A method for repairing the inner wall of a rubber product dryer cylinder

Abstract

The invention relates to a repairing method of the inner wall of a cylinder body of a rubber product drying machine. At first, a shearing screw hole plug is adopted for sealing a shearing screw through hole in the cylinder body of the drying machine, then cladding and machining of a base layer and a cladding layer are carried out, in the cladding process, a water cooling system is adopted for cooling, after cladding and machining are completed, then the shearing screw hole plug is drilled off, and the shearing screw through hole is reamed again. According to the repairing method of the inner wall of the cylinder body of the rubber product drying machine, the inner wall of the cylinder body of the rubber product drying machine can be repaired, the repairing method achieves heat deformation and heat stress control in the cladding process, the repairing size precision and mechanical performance of the inner wall of the cylinder body of the drying machine are ensured, and the abrasion resistance of the repaired inner wall of the cylinder body of the drying machine is far higher than that of an original base body of the inner wall of the cylinder body of the drying machine.

Description

technical field [0001] The invention relates to a cylinder of a dryer, in particular to a method for repairing the inner wall of a cylinder of a rubber product dryer. Background technique [0002] The operation of the barrel of the rubber product dryer is that there is a spiral sleeve in the inner hole to rotate, which plays the role of conveying rubber products. In the process of transporting rubber products, the inner wall of the dryer cylinder will inevitably be damaged. If things go on like this, scratches, deep grooves, fatigue layers, etc. will appear. After layering, the effect and efficiency of use will inevitably be affected, and the life of the dryer cylinder itself will also be affected. [0003] If you want to repair the dryer cylinder in the prior art, there are the following difficulties: [0004] 1. A large number of shear screws are designed on the cylinder of the dryer. During the operation of the cylinder of the dryer, these shear screws can bear the shea...

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Problems solved by technology

[0006] 3. During the cladding process of the inner wall of the dryer cylinder, the high temperature of the cladding will cause thermal deformation and thermal stress. However, it is difficult to control the thermal deformation and thermal stress, which will cause changes in the size and mechanical properties of the inner wall of the dryer cylinder, resulting in Thermal deformation and thermal stress will cause the dryer cylinder to be scrapped directly

[0007] In the existing technology, there is no solution to the above repair difficulties. After a certain degree of scratches, deep grooves, and fatigue layers appear on the cylinder of the rubber product dryer, the use of the cylinder can only be left alone. The use efficiency is reduced until the production needs cannot be met at all, and then discarded and replaced with a new dryer cylinder

However, the replacement cost of a new dryer cylinder is about 1 million, which is not conducive to cost saving for enterprises

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