Next, Li Xiang turned to another few pages, which wrote about various heat treatment methods such as quenching, normalizing, tempering and annealing of steel. In fact, these methods have existed in ancient times, but they are slightly different from later generations in terms of name, but the blacksmiths at that time also knew the role www.biquge.info of quenching and tempering, and there were some corresponding treatments, but the ancient blacksmiths were mostly experienced, for example, putting red-hot iron into cold water is called quenching, as for what is the supercooled austenite for martensite or bainite transformation, and how to get martensite or bainite tissue, but there is no concept.

Of course, Li Xiang did not talk about these terms in this booklet, but only talked about the various characteristics of iron with various carbon contents after using different quenching methods, as well as the principle of tempering and normalizing, the role of stress relief annealing, and so on.

Li Xiang talked about the problem of the furnace in the booklet again. Because the Song Dynasty already knew the importance of fans and chimneys, the blast furnace of the iron factory was able to slowly feed from the top of the furnace, and by the time the ore reached the bottom of the furnace, it was already slag and iron juice.

Li Xiang naturally inquired about this matter clearly, but he described it theoretically, which is also the content of his plan to talk to officials and technicians in the future, and at this time Wang Lin and others have not yet listened to the lecture, but Li Xiang felt that these people should also understand the knowledge of metal materials and heat treatment, so he printed the technology of refurbishment metal smelting into a manual, and introduced some basic knowledge of various alloys.

Li Xiang's arrangement, of course, is because he understands the importance of applying technology to factory production.

Now that time is pressing, Li Xiang knows that it will not be long before the Huahua world in the south of the Yangtze River will be driven into by the Mongolian iron cavalry, and the prosperity of the Great Song Dynasty will no longer exist, and more than half of the Han people will be killed and injured, of course, the Great Song Dynasty is also rotten, and there is no need to be cannon fodder for the Great Song Emperor.

As the saying goes, the cunning rabbit dies, the lackey cooks, and if he helps the Emperor of the Great Song Dynasty defeat the Mongol Empire, he will be in danger at that time. Li Xiang knows very well how the Zhao family treats those heroes, so if he wants to protect himself, he must establish his own power, if that is the case, he might as well simply let the Great Song Dynasty become history.

Soon, hundreds of people in Shaoxi Mansion had mastered new scientific and technological knowledge, and more than half of them were already proficient in making the practice problems copied by Li Xiang.

At the same time, Li Xiang asked the Duzuoyuan to cast some common mass units of one gram, five grams, ten grams, and ten kilograms, and Li Xiang asked someone to find a carpenter to make nearly 100 metric wooden rulers, and then put the clock in the Duzuoyuan and technical school.

Since then, Li Xiang has three major units of measurement: length, mass, and time, so that mechanics and kinematics have the most basic units of representation, and other concepts such as momentum and increment will also evolve from these three basic units.

These are all standardized things, which have been implemented in Lin'an at the beginning, and now they are more perfect.

The matter of coke made Li Xiang suddenly think of oil again. In fact, oil was present as early as the Qin and Han dynasties, and began to be used in the Tang Dynasty, for example, it was called fire oil in wars, and there were other names such as stone paint, stone grease water, fierce fire oil, fire oil, naphtha, stone candles, etc.

According to ancient records, oil mines appeared in Shaanxi, Gansu, Xinjiang, Sichuan, Taiwan and other provinces in ancient times, and the technology of refining simple lubricating oil from oil had been mastered before the Tang Dynasty. Thinking of the various uses of oil, Li Xiang decided that if he could exploit a large amount of oil in the future, he could even print the refining of oil, including small refining towers, trays, fans, heat exchangers, atmospheric and vacuum methods, and catalytic principles.

More than half of the artillery produced by the Duzuoyuan was transported to Chongqing Prefecture, after all, it was the place where the Sichuan Embassy was stationed, and the artillery battalion of the Sichuan army was located in Chongqing Prefecture.

This time, Li Xiang took a hundred cannons and went to Chongqing Mansion again.

There were still more than ten miles away from Chongqing Mansion, so Li Xiang asked his subordinates to send the cannon to the artillery camp by themselves, while he and Huan'er went to Lu Mansion together.

Li Xiang rode on a tall horse and enjoyed the scenery of Chongqing Mansion along the way. The current Chongqing is far from the Chongqing of the 21st century, although there are no high-rise buildings and neon lights in later generations, but there are countless natural scenery that will not be available in later generations.

The dense jungle and the beautiful landscapes are intertwined and connected into one, outlining a landscape oil painting that can never be seen in the 21st century, and people can't help but want to place their love on this landscape from now on.

In this situation, Li Xiang couldn't help but think of a poem and blurted out, "Outside the desert river and the sky, ascend to the photo room." The tide comes without other pools, and the wood falls to see other mountains. The sand birds fly far away, and the fishermen sing at night. The poor have not been returned, and the heart is returned piece by piece. ”

Huan'er listened to it in the carriage, poked her head out and asked: "Is it a new poem written by Childe, the little maid has never heard of it before, and the son can become a poem every time he exits, which really makes the little maid admire!" ”

As soon as he entered Chongqing City, he didn't go far, a middle-aged man in his forties hurried over, saw Li Xiang, and immediately stepped forward and said, "My lord, the old slave came to pick up the adult and go to the house on the order of my master." ”

This person is none other than Lu Meng, the housekeeper of the Lu Mansion.

As the saying goes, the minions in the prime minister's mansion are also superior, although Lu Wende is not the prime minister now, but he is also a well-known member of the imperial court, a prince, the most important point is that he is deeply relied on by the emperor, and the defense of the entire Sichuan is the responsibility of the Lu family, and the authority can be described as quite prominent, and Lu Meng is the housekeeper of the Lu Mansion, not an ordinary subordinate.

Li Xiang hurriedly dismounted and said, "There is a housekeeper of Lao Lu!" ”

Lu Meng hurriedly bowed down and said, "Don't dare, my lord, please come with the old slave!" He didn't dare to snub Li Xiang, when he was in the Lu Mansion, he was very clear about the matter between Lord Li and Miss Li in front of him, and since the master did not speak out against it, he obviously acquiesced in the relationship between the two. Now that Li Xiang has come to Chongqing Mansion again, if he can't keep it, he will marry Miss, and his identity will naturally become the uncle of Lu Mansion, and he will also be his future half of the master.

Li Xiang came to the mountain city again, and the street was full of people, extremely prosperous, and the street more than ten meters wide was almost crowded with people. After walking for about half an hour, the streets gradually became less and less crowded, but the streets became wider, lined with luxurious mansions covering an extremely large area, and from time to time the brightly armored Praetorian Guards patrolled back and forth, almost every once in a while.

After walking for about half an hour, the group finally stopped in front of a mansion, which was where the Lu Mansion was located. There are two stone lions squatting in front of the house, majestic and extraordinary.

When Li Xiang arrived in the front yard, Lu Wende was already sitting in the living room of the front yard, leisurely sipping tea, and hurriedly stepped forward to salute and said, "Xia Guan has seen my lord!" (To be continued.) )