1. Weld Disadvantages: relatively severe shortcomings weld, the selection of craft disposal methods to compensate for mechanical polishing, grinding marks occur, the formation of the appearance of uneven effect beautiful.
2, appearance is not common: only weld pickling and passivation, but also the appearance of uneven form, affect beautiful.
3, hard to get rid of scratches: all pickling passivation, nor can happen machining process in a variety of scratches removed, and can not be removed because of scratches, weld splatter and adhering to medical titanium outer carbon fixation steel, splash and other impurities, resulting in chemical corrosion and rust or electrochemical corrosion under the conditions of the existence of corrosive media.
4,surgical implant titanium polished passivation uneven: polished craft pickling passivation disposal polishing of the area larger parts, it is difficult to reach even the role of co-disposal, not too ambitious even appearance. And work costs, materials costs are also higher.
5, pickling limited to: pickling and passivation paste is not omnipotent, plasma cutting, flame cutting and productivity and black oxide, is more difficult to get rid of.
6, scratched more severe form of the elements: the lifting, transporting and processing the layout process, scratches bump, persistent, hammering and other man-made elements of the more severe form, so look disposal difficult and also a corrosion occurred after treatment The primary reason.
7, the device elements: the profiles, sheet roll bending, bending process, the formation of scratches and creases also the main reason for the occurrence of corrosion after treatment.
8,titanium alloy plate Other elements: Medical fixation titanium raw material acquisition, storage process, because lifting, bump and scratch transport processes occur relatively severe, also One reason for the occurrence of corrosion.
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