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自应力管的生产,在我国虽然已有20多年的历史,但作为产品质量的主要影响因素——膨胀破坏和纵向裂纹仍难以避免。特别是硅酸盐自应力管的生产,由于其生产工艺不易控制,上述问题就显得更为突出。硅酸盐自应力水泥,由于其原料广,价格便宜,膨胀稳定期短而在自应力管生产中仍被普遍应用。因此,如何保证硅酸盐自应力水泥质量,从而达到自应力管的优质高产,也就成为每个硅酸盐自应力管生产企业所关注的一个普遍问题。近年来,结合全面质量管理活动,我们对历年来我厂自应力管生产过程的检验测试
Although the production of self-stressed pipes has a history of more than 20 years in China, as the main influencing factors of product quality, expansion damage and longitudinal cracks are still difficult to avoid. In particular, the production of silicate self-stress pipes is more prominent because the production process is not easy to control. Silicate self-stressing cement is widely used in the production of self-stressed pipes due to its wide range of raw materials, low cost, and short expansion and stabilization period. Therefore, how to ensure the quality of silicate self-stressed cement and thus achieve high quality and high production of self-stressing pipes has become a common concern for each silicate self-stress pipe production enterprise. In recent years, combined with the comprehensive quality management activities, we have tested and tested the production process of the self-stress pipe in our factory over the years.