Take the warehouse back to the end of the Ming Dynasty

At this time, the molten glass is slightly cooled, and there is a lot of molten glass in the iron mold, so it is necessary to transfer it to other iron molds.

After the iron mold was burnt red, Wang Liuqi hurriedly clamped the iron mold with iron tongs, and quickly moved it to several iron molds next to him.

The iron grinding tools next to them are shallower than the previous iron grinding tools, about one centimeter deep.

After the transfer was complete, Wang Liuqi took down a shovel from the tool rack next to it.

Holding a shovel, he scraped the uneven glass liquid round and round along the edge of the iron abrasive.

After finishing all this, Wang Liuqi touched the sweat on his forehead and let out a sigh of relief, "Now it's time to wait for it to cool down."

Zhao Wen looked at the uncooled molten glass in the iron mold, and said with a smile, "I think it's almost done. Steward Wang, you deserve the most credit."

Wang Liuqi hastily cupped his hands and said, "Don't dare to do it, don't dare to do it, it's all thanks to the lord, it's all the lord's credit."

Zhao Wen said with a smile: "If you say you have credit, you will have credit. What's the point of dawdling. Okay, let's do this first. I still have something to do, so I'll go first."

Seeing that there was no problem here, Zhao Wen led Li Xiaosan away.

After walking not far, Zhao Wen said to Li Xiaosan beside him, "Go and find Zhao Daniu for me."

Zhao Wen looked at Li Xiaosan who left in a hurry, squatting under a big tree beside the road.

The sunlight penetrates through the gaps in the branches and leaves of the big tree and falls under the big tree, forming white spots one after another.

Zhao Wen looked at the white spots on the ground and fell into deep thought.

Now glass has been successfully fired, but this thing is no better than cement.

Cement depends on production, while glass depends on rarity.

According to Zhao Wen's idea, the best use of these successfully produced glass is to make mirrors.

It is not that there are no mirrors in this era, but those mirrors are imported from the West.

Not to mention the small size, the figure is not clear, and the price is super expensive.A palm-sized mirror costs at least 100 taels of silver.

If the glass as big as today is made into a mirror, it may sell a lot.

Zhao Wen thought about making glass mirrors from the fired glass, and selling them in the capital or Nanzhili.

If the mirrors are sold in these places, they will definitely make a lot of money.

Especially the Lianghuai salt merchants, those people's net worth is not low, all of them have billions of dollars in wealth.If these mirrors are shipped to the Huaihe River for sale, they will definitely make a lot of money.

However, for things like mirrors, rare things are more expensive, and the rarer they are, the more valuable they are.Therefore, the recipe for making glass mirrors must be tightly held in one's own hands.

When Zhao Wen was considering whether to give Shanxi merchants a little to help them sell, Zhao Daniu stood in front of him.

Zhao Daniu looked at Zhao Wen who was deep in thought, and asked softly, "My lord? My lord?"

"Ah? Daniel, you are here." Zhao Wen hurriedly stood up from the ground.

"I don't know why my lord is looking for me?" Zhao Daniu looked at Zhao Wen curiously.

Zhao Wen clapped his hands and said to Zhao Daniu: "The glass kiln fired glass today, do you know?"

"Li Xiaosan told me on the way." Zhao Daniu said angrily.

"It's good to know, I have a task for you now, you can leave it to Hu Zi to handle the conscription first.

The most urgent task now is to find out the details of the helpers in the glass kiln.I don't want the golden hen in my hand to be stolen by others. " Zhao Wen said coldly.

Upon hearing this, Zhao Daniu immediately changed his expression, "My lord, don't worry, if you dare to steal our hens that can lay golden eggs, you are courting death. I, Zhao Daniu, will kill them first, so don't worry, my lord." , I will definitely find out the details of those people for you."

After Zhao Daniu finished speaking, he hurried away.

Zhao Wen looked at Zhao Daniu's back, and turned his thoughts to the way the mirror was made.

Glass mirror, there are two methods of electroless silver plating and vacuum evaporation, the most commonly used method is electroless silver plating.

This method is to dissolve silver nitrate in water, add ammonia water and sodium hydroxide solution and dilute it into silver hydroxide ammonia double salt to make a silver plating solution.Invert sugar or formaldehyde, sodium potassium tartrate solution is used as reducing solution.

