一、概述18——8型不锈钢(1Crl8Ni9Ti)是目前波纹管广泛采用的材料之一。由于这种材料的冷加工硬化和经固溶热处理后的高塑性,使热处理成为不锈钢波纹管制作过程中重要的工序。热处理质量的好坏不但直接影响波纹管的性能,而且还影响其成本和生产率。譬如,从热处理后的表面质量来说,如果氧化程度严重, First, an overview 18 - 8 type stainless steel (1Crl8Ni9Ti) is one of the widely used materials bellows. Due to cold work hardening of this material and high plasticity after solution heat treatment, heat treatment becomes an important process in the production of stainless steel bellows. The quality of heat treatment will not only directly affect the performance of the bellows, but also affect the cost and productivity. For example, from the surface quality after heat treatment, if the degree of oxidation is serious,