PVD vacuum coating industry chain
PVD film endows the product with metal texture and rich color, and improves wear resistance, corrosion resistance and life extension. Has been widely used in watchcase, watchband, mobile phone case, building hardware, mold tools and other products. Starting from the basic definition, classification, process characteristics, effects, process flow and material equipment manufacturers of PVD, we will provide you with a comprehensive understanding of PVD industrial chain.
1. What is PVD vacuum coating
2.Effect of PVD
3.PVD process flow
What is PVD vacuum coating
PVD is short for Physical VaporDeposition. It is a process of depositing metal or non-metal materials such as titanium, gold, graphite and crystal into the substrate to form films of different colors and textures by sputtering, evaporation or ion deposition in vacuum. PVD film endows the product with metal texture and rich color, and improves wear resistance, corrosion resistance and life extension. Has been widely used in watchcase, watchband, mobile phone case, building hardware, mold tools and other products.
Sapphire blue watch PVD effect
Under the vacuum condition, the arc discharge technology with low voltage and large current is adopted to make the target material evaporate and ionize both the evaporated substance and the gas by using the gas discharge, and make the evaporated substance and its reaction products deposit on the workpiece by using the acceleration effect of the electric field.
Schematic diagram of magnetron sputtering PVD coating
PVD coating classification
PVD vacuum coating can be divided into decorative film layer and hard film layer according to the application of film layer:
Decorative film can improve the appearance of the workpiece decorative properties and color at the same time make the workpiece more wear resistance and corrosion resistance; The hard film layer is used to improve the surface hardness and wear resistance of the workpiece, reduce the friction coefficient of the surface, and improve the service life of the workpiece. There are a variety of coatings, including pure gold-plated coatings, TiN, TiC, TiCN, ZrN, CrN, MoS2, TiAlN, TiAlCN, tin-aln, CNx, DLC and ta-c, etc.
What are the advantages of PVD?
1.Strong metallic texture, gorgeous color effect;
2.Can be applied to a variety of workpiece surfaces
3.The film has high strength, good compactness, strong corrosion resistance and even film thickness.
4.Ultra-high hardness, applied to the surface of tools, mold to enhance its hardness and tolerance;
5.No pollution to the environment, no harm to the operator, green environmental protection process.
Effect of PVD
Xiaomi m4 phone frame
Luxury gold watchband
Super hard film DLC watch
· Biomedical technology
PVD process flow
PVD pre-treatment Cleaning
✦ cleaning steps
Deoiling - decontamination - running water flushing - deionized water flushing - dehydration
After passing the cleaning line, hang the workpiece on the PVD fixture and put it in the oven to dry
The product into the furnace - vacuum - ion cleaning - coating - cooling out
Note: after each batch of products, the target shall be washed, and impurities deposited on the target shall be cleaned by plasma bombardment.
Products treated with PVD can also be polished, AF coating and other post-treatments to enhance the apparent properties and appearance of products.
AFcoating treatment for LG V10 cell phone bezels after PVD
PVD coating equipment supplier