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HDPE double-wall corrugated pipe and preparation technology thereof

A double-wall corrugated pipe and preparation process technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of lack of hardness, high cost of raw materials, and it is difficult to meet the standard of ring rigidity, and achieve simple and flexible raw materials. Good, improve the effect of product quality

Inactive Publication Date: 2016-11-09
楼柏木
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a HDPE double-wall corrugated pipe and its preparation method. The technical problem to be solved is: the raw material cost of the existing HDPE double-wall corrugated pipe is high, and the hardness is slightly insufficient, and it is not easy to reach the ring rigidity. standard

Method used

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  • HDPE double-wall corrugated pipe and preparation technology thereof
  • HDPE double-wall corrugated pipe and preparation technology thereof
  • HDPE double-wall corrugated pipe and preparation technology thereof

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Embodiment Construction

[0015] The HDPE double-wall corrugated pipe proposed by the present invention and its preparation process will be described in more detail below in combination with various preferred embodiments.

[0016] The invention provides a HDPE double-wall corrugated pipe, the raw materials of which are composed of 40-48% PP resin, 46-54% talcum powder, 0.8-1.2% antioxidant and 4.8-5.2% color masterbatch.

[0017] During specific implementation, the preparation process steps of the HDPE double-wall corrugated pipe are:

[0018] First, according to the raw material formula, take 44 parts of PP resin, 50 parts of talcum powder, 1 part of antioxidant, and 5 parts of color masterbatch and mix them evenly;

[0019] Secondly, the uniformly mixed raw materials are sent to the inner wall extruder and the outer wall extruder of the double-wall corrugated pipe to be plasticized at a temperature of about 190 degrees Celsius, and the inner wall molten material and the outer wall molten material ar...

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Abstract

A preparation technology for a HDPE double-wall corrugated pipe comprises the following steps: step 1, mixing, concretely, getting 40-48 parts by weight of PP resin, 46-54 parts by weight of talcum powder, 0.8-1.2 parts by weight of an anti-oxidant, and 4.8-5.2 parts by weight of color master batch, and mixing uniformly; step 2, plasticizing, concretely, sending the mixed materials into an inner-wall extruder and an outer-wall extruder for the double-wall corrugated pipe for plasticizing and extruding; and step 3, setting, concretely, sending the plasticized material fluid extruded from the inner-wall extruder and the outer-wall extruder of the double-wall corrugated pipe into a setting die for the double-wall corrugated pipe for setting, and cooling to obtain the HDPE double-wall corrugated pipe.

Description

technical field [0001] The invention relates to the field of polyethylene corrugated pipes, in particular to a high-toughness, high-hardness anti-exposure HDPE double-wall corrugated pipe and a preparation method thereof. Background technique [0002] Double-wall corrugated pipe is a new type of pipe with a corrugated outer wall and a smooth inner wall. At present, it has been widely used in municipal engineering rainwater and sewage discharge, sewage discharge in living quarters, industrial and mining enterprises, and cables and wire sheaths. The raw materials of existing HDPE corrugated pipes are mostly composed of 20% PE resin, 30% PE recycled material, 3% color masterbatch and 47% reinforcing material. High-quality HDPE corrugated pipes are expensive, and the hardness is slightly lacking, especially the ring rigidity of the made corrugated pipes, which is not easy to meet the standard. In addition, the above-mentioned existing HDPE bellows are not resistant to sunlight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/34F16L9/18
CPCC08K3/34C08L2201/08C08L2203/18F16L9/18C08L23/12
Inventor 楼柏木杨自敬
Owner 楼柏木
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