Cemented carbide is a valuable tool material, due to its brittleness is big, easy to crack, when handling so want to put light. Collapsed area not exorbitant, avoid collisions, fall edge Angle, affect the use.

The brand and model of cemented carbide, if it was improperly secured, easily mixed together, in distinguish between carbide insert number of cases, the available method to identify as follows:

Firstly,with clear brand mark on the insert: can according to the brand mark on the insert area to stop.

Secondly,according to the color difference on the insert:if no brand mark on the insert,or are painted a variety of color,which can according to the color to distinguish.

Thirdly, mercury identification method: to see not clear brand mark,and no color mark insert, available mercury identification. Because the proportion of mercury is 13.6, the proportion of YG alloy in 14 or more commonly, the highest proportion of YT alloy but 13,so everything in mercury can sink is 1 G alloys. Float on the surface of mercury is not sinking is YT alloy.As for the different type of alloys, such as YT15, YT 5 how to distinguish, can use the known brand of alloy in mercury, according to its determination of the speed of sinking and floating to compare.YG alloy can also be based on what it float on the surface of the mercury to reveal part to measure.Y T30 the lightest, revealing the mercury surface parts is big, YT15 show less, YT least 5 dew in the above section. But this approach is not very accurate, more practice, to master.

Toxic mercury to identify,because mercury,the hand is not to be exposed to mercury, available perturbation clamping inserts were determined.Price of mercury is very expensive,to avoid falls, should be put in vessels containing mercury below a large tray.Larger alloy insert,had better be put vertical mercury inside,because the flat,because the relationship between the surface tension, sometimes even the YG alloy can not sink.To identify accurate,available stick first pressed the insert to the mercury, to see if it can float.

Fourthly,chemical identification method:use a concentration of 50% hydrochloric acid and hydrogen peroxide drops on clean insert (1-2 drops), then different insert can form different color and bubbles.

Posted by: hannahgwendolyn at 09:33 AM | No Comments | Add Comment
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