Technology for manufacturing embedded type solid self-lubricating plunger

Abstract

The invention discloses a method for manufacturing an embedded type solid self-lubricating plunger, and relates to the technical field of metallurgical equipment accessories. The embedded type solid self-lubricating plunger is composed of a plunger body and solid self-lubricating particles. Round holes are evenly distributed in the surface of the plunger body; the solid self-lubricating particles are embedded into the round holes in the surface of the plunger body; the plunger body is made of single-alloy steel or a double-layer composite base body, and the evenly-distributed round holes are machined in the working face of the plunger body. The sold self-lubricating particles are made of self-lubricating materials with the self-lubricating functions; many tidy holes are formed inside the particles; and the plunger has the self-lubricating function and the function of storing lubricating agents. According to the plunger, normal operation of a machine can be ensured under the poor working conditions such as the high-temperature condition, the dustiness condition, the condition in which the plunger is inconvenient to replace and maintain, and the condition in which oil is not easily added for lubrication. The method can be widely applied to industries such as metallurgy and cement.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment accessories, in particular to a solid self-lubricating column sliding plunger suitable for expansion and contraction in various metallurgical equipment and mechanical expansion and contraction shaft winding shafts. Background technique [0002] A sliding plunger is installed in the coiling shaft of metallurgical equipment or the expansion and contraction shaft of the stretch bending straightening machine. By applying pressure to the sliding plunger, the expansion and contraction device is pushed out along the radial position of the expansion and contraction shaft to achieve the expansion and contraction of the expansion and contraction shaft. The maximum requirement is to cancel the pressure of the sliding plunger, and the expansion and contraction device drives the sliding plunger to reset under the action of the return spring to meet the requirement of retracting the expansion and...

AI Technical Summary

Problems solved by technology

In an action cycle, the sliding plunger makes a reciprocating movement along its axial direction. Since the sliding plunger needs to be filled with grease regularly inside the expansion and contraction shaft, once the grease is not filled in time, the sliding plunger will not be effective. The lubrication of the sliding plunger will cause the working surface of the sliding plunger to be dry, which will make the expansion and contraction device of the expansion and contraction shaft unable to work stably, and accelerate the wear of the working surface of the expansion and contraction device. In severe cases, the phenomenon of seizure will occur and damage the expansion and contraction device

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