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How to Repair the Abrasion of the Bearing Position of the Paper Machine Dryer

How to Repair the Abrasion of the Bearing Position of the Paper Machine Dryer

2022-12-23

With the country's continuous elimination and integration of some high-pollution and high-energy-consuming industries, a large number of industries with excess capacity began to gradually turn to large-scale. Facing the high-pressure situation of the national macro-control policy, the paper industry is not only facing the problem of environmental protection, but also the severe industry situation forces enterprises to work hard to reduce production costs and increase the added value of products. At present, the paper machines of domestic large-scale production enterprises are generally above 4800, which not only reduces the production cost but also reduces the waste of energy. But on the other hand, once there is a problem with the large-scale equipment of the enterprise, especially when it is worn out, it will have a major impact on the production of the enterprise and cause economic losses. It is currently the only effective and fast method to repair the wear of the cylindrical roller bearing position of the dryer cylinder of the paper machine by using Soleil carbon nanomaterial technology.


Under the condition of continuous high-load operation of the drying cylinder, the shaft journal often suffers from wear. The traditional repair methods are generally repair welding, brush plating or scrapping and replacing. Both repair welding and brush plating have certain disadvantages. For example, the thermal stress generated by repair welding can easily cause bearing damage or even deformation and fracture; the thickness of the brush plating coating is limited, and the application restrictions are relatively large. The environmental protection policy is relatively contradictory; if the equipment is scrapped and replaced, it will occupy a large amount of funds for the enterprise, and the order and replacement cycle will be long, which will affect the continuous production of the enterprise and bring serious economic losses to the enterprise.


Soleil's carbon nano-repair technology can efficiently repair the wear of the dryer journal on site, and at the same time greatly reduce the work intensity and maintenance cost. Soleil carbon nanopolymer repair technology is a relatively mature and cost-effective repair solution. Short time, low cost and good effect are the main characteristics of this technology. Soleil carbon nanopolymer technology is a high-performance epoxy two-component composite material reinforced by nano-inorganic materials and carbon nanotubes. The biggest advantage of this material is that it uses special nano-inorganic materials to bond with the oxygen of epoxy ring molecules to increase the bond force between molecules, thereby greatly improving the overall performance of the material, and can be well adhered to various metals, concrete, Glass, plastic, rubber and other materials. It has good high temperature resistance and chemical corrosion resistance. At the same time, good machining and wear resistance can serve the wear and reconstruction of metal parts.

1 Process the "tooling" according to the size and matching relationship of the worn part of the custom bearing, and determine the repair process and steps;


2 Empty test "tooling";


3 surface degreasing, rough, clean, dry treatment (sandblasting or grinding);


4 Brush SD7000 release agent on the inner surface of the tooling (easy to disassemble);


5 Strictly reconcile the Soleil SD7104 carbon nanomaterials in proportion;


6 Coating materials, installing "tooling";


7 After the material is solidified, disassemble the tooling and remove excess material;


8 Install the bearing according to the requirements, and fasten the position.


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