The advantages of Fire Cloth were obvious. Not only could it protect against heat, but once it was dirty, there was no need to waste detergent. It only needed to be roasted in the fire for a period of time, and the stains on it would be cleaned up. It could save time and effort and was very convenient.
However, Huo Huan Cloth had always been a rare material in Huaxia, and its price was ridiculously high. It could not even be measured by price as it was considered a priceless treasure. Therefore, even though Huo Huan Cloth had excellent properties, no one would choose to use it to make clothes for themselves, nor could they buy it. Although the Emperor would occasionally obtain Huo Huan Cloth, he would always treat it as a treasure and store it away. He would even bury it in his own underground palace after his death, causing a great waste and causing the Emperor's descendants to question the existence of Huo Huan Cloth.
The root of all this was that for thousands of years, no one in the Hua Xia Empire had been able to make Fire Cloth, which made this kind of cloth extremely rare. Only a few people could see it, and most people had only heard of it. Ang Lee naturally knew that Fire Cloth was the so-called asbestos, a very common material. It was not difficult to develop and manufacture. As long as one was given some time, one could make these materials. At this moment, asbestos had obviously been made by Ang Lee.
There were many asbestos mines in the West, and there were also asbestos mines in the territory of the Tang Empire, about Central Sichuan. The output was not small. The ore that Ang Lee used to study Fire Cloth came from Central Sichuan. The craftsmen specially searched for it according to Ang Lee's request. As a result, asbestos mines were quickly found and the first batch of mined asbestos ore was transported to Chang 'an for Ang Lee's research.
In fact, asbestos was a kind of natural mineral. It looked like a strange stone from a distance. The most common type of asbestos ore was called serpentine asbestos. It had excellent alkali resistance and was almost immune to alkali corrosion. However, it had poor acid resistance. Very weak organic acids could precipitate the magnesium oxide in the asbestos and reduce the strength of the asbestos fiber.
There was also hornblende asbestos, which belonged to the hornblende asbestos and belonged to the monoclinic crystal system. Generally, the color was dark, the specific gravity was large, and it had high acid resistance, alkali resistance, chemical stability, and good corrosion resistance. In particular, blue asbestos had better filtration properties. It had important characteristics such as preventing chemical toxins and purifying the air contaminated by radioactive substances.
The difference between serpentine asbestos and amphibole asbestos was that the asbestos was ground in a mortar. Serpentine asbestos was made into a messy felt ball, and the fibers were not easy to separate. Amphibole asbestos was easily divided into many fine fibers after grinding. Asbestos without iron was white, while asbestos with iron was blue in different shades. The fibrous aggregate had a silky luster, and the fibers after splitting had a dim luster.
Asbestos is a collection of fine tubular fibers arranged in parallel with each other. It can be split into very fine asbestos fibers, and the diameter can be as small as 0.1 micron or less. After it is completely split and loose, it is difficult to observe with the naked eye. Therefore, it is a good bacterial filter material.
Asbestos with a fiber length of more than 8mm can be mixed with 20-30% cotton yarn to make fire-resistant textile materials. Shorter fibers can be used to make asbestos adhesive cloth, asbestos board, and insulation materials. Blue asbestos has a unique ability to prevent chemical toxins and purify the air contaminated by radioactive particles. It is used to make a variety of high-efficiency filters, and the filtering efficiency of asbestos paper made with it is close to 100%.
Asbestos fibers with vertical cracks are called transverse fibers, generally less than 30cm in length. Serpentine asbestos is mostly produced in this form. Asbestos fibers that extend in the direction of the cracks are called longitudinal fibers, and their length can reach more than one meter. Blue asbestos is mostly longitudinal fibers, and other asbestos have both fibers.
Asbestos deposits occur in ultrabasic rocks or metamorphic dolomites. Asbestos occurs in rock cracks a few millimeters or centimeters wide to form cotton veins, and the ore body is composed of clusters of cotton veins.
Serpentine asbestos is widely distributed, accounting for more than 90% of the total production of asbestos. It is mainly formed in the contact zone between intrusions and dolomite or dolomitic limestone, and in the network cracks of serpentine formed by metamorphism of ultrabasic rocks.
Amphibole asbestos is mostly formed under dynamic metamorphism conditions by hydrothermal fluids providing sodium and magnesium to iron bearing siliceous rocks. The largest serpentine mine is located in the Ural Mountains in the west.
