What are the reasons for the
115*1*22cutting disc? I will give you a summary today.
1. The hardening temperature is low, or toohigh: mainly when the temperature and humidity suddenly change greatly, and the
fluctuation of the relevant technical indicators of the raw materials
simultaneously reaches the conditions required for the resin cutting wheel
film. The hardening is low, which refers to the environment and raw materials.
Double impact, when the season alternates or the temperature and humidity
change significantly, the highest hardening temperature of the resin grinding
wheel should be provided in time. The hardening is high, which means that the
hardening curve has been adjusted, but when the stability is happy, the weather
is dry and not lowered in time. Hardening is stable, it is also easy to cause
the grinding wheel film.
2. The time of the hardening curve isshort: this mainly means that under certain conditions, the low-temperature
drying time of the hardening curve is short, and the heating rate is too fast
in the heating stage.
3. The furnace or the kiln is too urgent orthe temperature difference is too large: due to the resin cutting wheel,
especially the grinding wheel with large diameter, there should be a certain
cooling period at the end of the hardening and heat preservation to meet the
uniform release of the stress of the resin cutting wheel; If the temperature is
too high or the temperature difference changes too much, the cooling changes of
the grinding wheel will not be synchronized, so the deformation of the grinding
wheel will appear.
4. Hardening furnace kiln eliminateshardening humid atmosphere problem: All hardening furnaces, whether box furnace
or tunnel kiln, must consider intake and exhaust when designing the kiln. Due
to the large amount of exhaust gas released during the hardening of the resin
grinding wheel ( Mainly only ammonia gas, water vapor), if these exhaust gases
can not be discharged in time, it will be re-adsorbed by the pores of the resin
grinding wheel during the cooling process of the grinding wheel, so the
grinding wheel will be smelly and soft.
