A method includes issuing a state change fluid into an internal passage of an additively manufactured article and causing the state change fluid to change from a first state having a first viscosity to a second state that is either solid or has a second viscosity that is higher than the first viscosity within the internal passage. The method can also include causing the state change fluid to change back from the second state to the first state and flushing the state change fluid from the internal passage to remove residual powder from the additively manufactured article.

Methods, apparatuses and systems can be provided to remove vulcanized rubber contamination and other process related residues, such as sulfur-based residues from a vulcanization mold. A vulcanization mold can be placed in a reactor where solid vulcanized rubber contamination can be turned into its base substances on a particle level by reversing the vulcanization and breaking the sulfur-bonds of the contamination. The reactor can be filled with a process liquid that interacts with the devulcanized particles. Energy can be applied to the process liquid to set it into motion to transport devulcanized particles away from the mold surface and from mold cavities such as air venting systems, of which can include then a combination of devulcanization and then a nucleation process to remove the contaminants from the mold.

A method includes placing an additively manufactured article having one or more internal channels in a non-reactive liquid to remove remainder powder from within the one or more internal channels, wherein the non-reactive liquid is a gas at room temperature and/or pressure. Placing the additively manufactured article in the non-reactive liquid includes can include placing the additively manufactured article in liquid nitrogen.

A method for detaching elastomer particles that adhere on microvalves (3) disposed on the internal surface of a vehicle tire mold (2) comprises vibrating the microvalve (3) at a constant amplitude ranging between approximately 0.05 and 0.2 mm and at a frequency ranging between 20,000 and 30,000 Hz during the detachment of the particles from the microvalve (3).

A self-cleaning component assembly includes a fluid containment vessel, an ultrasonic transducer fixed to a wall of the fluid containment vessel, and a germicidal light source fixed to the component such that germicidal light is directed to an internal cavity of the fluid containment vessel.

A method for preventing plugging of a continuous-reaction channel-system caused by a by-product of a continuous-reaction being carried out in said channel-system comprises the step of generating at least one ultrasonic wave travelling through said channel-system by coupling in a flow direction of at least one process fluid of a plurality of process fluids said at least one ultrasonic wave into said at least one process fluid.

A reprocessing apparatus for washing and cleaning a load comprising a reprocessing chamber, a buffer tank, a buffer tank valve and recirculation valve, fluid distribution devices and plurality of pumps, at least one ultrasonic transducer and a drainage system characterised by said buffer tank is supplied with fresh water and process chemical where buffer tank holds fresh process fluid that is pumped to at least one fluid distribution device and directly into the load, the drainage system for discharging process fluids and recirculation loop for pumping said fluid back the reprocessing chamber, and a method of reprocessing a load in a reprocessing apparatus characterised by that fresh water is mixed with process chemicals externally to said chamber in the buffer tank and delivered to said chamber through fluid distribution devices and internal connecting lines while simultaneously washing the load internally and externally and discharging the fluid from the reprocessing chamber.

An fouling cleaning process (blasted-particles cleaning process) of performing, at least once, ultrasonic cleaning treatment (Steps S22 and S25) of immersing a turbine rotor blade in a water basin and conducting an ultrasonic wave into the water basin to clean the turbine rotor blade, and pressurized-water cleaning treatment (Steps S23 and S26) of spraying pressurized water into an internal cooling flow channel after the ultrasonic cleaning treatment is performed, after a bonding coat layer removing process of removing a bonding coat layer (first coating layer) by chemical treatment and a cleaning process of cleaning the turbine blade by blast treatment, and then heat tinging process is performed.

A substrate stocker system that may include a high-density storage chamber that comprises a plurality of compartments, each storing one or more high density substrates, one or more robots configured to move one or more compartments of the high-density storage chamber for cleaning, and a cleaning module configured to clean the one or more compartments, while the one or more compartments hold corresponding one or more substrates.

Cleaning the inside surfaces of tubes in a cracking furnace, or other type of structure with tubes, is very difficult and time consuming. An acoustic energy cleaning apparatus is provided that is clamped onto a tube, and a liquid solvent is filled within the tube. The cleaning apparatus includes an ultrasonic transducer that causes cavitation of the liquid inside the tube, which dislodges material build-up. The apparatus also includes a rigid seal cover that encompasses a lower portion of a transducer housing, and an annular resilient seal positioned within and below the seal cover. The apparatus also includes an injection hole that fluidly connects a space, defined at least by the annular resilient seal and a bottom surface of the acoustic transducer, to an external environment. A user injects gel into the injection hole.