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Method for simulating vulcanization of all-steel radial tire

A technology of radial tires and vulcanization degree, which is applied to tires, other household appliances, household appliances, etc., can solve the problem of rapid grid division method that does not involve changes in thermal conductivity, specific heat capacity and density of rubber-steel composite materials, and does not involve tire vulcanization system and other problems to achieve the effect of improving the quality of tire products

Active Publication Date: 2011-10-19
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] However, none of the above-mentioned publications involves the description of the thermal conductivity, specific heat capacity, and density change of the rubber-steel wire composite material, and does not involve the rapid grid division method for the tire vulcanization system

Method used

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  • Method for simulating vulcanization of all-steel radial tire
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  • Method for simulating vulcanization of all-steel radial tire

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Embodiment Construction

[0017] Such as figure 1 As shown, the simulation state structure of the meridian plane of the tire vulcanization system 1 to be simulated includes a metal mold 2, a tire 3, a metal mold 4 and a water bag 5, and the tire 3 is located between the metal molds 2, 4 and the water bag 5. The tire 3 also includes a wear-resistant layer 6, a bead ring 7, a reinforcing layer 8, a pad rubber 9, an excessive rubber 10, a carcass layer 11, an inner liner 12, a sidewall 13, a shoulder pad rubber 14, a crown 15, a belt Bundle layer 16, crown base rubber 17, this is the known structure of tire 3. Among them, the reinforcement layer 8, the carcass layer 11 and the belt layer 16 are of rubber-steel wire composite material structure, the metal mold 2, metal mold 4, and steel traveler 7 are of metal structure, and the rest are of rubber material structure. During vulcanization, the high-pressure superheated water circulates in the water bag 5, and the water temperature of the superheated water ...

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Abstract

The invention discloses a method for simulating the vulcanization of an all-steel radial tire, comprising the following steps of: obtaining flow curves and thermal physical parameters of all kinds of rubbers in the tire and vulcanization torque-time change curves of crude rubbers in the tire and thermal physical parameters of a water bag to obtain a corresponding vulcanization degree-time change relationship curve, a vulcanization degree-vulcanization reaction speed change curve and induction times under three constant temperatures of 135 DEG C, 145 DEG C and 160 DEG C; then defining the thermal physical property and / or vulcanization dynamics characteristic of the material in each part of the tire, wherein the vulcanization dynamics characteristic of the rubber in the tire is defined by using a hybrid dynamics model; then rapidly dividing grids on the tire by using a grid dividing method; establishing a heat transfer-chemical reaction coupling equation for the vulcanization of the tire; carrying out numerical calculation on the coupling equation based on a Newton iteration method; and more accurately and efficiently simulating a heat transferring process and an interlinking process for the vulcanization of the tire via a computer and predicting the temperature and the vulcanization degree of each point in the tire.

Description

technical field [0001] The invention relates to a method for simulating the vulcanization process of an all-steel radial tire, which realizes the computer simulation of the vulcanization of the all-steel radial tire in a flat vulcanizer, and accurately predicts the temperature and vulcanization degree changes of each point inside the tire. Background technique [0002] The traditional tire vulcanization method is to measure the temperature of key parts inside the tire such as the shoulder, bead, and crown through a thermocouple, and then use a dynamic model to convert the temperature of each point into a vulcanization temperature to determine the necessary time for vulcanization. After each test, the tire must be cut open to find the position of the thermocouple. Therefore, this trial and error method is costly and time-consuming. Moreover, changes in formula design and vulcanization medium temperature will affect tire vulcanization characteristics, and it is difficult to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/08B29C35/02
Inventor 张建王国林唐文献安登峰王晓娟苏世杰王勇张鑫傅乃霁
Owner JIANGSU UNIV OF SCI & TECH
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