Along with the gradual deterioration of the environment, with the increasing severity of air pollution, our lives have also been directly affected. As a lighting manufacturer, grasping the environmental protection concept of consumers has gradually become a sales hotspot. Consumers' awareness of environmental protection has been strengthened. There has been a saying in the industry that household environmental protection accounts for only 40% of households, and products account for 60. Because of the existing products and construction, the door enterprises have put forward the slogan of environmentally friendly plates. It is necessary to ensure that the home decoration of 40 is environmentally friendly, and that the products of 60 are environmentally friendly. In the past, whether living in the family or living in the 16th style, they were instilling a concept of life. However, today, health is the most important thing for consumers. As the air environment deteriorates, consumers' awareness of environmental protection continues to strengthen, and environmentally-friendly lamps have emerged as the times require, and gradually become the selling point of lighting manufacturers. Environmental protection into consumer purchases Mainly because consumers around 43 purchase lamps, the environmental factors of lighting products as the primary consideration, this is due to the essential characteristics of the lighting as a decoration material. The reason why consumers pay more attention to the environmental performance of decoration materials is closely related to consumers' desire to build a healthy and environmentally friendly home. Therefore, as a consumer who purchases lamps, paying attention to the environmental performance of lamps has naturally become the main reason for purchase. Environmentally friendly lamps have certain security guarantees on product materials. This is the expectation of consumers and the commitment of enterprises to consumers. However, lamps Only a two-pronged approach can avoid harmful substances from the source. At present, the development of environmental protection standards is very large. At present, the development of some lighting enterprises in China is mostly in a state of small, scattered, low-tech, non-environmental technology. The environmental standards of lighting have a certain gap compared with European and American countries. The energy consumption in China is more than three times that of developed countries. With the continuous introduction of national environmental protection policies and the increasing awareness of low-carbon environmental protection among the people, the understanding and understanding of environmentally-friendly lamps and lanterns is gradually deepening, and there is still much room for improvement in the environmental protection lighting industry. Environmental protection is increasingly important for a healthy family life, and consumers are paying more and more attention to the environmental performance of their products. In the near future, when environmental awareness enters everyone and is deeply rooted in the hearts of the people, traditional lamps will be replaced by environmentally friendly lamps.
"Gravity Die Casting. A permanent mould casting process, where the molten metal is poured from a vessle of ladle into the mould, and cavity fills with no force other than gravity, in a similar manner to the production of sand castings, although filling cn be controlled by tilting the die."
Gravity Die Casting
Sometimes referred to as Permanent Mould, GDC is a repeatable casting process used for non-ferrous alloy parts, typically aluminium, Zinc and Copper Base alloys.
The process differs from HPDC in that Gravity- rather than high pressure- is used to fill the mould with the liquid alloy.
GDC is suited to medium to high volumes products and typically parts are of a heavier sections than HPDC, but thinner sections than sand casting.
There are three key stages in the process.
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The heated mould [Die or Tool] is coated with a die release agent. The release agent spray also has a secondary function in that it aids cooling of the mould face after the previous part has been removed from the die.
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Molten metal is poured into channels in the tool to allow the material to fill all the extremities of the mould cavity. The metal is either hand poured using steel ladles or dosed using mechanical methods. Typically, there is a mould [down sprue" that allows the alloy to enter the mould cavity from the lower part of the die, reducing the formation of turbulence and subsequent porosity and inclusions in the finished part.
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Once the part has cooled sufficiently, the die is opened, either manually or utilising mechanical methods.
Advantages
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Good dimensional accuracy
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Smoother cast surface finish than sand casting
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Improved mechanical properties compared to sand casting
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Thinner walls can be cast compared to sand casting
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Reverse draft internal pockets and forms can be cast in using preformed sand core inserts
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Steel pins and inserts can be cast in to the part
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Faster production times compared to other processes.
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Once the tolling is proven, the product quality is very repeatable.
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Outsourced Tooling setup costs can be lower than sand casting.
Gravity Casting Parts
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