After the forging method of cold forged armor is successfully cracked, production can begin.

Li Mengxi selected a hundred craftsmen, all of whom had no experience in cold forging. Li Mengxi strictly required the cold forging process, and he required all craftsmen to follow the steps.

The steps of cold forging, the first step, the nail plate should be placed horizontally in front of the body, the second step, when forging, first hit it horizontally, then hit it vertically, then hit it horizontally, then hit it vertically, alternately.

Beating, the third step, after the front side is forged, the back side also needs to be forged.

While the craftsmen were forging in their respective workstations, there were soldiers wandering around. If they saw anyone not doing what was required, they would immediately stop them.

As the production of cold forged armor started, a quality inspection system also came into being.

Thanks to the method created before to test the quality of cold forging, the quality inspection method of cold forged nails has also been developed, using the volume measurement method. It is known that the more fully the nail pieces are cold forged, the thinner the nail pieces will be and the smaller the volume will be.

Small, you can tell whether the armor piece is well forged or not by putting it in water.

The specific quality inspection method is to put hundreds of forged iron pieces and hundreds of unforged iron pieces into the same volume of water. It is required that the difference in displacement between the two must be at least 30 milliliters of water.

Under this quality inspection system, there is no room for falsehood. As long as the forging is not enough, the armor pieces will definitely not be thin enough and will not meet the standards when measured.

Relying on this set of volumetric weighing methods, the quality of nail pads can be basically guaranteed.

Many days later, with hundreds of craftsmen busy for days, some armor pieces were forged. Statistics on the yield rate of the armor pieces showed that the yield rate was close to 45%.

You know, when craftsmen used to cold forge, the finished product rate was only 1/20, but this time the finished product rate has doubled.

It can be seen that the previous research on forging strategies is useful, and a good forging strategy can really greatly improve production efficiency.

Not only did the yield rate double, Li Mengxi also found that the efficiency had also improved. In the past, when novices forged armor plates, they could forge two or three armor plates in one hour. Now, they can forge five to six armor plates in one hour.

, the efficiency increases by more than 50%.

Including the improvement in yield, the production efficiency of cold forged nail plates has been directly increased by 2.5 times.

In the past, to make a set of cold-forged armor, the material consumption alone would cost ten sets of ordinary iron armor. Now the efficiency has increased by 2.5 times, which is equivalent to one set of cold-forged armor, and the cost is only equivalent to four sets of ordinary iron armor. The price-performance ratio has finally reached an acceptable level.

Acceptable level.

The number of pieces of armor handed over by the craftsmen reached more than 300 pieces. Li Mengxi asked the armor craftsman to weave the pieces into a set of basin-collar breastplates and gave them to Lu Zhi.

This was the first set of cold-forged armor made in the army. Everyone had long heard Li Mengxi praise the miraculous defensive capabilities of the cold-forged armor. When the armor was ready, everyone was extremely curious and put it to the test.

During the test, two types of iron armor were used, one was ordinary heavy iron armor, and the other was cold forged armor. Ordinary iron armor was heavier, while cold forged armor was much lighter. After repeated tests with swords, guns and bows, the defensive power of cold forged armor was found.

The advantages are clearly demonstrated.

At fifty steps, the big yellow crossbow fired directly. The ordinary iron armor was hit, and the armor was severely deformed. Occasionally, arrows missed through the seams of the armor and were nailed to the target. But when the cold-forged armor was shot directly by the fifty-step crossbow, the arrows missed.

It was bounced away. When I checked the location where it was hit, I saw only a slight dent on a certain armor plate, but it was generally intact.

Lu Zhi marveled at the astonishing defensive power of the cold forged armor. He fired twenty shots with a powerful crossbow and missed all nineteen of them. The only arrow that penetrated the armor was missed because it happened to hit the armor.

On the hole, the cold-forged armor hole was slightly torn, but the iron of the arrowhead was scraped and rolled up. The cold-forged armor piece is so hard.

Lu Zhi was overjoyed when he suddenly got the armor. He thanked Li Mengxi repeatedly. Li Mengxi was polite. All the swords and armor were delivered, and Liu Bei's commission was completed.

——

Li Mengxi calculated the cost of cold forging armor. When the craftsmen were not skilled in the technology, the cost of one set was equal to four sets of ordinary armor. Although the process has been improved and the cost has been reduced a lot, the price is still high.

The high price of cold-forged armor determines that this type of armor can only be used by elites.

A set of foot armor has more than 1,800 armor leaves, and the large foot armor has even more leaves.

Get a full set of cold-forged infantry armor for Guan Yu, another set for Zhang Fei, and another set for Liu Bei. Guan and Zhang are brave enough to be worthy of any man. They are accustomed to charging into battle, so they must have vests.

Guan Yu received a set of human and horse equipment, and Zhang Fei received a set of man and horse equipment. If a small-scale cavalry was formed, more armor would be needed.

The cold forged armor industry officially started. Li Mengxi assigned a hundred craftsmen to be responsible for cold forging. Regarding the quality inspection system of cold forging, there is a thorny issue. The quality inspection of cold forged armor pieces must be carried out by measuring the volume.

Inspection requires that all the nail base materials must be exactly the same. Only when the nail pieces with exactly the same thickness, thickness and size are sent to the cold forging craftsmen can we have an accurate measurement value to inspect the quality.

Otherwise, the nail pieces sent to the cold forging craftsmen would be larger and smaller, and the sizes of the nail pieces themselves would be very different, so there would be no way to use unified standards for measurement.

The only way to produce armor plates of the same specifications in large quantities is the casting method. However, the casting method can only use pig iron to produce it, and pig iron cannot be forged and will break as soon as it is forged. This is a dilemma.

The way to solve the problem is to either cast the armor pieces with molten steel, or instead of using the casting method, let the craftsmen use the forging method to make armor pieces of the same size and specifications.

Both methods are difficult to implement.

The melting point of wrought iron is extremely high, followed by the melting point of steel, and then pig iron. With coke, the temperature of the coke is enough to melt pig iron into molten iron, but even coke is not enough to directly produce liquid steel.

Unless the temperature is raised again and the temperature of coke is increased, coke is known to be the most powerful fuel, and Li Mengxi can't think of a way to increase the temperature for the time being.

In addition to the nail plate specifications, the difficulty in the quality inspection system also exists in the equipment.

Without precise transparent glass equipment, the measurement cannot be clearly seen at a glance, and it has to be complicated and troublesome.

Thinking of glass, Li Mengxi thought of the transparent lampshade that Jian Yong brought back.

The lampshade that Jian Yong brought back was the only thing that Li Mengxi had ever seen that was made of glass. Different from hard glass, the lampshade was soft, like glue. Could it really be gum? Li Mengxi

Very curious.

Anyway, there is a kind of resin glasses, and the resin can really be used as lenses.

So, what is the [resin] of this resin lens?
Chapter completed!