What are the main ingredients of this product?
The main ingredients of this product are related to its efficacy and characteristics, which are crucial. Although "Tiangong Kaiwu" does not describe the specific ingredients of various products in detail, it can be deduced a little according to the craftsmanship and recorded methods at that time.
Taking ceramics as an example, its main component is clay. The book talks about making tiles, "where mud is used to make tiles, it is more than two feet of digging the ground, and sand-free clay is selected", which shows that clay is selected for tile making. Clay is used in ceramic production to provide a foundation for shaping, and can be fired into strong utensils. And clay from different origins, due to the difference in mineral composition, makes ceramics show different colors and textures. If the clay content in some areas is high in iron, the fired ceramics may be red-brown.
In metal products, such as smelting iron, the main raw material of iron is iron ore. The book records the method of smelting iron, "Where there is an iron field, its iron shallow floating soil surface does not produce deep holes; it proliferates flat sun, but does not produce high mountains", which can know the mining location of iron ore. After smelting, iron oxide in iron ore reacts with reducing agent, and iron is reduced and precipitated. The smelting process or adding a flux such as limestone helps to remove the veins in the ore and obtain pure iron. In iron products, depending on the use or adding other ingredients, such as controlling the carbon content during steelmaking, can make the steel have different hardness and toughness.
Looking at papermaking, its main components are derived from plant fibers. " Where paper is made of bark and mulberry, hibiscus film and other materials, it is leather paper, and those who use bamboo hemp are bamboo paper ". The bark, mulberry, bamboo hemp, etc. are rich in plant fibers. After soaking, cooking, pounding and other processes, the fibers are separated and refined, and then copied and dried into paper. Plant fibers give paper flexibility and writing bearing function.
To sum up, the main ingredients of products are different. Clay is for ceramics, iron ore is for metals, and plant fibers are for paper. They are all key elements that determine the basic properties and uses of products.
What are the chemical properties of this product?
This product has a variety of chemical properties. It is mild in nature and not easy to react violently with common substances. If it meets water at room temperature and pressure, it is only slightly soluble, and does not produce intense boiling or heat release. It only melts slowly into it and becomes a uniform state.
And it has a certain stability. In ordinary light and air flow environments, it can maintain its inherent quality and is difficult to be oxidized or decomposed. When encountering weak acid and alkali agents, it does not change rapidly. Only under severe conditions of strong acid and alkali and heating, it gradually begins to change and the structure changes slightly.
Furthermore, it has a certain flammability. However, the ignition point is quite high, and it is not easy to ignite unless it encounters an open flame or a hot topic source. And when burning, there is no thick smoke and pungent odor, only a small amount of common oxides are produced, and the pollution to the surrounding environment is slight.
It has adsorption properties, which can adsorb some tiny particles and impurities, and can agglomerate impurities in a specific liquid or gas system, increasing the purity of the system. This adsorption property is selective and has a good affinity for specific types of particles, which can be used for separation and purification processes.
Its volatilization is extremely weak. Under normal circumstances, there is little loss due to volatilization, and it can maintain its original quantity and quality for a long time. When storing and using, there is no need to take complex measures to prevent volatilization.
What are the uses of this product?
This product has a wide range of uses and can be used in many fields. It can help with farming and mulberry. Its texture is solid and durable, and it can be used to make agricultural tools, such as ploughshares, to break the soil and open ridges, making the land easy to cultivate, improving agricultural efficiency, helping the growth of crops, and ensuring the hope of a bumper harvest.
It is also indispensable in civil construction. It can be used by craftsmen to create various tools, such as axes and saws. Axes can be used to cut trees for materials, and saws can cut wood for materials. It can help craftsmen build houses and pavilions, making the building towering and sheltering the wind and rain for the people.
It also has important uses in military conquest. It can be used to cast weapons, such as swords, guns, and halberds. The sword is sharp and can kill the enemy in front of the battle, and the gun and halberd are strong and can protect the security of the stronghold. Soldiers hold it, fight bravely, defend their homes and country, and protect the peace of one side.
