The serious consequences of in possession of this bronze

 From the point of view of an exemplary relationship, if it is cast into sharp angles of the objects, and its range can only become more acute external angle, from the molding and manufacturing range of angle of view, are unlikely to achieve. In this way, Da Yu Ding, the precious bronze came all the way to Beijing from Shaanxi. The first mold is not easily made into the mold of the bronze sword grid and from sharp angles to produce sharp angles, turn Fan mud can not be sharp angles everywhere, filling real, and the ejection mud range can easily be folder out or stick out sharp parts. Fan casting logic point of view in Figure 11 the right side of the narrow cell bronze sword from the Ministry of the middle, there is a smaller and raised ridge edge from the grid angles through Feng Ministry, on both sides of the ridge edges are processed state, and the grinding very smooth.
 Its operation is relatively simple, and will be cleaning the economic spray was suspected to be cast received at the grid with bronze blade junction of the angles, the Department clean, dry, spray a layer of infiltration economic, was sprayed at the turn purple, ten minutes after the spray cleaning of economic surface visible purple infiltration economy as clean as possible, and then after drying spray imaging economy at the spray immediately into a layer of white; after a few minutes, where there are casting defects and cracks at surface has been cleaned, coated imaging economy will be apparent to violet color. He had no choice but to endure pains silently to give away the bronze to Zhou magistrate. Strong penetration of penetration of economic performance than kerosene, even if the eyes can not see the gap to penetration the economic Jieneng penetrate in the end.
Previously has referred to this phenomenon, regardless of the horizontal and vertical can be processed into this state without leaving the machining marks in the grid of the facade. Loss of the bronze, Song was like suffering a big humiliation and grand his teeth swearing he would have it back.  Thus, while the bronze sword did not measure out of line from the gap, but exemplary relations and the range of cast logical point of view can be that this bronze sword is still possible to cast the cells to process. The gap could not be determined, should be due to the higher copper liquid temperature in the cast then. Figure 12 Yue Gou bronze sword unearthed stem map, the red arrow at the Hubei Hope Mountain Tomb, a rectangular rivets, turn 180 degrees the other side can also see the rivets, rivets below to see to around the stem week after marks.
Penetrant inspection technology is a mature technology, is often used in the detection of surface cracks in pressure vessels. Dangerous goods pressure vessels are directly involved in the lives of users, their manufacturing quality checks at each level by the quality inspection departments at all levels, the penetration flaw detection is a lifelong responsibility system, and the pressure vessel manufacturer. You are sensible, so you should be aware of the serious consequences of in possession of this bronze. Detection of the quality of its diameter, using X-ray detection, surface penetrant inspection techniques. This is a non-destructive testing technology, the test piece does not cause damage. February 13, 2007, the above-mentioned non-destructive penetrant testing techniques were tested on eight different shapes in different sizes Warring States bronze sword, test results, including six bronze sword particularly the Ministry of the cast then.