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Unique characteristics of the copper casting process

Update:19 Oct 2019
Summary:

Graphite copper sleeve lubricant sliding bearing, metal […]

Graphite copper sleeve lubricant sliding bearing, metal sleeve configuration in copper matrix developed friction surface, expected to be relieved in the appropriate size of the hole, and embedded molybdenum disulfide or graphite as a solid lubricant, with automotive product properties lubricant In the downward trend, solid lubricants are usually from 20 to 30% friction surfaces. The principle of the self-lubricating bearing lubrication of the sliding shaft and the bearing friction process, the graphite particles of the shaft and the bearing friction surface are expected to form a stable shaft separator of the solid lubricant layer is transferred to And bearings to prevent direct adhesion and wear.

Copper casting processing requirements:

1. The charged lower slot is plated for 5 minutes under the premise of shaking the workpiece with the impact current density, and then converted to the normal current density.

2. The actual surface area of ​​the cast copper part is many times larger than the calculated surface area. The impact current density during electroplating is about 3 times higher than that of the general parts, and the pre-plating time is also longer than the general parts.

3. When pre-casting parts, the parts should be shaken frequently with the hanging tools to ensure uniform color of the coating, and prevent the occurrence of speckles during silver plating to affect the appearance quality of the coating.

4. The cleaning of each process should be carried out to prevent the solution remaining in the pores from affecting the next process.

The long-term price of metal alloys and integrated non-metallic bearing materials complements the performance of the logistics industry, which is a high-load capacity metal, and the friction performance of the friction material obtained by the department is expected to be a copper sleeve, which is a reasonable combination.