6 CYLINDER ENGINE BLOCK GENUINE DONGFENG DCI11 DIESEL ENGINE CYLINDER BLOCK PERFORMANCE ENGINE BLOCKS

High strength is a particular concern in diesel engines, since compression ratios are normally 17.0:1 or higher compared to about 10.0:1 for conventional engines. , and thermal conductivity . Good machinability and castability of the metal alloy are also important factors in selecting the proper material, as the harder it is to machine the product, the higher the costs of manufacturing. In addition to the previously mentioned properties, the alloys must possess good vibration damping to absorb the vibrations of the moving parts.

METALS USED IN THE MANUFACTURE OF THE CYLINDER BLOCKS:

Based on the functional requirements of the cylinder block and the material properties required to meet the functional requirements, industries have used cast iron and aluminum alloys to manufacture the blocks.

EXISTING MATERIALS:

1)Cast iron alloys are used because of the combination of good mechanical properties, low cost, and availability.

2)Certain aluminum alloys combine the characteristics of iron alloys with low weight, thereby making the material more attractive to manufacturers who are seeking a competitive edge.

NEW MATERIALS:

3)Compacted graphite cast iron is lighter and stronger than gray cast iron, making the alloy a more attractive alternative to the latter in the production of cylinder blocks, particularly in diesel engines.

4)Magnesium alloys, which were previously unsuited for use as an engine block material, have the advantage of being the lightest of all the mentioned metals, yet still retains the required strength demanded by a block.

1)GRAY CAST IRON ALLOYS:

Gray cast iron alloy have been the dominant metal that was used to manufacture conventional gas-powered engine blocks. Though extensive use of aluminum alloys has minimized the popularity of this material, it still finds wide use in diesel-fueled blocks, where the internal stresses are much higher. The use of cast iron blocks has been wide spread due to its low cost and good formability. Generally types of gray cast iron of pearlite microstructure is used in the manufacturing of engine block.

Hubei Lianzhong Industrial Co., Ltd was established in 1998, covering an area of 16,666 square meters,and have built an 2,500 square meters office building and 9,000 square meters workshop.

Main products include Diesel Engine,Transmission Gearbox,Axle and Spare parts, which are widely used for light, medium and heavy trucks, medium and high-grade intercity buses, large and medium-sized buses, construction machinery, marine propulsion and auxiliary engines, generator sets and other fields.
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