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 Wysłany: Nie 1:59, 16 Sty 2011 Temat postu: ugg italia X-ray mapping the internal structure of |
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X-ray mapping the internal structure of components, sizes, choice of process parameters
FPABAMETERSF0RX_] RAYISPECTIo0FITERALSTRUCTUREANDSIZEoFPARTSDingZhlchong (Nanjin ~ AeronautlcalAcceaoryFactory) x-ray inspection with its intuitive, the film can be archived, etc.,[link widoczny dla zalogowanych], in the absence of components in Figure 2 shows the internal structure is not clear at all levels,[link widoczny dla zalogowanych], the loss of prospective examination plays a very important position. I think this is known to the; but participate in the specification deposited as follows: tube voltage 7okv, exposure set Toru mA. m'm, developing it for mapping the internal structure of components, but less is known to be resistant or inter-4min rejection, and some even application of this technology. Is not very easy to get a clear film. I plant to undertake the past few years a lot of electronic, optical element of the mapping mission control mussels, gradually explored a viable alternative to radiographic parameter mapping method. We know that in x-ray detection of the need to improve sensitivity, and x. Chaman is three types of limonene pad to E Tam repeated interest,[link widoczny dla zalogowanych], in order to clearly show a film on the internal structure of Bei two components, we must improve the tolerance Cave. Tube voltage is a way to improve significantly, and the corresponding need to reduce the exposure or development time to reduce the degree of cavity linings to control the black level (black level maximum fine not exceeding 2.5, so you can observe from the incandescent lamp film,[link widoczny dla zalogowanych], Analysis of the internal structure of ELEMENTS Zan) by experiment, the reduction of exposure has little effect on the tolerance, and reduction of development time (up to 0.5 ~ 2mi arsenic. you can greatly improve customer degrees wide. x-ray for dollars mapping the internal structure of the device is required to improve tolerance and not be unlimited, but the improvement must also give due consideration to the sensitivity requirements. by an attack of practical experience, we conclude that the internal structure to get a clear image through the photo, you can choose the following Process parameters: f Di exposure significantly reduced (about 5 ~ 10 times), an appropriate increase in tube voltage (maximum thickness than testing some parts of the tube voltage rejection High 20-50kv), and select the appropriate development time (about 0,5 ~ 2min), In addition, to further improve film clarity, we generally use a small focus x-ray machine, lead foil by a sense of particle films for low-speed cavity through the photos. After the soil is worth mentioning that the aforesaid parameters selection method is to use the West MG16820X-ray machine, Tianjin and other appropriate V-limb films obtained according to conditions. funerary pictures instruments, equipment, and through the black component is not the same, increase the value of tube voltage, exposure rate and reduce the development time believe that the people choose there are changes in the ray detection and artists will be in their practice further inspired to get the internal structure clearly show the components of x-ray photographs in Figure 1 can show the internal structure at all levels, the parameter specification t operation voltage is 100kV,[link widoczny dla zalogowanych], exposure 15mA · min, developing when you hear lmin ~ · 110 Figure l loop 2
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