This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Identify three methods for controlling an exotherm in casting. What will be an ideal ... (Read 51 times)

wrbasek0

  • Hero Member
  • *****
  • Posts: 560
on: Aug 19, 2018
Identify three methods for controlling an exotherm in casting.
 
  What will be an ideal response?

Question 2

Identify the four major types of polymeric liquids used for casting, and give one specific example of each type.
 
  What will be an ideal response?

Question 3

What is a parting agent, and why is it important in casting?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cloudre37

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Aug 19, 2018
Answer to Question 1

Three methods for controlling an exotherm are making all sections of a part thin, casting thick parts in multiple pours, and minimizing the heat created by lengthening the curing time.

Answer to Question 2

Liquid casting resin  acrylic syrup, polyester resin, polyurethane, caprolactam Hot-melt resin  melted nylon, melted polyethylene
Plastisols and organisols  PVC plastisol
Solvent casting resin  acrylic dissolved in an acetone, nylon in dimethylformamide

Answer to Question 3

A parting agent is a mold release. These are important in casting because the complexity of many cast parts makes removal from the mold difficult. Therefore, some materials need to be coated on the mold so that release is facilitated.


wrbasek0

  • Member
  • Posts: 560
Reply 2 on: Aug 19, 2018
Wow, this really help

Chelseyj.hasty

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

The lost-wax casting process. The lost-wax casting process.
The Number of Children Americans Think Are Ideal The Number of Children Americans Think Are Ideal
Four methods of recording electrical activity of the nervous system. Four methods of recording electrical activity of the nervous system.
Methods of Stretching Methods of Stretching
The regulatory cascade controlling glycogen breakdown The regulatory cascade controlling glycogen breakdown
Research Methods Research Methods
Video: Neurosynapse Animation

For a complete list of videos, visit our video library