Two Steps Industrial Ultrasonic Cleaner Injection Mold Cleaning 2 Side Transducer

Two Steps Industrial Ultrasonic Cleaner For Injection Mold Cleaning 28KHZ Mount 2 Side Transducer

How Does It Work?
Ultrasonic cleaning uses high frequency sound waves to generate cavitation in the liquid. The resulting energetic bubble action penetrates blind holes, cracks, and recesses to thoroughly remove all traces of contamination adhering or embedded on the solid surface. Contaminants can include dust, dirt, oil, pigments, grease, polishing compounds, flux agents, soot, and more.
Cleaning Sequence
BATH 1: Pre-cleaning and Hot Degreasing
Complete removal of various forms of surface contamination by means of ultrasound and hot cleaning solutions.
BATH 2: Rinsing, Grease/Cleaning, Solution Removal
Rinsing of residual grease/dirt and cleaning solution from the component to avoid cross contamination of subsequent bath.

How Ultrasonic cleaning machines working
Ultrasonic cleaning machines work on the principle of agitating cleaning solvents using high frequency sound waves, the ultrasonic agitation creates millions of microscopic bubbles that implode releasing vast quantities of energy, this action, know as cavitations, dislodges any contaminant stuck to the surface of a part, ultrasonic cavitations thoroughly cleans every surface in contact with the cleaning fluid

How to Clean Large Plastic Injection Molds

Complex molds require careful cleaning.

Complex injection molds represent substantial investments by plastic injection molding companies which, in order to protect their investments, must establish cleaning procedures to remove a variety of stubborn contaminants. These include burned on residues, oils, flashing and grease that if allowed to remain will result in product rejection by the quality control department. Hand scrubbing with solvents simply does not do the job. In addition to being time consuming, manual cleaning introduces potential health hazards for personnel and solvent disposal challenges. The solution is using an ultrasonic cleaner instead of scrubbing in a solvent-based parts washer.

Why an Ultrasonic Cleaner is Ideal for Injection Molding

In three words: thorough, safe and fast. Contaminants missed by manual cleaning are usually those deep in crevices and on other surfaces impossible to reach. Moreover, highly finished mold surfaces can be scratched or otherwise damaged by manual processes. Large molds can be difficult to maneuver, further risking damage during manual cleaning. And the longer it takes to clean the molds the greater the risk of damage.

Ultrasonic cleaning action solves all three issues.

It is thorough because it reaches all mold surfaces immersed in a biodegradable water-based ultrasonic cleaning solution. It is safe because while the cleaning action can be termed “violent” it occurs so fast that highly polished injection mold surfaces are not damaged during the cleaning process. By fast we mean 10 to 15 minutes although large complex molds may require a longer cleaning cycle.

Plastic Mold Cleaning by Cavitation Action

Cavitation action is described as the implosion of countless minute bubbles against surfaces of products immersed in the cleaning solution. Bubbles are created when generator-powered transducers bonded to the ultrasonic cleaner tank vibrate at ultrasonic frequencies measured in thousands of cycles per second or kilohertz (kHz).

Selecting the cleaning equipment is governed to a large extent by the size of molds being cleaned. Ultrasonic cleaners are available ranging from small benchtop units to industrial-sized floor-mounted equipment that can be fitted for automated cleaning and rinsing cycles. But do select a cleaner with a heater, timer and sweep mode.

The process is fairly straightforward regardless of equipment size. Here’s a simplified description that can be modified based on your demand

Ultra Sonic Mold Cleaner specific operations:

1. Fill the ultrasonic cleaner with water but allow room for cleaning solution displacement due to the size of the molds being cleaned. Add the proper amount of biodegradable cleaning solution concentrate. Ask the scientists at Tovatech to recommend the correct formulation based on the type of contaminants you are removing and what the mold itself is made of.
2. When you are ready to clean place the injection molds in the cleaner basket. Take care that they do not contact each other. If you are cleaning large parts you may suspend them in the cleaning solution so they do not contact the tank bottom. Some industrial cleaners are equipped with bottom racks to support products being cleaned.
3. Set the heater to 65 C and timer from 10 to 60 minutes depending on the degree of contamination. Activate the sweep mode to assure uniform distribution of cavitation and promote uniform cleaning then lower the molds into the solution. With experience you will establish optimum cleaning conditions.
4. At the end of the cycle remove the molds and inspect. When satisfied, rinse them with fresh hot water and allow them to dry or blow them dry with compressed air. Note that intricate configurations and cavities may trap water that should be removed by adding an electric drying oven to your setup.

Rinsing tip: You’ll want to thoroughly remove cleaning solution residues. Complex shapes may call for a spray rinse or, in certain cases, rinsing by cavitation in an ultrasonic rinse tank.

3 Tank Injection Molds, Blow Molds Ultrasonic Cleaning Machine With Each Tank's Dimension 1000*700*700mm