Every time I sell two CCs, two Magotan, three Sagitars, and six golf balls, one is from FAW-Volkswagen. What kind of concept is this? In addition to being invincible on the Brazilian court, the "German Chariot" is equally unscrupulous in the Chinese auto market, grabbing a larger market share with a fierce attack.
Now every country optimistic about the prospect of the magnesium alloy die castings,especially in auto,aviation,telecom,transportation and mechanical industry,
which adopt to use magnesium alloy die casting to replace steel casting for reducing weight effectively and then can save energy and reduce environment pollution.
The car can decrease 0.4L oil consumption per kilometer if it can relieve every 100KGS. So America,Japan and European countries have enlarge use of magnesium alloy Die Casting Parts, for example, steering wheel, instrument panel, seat skeleton, crankcase, gearbox shell, wheel hub and so on.
So magnesium alloy die castings grows at 20%~30% a year, 80% of them are die casting parts.
Meanwhile magnesium alloy die castings expand use in appliance light industry and daily hardware, such as notebook shell, VCR box,
mobile phone, power tool shell,camera shell, upholstery, mower shell etc. These magnesium alloy die casting parts with a series of advantages, not only greatly reduce weight, but also have the precise & steady dimension and smooth finish surface.
Die-cast magnesium alloy material:
material tightness, thermal effects during solidification, resistant to electricity chemical corrosion resistance capabilities.
to prevent oxidation reaction to proceed, so magnesium alloy flammable or explosive. Magnesium alloy is also easy to dissolve other metals, including magnesium
alloy severely reduce the ability of anti-electrochemical corrosion of nickel, copper and other elements. In addition, the same volume of liquid aluminum and magnesium alloy during solidification.
Magnesium alloy heat release was significantly lower than aluminum.
Magnesium alloy chemical elements:
Magnesium alloy commonly used alloying elements are aluminum and zinc. Alloying of aluminum alloy can improve the strength and casting properties. Zinc can also improve the performance of the alloy casting. In order to
ensure the casting performance, the aluminum content should be more than 3% in the die casting magnesium alloy, zinc content is less than 2%. Otherwise it is easy to
produce crack.
The commonly
used magnesium alloy die-casting material
Common cold chamber die casting machine injection parts must be improved
to meet the needs of the magnesium alloy die casting production as follows:
1)
Fast injection speed increased from 4~5m/s to
6~10m/s.
2)
Reduce the time of supercharging and build pressure.
3)
Improve the injection speed and injection force
control.
4)
Equipped with a special furnace protection gas
device
The aluminum die
casting part production flow chart
Commonly used materials of magnesium alloy die casting: ADC12, ZL101,
ZL102,A380, AlSi9Cu3, AlSi12(Fe);
The precision of the magnesium die casting: ±0.1mm;
Smoothness of surface of rough part: Ra1.6~Ra3.2;
Shrinkage rate of Mg alloy die casting products: 0.5%;
Material wastage rate: 5%;
General magnesium die-casting machining allowance: 0.5mm~0.7mm;
Surface preparation methods: Sand blasted, Shot blasting, Powder coating,
Painting, Plating, Electrophoresis, Polishing
Our company's magnesium alloy die casting production equipment and management system
Aluminum Die casting production equipment: L.K brand die casting machine From 160T, 200T,
280T, 400T, 630T, 800T and 1250T;
CNC machining center: 8 sets;
CNC lathe machine: 6 Guangzhou Machines and 7 Shenyang Machines;
Work days of one week: From Monday to Saturday;
Shift work: 2 shift per day;
Working
hours: From AM 8:00 to PM 5:00;
2D and 3D
drawing Software: AutoCAD, UG, Pro/E, SolidWorks 2013;
QC control: New type NANO CMM, FPI M5000
desktop metal analyzer, Easson projector, Mechanical properties tester.
The production of Magnesium die casting and QC control
Magnesium Die Casting Part, Magnesium Alloy Die Casting Part, Magnesium Die-Casting Product, Magnesium Injection Part NINGBO BEILUN LEMA MACHINERY TECHNOLOGY CO.,LTD , http://www.china-lema.com
According to data from the China Association of Automobile Manufacturers, in the first half of this year, FAW-Volkswagen ranked second with a total sales volume of 906,000 vehicles. The total sales volume of North and South Volkswagen accounted for nearly 20% of the total passenger vehicle market. In the bicycle sales ranking, the Volkswagen brand is the only one in the top ten list.
