How to detect the concentration and pH of emulsion, cutting fluid in real time online?
In the daily use of cutting fluid, real-time online monitoring and control of concentration and PH value, as well as daily maintenance of cutting fluid and machine maintenance, help to ensure the best use of cutting fluid or effectively extend its service life. Reduce the odor of cutting fluid, deteriorate the troubles, enhance the trust of customers, and truly save money, save effort, and save the mind. How to detect the concentration and pH of emulsion, cutting fluid in real time online? Plastic Headlight,Polishing Plastic Headlights,Car Plastic Headlight,Defog Plastic Headlights NINGBO ZHENGUO INTELLINGENT LIGHTING CO.,LTD , https://www.nbzguolight.com
Metalworking fluids are mainly liquids for metal processing, mainly for lubrication and cooling, and also have anti-rust cleaning effects. General metalworking fluids include cutting fluids, cutting oils, emulsions, stamping oils, quenching agents, high temperature oils, grinding fluids, anti-rust oils, cleaning agents, blackening agents, and deep drawing oils. However, machining companies face confusion in production – the smelting and deteriorating of cutting fluids, often used by companies – to find high-quality cutting fluids. However, the practical application proves that the answer is: in the correct selection, in fact, real-time monitoring and control of cutting fluid concentration and PH value, as well as daily maintenance and maintenance. 
Application of On-line Detection System for Measuring and Controlling Cutting Fluid, Emulsion Concentration and PH Value in Mechanical Precision Machining
First, the rational use of cutting fluid
Reasonable use of metal cutting fluid can effectively reduce the cutting force, reduce the cutting temperature, and reduce the thermal deformation of the processing system, which can not only ensure the processing quality of the workpiece, but also extend the tool life and reduce the processing cost.
The main role of metal cutting fluids in mechanical removal processing is cooling, lubrication, cleaning and rust prevention. The effect of the cutting fluid depends not only on the various properties of the cutting fluid itself, but also on the processing requirements, workpiece materials, tool materials and processing methods. It should be considered comprehensively, properly selected and used correctly.
1. According to the processing requirements
In roughing, the amount of cutting is large, and a large amount of cutting heat is generated. In order to reduce the cutting temperature, a water-based cutting fluid with good cooling performance should be used. When finishing, the workpiece is required to obtain the best surface quality and a small surface roughness value, so cutting oil should be used.
2. Correspond to different processing methods
In contemporary machining, there are many ways to cut. For example, turning, milling and drilling usually require high-efficiency machining, so water-based cutting fluid should be used. When broaching and cutting, it must be processed with expensive and expensive tools to ensure the quality of the machining and the long use of the knife. For life, it is best to use oil-based cutting fluid.
3. According to the different materials of the workpiece and the tool
Different materials and workpieces have different high temperature resistance, machinability and hardness. In this case, different cutting fluids should be used. For example, when machining a gear with a lower hardness, it is necessary to use a higher viscosity cutting fluid to prevent scratches on the gear surface. For cutting stainless steel "target=_blank> stainless steel, which is difficult to machine, extreme pressure cutting should be used. Oil or extreme pressure emulsion.
4. To choose the machine's own characteristics
For some high-efficiency and valuable equipment, from the maintenance point of view, oil-based cutting fluid with stable physical and chemical properties should be selected to prevent corrosion and rust of metal parts and obstacles in moving parts of moving parts. However, it is generally not advisable to use oil-based cutting fluids for some open machine tools to prevent the cutting oil from being volatilized and dissipated.
Dimensional, metalworking fluid daily maintenance and maintenance
As a routine maintenance, the first thing to think about is the control of product concentration. Any brand or model of cutting fluid has the manufacturer's recommendation, and the concentration range is generally between (3-10)%. This is not only related to the cutting fluid itself, but also directly related to the machining process. It is recommended that the concentration be strictly controlled within the recommended range during the daily maintenance process. For processes with high finishing or processing quality requirements, increase the range by 1%-2% based on the recommended range of the manufacturer, so that not only the concentration fluctuation can be reduced. The impact of the processing quality and tool life, but also effectively extend the life of the cutting fluid.
