Chapter 461: Enough of the Top Armor

Seeing his actions, the comrades from the Communications Institute were surprised and delighted.

What makes me happy is that Mr. Gao never speaks nonsense. If he says he can solve a problem for you, he will do so immediately.

What’s surprising is that even faced with such a last-minute request, he can even come up with two materials for you to choose from!
After a while, Comrade Xiao Li came over with two small samples: "Teacher, these are the samples and desensitization instructions you asked for."

All samples have a desensitization instruction sheet, which hides what should be hidden, modifies what should be modified, and even names such as WT-2 and WY-1 have been changed.

Xiao Li put the materials down, said hello to the comrades from the Communications Institute and went out.

Gao Zhendong picked up the desensitization instructions and handed them to Chief Engineer Feng: "Mr. Feng, take a look at these two materials and decide which one is more suitable."

These two materials are tungsten copper and tungsten silver, which Gao Zhendong made in his spare time at his former research laboratory, now the technical department of the third factory.

We only took one type of tungsten copper, which is the one with a higher copper content.

There is tungsten, which has a high melting point and is also hard.

There is copper or silver, which has good conductivity.

Mr. Feng and his colleagues at the telephone office looked at the two documents. Although they had no idea what they were, their performance parameters were clear to them.

"The conductivity is 35% IACS, which is about the same as magnesium. That's enough."

"What's that? Didn't you see there's a 50% IACS?"

%IACS, roughly speaking, is the percentage of the conductivity of international standard annealed copper. The higher the value, the better. 35% is already very high. For example, H90 brass (a copper alloy mainly containing 90% copper and 10% zinc) is 25%IACS.

"The hardness and melting point are both very high. With this, arc erosion and welding are basically no longer a problem."

"The processing performance is also quite good. It is not like tungsten, which is too hard to chew, and its electrical performance is not as good as this one."

"This thing alone can save us half the effort on the relay. The most troublesome thing now is the contact."

The comrades at the telephone office looked at the two things with delight on their faces, but they were also confused about the two things that had obviously different conductive properties.

Because except for the conductivity, the other properties are far beyond what is required, and they think the higher the conductivity, the better.

"Mr. Gao, what is the main difference between these two materials besides their visible performance?"

Gao Zhendong smiled and said, "As for the price, the one with better conductivity is much more expensive. For a 10000-port switch, several kilograms or even dozens of kilograms of precious metals will be used. If the 6007 with a slightly lower conductivity can meet the requirements, I suggest using this one."

6007 is tungsten copper and 6013 is tungsten silver.

Regarding the specific project implementation, Gao Zhendong's inclination is to just use enough, unless there are any special requirements. As long as it is sufficient, some margin should be left. If it is too high, it will not make much sense.

Especially for things that involve mass production, if they really need to be replaced due to new needs, you can consider replacing them. Before that, the principle is to be sufficient.

Gao Zhendong's former mentor often scolded him when reviewing projects, "Fuck, it's just a promotional webpage, but the hardware needs to be equipped with 32-core 128G memory dual-machine hot standby, what's the point of putting it up! It's better to add security configuration. It's a waste at first glance, and it will block the way for other projects in the future. A bunch of rubbish, they can't even get a budget."

The comrades at the telephone office certainly did not have this idea, but Gao Zhendong still gave his suggestions very clearly.

After hearing his suggestion, Mr. Feng from the Communications Institute nodded and said, "Mr. Gao, what you said makes sense. Let's choose the cheaper one."

Several kilograms or even dozens of kilograms of precious metals. Although we don’t know what kind they are, there is no doubt that the amount is a bit high.

Gao Zhendong did not make a final decision: "Take these two materials back and try them out, and then make a decision. In short, my opinion is that it should be sufficient. The performance of the equipment cannot be determined by a single indicator."

Lao Maozi: You have a point!

Little Japanese: That makes so much fucking sense!

With the strong support from Gao Zhendong, Mr. Feng and his team went directly to Factory 1237 with the newly acquired materials.

Their Communications Institute does not directly produce relays. They cooperate with the professional Factory 1237 of the th Ministry of Machine Building to imitate relays.

The Postal and Communications Commission and the 12th Ministry of Machine Building have a very deep relationship.

The comrades from Factory 1237, who were struggling with contact materials, almost jumped for joy after receiving 6007 and 6013.

"Chief Engineer Feng, where did you find these two materials? They look just like they were made to order! Did you ask our comrades in the north for help?"

He couldn't think of any other channel that could produce such qualified materials so quickly.

Mr. Feng couldn't say anything, so he could only smile and said, "Don't worry about this. Just try to see if it can be used. The source is stable. As long as it can be used, we can get a stable supply."

The comrades from Factory 1237 understood what was going on and asked, "Is this domestic material?"

