To improve the hardness of the cutting material, quenching is the key, there is no first process quenching, so that the cutting material reaches the ideal hardness, and the next tempering to improve the toughness of the cutting material is empty talk.

Therefore, the success or failure of the quenching of the cutting edge is the key to whether the cutting material can be tempered.

Di Renjie and Wei Yuanzhong got the quenching materials, while Cheng Chubi and Wang Xiaojie got the tempering materials.

The new steelmaking method is divided into two in terms of heat treatment, with each side accounting for one and one on both sides, and both sides have no complaints.

The first step of quenching of Di Renjie and Wei Yuanzhong is very important, only by quenching the blade material with sufficient hardness, Cheng Chubi and Wang Xiaojie can temper the blade material, improve the toughness, and make the steel rigid and flexible.

Wei Yuanzhong's provocation indirectly allowed Gao Sheng to steal seven days of leisure, and at the moment he was lying on the recliner at work, taking a nap, while watching Di Renjie and Wei Yuanzhong make steel.

According to the prior agreement, when Di Renjie and Wei Yuanzhong were quenching, they could not be by the side to avoid the leakage of quenching technology.

Cheng Chubi was happy, lying on the rattan chair in the courtyard basking in the sun, drinking tea, and waiting for Gao Yue to listen to the story of the Monkey King after school.

Wang Xiaojie, a man born in the army, has no other hobbies, he spends his days boxing and fitness in the hospital, and only when Gao Yue comes back from school, he will carry a small bench and listen to stories with Cheng Chubi.

This is cheaper Cheng Chubi, basking in the sun, drinking tea, and watching Wang Xiaojie's boxing.

Whenever he saw Wang Xiaojie's fist whistling and tiger walking, Cheng Chubi applauded loudly and cheered, and he was a idle kid.

The applause reached the studio, and Wei Yuanzhong, who was quenching steel, couldn't calm down at all, and scolded the damn second generation Xun for being idle, why didn't he die.

On the contrary, Di Renjie, a short and fat man, concentrated in the noise, changing his usual debauchery.

This made Gao Sheng a little surprised, this is the image that Di Renjie should have in his heart.

In ancient times when there was no electronic furnace, if you want to achieve the ideal hardness of carbon steel through simple equipment and charcoal combustion quenching, the quenching time and charcoal combustion must have a quantitative standard, so that carbon steel can achieve the ideal hardness requirements through quenching.

Although the length of time for carbon steel quenching can be quantified, the quantitative standard of charcoal combustion can only be judged by the experience of blacksmiths.

The same bucket of charcoal combustion, through the blower and other combustion means, can accelerate the combustion of this bucket of charcoal, release a large amount of heat at the same time, shorten the quenching time of carbon steel.

If there are too many impurities in this bucket of charcoal, even if the combustion is supported by means of a blower, the heat of combustion is still low, and the carbon steel needs to be quenched for a longer time.

These are all the results of the blacksmith's experience in observing the coal fire, and without experience, everyone can be a blacksmith.

Therefore, in ancient times, steelmaking and blade casting had to be judged based on experience, even if Gao Sheng had given the steps and methods of quenching, even if he was an experienced blacksmith, it was impossible to touch the doorway at once.

For Di Renjie and Wei Yuanzhong, who have never been in contact with steelmaking, if there is no guidance from Gao Sheng, even if they have explored it for a lifetime, they will not be able to touch the doorway.

After several failures, Di Renjie and Wei Yuanzhong looked depressed.

Only after hands-on testing will you understand that the process of quenching seems simple, but the success of the actual operation is as difficult as the sky.

If it weren't for Gao Sheng's words in advance, Di Renjie would immediately ask him for the trick of quenching.

However, Wei Yuanzhong was like a stubborn donkey, burying his head in the studio repeatedly testing quenching, failing and coming back, wasting countless steel bars.

Gao Sheng looked at the discarded steel bars, his flesh hurt, and the government didn't allocate money to him, the food, drink, and Lazar of these four guys, as well as the waste of charcoal and steel bars, could only be paid for by him.

Even after Wei Yuanzhong had dinner, he was in the studio, lighting an oil lamp and continuing to quench the steel bars, and tried it repeatedly, and his strength was better than Gao Sheng's original.

It was late autumn and the weather was getting colder.

Finally, the cooling led to a strange event in the Gao family's compound, which was a shocking event for the people of the Tang Dynasty.

In the Gaojia compound building group, one of the functions that is only open in winter has been officially launched.

King Zheng's mansion brought piles of charcoal for the Gao family, and in addition to the usual fire, it can be regarded as having an official place at this moment.

