What should be paid attention to in the daily maintenance of cutting fluid?

Routine maintenance knowledge of cutting fluid:

1. Regularly test the concentration and pH value of cutting fluid, and in the process of preparing cutting fluid, it is generally required to use tap water with better water quality to dilute the cutting fluid to reach the specified concentration, and stir it well.

2. Detect the number of cells in the solution to inhibit the growth of bacteria, the cutting fluid, especially the emulsion special solution, is polluted, and promote the growth of bacteria in the solution, if not treated, it will accelerate the growth of bacteria, resulting in the deterioration and odor of the cutting fluid.

3. Ensure the smooth flow of the cutting fluid pipeline and deal with the metal powder in time, in the metal processing process, the pipeline is easily blocked by various metal powders, if it is not excluded, not only can not be cut well, but also seriously pollute the cutting fluid and oil products.

4. After the end of processing, the machine tool should be protected in time, and the cutting fluid hose should be washed off the cutting and abrasive particles on the surface of the machine tool after the processing, and the protective door of the machine tool should be opened to discharge the humid air in the processing area.

5. The polluted cutting fluid should be strictly purified, generally speaking, the polluted cutting fluid contains metal powder, gravel fine powder, floating oil, free water, etc., so it must be purified in time.

6. Clean the cooling system of the machine tool regularly, replace the cutting fluid in time, when the solution will be polluted after a period of use, resulting in the unsmooth cooling system, at this time it is necessary to clean the system and replace the cutting fluid at the same time.

Cutting fluid (coolant) is a kind of industrial fluid used in the process of metal cutting and grinding to cool and lubricate tools and workpieces. It overcomes the problems of traditional soap-based emulsion that it is easy to smell in summer, difficult to dilute in winter, and has poor anti-rust effect, and has no adverse effect on lathe paint, and is suitable for cutting and grinding of ferrous metals, which is the most advanced grinding product at present. The cutting fluid is better than the saponified oil, it has the characteristics of good cooling, cleaning, rust prevention, etc., and has the characteristics of non-toxic, tasteless, no erosion of the human body, no corrosion of equipment, and no pollution to the environment.

The maintenance of cutting fluid mainly includes the following items:

1 .Ensure that the liquid circulation route is unblocked.

Prevent miscellaneous oil and sundries, especially food or cloth from mixing into the liquid supply system, and remove metal chips, metal powder, mold slime, decomposition of cutting fluid itself, and grinding wheel chips from the circulating route in time to avoid clogging.

2 .Antibacterial.

The importance of cutting fluids (especially emulsions) to inhibit the growth of bacteria is well known. The reproduction of bacteria can be inhibited by means of regular injection of fungicides and ultra-fine filtration.

3 .Purification of cutting fluids.

The substances contaminating the cutting fluid are mainly metal powders and grit fines, floating oil and free water, microorganisms and propacules, especially mucormycetes and fungi. The oil slick is a breeding ground for anaerobic bacteria, and if it is not removed in time, the cutting fluid will quickly stink.

4.Adjust the concentration.

Detect the concentration of cutting fluid with a refractometer every day, and adjust it in time, the correct concentration can ensure the stability of cutting fluid.

Fangchuan lubrication will answer for you:

1. It should be stored in a room away from light, heat and moisture;

2. The stored oil should be kept clean and clearly marked;

3. If it must be placed outdoors temporarily, it must be covered with a rainproof cloth;

4. Keep the floor of the warehouse clean, so as to facilitate the timely detection of oil leakage;

5. When the oil products are out of the warehouse, they should follow the first-in, first-out;

6. Cutting fluid is not easy to mix with other oils;

7. When the cutting fluid is replaced with a new one, the original liquid should be cleaned up and replaced with a new one.

How to use cutting fluid correctly?

1) Before adding cutting fluid, use a special machine tool pipe cleaning agent to clean the cutting fluid pool and pipeline, and sterilize it.

2) The concentration of cutting fluid can be a little higher for the first time, such as 4-10%. If it is used in the first centralized circulation cooling system, about 1% antifungal agent can be added.

3) Replenish cutting fluid regularly, and the concentration of supplementary cutting fluid should be slightly lower than that of the first addition (such as 2-5%).

4) When preparing cutting fluid, deionized water should be used. If tap water is used, the hardness of the water should generally be less than 400ppm. Otherwise, an anti-hard water agent needs to be added.

5) Clean the iron filings and filtration system in time to keep the cooling system clean.

6) Always check the concentration, alkalinity and number of bacteria of the cutting fluid to ensure that the cutting fluid is in good condition.

1. The operator should be coated with protective oil, wear work clothes and gloves, and should pay attention to avoid direct contact with cutting fluid.

2. The proportion of concentrate in the cutting fluid must be used according to the recommended value of the cutting fluid.

3. The use of fungicides should be used according to the dosage in the instructions.

Hope it helps.

At present, cutting fluids are roughly divided into semi-synthetic cutting fluids and fully synthetic cutting fluids.

When the cutting fluid is used for a period of time, the problem of deterioration will occur, and the oil change or the cause of deterioration should be considered and the solution should be adopted.

The reason for the deterioration of the cutting fluid is that the cutting fluid is worn out by various additives, which is a normal deterioration at this time, and the other reason is that the cutting fluid is contaminated by anaerobic bacteria due to improper use, which accelerates the odor and deterioration of the cutting fluid.

What are the issues that need to be paid attention to when replacing cutting fluid?

1. To clean the sink and water tank, generally rinse with clean water first, then prepare a cutting fluid solution with a certain concentration ratio for cleaning, and finally let the cutting fluid be prepared and rotate in the machine for about 15 minutes;

2. Make sure that the same type of cutting fluid is replaced, and the cutting fluid cannot be replaced at will;

3. When preparing the cutting fluid, especially the preparation of the emulsion, it should be noted that water should be added first and then the stock solution should be poured into the water, otherwise it is easy to affect the various functions of the cutting fluid when the solution has not been emulsified evenly.

Zhongyang lubricating oil engineers recommend the liquid change interval:

1.In the summer high temperature and rainy season, it is recommended to change the liquid once a month and a half.

2.In winter, the liquid change cycle can be more than three months.

3.In other seasons, it changes every two months.