Steel smelting is an introduction to steel smelting beyond this era, the book introduces in detail how to find coal mines, how to select refined coal, how to cast steel furnaces, and how to smelt steel.
In the steel smelting technique in the book, a sheet of pig iron is placed on a number of wrought iron sheets that are tightly bundled, so that the molten pig iron can penetrate into the wrought iron more evenly.
Instead of mud sealing, the mouth of the furnace is covered with mud-coated straw sandals, so that the pig iron can get oxygen from the air and melt more easily, thus improving the efficiency of smelting.
After the middle of the Ming Dynasty, the steel filling method was further developed into the Suzhou steel method, which used wrought iron as the material iron, placed in the furnace, and put the pig iron plate at the furnace mouth, when the furnace temperature rose to about 1300C, when the pig iron plate began to melt, the pig iron plate was clamped with tongs to move left and right, and the material iron was constantly turned over, so that the material iron was evenly poured into the pig iron liquid; In this way, it can not only produce a good carburizing effect, but also produce a violent oxidation effect, so that the iron and slag are separated, and the steel with less slag and uniform composition can be produced.
This steel-smelting technology has reached the level of at least the middle of the Ming Dynasty, although Gongsun Bai can't understand it, but Gongsun Bai believes that there will always be someone who understands it in this era.
The significance of this book is actually huge, after all, the number of materials produced by the system is limited, and Gongsun Bai has to do it himself, as the so-called teaching people to fish is better than teaching people to fish, this book of steel smelting is "fishing".
It's just that it takes a long time for the steel filling technique to take effect, so Gongsun Bai had to put it aside for the time being and start upgrading the armor system.
"Ding Dong, the material system is upgraded to level 8, the host obtains the title of the god of war, and is rewarded with 50,000 armor coins, 10,000 proficiency, and 2 level 8 material exchange coupons."
"Class 8 Material System Primary Material: Chromium Steel."
The time has finally come, chromium is the king of metal hardness, and the hardness of chromium steel is also extremely high.
Although the chromium steel of later generations is hard enough, but the toughness and elasticity are insufficient, and it is easy to curl or break, but after using the Sky Breaking Sword for so many years, this does not seem to be the case.
The chromium steel material of the 8-level system should have been improved in toughness and elasticity, which is by no means comparable to the nine-chromium steel commonly seen for kitchen knives.
The hardness of ordinary iron in this era is not more than HRC30 at most, while the hardness of steel filling should be above HRC35, the hardness of 100 steels is about HRC4550, and the hardness of chromium steel is usually around HRC55, so there is a saying that iron is like mud.
The only pity is that the grade 8 chrome steel material is subject to the same restrictions as the grade 7 100 steel material, and the restriction is ridiculous, limiting the forging of 2 weapons per day, and only the manufacture of weapons.
However, the time can be cumulative, for example, you can not use it for 30 days, and then make 60 weapons at once.
The purpose of the system's restriction is obvious, only generals and special troops such as White Horse Yicong can use chrome steel weapons, and not become cabbage like steel filling, and everyone has a handful.
Gongsun Bai immediately made a chrome steel war halberd.
Due to the rarity of chrome steel weapons, the system can customize the shape, Gongsun Bai asked the system to carve a flying dragon with teeth and claws on the body of the halberd, which can not only show the momentum of the war halberd, but also prevent the hand from slipping when holding the halberd.
With a crisp sound of ding dong, accompanied by a golden light, a chrome steel war halberd with a pole and a length of three zhang appeared in Gongsun Bai's hand, and in an instant, the air conditioning in the house was pressing, and the cold light was cold.
Gongsun Bai took out a pair of steel-filled fish scale battle armor and hung it on the wall, raised the war halberd and cracked, only to hear a click, the battle armor cracked in response, and the front and rear layers of steel armor were broken by the halberd blade, and even cracked into the wall for three points.
Sure enough, it is like clay Level 8 weapons: Damascus knife, Gurkha scimitar, Mongolian scimitar.
There has been a major breakthrough in the style of level 8 weapons, and all three weapons actually have a name: the scimitar shape conforms to the hydrodynamics of the scimitar, which is more suitable for crackling and slashing, and has made great achievements in the wars of later generations.
And the most suitable for cavalry combat, the most famous is undoubtedly the Mongolian scimitar.
At that time, the Mongolian scimitar created too many miracles, almost swept the entire Eurasian continent, and was invincible.
Because the scimitar is more mechanical, it does not require the soldier's own strength, and the impact of the horse alone can easily cut off the enemy's head.
When Genghis Khan swept across the Eurasian continent, he just put the scimitar on the side of the saddle, and the curved part of the blade stretched out long, and the part close to the blade was straight, so that he would not be injured by mistake, so that once he rushed into the enemy formation, it was easy to cut off the enemy's armor and also saved a lot of physical strength for the cavalry.
And the most important thing is that the scimitar made of 100 steel will be more able to play the scimitar.
Gongsun Bai did not hesitate at all, and immediately chose to customize a chrome steel Mongolian scimitar.
The sheathed knife, the black scabbard, the curved handle, the blade is green, green as a distant mountain, green as a spring tree, green as a lake in the eyes of lovers.
The green sword light, curved, seemed to be a crescent moon at the beginning, and suddenly turned into a flying rainbow, even if it was not unsheathed, it could reveal a compelling murderous aura.
The knife is engraved with a line of words "Xiaolou listens to the spring rain all night", of course, this line of words has no meaning, purely to remember the martial arts feelings of the previous life.
