Three kinds of calculation methods of rubber tube sizing material shrinkage

Published：2014/12/18 11:52:06 | Sources of information：http://m.baozhi.net.cn
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Three kinds of calculation methods of rubber tube sizing material shrinkage is mainly in accordance with the actual situation to calculate, mainly rubber and die cavity corresponding to the size; Shore Hardness Calculation of rubber materialshrinkage; vulcanization temperature calculation in rubber material shrinkagerate. Below small make up specific share it.

The calculation formula of A. rubber and die cavity corresponding size:

C= (L2 L1) / L1 X 100%

C rubber material shrinkage rate:

L1 room temperature measured by the size of rubber products;

L2 room temperature measurement of the mold cavity size.

B. to shore hardness empirical formula to calculate the material shrinkage ofrubber:

C= (2.8---0.02K) X 100%

K rubber hardness.

The general formula of shrinkage rate of C. in vulcanization temperaturecalculation of rubber material:

C= (alpha and beta) Delta T? R X 100%

Linear expansion coefficient alpha rubber;

Beta - mould material coefficient of linear thermal expansion,

Delta T - curing temperature and measurement temperature difference,

R rubber, sulfur, organic complexing agent in rubber volume percentage (%).

This article from the Shenzhen City Qiyu Silicone Rubber Co., Ltd.: http://m.baozhi.net.cn/news_v.asp? Id=196

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