Monster Factory Chapter 554: : Test results that make police fearful

Zhang Zhitong and the policemen, like a group of ignorant college students, stepped into the laboratory for the first time to watch Professor experiment.

I was nervous and expectant, surrounded by this German Goldman atomic absorption spectrometer.

The mystery of the concrete wall has been solved, and the remaining safe, as long as the puzzle is solved, they can more accurately locate the criminal's occupation according to the method of committing the crime.

this time analysis time is a bit long.

Because the sample preparation of atomic absorption spectrometer is cumbersome, it is necessary to collect the test sample first, vaporize the sample, and project it through radiation to observe the spectrum produced when the sample absorbs radiation.

This is a very high-tech inspection method. With this inspection method, all foreign matter is hidden in the hole ablated by high temperature.

Take a simple example.

At the beginning, Ye Qing ate the altar chicken in Shanghai, and tested it with soil method to find heavy metal residue in it.

If it is tested by atomic absorption spectrometer, let alone a serious excess. Even if this altar chicken has eaten a harmful heavy metal food in its entire life, spectrometer can also test it out.

One hour later, the test result came out.

The report forms are all elements in English and symbols, and the technicians specially translated them into Chinese. The police, like treasures, looked at them one by one according to the elements inside.

Ferrous oxide, ferroferric oxide, aluminum oxide, nickel oxide, magnesium oxide, monocalcium aluminate, silica calcium carbonate...

From the test results, almost all the metal components on the safe were burned into another substance at high temperature.

The test results also indicate the proportion of these components in the sample, of which the proportion of iron is the largest, accounting for 55%.

"děng děng|etc|wait, shouldn't the safe be metal, why are there nonmetal substances such as monocalcium aluminate and silica?"

A sharp-eyed policeman, Columbus was as excited as he discovered the New World and shouted: "These nonmetal substances are likely to be criminals, the key to destroying the safe."

"What kind of chemical reaction is used? I remember these ingredients can be used as chemical additives."

Several police officers in the trace evidence examination room immediately began to discuss the uses of these nonmetal elements.

"Ahem ~"

Ye Qing couldn't bear to interrupt the policeman's "major discovery" and heated discussions with them.

"I think... these nonmetal substances are part of the foamed fire barrier material inside the safe."

"..."

From the small circle of the trace evidence examination room, the heated discussion atmosphere suddenly became embarrassing, and their hearts were cool.

"Ye Qing, in this way, isn't there any foreign element in the hole ablated at high temperature?" Zhang Zhitong was also confused. When metal was heated in the air, an oxidation reaction would occur.

Then a lot of the words "oxidized" on the test report sounded very high. In fact, they are the iron, aluminum, magnesium, and nickel of ordinary, which become things after burning.

Ye Qing did not answer this question, but continued to look at the test report.

Zhang Zhitong is right. The metal ingredients in the report are all one of the materials used to make the shell of the safe, without any foreign substances.

Things seem to become unscientific.

There is bound to be a medium for burning. Ignite it with a match. Residual elements such as phosphorus and sulfur are bound to be detected. Ignite with mixed flammable gas, it will inevitably leave the common alkane gas, olefin gas, acetylene gas, and residual elements of děng děng|etc|wait.

This world belongs to science, there is no magic, and there is no cultivation.

It seems unscientific, it must have failed to find the true mystery.

The police have been completely dumbfounded. They feel that their IQ is no longer worthy to catch these mysterious criminals.

Someone looked down at the floor, someone stared at the test report sullenly, and someone leaned on the chair and sighed, all unconcealed frustration and disappointment.

"That's how it is."

Ye Qing suddenly showed a confident smile.

This sentence is more effective than a strong heart. The police hurriedly raised their heads, staring at Ye Qing without a moment's notice, and at the same time behaved in a good manner.

"There are no unusual ingredients, but the ratio of the original metal ingredients is not correct." Ye Qing pointed to the several metal ingredients on the test report, and the corners of his mouth curled up: "Aluminum, magnesium, the ingredients are wrong."

"Adding aluminum to metal material can increase the strength and corrosion resistance of metal. However, the aluminum content in this report exceeds the standard."

"The wear-resistant steel used in safes is usually model Kn60. From the metal composition of this safe, it is also used. I remember that in this wear-resistant steel, the proportion of aluminum is only 3%. The aluminum detected here accounts for 15%."

"The addition ratio of magnesium is even lower, it seems that it is less than 1%, but 5% is detected here."

No, even what alloy used can be summed up from the metal composition?

While admiring these policemen, they couldn't help but wonder, what will happen if there is more aluminum and magnesium?

"Any kind of alloy formula is the best ratio value obtained after long-term practice and exploration. No Factory will make this stupid mistake of mismatching."

"Since Factory can't be wrong, then the extra aluminum and magnesium in representative were added by the band of thieves."

"Add aluminum and magnesium?" Zhang Zhitong frowned: "What do these people want to do?"

"Iron oxide should have been added. There is too much iron in the shell of the merely safe, and there is not much change in the test report."

"Add iron?"

"Very brilliant idea." Ye Qing admired: "This group of people is definitely not as simple as knowing industrial processing, but very proficient, which can be called an engineer's level."

"Thermite reaction, or aluminothermics."

"Use aluminum powder, iron oxide powder, mixed together, and magnesium powder as the igniting agent."

"The proper mixing ratio can produce a high temperature of more than 3000 degrees after ignition. In industrial applications, this method will be used to melt refractory metal, or metal welding."

Another unpopular technique was learned by them, and the police listened little by little.

But Mr. Ye said that this method is generally used to melt metal or weld. It shouldn’t be ablated, right?

"High-pressure jet~IndoMTL.com~Ye Qing said: "Mixed with extremely fine powdered metal in a pressure vessel, the ignition effect is no less than that of the metal jet of an armor-piercing projectile. "

"The finer the powdered metal, the more fully it burns. Take the most common iron, ordinary iron, you can burn it for a lifetime with a lighter. But nano-sized iron powder will burn with a little fire. Nano iron powder is available online."

"For these industrial masters, burn through the safe case and use a few small tools to pry open the internal mechanical lock structure."

"..."

Mother of god, who is the engineer who ran to be a thief after he was full?

What kind of jewelry are you stealing with this technology? Be a spy on USA and steal high-tech information.

After listening to Ye Qing's popular science, the policemen burst into tears. They felt that these industrial experts were terrible.

If...

What would happen if an industrial talent like Mr. Ye did things that violated the law and discipline?

This is a very desperate speculation, but the police at the scene thought about it again. Mr. Ye took out something casually, which could be worth the price of one of their headquarters buildings.

They felt relieved and at ease.

In his eyes, tens of millions gold and jewelry is probably a pile of dispensable materials.

"This will be a big case that has caused a sensation in the system of the national police." After a long time of wonder, Zhang Zhitong sighed: "Being able to come up with this unheard method of committing crimes, I really have no confidence to catch it. Them."

"Try it and check the major universities and laboratories. The technicians of ordinary do not have the ability in this area. If the ratio of aluminothermics is not good, it will become a fire bomb and burn yourself into a turkey. "

Ye Qing also sighed: "With this technology, it would be a shame not to come to our Factory to work and become a thief."