However, the actual maintenance cost is not as much as imagined, because the vast majority of evaporation during processing is moisture, so the rehydration concentration will be much lower than the recommended concentration under normal conditions.
How to reduce the fluctuation of cutting fluid concentration? There are several measures as follows:
First, it is the control of liquid level and concentration.
(1) Maintain a reasonable liquid level. Generally speaking, the liquid level of the centralized liquid supply system is controlled between 60% and 80% of the tank capacity; the liquid level of the single machine should not be lower than 80% of the tank capacity. (2) Set the target value, that is, the median value of the concentration range; below this value, the fluid should be replenished; (3) When rehydration, it is recommended to use the compounder. If the compounder is not equipped, it should be added to the maximum flow when adding liquid. The stock solution can be dispersed as quickly as possible; secondly, the pH of the cutting fluid is monitored, which is unfavorable as the body temperature, too low or too high. In general, the pH of the cutting fluid is optimally between 8.8 and 9.5. However, there is a problem with the cutting fluid, and more is “low-burningâ€. Especially when the operating rate is not high in summer, the probability of pH reduction will be more. .
What if the pH is lowered?
(1) It is still within the controllable range, and the concentration can be appropriately increased by 1-2%, and the management of oil slick and periodic circulation can be strengthened;
(2) When the pH value is between 8.5 and 8.8, an appropriate amount of the pH enhancer specified by the manufacturer may be added, and the microbial content may be detected;
(3) When pH ( 4 ) strictly observe the daily maintenance management record of cutting fluid.
In the daily use of cutting fluid, real-time online monitoring and control of concentration and PH value, as well as daily maintenance of cutting fluid and machine maintenance, help to ensure the best use of cutting fluid or effectively extend its service life. Reduce the odor of cutting fluid, deteriorate the troubles, enhance the trust of customers, and truly save money, save effort, and save the mind. 
Online detection and control system for emulsion, cutting fluid concentration and pH
Cutting fluid online concentration measurement and control system technical parameters: Product number CY-QX-SS Measuring range Brix (0.0-35.0)%; PH: 0.0-14.0 (with imported custom no-clean flat electrode) Resolution Brix: 0.1% measurement accuracy ±0.2% measure temperature 5 to 60 ° C (automatic temperature compensation) Ambient temperature 5 to 40 ° C Input power DC 24V Key material Sensor housing: SUS316L Signal output 4-20mA Protection level IP67 dustproof, splashproof Highest pressure Product Size ¢122X76 CY-SMC concentration controller 1, 3.5 inch dot matrix high brightness LCD screen;
2, powerful control functions, upper and lower limit control, alarm output, etc.;
3. Built-in 4-way switch quantity and relay output are used to control the actuator;
4, S485 communication output, MODBUS RTU communication protocol;
5. Custom control mode, cleaning mode, automatic cleaning time and cleaning interval;
6, built-in EEPROM, all parameters are permanently stored in the host, power loss is not lost;
7, built-in sensor self-diagnosis function, possible faults at a glance;
8, built-in real-time curve, easy to trace historical data;
9, built-in USB2.0 port, data export is very convenient;
10, built-in 4-way relay alarm output
11, standard Ethernet communication interface: RJ45 (optional)
12, embedded dashboard installation, easy system integration;
13, the ambient temperature is 0--50 ° C;
14, power: 220VAC, 50HZ, power consumption: ≤ 10W;
15. Compact design, the outer dimensions are only 160 (W) × 80 (H) × 100 (D) and 0.5 KG weight CY-CL77 cleaning kit 1. Stainless steel "target=_blank> stainless steel check valve (SMC) 2. Cleaning nozzle (SUS316L) 3. Cleaning adapter (SUS316L) 4. Solenoid valve (SMC) 5. Quick-connect clamp, etc. (diameter 77.5) Compact overall chassis Integrated power switch, alarm indication, 24V power supply and fittings, easy to install, easy to operate, the overall size of the chassis is: 272 * 396 * 205 (width * height * thickness)
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