectory that is in the range of 0-12%, called U-PVC. Therefore, the use of the previous PVC trajectory as a broader scope.
PVC pipeline has been widely used in water supply network because of its simple construction and good hydraulic condition. With the increasingly stringent requirements of environmental protection, water quality indicators increased, taking into account the health and safety factors, PVC pipeline in the use of additives and other production processes must continue to be improved.
PE pipeline is stagnant, has been restrained in their own.
. In this connection, the form used for the connection of PE pipe trench, or a broad central earth day. PE (polyethylene) of the raw materials of the origin of a rich, from the members of the structure (C2H4) to see. At first, the electric heating riveting sleeve is created, which is the two pipe section or pipe fitting. Heating welding of PE pipe connection, operation time and request certain skilled operation skills. PE trajectory data function is also improving, from PE63, PE80, to PE100, the future will be stalled to PE115. The member structure of PE is one of the most easy to assemble objects.
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