If it is not domestic, the words "stable supply" are not very reliable, even if it is from Russia, it is the same, or even more unstable. This can be said: "Well, it is domestic, we also searched all over the country and found it with great effort."

In fact, it didn't take much effort. I just went to that person's place.

But we have to say this, otherwise it is easy to be framed by the scope of the source.

The comrades at Factory 1237 were so happy not only because of the relay issue.

"Boss Feng, come on, let's talk over here."

Comrades from 1237 invited General Feng to one side, and then said that the fewer people who knew about it, the better, as everyone understood the rules.

"Mr. Feng, to be honest, these two materials are very useful for an important project we are working on, especially 6013. Its mechanical properties, melting point, combined electrical conductivity and corrosion resistance are very important to us."

Tungsten silver material is an important contact material in the electronics industry. Its uses span across multiple industries. It is normal that Factory 1237, which specializes in electronic devices such as relays, cannot take its eyes off it when seeing it.

As for where it would be used or in which industry, he did not say. The reason was probably similar to that of Mr. Feng who could not say where it was found.

Mr. Feng understood what he meant: "Lao Yao, I understand your feelings. I also know the excellence of this material. But please also understand my difficulties. You also know the discipline. I dare not even use it for you in other places except this project. But in our project, you always need to conduct comprehensive tests on the materials. This is what you are supposed to do."

What he meant was very direct. I dare not give you the stuff for use anywhere else, not even a gram.

But you can conduct comprehensive tests on your own topics and first test whether it can really be used. If you find hidden defects after testing and you can't use it, then there is nothing to say.

If it turns out to be useful after testing, you can find a solution.

Engineer Yao from Factory 1237 also understood what he meant and also understood his approach.

It's all for similar reasons, no one dares to go beyond the line.

No matter what, at least he could be sure that this thing was domestically made and could be mass-produced with a stable source. These two points alone had already made him overjoyed.

Thinking of this, Engineer Yao nodded: "Well, thank you. If it is really available at that time, please give me some advice, Mr. Feng."

What he meant by pointing out the way was to ask Mr. Feng to tell him how to obtain permission to inquire about the source of this material.

Mr. Feng smiled and said, "I hope it can be used too. It would be great if we can solve your problem at the same time as solving ours."

It's all for work comrades, so Mr. Feng is very willing to help as long as it doesn't violate the rules.
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Gao Zhendong, Professor Luo from Beijing University of Technology, and Engineer Lu from the Research Institute got together.

If for no other reason than the terminal-sensitive bomb.

Gao Zhendong is in charge of the overall work, Professor Luo is in charge of the combat unit, and Engineer Lu has experience in infrared detection and is responsible for infrared detectors and reconnaissance logic.

There was also a comrade from the Institute of Aerodynamics who was in charge of parachutes.

It just so happened that this is how Gao Zhendong formed the team when the project was launched.

Lu Gong was very interested in this thing. The improvement work of Thunder-1 was his part. The core problem had been solved, so he could devote his energy to it.

As a weapon of a new concept, the terminal-guided bomb is a hot commodity in the eyes of weapon developers, who are simply excited about the prospect.

Although the Missile Research and Development Institute is engaged in missile research, it is still possible to get the person with Gao Zhendong's help.

What they were discussing at this time was the basic structure of the terminal-guided munition.

"Mr. Gao, I have analyzed that at a distance of 100 meters, air resistance will have a certain impact on penetration." Professor Luo has already started working.

Once the self-forged fragmentation warhead EFP is formed, the main factors affecting its penetration are its shape and initial velocity.

In his previous life, Gao Zhendong had flipped through a paper and seen the test of tantalum-zirconium energetic EFP. Because the zirconium layer was a bit thick, it affected the shape of the EFP, and as a result, the penetration was not as good as the copper cover with the same structure and charge.

So many things are not as simple as you think. Just taking some materials and applying them may not necessarily yield good results.

"What's the result?" Gao Zhendong knew how big the impact was, but he couldn't say it directly, because that would be a bit scary, so he had to ask.

"We conducted preliminary analysis and tested it with standard existing charges and liner. The armor penetration ratio at this distance dropped by 60% to 65%, but it is still sufficient."

The standard charge he mentioned has now been replaced with Black Mix 60, and there are clear regulations on the charge diameter, length, filling density, liner size structure, etc.

Everyone had long expected that the armor-piercing multiple would decrease. The original armor-piercing multiple of the rifle-mounted grenade was around 2.0, but now it is only 0.7 to 0.8, which is not bad.

This has little to do with the explosion height, it's an aerodynamic issue.

Gao Zhendong had expected this and had already calculated it. He smiled and said, "Well, it seems that the 110mm caliber warhead can still hit about 80mm, which is enough."

(End of this chapter)