Technical Services

Technical Services

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1. How is the emulsion Stink?
The emulsion stinky is caused by anaerobic bacteria generated in the emulsion. Users referred to this as Sunday stinky (i.e.: emulsion stink after a Sunday). If the emulsion is often stirred and contact with sufficient oxygen, the stinky phenomenon will not be easy to appear. There are two effective prevention measures, one is for the stinky emulsion systems, and the other one is for not yet stinky emulsion systems.
Tested by rat oral acute toxicity test, our emulsion products are "non-observed toxicity". We adopt proprietary anaerobic bacteria inhibiting scheme, there will be no stinky phenomenon in use.
2. The experiences and skills of using DIC-206 Water-Soluble WEDM Concentrate
DIC-206 Water-Soluble WEDM Concentrate is a new environment - friendly product which basic compositions and using methods are essentially different from conventional emulsified WEDM fluid and commercially so-called "water-based" WEDM fluid. Since DIC-206 water-soluble WEDM fluid can be used for long-term without replacement, it is very important if concentration of working fluid can be normally maintained or not. Here we’ll communicate and exchange with you about the concentration maintaining and foam issues solved skills.
2.1. Skills of concentration maintaining
Since the boiling points of active ingredients in DIC-206 water-soluble working fluid are all higher than water, the concentration of working fluid will certainly increased as long as no water is supplemented, whether the fluid is used or not. The concentration may decrease only after supplement water.
That means the working fluid which has been adjusted for the appropriate concentration, as long as no water is supplemented, concentration will certainly increased, don’t need checking. Only is water has been supplemented, the concentration is possible to decrease, then the checking must be done. Checking if the concentration is appropriate or not, and supplement concentrate. Each shift should supplement water and check concentration. It shall be emphasized that as long as water is supplemented, concentration must be checked! Because only maintaining an adequate concentration can ensure that no rust problems will appear.
2.2. Solving foam problem
The key to solve the foam problem is to supplement enough water in the fluid reservoir every shift, and then check the concentration and maintain. If the foam is very much, the level of working fluid in reservoir shall be checked firstly. When the fluid level is low, the pump stirs a lot of bubbles inside the reservoir. Then the foam is pumped to the working bench along with working fluid, thus making it difficult to control.
In addition, a good anti-foaming agent is emulsified silicone oil which is difficult to disperse in water. It shall be sprayed distributed on the bed surface of many points. Now, every packing bucket of our DIC-206 is equipped with a spray bottle. User shall use it according to the instruction on the spray bottle.
3. The concept of "water-based" working fluid (cutting fluids, WEDM fluid)
Through the communication with users and relevant personnel, we found that a lot of people are somewhat vague on the concept of "water-based" working fluid. Particularly always confuse the water-soluble synthetic cutting fluid (or water-soluble WEDM fluid) and semisynthetic fluid (in fact, suspension). Metal working fluid (containing EDM fluid) according to product compositions and status in processing, divided into four categories: straight oils, emulsified oils, semisynthetic fluids (microemulsion), and synthetic fluids.
3.1. Straight oils are entirely composed of mineral oil and oil-soluble substance, which shall be applied directly without adding water. Products such as: extreme pressure cutting oil, EDM fluid, etc.
3.2. Emulsified oils are composed of mineral oil, emulsifiers, and necessary additives, in which mineral oil content is not less than 60%, and shall be diluted to 5% suspension by adding water in processing. Products such as: antirust emulsified oils, DX- WEDM emulsion, saponified oils, saponified blocks, and emulsified grease etc.
3.3. Semisynthetic fluids are composed of emulsifiers, mineral oil, water-soluble rust inhibitions etc., in which the mineral oil content is about 15 to 30%, and shall be diluted to 5%~8% suspension by adding water in processing. Products such as: microemulsion cutting fluid, some "water-based cutting fluid" and so on.
3.4. Synthetic fluids are entirely composed of water-soluble substance,  and shall be diluted to 5%~25% water solution. Products such as: synthetic cutting fluid, water-soluble WEDM fluid, and coolant for inner diameter saw.
Emulsified oil, semisynthetic fluid (microemulsion), and synthetic fluid all shall be diluted by 75~95% water, in which water is accounted for most as the foundation. Therefore, these three types are all called water-based working fluid. Wherein, the synthetic fluid is aqueous solution. Water-soluble working fluid only refers to synthetic fluid.