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Measurement method of hardness of rubber

A measurement method and hardness technology, applied in the field of rubber tire manufacturing, can solve problems affecting product quality and life, real-time monitoring of quality, economic losses of enterprises and product users, etc., and achieve the effect of improving quality, high precision, and reducing potential safety hazards

Inactive Publication Date: 2012-07-25
TIANJIN UNIV
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Problems solved by technology

Since the rubber production process is a typical intermittent process, usually only one model establishment cannot complete the real-time monitoring of the quality of the entire production process, which seriously affects the quality of rubber products in the factory, and ultimately affects the quality and life of the product
Moreover, rubber products may have potential safety hazards, causing economic losses to enterprises and product users.

Method used

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  • Measurement method of hardness of rubber
  • Measurement method of hardness of rubber
  • Measurement method of hardness of rubber

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] In order to improve production efficiency and product quality, and realize online automatic measurement, an embodiment of the present invention provides a method for measuring rubber hardness, see figure 1 , See the description below for details:

[0028] The quality index and rheological parameters of rubber (mainly including the minimum torque ML, the maximum torque MH and the vulcanization time parameters TC30, TC60 and TC90) are the parameters that must be measured after the end of the mixing of each vehicle. Each measurement only needs 2 to 5 Minutes, quick and easy detection. Considering the similarity of the working principle of Shore hardness tester and rheometer, and the strong correlation between rheological parameters and hard...

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Abstract

The invention discloses a measurement method of the hardness of rubber, comprising the following steps of: when the quantity of a new sample Xnew for updating a model reaches to a threshold value T, updating an online hardness predication model f: x->y by one time; when the hardness does not reach to the threshold value T, not updating until the threshold value T is reached; and after the updated online hardness predication model is obtained, predicating a rubber hardness value corresponding to the new sample of the next train number by the updated online hardness predication model to obtain a difference value between the rubber hardness value and a actually-measured rubber hardness value, so as to obtain an error. According to the method disclosed by the invention, the online hardness predication model is continuously updated so that the accurate rubber hardness value is obtained and the quality of the rubber is improved; and an actual test verifies that relatively high precision can be obtained by using the method and the potential safety hazard is reduced.

Description

Technical field [0001] The invention relates to the field of rubber tire manufacturing, in particular to a method for measuring rubber hardness. Background technique [0002] In recent years, with the increasing demand for rubber in production and life, the rubber industry has developed by leaps and bounds. Coupled with the continuous development of China's automobile industry, it has played a huge role in promoting the rubber industry. Whether in production or life, more and more rubber products are used. The continuous emergence of new products and the continuous expansion of application fields have put forward newer and higher requirements for the production of rubber products. [0003] Rubber mixing is one of the most important processes in rubber production. Effective control of the rubber mixing process directly affects the quality of rubber products. Rubber mixing is a typical batch process with obvious time-varying characteristics and nonlinearity. Therefore, timely and ...

Claims

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Application Information

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IPC IPC(8): G01N33/44
Inventor 宋凯张春迎
Owner TIANJIN UNIV
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