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

Author Question: Why are ejector pins made of hard yet shock resistant materials? What will be an ideal ... (Read 30 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Aug 19, 2018
Why are ejector pins made of hard yet shock resistant materials?
 
  What will be an ideal response?

Question 2

What feature in a mold will allow a hollow, cylindrical part to be made?
 
  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

mceravolo

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Aug 19, 2018
Answer to Question 1

Ejector pins can meet resistance when ejecting a part that is stuck in the mold. This resistance can cause some impact forces on the pins which, if they were brittle, could cause them to break. In normal use, the ejector pins must be strong enough to push out the part. Furthermore, the constant sliding of the long ejector pins requires certain strength to keep from breaking and excessive wearing.

Answer to Question 2

Hollow parts are made by inserting a core into the mold so that the material will flow around the core, displacing the resin from the volume to be hollow. When the mold is opened and the part is removed, the core is withdrawn and the solid, hollow part is created. Normally the withdrawal of the core occurs simultaneously with the opening of the mold.


Arii_bell

  • Member
  • Posts: 596
Reply 2 on: Aug 19, 2018
Thanks for the timely response, appreciate it

connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

California ground squirrel (Spermophilus beecheyi) in the man-made rocky shoreline of the Berkeley M California ground squirrel (Spermophilus beecheyi) in the man-made rocky shoreline of the Berkeley M
A healthy diet is made up of well-balanced nutrients. A healthy diet is made up of well-balanced nutrients.
Symptoms of a patient in shock. Symptoms of a patient in shock.
Nine labels used to identify hazardous materials in the Global Harmonization System (GHS). Top row: ... Nine labels used to identify hazardous materials in the Global Harmonization System (GHS). Top row: ...
Specific Gravity of Selected Materials Specific Gravity of Selected Materials
A solution is made by adding 0.100 mole of ethyl ether to 0.401 mole of ethyl alcohol. If the ... A solution is made by adding 0.100 mole of ethyl ether to 0.401 mole of ethyl alcohol. If the ...
Video: Cellular Respiration & Glucose Mobilization (Glucose transport & Phosphorylation of Glucose)

For a complete list of videos, visit our video library