A new understanding of the cast bronze sword process has been confirmed

Red eight-square copper material off the crop, I do not know is not broken before the length of the stark color contrast with the light green from the Ministry. I wonder if the red copper material is cast insert or inlay in the range of the cast into the assumption is cast after the insert, eight square copper material one week there is no gap, it seems unlikely to insert; assume that belong embedded in the range of the cast into the, unless eight square copper material in the range of vacant four weeks, or eight square copper material outside the site without filling the thickness of the copper solution, and therefore is unlikely to inlay casting. Inscriptions on the bronze recorded the situation that the King of Zhou granted Yu spiced wine, dresses, chariots and slaves for the purpose of sacrifice.
In accordance with the conventional casting process, how to explain not pass, identify the purpose of this copper material into the cell, and how to insert the cell, but also for what is the relationship to identify the copper material and the grid, using X-ray this residue made flaw detection. From the X-ray film, to see the grid and from the entire cast, no cast traces of eight square copper material can only be inserted cell and stem the boundaries of the insertion depth is not obvious. The later generations call this bronze Yu Ding or Da Yu Ding in that it is Yu cast this ding. This is the large thickness of the middle of the decorated lattice, grid, and from the overlying relationship, X-ray can not shoot the gap, the film can not imaging. In this X-ray does not solve the difficult problems.
At this point, a new understanding of the cast bronze sword process has been confirmed. Grid is stepping down after growth in the ornamentation grid shiny purple similar to mica cuprous sulfide and ornamentation grid is no longer security less than the original location. Figure 9 above, the residual bronze sword by the heated gradually torn off and the grid map. As to be cast into bronze blade and stem of the grid within the long-closed, the end of the bronze blade in the box surface and the extra surface to generate a distinct color. Song Jijian hurried to ask the servants to move the bronze to his study and instructed the family to keep the secret, being quiet.  Due to the 2,000 years of burial, and generates a layer of light green paint ancient bronze blade surface exposed, to be cast into bronze blade and stem of the grid within the remained of the original cast layer, only a very slight red rust layer, resulting in not backspace mistaken for two different alloy, which is mistaken for the grid to insert eight square copper bar reason.