Preparation method of low-hardness high-volume resistance rubber water cutting strips

A rubber-water, high-volume technology, applied in rubber insulators, devices for applying liquid to surfaces, coatings, etc., can solve problems such as increased manufacturing costs, corrosion of body sheet metal, and poor anti-corrosion effect, and achieves good processability. , good performance, good reinforcement effect

Inactive Publication Date: 2019-03-12
武汉东海敏实汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the development experience of BMW and other models, the water-cut trim strip produced by the material with a volume resistivity of 10^4Ω*cm is likely to cause corrosion of the body sheet metal during the vehicle test. Spraying paint with high volume resistance increases manufacturing cost and has poor anti-corrosion effect

Method used

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  • Preparation method of low-hardness high-volume resistance rubber water cutting strips
  • Preparation method of low-hardness high-volume resistance rubber water cutting strips
  • Preparation method of low-hardness high-volume resistance rubber water cutting strips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1: The preparation method of a kind of low hardness high volume resistance rubber water-cut strip provided by the present invention comprises the following steps:

[0062] 1) Raw rubber mastication: The raw rubber is masticated on a pressurized internal mixer, the mastication time is 60s, and the mastication temperature is 60°C;

[0063] 2) One-stage rubber mixing: add one-stage rubber formula to the masticated raw rubber for mixing; the mixing process of the internal mixer is to pressurize and banbury for 4 minutes until the temperature reaches 155°C;

[0064] 3) Thinning of a section of glue: transport the mixed section of glue to the first open mill, and carry out thinning on the open mill for 2 minutes. After the thinning is completed, the film is sliced, cooled, and conveyed;

[0065] 4) Second-stage rubber refining: the first-stage rubber after thinning is milled on the second mill, and the raw materials of the second-stage rubber formula are mixed at t...

Embodiment 2

[0072] Embodiment 2: The preparation method of a kind of low hardness high volume resistance rubber water-cut strip provided by the present invention comprises the following steps:

[0073] 1) Raw rubber mastication: masticate the raw rubber on a pressurized internal mixer, the mastication time is 60s, and the mastication temperature is 80°C;

[0074] 2) One-stage rubber mixing: add one-stage rubber formula to the masticated raw rubber for mixing; the mixing process of the internal mixer is to pressurize and banbury for 5 minutes until the temperature reaches 160°C;

[0075] 3) Thinning of a section of glue: transport the mixed section of glue to the first open mill, and carry out thinning on the open mill for 3 minutes. After the thinning is completed, the film is sliced, cooled, and conveyed;

[0076] 4) Second-stage rubber milling: The first-stage rubber after thinning is milled on the second mill, and the raw materials of the second-stage rubber formula are mixed at the sa...

Embodiment 3

[0083] Embodiment 3: The preparation method of a kind of low hardness high volume resistance rubber water-cut strip provided by the present invention comprises the following steps:

[0084] 1) Raw rubber mastication: The raw rubber is masticated on a pressurized internal mixer, the mastication time is 60s, and the mastication temperature is 60°C;

[0085] 2) One-stage rubber mixing: add one-stage rubber formula to the masticated raw rubber for mixing; the mixing process of the internal mixer is to pressurize and banbury for 6 minutes until the temperature reaches 165°C;

[0086] 3) Thinning of a section of glue: transport the mixed section of rubber to the first open mill, and carry out thinning on the open mill for 4 minutes. After the thinning is completed, the film is sliced, cooled, and conveyed;

[0087] 4) Second-stage rubber milling: The first-stage rubber after thinning is milled on the second mill, and the raw materials of the second-stage rubber formula are mixed at ...

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Abstract

The invention discloses a preparation method of low-hardness high-volume resistance rubber water cutting strips. The method includes the steps: 1) raw rubber plasticating; 2) primary rubber mixing; 3)primary rubber thinning; 4) secondary rubber open mixing; 5) secondary rubber cutting strip latex collecting; 6) aluminum core gold preforming; 7) rubber extruding; 8) rubber pre-vulcanization; 9) rubber decoration strip flocking; 10) flocking curing. The prepared low-hardness high-volume resistance rubber water cutting strips meet requirements of volume resistivity higher than or equal to 10^6 omega*cm, the hardness is in shore A (60-75) degrees, materials are mixed according to a formula, extruded and vulcanized in a drying oven to prepare the rubber water cutting strips which meet requirements of sectional shapes, the section air holes of the water cutting strips are omitted, and appearance burrs of the water cutting strips are avoided.

Description

technical field [0001] The invention relates to the technical field of rubber water-cut trim strips for automobiles, in particular to a preparation method for rubber water-cut strips with low hardness and high volume resistance. Background technique [0002] Automotive rubber water-cut trim products are one of the important parts of automobiles, also known as protective molding trims, widely used in doors, windows, body, engine boxes and other parts, with sound insulation, dustproof, water seepage and reduce It has the function of vibration, maintains and maintains the small environment in the car, and plays an important role in protecting the electromechanical devices and accessories in the car. [0003] At present, the rubber water-cut trim products installed on most domestic models, the rubber material is tested according to the standard DIN IEC60093:1980, and the volume resistivity is around 10^4Ω*cm. According to the development experience of BMW and other models, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L91/06C08L71/02C08K13/02C08K3/04C08K3/34C08K5/09C08K3/22H01B3/28B60R13/08B05D1/06
CPCB05D1/06B60R13/08C08K2003/2296C08K2201/014C08L23/16C08L2205/025C08L2205/035H01B3/28C08L91/06C08L71/02C08K13/02C08K3/04C08K3/346C08K5/09C08K3/22
Inventor 圣朋
Owner 武汉东海敏实汽车零部件有限公司
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