The people in the Light Church camp did not try to trace the route to express their gratitude. Wang Qi and the staff were already mentally prepared.
If they have the intention to contact the locals, they can do so before setting up the camp. By this time, they have basically expressed their attitude, which is roughly "ignore and not hostile."
It was also based on this attitude that all the items sent were ordinary semi-killed steel.
This is a material between boiled steel and killed steel, with an oxygen content between the two. Its advantage is that production is simpler. It is equivalent to the previous crude steel in a new combined production line of Phoenix Steel. The ore goes in and comes out as semi-killed steel. From a layman's point of view, it can also be classified as homogeneous steel. The disadvantage is that the requirements for ore are relatively high.
Wang Qi originally planned to use the crude steel lake directly, but the staff advised him that the steel was too poor and he might have to invest in it in the future, so it was better to solve it in one go.
Killed steel and semi-killed steel have better properties than ordinary carbon steel, and their usage is divided into two categories, casting and hot processing.
Casting is to heat the steel ingot above the melting point. At this time, it can show the characteristics of killed steel. There will be no bubbling boiling state. The molten steel is calm enough, which is conducive to improving the casting quality. The production of some special alloys also needs to take advantage of this characteristic. .
Thermal processing mainly refers to steel plates, wire rods, etc., and the threshold is relatively high. If there is no protective gas, partial oxidation will easily occur during the thermal processing process, because these materials are not that thick, and a little oxidation will lead to reduced performance after processing.
Currently, there are only three Phoenix Branch Plants of Phoenix Steel Plant, Fenggu Main Plant and Fenggu Machinery Processing Plant in the country that can perform hot processing of killed steel. A certain Pangxun Machinery Processing Plant is trying to introduce equipment, but there is a gap between Fenggu and Pangxun plates. This cannot be done until the problem of transporting ultra-heavy equipment is solved.
As for the parachutes and parachute ropes used in airdrops, they may attract attention, but don’t worry too much.
Mechanical equipment can be reverse engineered relatively easily, but materials science is too difficult to reverse engineer.
Not far away, take the suspected super-ancient transatmospheric lander unearthed by our own mining. The alloy composition of its shell has been analyzed long ago, but it is still far from being restored.
The composition ratio and heat treatment jointly determine the properties of the alloy. With Kingdom's existing heat treatment technology, a plate with a pressure resistance of 300 MPa can be increased to 450 MPa through heat treatment without any element doping.
The same goes for the lander shell, which is made of niobium-tungsten alloy. Kingdom's attainments in these two components are relatively low. Compared with decades of accumulation of iron-based and titanium-based materials, it is not even an entry-level material.
The steel wire rope in the parachute rope is an iron-chromium-nickel alloy with a chromium content of 20%. Not to mention whether the Light Church can analyze the composition, even if it is analyzed, can it achieve the same performance without the heat treatment process?
It was really a helpless move to get this kind of metal and wool-blend paracord.
Local cotton-like plant fibers have not received much attention, so that during the development of the light textile industry, there has been a lack of elastic fabrics. Although the elasticity of cotton thread is also limited, due to its structure, it is at least less likely to break than most animal hair threads after spinning.
In short, there is no rope material that can have both strength and elasticity, which is why the military commissioned companies to come up with steel wire wool ropes. It mainly solves the weakness of wool ropes in terms of tensile strength. After blending, it also has a certain elasticity, which is helpful for the safety of umbrellas and materials. .
It can be used, but it is definitely not easy to use. Fortunately, with the construction of polyester mass production plants, this thing will also be eliminated.
When making parachute rope, nylon (nylon) is definitely the best material, because polyester has no elasticity, while nylon has elasticity similar to cotton fiber. However, Wang Qi, the fake prophet, is not in the chemical industry, and the second generation of the disaster have not had much exposure to this knowledge. They all rely on decades of messing around in several chemical plants and university laboratories. The development of the chemical industry requires special luck. If there is no nylon, we can only make do with polyester. Moreover, the high temperature resistance of polyester is much higher than that of nylon, and it is more suitable for environments where fireballs are flying around at any time.
In fact, the development of metal ropes is the result of the uneven development of chemical industry and metal processing. Metal ropes are now used in many situations where chemical fibers should have been used.
