Refrigeration equipment used in electroplating industry

  Refrigeration equipment is used in the electroplating industry: controlling the electroplating temperature, increasing the density and smoothness of the plated parts, shortening the electroplating cycle, improving production efficiency and improving product quality.

  The use of chillers in the electroplating industry is divided into direct cooling and indirect cooling.

  1. Direct cooling: that is, the plating solution directly enters the evaporator of the freezer through the filter or filter screen to cool down and then returns to the oxidation tank. The advantages and disadvantages of this cooling method: the cooling time is short and the effect is good; the disadvantage is that the evaporator needs anti-corrosion treatment (usually titanium alloy is used), and the evaporator is prone to scaling, which needs to be cleaned regularly, otherwise the cooling effect and machine operation will be affected.

  2. Indirect cooling: Titanium tubes are laid in the oxidation tank, and the chilled water takes away the heat of the fluid through the titanium tubes to achieve the purpose of cooling;

  a. In electroplating production, the electroplating solution generates heat continuously in the electroplating reaction, so that the temperature of the electroplating solution gradually increases. When the temperature of the electroplating solution exceeds the requirements of the process, the surface coating of the produced electroplating products The firmness, uniformity, flatness and surface finish have a greater impact. Choosing to use the chilled water provided by the screw chiller to cool and maintain the constant temperature of the electroplating solution will greatly improve the electroplating production process and production efficiency.

  b. The cooling of the cooling liquid of the cutting tool of the machine tool and the control of the temperature of the cutting edge of the tool will directly affect the service life of the tool and the quality of the product.

  And the effect of electroplating industry using electroplating chiller:

   The electroplating solution is cooled to stabilize the metal and non-metal molecules. The freezer makes the metal molecules quickly attach to the surface of the plated parts with a stable current, increases the density and smoothness of the plated parts, shortens the electroplating cycle, improves the quality, and It can effectively recover all kinds of expensive chemicals, and industrial refrigeration equipment is also suitable for vacuum coating industry. A. Direct cooling means that the plating solution directly enters the evaporator of the freezer through the filter or filter screen for cooling and then returns to the oxidation tank.

  Pros and cons of this cooling method:

  The cooling time is short and the effect is good; the disadvantage is that the evaporator needs to be treated with anti-corrosion, and the evaporator is prone to scaling, which needs to be cleaned regularly, otherwise the cooling effect and machine operation will be affected. B. Indirect cooling: Titanium tubes are laid in the oxidation tank, and the chilled water takes away the heat of the liquid through the titanium tubes to achieve the purpose of cooling;

  Xurui brand electroplating air-cooled chiller advantages:

  1. No-installation cooling tower, easy to install, easy to move, suitable for occasions where there is a lack of water sources and no-installed water tower;

  2, low noise fan motor, better cooling and condensation effect, stable throttling mechanism, excellent anti-rust treatment;

  3. The heat exchanger made of titanium material meets the corrosion requirements of the electroplating industry;

  4. Install anti-corrosion evaporators, stainless steel pipes, stainless steel pumps or use plate exchangers. It will help stabilize the metal ions, so that the metal ions can be quickly attached to the electroplated parts, which not only increases the density and smoothness, but also reduces the Electroplating times, improve productivity, help to quickly recover various chemicals and reduce waste;

  5. The water tank made of pure stainless steel without coils has a lasting and stable cooling effect, and the temperature control accuracy is ±1°C;

  6, increase with ultra-high, low temperature display and signal output protection, configure normally open and normally closed output for selection;

  7. The chilled water circulation system adopts stainless steel multi-stage pump and stainless steel, PVC material connection, no worry of rust, and pure water or deionized water can be used directly;

  8. Add a water filter to provide the precision of high-quality laser work, add a water outlet pressure indicator to facilitate adjustment of pressure and flow, add a flow protection device, and automatically disconnect the power of the laser machine when the water flow is too low. To prevent the laser head from overheating due to lack of water, increase electronic temperature control, double-digit display, there are various settings and fault display functions, only one key operation (on and off key), the rest are automatically realized by the memory function;

  9. The cooling capacity range is: 102500Kcal/h to 654800Kcal/h.

  10. The unit does not need to be equipped with auxiliary equipment such as cooling water pump and cooling tower, as long as it is convenient to use in a well-ventilated place, it can save a lot of materials and engineering installation costs, and even does not need to set up a machine room.

  11. In addition to stereotyped products, the company can also customize various special chillers and heat pump units according to customer requirements, and provide on-site assembly, technical guidance and on-site debugging services.

  12. The condenser of the unit is fin type, adopts double oil corrugated hydrophilic aluminum platinum, and is manufactured by professional heat exchanger processing equipment. It has the advantages of compact structure, small volume, light weight and high heat exchange efficiency. And equipped with low-speed large-leaf axial flow fan, which can effectively reduce operating noise and reduce the impact on the surrounding environment.

  Installation steps

  1. The installation site of the unit must be the floor, the installation pad or the foundation, its level is within 6.4mm, and it can bear the operating weight of the unit.

  2. Select the water pipe with the appropriate diameter, the cooling system and the cold water system when the unit is running at the maximum power, and connect them correctly.

  3. At one end of the unit, there should be a vacuuming space for cleaning the condenser tube bundle, or a door opening or other suitable openings can be used. Installation Precautions:

  4. In order to reduce noise and vibration, vibration isolators can be installed on the pipeline.

  5. In general, proper water treatment and regular cleaning of the tube bundle can maintain its good performance. If the existing water quality conditions cannot be improved by appropriate methods, then consideration should be given to allowing the tube bundle to have a larger size. fouling factor or specify specialized materials of construction.

  6. The unit should be placed in a room with a room temperature of 4.4-43.3°C, and there should be enough space around and above the unit for routine maintenance.