Answer / r ramarao

do the pnuamatic test ofter shot blast

The requirement for ASTM A217 Gr. WC9 castings for valves components like Body and Bonnet were Normalising at 920+/- 20 Deg. C and Tempring 780+/- 20 Deg. C The specification calls furnace shall be calibtated within +/-14 deg. C The Heat Chart shows minimum temperature for normalising 900 to 920 Deg. C, but maximum temperature 960-990 Deg. C Tempering 780+/-20 Deg. C is within limits and accepted. Casting having integral test bars, heat trated along with castings passed in chemical znalysis and mechanical properties. Since normalising maximum temperature is not meeting specification, where castings can be salvaged or renormalised and retempered to meet specification. Whether it will have affect on remechanical properties testing

0 Answers   Leader Valves,

---

Explain wear resistance of titanium?

0 Answers  

---

Why are the superalloys used for land-based turbines?

1 Answers  

---

For define what reason would an aluminum casting, when applied with a powder coated paint finish, cause a poor finish to the paintwork.

0 Answers  

---

Why do the Gamma Prime and Gamma Double Prime phases play such an important role in promoting strength in the superalloys?

1 Answers  

---

Discuss about advatages and limitations of powder metallurgy.

0 Answers   John Deere,

---

Is brass magnetic?

0 Answers  

---

Which liquid would oyu use to dissolve gold?

0 Answers  

---

Discuss the otto cycle with diagram.

0 Answers   Essar,

---

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

0 Answers  

---

What is the use of gap(snap)gauge

0 Answers   NIC,

---

When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.

0 Answers  

---