Silent polyvinyl chloride drain pipe

A technology of polyvinyl chloride and polyvinyl chloride resin, applied in the field of drainage pipes, can solve the problems of affecting the quietness of the room, poor practicability, inconvenient installation, etc., and achieves convenient installation and use, simple manufacturing process steps, good impact strength and tensile strength The effect of elongation

Active Publication Date: 2004-04-07
重庆顾地塑胶电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it has a fatal weakness that it makes a lot of noise when draining water, which affects the quietness of the living room and sometimes wakes people up from their sweet dreams.
The reason why the traditional drainpipe has a lot of noise is that there is no strong sound-absorbing material such as barium sulfate in the drainpipe component
In the face of noise, people have made a lot of efforts, and have successively developed various noise-reducing drainage pipes, such as: Japanese Patent Laid-Open No. 5-271429, which discloses a kind of pipe that can make ordinary Noise reduc

Method used

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  • Silent polyvinyl chloride drain pipe
  • Silent polyvinyl chloride drain pipe
  • Silent polyvinyl chloride drain pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: see figure 1 , figure 2 and image 3 , the structural feature of the present invention is that the sound-absorbing core layer 3 is co-extruded between the outer skin layer 2 and the inner skin layer 1; Die head is made up of co-extrusion die 7 and composite die 8.

[0019] Its preparation process steps are:

[0020] Step 1, raw material preparation:

[0021] Prepare the inner and outer skin layer materials according to the following dosage:

[0022] Polyvinyl chloride PVC (SG5) resin 100Kg, chlorinated polyethylene (CPE) 8Kg, composite lead stabilizer 4.2Kg, calcium stearate (Cast) 0.3Kg, stearic acid (HST) 0.3Kg, paraffin wax (WAX) 0.1 Kg, bis(2-ethylhexyl) phthalate (DOP) 2.5Kg, activated calcium carbonate (CaCO 3 ) 30Kg, titanium dioxide (TiO 2 )1.2Kg;

[0023] Prepare the sound-absorbing core layer material according to the following dosage:

[0024] Polyvinyl chloride (PVC) resin 100Kg, chlorinated polyethylene (CPE) 15Kg, lead stabilizer 4....

Embodiment 2

[0056] Embodiment 2: Its structure, preparation mold and preparation process are identical with embodiment 1, and its difference is that in the sound-absorbing core layer 3, the consumption of chlorinated polyethylene (CPE) is 20Kg, and active calcium carbonate (CaCO 3 ) dosage is 60Kg, barium sulfate (BaSO 4 ) consumption is 100Kg.

Embodiment 3

[0057] Embodiment 3: Its structure, preparation mold and preparation process are identical with embodiment 1, and its difference is that in sound-absorbing core layer 3, chlorinated polyethylene (CPE) 50Kg, barium sulfate (BaSO 4 ) dosage is 300Kg.

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Abstract

The present invention is silent polyvinyl chloride drain pipe and its making process, and the silent polyvinyl chloride drain pipe features the extruded sound absorbing core layer between the outer layer and the inner layer. The sound absorbing core layer is produced with material including polyvinyl chloride in 100 portions, chlorinated polyvinyl chloride in 15-150 portions and barium sulfate in 50-500 portions. It has advantages of 2.7-12.9 dB lowered noise compared with common polyvinyl chloride drain pipe, rather high impact strength and tensile strength, simple production process and convenient use.

Description

technical field [0001] The invention relates to a drainage pipe, in particular to a polyvinyl chloride silent drainage pipe which can significantly reduce drainage noise. Background technique [0002] Polyvinyl chloride (UPVC) drainage pipes are widely used all over the world because of their low cost, beautiful appearance, convenient installation and maintenance, and long service life. But it has a fatal weakness that it makes a lot of noise when draining water, which affects the quietness of the living room and sometimes wakes people up from their sweet dreams. The reason why the traditional drainpipe has a lot of noise is that there is no strong sound-absorbing material such as barium sulfate in the drainpipe component. In the face of noise, people have made a lot of efforts, and have successively developed various noise-reducing drainage pipes, such as: Japanese Patent Laid-Open No. 5-271429, the title of the invention is "sound-proof pipe", which ...

Claims

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Application Information

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IPC IPC(8): B29C47/04B29C47/56
Inventor 付志敏赵劲松
Owner 重庆顾地塑胶电器有限公司
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