After being kicked out of Kunning Palace by the Queen Mother of the Two Palaces, Zhu Cijiong finally came back to his senses from the ecstasy of becoming a father for the first time, and for the two suggestions given by the Queen Mother of the Two Palaces, he was busy with state affairs or lived in the harem, this actually did not have to choose, the two were not contradictory, he was busy with state affairs during the day, and he was not allowed to live in the harem at night, and Kunning Palace did not let him live.

This state affairs are not busy at first, what he wants to do most now is to develop precision machine tools, but the knowledge given by the system is too large and complex, has far exceeded the technical level of this period, if you explain to others a little bit, it is estimated that you can not finish talking about it for several years or even decades, and it is far away to make precision machine tools.

Zhu Cijiong thought about it for a long time, and felt that only by classifying all the knowledge and teaching it to professionals to study, and then by himself according to the research progress of various knowledge, it was possible to make the prototype of precision machine tools in a short period of time.

How do you divide this class? In fact, the structure of the machine tool is not complicated, it is nothing more than a power source, a mechanism for transmitting power and a metal cutting tool for the final processing and execution of the operation.

According to the structure of the machine tool, all knowledge is divided into three categories, which should be the simplest and most appropriate classification method, if you insist on dividing according to the discipline, it is not the research and development of machine tools, but to establish a scientific system, the difficulty is high, don't think about it in this era.

The first one, the power source, this is not complicated, it used to be a steam-powered piston, but now it is necessary to change to an electrically driven motor, this electricity is already available, and professionals are also available, that is, Xu Fuyuan and Xia Yunyi, as for the motor, leave it to the two of them to develop it, it should not be very difficult.

The second, the transmission device, this is not complicated, it used to be a gear drive, and now it is necessary to change it to a reducer, the reducer is a gearbox to put it bluntly, just a specific gear package together, this is just a structural problem, there is no difficulty in technology, and it should be done soon by Wang Zheng.

The third, metal cutting tools, this is more difficult, used to use high-carbon steel, now to change to tool steel, this tool steel is a kind of alloy steel, involving manganese, silicon, chromium, vanadium, tungsten, cobalt, molybdenum and other elements of purification, in this era can be done? Zhu Cijiong really didn't know the bottom in his heart.

However, this alloy technology has to be overcome, because the first two items are also related to alloys, for example, the silicon steel sheet that must be used in the motor is an alloy, and the gears in the gearbox are best made of alloys with chromium, tungsten and other elements, which can enhance hardness and increase durability.

It seems that the success or failure of this precision machine tool, or what level of precision machine tool can be made, is ultimately determined by this alloy smelting, we must first figure out what level the current Daming alloy smelting to, whether there is the concept of element purification, in order to start other aspects of research.

If you want to talk about an expert in this area, it must be Song Yingxing, Zhu Cijiong immediately issued an order to order Song Yingxing to enter the palace to face the saint.

After Song Yingxing received the edict, he was quite surprised, it seemed that he had heard that since the queen was happy, the emperor was almost crazy with joy, and he didn't care about anything, just accompanied the queen wholeheartedly, why did he suddenly recruit him into the palace to see the driver at this time?

Of course, surprise to surprise does not mean that he does not want to go, and when he receives the edict, he immediately leaves everything behind and hurries to the palace.

Song Yingxing is a cronie of Zhu Cijiong's cronies, and the two naturally do not have that sense of alienation between monarchs and ministers when they meet, after a courtesy of monarchs and ministers, Song Yingxing even did not forget to congratulate: "Congratulations to the emperor, congratulations to the emperor, the queen is happy, the blessing of the world!" “

Zhu Cijiong smiled and nodded, motioning for him to sit down at the conference table together, and then sighed: "I was also overjoyed for a while, and I almost forgot about state affairs, but fortunately, the two queen mothers reminded me that I suddenly woke up to the fact that state affairs are important, and state affairs are important." “

Song Yingxing rarely argued: "Your Majesty, please forgive Weichen for being courageous, the queen is happy, it is also a major matter of the country, and it is normal for the emperor to be so concerned." “

Zhu Cijiong shook his head with a smile and said, "Okay, okay, let's not talk about this, I have something important to inquire about when I come to you this time." “

Song Yingxing's face immediately turned straight, and he arched his hand and said, "Please ask the emperor to inquire." “

Zhu Cijiong thought for a while and asked hopefully: "Chang Geng, do you know that in addition to gold, silver, copper and iron, there are other things similar to gold?" “

This question is simply out of Song Yingxing's rice bowl, and he said without thinking: "Back to the emperor, Weichen knows that the earth gives birth to hardware to use the world and future generations, and there are five main kinds of metallic things, one is gold, two is silver, three is copper, four is iron, five is tin, and there are lead, lead and other supplements, and there are countless types!" “

Damn, he actually knows tin and lead, and he also knows that there are other metal elements, but what is this lead, Zhu Cijiong didn't know, he asked curiously: "What is it?" “

Song Yingxing explained unsurprisingly: "There is no ancient book of Japanese lead, it is a famous color established in recent times, and it is normal that the emperor has not heard of it, and this Japanese lead is mainly used to make brass." The copper used in this world is only red copper after mining and smelting. However, if calamine or lead is added to smelt together, it will be transformed into brass; If arsenic and other drugs are added, it can be refined into white copper; Drugs such as alum and saltpeter can be refined into bronze; Add tinned brass to the sound; Cast copper with the addition of putt. “

Now Zhu Cijiong understood, after a long time, the lead is zinc, why do you use the word "Japanese", could it be that this thing was passed from Dongying? It's unlikely, Dongying is lagging behind to death at this time, how can he be more advanced than Daming in smelting technology, he asked curiously: "Why is this thing called Japanese lead?" Did you get it from the Wakos? “

When Song Yingxing heard this, his face was strange, and he shook his head embarrassedly: "Well, Your Majesty, this is not the widow of the widow, but the meaning of violent, because this thing is very similar to lead and more violent than the nature of lead, so it is called Japanese lead." “

Zhu Cijiong's face flushed, this word actually has other meanings, he is lonely and unheard, but listening to Song Yingxing's tone, does this era already know how to refine zinc? He asked curiously, "Then where did this lead come from?" “

Song Yingxing explained in detail: "This lead is made of calamine, each time ten catties of calamine are put into a mud jar, coated with mud on the outside of the mud jar to seal, and then the surface is smoothed and let it gradually dry. Never roast over fire to prevent the clay pot from breaking. Then use briquettes to pad the calamine layer by layer, spread firewood underneath to set it on fire, and finally the calamine in the mud pot can be melted into a ball. After the mud pot has cooled, the jar is broken and the lead is taken out. “

Damn, the ancient version of the vacuum heating reduction method!

This metropolis, it seems that this metal smelting and metal purification has a certain foundation in this era, and it is not very difficult to develop.