Metal rope has excellent physical properties and is non-flammable, but compared to chemical fiber, it is basically not resistant to acids and alkalis. Even if it is oxidized, the effect will not be particularly good. Another disadvantage is that the performance is too good, which makes it too dangerous.
For example, the thin steel rope in the parachute rope is very similar to the fishing line currently used in China. This kind of steel line with a total thickness of about one millimeter after braiding often injures fishermen. It cannot be easily thickened because it is slightly thicker. , even old fishing tools can’t break it, and it can easily get entangled to death. You can’t go fishing and still carry a pair of pliers in your pocket for self-defense.
From this perspective, chemical fibers are of great use. At least under the same tensile strength, chemical fibers are thicker and easier to cut, which is more friendly to personnel safety.
Moving on to ancient landers.
After three years of analysis and research, this thing has produced some results.
The reports sent to Wang Qi were intermittent, and most of them had no impact on the "now".
Taking materials as an example, all metal materials that have been successfully analyzed on the lander have been prepared in the laboratory, and several heat treatment methods have been tried for each material, such as boiling point critical constant temperature, incandescent constant temperature, water spraying and submersion. Cooling, alkaline quenching, etc.
All laboratory finished products were subjected to final testing at Phoenix Steel, and the results showed that they had technical content, but did not meet expectations.
Perhaps because the magic power source is powerful enough, the alloy technology represented by the lander lacks systematic performance.
The kingdom itself uses steel as the dividing line, with two directions: light alloy and heavy alloy. Affected by the floating island environment, the application range of heavy alloy is small, and research is somewhat ineffective.
Light alloys and iron-based alloys have their own application scenarios. Titanium alloys and aluminum alloys are mostly used in aircraft, while iron-based alloys are mainly used on the ground and generally do not mix.
On the ancient lander, the internal bed frame and some table metal parts were made of aluminum-magnesium alloy, but judging from its niobium-tungsten alloy shell, the weight reduction of this tubular part is completely meaningless.
It also has a lead alloy radiation protection layer on it, which is important evidence that confirms the lander's ability to operate in outer space.
Excluding the personnel oxygen and other contents, the calculation model restored the various parts of the lander. The entire shell accounts for more than 70% of the total mass. It is completely unlike the logic of a spacecraft launched from the ground, such as in a low-gravity, no-atmosphere environment such as an asteroid. made.
This set of metal materials is really not much that can be used at home.
For example, niobium-tungsten alloy has a higher specific gravity than lead. Even if it is used someday, it will only be used on the nozzle mask of rocket engines. If it is used in future aircraft engines, it will probably have to be studied. For niobium-molybdenum alloy or elemental niobium composite layer, the density of tungsten greatly affects the performance data.
Magnesium alloys can be used as a reference.
The density of magnesium-aluminum alloy is lower than that of iron-aluminum alloy. Although it has major shortcomings such as difficulty in manufacturing, easy fracture, and intolerance to high temperatures, it has the advantage of low density and has its application scenarios. For example, the metal structural parts of passenger aircraft chairs are made of a It doesn’t hurt to use it.
This thing is not going to be handed over to Rainbow Metal. Just like gold, we can just set up a small factory with hundreds of people to work on it.
Materials other than metals are basically not possible for reverse analysis.
Apart from materials, the analysis results of the lander are still concentrated in the category of magic.
A very unique force generation method is used here, tentatively named "loss generation".
The effect of loss generation is similar to that of floating and flying. The difference is that it has better directional control and a higher utilization rate of magic power. In other words, it has more potential to convert magic power into loss.
At this point in time, the laboratory restoration of loss generation has been successful, but the prototype is too large, and the structure is relatively... rare.
It occupies the corners of a regular tetrahedron in space. The four components communicate only through magic, with no physical connection, and there must be no debris in the tetrahedral interval.
Its structure means that it is difficult to make a pod to hang under the wing like the existing engine. The prototype occupies nearly 12 cubic meters, and it also requires a very large basic space to be placed inside the aircraft.
Then again, if we can completely understand the principle of magic and transform it into other sizes at will, then it can be used in flying cars and future flying fortresses. It is a technology that can really help deal with demons.
