| Product | Bus door emergency valve |
| Model | DB-V31-05B |
| Color | Yellow |
| Application | Universal buses |
| Hole Size | 90mm |
| Functions | gas control, without alarm switch, internal use, plastic crust |
Bus Emergency valve
Full range of bus parts
About us
Contact us 
| Product | Bus door emergency valve |
| Model | DB-V31-05B |
| Color | Yellow |
| Application | Universal buses |
| Hole Size | 90mm |
| Functions | gas control, without alarm switch, internal use, plastic crust |
Bus Emergency valve
Full range of bus parts
About us
Contact us
The aluminum die casting part production flow chart
Commonly used materials of aluminum die casting: ADC12, ZL101, ZL102,A380, AlSi9Cu3, AlSi12(Fe);
The precision of the aluminum die casting: ±0.1mm;
Smoothness of surface of rough part: Ra1.6~Ra3.2;
Shrinkage rate of aluminum die casting products: 0.5%;
Material wastage rate: 5%;
General aluminum die-casting machining allowance: 0.5mm~0.7mm;
Surface preparation methods: Sand blasted, Shot blasting, Powder coating, Painting, Plating, Electrophoresis, Polishing
The specific pressure parameters of aluminum die casting part
|
Material |
Thickness of die casting parts≤3mm |
Thickness of Die Casting Parts>3mm |
||
|
Simple structure |
Complex structure |
Simple structure |
Complex structure |
|
|
Aluminum alloy |
25-35Mpa |
35-45Mpa |
45-60Mpa |
60-70Mpa |
Injection speed of die cast process
|
Pouring liquid metal tie up chamber volume percent |
Injection speed(cm/s) |
|
≤30 30-60 >60 |
30-40 20-30 10-20 |
High speed computing formula
V -------------Cavity volume (CM3);
N ------------ Cavity No;
D ------------ Die-casting drift (CM);
T ------------- Proper filling time.
Holding pressure time
|
Material |
Thickness of die casting part<2.5mm |
Thickness of die-casting part>2.5~6mm |
|
Aluminum alloy |
1-2 |
3-8 |
Aluminum die casting mold temperature
Tm --------------- Aluminum Die Casting Mould required working temperature (℃);
Th -------------- Aluminum Alloy pouring temperature (℃);
△ t---------------The temperature control of tolerance (The general is 25℃).
The Aluminum Alloy Die Casting production and QC control
Aluminum Alloy Die Casting, Aluminum Pressure Die Casting, High Pressure Aluminum Die Casting, Aluminum Injection Die Casting
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