Boiler hot water heating, this is at the beginning of the establishment of the villa complex, Gao Sheng took into account, at this moment these heating facilities officially play a role.

Heating pipes made of stone lead to every room in the villa, not even the slave and maid's house.

The Tang Dynasty people of the Gao family were shocked inexplicably, even the emperor Lao'er was heating with a charcoal stove and sleeping on a fire kang, a small Tian Shehan, the ability is so big, it can make the room warm.

Everyone was not calm, especially Cheng Chubi, Wang Xiaojie, Di Renjie and Wei Yuanzhong, who directly studied the heating facilities of the Gao family.

Looking at the boiler room, the slave maid used a shovel to add charcoal to the boiler from time to time, and Cheng Chubi, a high-rise brain-dead fan, took the lead in sighing: "Wonderful, such a charcoal boiling water for heating is refreshing, not inferior to the fire kang, and the third brother is really a god." ”

Di Renjie nodded, with a look of fascination, and said: "The third brother is a god, and he is really powerful, Huaiying is fortunate to learn the new method of steelmaking with him, it is really a great luck, a great luck!" ”

"It's a big deal, it's just a small change, a question of what you can think of and what you can't think of." Wei Yuanzhong snorted disdainfully, although this thing was not convinced, but in his heart, he was turning over the river and the sea.

When he first entered the Gao family, because he hated the powerful very much, he didn't have a good temper with Gao Sheng.

If it weren't for his stubbornness and extreme disdain for the gate valve and the scholar clan, if he had taken refuge in the gate valve and the scholar clan and recommended him, he would have been an official a long time ago.

Moreover, he didn't know enough about the new steelmaking law, and thought that the imperial court would knight Gao Sheng because of the new steelmaking law, which was too favorable, and Gao Sheng was an opportunist who only knew about the franchise.

What's more, he felt that this new method of steelmaking was nothing more than Erer, and with his intelligence, wasn't it easy to learn?

Unexpectedly, after he really tried it, he realized how complicated the first process of quenching of the new steelmaking method was.

At this point, he already admired Gao Sheng very much in his heart, when Gao Yue told Cheng Chubi and Wang Xiaojie the story of the Monkey King after school, when he learned that the original story of the Monkey was Gao Sheng, he was horrified for a long time, and finally found that he was really not as good as Gao Sheng.

Now, Gao's heating equipment has refreshed his cognition, and he is not convinced.

It's just that Wei Yuanzhong has always been high, and although he is convinced by Gao Sheng in his heart, it is difficult for him to bow his head to Gao Sheng.

Wang Xiaojie, who had not spoken, heard Wei Yuanzhong's words, and said coldly: "Sir, how can ordinary people do it?" If not, everyone is a gentleman, so why should you and I come to ask him for a new method of steelmaking? ”

Wei Yuanzhong's words to Wang Xiaojie were suddenly embarrassed, and he couldn't make a sound.

Cheng Chubi saw that Wei Yuanzhong didn't like it earlier, and when he saw Wang Xiaojie taking the lead in making a mockery, he smiled and said: "Why should Xiaojie bother with this person, before we left, Sikong (Li Ji) repeatedly explained, we must unite and love, and we must unite and love." ”

Wang Xiaojie immediately shut up and didn't say much.

Wei Yuanzhong's face was embarrassed again, and he was about to reply, but he saw the short and fat man Di Renjie coming over with a smile, and the arm he grabbed took off and said: "Yuanzhong, the quenching of our steel bar has not been studied yet, so let's go, you and I will test it again." ”

Wei Yuanzhong had no choice but to follow him out.

When the two came to the studio, Di Renjie closed the door, and then said to Wei Yuanzhong: "Yuanzhong, how about this person in your opinion?" ”

Wei Yuanzhong didn't expect him to ask this question suddenly, rolled his eyes, and said casually: "Didn't you Di Huaiying call someone 'Third Brother' earlier, why did you come to ask me?" ”

Di Renjie said with a smile: "Gao Sheng, this person is really worthy of Huaiying's call 'third brother', in the past, there was a capable person as a teacher, and now there is a capable person Huaiying called 'third brother', is it inappropriate?" ”

Wei Yuanzhong smiled bitterly, even his best friend felt that Gao Sheng was an extraordinary person, in fact, why didn't he think so in his heart? However, he didn't want to admit it in front of outsiders.

However, Di Renjie is not an outsider.

He thought for a moment, looked gloomy, and sighed: "To say something that is not against his heart, this person is really very human. ”

In the studio, only Di Renjie's arrogant laughter and Wei Yuanzhong's wry smile were heard......