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Critical technology of steel vacuum coating Technology Articles | January 19 Solo gli utenti registrati possono vedere i link!
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, 2012
With the developments of vacuum technology and materials technology and the urgent requirement for developing new steels, steel vacuum coating is becoming an important technology in surface treatment.
It has good development prospects. At present, the electrical steel vacuum coating technology becomes mature and quickly realizes the industrialization of vacuum coating technology.
Practice has proved that steel vacuum electron beam coating has many advantages: (1) choice of zinc oxide material melting point without much restriction. High energy density electron beam can make the coating material in a very short time to reach 3000 ~ 6000 . Therefore, in addition to common galvanized hot dip galvanized, aluminum, tin Solo gli utenti registrati possono vedere i link!
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, almost all of the metal materials can be deposited, but also a wide variety of plated metal nitride film, metal oxide film and metal carbide and a variety of composite membrane. This strip material for the development of new offers great freedom. (2) Coating of high material utilization, environmental pollution. Vacuum coating is a dry coating, no harmful liquids, gases. (3) Steel coating has good quality. It access to uniform Solo gli utenti registrati possono vedere i link!
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, smooth and very thin coating, coating of high purity, corrosion resistance and adhesion. Strip coating by electron beam warm-up prior to surface activation, coating of high purity, and no intermediate brittle alloy layer can be a metal forming, and even rolled into a small tube rather than directly by the coating off. (4) process flexible Solo gli utenti registrati possono vedere i link!
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, easy to change varieties, according to product requirements to achieve a flexible steel plating on single-sided, double-sided, single layer, multilayer, plated two materials can reach plated mixed film. Coating thickness is easy to control Solo gli utenti registrati possono vedere i link!
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, and ultra-thin films can be coated.
However, the steel vacuum coating is still in early stages of development. The share of the strip surface is still far and hot-dip, plating compared. Hinder the development of vacuum coating strip is mainly due to low productivity, high cost. The most effective solution is developed high-speed, high power and stable evaporation source.
The development of high-power electron gun and vacuum coating with a strip of key technologies. General vacuum evaporation coating resistance heating can be used and induction heating. Its equipment is relatively simple, but the heating temperature and the evaporation rate are low. Industrial production to meet the continuous need for vacuum coating steel strip Solo gli utenti registrati possono vedere i link!
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, you must use heating speed, high melting temperature of the heat source.
Experiments prove that high-power electron gun is the ideal heat source in continuous vacuum coating process. This is because: Electron gun emitted after electron beam can be achieved by focusing a high energy density, bombardment crucible coating material, so the temperature can reach 3000 or more, than the high temperature arc. Electron beam energy conversion rate of 80% -90%, using the magnetic deflection system can be easily e-beam focusing and scanning Solo gli utenti registrati possono vedere i link!
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, uniform heating. Electron beam bombardment only the surface coating material, not because of the incorporation of other materials caused by mixed problems. Use of the electron gun beam diameter, electric power, plus beam voltage, scan path, frequency and other parameters are easy to implement regulation. Use an electron gun can also be coated in the production process of titanium dioxide steel-plated vacuum was warm Solo gli utenti registrati possono vedere i link!
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, clean and strip electron gun is used, to bombard the surface activation. Though the electron beam scanning, strip surface temperature is controlled at 200 ~ 550 . The preheating is necessary for the steel coating to improve the coating adhesion.
Source:http:www.mhcocm Article Tags: Steel Vacuum Coating, Steel Vacuum, Vacuum Coating, Electron Beam Solo gli utenti registrati possono vedere i link!
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, Coating Material
How To Get Relief From Sciatica And Reduce Nerve Pain Naturally? Health Articles | April 13, 2017
Sciatica and nerve pain can affect any individual at any point of time and if they frequently occur, then Orthoxil Plus capsules and oil can help.
Have you ever waked up feeling great pain starting right from your upper thighs and reaching your feet? Do you experience troublesome pain in the lower back that spreads downward and does not seem to go away whatever you do to get rid of the same? The pain you experience might be sciatic nerve pain and this is also referred to as sciatica. This is a condition that causes throbbing pain in the lower back and in the limbs. It is a pain that can spoil your entire day, such that you will start searching for 'how to get relief from sciatica' almost immediately.
What is sciatic nerve pain?
When some specific nerves pinches the lower spine running by the side of sciatic nerve, the intense pain can develop that runs through the entire legs. In general, this pain is repetitive and it is generally felt in one leg initially. Most people experiencing this pain explain it as highly intolerable. To reduce nerve pain Solo gli utenti registrati possono vedere i link!
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, patients can rely on the safe herbal remedy called as Orthoxil Plus capsules.
Why Orthoxil Plus capsules?
If you are concerned about 'how to get relief from sciatica', this can be the best remedy. The manufacturers of this herbal remedy claims that this product will soothe the symptoms associated with sciatic pain within 12 to 15 weeks of the use of this natural remedy. After usage for three to four months, you will find that the pain does not show its face again in your body. Here are some of the reasons why you should use these capsules to reduce nerve pain:
1. It will nour. Solo gli utenti registrati possono vedere i link!
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