From raw materials to finished product, a Longquan sword must go through five core processes: hammering, planing, polishing, inlaying, and quenching. From the early iron sword, it evolved into steel sword and folding pattern steel sword.
Beating: Put the iron block in a furnace and heat it to a high temperature, then repeat the carburizing process for many times to form the best prototype of the sword.
Planing and filing: Use a steel knife to sharpen and file the sword so that the thickness of the sword body is moderate, and there is a certain slope between the sword spine and the blade. The sword spine must be in the center of the sword body and form a straight line.
Polishing: Place the filed sword on a stone and polish it. Grind coarsely first, then finely.
Inlay: After polishing, a steel needle is used to engrave the pattern, sword name, and store number on the sword body, and then inlay the sword with red copper. After polishing, the sword becomes golden, creating a color contrast and giving it a sense of aura and treasure.
Quenching: The traditional quenching method is used to make the sword hard and soft. This is a high-precision craft that cannot be mastered by ordinary craftsmen.
In ancient China, steel and its technology were made by repeatedly folding, forging and deforming fried steel.
It is characterized by repeated heating and forging. Repeated forging can eliminate inclusions in the steel and reduce the size of the remaining inclusions, thereby making the composition more uniform, the structure becoming denser, the grains refined, and the performance of the steel improved.
Ancient craftsmen heated and forged "fine iron" more than a hundred times, weighing and weighing each time until the weight did not decrease, that is, hundreds of steelmaking.
Beating: Put the iron block in a furnace and heat it to a high temperature, then repeat the carburizing process for many times to form the best prototype of the sword.
Planing and filing: Use a steel knife to sharpen and file the sword so that the thickness of the sword body is moderate, and there is a certain slope between the sword spine and the blade. The sword spine must be in the center of the sword body and form a straight line.
Polishing: Place the filed sword on a stone and polish it. Grind coarsely first, then finely.
Inlay: After polishing, a steel needle is used to engrave the pattern, sword name, and store number on the sword body, and then inlay the sword with red copper. After polishing, the sword becomes golden, creating a color contrast and giving it a sense of aura and treasure.
Quenching: The traditional quenching method is used to make the sword hard and soft. This is a high-precision craft that cannot be mastered by ordinary craftsmen.
In ancient China, steel and its technology were made by repeatedly folding, forging and deforming fried steel.
It is characterized by repeated heating and forging. Repeated forging can eliminate inclusions in the steel and reduce the size of the remaining inclusions, thereby making the composition more uniform, the structure becoming denser, the grains refined, and the performance of the steel improved.
Ancient craftsmen heated and forged "fine iron" more than a hundred times, weighing and weighing each time until the weight did not decrease, that is, hundreds of steelmaking.