Manufacturing process of anti-corrosion high-strength pipeline

A manufacturing process and high-strength technology, applied in the direction of manufacturing tools, reinforced molding, molds, etc., can solve problems such as insufficient compressive strength and use restrictions, and achieve compact structure, long service life, increased compressive strength and corrosion resistance sexual effect

Inactive Publication Date: 2017-01-04
西安国蓝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its biggest disadvantage is insufficient compressive strength, and its use is limited in areas with deep burial and load-bearing requirements.

Method used

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  • Manufacturing process of anti-corrosion high-strength pipeline
  • Manufacturing process of anti-corrosion high-strength pipeline
  • Manufacturing process of anti-corrosion high-strength pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The process for manufacturing corrosion-resistant high-strength pipelines in this embodiment includes the following steps:

[0040]Step 1. Pour aggregates preheated to 135°C and modified sulfur heated to a molten state into a stirring container, and stir evenly at a constant temperature of 135°C to form thermoplastic concrete; the volume of the modified sulfur is 15% of the above thermoplastic concrete volume;

[0041] The aggregate includes coarse aggregate, fine aggregate and powder filler, the volume of the coarse aggregate is 35% of the volume of the thermoplastic concrete, the volume of the fine aggregate is 35% of the volume of the thermoplastic concrete, The volume of the powder filler is 15% of the volume of the thermoplastic concrete, the volume ratio of the fine aggregate to the coarse aggregate is 1:1; the volume ratio of the modified sulfur to the powder filler is 1:1;

[0042] The coarse aggregate is made of the following raw materials by volume: 75 parts ...

Embodiment 2

[0055] The process for manufacturing corrosion-resistant high-strength pipelines in this embodiment includes the following steps:

[0056] Step 1. Pour aggregates preheated to 125°C and modified sulfur heated to a molten state into a stirring container, and stir evenly at a constant temperature of 125°C to form thermoplastic concrete; the volume of the modified sulfur is 26% of the volume of thermoplastic concrete mentioned above;

[0057] The aggregate includes coarse aggregate, fine aggregate and powder filler, the volume of the coarse aggregate is 42.8% of the volume of the thermoplastic concrete, and the volume of the fine aggregate is 18% of the volume of the thermoplastic concrete, The volume of the powder filler is 13.2% of the volume of the thermoplastic concrete, the volume ratio of the fine aggregate to the coarse aggregate is 0.42:1; the volume ratio of the modified sulfur to the powder filler is 1.97:1;

[0058] The coarse aggregate is made of the following raw ma...

Embodiment 3

[0071] The process for manufacturing corrosion-resistant high-strength pipelines in this embodiment includes the following steps:

[0072] Step 1. Pour aggregates preheated to 148°C and modified sulfur heated to a molten state into a stirring container, and stir evenly at a constant temperature of 146°C to form thermoplastic concrete; the volume of the modified sulfur is 10% of the above thermoplastic concrete volume;

[0073] The aggregate includes coarse aggregate, fine aggregate and powder filler, the volume of the coarse aggregate is 46% of the volume of the thermoplastic concrete, and the volume of the fine aggregate is 36% of the volume of the thermoplastic concrete, The volume of the powder filler is 8% of the volume of the thermoplastic concrete, the volume ratio of the fine aggregate to the coarse aggregate is 0.78:1; the volume ratio of the modified sulfur to the powder filler is 1.25:1;

[0074] The coarse aggregate is made of the following raw materials by volume:...

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Abstract

The invention provides a manufacturing process of an anti-corrosion high-strength pipeline. The process includes the steps that 1, aggregate and modified sulfur are adopted to prepare thermoplastic concrete; 2, a releasing agent is sprayed to a metal pipeline mold; 3, whether rebars exist in the pipeline or not is determined, and if yes, the rebars are preheated; 4, the thermoplastic concrete is poured into the metal pipeline mold; 5, hot-pressing reshaping is carried out, and the anti-corrosion high-strength pipeline is obtained after being cooled and demolded. The compressive strength of the thermoplastic concrete prepared in the process of manufacturing the anti-corrosion high-strength pipeline is larger than or equal to 30 MPa, the acid-resisting rate is larger than or equal to 95%, it is indicated that the manufactured pipeline is high in strength and resistant to corrosion, the manufacturing process is simple, and the compressive strength of the manufactured pipeline is higher than that of C30 concrete pipeline soil; the pipeline has the advantages of being resistant to corrosion and freeze thawing, free of water seepage, high in through-current capacity, long in service life and capable of being completely recovered after being discarded to pour a new pipeline, and having the advantages of a plastic pipeline and a cement reinforced concrete pipeline.

Description

technical field [0001] The invention belongs to the technical field of pipe manufacturing, and in particular relates to a manufacturing process of a corrosion-resistant high-strength pipe. Background technique [0002] For a long time, cast iron pipes, cement reinforced concrete pipes and plastic pipes have been widely used in my country's drainage pipes. Cast iron pipes have high compressive strength and are mostly used for water supply, but their cost is high and they are not corrosion-resistant, so they are rarely used in the drainage field. Cement reinforced concrete pipes are low in price and high in strength, and are currently the mainstream products in drainage pipes; however, due to the water permeability of cement itself, leakage is caused; its water flow resistance is large, and its flow capacity is small, so it is easy to be corroded when discharging sewage. The design life is only 30 years; at the same time, the scrapped product becomes industrial waste and poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/14B28B21/10B28B21/56B28B21/96B28B21/82C04B28/36
CPCB28B21/10B28B21/14B28B21/56B28B21/82B28B21/96C04B28/36C04B14/28C04B14/068C04B18/08
Inventor 王许岗李天亮
Owner 西安国蓝环保科技有限公司
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