As a metallographic engineer, I prepare samples every day. When cutting and sampling, metallographic cutting fluid is indispensable. So, how to use and maintain metallographic cutting fluid? Have you done the right thing?


Usually, metallographic cutting machines are equipped with a cooling cycle system, both internal and external. The most commonly used cooling system is this external three-level filtration cycle, such as the metallographic cutting machine from MetLab in the United States. How to inject metallographic cutting fluid and water into the water tank in a certain proportion and perform maintenance during use?

The use and maintenance of metallographic cutting fluid mainly involve two aspects, one is the mixing ratio with water, and the other is how long it takes to add or replace.


1、 Mixing ratio:


Due to differences in the metallographic cutting fluid provided by various manufacturers, the mixing ratio of metallographic cutting fluid and water is also different. For example, the metallographic cutting fluid from QMAXIS in the United States is water=1:20 (volume ratio), while other manufacturers have 1:15 and 1:30, When using, please confirm the mixing ratio according to the product manual provided by the manufacturer. Water can be used with tap water without any special requirements.


2、 How long does it take to add or replace:


1. Add: When the metallographic cutting mixture in the cooling water tank is reduced to half, a new mixture of metallographic cutting fluid and water needs to be added to the water tank for further use.


2. Replacement: When the metallographic cutting mixed liquid in the cooling water tank is turbid or has an odor, it is recommended to replace all of it. While draining the original liquid, thoroughly clean the circulating water tank and filter screen, and then pour a new mixture of metallographic cutting liquid and water into it for continued use.

3. The addition and replacement of metallographic cutting fluid do not depend on time, but rather on its consumption and usage.


The above is the usage and maintenance method of metallographic cutting fluid. Have you done it correctly?


Of course, in addition to the above tasks, it is necessary to regularly clean the filter screen in the cooling water tank and maintain the cleanliness of the metallographic cutting mixture in the water tank, in order to extend its usage time and save usage, and better play the cooling effect and effect. The above is for reference! If you have any questions, please contact the engineer of pulse detection and we will provide you with more professional and detailed application suggestions.