On February 7, the fifth day of the first lunar month, the local people commonly call this day "broken five." Early in the morning, Yongli County's Geely Fasteners Commercial Building was a predecessor of Rugao and Che Ruzhi. More than 6,000 standard production and sales personnel from all over the country set up showrooms, put products, and send messages here. Participate in the 8th Standard Part Vendor Association and Product Exhibition held in Yongnian County.
The county sponsors the standard parts manufacturer association and product exhibition to establish a platform for product ordering and information exchange for standard parts manufacturers and has been held for eight consecutive years. This exhibition has signed a total of more than 1600 product purchase and sales contracts, the contract amounted to 1.95 billion yuan, a record high. The fair also displayed a number of models of standard parts production equipment in the plaza. Through the standard parts website, the company published global supply information. The participants also conducted discussions on standardizing the market order, improving product quality, and counterfeiting. Li Xinbin, a standard parts manufacturer from Tangshan, said: “The annual product exhibition is an important link and bridge for our manufacturers to communicate. The merchants shop around to save cost, and manufacturers participate in the competition to improve product quality and truly realize mutual benefit and win-win... ..."
Yongnian County is the largest standard distribution center in the country, with more than 200,000 employees in the county, making it a traditional pillar industry for the rich. Since last year, the county has increased its support for the standard parts industry, with the creation of well-known brands as the starting point, and the optimized investment environment as an opportunity. The standard parts industry has achieved gratifying results. In 2010, the output reached 2.62 million tons. 18.2 billion yuan, exports exceeded US$9.26 million, the pace of development continued to accelerate, the scale of the industry expanded significantly, and a new leap was achieved.
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 (℃);
â–³
t---------------The
temperature control of tolerance (The general is 25℃).
The Aluminum Alloy Die Casting production and QC control
Aluminum Die Casting Parts
Aluminum Alloy Die Casting, Aluminum Pressure Die Casting, High Pressure Aluminum Die Casting, Aluminum Injection Die Casting
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