Power cable protection pipe
A technology for power cables and protection pipes, applied in the field of plastic pipes, can solve the problems that the pipes fail to meet the technical requirements and the performance of the power protection pipes fail to meet the standard requirements, and achieves improved mechanical properties, less deformation, tensile strength and welding. The effect of increasing tensile strength
Inactive Publication Date: 2013-12-25
江苏瀚能电气有限公司
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Problems solved by technology
Since there is no MPP raw material specially designed for the production of MPP power protection tubes on the market, many properties of the produced power protection tubes cannot meet the standard requirements, especially the tensile strength and welding tensile strength.
However, tensile strength and welding tensile strength are the most important performance indicators in trenchless buried pipeline technology, so this type of pipe cannot meet the technical requirements
Method used
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Experimental program
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Effect test
Embodiment 1
[0015] Embodiment 1, a power cable protection tube, which is made of the following raw materials in parts by weight: PP-B: 50~85, PP-R: 10~50, filler: 5~15, antioxidant : 0.2~0.25, color masterbatch: 1.5~2.0; when preparing, add PP-B, PP-R, filler, antioxidant and color masterbatch into the mixer for stirring and mixing, first at 200~500r / Stir at a speed of 2.5-3.5 min, and then stir at a speed of 60-200r / min for 1.5-2.5 min, then transport it to a pipe extruder, extrude through a pipe extruder, and vacuum cool and shape it to obtain the product.
Embodiment 2
[0016] Embodiment 2, a power cable protection tube as described in Embodiment 1, the filler is an activated inorganic material, preferably calcium carbonate. The addition of fillers can effectively reduce the production cost, and at the same time improve the strength of the material to a certain extent.
Embodiment 3
[0017] Embodiment 3, a power cable protection tube as described in Embodiment 2, the calcium carbonate is 8-10 parts by weight, preferably 8 parts.
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Abstract
The invention relates to a power cable protection pipe. The power cable protection pipe is prepared from the following raw materials in part by weight: 50-85 parts of PP-B, 10-50 parts of PP-R, 5-15 parts of fillers, 0.2-0.25 parts of an antioxidant and 1.5-2.0 parts of color master batch. A preparation method of the power cable protection pipe comprises the steps of stirring and mixing the PP-B, the PP-R, the filler, the antioxidant and the color master batch into a mixer, conveying the mixture into a pipe extruding machine for extrusion, then carrying out vacuum cooling and forming to obtain the product. According to the power cable protection pipe, the PP-B and the PP-R with certain ratio are mixed, then certain parts of the fillers, the antioxidant and the color master batch are added, so that the tensile strength and the welding tensile strength of the obtained pipes after processing are greatly improved, and other mechanical properties are also improved to a certain extent; the technical indexes of the power cable protection pipe are superior to those of the ideal underground trenchless pipes, and the products are difficult to deform after being formed.
Description
technical field [0001] The invention relates to a plastic pipe, in particular to a power cable protection pipe. Background technique [0002] The current power cable protection pipes are basically extruded directly through the extruder using MPP. Since there is no MPP raw material specially designed for the production of MPP power protection tubes in the market, many properties of the produced power protection tubes cannot meet the standard requirements, especially the tensile strength and welding tensile strength. However, tensile strength and welding tensile strength are the most important performance indicators in trenchless buried pipeline technology, so this type of pipe cannot meet the technical requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a power cable protection tube with reasonable design and high tensile strength and welding tensile strength aiming at the deficiencies of the prior art....
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08L53/00C08L23/14C08K13/02C08K3/26
Inventor 王春吴金柱任飞建
Owner 江苏瀚能电气有限公司