Although Emperor Tianyou convicted Feng Wenlan and Kong Zhou of treason, his relatives and henchmen were taken into custody for separate trial, and he still took into account the feelings of the princes and ministers in the court, and did not mean to exterminate the entire Feng family.

Feng's side branch disciples and even Feng Wenlan's concubines may be relatively lightly implicated, but Feng Yi, Feng Yi, and Kong Xirong, as the sisters-in-law of Feng Kong, are very likely to still be guilty of serious crimes.

Even if they don't fabricate additional charges, in the end, one of them will probably be exiled or demoted to official slaves.

Feng Yi, Feng Yi, and Kong Xirong escaped from Jinling, Han Qian didn't think it was strange, but he thought to himself that the world was so big, where could they flee to?

They probably didn't even think that they would one day fall into such a situation, right?

However, after the Feng family took great pains to pick up Feng Yi and Kong Xirong from Lanting Lane, Han Qian didn't want to pay attention to it, Tian Cheng came over to talk about it, he just listened, looked up at the blue and cloudless evening sky, and sighed that the autumn was crisp and the weather was cool for a long time, so he turned over and got on the horse, and under the escort of Zhao Wuji, Xi Fa'er and others, galloped towards Donghua Gate in the sunset.

Back in the village, it was already dark, Han Qian ran to the forging room after dinner, and watched Chen Jitang lead the craftsmen to ponder the method of steel forging.

After more than half a month of trial furnace, the benefits of the new semi-closed chamber furnace are also being further explored.

Han Qian also confirmed from Chen Jitang's practice that the melting point of stainless steel is actually much higher than that of pig iron, and with the semi-closed chamber furnace currently built in the forging room, the pig iron block will soon be melted into molten iron, but a fine straight spine knife can only be burned red enough to be further hammered and forged after burning for half a day.

This is also the key reason why the forging of 100 steels is more difficult in the later stage.

Even Chen Jitang didn't understand what was going on, but for Han Qian, some of the knowledge gained from the dream realm, some vague places, suddenly became clear at this time.

This is obviously the difference in carbon content and impurity content, which determines the difference in the melting point of steel.

And if you don't want to go through years of forging to get a good piece of steel, then the key to saving effort and trouble is to continue to find ways to increase the furnace temperature.

In particular, the extremely high furnace temperature smelts the pig iron into molten iron, and when it continues to drum into the air, it can directly reduce the carbon content, and there is no need to forge and decarbonize, and it can smelt real wrought iron.

However, as a blade and iron armor, the lower the carbon content, the better, and the removal of impurities, decarbonization, and even the reverse of charcoaling, there are too many things to explore.

Every day, truckloads of charcoal and pig iron are transported into the forging room, and thousands or even tens of thousands of dollars of money and grain are consumed, but they cannot make a suitable good knife, and Chen Jitang and many craftsmen are also impatient. Han Qian always emphasized that he should be patient, put aside the old rules and customs, and explore and summarize little by little.

Han Qian also invested a lot of energy in this side at this time, as long as others were in the manor, most of the time was spent in the forging room, and his skin was also scorched red.

In the past two days, Chen Jitang and his team tried to replace the expensive charcoal with cheaper briquettes, but they found that the forged steel dropped more iron slag during forging.

Han Qian speculated that this may be due to the fact that other impurities in the briquettes entered the molten iron or steel bars during smelting, making them brittle, showing that the iron slag increased during forging.

When Han Qian asked Chen Jitang to test the same conditions with charcoal and briquettes today, when he went to the forging room, Chen Jitang told him to verify that the crude steel smelted by the briquettes was easier to break.

"It may be possible to make agricultural tools from the steel made from briquettes, but it is not possible to make swords and armor." At this time, Chen Jitang led the craftsmanship and construction in the courtyard, and the people became more confident and spoke much more neatly.

Pig iron cannot be used, because of the impurities, high carbon content, and brittleness, the steel made from briquettes is not highly modified, and it can be used to cast farm tools, but what Han Qian has the luxury of thinking is that it is still necessary to be able to mass-produce cheap and high-quality stainless steel armor pieces or steel components.

Although the consumption of charcoal for small-scale forged steel parts is not very extravagant, if it is large-scale iron smelting and steelmaking, the cost advantage of briquettes is too great.

What's more, the burning of charcoal requires a large amount of wood, which is no longer a problem of environmental protection and ecology, but the few remaining forests near Jinling City, which can withstand the major events of consumption for several years.

Han Qian squatted in the corner of the courtyard of the forging room, weighing a piece of briquette and a piece of charcoal in each hand.

Zhai Xinping, the person in the dream, is not from an engineering background, and at this time, it is really difficult for Han Qian to figure out what impurities are in this briquette and how to remove them.

At this time, Xi Ying led Xi Fa'er over, called Han Qian aside, and said, "There is a person who claims to be the Feng family's tribe, and he went to the village to find Guo Que'er at night, saying that he wanted to see the adult because of something. ”

Xi Fa'er and his father Xi Chang are the only few Xi clansmen who have close blood relatives with Xi Ying, and Xi Chang and Xi Yi's mother Gao Xi are cousins.

