Bus Emergency Gas Control Valve

Model NO.: DB-V31-05B
HS Code: 8481804090
Model NO.: DB-V31-05B
HS Code: 8481804090
 
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

Bus Emergency Gas Control Valve
Full range of bus parts
Bus Emergency Gas Control Valve
About us
Bus Emergency Gas Control Valve
Contact us

Bus Emergency Gas Control Valve

 
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

Bus Emergency Gas Control Valve
Full range of bus parts
Bus Emergency Gas Control Valve
About us
Bus Emergency Gas Control Valve
Contact us

Bus Emergency Gas Control Valve

The aluminum die casting part production flow chart

Die casting 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

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

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

My company strength of aluminum die casting, CNC machining, and QA control


Aluminum Die Casting Parts

Aluminum Alloy Die Casting, Aluminum Pressure Die Casting, High Pressure Aluminum Die Casting, Aluminum Injection Die Casting

NINGBO BEILUN LEMA MACHINERY TECHNOLOGY CO.,LTD , http://www.china-lema.com