Industrial Classification System-ray photographs HB / Z60-1996 ISO5779: 1998 X-ray camera inspection and X-ray non-destructive testing of metal materials, the basic principles and Y-ray examination Radiographic examination E94-04 Appendix C Guidelines for steel castings for this mark of quality and acceptance of the main provisions are as follows 1, casting defects is divided into: porosity; sand and mixed; shrinkage shrinkage; within the cold core of iron and clay are not without harmony harmony; hot cracks and cold cracks, Category 5. 2, the defect size by negative effects on the size of the defect determination. 3, there is harmony within and without the cold iron core or the presence of mud cracks and cold cracks were defects, because of the quality assessment of six. Intelligent management system product of cell phone jammer manufactured by the company would definitely be your best choice.
I deeply understand that our test with other professionals associated with the importance of expertise, but also deeply aware of the lack of radiographic inspection, such as from the entire film camera and darkroom processing and film the process of assessment, we can see that this method of X-ray film consumption equipment such as high cost, slow speed test, it should only detect porosity, slag, shrinkage, porosity and other volume defects, but difficult to find small cracks and gaps such as lack of fusion defects, and forgings and tubes, rods and other profiles of the internal stratification of the defect. In addition, the harmful rays of the need to take appropriate protective measures.
This cell phone jammer factory owns advanced testing instrument. As for the casting open casting system, and the thin wall thickness at the ribs, for there is obviously dead and because of lower than carbon steel casting in the mold easily oxidized, oxide flow to the corner office , resulting in the formation of turbulence and the resulting impact mixed, if necessary, negotiate with parts designer, you can remove the structure, or in the corners at Zhaming vent, to divert and prevent suffocation resulting from turbulence, and the other way primarily from a mixture of the main reasons is an oxide into the mold, the second oxidation of the more serious, for once we can consider casting oxide is added with filters, for the second oxide, we can take in the surface layer coating adding reductant decreased secondary oxidation, thereby reducing the oxide inclusions through this graduation.
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