Home> News and Cases shared> Casting info--graphics card

Casting info--graphics card

September 08, 2024
1.Casting info
name: graphics card
requirements :surface requirements
casting process: 
Die Casting machine tonnage:1200T
punch dia (mm):70
alloy material: ADC12
filling weight(g):900
casting weight (g):600
casting size(mm): 250*50*60
average wall thickness(mm):4
high velocity m/s:unknown
dry injection stroke(mm):unknown
pressure room filling rate:unknown
Inner gate section area mm²:250
2.Casting problem
porosity,see the defect picture
3.casting picture
pic 1 front top view
casting picture
4.Casting analysis
This case is a three-sided slider mold structure, the product has appearance requirements and air tightness requirements. Mold and machine mismatch (1200T) and gating system design problems are the main causes of defects
5. Improving measures
1.The PQ² tool is used to calculate and redefine the parameters of the mold and the machine. It is recommended to use 400T die casting machine to define the mold gating system.
2.The auxiliary runner at the bottom of the two side sliders starts from the front end to open the gate to achieve the sequential filling effect and maximize the exhaust air in the cavity to achieve the purpose of improvement.
6. Tips
For filling:
The filling sequence should be paid attention to. For example, in this case, the auxiliary runner is filled too fast, the filling is not complete but the exhaust is closed, which leads to air entrainment.
 
Contact Us

Author:

Mr. Logan

Phone/WhatsApp:

8618157495020

Popular Products
You may also like
Related Information
High pressure die casting valve structure characteristics, materials, testing and transmission

1, the performance of high-pressure casting cut-off valve: Because of the high-pressure cast-off valve seat channel change is proportional to the valve stroke. High-pressure globe valve stem opening...

Precision machining of tiny parts calls for miniature tools

Today's industrial products are constantly developing in size and scale. The processing of more and more products, such as medical and dental equipment, mobile phones, notebook computers, aerospace...

How about the development and trend of ultra-precision machining technology?

Since China listed “equipment manufacturing” as a national development strategy, China’s equipment manufacturing industry has made rapid progress. The manufacturing capabilities of many large-scale...

Die casting mold production use matters needing attention

When using die-casting molds, you need to pay attention: (1) Characteristics of use of die-casting molds; (2) the temperature of the alloy melt; (3) temperature of mold work; (4) Lubrication of die...

Related Categories

Email to this supplier

Subject:
Mobile:
Email:
Message:

Your message must be betwwen 20-8000 characters

We will contact you immediately

Fill in more information so that we can get in touch with you faster

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

Send