No Regrets In Flourishing Tang

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The advantages of Asbestos are obvious. Not only can it be thermally insulated, but once it is dirty, it does not need to waste detergent. It only needs to be placed in the fire for a period of time, and the smudges on it are cleaned, which is time-saving and labor-saving , Very convenient.

However, because Asbestos until now is a special material that is sometimes not available in China, the price is ridiculously high, and even cannot be measured by price. It is an invaluable treasure. Therefore, although Asbestos has very superior performance, there is no one. I will choose to use Asbestos to make clothes for myself, but I ca n’t buy this kind of cloth. Although Emperor can get Asbestos occasionally, it is also treasured as a treasure, and even used as my own funerary when he dies. In his own Earth Palace, which caused great waste, and also caused Emperor’s descendants to question the existence of Asbestos.

The root of all this is that for thousands of years since the Chinese Empire, no one has ever been able to make Asbestos, and this has caused this kind of cloth to be extremely rare. Even a few people can see it. Most people have only heard of that’s all. And Li An naturally knows that Asbestos is so-called asbestos, a very common material. Research & Development and manufacturing are not difficult. As long as you give Research & Development time, these materials can be manufactured, and at this moment, asbestos has obviously been An is made.

There are many asbestos mines in the West, and there are also asbestos mines in the territory of the Great Tang Empire, about Shuzhong area, the output is not small, and the ore used by Li An to study Asbestos comes from Shuzhong area The craftsmen specifically searched for it according to the requirements of Li An. As a result, they quickly found the asbestos mine and shipped the first batch of asbestos ore to Chang’an City for Li An to conduct research.

In fact, asbestos is a natural mineral. It is a strange stone from a distance. The most common type of asbestos mine is called serpentine asbestos. It has excellent alkali resistance and is hardly affected by alkali corrosion, but The acid resistance is poor, and very weak organic acids can precipitate magnesium oxide in asbestos, which reduces the strength of asbestos fibers.

There is also an amphibole asbestos, which belongs to the monoclinic structure. The color is generally darker, the specific gravity is larger, it has higher acid resistance, alkali resistance and chemical stability, and the corrosion resistance is also better. In particular, blue asbestos has good filtration performance, and has important characteristics such as protection against chemical poisons and purification of air contaminated by radioactive substances.

The distinction between serpentine asbestos and amphibole asbestos is that asbestos is ground in a mortar. Serpentine asbestos forms chaotic mats, and the fibers are not easy to separate. After grinding, amphibole asbestos is easily divided into many fine fibers. Iron-free asbestos is white, and iron-containing asbestos is blue in different shades. The silky luster of the fibrous aggregate, and the luster of the split fiber is dull.

Asbestos is a collection of fine tubular fibers arranged in parallel with each other, and can be split into very fine asbestos fibers, the diameter can be as small as 1 microns, after completely split and opened, it is difficult to observe with naked eye, so it is a good bacterial filter material.

Asbestos with a fiber length of more than 8 mm is mixed with 20-30% cotton yarn to make fire-resistant textile materials, and shorter fibers can be used to make asbestos plywood, asbestos boards and insulation materials. Blue asbestos has unique properties of preventing chemical poisons and purifying radioactive particles to pollute the air. It is used to make various high-efficiency filters. The asbestos paper manufactured with it has a filtration efficiency close to 100%.

Asbestos fibers with vertical fissures are called transverse fibers, and generally have a length of less than 30 cm. Serpentine asbestos are mostly produced in this form. Asbestos fibers extending in the direction of the parallel fissures are called longitudinal fibers, and their length can reach more than one meter. Blue asbestos Most of them are longitudinal fibers, and the other two types of asbestos are both.

Asbestos deposits are produced in ultrabasic rocks or metamorphic dolomites. Asbestos deposits form cotton veins in rock fissures a few millimeters or centimeters wide. The ore body consists of clustered cotton veins.

Serpentine asbestos is widely distributed, accounting for more than 9% of the total output of asbestos. It is mainly formed in the contact zone between the intrusive body and dolomite or dolomite limestone and the network fissures of serpentine formed by metamorphism of ultrabasic rock.

Amphibole asbestos are mostly formed by the replacement of iron-bearing siliceous rocks with sodium and magnesia under hydrodynamic conditions. The largest serpentine deposit is located in the western Ural mountain range.

