Why do some people want to have cryogenic?
Asked in Food Spoilage, Definitions
What is cryogenic freezer?
A cryogenic freezer is used to bring components inside the freezer down to cryogenic temperatures. Many cryogenic freezers are available for all sorts of applications. Cold boxes with added ln2 capabilities can refrigerate parts and then complete cryogenic processing cycles. Additionally, cryo freezers are available to freeze sex cells, stems cells, and more. Sometimes people are frozen after death, which is called cryonics. I have added a site below that has cryogenic freezers and processors available.
Asked in Engineering
Explian about cryogenic hardening?
Cryogenic hardening is often referred to cryogenic treatment and cryogenic processing. Using the term "hardening" is not correct. Cryogenic treatment does not increase the hardness of metals (I.E. rockwell hardness). Rather it changes metals on the molecular level so that they perform better. Cryogenic treatment is used for a variety of reasons including improving dimensional stability, stress relieving, increasing wear resistance, and eliminating walk and creep. A typical cryogenic treatment lasts for several days. Metal and steel parts will be put in a cryogenic processor at room temperature. The temperature will slowly be taken down to -300F below. Then it will hold there for 12 to 24 hours depending on the company doing the treatment. After that, the processor will have the temperature raised back to room temperature very slowly. Finally, the parts will be post-tempered to finalize the cryogenic treatment. Cryogenic treatment re-aligns the micro-structure of the metal to improve its structural stability. Retained austenite will be converted to martensite which allows for a tougher piece of metal. The eta-carbides in the metal will become precipitated which allows for a much higher degree of wear resistance. Below are some good sites for additional reference...
Asked in Units of Measure, Chemistry, Argon
How can we relate pressure against liquid argon contained in a cryogenic container We want to know the quantity used in our cryogenic tank with H2O level gauge of 40 from 45 is it possible?
Asked in Elements and Compounds
Is cryogenic freezing related to nitrogen?
Cryogenic freezing is certainly related to nitrogen. In order to complete a deep cryogenic treatment a cryogen must be used. The least expensive cryogen for deep freezing is liquid nitrogen. Another cryogen is helium which allows special made cryogenic processors to reach temperatures approaching absolute zero.
Asked in Teen Dating
Why would people want to know if people like them or not?
Asked in Human Behavior
Why do people want attention?
I'm a psychiatric nurse and it is my job to ask people this everyday. some of my patients say: because some people get jealous from people that get more attention. because some people want to be noticed as they never get noticed and they feel down because of it. because they want to treat people bad ways. because some people want others to feel sorry for them. (they may be ill or upset and have nobody around) however this isn't always the case. maybe some people don't want lots of attention but they get it so they have to act like they want it? also some people may want attention so that they can show off, maybe they do it to be popular. there are all different reasons why people get attention and not all the time, do they want it.