Epoxy Resin Adhesives
Epoxy resin adhesive has excellent bonding properties, which can firmly bond the copper bushing to the surrounding components. The high strength of this type of adhesive can withstand certain shear and tensile forces, effectively preventing the copper bushing from shifting during the working process.
Moreover, the epoxy resin adhesive has a small shrinkage rate after curing, which means that the copper bushing will not shrink significantly in volume during the curing process and cause gaps or loosening in the bond. At the same time, it also has good chemical resistance and electrical insulation, can adapt to a variety of working environments. For example, in some equipment with the presence of chemical media, the use of epoxy resin adhesive fixed copper bushing, can avoid the adhesive corrosion and failure.
Anaerobic adhesive
Anaerobic adhesive is a kind of adhesive that can be cured under the condition of no oxygen. When the anaerobic adhesive is filled into the groove of the copper bushing and isolated from air, it undergoes a curing reaction. The curing speed of this type of adhesive can be adjusted according to different types and additives for easy handling.
The advantage of anaerobic adhesive is that it can fill tiny gaps and form a tight bond. And it has good sealing properties to prevent liquid or gas leakage. In some occasions with high requirements for sealing, such as hydraulic equipment or mechanical components with gas tightness requirements, the use of anaerobic adhesive to fix copper bushings is a good choice.
Tin-based alloys (pasteurized alloys)
Tin-based alloy has good wear resistance and friction reduction. In some special application scenarios, filling the groove of copper bushing with tin-based alloy can play the role of fixing the copper bushing, and at the same time, it can also provide a better working surface for the copper bushing.
For example, in some heavy-duty, low-speed bearing applications, the tin-based alloy is poured around the grooves of the copper bushing. When the tin-based alloy solidifies, it can firmly fix the copper bushing, and when the shaft and the copper bushing are moving relative to each other, the tin-based alloy can reduce the friction and wear, and prolong the service life of the copper bushing and the shaft.
Copper alloy powder sintered material
For applications requiring high strength and wear resistance, copper alloy powder sintered material can be used to fill the grooves of the bushing. This is done by mixing copper alloy powder with a suitable binder and then sintering the material at a certain temperature and pressure.
This material has good material compatibility with the copper bushing itself and can form a tight bond. And because of its high strength and abrasion resistance, it can effectively protect the copper bushing from being damaged by external factors during the working process, and at the same time ensure the fixing effect of the copper bushing.
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