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The last Tianzhu stone is the most expensive among the three materials.At that time, Li Weizhen joked that two Tianzhu stones the size of a fist would do.

In fact, at this moment Li Weizhen stretched out his fist to compare, and the material still lacked a little in size.Of course, fists have sizes, so of course it's not rigorous.It's just that as a whetstone, the size requirement is not high, mainly depends on its quality, whether it is a high-quality product.

Because Tianzhu stone is only produced in Kunlun, there are of course leftovers that are fake or fake.Because the more scarce something is, the more valuable it is to counterfeit, so as to make huge profits.

For testing the quality of Tianzhu stone, the craftsmen from Taiyi Qilu have unique methods left by their ancestors.It is to scrape off a little powder of Tianzhu stone and mix it into the grass juice extracted from blue core licorice. The original light blue grass juice will show a light golden metallic luster.If the color is yellowish or dull, you have to be vigilant.

Blue-core licorice is not worth much. It is a "cheap grass" that can grow in the desert, and it is also a low-level elixir that can treat minor burns.Strictly speaking, this kind of grass and Tianzhu stone are still from the same hometown.It's just that in the Tibet Qingjing, which has a large area of ​​weathered hills, their status is quite different.

But the world is so strange that the proud son of heaven can be tested by mud legs to see whether he is true or false.

The bottle of grass juice in the glass bottle was brought by Li Weizhen himself. When he entered the inner city a few days ago, he also visited the raw material market.In fact, the bottle is worth more than grass juice.

After inspecting the materials, it is time to start refining the furnace.Improving the quality of Feijian does not need to overthrow the refinement completely. Strictly speaking, it should be called: strengthening!

On the basis of the original grade, through multiple times of quenching and re-polishing, to maximize the potential of the flying sword.

Before that, Li Weizhen first dismantled the hilt of Xingyuan Sword.In fact, the body and hilt of most flying swords are not cast in one piece. As long as the craftsmanship is good enough, they can be disassembled without damage.Like this sword, its hilt is made of the bones of some kind of strange beast. It is of high quality and can bring a very good auxiliary effect.

But the hilt and scabbard are just auxiliary accessories for icing on the cake. The quality of the flying sword itself is the fundamental factor that determines the power of the flying sword.So it is also very common to see that some flying swords do not have hilts. For sword repairers who don't like holding swords, this will not have the slightest impact.

After obtaining the pure sword, it can be heated in a semi-closed stove.

Since then, the first step is called "normalizing".It is to heat the sword body in the pure yang fire to the critical point of the material itself, then take it out from the fire, and blow it with strong wind to cool the sword body to the temperature before it is placed in the furnace.When heating, the sword body can also be rotated slowly in the fire to ensure uniform heating.

This process was repeated three times under Li Weizhen's control.

When the sword body was put into the furnace for the fourth time, the firepower began to heat up suddenly, so that the material of the flying sword quickly reached the critical temperature point, and the firepower retreated rapidly, but it was necessary to ensure that the critical temperature remained above a quarter of an hour.Afterwards, the blade was removed and placed in a water tank containing the spirit of the swamp.This is the second step, and the most critical step, quenching!

After quenching, the sword body became extremely strong, but too fragile. At this time, the sword body, which could cut iron like mud, would be shattered into pieces even if it was just casually thrown on the ground.

Therefore, the third step must be carried out immediately, which is "tempering", which is also the most time-consuming step.It is necessary to put the sword body back into the furnace, let the sword body soften slightly and regain its toughness.At this time, the temperature in the furnace is only half of that of normalizing.And this kind of firepower needs to be strictly maintained for an hour.And he had to repeat it twice after blowing the cold sword with the wind!

All in all, these three steps are the control of firepower and time, which is a very basic art of refining.But often the seemingly simple things are more difficult to do the best.For example, in the third step of tempering, once the temperature is high or low, all previous efforts will be in vain.

A small mistake will cost Li Weizhen ten years of time for it!

Every time it is successfully quenched, the quality of the sword body will be strengthened to a small level.Li Weizhen previously estimated that in order to fully realize the potential of the sword's material, it should be quenched seven times.

Strengthening seven times is not easy, it means that the three steps must be carried out seven times in an orderly manner.That is 28 hours without sleep and rest, and there is still polishing at the end. If you don't have three days, you don't want to leave here.This is a great test for the consumption of spiritual power and state of mind.

Li Weizhen asked himself, he was indeed taking a big gamble.Because, before that, his highest record was to strengthen a fifth-rank flying sword four times, and successfully raised the rank to fourth rank.It was an assessment, and after that, Jin Cheng gave him the recognition of a senior craftsman.

And it was only half a year since he was promoted to a senior craftsman at that time.And in the past six months, Li Weizhen has not accumulated any experience in this area.Now, he began to challenge the enhancement category belonging to the master craftsman.In the circle of refiners, this is definitely shocking news.It is inevitable that people will scold him: Crazy!

After all, strengthening the flying sword has always been more difficult as the number of times is pushed back.Just imagine, at the time of the last strengthening, because the body and mind were exhausted, so I didn't grasp the temperature well, and watched the sword shatter in front of my eyes, but I couldn't do anything. How hard it is to drive people crazy. ?

In fact, in the world of self-cultivation, craftsmen and alchemists are just such a group of lunatics!

Freezing three feet is not a day's cold.During this long and boring strengthening process, the bystanders dispersed one by one.In the end, in Nuo Da's Baoyin Hall, only Li Weizhen was left alone, with the scorching fire as his companion.

Time passed little by little, and it was late at night on the second night.The scorching sword body was put into the water tank for the fifth time.Suddenly, the originally calm water surface gurgled, and a few blisters popped up.This caused ripples on Li Weizhen's long and peaceful face. It was shock and uneasiness that quietly promoted the change of expression!

Because of the first four times, the special clear water in this vat has never had a little bit of blisters due to the scorching heat of the sword.Because the spirit of the swamp with enough Yin Qi would instantly absorb the heat from the sword.

At No. 18 hours after the furnace was turned on, Li Weizhen's first words after breaking the silence were to curse: "Damn you, what a mess?"

And the distance from the strengthening is completed, but there are still two times of quenching!

In Fuchun City, an undisguised Feng Botao walked slowly through the lively hall in an underground casino, greeting people from time to time.He doesn't need to be taboo because of his status, because he is a regular visitor here.

If you don't want to arouse suspicion, don't add superfluous things.

After passing through the hall, Feng Botao came to a luxurious private room.In the private room, there were three men and one woman, playing a jade card called "Tian Jiu".

Among the four, the man in the brocade mink was undoubtedly the luckiest gambler, and he had the most chips on the table.While waiting for the woman to roll dice to deal cards, he was always used to rubbing the ancient coin in his hand, as if it was because this toy could bring him good luck.

Because of Feng Botao's arrival, the gambling on the table stopped for the time being.The Jin Diao man also stopped rubbing the ancient coins and stacked them on top of a stack of golden chips with the highest value.

In the brightly lit private room, it is easy to see the totem of ouroboros embossed on the coins!

defend the truth