Clean the glass surface, sensitize it with dilute stannous chloride solution, then wash it, then mix the silver plating solution and reducing solution and immediately impregnate the surface. After the mirror surface is formed, clean it, and then copper plating and protective paint can be applied.

In fact, in the West in this era, they mainly used mercury to make mirrors.

If mercury is used to make mirrors, the cost is too high, and the second is poisonous.

In addition, the reflection degree of the mirror made of mercury is not very high, and the figure inside looks very blurry.

And the mercury method manufacture procedure is loaded down with trivial details, and processing speed is slow, is not suitable for batch production.In terms of production speed, it is far inferior to the chemical silver plating method.

As for the vacuum method, it was directly abandoned by Zhao Wen.Can a vacuum be created in this day and age?

But the chemical reagents required by the electroless silver plating method are not rare. It is not so easy to manufacture qualified chemical reagents in this era.

In fact, in ancient times, it was not without chemical reagents. Many kinds of chemical reagents have been recorded in "Mengxi Bi Tan" by Shen Kuo in the Song Dynasty and "Tiangong Kaiwu" by Song Yingxing in the Ming Dynasty.

Among them are the reagents needed for the electroless silver plating method, but Zhao Wen doesn't know about these.

Now Zhao Wen's face was like a bitter gourd, his brows were furrowed and he was heading towards the defense mansion.

"In this era, there is sodium hydroxide, which is also commonly known as caustic soda. The reducing agent is glucose. After all, glucose is easy to fix.

But what about the ammonia water and silver nitrate? Zhao Wen frowned, thinking about the production methods of these two reagents.

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Chapter 83 The Shrewd Fan Zheng

"The local method of making ammonia seems to be made by adding plant ash to urine, then evaporating the gas, and then dissolving the generated gas in water. But it seems that nitrate mines can also be used.

Heating nitrate ore can also generate ammonia gas.At that time, ammonia gas can be passed through the water, and ammonia water can also be produced. Zhao Wen scratched his head and walked slowly on the main road of Longmen Fort.

"Silver nitrate can also be made from nitrate ore, but in a short while, where can I find nitrate? This thing is a controlled material by the imperial court."

Zhao Wen looked at the soldiers passing by from time to time in Longmen Fort, and suddenly found himself in trouble.

"Is it possible that I really need to use urine to make nitrate and ammonia?

It is made with urine, and the output is unstable. There are only so many people in the entire Longmen Fort, how many catties of nitrate can be produced in a day?This is not realistic.

Could it be that Fan Zheng had to be relied on?

Alas, forget it, let's find him, otherwise, I really don't know when this glass mirror will be made. "

Zhao Wenwen didn't want to rely on Fan Zheng for the glass mirror. After all, the cement factory had already lost a lot of money.

These Shanxi merchants all look like honest farmers on the outside, but they are all shrewd in their hearts.

Fan Zheng calculated that Zhao Wen had no cement market, so he asked Zhao Wen to sell all the cement he produced to himself.

The sales are not so good. The Fan family has been in business for hundreds of years, so there are so many sales.

If Zhao Wen is asked to go to the market, firstly, there is no time, and secondly, it will not be possible.

After all, cement can make money.But it doesn't have any technical content, so it's not guaranteed that it will be cracked by others at any time.

At that time, the price of cement will be lower.

In Zhao Wen's view, only the glass mirror is the most important thing.Although this thing has no technical content in later generations, it can be called a high-tech thing in this era.

Even if someone wants to decipher it, it is estimated that it will not be able to decipher it without decades of effort.

Compared with glass mirrors, the value of cement is a bit low.

Of course, selling all the cement to him is not without conditions.

Although when the cement factory was being built, Fan Zheng also gave Zhao Wenwan two taels of silver back and forth.

These money, including the money that was previously funded to Zhao Wen, does not need to be returned by Zhao Wen.

And when the cement factory is built and cement is officially produced, the cement factory can only be managed by Zhao Wen.Fan Zheng couldn't intervene.

Similarly, the cement produced can only be sold exclusively by Fan Zheng, and cannot be sold by himself or by others.

Originally, Zhao Wen was thinking about how much cement sales should be shared with Fan Zheng, but Fan Zheng waved his hand and said, "What's the share? You can sell the cement you produce directly to me, and then I will sell it to you." Get out. No one can lose money to you, brother Zhao, let’s talk about it. This way, we won’t get confused sometimes.”

