While refining the magic weapon, Zhang Ping thought about it, and even gave his IQ a drop of merit, but not enough IQ is a hard injury:

In other words, the difference between dark matter, dark energy, normal matter, and the visible world is essentially the difference in the nature of energy, so cultivating the truth, and all means of cultivation, is the use of dark energy.

To put it more directly, it can be seen that matter is the basic substance, which is a low-energy substance; Dark matter, dark energy, is a high-energy substance. It is precisely in this way that the so-called aura and true element of cultivation are approaching the dark energy.

The spiritual materials in cultivation, such as low-level spiritual materials such as dark iron and red copper, are actually basic substances that contain dark energy. Since it contains a certain kind of energy, in scientific research, there is a concept of "saturation".

The saturation of dark energy (aura) of materials in nature is usually less than 10%.

If you want to refine the magic weapon, so that the magic weapon can be as big or small as you like, and even into the body, one of the important steps is "purification".

In fact, from the perspective of current scientific research, the so-called purification is to increase the saturation of spiritual energy - different cultivation systems need to use different dark energy. And what is used in cultivation is aura; In the body of a cultivator, the true qi, the true element, and the spiritual energy are in the same line.

However, not all atoms in the material can be continuously improved, and those that cannot be increased in saturation need to be eliminated.

Therefore, refining tools, or refining materials, consists of two steps: purification, empowerment - increasing saturation. Empowerment is mainly true qi, aura, and spiritual power.

Only when the spirit material reaches a certain purity limit will it exhibit the properties of dark matter.

However, this purity requirement is not high, and there is no need for three nines, six nines, maybe not even 30%.

According to the material knowledge that Zhang Ping learned from 'Senior Brother Jiang Ziya (Jiang Taiyuan)', as long as ordinary spiritual materials are refined by true fire, they will have some dark matter properties.

True fire, under normal circumstances, is an ultra-high pressure and ultra-pure dark energy aggregate that can only be produced after the Jindan period. Refining materials with real fire also has the problem of saturation.

If you refine the magic weapon, theoretically it is enough for the spiritual material saturation to reach 30%.

Ritual instruments are less demanding. Some very low-level magic weapons, even a little special ink is enough, and there is no concept of 'saturation' at all.

However, the limit of saturation is not 100%. According to Jiang Tae-won, he can achieve thousands of times the 'super super super saturation' in the extreme environment of the laboratory.

However, if the limit environment is removed, the highest saturation record that can be retained stably in the natural environment is 327%. It's kind of like fuming sulfuric acid. But a more appropriate metaphor would be a magnet.

Zhang Ping estimates that in order for the material to reach the state of dark matter stealth, the saturation must exceed 80%, at least.

At this time, a table appeared in Zhang Ping's mind, which was a statistical table for senior brother Jiang Taiyuan. Due to the different properties of different materials, the data in this table is for reference only.

Theoretically, when the aura saturation of an ordinary spiritual material reaches 30%, you can refine the magic weapon. However, considering various practical problems, the lowest saturation of the magic weapon is about 36%; Too low for the effect to be guaranteed.

The medium-grade magic weapon is about 50% (40%~60%), and the high-grade magic weapon can reach 80% (70~90%). The top magic weapons can reach more than 90% or even more than 100%.

But the reason why magic weapons can be invisible, enlarged and reduced, in addition to the materials themselves and special formations, there are also the powerful spirits of the refiners (spiritual sense, and even the primordial spirit), as well as the true elements that they have completed their transformation. And none of these Zhang Ping have.

What Zhang Ping has is half of the spiritual power of transformation, half of the true qi of transformation, and the true fire of the sun beyond the limit.

If Zhang Ping wants to make the magic weapon have stealth ability, he can only use the true fire of the sun to frantically increase the 'dark energy saturation' of the material.

The true fire of the sun burns brightly, and a large number of 'impurities' that cannot increase the saturation are removed.

The method of purifying the true fire is very simple - what cannot increase the saturation will be blown away by the real fire; Those who can continue to increase the saturation will be friendly with the real fire and will not be blown away.

Of course, the tricks are a matter of personal exploration.

Zhang Ping slowly but steadily increased the power of the true fire, and gradually, the first ten kilograms of Xuantie iron sand are now less than one kilogram left. However, as Zhang Ping continued to increase the power of the true fire, the remaining molten dark iron was still rapidly decreasing.

