我厂生产的新产品,用途特殊,质量要求高。根据产品的技术要求,我们按照一机部通用机械研究所制订的“对铬镍奥氏体不锈耐酸钢晶间腐蚀操作规则”中的快速硫酸铜法(B法)、硝酸法(E法)进行了试验,现就操作中的实际体会作些介绍,仅供参考。试样制造腐蚀试验所用的试块,因材料形状的不同,制造方法也不同,一般可以从验收交货试验的焊接检查板上切取,或从尺寸大于250×160毫米的专用试样上切取。试样按图1以机械加工切取,其长度与宽度为80×20毫米,厚度一般按照钢板试样厚度决定,当钢板厚度≤10毫米时,取两个试样,厚度为钢板厚度减 I plant the production of new products, special purpose, high quality requirements. According to the technical requirements of the product, we follow the method of fast copper sulfate method (B method) and nitric acid method (“Method of Operation”) of “Intergranular corrosion-resistant rules for chrome-nickel austenitic stainless steel” E method) conducted a test, the operation of the actual experience is to make some introduction, for reference purposes only. The test pieces used in the corrosion test of the sample preparation may be cut from the welding inspection board which accepts the delivery test or from the special test sample whose size is larger than 250 × 160 mm due to different shapes and manufacturing methods. The sample is machined according to Fig. 1, its length and width are 80 × 20 mm. The thickness is generally determined according to the thickness of the steel sample. When the thickness of the steel is less than or equal to 10 mm, two samples are taken, and the thickness is the thickness of the steel