With the increase in sales, Volkswagen has also accelerated its expansion in the Chinese market. On July 7, under the witness of Chinese Premier Li Keqiang and German Chancellor Angela Merkel, FAW and German Volkswagen signed a "Joint Statement on the Establishment of a New Production Base of FAW-Volkswagen" in Beijing. The statement said that China and Germany will further deepen long-term strategic partnership, and in turn establish new production bases in FAW-Volkswagen East China and North China in Qingdao and Tianjin to meet production capacity and market needs.
It is reported that FAW-Volkswagen's first and second plants in Changchun have a capacity of 900,000 units and are basically fully loaded. The third plant in Chengdu currently has a capacity of 450,000 units, which can reach 600,000 units after expansion. The fourth plant is 300,000 units, and the current capacity of 300,000 units in the second phase has already started construction. In other words, the above four plants currently have a total capacity of 1.65 million units and an average capacity of 2.1 million units.
This year, FAW-Volkswagen's annual sales target is 1.7 million units, and may reach 1.75 million units. The expansion is imminent. According to Li Pengcheng, a spokesman for FAW-Volkswagen, the two new bases, the Qingdao plant, will be built first and will be completed and put into operation in 2017 or 2018, with a planned production capacity of 300,000 units. Due to the flexible production, it is not determined which models will be produced in Qingdao. The news that the FAW Volkswagen SUV that was previously reported by the media will be produced in Qingdao is not true.
Sun Guowang, secretary of the board of directors of FAW-Volkswagen and director of the General Manager Office, told reporters that the Tianjin factory will produce FAW-Volkswagen cheap cars and the media misrepresented. From the current situation, both the Qingdao plant and the Tianjin plant will produce FAW-Volkswagen brand products. The cheap car project is still under discussion and is expected to be officially announced during the year.
“The cheap car project should not use the public logo, but as for the final use, it is still under discussion.†Sun Guowang said that FAW-Volkswagen may set up a subsidiary to operate the project, because the launch of the new brand is a very complicated The project involves many problems such as products, channels and suppliers. Therefore, both China and Germany are very cautious. But what is certain is that both China and Germany are very optimistic about this project and are trying to speed up the project.
In the Chinese auto market, FAW-Volkswagen can be said to be a god-like existence. There are no A0-class cars, no SUV products, no MPV products, and even no new cars this year. However, with the appeal of the A-class and B-class cars, it has created an annual sales of 1.7 million units. With the increasingly fierce competition in the A-Class and B-Class markets, is this situation sustainable?
“FAW Volkswagen has planned a very complete product line, including SUVs, MPVs and A0-class cars.†Sun Guowang said that FAW-Volkswagen's SUV products are currently under development and will be available as soon as possible in early 2016. In the “2020 Strategyâ€, FAW-Volkswagen will reach a production and sales volume of 3 million units. At that time, the Audi brand will also build a system capacity of 1,000 million units per year.
Fan Xingbo, director of public relations at FAW-Volkswagen, admits that the rapid development of Volkswagen in China over the years has largely been attributed to the “fan economyâ€, which is also known as the “God Car Partyâ€. This is also the main reason for supporting FAW-Volkswagen to achieve 10 million vehicles in the year. As the Chinese auto market becomes more mature, the homogenization of products becomes more and more serious. In the future, consumers will change from buying a product to buying a brand. Therefore, the ability to build a brand system is fundamental to the sustainable development of automotive companies.
Magnesium and aluminum have big differences in the chemical, physical properties, mainly in terms of chemical reactivity, surface oxidation of the liquid metal
Magnesium has a strong chemical reactivity than aluminum and the metal bath surface can not be formed as dense as molten aluminum alloy oxide protective film
Mechanical properties of pure magnesium is very poor, can not meet the requirements of industrial parts of the yield strength and tensile strength. By adding alloying elements can significantly improve the mechanical properties of magnesium, the magnesium alloy`s strength to weight than the titanium alloy in all kinds of alloying and ranked second, open up broad prospects for its application.
The effect of alloying element second is to improve the performance of magnesium alloy casting. Pure magnesium have high melting point, poor mobility, high shrinkage.
By alloying can reduce the temperature of the liquid, increase liquidity. According to the characteristics of magnesium alloy decreased significantly at temperature above 150degrees Celsius and the strength of the alloy,
the third role is to enhance the creep resistance of magnesium alloy.
