The process requirements for mirror stainless steel sculptures mainly include the following key steps and precautions:
Design phase: During the design phase of the sculpture, structural mechanics verification is required to ensure that the sculpture can withstand wind loads and seismic forces. For example, sculptures with a height of more than 5 meters must undergo wind tunnel simulation tests. In addition, the balance between the thickness and shape of the material must be considered during design. Stainless steel plates with a thickness of 2-8mm are commonly used, and complex curved surfaces require segmented forging processes.
Material selection and pretreatment: Common materials for mirror stainless steel sculptures include 304 and 316 stainless steel. 304 stainless steel has good corrosion resistance, heat resistance and low-temperature strength, and is suitable for general outdoor environments; while 316 stainless steel has stronger corrosion resistance due to the addition of molybdenum elements, and is suitable for coastal and industrial pollution areas. In terms of surface treatment, the mirror effect needs to be polished step by step (#600-#1500 mesh) and electrolytic polishing to eliminate the stress layer to achieve a high-gloss mirror effect.
Processing technology:
CNC cutting: The tolerance of laser cutting should be controlled within ±0.1mm/m, and 1-2mm processing allowance should be left for plasma cutting. 3D scanning reverse modeling is used for curved surface splicing, and the misalignment of the joint does not exceed 10% of the plate thickness.
Welding deformation control: The segmented desoldering method, rigid fixation and reverse deformation method are used to control welding deformation. After welding, penetration testing, ultrasonic flaw detection and X-ray testing are required.
Surface quality control: Blue dot test is required after pickling and passivation to ensure the integrity of the passivation film.
Surface treatment: The mirror effect needs to be achieved through mechanical polishing and electrolytic polishing. Mechanical polishing is performed step by step from 80# to 3000# grinding wheels, and the mirror effect must reach Ra0.05μm or less. Electrolytic polishing eliminates mechanical processing traces through customized electrolyte formula
Installation and maintenance: Embedded parts construction and segmented hoisting are required during installation, and stress relief and dynamic leveling are required after installation. In terms of maintenance, regular inspections are required for weld penetration, structural stability and surface scratches.