At the beginning, Zhao Wen was happy for a long time.

But when Zhao Wen figured it out, he instantly realized that he had been bullied by Fan Zheng.

According to what Fan Zheng said, he would lose his pricing power.

In other words, if Fan Zheng bought cement from himself for 100 taels, he could set the price of the 100 taels of cement at 200 taels or more.

In the future, no matter how much Fan Zheng's cement sells for, it has nothing to do with him.

Not only that, what's even more exasperating is that he can only sell it to Fan Zheng, that is to say, if Fan Zheng's price for him is unreasonable, then he can only accept it and cannot refute it.

If he refuted it, if Fan Zheng didn't buy it, it would be a sad reminder.

Of course, it was impossible for Fan Zheng to do that.If Zhao Wen is pushed into a hurry, it will be of no benefit to anyone.

It's not that Zhao Wen never thought of leaving Fan Zheng behind and doing it alone.

But Zhao Wen thought about it for a long time, but still gave up the idea.

The most important thing for businessmen in this era is reputation. If your reputation is ruined because of this, how should you do business in the future?

If it really ruins your reputation because of doing so, it is really not worth it.

Once one's reputation is ruined, it will be difficult to move an inch.

Sometimes, guns and knives don't necessarily solve things.

A great man of later generations said that war is the last and worst means of solving problems.

Therefore, in the part of doing business, if you can use less swords and guns, you should use less swords and guns.

Zhao Wen returned to the Garrison Mansion, and after lunch, he said to Li Xiaosan who was standing next to him, "Go and tell Liu Wu to accompany me to Zhangjiakou tomorrow."

"Yes!"

Li Xiaosan cupped his hands and walked out of the defense mansion.

……

Early the next morning, Zhao Wen was wearing casual clothes, with two big black stars pinned to his waist, and a Type 56 light machine gun hanging on his horse, and Liu Wu, who was fully armed, walked out of the gate of Longmen Castle.

Zhao Wen didn't bring too many soldiers this time, after all, these soldiers now have to guard the Tartar captives.

In addition, there is no danger on the road from Longmenbao to Zhangjiakou, so Zhao Wen only took Liu Wuyi with him.

Even if there is any danger, Zhao Wen can easily solve it with fierce weapons.

Because both of them were riding war horses, their speed was much faster than the previous few times.

At noon the next day, Zhao Wen arrived at Zhangjiakou Fort.

The current Zhao Wen is no different from what he was at the beginning, even a small soldier dares to embarrass him.

Now that Zhao Wen is in the territory of Xuanfu, it can be said that no one knows, no one knows.

Don't you know the fierce men who beheaded hundreds of Tartars?

After Zhao Wen revealed his waist badge, the defenders immediately put on extremely flattering expressions and sent Zhao Wen in.

The city guard looked at Zhao Wen who was leaving, and heaved a sigh of relief, "My God, it can be said that this killing god has been sent away."

"Who says it's not? This God of Killing kills without batting an eyelid. Tsk tsk tsk. It's nothing to say that he beheaded hundreds of tartars."

The soldiers guarding the city looked at Zhao Wen's leaving back and talked a lot.

Zhao Wen rode on the back of a war horse and walked slowly on the bluestone road in Zhangjiakou Fort.

The war horse under his crotch made a few snorting noises from time to time.

Liu Wu looked arrogantly, looking down at the people passing by him.

"Hey, isn't this Mr. Zhao, Mr. Zhao? Mr. Zhao, please hurry up, and leave the horses to the younger ones."

As soon as Zhao Wen walked to the door of Yuan Fuxiang's store in Zhangjiakou, he saw a young boy greet him with a flattering face.

Zhao Wen jumped off the horse, threw the reins to the boy, and then handed the weapon to Liu Wu, and walked into Yuan Fuxiang under the leadership of another boy.

Liu Wu also handed over the reins of the war horse to the boy, and wrapped the weapons Zhao Wen gave him and the weapons he carried with cloth and carried them on his back.

"Uncle Zhao, the shopkeeper Fan is greeting guests in the living room in the back hall? Would you like to wait a moment or..." A chubby servant said flatteringly as he walked.

The boy who led Zhao Wen hurriedly ran towards the back hall after leading Zhao Wen to the main hall.

Not long after, Fan Zheng's hearty laughter was heard from behind.