摘要:不锈钢具有优良的耐蚀性、耐磨性、可塑性,因此,不锈钢制品被广泛应用于化工、纺织、食品机械、仪器仪表、厨房炊具、医疗器械等。但不锈钢制品在机械加工时往往会形成一层灰黑色的氧化皮,不仅影响其表面质量,更严重影响其耐蚀性能。因此,不锈钢制品的表面处理就显得尤为重要,对其表面进行化学抛光可大大提高其耐蚀性能和装饰效果。不锈钢化学抛光的不同工艺会产生不同的抛光效果,最终影响制品的品质。化学抛光是不锈钢常用的表面处理工艺,与电抛光工艺相比,其最大的优点是不需要直流电源和特殊夹具,可以抛光形状复杂的零件;生产效率很高。就功能性而言,化学抛光可除去不锈钢表面的机械损伤层和应力层。得到机械清洁度的表面,这有利于防止零件的局部腐蚀,提高机械强度,延长零件使用寿命。5247
论文主要是通过对已有的化学抛光方法及其数据的比较来对相应工艺方法作出初步的评价并提供一些相关法规及其办法。
关键词:不锈钢;化学抛光;工艺方法;工艺数据
The evaluation of Stainless Steel Chemical Polishing Process
Abastract: Stainless steel has good function of corrosion resistance, wear resistance and plasticity. Therefore, stainless steel products are widely used in the indestry such as chemical, textile, food machinery, instruments and meters, kitchen utensils, medical apparatus and instruments, etc.But when stainless steel products in machining tends to form a layer of film of ash black oxide skin, not only affect the surface quality, but also serious influence its corrosion resistant performance.Therefore, the surface of stainless steel products processing is particularly important, chemical polishing on the surface can greatly improve the corrosion resistance and decorative effect.Stainless steel chemical polishing process will produce different polishing effect and ultimately affect the quality of the products. Stainless steel chemical polishing is the commonly used surface treatment, compared with electrolytic polishing technology, its biggest advantage is not need dc power supply and special fixture, can polishing of complex shape parts; The production efficiency is very high. In terms of functionality, chemical polishing to remove mechanical damage and stress layer on the surface of the stainless steel. Get machinery and cleanliness of the surface, it is helpful to prevent parts of local corrosion, improve the mechanical strength, prolong the service life of parts.
The paper mainly through the comparison of existing chemical polishing method and its data to the corresponding process method to make a preliminary evaluation.
KeyWords: Stainless steel;chemical polishing;Process method;Process data
目录
1 绪论 1
2 化学抛光液抛光 2
2.1 硝酸型抛光液及非硝酸型抛光液 2
2.1.1 硝酸型抛光液 2
2.1.2 非硝酸型抛光液 5
3 粉体化学抛光液抛光 6
3.1 工艺说明 6
3.2 其他说明 6
3.3 小结 7
4 不锈钢化学抛光添加剂的选择 7
5 污染的防治 7
5.1 NOX的处理 7
5.2 酸雾的处理 7
5.3 铬酐的处理 7
5.4 小结 7
6 总结及展望 8
1 绪论
不锈钢化学抛光设备简单、投资少、效率高。随着不锈钢制品使用的增加,不锈钢化学抛光也成为人们关注的热点。[7]不锈钢品种繁多,不同种类的不锈钢具有不同的腐蚀规律,因而不同种类不锈钢的化学抛光不能采用同一种抛光工艺。不锈钢的高耐蚀性特点决定了不锈钢化学抛光液必然有浸蚀性很强的活性介质,其抛光液的基本组成包括腐蚀剂、氧化剂、添加剂和水。腐蚀剂是主要成分,如果不锈钢在溶液中不能溶解,抛光便不能进行;氧化剂和添加剂可抑制腐蚀过程,使反应朝有利于抛光的方向进行;水对溶液的浓度起调节作用,便于反应产物的扩散。本实验就是研究以硫酸为主的不锈钢化学抛光工艺。不锈钢具有优良的耐蚀性、耐磨性、可塑性,因此,不锈钢制品被广泛应用于化工、纺织、食品机械、仪器仪表、厨房炊具、医疗器械等。由于不锈钢制品在机械加工时往往会形成一层灰黑色的氧化皮,不仅影响其表面质量,更严重影响其耐蚀性能。随着 不锈钢化学抛光工艺评价+文献综述:http://www.youerw.com/huaxue/lunwen_2207.html