With a halberd in one hand and a scimitar in the other, Gongsun Bai instantly felt that his whole body seemed to be gushing with infinite strength and blood, and he couldn't wait to immediately step on the sweaty and bloody horse, charge into battle, and kill the enemy's main general among thousands of troops and horses.
Level 8 armor: cotton armor, paper armor.
Gongsun Bai couldn't help but be stunned.
The armor made of paper and cotton can be better than the steel-filled armor When he made a pair of paper armor and cotton armor, he finally understood.
The surface of the paper armor is made of juan cloth and paper, wrapped in three-centimeter-thick paper and hanging, and the iron sheet is inside.
Such paper armor can not only resist bows and arrows, but also has a slightly inferior defense against crackling and slashing, and is not inferior to ordinary iron armor in any way, but its durability is worse than that of iron armor.
Of course, if you face the Divine Arm Crossbow, it is naturally useless, but in the face of the arrows of Jiangnan and Jiangdong, it is more than enough.
In fact, paper armor was mostly used by soldiers in the south, especially because it was light, so it was mostly used by warship sailors.
Paper armor mainly protects the upper body and lower body over the knees, considering that there are many swamps and paddy fields in the south, the length is adapted to local conditions, and it is probably the most suitable for the upcoming battle of Jiangnan.
The original production process of cotton armor is that the cotton is wet, repeatedly patted, and made into a very thin cotton sheet, and a number of such cotton sheets are embellished into a very thick and solid cotton cloth, and between the two layers of cotton cloth is an iron armor, which is fixed with copper nails inside and outside.
The defense of such cotton armor is not much weaker than that of iron armor, and it is extremely lightweight.
Although the defense of these two types of armor is a little worse than the steel armor and aluminum armor after all, and it is extremely undurable, but the materials can be found everywhere, and it is extremely lightweight, and it can be manufactured in batches, it only takes more than a month, after preparing enough cotton, paper, silk cloth and steel, hundreds of thousands of armors can be made, and the soldiers under his command can have a set of hands, and the defense of the entire Dayan army and horses can be improved.
Level 8 bow and crossbow system: Bean inch crossbow.
The Doucunzi crossbow is a powerful repeating crossbow, which is a type of three-bow bed crossbow in the Song Dynasty.
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It can fire more than ten arrows at a time to a thousand steps away, and it is also the cold weapon with the largest range, like a heavy machine gun.
But the most inconsistency thing about this kind of bed crossbow is that it takes more than 75 to 100 people to twist it with ropes and borrow the power of machinery.
This is a very powerful weapon, but for Gongsun Bai, this kind of crossbow is of little significance, especially with a tun person to open the crossbow, unless it is besieged by people, and then erected on the city wall, taking advantage of the enemy's unpreparedness, raiding the enemy commander seven or eight hundred steps away, the actual combat effect is extremely low.
Level 8 equipment: Flying Tiger Battleship, Sea Falcon Ship.
Seeing this, Gongsun Bai couldn't help but be in good spirits.
When it comes to the battle of the flat land, Gongsun Bai's soldiers and horses are already the strongest division in the world, and there is no one.
The land of the ten states north of the Yangtze River is in the hands of Gongsun Bai, such as today, only the land of Jiangnan, Jiangdong, Jiaozhou and Yizhou is not flat.
The land south of the Yangtze River and the east of the river, the rivers and lakes are crisscrossed, and the advantages of war horses here are greatly limited, and if you want to conquer the southern land, you still rely on water warfare.
In terms of water warfare, it is Gongsun Bai's disadvantage, not to mention that it is too far from the Jiangdong Naval Army, but it is much worse than the Jingzhou Naval Army.
Above the rivers and lakes, the comparison is the ship, crossbow arrows and water warfare experience, water warfare experience, the landlubbers in the north are naturally not as good as those Jiangnan people who have been begging for a life on the rivers and lakes for a long time, but the crossbow arrows of the Yan army are unparalleled in the world, if you talk about the real shipbuilding technology, I am afraid it will be 108,000 miles apart, but now the systematic shipbuilding technology is far beyond the Jiangnan and even Jiangdong, which makes Gongsun Bai's confidence greatly increased.
The Flying Tiger Battleship is a kind of warship that appeared in the Southern Song Dynasty, and Gongsun Bai has also heard about it in his previous life.
This is a kind of small warship using oars, the ship is equipped with four oars, each oar has eight blades, four people step on the chop, travel thousands of miles a day, more conducive to actual combat.
This kind of battleship is much faster and more solid than the warship, and it is completely the killer of the warship, and it is naturally much more flexible and fast than the fighting ship.
As for the sea falcon ship, it is said to be a kind of open sea warship, and the system information is as follows: The shape of the sea ship suitable for open sea warfare is different from that of inland warships, "the front is high and the back is low, the front is large and the back is small, like the shape of a falcon."
The boat is placed on the left and right of the floating board, shaped like the wings of the falcon to help its ship, although the wind and waves are angry and there is no side overturning, the back is made of raw cowhide for the city, and the tooth flag and golden drum are as usual."
It seems that the battle in the open sea is still a little farther away, but sooner or later it will come.
In general, the level 8 system also brought a huge surprise to Gongsun Bai, the only regret was that the medicine bomb system failed to upgrade to level 4, and the grenade he dreamed of failed to appear.
Just after Gongsun Bai finished upgrading the system at all levels, and checked the new armor at all levels, and was about to take a break, suddenly a strange situation on the system attracted his attention.
The firearms system, which had always been gray, actually lit up bang Soon after, a loud bang came from inside the Deyang Palace.
To be continued
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