Liu Baoying still watched quietly, and there was no distress about the consumption of Xuantie at all - the impurities that were actually removed by Zhang Ping fell at Zhang Ping's feet, forming a piece of iron powder. These things can also be collected.

The most important thing is that the 'impurities' that have been refined by Zhang Ping are all treasures in Liu Baoying's eyes.

Time passed little by little, Liu Baoying threw more than 50 kilograms of black iron from afar, and in the end, Zhang Ping only had a ball of molten iron about the size of a fist left in his hand, which was estimated to be no more than 2 kilograms.

This ball of molten iron has a faint golden light flashing, like a top-grade gemstone.

Zhang Ping had a smile on his face. At this time, the power of his true fire had been increased to the limit, but the effect was beyond imagination.

This ball of molten iron was completely filled with Zhang Ping's true qi. Zhang Ping estimates that the saturation will reach at least 90 percent, or even close to 100 percent. It's just that there are no instruments, and the experience is not enough, and there is no senior brother by his side, so he can only guess.

The reason why it is estimated to be more than 90% is because the senior brother has explained that the true qi flows unhindered and without stagnation, and the saturation is at least 90%.

If the saturation exceeds 100%, then there will be an Ambilight situation.

Now, it looks like it's between 90% and 100%.

And Zhang Ping is even more satisfied with - Senior Brother Jiang Taiyuan said that Senior Brother Jiang does not borrow instruments and equipment, and if he only refines the tools with his bare hands, he can only reach 90%. Jiang Taiyuan's cultivation is in the late Yuan Infancy!

Taking a few deep breaths, Zhang Ping calmed himself down. The refining tool is only half completed so far, and the next one is also crucial. So you can't wave yet.

Under Zhang Ping's control, the molten iron slowly changed into the shape of a long knife; One of the two thin copper rings that had just been smelted was embedded in the swallowing position of the handle and quickly merged into the molten iron.

Then I saw that there was a faint golden formation in the thin copper ring spreading out, quickly spreading to the knife body, and the entire long knife faintly echoed with the bronze bracelet that Zhang Ping placed in front, and the formation shone together.

"It's amazing, it's a match! It feels like a wireless connection. Liu Baoying couldn't help but exclaim. Seeing now, she finally couldn't help the surprise in her heart.

Although she got the 'Intermediate Refiner Qualification Certificate', in front of Zhang Ping, Liu Baoying only had one feeling: she was still a child...... Student.

That kind of familiarity with the formation, the mastery of the real fire, the familiarity with the materials, as well as the powerful real fire and the skillful skills of flowing water, all of which made Liu Baoying feel like a mountain is standing up.

Looking at the 'assistants' prepared for Zhang Ping, Liu Baoying suddenly had a strange feeling: these people are not 'assistants', but 'constraints'!

Now these guys are standing to the side and staring dryly, completely unaware of how to cooperate with Zhang Ping's refiner. In the end, it was Liu Baoying who stepped forward to assist (steal the school).

Without Zhang Ping saying anything, Liu Baoying skillfully opened various equipment, prepared various materials, and activated various formations. As for these assistants, they were all kicked out.

"Hoo ......"

Liu Baoying was obviously relieved to hear Zhang Ping. Turning his head, he saw Zhang Ping nodding his head, and Liu Baoying smiled back.

Refiner, continue.

When the copper ring and the long knife were completely fused, when the formation in the copper ring and the bracelet were completely 'paired', Zhang Ping twisted a little golden spark again, but a little needle-sized fire made Liu Baoying feel the scorching heat and creepy crisis.

This point of fire can easily pass through sword weapons, brand formations, and refining weapons, and be used to attack...... There is absolutely no doubt about the power.

The familiar refining methods are back. Venus jumped, swirled, and sketched exquisite formations on the surface of the long knife. Because the speed was too fast, coupled with the dragged flame phantom, it formed a layer of golden tulle together with the formation pattern, which quickly extended towards the tip of the knife.

However, in a few minutes, a layer of golden gauze appeared on the knife body, which was still in a semi-molten state; Then the sari gradually became addicted to the blade, leaving a hair-thin pattern.

Zhang Ping held a long knife, and the true fire of the sun was cultivated and combed over and over again. This kind of cultivation can make the formation more perfect, fit more deeply with the long knife itself, and of course, it can also deepen the 'aura saturation' of the material of the blade itself.

The most important thing is that the formation pattern is also slowly seeping into the inside of the blade.

A moment later, when the thermometer in Liu Baoying's hand was lowered to a certain temperature, Zhang Ping began to quench.