The asbestos resources of the Great Tang are relatively scarce, but for the use, it is also sufficient. After all, asbestos is very polluting and can easily cause physical harm to people. It must be done to a certain extent. Restricted, for example, many old houses in later generations use asbestos tiles for tiles. Although the price is cheap, it will not cause much harm to users, but for the craftsmen who produce asbestos tiles, the physical damage suffered It is very large, so it is better not to carry out mass production. After all, many materials can replace asbestos, and a certain amount of Great Tang is enough.

In later generations, the use of asbestos is very extensive. More than 9% of the asbestos used in the whole world is chrysotile asbestos. Its fibers can be split into very fine meta fibers and have excellent spinning properties. Crocidolite and asbestos account for less than 1% of the total asbestos consumption and are mainly used in shipbuilding. Stracholite asbestos is a type of asbestos similar to talc and is often used as industrial talc.

Asbestos fiber can be woven into yarn, thread, rope, cloth, packing, etc., as the material or lining of transmission, heat preservation, heat insulation, insulation and other components, it is mainly used to make asbestos board and asbestos paper fire board in construction. Insulation pipes and kiln mats, as well as materials for heat preservation, heat protection, insulation and sound insulation.

Asbestos fiber can be mixed with cement to make asbestos cement tile, board, roofing board, asbestos pipe and other asbestos cement products. Asbestos and asphalt can be blended to make asbestos asphalt products, such as asbestos asphalt board, cloth (linoleum), paper, brick and liquid asbestos paint, putty for embedding cement pavement and expansion cracks, etc. Insulation, insulation, acid and alkali resistant materials and traffic engineering materials.

Asbestos is bonded with phenolic, polypropylene and other plastics in national defense, and can be made into anti-ablation materials for rockets, aircraft wings, fuel tanks, rocket tail section nozzle tubes and torpedo high-speed launchers, ships, automobiles and aircraft, tanks, ships In the sound insulation and heat insulation materials, asbestos and various rubbers are mixed and molded, they can also be used as sealing materials for liquid rocket engine connectors. Asbestos and phenolic resin laminates can be used as heat protection materials for the head of the missile. Orb asbestos can also be used as chemical-proof and atomic-radiation-resistant liners, partitions or filters, acid-resistant packing, rubber plates, etc.

Due to the softness of asbestos fibers, it has the characteristics of insulation, heat insulation, sound insulation, high temperature resistance, acid and alkali resistance, corrosion resistance and wear resistance. It has many uses in commercial, public utilities and industrial facilities, such as refractory asbestos textiles, transport Asbestos cement products such as water pipes and insulating boards, and various insulation materials are widely used in construction, electrical appliances, automobiles, household products, etc.

Asbestos materials are used in all aspects of life. However, in order to protect the health of the asbestos producers, Li An will not study too much asbestos materials, such as labor insurance materials, asbestos boots, and asbestos gloves. The replacement of pure cotton materials does not require the development of must. Even if asbestos gloves and asbestos boots are developed, they are also used by special people, such as blacksmiths and firefighters who are often exposed to high temperature environments. Necessities for gloves, such as artisans who move bricks, just use pure cotton gloves.

In the construction field, asbestos can produce asbestos cement pipes, asbestos cement tiles, asbestos cement boards and various asbestos composite boards, etc.

The performance of these products in terms of heat insulation and sound insulation is excellent, except that the asbestos material is polluted. Li An will find a way to replace it with the rest of the materials, instead of using conventional building materials that use asbestos materials. Moreover, asbestos The material is also flawed. For example, the impact strength is relatively low. Once it encounters a large external force, it will break and collapse, which has a certain risk. In places with high strength requirements, it is absolutely impossible to use asbestos.

In terms of industry, asbestos is more useful. Asbestos can be made into thermal insulation products. Asbestos is commonly used on the outer wall of the boiler and the duct to make the insulation layer, which can improve the thermal efficiency of the boiler and reduce the loss of thermal energy. Insulation of steam equipment can reduce the temperature of the workshop. It can also reduce accidents for flammable and explosive sections such as petroleum refining. Refrigeration equipment adopts asbestos insulation to improve the refrigeration effect. Insulation of the boiler room for vehicles such as cars and boats will not increase the temperature of the cabin or 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 insulation materials for use in related equipment. Such as magnesium carbonate asbestos powder, diatomite asbestos mud, calcium carbonate asbestos powder, clay asbestos powder, etc. are relatively inexpensive asbestos insulation materials.