It also has many conveniences for daily use. It can be used to make living utensils, such as scissors, which can cut clothes and make clothes decent; knives can cut ingredients, so that they can be used for cooking. Various uses, to a large extent, are essential for life, production, military and many other aspects. They are of great significance to people's livelihood, national defense, etc., and play a key role in promoting the development and progress of society.
What should be paid attention to in the storage and transportation of this product?
When storing and transporting this product, the following things should be paid attention to:
When storing, the temperature and humidity of the environment should be the first priority. It should be placed in a cool and dry place to avoid sun exposure and humidity. If it is in a place with high temperature and humidity, the product may be moldy due to water vapor erosion, and the performance will also be damaged. For example, silk fabrics are perishable when wet, and color fades and changes when they are high in temperature. Therefore, the temperature of the warehouse should be controlled in a moderate range, and the humidity should also be appropriate. For example, it is better to use equipment with temperature control and humidity control.
Furthermore, pay attention to ventilation conditions. The storage place needs to be well ventilated to allow air circulation, so as to avoid odor accumulation and bacterial growth. Like storing grains, the ventilation is poor, and the grains are prone to heat and mildew, which makes them unusable.
As for transportation, the packaging must be solid. Suitable packaging materials should be used to ensure that the product is not damaged by shock and collision during transportation. If transporting porcelain, it must be padded with thick and soft objects to prevent it from being damaged. And the choice of transportation means is also important, depending on the characteristics of the product. If it is a fresh thing, it is necessary to choose a fast and temperature-controlled transportation method to ensure its vitality.
At the same time, the transportation process needs to be weatherproof and dustproof. If precision equipment is transported, it will rust in case of rain, and dust will hinder its operation. And transportation personnel should also be well protected and operate according to regulations, so as not to damage the product due to carelessness.
All of these are for those who should pay attention to the storage and transportation of this product, and must not be ignored.
What are the safety precautions when using this product?
The safety precautions when using this product are as follows:
First, read the instructions carefully before use. When using utensils, you must first clarify their usage, characteristics, and taboos. If you use a crossbow, you will not know the degree of relaxation and the method of arrows. If you use it rashly, you may hurt yourself or others. The same is true for this product. All the details are related to the safety of the user. Be sure to study it in detail and do not skip it.
Second, operate in order. Everything has its own order, and if it is out of order, it will be chaotic. Take casting swords as an example. Iron mining, calcining, tempering, and quenching each have their own time. If you are wrong, the sword will not be strong. The operation steps of the product are established, and when they are followed in sequence, they cannot be jumped or reversed, so as to ensure stable operation and avoid disasters.
Third, avoid dangerous places. The aura of dangerous places is surly, and things are prone to accidents. If you use this product on the side of a cliff, near water and fire, if you are not careful, it will cause danger. And places with humidity, high temperature, and strong earthquakes are not suitable places. The utensils are vulnerable and endanger the person.
Fourth, place it in a proper place. Things have their place, and they will last for a long time. When the product is used up, it should be placed in a dry, cool, and difficult place for children. If you dispose of it at will, or it is damaged, or it is dangerous for children to accidentally touch. For example, a treasure is hidden in a secret room, so that it can be protected.
Fifth, always check the status. Utensils are used for a long time, and they are prone to hidden diseases. If a boat travels on water, often observe its seams and ropes, and repair them if they are sick before they can go safely. Products also need to be inspected regularly to check whether their appearance is damaged or their function is abnormal. Early detection and early treatment, prevention of micro and gradual progress.
Sixth, do not change the structure without authorization. The structure of utensils is carefully made by craftsmen, and there is a subtle way. Change it without authorization, such as dismantling the house beam for rotten wood, and the mantle will fall. Non-professional people should not touch the structure of the product lightly, so as not to damage its safety performance and fall into danger.
