Production device of pipe body, and production method of strengthening pipe body based on device

A technology for producing a device and a pipe body, applied in the field of pipe body, can solve the problems of paint peeling, poor filling uniformity, inapplicability, etc., and achieve the effect of reducing the frequency of secondary processing, avoiding large inclination, and avoiding stress concentration.

Active Publication Date: 2018-11-06
福建晟扬管道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are several problems in the preparation of thermal insulation pipes by coating: first, after the coating is cured, the thickness formed on the surface of the pipe body is usually thin, and the heat insulation effect is limited, which leads to a limited application range and cannot be applied to extreme sections; Second, the interface between the paint and the formed pipe body is limited, and it is difficult to improve the bonding effect such as crosslinking, which makes the paint easy to fall off from the surface of the pipe body, resulting in poor stability and short service life
This method has the following disadvantages: the process is complex, multiple extruders need to be equipped at the same time, the structure of the cavity of the die head is relatively high, the process parameter setting is cumbersome and difficult to control; due to the different viscosity and melting temperature of different resins, Resins with similar properties are often used for co-extrusion, and the material selection is limited; in addition, after molding, the pipe body is heavy, which is inconvenient for installation and transportation
In addition, the foaming gun is used to spray the foaming slurry into the pipe to make it foam and fill naturally, which has the disadvantage of poor filling uniformity

Method used

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  • Production device of pipe body, and production method of strengthening pipe body based on device
  • Production device of pipe body, and production method of strengthening pipe body based on device
  • Production device of pipe body, and production method of strengthening pipe body based on device

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Effect test

Embodiment 1

[0047] like figure 1 As shown, this embodiment discloses a pipe body production device, which includes a mixing device, an extruder, a cooling device, a cutting machine, a lever type feeding device, and a pipe body surface detection device from front to back according to the technological process.

[0048] like Figure 2-3 As mentioned above, the cooling device includes a cooling heat exchange pipe 1001 and a water-cooled tank assembly; the cooling heat exchange pipe 1001 is arranged in the water-cooled tank assembly, and the water-cooled tank assembly includes a plurality of water-cooled tanks, and the cooling sequence is from front to back Arranged sequentially; the number of cooling heat exchange pipes 1001 is multiple and connected in parallel with each other, and each cooling heat exchange pipe 1001 extends from the beginning of the water-cooling tank at the starting position to the end of the water-cooling tank at the end position.

[0049] like Figure 4-6 As shown, t...

Embodiment 2

[0065] This embodiment discloses a method for producing a reinforced pipe body 11 using the production device of the pipe body in Embodiment 1. Step 1: After mixing polyvinyl chloride resin and glass fiber modified polypropylene in a mixing device, add titanate Coupling agent, vinyltrimethoxysilane, calcium carbonate, n-octadecyl propionate, titanium dioxide, and benzophenone-type ultraviolet absorbers are mixed;

[0066] Step 2: After being extruded by an extruder, the product is obtained after successively sizing, cooling, pulling, cutting, and testing.

[0067] Preferably, 70~90 parts of polyvinyl chloride resin, 1~3 parts of titanate coupling agent, 1~2 parts of vinyltrimethoxysilane, 10~20 parts of glass fiber modified polypropylene, 20~20 parts of calcium carbonate 35 parts, 0.1 to 0.5 parts of n-octadecanyl propionate, 1 to 2 parts of titanium dioxide, 2 to 5 parts of benzophenone ultraviolet absorbers; the temperatures of the extruder from the hopper to the die are res...

Embodiment 3

[0069] Such as Figure 10-12 As shown, this embodiment discloses a composite pipe body 11, which sequentially includes raw material mixing, extrusion, cooling, pulling, and cutting. The tube body 11 includes an inner layer tube body 111 and an outer layer tube body 112, and a gap layer is formed between the inner layer tube body 111 and the outer layer tube body 112;

[0070] A skeleton 13 is arranged in the gap layer, and the two ends of the skeleton 13 are respectively connected with the inner layer pipe body 111 and the outer layer pipe body 112; Surrounding the center at intervals, an accommodating cavity 14 is formed between the adjacent skeleton 13 and the inner tube body 111 and the outer tube body 112 .

[0071] The pipe body 11 is prepared from the following raw materials in parts by mass: 70-90 parts of polyvinyl chloride resin, 1-3 parts of titanate coupling agent, 1-2 parts of vinyltrimethoxysilane, glass fiber modified 10-20 parts of polypropylene, 20-35 parts o...

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PUM

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Abstract

The invention discloses a production device of a pipe body. The production device sequentially comprises a material mixing device, an extruding machine, a cooling device and a cutting machine from thefront to the back according to a technological process; the production device further comprises a pipe body surface detection device at the rear way of the cutting machine; and the cooling device comprises a cooling heat exchange pipeline and a water-cooling groove body assembly. The invention further discloses a method of producing a strengthening pipe body by using the production device of thepipe body. The production device and the method have the advantages that the strength is high, the cutting uniformity is good, and inferior-quality products are monitored on line.

Description

technical field [0001] The invention relates to the technical field of pipe bodies, in particular to a production device for pipe bodies and a production method for reinforcing pipe bodies based on the device. Background technique [0002] The plastic pipe body in the prior art usually adopts the following process, which successively includes a mixing device, an extruder, a cooling device, and a cutting machine. Among them, the mixing device is used to mix various plastic raw materials and auxiliary materials. The extruder is used to melt and extrude the mixed materials. After being shaped, it is cooled by a cooling device, and then cut by a tractor. [0003] However, plastic pipes are hardly used in large-scale drainage projects. The main reason is that the strength of the plastic pipe itself is not enough, and the ability to resist external pressure is not strong. Patent application 201620004009.4 provides a wear-resistant high-strength modified PP plastic pipe, including...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/88B29C47/08B29C47/92B29C48/92
Inventor 林荆何承枫林文标
Owner 福建晟扬管道科技有限公司
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