The master who was the forging came to forge steel. After watching it for half an hour, Yan Chengjin found that it was the same method as he saw in the Ministry of Works.

Maokui does not cast new furnaces.

Instead, use an old furnace to saw the opening and modify it according to the shape on the drawings.

However, there was one thing he couldn't understand.

"I dare to ask Lord Yan, what is oxygen?"

There is still a simple question to ask. I doubt your strength. Yan Chengjin said: "You hold your nose and can't hold it anymore. The air you inhale is oxygen."

Oxygen is extremely important for forged steel, so it needs to be told to Maoqu.

In addition, lime needs to be poured to remove impurities in pig iron, but it is not known how to set the material mouth and whether the process is correct.

Mao Ji's thatched hut was in the thatched hut in the aisle, "Mr. Yan, I just gave you two inkstones, why did I harm me so much?"

Follow Yan Chengjin in Liangxiang and wait for Yan Chengjin to fail in the future.

How could there be a good ending?

Yan Chengjin had not had time to read Mao Ji's book, but he didn't know that Mao Qu was Mao Ji's son.

"I don't know, Lord Mao should take the person back. This person is no longer an engineer in my Liangxiang."

Mao Ji's face looked a little better, and waved his hand, and several burly men rushed forward.

Mao Qu's face was pale and he was at a loss: "Father, Lord Yan is making steel, which is a blessing to the world."

"Do you know how much trouble you will cause in the future when you enter Liangxiang? Go back with me."

...

Huagai Hall.

Emperor Hongzhi was about to see the truth and was about to turn the memorials into pages. At this time, the civil servant walked in: "Your Majesty, the Minister of Works Mao Minutes to impeach Lord Yan."

Xiao Jing was shocked and he was immediately lost.

Emperor Hongzhi did not answer the memorial, and he read it in vain: "Why are you impeached?"

Mou Bin said: "Mao Qu, the son of Mr. Mao, was careless in making friends and accompanied his friends to take the engineer exam, and he even passed the exam."

"Just call Maoqu back, why bother impeaching me? Wasting my mind."

"Your Majesty doesn't know that Yan Chengjin wants Maoqu to use a furnace to make steel. Lord Mao thought it was Yan Chengjin's instigation, so this happened."

Steelmaking has always been forged by craftsmen.

When did steel be refined with a furnace? If it could be refined with a furnace, what is the silver worth?

There has been steel everywhere.

Emperor Hongzhi's face became solemn, and he turned around and stared at Mou Bin: "You said just now that Yan Chengjin wants to use a furnace to make steel?!"

"Yes, Your Majesty, it seems that it has not been done. Should I summon Lord Yan to ask?" Mou Bin said.

Emperor Hongzhi snorted: "Someone has tried it long ago. It can be refined with a stove, so why should I wait until today?"

...

Fangshan, a newly built straw shed.

Yan Chengjin stared at the huge stove, and it was very hot near the stove, especially in September, when it was still hot during the day.

Close to the stove, like a roast on fire.

The stove was poured over and put into the clay sculpture abrasive tool, and gradually formed. Yan Chengjin hurriedly said, "Let's see if it's iron or steel."

Song Jing picked up the long sword, cooled for a while, and waved it to the steel sword beside him.

With a click.

There is no doubt...

"Sir, it's iron."

Xie Pi said: "Maybe the process of this furnace is poor, and the casting of the feed port and air inlet port is unreasonable."

We need to renovate the furnace.

When making steel, the focus is not on making steel itself, but on the furnace.

As long as the process is correct and the furnace is made, the energy source will continue to produce steel.

The problem to be solved at the moment is how air enters and contacts with molten iron.

The high temperature caused the air in the furnace to run away.

If a hole is cast on the furnace wall or bottom, the molten iron will flow out along the hole.

...

A few days passed, Mao Mansion,

Maoqu was locked in the mansion and was not allowed to go out. During meals, he ordered Changsui: "Go and inquire, have the stove in Liangxiang been made?"

More than an hour later, Chang Suicai rushed back and said, "No, I heard from Engineer Wang that five furnaces failed."

Engineer Wang is named Wang Xu, and he is a good friend of Maoqu.

"Where is my dad?"

"The master said he wouldn't see you, so he asked you to stay in the house, and there was no need to take the college entrance examination."

Mao Ji asked Xie Qian and others about his experience that the safest way was to lock his son in the house.

As long as Yan Chengjin hasn't asked that sentence yet, there is still help.

After half a year, the kid stopped going to Liangxiang and let him go.

"Is that carved by my dad?"

After not returning to his house for a few days, Maoqu found a new object in the yard, which looked like a furnace and cauldron.

The lower part is round and the upper point is the hole of a teapot, and there are bamboo sticks on both sides, which can support both sides like arms.

Mao Qu pondered for a moment, and a light of inspiration flashed: "Go and get me a piece of wax and my father's carving knife."

Chang Sui carefully stole the master's carving knife and took more than a dozen large candles.

The Maoqu wrapped a layer of paper in the copper basin and poured in the melted candle.

A quarter of an hour later, it melted into a large ball of white wax and began to carve.

Forbidden City, Imperial Palace.

Emperor Hongzhi seemed to remember something and looked at Xiao Jing: "Has Yan Chengjin's steel been forged?"

"Report to Your Majesty, I have made five furnaces, but all of them have failed." Xiao Jing said in a low voice.

Li Dongyang and others had different expressions.

Steel cannot be forged in batches. No one knows this, and this guy is still so persistent.

"How have the military supervisors been built by Mao Qing's family?"

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"I am still thinking of a solution."

After the discussion in the Sandian Palace, he returned to the Ministry of Works' Office.

Mao Ji frowned and thought about how to get the expense of forging troops. "Your Majesty, you can't just shirk responsibility. I have been entrusting for five days. What are your good plans?"

"Why use futures first to raise money?" said Bo Wang, a doctor from the Ministry of Works.

Mao Ji and the ministers looked over.

Bo Wang continued: "When we cast troops, we will also cast some iron tools to sell them to the gentry, but the gentry needs to pay the bank."

The gentry paid the money and paid the craftsmen with wages and rations.

The raw materials can be re-smelted with weapons that are now rusted.

"There are many iron smelting plants in the market, how could the gentry have a rare iron tool?"

Mao Ji was a bad idea when he heard this.

It would be great if Yan Chengjin could train steel. The supply of steel was in short supply and it would definitely cause snatching the gentry.

But how could forged steel be so easy?

Until the time of the deposit, there was no way. Yu Yu returned to the mansion. Mao Ji asked the butler listlessly: "Have you been honest these two days?"

"I'm a little more honest, but today I asked Changsui to steal the master's carving knife."

Mao Ji's heart moved slightly. That was his second life, "Broken?"

This kid actually used my carving knife to vent his anger!

"No, carving the wax block."

As soon as the housekeeper finished speaking, he saw the eldest follower Zhengtang coming out and met Mao Ji, looking guilty.
To be continued...