Medical titanium rod What are the precautions for alkaline washing of?

The medical titanium rod is easy to catch fire after alkaline washing, especially the titanium sheet. The chemical activity of medical titanium rod in alkaline solution, when alkaline washing in alkaline solution containing oxidant, the overall temperature of alkaline solution is too high or the local temperature is too high, which is the cause of titanium burning. The research shows that due to the potential difference between titanium and steel tools in the alkaline solution, there is a galvanic effect. When titanium and steel contact, a galvanic current is formed. The smaller the contact point, the greater the current. The excessive current density at the contact point causes local overheating, making medical titanium rods often start burning from the contact point of these two metals.

In order to prevent and reduce the fire of medical titanium rod during alkaline washing, the following measures can be taken:

1. Select qualified alkali cleaning solution components;

2. Strictly control the temperature of alkali liquor;

3. High temperature resistant coating or high temperature resistant insulating gasket shall be used to insulate alkali washed frame. If stainless steel alkaline washing frame is used, ceramic strips or ceramic pieces can be padded to separate titanium material from steel frame, so as to avoid fire.

In the process of alkaline washing of medical titanium rod, the alkali liquor is constantly taken away or evaporated by the workpiece, so it is necessary to supplement the alkali liquor and make timely adjustment to keep the alkali liquor composition relatively stable. During alkaline cleaning, insoluble oxide scale slag precipitates at the bottom of the tank, which affects the good thermal conductivity of the tank. Due to the gap caused by precipitation, the steel tank is prone to electrochemical corrosion, which greatly shortens its service life. Therefore, the sediment shall be cleaned in time. It is a common method to collect slag at the bottom of a movable tank. When it is necessary to eliminate sediment, simply lift the bottom of the movable trough away.

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