Asbestos resources in the Tang Dynasty are relatively scarce, but it is sufficient for use. After all, asbestos is very polluting and can easily cause harm to the human body, so it must be limited to a certain extent. For example, many old houses in the future use asbestos tiles. Although they are cheap and do not cause much harm to the users, for the craftsmen who produce asbestos tiles, their bodies will suffer great harm. Therefore, it is better not to carry out large-scale production. After all, many materials can replace asbestos, and the Tang Dynasty has a certain amount of asbestos.
In the future, asbestos has a very wide range of uses. More than 90% of the asbestos used in the world is chrysotile asbestos, and its fibers can be split into very fine elemental fibers with excellent spinning properties. Crocidolite asbestos and iron asbestos account for less than 10% of the total consumption of asbestos and are mainly used for shipbuilding. Amphibole asbestos is a kind of asbestos similar to talc and is commonly used for industrial talc.
Asbestos fibers can be woven into yarn, thread, rope, cloth, packing, and so on. They can be used as materials or liners for transmission, heat preservation, heat insulation, insulation, and other components. They are mainly used in buildings to make asbestos boards, asbestos paper fireproof boards, heat preservation tubes and kiln mats, as well as heat preservation, heat preservation, insulation, sound insulation, and other materials.
Asbestos fibers can be mixed with cement to make asbestos cement tiles, boards, roof boards, asbestos pipes, and other asbestos cement products. Asbestos and asphalt can be mixed to make asbestos asphalt products, such as asbestos asphalt boards, cloth (linoleum), paper, bricks, liquid asbestos paint, putty for embedding cement roads and expanding cracks, and so on. They can be used as waterproof, heat preservation, insulation, and acid-alkali resistant materials for high-grade buildings and transportation engineering materials.
In national defense, asbestos can be bonded with phenolic, polypropylene, and other plastics. They can be made into rocket ablation-resistant materials, aircraft wings, fuel tanks, rocket tail nozzle tubes, and high-speed torpedo launchers. They can also be used as soundproof and heat insulation materials in ships, cars, planes, tanks, and ships. After asbestos and various kinds of rubber are mixed and molded, they can also be used as sealing materials for liquid rocket engine connectors. Asbestos and phenolic resin laminate can be used as heat-resistant materials for missile heads. Blue asbestos can also be used as chemical and atomic radiation resistant liners, separators, or filters, acid-resistant packing, rubber boards, and so on.
Due to the softness of asbestos fibers, it has the characteristics of insulation, heat insulation, sound insulation, high temperature resistance, acid-alkali resistance, corrosion resistance, and wear-resistant properties. It has a considerable number of uses in commercial, public, and industrial facilities, such as fire-resistant asbestos textiles, water pipes, insulation boards, and other asbestos cement products, as well as various heat insulation materials. It is widely used in construction, electrical appliances, automobiles, household goods, and so on.
Asbestos materials are used in all aspects of life. However, in order to protect the health of the asbestos craftsmen, Ang Lee will not study too much asbestos materials. For example, asbestos shoes, asbestos gloves, and so on can be replaced with pure cotton materials. There is no need to develop them. Even if asbestos gloves and asbestos boots are developed, they are for special groups of people, such as blacksmiths and firefighters who are often exposed to high temperature environments. The rest of the ordinary craftsmen do not need to use asbestos gloves at all. For example, the craftsmen who move bricks directly use pure cotton gloves.
In the field of construction, asbestos can be made into asbestos cement pipes, asbestos cement tiles, asbestos cement boards, various asbestos composite boards, and so on.
These products were excellent in terms of heat insulation and sound insulation. However, asbestos materials were contaminated. Li An would find a way to replace them with other materials instead of using conventional building materials made of asbestos materials. Moreover, asbestos materials also had their flaws. For example, their resistance to impact was relatively low. Once they encountered a large external force, they would break and collapse. There was a certain risk. In places with higher requirements for strength, asbestos materials could never be used.
