Aging treatment method for accurate die-cast cylinder body of auto air-condition compressor

The invention discloses an aging treatment method for an accurate die-cast cylinder body of an auto air-condition compressor. The aging treatment method comprises the following steps of 1 solution hardening, wherein the compressor cylinder body formed through accurate die casting is subjected to solution hardening; 2 natural aging treatment, wherein the hardened compressor cylinder body stands for 2-26 hours at the room temperature; and 3 artificial aging treatment, wherein the compressor cylinder body subjected to natural aging treatment is put into a box type furnace with the temperature ranging from 175 DEG C to 215 DEG C for heat preservation for 3-9 hours. By means of the aging treatment method, the cylinder body is high in hardness, and the work efficiency is high.