In recent years, our country's investment in sewage treatment has been increasing, especially the government-centered investment, coupled with the increase in market demand due to the importance of sewage treatment in the pharmaceutical, chemical and petrochemical industries, all of which make the market of water quality analysis instruments continue to expand. . According to the relevant market research report, China's water quality analysis instrument market will reach 550 million U.S. dollars in 2018 and will also become one of the markets with the greatest potential in Asia.
According to the above analysis, the domestic market is very optimistic about the prospects of water quality analysis instruments. Although there are several subdivided areas for water quality analysis instruments, including laboratory use, industrial use, river sewage and industrial wastewater treatment, municipal wastewater treatment and drinking water analysis, the most advanced water quality analysis instruments are water quality for industrial and laboratory use. Analytical Instruments. In addition, in terms of product demand, the current Chinese market is more inclined to multi-parameter measurement instruments, while the price is also a different neglect factor. As China's water quality analysis instruments continue to break through technological bottlenecks, the future will be high-quality, multi-functional, integrated, automated, systematic, and intelligent. This will become the main trend in the development of water quality analysis instruments. Domestic enterprises in China have only developed along this route to meet the needs of China's environmental protection industry.
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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