Bake-out
Bake-out,in several areas of technology and fabrication, and in building construction, refers to the process of using high heattemperature(heat), and possiblyvacuum,to removevolatilecompounds frommaterialsand objects before placing them into situations where the slow release of the same volatile compounds would contaminate the contents of acontainerorvessel,spoil a vacuum, or cause discomfort (odor or irritation) or illness. Bake-out is an artificial acceleration of the process ofoutgassing.
In manufacturing[edit]
In various physics and vacuum device engineering, such asparticle accelerators,semiconductor fabrication,andvacuum tubes,bake-out is amanufacturing process,the period of time when a part or device is placed in a vacuum chamber (or its operating vacuum state, for devices which operate in a vacuum) and heated, usually by built-in heaters. This drives off gases, which are removed by continued operation of the vacuum pump.Low hydrogen annealing,or hydrogen bake-out, is used to help reduce or remove hydrogen in stainless bulk steel.[1]
In construction[edit]
In building construction, bake-out is the use of heat to removevolatile organic compoundssuch as solvents remaining in paint, carpets, and otherbuilding materialsfrom a building after its construction, to reduce annoying odors or improveindoor air quality.[2]The building interior is heated to a much higher temperature than normal and kept at that temperature for an extended period of time, to encourage such compounds to vaporize into the air, which isvented(released to the atmosphere).[citation needed]
See also[edit]
References[edit]
- ^"Air bake-out to reduce hydrogen outgassing from stainless steel".pubs.aip.org.Retrieved2023-12-02.
- ^Park, Seonghyun; Seo, Janghoo (3 Dec 2018)."Bake-Out Strategy Considering Energy Consumption for Improvement of Indoor Air Quality in Floor Heating Environments".International Journal of Environmental Research and Public Health.15(12): 2720.doi:10.3390/ijerph15122720.ISSN1661-7827.PMC6313476.PMID30513907.