Generally, the material properties of the cast copper p […]
Generally, the material properties of the cast copper parts are very hard and are not prone to breakage, and some users feel that they can no longer be used after the castings are broken, and can only be discarded. But in fact, in the face of this situation, you can re-bond with a professional repair agent. For example:
1. Professional surface treatment of the repairing agent: remove the loose material on the surface of the cast copper piece, sanding it with sandblasting, electric grinding wheel, wire brush or coarse sandpaper to improve the roughness of the repaired surface, and wipe it with acetone cleaning agent to clean the surface.
2. Professional repairing agent: The repairing agent is composed of two components of A and B. When used, the main agent A and the curing agent B are thoroughly mixed to a uniform color according to the prescribed mixing ratio, and the specified usable time is used. After use inside, the remaining glue can not be reused.
3. Professional repairing agent Apply the mixed repairing agent to the surface of the treated substrate. When applying, apply uniform force and repeatedly press to ensure that the material is in full contact with the surface of the base of the cast copper part to achieve better results. When multiple layers of glue are required, the original glued surface should be treated before application.
4. Professional repairing agent can prolong the curing time when the temperature is lower than 25 °C. When the temperature is lower than 15 °C, use appropriate heat source for heating (infrared, electric furnace, etc.), but it can not directly contact the cast copper when heating. For the repaired part, the correct operation is that the heat source is 40 cm or more away from the repaired surface, and maintained at 60 to 80 ° C for 2 to 3 hours.
However, after re-bonding the cast copper parts with a professional repair agent, it is necessary to make a layer of protection on the surface of the casting to ensure the internal bonding effect, so that the casting can continue using as if it had not broken.