搪瓷管空气预热器价钱-锦丰锅炉-搪瓷管空气预热器

搪瓷管的使用性能受温度影响

搪瓷管经过高温焙烧、冷却后，搪瓷与钢板就粘结在了一起。由于搪瓷的线膨胀系数和延伸率小于钢板的特性，冷却后搪玻璃的变形量会小于钢板的变形量，而搪瓷受到钢板的约束就会产生压应力。也就是说搪瓷管制成后，搪玻璃会存在一种预压缩应力，而钢板则存在预拉伸应力。

enamel tube through the high temperature roasting， cooling， enamel&steel plate is bonded together. because the characteristics of enamel of the coefficient of linear expansion&extension rate is less than the plate， deformation after cooling glass lining will be less than the amount of deformation of steel，&steel plate enamel constrained will generate compressive stress. that is to say the enamel tube， glass lined there will be a pre compressive stress，&the steel plate are pre tensile stress.

由于预应力与线膨胀系数和延伸率相关，而线膨胀系数、延伸率又与温度密切相关，因此搪瓷管的工作温度对瓷管本身的使用会带来很大的影响。在这里需要注意温度的变化，如果温度变化大，搪瓷管空气预热器供应，很容易使搪瓷产生的应力超过使用应力，从而引起搪瓷的破坏，一旦搪瓷层遇到冷、热急变，极易发生爆瓷现象。

due to prestressing force&the coefficient of linear expansion&extension rate，&the coefficient of linear expansion， elongation&closely related with the temperature， so the enamel pipe working temperature on the porcelain tube itself use will have a great impact. here we need to pay attention to the change of temperature， if the temperature change is big， easy to cause the enamel of stress over the use of stress， so as to cause enamel damage， once the enamel layer encountered cold&hot blast，搪瓷管空气预热器价钱， prone to burst phenomenon of porcelain.