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Inside spin type high-temperature-resisting ultra-quiet drainage pipe and manufacturing method thereof

A manufacturing method and high-temperature-resistant technology, which is applied to hoses, pipes, rigid pipes, etc., can solve the problems of high-temperature-resistant cost and high noise of drainage pipes, and achieve the effects of long service life, reduced friction, and improved impact resistance

Inactive Publication Date: 2014-06-25
QINGDAO HENGRUI PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes an internal spiral high temperature resistant ultra-quiet drain pipe and its manufacturing method, which solves the problems of high noise, low temperature resistance and high cost of the drain pipe in the prior art during use

Method used

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  • Inside spin type high-temperature-resisting ultra-quiet drainage pipe and manufacturing method thereof
  • Inside spin type high-temperature-resisting ultra-quiet drainage pipe and manufacturing method thereof
  • Inside spin type high-temperature-resisting ultra-quiet drainage pipe and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] See attached figure 1 , attached figure 2 And attached image 3 , 35% by weight of block copolymer polypropylene (PP-B), 10% by weight of viscous polymer elastomer, 50% by weight of barium sulfate, 2% by weight of dispersant, 1.5% by weight of even Joint agent, 1.5% by weight lubricant, fully stirred and mixed in a mixer, the mixing temperature is 70 ° C; the uniformly mixed material is extruded and granulated by a co-rotating twin-screw extruder to make silent material granules; Extrude the obtained pellets with a single-screw extruder through a head die with a rotatable threaded mandrel to form a tube blank with a single-layer structure of a noise reduction layer 1. The resulting tube blank is sized and cooled in a vacuum , traction, cutting and turning, and packaged into finished products. In this way, the noise reduction layer 1 single-layer inner spiral high temperature resistant and ultra-quiet is obtained, which is composed of PP-B35%, viscous polymer elastom...

Embodiment 2

[0045] See attached Figure 4 , 25% by weight of block copolymer polypropylene (PP-B), 5% by weight of 1,1,2,2-tetraphenylethylene (TPE), 64.5% by weight of BaSO 4 , the dispersant of 2.5% by weight, the coupling agent of 2% by weight, the stearic acid of 1% by weight, fully stir and mix in the kneader, mixing temperature 90 ℃; The twin-screw extruder is extruded and granulated to make silent material granules; the obtained granules and block copolymerized polypropylene raw materials are respectively passed through a composite co-extrusion head with a rotatable threaded mandrel by two single-screw extruders Die extruded to form a tube blank with a double-layer structure. The tube blank is sequentially composed of a noise reduction layer 1 made of a quiet material and a block copolymerized polypropylene resin layer, which is the first resin layer 3, from the inside to the outside; the obtained tube blank is passed through Vacuum sizing, cooling, pulling, cutting and turning, a...

Embodiment 3

[0049] See attached Figure 5 , 20% by weight of PP-B, 10% by weight of thermoplastic elastomer (POE), 65% by weight of BaSO 4 , the mixture of zinc stearate and polyethylene wax of 2% by weight, the coupling agent of 1% by weight, the white oil of 2% by weight, fully stir and mix in mixer, mixing temperature 110 ℃, will The uniformly mixed material is extruded and granulated by a co-rotating twin-screw extruder to make silent material granules; the above-mentioned granules and block copolymerized polypropylene raw materials are respectively passed through two single-screw extruders with rotatable screw threads. The three-layer composite co-extrusion die of the mandrel is extruded to form a tube blank with a three-layer structure of the inner layer, the noise reduction layer 1 and the outer layer; the obtained tube blank is subjected to vacuum sizing, cooling, traction, cutting and turning, and Packaged into a finished product. Thus, a three-layer inner spiral high temperatu...

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Abstract

The invention discloses an inside spin type high-temperature-resisting ultra-quiet drainage pipe and a manufacturing method thereof to solve the problem that existing drainage pipes are high in noise, not resistant to high temperature and high in cost and relates to the technical field of drainage. The inside spin type high-temperature-resisting ultra-quiet drainage pipe comprises a denoising layer, wherein spiral ribs are arranged on the inner wall of the denoising layer, the denoising layer is manufactured from, by weight, 20-35 percent of block co-polypropylene, 5-10 percent of viscous elastic bodies, 50-70 percent of barium sulfate, 2-3 percent of dispersing agents, 1-2 percent of coupling reagents, and 1-2 percent of lubricants, and a high-temperature-resistant polypropylene resin layer is further arranged on the outer surface of the denoising layer. According to the spin type high-temperature-resisting ultra-quiet drainage pipe and the manufacturing method thereof, by means of the denoising layer and the spiral ribs on the inner wall of the denoising layer, water falling noise of a building plastic pipeline system can be reduced to a level below 35 decibel, the heat-resistance temperature of a pipeline can reach 90 DEG C, the manufacturing cost of the drainage pipe is 10% less than that of a flexible cast-iron pipe, the service life of the pipe can reach 50 years, and the drainage pipe is easy to install, low in cost, economical and practical.

Description

technical field [0001] The invention relates to the technical field of water supply and drainage, in particular to a polypropylene high-temperature-resistant ultra-quiet drainage pipe with an inner spiral and a manufacturing method thereof. Background technique [0002] With the rapid development of modern information and technology, the construction industry is also developing very rapidly. The higher the height of the building, the greater the requirement for drainage technology. Plastic drainage pipes for construction first appeared in the late 1980s, and the most used ones are polyvinyl chloride (PVC) solid-wall pipes, but the noise of falling water from polyvinyl chloride (PVC) solid-wall pipes is high, reaching 76 decibels. In order to reduce noise, in the 1990s, hard polyethylene (UPVC) sound-absorbing drainage pipes were successively developed. Hard polyethylene (UPVC) sound-absorbing drainage pipes are energy-saving products that use plastic instead of steel. UPVC s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/21F16L11/26C08L53/00C08K13/02C08K3/30C08K5/098C08K5/09C08K5/01B29B9/06B29C47/00
CPCF16L9/21B29B9/06B29C48/022B29C48/09B29K2023/14C08L53/00C08L2201/08C08L2203/18C08L2205/03F16L11/12F16L11/26C08L101/00C08K13/02C08K2003/3045C08L23/0815C08L23/06
Inventor 李恒
Owner QINGDAO HENGRUI PLASTIC TECH
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