Operation technology

1 Surface treatment:

This is a key step for successful repair, the repaired table should ensure that there is no oil, no water, no rust and no dust, and the surface should be coarsened as far as possible to increase the adhesive deposition. The parts requiring high repair strength should be buried by grinding or sandblasting. To show the color of the substrate. For some special conditions to carry out special treatment, such as casting defects containing oil or water, to be cleaned with flame barbecue; The table contaminated by chemical media is washed with hot water and then dried and sandblasted repeatedly. Repair of some axial or pore wear dimensions. Under the premise of ensuring sufficient strength, rough thread surfaces and dovetail grooves can be polished or turned, with a depth of more than lmm. To increase the mechanical bonding force.

2 Wash and dry:

Clean the polished watch with absorbent cotton dipped in acetone or sprinkling fine to remove the remaining oil, ensure that there is no oil, no water, no dirt. It is then dried in a short time.

3 Mixed supplements:

Casting defect repair agent is composed of two components A and B, and the two components A and B should be extracted respectively according to the prescribed mix ratio when used, and placed on a clean plate, fully stirred and evenly mixed. As long as the color is consistent. With the use, and within the specified time to use up.

4 Coating

Use a scraper or rubber knife to apply the mixture to the surface to be repaired. You can apply a little, press repeatedly with a scraper or a rubber knife, so that the repair agent and the base material are fully infiltrated, and then apply the remaining repair agent, leaving a surplus for processing. To repair the scratch of the guide rail, you should first apply a small amount of glue on the glued bottom. Slightly apply pressure, and then fill a lot: the engine and other thermal equipment cracks should be made V-shaped breaks, and the glue will be filled in, the effect is better than the plane brush.

5 Curing:

Cure at room temperature according to the specified working time. When the temperature is lower than 15℃, the curing time should be extended or the temperature should be increased, and the heating curing after the initial solidification can improve the coating performance. Under normal circumstances, 80 ~ 100℃ insulation for 3 hours, can obtain satisfactory results.

6 Post processing

After curing for a certain time, traditional machining methods can be used for milling, milling, grinding, drilling or tapping. To reach the required size. Most products can be machined after curing for 8-12 hours (25 ° C).

Note:

1 Avoid construction in low temperature and humid environment with temperature lower than 15℃ and humidity greater than 90%.

2 The surface of the construction machine should be kept as dry, clear and rough as possible.

3 The curing time and temperature must be guaranteed. If the temperature is below 15 ° C, appropriate heating measures should be taken.

4 Stick the repair to your hand or tool. Before curing, it can be cleaned with acetone, toluene and other solvents.

5 The industrial repair agent is a safe and non-toxic substance after curing. However, before mixing, the two components should try to avoid contact with the skin or eyes, if contact with eyes, should be quickly washed with water.