Prednost ove metode je zaštita površine predmeta i velika brzina zagrijavanja

# Prednost ove metode je zaštita površine predmeta i

• 225

This preview shows page 61 - 64 out of 225 pages.

Prednost ove metode je zaštita površine predmeta i velika brzina zagrijavanja. Nedosta tci su: skuplja obrada (otpadne vode treba neutralizirati), potreba čišćenja površine obrađenih predmeta jer na sebi zadrže manju količinu soli i relativno veliki gubit ci energije zračenjem površine kupke na okolni prostor. Slika 1.62. Peć sa solnom kupkom [9] 1 solna kupka 2 grijači 3 uronjivi termoelement 4 čelični lonac (do 900ºC) 5 šamotna opeka otporna na visoke temperature 6 lagana šamotna izolacija 4 5 6 Slika 1.61. Vakuum p [13]
63 1.6 SREDSTVA ZA HLAĐENJE Toplinskom obradom čelika mijenja ju se njegove faze i struktura nastojeći održati mehaničku ravnotežu. Da bi se postigla zahtijevana kombinacija mehaničkih svo jstava, predmet se mora s temperature austenitizacije hladiti točno određenom brzinom hlađenja. Kod toplinske obrade kaljenja hlađenjem se želi dobiti što više martenzita u strukturi. Kako bi se to ostvarilo, rashladno sredstvo

#### You've reached the end of your free preview.

Want to read all 225 pages?

• Fall '14
• Smith

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern