Machining cutting fluid can not be ignored!

As we all know, the product qualification rate is a key indicator that machining enterprises pay attention to, and it is also one of the factors that affect the development of enterprises. The maintenance and maintenance of equipment is a significant factor affecting the qualification rate of products. However, machining companies often ignore the impact of lubrication on equipment. Therefore, reasonable lubrication has become a compulsory subject for every machining enterprise.

Lubrication of equipment does not depend only on lubricating oil. As one of the main consumables in the machining process, cutting fluid also directly affects the lubrication effect of equipment. The selection of high-quality cutting fluids will help improve the machining accuracy and operating efficiency of equipment, helping machining companies optimize product qualification rates and enhance their competitiveness.

The cutting fluid has the functions of lubrication, cooling, rust prevention, and cleaning, which helps to reduce the wear of machining tools and improve the precision of the machined surface. Usually, it can be prepared with industrial tap water before it can be used. Therefore, machining enterprises first need to master the proportion and concentration range of the solution. CNC machining part

Proportioning solution:
For cutting fluids, the oil-in-water state is the most stable. The proportioning sequence is to inject water first, add the cutting fluid stock solution, and continue fully stirring. The deployment ratio is usually 1:20=5%, 1:25=4%.

To adjust the concentration:
When the concentration of the solution rises or falls, it is necessary to supplement the diluted solution to adjust the concentration. Do not add water directly to the high-concentration solution. Otherwise, the water-in-oil phenomenon will occur, and the solution will be unstable. The correct method is to add a 1% concentration diluted solution to a high-concentration solution or a 6% concentration diluted solution to a low-concentration solution to adjust the concentration to maintain the ideal concentration of 5%. stamping part
In addition, users need to pay attention to the following four points when using and maintaining cutting fluid:

1. Foaming
Most lubrication management personnel use tap water to prepare cutting fluid. The hardness of tap water is soft, and when the concentration deviation is encountered, the solution is easy to foam. As long as the concentration is controlled at 5%, the foaming problem can be solved. CNC aluminum part

2. Oil slick
There are usually two sources of oil slicks. One is that the guide rail oil sprayed regularly when the machine is running is sprayed and washed by the solution and flows to the solution tank; the other is the oil leakage of the hydraulic system of the spindle and tool change. The oil is easily emulsified because the emulsifier is added to the cutting fluid. Therefore, once the oil slick occurs, it must be removed in time. The ideal tool is an oil skimmer, and an oil suction bag can also be used.

3. Stink
When the oil slick covers the solution's surface, the solution will be in an oxygen-deficient state. Anaerobic bacteria will become very active in a suitable temperature and anoxic environment. When the anaerobic bacteria decompose the oil to obtain food, they release hydrogen sulfide gas, which is poisonous and dangerous to the human body. In addition, anaerobic bacteria are more sensitive to pH value. The pH value most suitable for the activity of anaerobic bacteria is about 6.8-8.5, and the concentration of the solution is about 2-2.5%. To prevent the activity of anaerobic bacteria, the concentration of the solution should be maintained at the level of 5%.

4. Skin allergies
The PH value that human skin can contact hovers around 7, and both acidic and alkaline solutions will irritate the skin, resulting in allergies. It is recommended that users wash off with soap or hand sanitizer as soon as possible after contact with cutting fluid, preferably with hand care products.
Recently, the state has vigorously promoted green development and stipulated that cutting fluids cannot contain halides such as chlorine. The primary source of these substances is additives, and their attachment to the product makes it impossible to pass the environmental certification.