HOW TO GET LAST 10 YRS. QUESTION PAPERS

0 Answers   ONGC,

---

HOW ARC PRODUCE IN ELECTRIC ARC FURNACE

3 Answers  

---

What is the hottest part of flame in fire?

0 Answers  

---

Why are the superalloys used for land-based turbines?

1 Answers  

---

I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

0 Answers   Novellus,

---

is nickel considered a non-sparking metal?

0 Answers  

---

Where is mangenese steel used?

0 Answers  

---

Explain metallurgical microscopes?

0 Answers  

---

difference between sand casting and shell casting

0 Answers  

---

Define what is the difference between stainless steel and alloy steel?

0 Answers  

---

How do 304 stainless steel and 316 stainless steel weld to each other? I am hoping my medical device prospect will be able to weld a component made in 316 ss via metal injection molding toa 304 ss tube.

0 Answers  

---

What is d2? What is it used for?

0 Answers  

---