On the production process and principle of special attack stainless steel decorative color plate
Stainless steel decorative color plate refers to the use of arc discharge in a vacuum environment, using the cathode titanium target as the evaporation source, through the arc discharge between the titanium target and the anode body, the titanium target material evaporates and forms ions, resulting in The ions move up the product at high speed and deposit on the surface of the product to form a titanium film.
How is the color of the stainless steel decorative color plate made?
In the high vacuum and high temperature titanium plating environment, adding different gases can plate different colors. If N2 is added, the plated color will be gold; if C2H2 is added, the color will be black; if O2 is added, the color will be colored and blue; if N2 and C2H2 are added, the color will be rose gold. In the titanium plating process, the materials used are titanium and high-purity gas, both of which are green and environmentally friendly materials. Since they are produced in a high-temperature vacuum environment, no harmful substances will be produced, so the plated products are very safe and environmentally friendly. Can pass various safety tests.
How can a strong titanium film be plated?
In order to plate a solid titanium layer, you must first have good equipment. Because in the coating process, the vacuum system must work stably, and the furnace body should be kept at a good pressure. If there are impurities mixed in the coating process, the color will be unsatisfactory, and the titanium will be removed in serious cases. Good equipment has high arc source ionization rate, high ion density, few large particles, high smoothness of the plated film, small friction coefficient, firmness and does not fall off, poor equipment has low ionization rate, and the plated film has a high ionization rate. Rough and dull, easy to scratch and fall off.
Titanium plating will not cause the product to rust
Titanium is a kind of anti-corrosion metal. At room temperature, titanium can lie on various In the solution of strong acid and strong alkali, even the most ferocious acid-aqua regia (aqua regia: a three-to-one ratio of concentrated nitric acid and concentrated hydrochloric acid can dissolve gold) cannot corrode it, so people use titanium to make it. submarine.
So the rust spots on the product after titanium plating are not the rust of the titanium film, but the rust spots produced by the substrate of the product itself.
On the product before titanium plating, if the product itself has oxides (or sand holes, pores), then the point of the oxide (or sand holes, pores) after titanium plating, Called the soft spot, it is not strong enough with the substrate itself. After a period of time, the titanium layer at that point of the substrate oxide is easy to fall off, so rust and titanium plating layer fall off.
When general sanding products are polished, the friction coefficient is large, and oxides are easily generated on the surface of the product.
The reason why titanium-plated knives have rust spots is that under the vacuum conditions of the titanium-plating process, the impurities in the sand holes and pores of the product substrate are cleaned up, and there are sand holes on the surface of the product. The place with the air hole forms a concave shape, and it is impossible to completely fill the sand hole and air hole after titanium plating. After the tool is used, the water remaining in the sand hole and air hole is not cleaned up, so that the sand hole and air hole are easily oxidized. Rust spots are produced.
Our usual household kitchen knives, when used every day, do not see rust, but if they are not used for a period of time, they will rust when exposed to the air. In fact, the oxides produced by knives used every day are similar to those produced by knives that have been left for a period of time. The reason why knives used every day do not see rust spots is because we use them every day
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