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Yes but it has very different effects than heat treating a metal.
When plastics are molded a certain amount of what is called molded in stress is applied when the part is cooled. The amount of molded in stress depends on the shape of the part cooling time etc. To reduce molded in stress generally you would increase the mold temperature and increase cooling time. However that gives us longer cycle times which costs money. With that said...
Heat treating plastics will help get rid of molded in stresses however will normally cause part warppage. On the other hand when done at lower temperatures heat treating a plastic for a short period of time prepares a plastic surface to be painted.
Heat treating a plastic for painting changes the surface energy of the material making it easier to apply the paint and produces a better adhesion.
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Is it possible to construct a heat engine that will not expel heat into the atmosphere?
is it possible to construt a heat engine that will not expel heat into the atmosphere
What is the max.hardness acheived in En8 material . Can anyone tell me what is EN8 Heat Treatment Standard conditions?
normally in soft cindition (before heat treatment) it is 200 to 240 BHN
Explain Heat Treatment process and its purposes?
Heat treatment process hardens the metal, after tempering In fact heat treatment is very similar to cooking!! Why you cook? to make sth you want! to make sth better.more delicious and .. . you are doing this process to make the thing you want.for example you want Fe in perlite with special hardness and other mechanical features.so you do heat treatment in a way you want and in pattern that you make.very simple but you must expert!
Why pneumatic system used in injection molding machine?
Pneumatics aren't used in injection molding.Injection molding is the process of, as the name suggests, injecting polymers into a mold through a heat treatment of the polymer.It's placed into a bucket in small pieces of coloured plastics, as this feeds into a rotating centre point, it's heated and forced into a smaller and smaller point, then when it comes out of the injection molding machine into the mold itself, it's in liquid form, and the pressure from the molding machine itself forces the liquid polymers into the form of the piece being made.
Does heat treatment increase the carbon content in carbon steel?
Heat increases the potential energy and temperature of steel.
Do polymers conduct heat?
Yes, polymers do conduct heat. How well this happens depends on the polymer concerned.
Why is thermoplastic heat resisting?
ThermoSETTING polymers are heat resisting. Thermoplastic melts.
How do you alter characteristics of polymers?
Characteristics of polymers can be altered by: irradiation, treatment with oxygen or other chemicals, rising the temperature, using additives in the composition.
When was Heat Treatment created?
Heat Treatment was created in 1976.
How do you prepare polymer blend?
By dissolving 2 polymers, mixing the solution, adding a surfactant and evaporating the solvent. Alternatively you can heat the polymers above the melting point and mix them
Is it possible to get effective case depth size 1.2 mm in mild steel material during heat treatment?
Not possible...the maximum hardness MS can have is 0.03mm by flame hardening...
What is cryogenic heat treatment?
cryogenic metal treatment
When heat is added or subtracted is called?
heat treatment
Post weld heat treatment for aws D1.1?
AWS D1.1; 5.8 "Stress-Relief Heat Treatment"
What is a common form of heat treatment using conduction?
Hot packs are a very common form of heat treatment utilizing conduction as a form of heat transfer.
Is it possible to heat a strip of rubber?
It is possible to heat anything.
What has the author Keith Kelly written?
Keith Kelly has written: 'Homogenous catalysis routes to heat resistant polymers'
