The Non-Ferrous Casting Plant (ZLC, located on the territory of the Nizhny Novgorod Automobile Plant) has improved the quality of "Gazelle" Evotech gasoline engines. For this purpose, an automated die casting complex (into a metal mold) was launched at the enterprise.
Thanks to the new equipment, Evotech engines are fully provided with high-quality components, and its capacity allows, if necessary, to produce castings for other engines of this class.
Shrinkage casting inconsistencies are an important problem in the manufacture of cylinder block castings for engines, occurring in the so-called "profit" — the upper part of the workpiece, which is cut off after casting and sent for remelting. At the junction of the future part and the profit, a boundary zone is formed where defects can occur that affect the quality of the final product.
We have changed the technology so that the most important surface of the head, which adjoins the cylinder block and to which particularly high requirements are imposed for cleanliness and tightness, does not fall into this zone. Now it is located at the bottom of the casting, which insures against inconsistencies.
The second important step towards improving the quality of foundry products was the introduction of a water cooling system for dies. Each die (metal mold) is now equipped with seven circuits with automatic temperature control and monitoring systems. This allows you to optimize the metal crystallization process.
The casting process has become as automated as possible. It is enough for the operator to install the rods in the dies before pouring, and all other operations are performed by robots.
The system also incorporates quality control elements that protect against errors. For example, if the metal temperature does not meet the established technological requirements, pouring will not occur, which prevents defects.
Thanks to the new equipment, Evotech engines are fully provided with high-quality components, and its capacity allows, if necessary, to produce castings for other motors of this class.
Earlier, www1.ru reported that testing of the new YaMZ-770 diesel engine — 620 "horses" and 6 cylinders has started.
Read materials on the topic:
YaMZ presented new engines — YaMZ-770 diesel and YaMZ-537 CNG gas
Tutaev Motor Plant tested a high-power engine as part of a combine harvester
The most frost-resistant hydrogen engine in the world was developed in Russia
