The Definitive Guide to in tem nổi
The Definitive Guide to in tem nổi
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During transmission, the speed of electrons right correlates to electron wavelength; the quicker electrons transfer, the shorter wavelength as well as better the standard and detail on the image.
Việc lựa chọn loại decal để in tem dán rất quan trọng. Đối với các dòng sản phẩm được bảo quản trong môi trường như tủ lạnh, hay trong môi trường nước thì lựa chọn các dòng decal giấy loại tốt, có phủ màng nilon hoặc dùng decal nhựa PVC.
+ Giá rất rẻ cho những loại giấy decal vỡ có chất lượng trung bình khoảng twenty-30K/1m
Bên cạnh decal giấy thì decal nhựa cũng là một chất liệu được sử dụng để in tem dán hộp nhựa phổ biến. Có two loại decal nhựa là decal nhựa trong và decal nhựa trắng sữa.
Điều này đặc biệt hữu ích khi bạn cần điều chỉnh thông tin sản phẩm hoặc khi sản phẩm được nhập khẩu với bao bì đã in sẵn thông tin.
Ethanol and acetone are classified as the frequently made use of solvents in this method. Dehydration is vital because the epoxy resin used in even further ways isn't going to mix with drinking water.
Tem decal 7 mầu thường được ứng dụng làm tem chống hàng giả trên các sản phẩm như:
The illumination supply (or electron gun) inside a thermo-ionic emission TEM will work much like a light-weight bulb. A filament (cathode) is the supply of electrons. It is usually a hairpin-shaped tungsten wire. An accelerating voltage (fastened amount of destructive superior voltage) is placed on the encompassing cathode cap. A small emission present-day is then applied to the filament to accomplish the release of electrons. The point at which the gun achieves very good thermal emission along with a suitable filament life is known as the saturation place.
To do away with electron beam interactions with something but the specimen, a higher vacuum method is connected to the column [two]. Normal TEMs will hire 3 kinds of vacuum pumps:
The transmitted electrons are then magnified by goal lenses and projected on to a detector, leading to an image that reveals the internal composition on the sample.
Slicing: For study underneath an electron microscope, the sample needs to be semi-clear to allow the passage of electron beams by it.
The trail and trajectory taken through the electrons are affected from the lens recent because they go however a small opening in the lens.
This hybrid method presents unprecedented adaptability, making it possible for scientists to modify effortlessly amongst SEM's specific surface imaging and TEM's substantial-resolution exploration of internal constructions – all inside a solitary process.
Accelerating Voltage Is the electric area potential placed on more info the electron gun to accelerate the electron beam with the microscope column and eventually the sample. Larger accelerating voltages correspond to lesser electron wavelengths and improved resolution.