Stainless steel etching solution and etching method

Abstract

The invention provides stainless steel etching solution. The etching solution comprises the following components: 200 to 350 g/L of ferric trichloride, 0.45 to 1.16 mol/L of hydrochloric acid, 20 to 60 g/L of nitric acid, and 40 to 100 g/L of caprolactam. The invention also provides a stainless steel etching method. The method comprises the following steps of: making a stainless steel base material in contact with etching solution, etching, and controlling the temperature of the etching solution to be between 15 and 40 DEG C, wherein the etching solution is the etching solution of the invention. The etching solution can enhance lateral erosion, so that the edge is smooth, the etched edge slope is smooth, and natural transition of the etched surface and the surface of the original stainless steel base material is realized; and the etching solution is effectively applied to etching of natural textures such as skin textures, wood textures, sand surface textures, silk textures, relief andthe like, so that the simulated natural textures have vivid effect.

Description

technical field [0001] The invention relates to the technical field of metal surface etching processing, in particular to a stainless steel etching solution etching method. Background technique [0002] In the field of metal surface decoration, the metal chemical etching process is usually used to produce graphics with regular outlines, such as logos or some vector patterns, which need to avoid the influence of side etching, and obtain clear edges, flat etching surfaces, and small etching slopes Etching effect, the chemical etching solution developed for it generally has the above characteristics. With the development of surface decoration technology, more and more people like to make simulated natural textures on the metal surface, such as leather grain, wood grain, sand surface texture, satin grain and relief. However, the use of traditional chemical etching solution, because the etching surface and the surface of the substrate cannot be blended naturally, the natural pat...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing stainless steel etchant has less side erosion, the transition between the etched surface and the stainless steel surface is relatively rigid, not natural enough, lacks natural aesthetic feeling, and cannot realize the decorative