Cryogenic Pipe Insulation

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FAQ

What is the meaning of deep frozen
So people use frozen ways to preserve food. Generally in a very short period of time, such as half an hour, so that the need to freeze the food quickly reach the specified ultra-low temperature, such as -30 ~-40 C.
What is the meaning of vacuum cooling in heat treatment
In order to eliminate residual austenite after heat treatment, after quenching or tempering
I would like to ask how the process of cryogenic treatment
The air is compressed to 0.5MPa, or 22.5MPa, can reduce the water cooling, after expansion machine (piston or turbine), the temperature dropped to close to the liquid temperature to the fractionation tower after liquefaction, become rich liquid, the liquid oxygen into a fractionating tower, liquid oxygen, nitrogen is directly sent out after heat exchanger. Inlet air cooling.
Can the cryogenic phase control the cooling rate?
2, the compressor refrigeration principle: the use of the suction pipe of refrigerant gas inhalation of low temperature and low pressure, through the operation of the motor drives the piston to compress it after high temperature and high pressure refrigerant gas discharge pipe to the exhaust, to provide power for the refrigeration cycle, so as to realize the compression, condensation, expansion and evaporation (endothermic) refrigeration cycle. The refrigerant of the compressor can be repeatedly used for a plurality of times, the consumption is relatively small, the power consumption in the refrigeration process is more, the cooling rate is relatively small, and the refrigeration temperature range is 0-80 DEG C. The above mentioned two kinds of refrigeration in the process of industrial production of cryogenic box, the use of liquid nitrogen refrigeration will be more. Liquid nitrogen refrigeration can be used in the temperature range from 0 DEG C to -196 DEG C. []
What is the meaning of cryogenic technology in the mechanical process, what is the specific practice?
Treatment of -130 DEG C is said to be a new and strong treatment process of cryogenic treatment to improve the wear resistance and toughness of materials and to improve the overall service life
How many changes in the properties of the cryogenic metal?
Name material application effect1 the average number of W18Cr4V drill holes is 2.87 times that of untreated2 the number of drill holes in W6Mo5Cr4V2 twist drill is increased by 84%3 15 W18Cr4V from each processing to raise to4 M16 punching bit W12RE each 20 thousand to 40 thousand pieces5 M16 punching bit 65Nb each 1 thousand to 3 thousand pieces6 scissors T8, T10, T12 scissors silicon steel sheet life increased by more than 2 times7 milling 434 stainless steel blade C-2 carbide service life increased by 400%8 bearing steel GCr15 wear resistance increased by 3 times9 M3*0.5 Cr12MoV from a pair of processing to improve the 8000 pieces10 silicon steel sheet die Cr12 die life doubled11 hot stamping die 3Cr2W8V increased by 2.5% compared with the conventional AB, B increased by, AK increased by 4.9%12 M22 trimming die 012A1 each from 8000 to 30 thousand pieces13 processing silicon steel sheet die Cr12 processing sheet number increased from 300 thousand to 600 thousand
Ultra low pressure casting mold useful, how to arrange the process? Thank you
While casting field production high temperature is about 660 degrees, some die casting production Aluminum Alloy temperature of 740 degrees, copper alloy die-casting production temperature even up to about one thousand degrees, the temperature and the ambient temperature, the temperature fluctuation is bigger, hot and cold alternating stress caused by the greater! That is, the stress produced in the production process is very large, even if the cryogenic treatment, the stability of the role of the size of the casting mold and plastic mold is not obvious! As for how you choose, you might as well try!
What is a cryogenic fast line
Broadly, cryogenic means - the temperature under 100 ℃, in industry can be divided into gas liquefaction technology, chemical industry and material industry of cryogenic treatment.