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How to deal with the surface problems of disc harrow?

How to deal with the surface problems of disc harrow?

Disc Harrow has absorbed the advantages of foreign advanced products of the same kind. According to standard design, the whole machine adopts combined structure, with Integral Rigid Harrow frame as the main body It is equipped with sealed rolling bearing with outer spherical surface and inner square hole for hydraulic lifting and transporting rubber wheel, spring leveling mechanism and disc Harrow Disc Harrow has the advantages of reasonable structure, strong and durable, convenient transportation, small turning radius, easy adjustment, maintenance and so on. Disc Harrow Plate is the main core components of disc Harrow, a disc harrow an important factor in the level of consolidation, the following we have a specific look at it:
1. Uneven hardness. During the deposition, the uneven thickness of the Disk Harrow by ten layers may cause the uneven hardness. The areas where the coating is hardened are usually caused by decarburization, where the operator penetrates the oxyacetylene flame center into the melted coating or where the inner flame center is 13:1 longer. The area of lower hardness of the deposited layer is usually the result of ten base metals mixed into the deposited layer.
2. Crack. The preheating temperature before the deposition is low, the process of the deposition is poorly controlled (the temperature drops too quickly) and the deposit is cooled rapidly after the deposition. Are Prone to crack in the deposited layer. Therefore, preheating and post-cooling before cladding is an important feature of ni-base cemented carbide oxyacetylene flame cladding. In addition, the Disk Harrow Operation Diagram, in the non-annealed parts of the quenching deposited also prone to cracks. If the cracks in the deposited layer have been extended to the base metal, they need to be completely removed with a grinding wheel (or by other mechanical processes) . Then according to the provisions of the process preheating, melting, slow cooling. If the crack does not extend to the base metal, the part can be reheated and melted to eliminate the crack.


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