Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Manufacturing method of equidensite elastomer sound insulation material in different thickness for vehicle

A manufacturing method and equal-density technology, applied in the field of automobile material manufacturing, can solve problems such as unfavorable automobile lightweight goals, waste of material resources, inability to realize processing, etc., and achieve low material cost, good sound insulation effect and good physical properties Effect

Active Publication Date: 2014-06-04
SHANGHAI XINAN CAR DEADENING FELT
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of noise from all directions is often different. Using materials with a uniform thickness will greatly waste material resources in some areas with low noise, which is also not conducive to the goal of lightweight vehicles.
[0003] The Chinese patent with the application number 201010237114.X discloses a method for making a filling-molded sound insulation pad for automobiles. The method adopts the air-flow mixing filling molding method, and uses the filling system to fill the fiber material into the mesh mold according to the thickness of each part. Then molded, and finally water-cut and trimmed to obtain the product, but this method can only fill the fiber material into the mesh mold for molding, and it cannot be processed for other materials, especially the molded materials, which limits the sound insulation obtained. Other functions of felt

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of equidensite elastomer sound insulation material in different thickness for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A car front wall sound insulation product is arranged on the inner side of the car front wall, is a composite structure, is made of PUR foam and an elastic body sound insulation material, and the manufacturing method of the elastic body sound insulation material comprises the following steps:

[0029] (1) Weighing and mixing: After weighing the polyolefin elastomer, PE, barite powder and extender oil according to the ratio of 70:30:280:20, put them into the internal mixer for high-speed kneading, and exhaust once in the middle. After mixing for 6 minutes, the temperature reaches 130°C and then the rubber is removed.

[0030] (2) Rubber mixing: Put the above-mentioned rubber materials on the open mill and turn them evenly. The roller heating temperature is 120°C.

[0031] (3) Extrusion into sheets: put the above-mentioned rubber into the calender, and extrude into sheets through embossing rollers. The structure of the embossing rollers used is as follows: figure 1 As s...

Embodiment 2

[0036] A method for manufacturing an elastic body sound insulation material with equal density and different thickness for vehicles, the following steps are adopted:

[0037] (1) Raw material preparation: weigh polyolefin elastomer, PE, barite powder and industrial grade white mineral oil in a weight ratio of 80:20:290:10;

[0038] (2) Mixing: Put the above-mentioned raw materials into a banbury mixer for high-speed kneading. The time for the raw materials to be mixed in the banbury mixer is controlled at 5 minutes, and the temperature at the bottom of the mixing tank in the banbury mixer is controlled at 150°C. The temperature is controlled at 125°C during the debinding of the mill, and the exhaust is exhausted once in the middle to obtain the first rubber material;

[0039] (3) Rubber mixing: the first rubber material is placed on the open mill and covered with rollers to turn over evenly, and the roller heating temperature of the open mill is 110 ° C to obtain the second ru...

Embodiment 3

[0044] A method for manufacturing an elastic body sound insulation material with equal density and different thickness for vehicles, the following steps are adopted:

[0045] (1) Material preparation: weigh polyolefin elastomer, PE, barite powder and industrial grade white mineral oil in a weight ratio of 75:25:280:20;

[0046] (2) Mixing: Put the above-mentioned raw materials into a banbury mixer for high-speed kneading. The time for the raw materials to be mixed in the banbury mixer is controlled at 7 minutes, and the temperature at the bottom of the mixing tank in the banbury mixer is controlled at 170°C. The temperature is controlled at 135°C during the debinding of the mill, and the exhaust is exhausted twice in the middle to obtain the first rubber material;

[0047] (3) Rubber mixing: the first rubber material is placed on the open mill and covered with rollers to turn over evenly, and the roller heating temperature of the open mill is 130 ° C to obtain the second rubbe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a manufacturing method of an equidensite elastomer sound insulation material in different thickness for vehicle. The material is formed by mixing thermoplastic elastomer, PE (polyethylene), inorganic filler barite powder and extending oil, rubber mixing, extruding to form a sheet, cutting and forming. Compared with the prior art, the sound insulation material filled by the thermoplastic elastomer and barite powder is good in physical performance and good in sound insulation function, and capable of satisfying different noise reduction requirements in different regions. On the basis that the acoustic noise reduction performance is not influenced, the material cost is reduced, the manufacturing is energy-saving and environmental friendly and the material has a certain effect on automobile lightweight.

Description

technical field [0001] The invention relates to a method for manufacturing a material for automobiles, in particular to a method for manufacturing an elastic body sound-insulating material with equal density and different thickness for automobiles. Background technique [0002] The structure of the elastomer sound insulation material used in the current sound insulation pad products is generally of uniform thickness. In order to meet the acoustic requirements, a thicker structure is often used (the thicker the thickness, the better the sound insulation effect), the greater the weight of the parts. The amount of noise from all directions is often also different. Using materials with a uniform thickness will greatly waste material resources in some areas with low noise, which is also not conducive to the goal of lightweight vehicles. [0003] The Chinese patent with the application number 201010237114.X discloses a method for making a filling-molded sound insulation pad for au...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08L23/06C08K3/30B29B7/74B29C43/24B29C59/04
CPCB29B7/7461B29C43/24B29C59/04C08L23/00C08L23/06C08K2003/3045
Inventor 范洁
Owner SHANGHAI XINAN CAR DEADENING FELT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com