Sorry, a chapter was released regularly at 7 o'clock in the morning.
The chapter name should be Chapter 216 Refugees.
Friends who have already subscribed, please refresh and watch it. s, those who have already subscribed will not re-subscribe.
As soon as Dian Wei and others left, guards came up to report.
"Report to Xu Dezhi for an audience."
Some time ago, he upgraded Xu Dezhi's position to the battalion level, and transferred him to Huaxia City to be in charge of smelting copper coins and forging some weapons.
The work in the mine has been handed over to his original subordinates.
This is an affirmation of him.
It is impossible to let such talents do low-level work all the time.
They must learn to manage and use their knowledge to guide the people below to do things.
Maximize the role of knowledge.
Qingcang didn't know why Xu Dezhi asked for an interview this time.
Usually he was the only one who summoned them, and they rarely asked for an interview.
Then there must be something to ask him for.
"Let him in."
After the guard went out, Xu Dezhi came in.
He was holding two things in his hand, two copper coins and a small piece of gold.
"Meet the Commander."
Qingcang asked: "Well, what are you doing here this time?"
"Coming back to the commander, I am here to discuss smelting matters with you.
You were busy some time ago, so I dared not come to see you.
Recently I heard that you have more time, so I came."
Qingcang was indeed very busy some time ago.
He was not in the meeting hall most of the time and seldom went out, otherwise he had to go out to deal with important matters.
For this kind of smelting matter, it was naturally not very important, so Xu Dezhi came to ask for help while Qingcang was free.
I remember that the last time Qingcang came up with an iron-making method, which completely subverted people's understanding of iron-making and made everyone admire them.
Xu Dezhi came to see him today, and he had a preconceived feeling.
Whenever he encountered something that couldn't be solved, he would Qingcang is right.
So, here he comes.
"Tell me what problems you encountered."
"There are two main questions I want to ask.
First, about the copper coins."
Xu Dezhi held two copper coins in his hand, one new and one old.
The new one was a Hua Yuan version of the copper coin, and the old one was a five-baht coin.
It was obvious that the surface of the five-baht coin had patina.
If copper coins are not used frequently, they will easily develop some patina, which is difficult to avoid.
Only through constant transactions can the money look brand new.
"Oh, what's the problem with these two coins?"
Xu Dezhi said: "After the commander implemented the monetary policy, people began to exchange a large number of Chinese dollars.
A Chinese dollar with a face value of 100 yuan requires a hundred copper coins, and what we want to make is only a copper coin with a face value of one yuan.
It is obvious that the five baht coins can be recycled The quantity is much greater than The copper coins we want to mint will result in a large number of redundant five-baht coins.
Once these copper coins are placed in the warehouse, they will develop patina like this over time.
So far, there is no convenient and effective way to avoid patina.
This is One."
In this way, a drop of money can be exchanged for at least ten hundred-yuan Huayuan.
Free novels bring you joy and joy ---> storyskyline.net
The two weights are completely different.
It can be said that the heavy ones are exchanged for the light ones.
When the heavy ones are gathered together, there will be an extremely large amount.
Now the problem of what to do with this large amount of copper coins is before them.
This problem is indeed quite big.
The modern theory is that copper coins are oxidized.
If it is not solved, then some of these copper coins will be lost.
The purpose of Xu Dezhi's visit is to solve this problem.
He hopes Qingcang can solve the problem of preserving the copper coins for him.
He thought for a while and immediately thought of a way.
He sometimes often heard the term car waxing.
This wax plays an isolating role to protect the car's paint and isolate it from the air, so that the car's paint can be preserved for longer. long time.
However, if each of a large number of copper coins needs to be waxed, it will be a huge project, and the copper coins must be cleaned, which will consume a lot of human resources, so the gain outweighs the loss.
But if all the copper can be melted together, this problem may be solved.
It will be easier to use in the future, just like casting a gold brick.
Making a copper brick will also be convenient for storage.
So he said: "You can melt all the extra copper coins together and make them about the size of a brick.
Then use grease to protect the entire copper brick.
Store it in the cleanest place.
I believe it will be better preserved."
After a while, if there is some rust, just reprocess it and it will be as good as new.”
Xu Dezhi patted his head and shouted: "Oh, why didn't I think of it?
Look at my head.
If I do it like the commander, I can save a lot of space and make it easier to access."
Qing Cang smiled and asked, "What about the second question?"
Xu Dezhi took out a piece of gold from his hand and said: "Second, I have a piece of gold in my hand.
It is very difficult to purify gold at our level.
Most of the materials are too high and the efficiency is extremely low.
I also exchange it for foreign merchants.
Comparing it with gold, there are also many impurities.”
The gold in his hand had some black dots, and those black dots had been embedded into the gold, which showed that it was not pure enough.
In ancient times, the refining of gold remained at its most primitive stage, and it was normal for it to be inefficient.
Qingcang didn't know anything about gold purification, and he didn't learn anything about gold purification in school.
In fact, he didn't need it, because modern machines were used for purification, so there was nothing wrong with him.
So with his knowledge base, he really can't help, but with the system, nothing is impossible.
Since Xu Dezhi mentioned it, Qingcang should solve it for him by the way, because he has seen that there is a smelting book in the mall.
The book on improving purification is very clear, and it contains a large number of metal purification methods. , the price is ten days of life value.
"You wait" Qingcang turned around and began to gesture quickly with his hands.
At this time, he was already very familiar with the location of each option, so the clicks were very smooth.
Xu Dezhi didn't know what he was doing.
He stood there stupidly looking at Qingcang.
He felt that Qingcang was practicing witchcraft.
When Qingcang turned around again, there was a thick book in his hand.
"Smelting" It is a traditional color illustrated book.
"Take this book and read it.
Free novels bring you joy and joy ---> storyskyline.net
It introduces the method of purifying gold in this way, and of course there are also methods of purifying other metals."
He threw the book to Xu Dezhi.
As soon as Xu Dezhi took the book, he was stunned for a while and then started to flip through the book.
The more he looked at it, the more surprised he became.
Sometimes he suddenly realized it, and sometimes he patted himself on the head.
The methods recorded in it are very rich, and the pictures are extremely clear.
He kept mumbling: "God's book, God's book, Commander, where did this book come from?
It's so magical."
He couldn't help but dance.
"Okay, you go down and do it well."
There are people who are crazy about literature, and there are people who are crazy about martial arts.
Xu Dezhi, who is crazy about metals, also has people who are crazy about metals.
In his eyes, nothing excites him more than metal.
"Yes, Commander":