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Method for manufacturing silica gel reprinting model of automotive instrument board slush mold

A technology for automobile instrument panels and manufacturing methods, which is applied in the field of slush molding mold manufacturing for automobile interior products, and achieves the effects of good curing effect, simple method, and low pattern loss rate

Inactive Publication Date: 2016-02-24
JILIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No patents have been found on the production method of silicone replica molds for slush molding molds for automobile dashboards

Method used

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  • Method for manufacturing silica gel reprinting model of automotive instrument board slush mold
  • Method for manufacturing silica gel reprinting model of automotive instrument board slush mold
  • Method for manufacturing silica gel reprinting model of automotive instrument board slush mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Spray the addition-forming pretreatment agent on the surface of the pattern area of ​​the wrapped leather substitute wooden mold with pattern that has been prepared in advance. The number of sprays is 1 time, the distance is 24cm perpendicular to the surface of the pattern area, and the moving speed is 30mm / s. After the surface of the treatment agent is dry, apply silica gel profiling on the surface of the substitute wood model, pour addition-type silica gel into the profiling, and after curing for 6 hours at 25°C, separate the silica gel model from the skin-wrapped mold to obtain a fully cured model with patterns. Silicone replica mold.

Embodiment 2

[0035] Spray the addition forming pretreatment agent on the surface of the pattern area of ​​the wrapped leather substitute wood mold with pattern that has been made in advance, the number of sprays is 2 times, the distance is 25cm from the surface of the pattern area, and the moving speed is 32mm / s. After the surface of the treatment agent is dry, apply silica gel profiling on the surface of the substitute wood model, pour addition-type silica gel into the profiling, and after curing for 7 hours at 25°C, separate the silica gel model from the skin-wrapped mold to obtain a fully cured model with patterns. Silicone replica mold.

Embodiment 3

[0037] Spray the additive pretreatment agent on the surface of the pattern area of ​​the wrapped leather substitute wood mold with pattern that has been prepared in advance. The number of sprays is 3 times, the distance is 26cm from the surface of the pattern area, and the moving speed is 35mm / s. After the surface of the treatment agent is dry, apply silica gel profiling on the surface of the substitute wood model, pour addition-type silica gel into the profiling, and after curing for 8 hours at 25°C, separate the silica gel model from the skin-wrapped mold to obtain a fully cured model with patterns. Silicone replica mold.

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Abstract

The invention belongs to the technical field of manufacturing of slush molds for automotive trim products and discloses a method for manufacturing a silica gel reprinting model of an automotive instrument board slush mold. The method for manufacturing the silica gel reprinting model comprises the following steps that 1, a wood skin-wrapped model provided with automotive instrument board pattern skin is prepared; 2, an addition-cure pretreatment agent is sprayed to the surface of the pattern skin; 3, the pattern skin is placed under the indoor temperature condition till the surface with the addition-cure pretreatment agent is dried; 4, addition-cure silica gel is poured into a profile modeling mold after the profile modeling mold is additionally arranged above the wood skin-wrapped model; and 5, after the addition-cure silica gel is cured, the addition-cure silica gel is separated from the wood skin-wrapped model, and the silica gel reprinting model is obtained. The method is simple and low in cost, and the problem that curing of the addition-cure silica gel is affected by metal elements in the pattern skin can be effectively solved; the method has the advantages that the curing effect of the silica gel reprinting model is good, and the pattern lose rate is low.

Description

technical field [0001] The invention belongs to the technical field of manufacturing slush-molding molds for automobile interior decoration products, and in particular relates to a method for manufacturing a silicone reprint mold for slush-molding molds of automobile instrument panels. Background technique [0002] Automobile instrument panel slush molding molds are generally used to produce soft skin products for automobile instrument panels. The production process of slush molding molds includes the production of silicone replica models, the purpose of which is to accurately copy and transfer the patterns on the surface of the wrapped leather models. In the process of making the silicone replica model, since the patterned skin of the skin model contains Sn, As, Hg, Pb and other metal elements, these metal elements will cause the platinum catalyst in the two-component addition type silicone to have a "poisoning" effect The aging of the platinum catalyst will cause the conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38
CPCB29C33/3842
Inventor 姚卫国管东波窦艳丽石林
Owner JILIN UNIV
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