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Sound insulating pad-top cover reinforcing beam for car roof and preparation method thereof

A technology for strengthening beams and sound insulation pads, applied in vehicle parts, transportation and packaging, etc., can solve the problems of heavy product weight, high labor intensity and high cost, and achieve the effect of low labor intensity of workers, ensuring product quality and high production efficiency.

Active Publication Date: 2011-04-27
YANTAI ZHENGHAI HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problems of high cost and heavy weight when the traditional car roof sound insulation pad and the top cover reinforcement beam are separated, and the integration of the two products has heavy weight, pollutes the environment, high labor intensity, low efficiency, and is not conducive to the health of workers, etc.

Method used

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  • Sound insulating pad-top cover reinforcing beam for car roof and preparation method thereof
  • Sound insulating pad-top cover reinforcing beam for car roof and preparation method thereof
  • Sound insulating pad-top cover reinforcing beam for car roof and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Example 1, see figure 1 , 2 , taking Magotan CC sound insulation pad-top cover reinforcement beam as an example, the specification of sound insulation pad-top cover reinforcement beam: L850*W629*T6.5mm; put the base material-PU foam board into the roller rubber with double-sided gluing function Glue inside the machine, rubber roller temperature: 30°C, rubber roller height: 5.5mm, double-sided uniform roller glue volume: 34g / m2, the glue used is environmentally friendly polyurethane glue, and the PU foam board that has been glued by the roller is sprayed on both sides 16g / m2 demineralized water containing curing agent, the curing agent is triethylenediamine in the amine curing agent, the dosage is 0.2-1% of the weight of the demineralized water; the PU foam board and the lower surface are covered with double-sided coating film Kraft paper, double-sided coated kraft paper is made by conventional technology, that is, a layer of high-temperature resistant adhesive film is ...

Embodiment 2

[0018] Example 2, see figure 1 , 2 , taking Xinbaolai sound insulation pad-top cover reinforcement beam as an example, the specification of sound pad-top cover reinforcement beam 2: L764*W398*8.5mm, put the base material-PU foam board into the roller glue with double-sided gluing function Glue on the machine, the temperature of the rubber roller is 50°C, the height of the rubber roller is 7.5mm, and the amount of glue on both sides is 44g / m2. 20g / m2 demineralized water containing curing agent, spread double-sided coated kraft paper on the lower and lower sides of the PU foam board sprayed with demineralized water, the double-sided coated kraft paper is made by conventional technology Both sides are evenly coated with a layer of high-temperature resistant adhesive film, placed in a hot mold for compression molding, mold temperature: 90°C, the production process adopts two-stage deflation and pressure holding technology, pressure holding delay Ⅰ: 12S, mold opening and deflation...

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Abstract

The invention discloses a sound insulating pad-top cover reinforcing beam for a car roof and a preparation method thereof. Particularly, a polyurethane (PU) foam board (10) is used as a base material, two pieces of double-side film coated kraft paper (40) and (50) are attached to both sides of the PU foam board, proper environment-friendly PU adhesive layers (20) and (30) are attached between the double-side film coated kraft paper and the base material, wherein the double-side film coated kraft paper is manufactured by respectively applying high-temperature resistant adhesive films evenly on both sides of the kraft paper, and the sound insulating pad-top cover reinforcing beam for a car roof is manufactured by forming in a hot mold. The product has no deformation, light weight and favorable sound absorbing, heat insulating, flame retarding and reinforcing performances.

Description

Technical field: [0001] The invention relates to the technical field of automobile roof sound insulation, in particular to a passenger car roof sound insulation pad-roof reinforcement beam and its production method, which is installed on the roof sheet metal in the cockpit of an automobile, and is located between the roof sheet metal and the roof reinforcement beam. The position between the interior ceiling plays the role of sound insulation, heat insulation, flame retardant and reinforcement. Background technique: [0002] Passenger car roof sound insulation pad-roof reinforcement beam, installed on the roof sheet metal in the cockpit of the car, is an important part of high-end cars, and plays the role of sound absorption, heat insulation, flame retardancy and reinforcement; but in fact the car Sound insulation pads are generally composed of non-woven fabrics processed from waste spinning fibers. Waste spinning sound insulation materials have good sound absorption, heat in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08
Inventor 朱维珍郭焕祥于兆汉张焕新王晓刚
Owner YANTAI ZHENGHAI HIGH TECH
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