"Teacher, isn't it that I can't refine metal now?" Long Yuan felt that he was just in contact with refining now, and he couldn't refine metal at all, which was something that only a second-grade refiner could do, so he was a little puzzled by Chihong's words.

"You can learn by leapfrogging so that you can build a solid foundation in the future. I'm going to tell you about temperature now, do you remember what I told you about the Xuanmen Gewu School earlier?"

"Yes. ”

"There is one of the best in this school, Resius, who is very accomplished in the school of Georgia, and he created the Celsius temperature scale. ”

"Celsius?"

"Yes, it's a description of the different temperatures in the form of measurements. For example, the temperature of ice water mixture is zero degrees, and the temperature of boiling water is 100 degrees. With his achievement, it has also indirectly promoted the development of our refiners and alchemists. ”

"And that kind of thing?"

"Yes, because he gave us a better grasp of the temperature changes. For example, the temperature of the flame produced by the burning of different combustibles is different, the temperature of the ghost fire is less than half a hundred, the temperature of the paper is 200 degrees, the temperature of the liquor is between 400 and 600 degrees, and the temperature of the coal fire is at least 1,000 degrees. With these measurements, the refiner and the alchemist have a reference for controlling the temperature of the flame while refining. If it's a small fire, then about 200 degrees is enough, and you can compare the temperature at which the paper burns. ”

"Can it still be like this?"

"Huh, what else?" Chihong crossed his arms and looked at Long Yuan.

Then he threw a book to Long Yuan and said, "This one is a record of the melting point and hardness of some common metals, and I will memorize it in three days." Next, you will be familiar with the various temperatures, and with the measurement as a reference, you will be able to control the temperature of the flame more quickly. ”

Saying that, Chihong walked to Long Yuan with a teapot and said, "Sit down." ”

Long Yuanpan sat down and stared at Chihong, not knowing what the teacher commanded.

Chi Hong placed the spout above Long Yuan's head and poured a pot of hot water directly on Long Yuan's head.

"It's a hundred degrees, you feel it. ”

"Ahh

"What is it called, the Immortal Flame has been in your body for so long, and its resistance to high temperatures and flames is still so poor, don't you often mobilize the Flame Refining Body, wait for it to grow a small one in your body?" Chi Hong poured the spout directly into Long Yuan's open mouth.

Long Yuan clutched his throat and rolled on the ground, like a silkworm chrysalis.

"Hey, come on, come on, give you a hot bath. Chihong smiled lewdly and poured a pot of boiling water on Long Yuan.

"You have to be like a dead pig, not afraid of boiling water, get used to boiling water today. ”

"I@#¥&*"

Long Yuan's whole body was burned red, and there were already a lot of blisters on his body.

"I'll burn you paper in three days, hehe, two hundred degrees. You can promise to learn to refine weapons with peace of mind, this is a process that must be experienced. There is a water bowl in it, and you can make a fire and take a boiling bath in it. Chihong smiled and left the stone room.

Long Yuan got up from the ground and cursed the eight generations of the Chihong Ancestor. After the pain in his body subsided a little, he thought about Chihong's words again, and he felt that it made sense.

Isn't it a shame to say that you have an unquenchable flame in your body, and you can still be burned?

Long Yuan didn't know that even if he was a member of the Fire Crown Cave Heaven clan, his resistance to flames had only gradually improved over the years, and besides, he was not born with a fire body, and the fire attribute true qi was acquired, so even if his body could produce fire resistance, it was not now.

The reason why Chi Hong did this was that he wanted to squeeze the potential of Long Yuan's body, at least ten years of Qi Yuan Realm, martial corpse nature, and self-inflicted true qi with a trace of metallicness, all kinds of signs showed that Long Yuan's physique was too potential, and it would be a pity not to suppress the potential as soon as possible.

Long Yuan looked at the burns on his body and felt helpless, who let him worship a good teacher.

After that, he lit a fire under the furnace in the stone chamber and jumped into it.

After a while, the water in the Ding Furnace began to churn, and Long Yuan used True Qi to form a protection around his body to avoid continuous burns, and at the same time let the inextinguishable flame in his body swim through the meridians to absorb the high temperature from the boiling water.

At the beginning, Long Yuan couldn't stand the temperature of the boiling water, and although he was now at the peak of the Transformation Realm, he still couldn't protect his whole body with True Qi.

However, as the Immortal Flame roamed around his body, occasionally appearing out of the Xuanfu and reaching the outside of his body, Long Yuan found that the damage caused by the boiling water to him no longer seemed to be so serious.

A day later, Long Yuan was soaked in boiling water, holding a book in his hand, which was the one that Chi Hong threw to him.

"Iron, melting temperature of 1,500 degrees, pig iron and wrought iron, pig iron is cast iron, hard, wear-resistant, good castability, but the texture is brittle, can not be forged; wrought iron is also called wrought iron or pure iron, its texture is soft, plasticity is high, easy to spread, but the strength and hardness are low, easy to forge and weld. Smelting pig iron, if it does not reach the level of wrought iron, it is steel, with high toughness, wear resistance, corrosion resistance, heat resistance and fire resistance......"

"Copper, also known as copper, melts at a temperature of 1,100 degrees ......"

"Gold, melting temperature of 1,100 degrees, lower than copper ......"

"Silver, melting temperature less than a thousand degrees ......"

......

