[China Aluminum Industry Network] The anodizing of aluminum alloys is relatively large and can be applied in daily life. It is believed that the characteristics of this process will create a hard protective layer on the surface of aluminum parts and can be used for the production of daily necessities such as kitchen utensils. However, the anodizing effect of cast aluminum is not good, the surface is not good, it can only be black. Aluminum alloy profiles are better, the following is a brief introduction to aluminum oxide oxidation methods.
In the past ten years, the technology of aluminum oxide coloring in China has developed rapidly. Many factories have adopted new process technologies and have accumulated rich experience in actual production. There are many anodizing processes for aluminum and its alloys that are already mature and are being developed, and the appropriate process can be selected from the actual production needs.
Prior to the selection of the oxidation process, knowledge of the aluminum or aluminum alloy materials should be understood. Because the quality of the material, the difference in ingredients, will directly affect the quality of the anodized aluminum products. On this point, Comrades Hong Jiude and Fan Ji have already discussed it in detail (see “Plating and Finishing,†2nd Issue, 1982, p. 27).
For example, if there are defects such as air bubbles, scratches, peeling, and roughness on the surface of aluminum, all rickets will still appear after anodization. The alloy composition also has a direct effect on the appearance of the anodized surface.
For example, an aluminum alloy containing 1 to 2% of manganese is brownish blue after oxidation. With the increase in the amount of manganese contained in the aluminum, the surface color after oxidation changes from brown to dark brown.
0.6-1.5% of aluminum alloys containing silicon are gray after oxidation, and white-gray when they contain 3 to 6% of silicon.
Zinc is milky, chromium-containing non-uniform shades from golden to grey, and nickel-containing yellowish.
In general, only aluminum containing magnesium and titanium content greater than 5% contains gold, which can be oxidized to give a colorless, transparent, shiny, smooth appearance.
After selecting the aluminum and aluminum alloy materials, it is naturally necessary to consider selecting an appropriate anodizing process. At present, sulfuric acid oxidation, oxalic acid oxidation, and chromic acid oxidation, which are widely used in China, have been introduced in detail in manuals and books, and need not be repeated.
PPF (luminous flux density) is an indicator used to measure the light energy output of plant lamps, indicating the flow of light energy through a unit area in a unit time. The higher the PPF, the following effects on plant lights:
1. Provide more adequate light energy: high PPF means that plant lamps can output more light energy, which is very important for plant photosynthesis. Photosynthesis is a key process for plant nutrient synthesis and growth, and high PPF can provide more adequate light energy and promote the efficiency of plant photosynthesis, thus promoting plant growth and development.
2. Promote the photosynthesis efficiency of plants: plant lamps with high PPF can provide more intense light, so that the chlorophyll on the leaves of the plants can absorb light energy more fully, thus improving the efficiency of photosynthesis. The improvement of photosynthesis efficiency can increase the nutrient synthesis capacity of plants and promote the growth and development of plants.
3. Increase the yield and quality of plants: high-PPF plant lamps can provide more intense light and promote the growth rate and yield of plants. In agricultural production, the use of high-PPF plant lamps can increase the yield of crops, and the quality of crops may also be improved due to the increase in light intensity.
for indoor led grow light full spectrum,led grow light small,led grow light from china blue red grow light bar
Shenzhen Pvison Technology Co., Ltd. , https://www.pvisunggrowlight.com