The main components of the HIP Chamber include:
Double-Walled Chamber
Closing Mechanism
Rack
Shelves
Heating Element
Cooling Mechanism
The double walled design serves two purposes: housing for the cooling mechanism and extra support whenever the gas pushes against the walls of the chamber.
A threaded lid was chosen as the closing mechanism for the chamber. The choice to make the lid a hemisphere was a result of the the load that would be placed on the lid once the pressure increased to its maximum value. The load distribution was more ideal with a spherical design.
A design consideration the team had was how easy placing parts into the chamber was going to be. In order to make the process as painless as possible, the choice to create a lightweight, removable rack for the shelves was decided. This allows the user to place all the implants they need outside the chamber and then load the entire rack/shelf unit into the chamber whenever it is ready.
A split shelf design was implemented which allowed the shelves to come apart in two halves while also being able to rest on top of the bars of the rack. The reason for the split design was so that the shelves could be easily removed from the rack which would allow for pieces taller than the height in between shelves to be placed inside the chamber.
A split grating was created with the intention to be laser welded on top of the shelf. This allows for the user of the chamber to place materials on the shelf while keeping the lightweight nature and split design feature in tact. This also allows the implant more exposure for the atmosphere that will be created within the chamber.
INDUCTION RODS
Induction rods are the main mechanism by which heat is introduced into the system. They were chosen due to how much control the team have over the heat output and because of the potential for very high temperatures. These rods will be used to heat the chamber to the desired 1650℉.
A titanium pipe paired with a water chiller, specifically North Slope Chiller, chills water to 40 degrees Fahrenheit and allows it to circulate around the first layer of the chamber in order to have a controlled cooling action. This is required as the implants must be slowly cooled to prevent deformation.
Created by: Allen Earley