After Xi Chang and Xi Fa'er were ransomed, Han Qian initially asked them to command and train slave soldiers, and later served as the deputy commander of the Xuzhou battalion.

After the Xichuan War, most of the convicts returned to Xuzhou, and a small number of convicts were recruited as the Wuwei of the boat gang, and Xi Chang also joined the boat gang directly with Feng Xuan and worked with Yang Qin, but Xi Fa'er, who was two years older than Zhao Wuji, led some of the Xi teenagers who practiced the art of hidden ninja to stay by Han Qian's side as private soldiers.

At this time, the Feng family tribe was either detained in the prison of Dali Temple to await trial, or they had already fled Jinling, and suddenly someone claimed that the Feng family tribe ran over late at night, and Han Qian's brows were also slightly locked.

"I'm afraid that Feng Yi ran over and begged Gongzi to rescue?" Xi Ying said guessingly.

"What can I save him?" Han Qian rubbed his temples, soothing the swelling and sore temples, and said to Xi Fa'er, "Where is the person, has he been seen by others?" ”

"This person is quite capable, he touched into the village courtyard to find Guo Que'er, and our people didn't even notice it." Xi Fa'er said with some shame that he was responsible for the guard of the village tonight, and let people quietly touch the industry, which made him very uncomfortable.

Counting the days, Yang Qin and Xi Chang led the fleet to come from Xuzhou, and Lin Zongjing and Guo Nuer took some people to go to Runzhou to buy silk in advance.

Han Qian couldn't transfer Zuo Si's scouts and spies to the village for private use, and it was impossible to keep the manor currently inhabited by nearly 300 people with only a dozen guards led by Zhao Wuji and Xi Fa'er.

Although it is said that the manor is full of Han family's subordinates and slaves, it is also necessary to guard against people talking too much. Han Qian didn't want to alarm too many people, so he asked Xi Ying and Xi Fa'er to lead the way and go to Guo Que'er's recuperation.

Guo Que'er's parents were seriously ill with the epidemic, and after being incorporated into the cantonment military mansion, he died soon after, Guo Que'er learned martial arts roughly, was shrewd, and was the first to be selected by Han Qian to join the Zuo Division, and was also directly arranged to work in Fengfu.

After Feng Yi and Kong Xirong were picked up from Lanting Lane, they finally revealed some secrets they knew - after Feng Wenlan not only told Yin Peng about the whereabouts of Chun Shisanniang, he also imprisoned Guo Que'er and tortured him, wanting to know more secrets of the Junwang Mansion and Zuo Si as capital for self-preservation.

It wasn't until Feng Wenlan and Kong Zhou were placed under house arrest by Emperor Tianyou that the Feng family sent back Guo Qi'er, who had been tortured beyond recognition; In the past few days, Guo Que'er has been recuperating from her injuries in Yandang Jizhuang Courtyard.

Guo Que'er was approached by the Feng family when he went to the pond at night to relax, and he also knew that the matter was not trivial, so he took people to the courtyard where the guards lived to find Xi Fa'er to report the incident.

Han Qian walked into the house and saw a thin man with a stubble beard standing restlessly in front of the window, he pushed the door into the house, and the thin man was startled, it seems that he has been frightened a lot in the past two days.

"The villain Li rides a donkey, Lord Han can remember!" The thin man saw Xi Ying, Xi Fa'er and others standing behind Han Qian with a strong sense of vigilance, and he did not rush forward, but stood at the window and saluted and asked.

This thin man was Feng Wenlan's guard who was transferred to Feng Yi's side in the later period and restrained Feng Yi's actions, because he only obeyed Feng Wenlan's orders, Han Qian met him a few times, but he didn't say anything to him.

"You are so bold, the Feng family is extremely evil, they did not exterminate their clan, they are already Your Majesty's generosity, you don't think about your own faults, you don't atone for your sins, you dare to abscond out of the city, do you really think you can escape the net laid by Your Majesty? Come on, arrest and torture this dog minion, tonight is to beat out all his feces and urine, and you must torture the whereabouts of Feng Yi, Feng Yi, Kong Xirong and other criminals! Han Qian didn't have the heart to catch up with the visitor, stared at the thin man for a while, and directly ordered him to be detained.

Xi Fa'er and others rushed into the house like tigers and wolves, grabbed the thin man and pushed him down in the mud.

"Lord Han, Lord Han, we know that the Feng family is extremely evil, corrupt and pervert the law, and they really deserve to die. We have detained several of the Feng Yi brothers, and we are waiting to hand them over to Lord Han, so that Lord Han can send them to Dali Temple for trial! The thin man didn't expect Han Qian to disagree and let people push him directly to the damp mud, and hurriedly shouted.

Xi Ying glanced at Han Qian in surprise, he really didn't understand how he knew that this person was not sent by Feng Yi to ask for help, but grabbed Feng Yi, Feng Yi and others and rushed over to receive the reward?

"Oh," Han Qian stared at the thin man suspiciously, and said, "If you can understand the righteousness and assist the ministry to catch the criminal, it will be a meritorious service, maybe the ministry will have a great reward for you......"