The wear of wear-resistant castings is divided into three periods. The first period is the first period, which is the running-in period. For new assemblies, the surface has roughness and geometrical deviations, the actual contact area between fittings is small, and the load per unit area is large. The oil film is not easy to maintain and the wear is relatively strong. After running-in according to the running-in specification, the surface condition is brought into a condition suitable for working conditions, and the wear speed is reduced.
The second period of wear of wear-resistant castings is the period of steady wear. In this case, the wear-resistance of wear-resistant castings increases in direct proportion to the working time, and it generally appears to be slow. However, when the use, maintenance is not careful, and the working conditions are relatively poor, the intensity of wear of the accessories may still be relatively large.
The third period of wear of the wear-resistant castings is the period of heavy wear. The wear-resistance of the wear-resistant castings is relatively large, the gap between the fittings is increased, the impact load is increased, the lubricant film is difficult to form, and the fittings are accelerated to wear. They should be promptly repaired or replaced. After that, when it comes to energy-saving and environmentally-friendly production methods for wear-resistant castings, this time, it will also adopt rapid melting technology, replace the rapid melting furnace, increase the number of induction coils, reform the lining thickness, expand the furnace volume, and accelerate the smelting rate. Reduce heat loss and achieve energy savings.
For energy-saving and environment-friendly production of wear-resistant castings, this time, it will adopt a bell-type resistance furnace with no door-to-door seal and full-fiber insulation lining, which will increase the heat treatment furnace and sealability and heat preservation effect. At the same time, the entire furnace will be used. The automatic PIC control automatically adjusts the operating power of the furnace throughout the heat treatment process, so that the heat treatment furnace is in the best working condition and energy waste is reduced.
The energy-saving and environmentally-friendly production of wear-resistant castings, that is, attention should be paid to the replacement of energy-saving transformers. If this is the case, the power of the transformer will also be increased. This will also be a good match for the melting furnace in different production processes. The voltage requirements for the phase, and in this respect, are to a large extent the energy savings that can be achieved in the smelting process.http://www.dmgcastings.com/