In industry, asbestos has more uses. Asbestos can be made into thermal insulation products. Asbestos is often used as a thermal insulation layer on the outer wall of the boiler and the pipe, which can improve the thermal efficiency of the boiler and reduce heat loss. Heat insulation for steam equipment can reduce the temperature of the workshop. For flammable and explosive departments such as petroleum refining, it can also reduce accidents. Refrigeration equipment uses asbestos insulation to improve the refrigeration effect. Heat insulation for the boiler room of vehicles such as cars and ships will not increase the temperature of the carriage or the cabin. In order to make full use of short-fiber asbestos and low-quality asbestos to reduce costs, asbestos and other materials are combined to make the following thermal insulation materials for relevant equipment. For example, magnesium carbonate asbestos powder, diatomite asbestos mud, calcium carbonate asbestos powder, clay asbestos powder, and so on are relatively cheap asbestos thermal insulation materials.
Ang Lee intends to apply some asbestos technology in the industrial field. For example, asbestos can be used to heat insulation materials inside many machines. Also, wear-resistant and high-temperature mechanical transmission parts can be produced with asbestos materials.
As for other applications, there are many. These require Ang Lee to slowly experiment, accumulate little by little, and finally make qualified and satisfactory products.
Looking at the fire cloth Ang Lee took out, Guo Ziyi gently took it, carefully observed it, and rubbed it with his hands to feel the quality of the fire cloth.
"Assistant Minister Li, this is the fire cloth?"
Guo Ziyi seemed to be in disbelief. He had never seen fire cloth in his life, only heard of it, so he could not be sure that the cloth in front of him was fire cloth.
It was very simple to test whether the cloth in front of him was fire cloth or not. All he had to do was dirty the cloth, then roast it in the fire to see the result.
If the piece of cloth in his hand not only could not be burned, but could also become cleaner as it burned, then it would undoubtedly be Fire Washed Cloth. If it did not have this property, then it would not be Fire Washed Cloth. There was no doubt about this.
"Assistant Minister Li, why don't we give it a try?"
Guo Ziyi's interest was piqued.
Ang Lee gave a look to the technician beside him to get a brazier. He himself took a brush and ink, and wrote a few big words on the fire cloth.
"General Guo, haha! Well written. "
Guo Ziyi said happily, and looked at the technician who was walking over with the brazier.
There was a raging fire burning in the brazier. The flame was more than a foot tall, and it was obvious that it was a raging fire. It was a raging fire, a raging fire that could swallow everything.
Ang Lee picked up the fire cloth with the words written on it and threw it into the brazier without hesitation. He let the fire roast the cloth, and he was not worried at all. Ang Lee was confident in his skills. Moreover, he had experimented a few days ago, and the fire cloth could withstand the heat of a big fire. It would not burn at all, so there was no need to worry.
Guo Ziyi's eyes were fixed on the fire cloth when it was thrown into the fire. How could he miss the chance to witness a miracle?
"Oh my! It really didn't burn. That's amazing! "
Guo Ziyi said excitedly when he saw that the cloth was not burned.
Ang Lee smiled, and gently picked up the hot fire cloth with a pair of pliers. He swung it in the air a few times, and when it cooled down a little, he rubbed it hard with his hands to remove the stains.
Sure enough, under Ang Lee's manipulation, the words "General Guo" were completely removed. There was nothing left on the fire cloth, and it looked very clean.
"General Guo, take a look and see if it's as good as new."
Ang Lee said proudly.
Guo Ziyi's face was full of praise. He thought for a while, and said, "Assistant Minister Li is really amazing. You even made the fire cloth. Does His Majesty know about this?"
"There's no need to tell His Majesty about such a small thing. It's not worth mentioning, not worth mentioning."
Ang Lee said with a smile. Compared with the Thousand Mile Sound Transmission Plan, this fire cloth was really too ordinary. Moreover, although the fire cloth was not afraid of fire and had great application prospects, it was after all contaminated and could not be used to make clothes, unless it was used for special purposes. For example, the lining of a firefighter's uniform could be made with fire cloth.
However, Guo Ziyi obviously did not know the harm of the fire cloth, because in the legends of the Tang dynasty, there was no record of the fire cloth's harm to the human body. This object was almost praised to the sky, so how could he belittle it at all?
"Assistant Minister Li, it's good to use such a good fire cloth to make clothes for the soldiers. In this way, they don't have to wash clothes often, and they won't be burned when the enemy attacks them. It's good stuff!"
Guo Ziyi said.
Ang Lee waved his hand and said, "Absolutely not. The fire cloth is expensive to make. Only General Guo can think of using it to make clothes for the soldiers. It's too expensive, too expensive. No, absolutely not."
You've already exceeded your reading limit for today. If you want to read more, please log in.
Login
Select text and click 'Report' to let us know about any bad translation.
