Dry type transformer epoxy casting process and curing process
2023-08-20 12:12:12
Pouring process and curing process knowledge The temperature of the casting process casting tank is recommended to be 70-80 °C. The pretreated castable was injected under vacuum into a mold preheated to 70-90 °C. In order to avoid air bubbles due to the vapor pressure of the components, the vacuum pressure of the pouring tank during casting is recommended to be set to 5-10 mbar. The curing process casting passes through the gel and then solidifies, ultimately forming a casting that is dimensionally stable and achieves the desired mechanical strength. If there is no significant change by continuing to extend the curing time, such as an improvement in mechanical properties or an increase in the glass transition temperature, it indicates that the curing process has ended. In order to achieve the maximum possible crosslink density of the system, a minimum cure temperature and a minimum cure time are required. For 8230A/B, the minimum cure temperature is 80 ° C / 8 hours + 100 ° C / 2 hours + 130 ° C / 8 hours. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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