"Chromium steel, man-made alloy, chromium-containing alloy steel, hard texture, wear-resistant, corrosion-resistant, non-rusty. ”

Long Yuan flipped through the books in his hand, noting down the various properties and characteristics of various common metals, and when he saw chrome steel, he suddenly remembered a pair of chrome steel gold shoes that he had worn in Longyin Villa before, but the description of chrome steel did not seem to match his cognition.

"If the chrome steel gold shoes were also made by the refiner, the chrome steel and gold may only account for a part, and if there is a true harmony of the qi, it would make sense. Long Yuan muttered to himself.

Soaking in boiling water, Long Yuan focused on the book in his hand, and before he knew it, another day had passed. With the passage of time, it was already difficult for the hot water in the ding to cause pain to Long Yuan.

Long Yuan kept flipping through the pages of the book in his hand, not noticing the changes in himself.

"Huh, why isn't the water hot, is there no firewood?" Long Yuan closed the book and found that the water in the ding was no longer "hot".

Poking his head out to look at Dingxia, Long Yuan found that the fire under Dingxia was still fierce.

"Hmm, could it be that my body has adapted to the heat of the boiling water?" Long Yuan jumped out of the ding, feeling his own state, and now the burns on his body two days ago had healed.

Long Yuan was happy in his heart, which showed that his body's resistance to high temperatures was improving.

When he didn't move, Chihong entered the stone room from the outside, and when he saw that Long Yuan was still flipping through the books and papers in his hand, he said, "How do you remember?"

"Teacher, I've basically written it down. ”

"Hmm. You can memorize the description of metal now and review it often in the future. There are so many metals and materials in the world that you will have to figure out for yourself. I'm just leading you through the door. Chihong stroked his beard slowly, looking like a Hongru.

"Huh?" When he found that there was a fire burning under the Ding furnace inside, Chihong's eyebrows moved slightly.

"Why don't you go in and take a boiling bath, why are you boiling water? ”

"Teacher, I've already soaked it. Long Yuan replied.

Old Chihong squinted at Long Yuan, and then threw him into the ding.

"Hehe, teacher, it's very comfortable to take a shower, you can try it too." Long Yuan came out of the ding, bared his teeth and smiled.

"I'll let you scream, and Ming'er will burn paper for you. Chihong snorted and left the stone chamber again.

"This kid is a bit unexpected to me. As soon as he walked out of the door, Chihong's face changed color.

Following.

Long Yuan came to the stone room early and began to meditate and cultivate. Wisps of clear qi entered his body from the Xuanfu and Sea Eyes around him, and then ran along the meridians for a week and turned into pure True Qi and entered the Qi Sea.

Moreover, in these true qis, Long Yuan found some fine droplets, as thin as cow hairs, imperceptible. But the energy contained in it seems to be much higher than the true qi.

After entering the sea of qi, these fine droplets gradually converged, and finally fell to the bottom of the sea of qi in a clump, like a drizzle.

While Long Yuan observed those droplets, he also found that his sea of qi seemed to be a little deeper than before.

"This should be the reason why I kept running martial arts when I was refining weapons some time ago. Although the refiner can expand the sea of qi with this, every time he refines a weapon, he needs to consume a large amount of true qi, and the gains still outweigh the losses. It seems that it is still necessary to cultivate diligently to replenish the true qi in the sea of qi. Long Yuan said.

He thought that as long as he had enough time to ensure his cultivation, he should not be delayed in his martial arts advancement, and at least his qi sea would expand a lot because of this.

The larger the capacity of the Qi Sea, the stronger his true qi and more prominent combat power in the same realm.

However, Long Yuan ignored that after expanding the Qi Sea, the more time and energy it would take to make it fuller.

Refiners generally change their path when a martial artist discovers that he has this talent when he is in the Qi Yuan Realm, or he finds that his talent in cultivation is not high.

Therefore, with the expansion of the Qi Sea, it is more difficult for refiners to break through. Moreover, because of the frequent refining of weapons, the refiner does not have much time to fill the sea of qi, which leads to an embarrassing situation - the refiner is generally not high in combat power.

But if someone underestimates the refiner because of this, then the fun will be great.

Others don't know what grade of weapon is hidden in the refiner's body, because a refiner can absorb high-level weapons into his body, and if he is in a hurry, he may take out a ninth-grade weapon from his body, and at the risk of self-harm, he will also kill all sides.

Moreover, even if the refiner did not have a top-notch weapon to kill the Quartet, he was forced to be in a hurry, as long as he shouted "Dragon Slaying Treasure Knife, if you hit someone, you will send it", countless scattered martial artists and even some sects will join the team of beating people.

Therefore, as long as it is a person with a normal brain circuit, he will not choose to provoke the refiner, the high-grade refiner, even the head of the martial arts sect respects him, who dares to do anything excessive.

The refiners are meritorious to the martial arts, after all, they play a logistical role in wartime.

There was once a refiner, and all the weapons he refined were robbed by a strong man who cultivated martial arts, but as a result, the refiner found the martial arts sect and cried profusely.

In the end, it was the Fengyi Villa who came out for that refiner, and beat that loose cultivation martial artist powerhouse to the point that he almost lost his spirit.

Since then, people in the world have known that it is easy not to provoke refiners, and later it became not to mess with refiners, because alchemists and treasure refiners are more stinky than refiners.