& nbsp; & nbsp; HY115 high-temperature repair agent is widely used in the bonding, sealing, and repair of oil, steam, acid, alkali, and pipeline joints under high-temperature conditions such as petrochemicals and electricity. It is also used for repairing wear, scratches, corrosion, and rupture of high-temperature equipment, such as sealing of high-temperature and high-pressure pumps, flanges, engine cylinder blocks, etc< br />


  & nbsp; & nbsp; Surface treatment

  & nbsp; & nbsp; Before heating, the cylinder body workpiece should be treated to remove loose substances on the surface of the substrate. Sandblasting, electric grinding wheel, wire brush or coarse sandpaper should be used to polish until the cylinder body is in its natural color. The cylinder liner should be inserted and removed easily by hand to improve the roughness of the repaired surface. Then use a cleaning agent or acetone, alcohol, etc. to wipe the area to be repaired clean, and use a cotton swab to wipe it without any oil stains or black impurities.
nine hundred
  & nbsp; & nbsp; Heating the parts to be repaired

  & nbsp; & nbsp; Requirement 25° When using HR-8757 high-temperature repair agent A and B components in a volume ratio above C, strictly mix, stir, and compact the main agent A and curing agent B according to the specified mixing ratio, so that the mixed adhesive is smooth, the stripes disappear, and the color is consistent. And use it up within the specified usable time, the remaining glue cannot be reused; (Winter repair agents will solidify and harden when they are cold. Before mixing, heat them with an electric furnace, iodine tungsten lamp, hair dryer, etc. until they become soft. Do not use flames to directly heat them. Be careful not to mix impurities.)
nine hundred and one
  & nbsp; & nbsp; Glue coating

  & nbsp; & nbsp; Apply the mixed repair agent onto the surface of the treated substrate, applying even force and repeatedly pressing to ensure full contact between the material and the substrate surface, filling the gaps and eliminating air to achieve the desired effect. When multiple layers of adhesive are required, the original adhesive surface should be treated before application;
nine hundred and two
  & nbsp; & nbsp; Curing

???????  & nbsp; & nbsp; Maintain the cylinder body at 25-40 degrees Celsius; C， Allow the A and B components to undergo a preliminary chemical reaction and cure for about 1 hour. Before the adhesive hardens, gently push in the dry cylinder liner and wipe the repair agent squeezed out of the liner clean. (When the temperature is below 25 ℃, the curing time can be appropriately extended. When the temperature is below 15 ℃, use an appropriate heat source (infrared, electric furnace, etc.) for heating, but do not directly contact the repair area during heating. The correct operation is to keep the heat source 40cm or more away from the repair surface and maintain it at 60-80 ℃ for 2-3 hours to cure the HY115 high-temperature repair agent and firmly bond it to the base material of the repair area.)< br />