Li An intends to apply some asbestos technology in industry, such as the thermal insulation material in many machines, asbestos material can be used, as well as wear-resistant and high-temperature mechanical transmission components, asbestos material can also be produced.

As for the application in other areas, there are also many of them, which all require Li An to try slowly, little by little to accumulate, and finally make qualified and satisfactory products.

Looking at the Asbestos taken out by Li An, Guo Ziyi gently took it over, carefully observed it, and rubbed it with his hands to feel the quality of Asbestos.

“Minister Li, this thing, Asbestos?”

Guo Ziyi seems to be a bit unbelievable. He has never seen Asbestos in his life, but has only heard of it. Therefore, he is not sure that the cloth he is seeing is Asbestos.

It is also very simple to check whether the cloth in front of you is Asbestos, as long as the cloth is dirty, then put it in the fire and roast, and see the result.

If the piece of cloth in your hand will not only be burnt out, but also burn more and more clean, it is Asbestos undoubtedly, and if there is no such performance, it is not Asbestos, which is beyond doubt.

“Minister Li, shall we try?”

Guo Ziyi is interested.

Li An made a wink and asked the side tech talents to get the brazier, and he took the brush and ink himself and wrote a few large characters on Asbestos.

“Guo Great General, haha! Nicely written.”

Guo Ziyi said happily and looked at the technical talents who were walking on the brazier.

In the brazier is a burning blaze. The height of the flame is more than a foot high. At first glance, it is a blaze. A big blaze is enough to swallow all the blaze.

Li An picked up the handwritten Asbestos and threw it in the brazier without the slightest hesitation, letting the fire scorch the Asbestos without any trace of worry, because Li An had confidence in his technology, and, before Experiments have been done in recent days, and Asbestos is indeed able to withstand the roasting of large goods, and it will not be burned at all, so there is no need to worry.

When Asbestos entered the fire and burned, Guo Ziyi’s eyes were always on Asbestos. This is the time to witness the miracle. How can he miss it?

“Aiya! It’s really not lit, so amazing!”

Seeing the cloth was not ignited, Guo Ziyi said excitedly.

Li An laughed, gently picked up the hot Asbestos with pliers, and shook it in the air a few times. After Asbestos had cooled slightly, he rubbed hard with his hands to remove the stains on it.

Sure enough, under Li An’s operation, the four characters of Guo Great General were completely cleared, nothing was left on the Asbestos, and the cloth looked very clean.

“General Guo, see how it looks like the new one.”

Li An said proudly.

Guo Ziyi’s expression of appreciation on the face, thought for a moment, opened the mouth and said: “Minister Li is really amazing, actually made Asbestos out, does this Your Majesty know?”

“For these little things, why not tell Your Majesty, not worth mentioning, not worth mentioning.”

Li An said with a smile, compared with Thousands of Miles Sound Transmission Project, this Asbestos is really too ordinary, and although Asbestos is not afraid of fire, it has a strong application prospect, but after all, it is polluted and cannot be used to make clothes Unless it has a special purpose, such as the inner lining of firefighters’ clothing, it can be manufactured using Asbestos.

However, Guo Ziyi is clearly not aware of the hazards of Asbestos, because in the legend of Great Tang, not at all records anything about the harmfulness of Asbestos to the human body, and it is almost exaggerating this object to the sky. How could it be possible? What is the slightest depreciation?

“Minister Li, such a good Asbestos, is also good for making clothes for soldiers, so that you don’t have to wash your clothes often, and you won’t be ignited when you encounter enemy fire attacks, good stuff!”

Guo Ziyi said.

Li An waved his hand and said: “This is absolutely not going to work. Asbestos is expensive, and it can be used to make clothes for soldiers. Only General Guo can figure it out. It’s too expensive, too expensive. No, absolutely not.”

In fact, Asbestos is not expensive at all, much cheaper than the Shujin produced in Shu, but Li An is inconvenient to tell Guo Ziyi about the dangers of Asbestos. After all, in the entire ancient Chinese Empire, everyone looked up to Asbestos. , Li An does not want Asbestos to fall to the altar.