Monster Factory - 459

Zhang Zhitong and the policemen were like a group of ignorant college students who stepped into the laboratory for the first time to watch the professor do an experiment.

Nervously and expectantly, they gathered around 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.

The analysis time is a bit long this time.

Because the sample preparation of the atomic absorption spectrometer is relatively cumbersome, it is necessary to collect the test sample first, vaporize the sample, and use radiation projection to observe the spectrum generated when the sample absorbs radiation.

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

Give a simple example.

When Ye Qing ate the altar chicken in Shanghai, he used the soil method to test that there were heavy metal residues in it.

If it is checked by an atomic absorption spectrometer, let alone a serious excess. Even if this altar chicken has eaten a harmful heavy metal food in its entire life, the spectrometer can detect it.

One hour later, the test result came out.

The report forms are all elements in English and symbols, and the technicians have specially translated them into Chinese. The police, like treasures, looked at the elements 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%.

“Wait, shouldn’t the safe be made of metal? Why are there non-metallic substances such as monocalcium aluminate and silicon dioxide in it?”

A sharp-eyed policeman, Columbus was as excited as he discovered the New World, shouted: “These kinds of non-metallic 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 non-metallic elements.

“Ahem~”

Ye Qing couldn’t bear to interrupt the policeman’s “major discovery” and heated discussions with them.

“I think… these kinds of non-metallic substances are part of the foamed fire barrier material inside the safe.”

“…”

The small circle from the trace evidence examination room suddenly embarrassed the heated discussion, and their hearts were cool.

“Ye Qing, look at it this way, isn’t there any external element in the hole ablated at high temperature?” Zhang Zhitong was also confused. When the metal is heated in the air, an oxidation reaction will occur.

So a lot of the words “oxidized” on the test report sounded very high, but in fact they are ordinary iron, aluminum, magnesium, and nickel, which become things after burning.

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

Zhang Zhitong was right. The metal content in the report was one of the materials used to make the case of the safe, without any foreign matter.

Things seem to become unscientific.

There must be a medium in the combustion, which is ignited with a match, and residual elements such as phosphorus and sulfur will inevitably be detected in it. Ignite with mixed flammable gas, it will inevitably leave the common alkane gas, olefin gas, acetylene gas, and other residual elements.

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

Seemingly 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, some stared at the test report sullenly, and some leaned on the chair and sighed. They were all unconcealed frustration and disappointment.

“I see.”

Ye Qing suddenly showed a confident smile.

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

“There is no unusual composition, but the original metal composition ratio is incorrect.” Ye Qing pointed to the metal composition on the test report, and the corner of his mouth curled up: “Aluminum, magnesium, the composition is wrong.”

“Adding aluminum to metal materials can improve the strength and corrosion resistance of the metal. However, the content of aluminum in this report exceeds the standard.”

“The wear-resistant steel used in safes is usually of the KN60 model. From the metal composition of this safe, it is also used. I remember that the proportion of aluminum in this wear-resistant steel is only 3%, and the test here Aluminum accounted for 15%.”

“The proportion of magnesium added 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 this group of 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 such a stupid mistake of mismatching.”

“Since the factory can’t be wrong, it means that the extra aluminum and magnesium were added by the band of thieves.”

“Add aluminum and magnesium?” Zhang Zhitong’e frowned: “What do these people want to do?”

“Iron oxide should have been added, but there is too much iron in the outer shell of the safe, and there is not much change in the test report.”

“Also add iron?”

“Very brilliant idea.” Ye Qing admired: “This group of people is definitely not as simple as industrial processing, but very proficient, and can be called an engineer’s level.”

“Thermite reaction, or thermite.”

“Use aluminum powder, iron oxide powder, mixed together, and use magnesium powder as the igniting agent.”

“With a proper mixing ratio, it can produce a high temperature of more than 3,000 degrees after ignition. In industrial applications, this method will be used to melt refractory metals 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, this kind of hole with bullets, right?

“High pressure jet.”

Ye Qing firmly said: “Mixed with extremely fine metal powder in a pressure vessel, the igniting effect is no less than the metal jet of an armor-piercing projectile.”

“The finer the metal powder, 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 can burn with a little fire. And nano-sized iron Iron powder can be bought online.”

“For this group of industrial masters, burn through the shell of the safe and use a few small tools to pry open the internal mechanical lock structure.”

“…”

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

What kind of jewels are stolen with this technology? Go to the United States as a spy and steal high-tech information.

After listening to Ye Qing’s popular science, the police burst into tears. They thought 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 policemen 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 of gold jewellery is probably a pile of dispensable materials.

“This will be a major case that will sensationalize the internal police system across the country.” After a long time in amazement, Zhang Zhitong sighed: “With such an unheard of crime method, I really have no confidence in catching them.”

“Try it and check the major universities and laboratories. Ordinary technicians do not have the ability to do this. If the ratio of the thermite is not good, it will become an incendiary 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.”