Is it annealing to strike while the iron is hot?

Not annealing. Burning red is to make forging easier and prevent iron from breaking. Annealing is a kind of metal heat treatment process, which means that the metal is slowly heated to a certain temperature, kept for enough time, and then cooled at an appropriate speed. The purpose is to reduce hardness and improve machinability; Reduce residual stress, stabilize size, reduce deformation and crack tendency; Refine grain, adjust structure and eliminate structural defects. Accurately speaking, annealing is a heat treatment process for materials, including metallic materials and nonmetallic materials. Moreover, the annealing purpose of new materials is similar to that of traditional metal annealing.

Extended data

There is a big stove while the iron is hot in the middle of the room, and there is a bellows beside the stove. As soon as the bellows is pulled, the wind enters the furnace, and the flame in the furnace soars into the sky. The iron to be forged is first red-hot in the furnace, and then moved to the big iron pier. The master holds the main hammer and the sledgehammer for forging. Experienced hands-on, with a small hammer in his right hand and iron tongs in his left. In the process of forging, manual work should constantly turn the iron material through visual inspection, so that the square iron block becomes a round iron bar or the thick iron bar becomes a slender iron bar.

It can be said that in the hands of the old blacksmith, the hard iron can be square, round, long, flat and pointed. Iron products include farm tools, such as plows, rakes, hoes, picks and sickles, as well as some daily necessities, such as kitchen knives, shovels, planers and scissors, as well as knockers, foam nails and door bolts.