Friday, December 28, 2018

Industrial Cleaning Methods


Industrial processes often leave dirt, grease, biological material etc. behind on the machinery being used. To clean away this residue, there are a variety of industrial cleaning machines to do the work: ultrasonic cleaning, high-pressure water cleaning, chemical cleaning, dry ice blasting, and saturated steam cleaning.
Ultrasonic Cleaning
Ultrasonic cleaning is the direct and indirect effect of the cavitation, acceleration and direct flow of the ultrasonic waves on the liquid and the dirt, so that the dirt layer is dispersed, emulsified and peeled off to achieve the cleaning purpose.
 


Features:
Ultrasonic cleaning is used widely to remove flux residue from soldered circuit boards. However, some electronic components, notably MEMS devices such as gyroscopes, accelerometers and microphones can become damaged or destroyed by the high-intensity vibrations they are subjected to during cleaning. Piezoelectric buzzers can work in reverse and produce voltage, which may pose a danger to their drive circuits.
Application areas:
Ultrasonic cleaners are used to clean many different types of objects, including jewelry, lenses and other optical parts, watches, dental and surgical instruments, tools, coins, fountain pens, golf clubs, fishing reels, window blinds, firearms, car fuel injectors, musical instruments, gramophone records, industrial parts and electronic equipment. They are used in many jewelry workshops, watchmakers' establishments, and electronic repair workshops.
High-Pressure Water Cleaning
Using water as the medium, the water will generate multi-beam, multi-angle and high-strength high-pressure water jets through the special equipment system, thoroughly cutting, crushing, squeezing and scouring the scale and attachments and plugs in the equipment.





Features:
The equipment cost is low, and the cost of environmental protection is high. Besides the quality of the water has a great influence on the cleaning effect.
Application areas:
Pressure washing is employed by businesses and homeowners to reduce allergies, minimize hazards, and improve aesthetics. A pressure washer is used to clean surfaces such as gutters, roofs, decks, sidewalks, patios, driveways, siding, parking lots.
Depending upon the surface to be cleaned, higher or lower pressure should be used, as well as the appropriate nozzle.
Chemical Cleaning
Chemical cleaning refers to the method of using chemical methods and chemicals to achieve the purpose of cleaning equipment.

Features:
Acid or alkaline cleaning material may cause corrosion to the object to be cleaned. The cleaning has a long downtime and consumes a lot of energy. The pollution is serious, and the special solvent also needs to be rust-proofed on the parts and equipment, which has certain damage to the operator's body.
Application areas:
Power industry, petrochemical industry, pharmaceutical industry, textile chemical fiber industry, paper printing, cement, and building materials industry, metallurgy industry, food industry, machinery industry, oil exploration industry, coal industry, oil exploitation industry, etc.

Dry Ice Blasting
Dry ice blasting is a form of carbon dioxide cleaning, where dry ice, the solid form of carbon dioxide, is accelerated in a pressurized air stream and directed at a surface in order to clean it. Dry ice blasting is an environmentally responsible cleaning method. Dry ice is made of reclaimed carbon dioxide that is produced from other industrial processes, does not add additional greenhouse gases to the atmosphere, and is an approved media by the EPA, FDA, and USDA. It also reduces or eliminates employee exposure to the use of chemical cleaning agents.
Advantage: It can be cleaned online to reduce downtime; there is no secondary pollution during the cleaning process. It can be directly cleaned without adding any cleaning solvent.
Disadvantages: Due to the use of ultra-low temperature dry ice, the cost is high, the equipment requirements are high; the requirements for the working environment are extremely high. The operator should pay attention to safety and must maintain good ventilation conditions during cleaning.
Application areas:
Dry ice blasting can be used to clean food processing equipment, plastic and rubber molds, conservation and historical preservation projects, semiconductor, aerospace, and medical device manufacturing industries. The cleaning process is also used in other manufacturing settings, such as cleaning production equipment on automated weld lines, cleaning composite tooling, cleaning industrial printing presses, cleaning molds and equipment used in foundries, and to clean equipment and tooling in onshore and offshore environments in the oil and gas industry.
Dry ice blasting is also used to deburr and deflash parts and surface preparation prior to painting.

Saturated Steam Cleaning
Saturated steam is steam that is in equilibrium with heated water at the same pressure, i.e., it has not been heated more than the boiling point for that pressure. This is in contrast to superheated steam, in which the steam (vapor) has been separated from the water droplets then additional heat has been added. The high temperature of the steam and the applied high pressure are used to clean the oil stain on the surface of the part and vaporize it. At the same time, it can clean any small gaps and holes, remove oil stains and residues, so as to achieve high efficiency, water saving, clean and dry requirements.
Features:
The method is environmentally friendly without adding any chemical products. Water consumption is lower.
Application areas:
Saturated steam cleaning is used in machinery, painting, cold (heat) processing, electronics and food industry.


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