Overview of Light Truck Vans

In an era when science and technology have not yet developed, people travel without cars, ordinary people can only rely on walking, and those who are valued are riding on a sedan chair. People need to rely on a large amount of labor to transport goods, and the time spent on transportation is very large; people now have cars and can drive to various places. The way in which goods are transported is also changing, and when people make cars, trucks are born. As the name suggests, trucks are vehicles used to transport goods. This can save labor and reduce the loss of time.

轻卡厢式货车的概况.jpg

The definition of a truck is a large category, and there are many types of trucks. Cars that are loaded are known as trucks, also called trucks, and they are mainly used to transport goods. Light trucks also belong to the category of trucks, which are also mainly used to transport goods. Trucks are classified into light and heavy trucks according to their weight. Light truck trucks are light trucks. Some of the places where goods are loaded by trucks are carriage-type ones, some are flat panels, and flat-panel ones are full-hanging flat panels and ordinary flat panels. Light-duty trucks are compartment-type and are completely closed outside. Some trucks have different characteristics depending on the loading place, and the structure of the driver's seat is also different. The compartment of the light truck van is separated from the driver's seat.

Light-duty trucks can use diesel engines for their cost. Diesel engines are cheaper than gasoline engines, and their price advantage is also available. Compared with other heavy goods vehicles, light trucks are more flexible and convenient for driving. Such trucks facilitate the transportation of goods between cities, and the cost of transportation is relatively cheap. Although the number of goods transported by light trucks is limited, it can basically meet people's transportation needs. Trucks generally consist of engines, chassis, bodywork and other electrical equipment. Each truck has its useful life. Use light-duty trucks, pay attention to maintenance in peacetime, once the damage should be repaired immediately to avoid the occurrence of driving accidents.


"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.

  1. 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.
  2. 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.
  3. Once the part has cooled sufficiently, the die is opened, either manually or utilising mechanical methods.

Advantages

  • Good dimensional accuracy
  • Smoother cast surface finish than sand casting
  • Improved mechanical properties compared to sand casting
  • Thinner walls can be cast compared to sand casting
  • Reverse draft internal pockets and forms can be cast in using preformed sand core inserts
  • Steel pins and inserts can be cast in to the part
  • Faster production times compared to other processes.
  • Once the tolling is proven, the product quality is very repeatable.
  • Outsourced Tooling setup costs can be lower than sand casting.

Gravity Casting Parts

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