Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body. Suitable for stage performance and various modeling designs. (The ignition point of ordinary fireworks is between 800℃- 1200℃, which is easy to cause harm to human body when burning. ) Cold fireworks have high technology content and are attracted by people because of environmental protection and pollution-free. Cold fireworks is a new type of high-tech fireworks product, which has low temperature, less smoke and high safety when set off. Can be widely used in stage performances, conferences and exhibitions, wedding etiquette and other occasions, can make your activities safe, environmentally friendly and distinctive; Cold pyrotechnic products have many functions. Usually, the characteristics of various products are applied to the art combination, and the ideal effect can be achieved. At the same time, it is also a branch of festive supplies.
What are the cold fireworks and fire passbook mentioned in Tomb Raider Notes? This kind of thing in reality?
Fire folding (folding)
Fire sickle, flint and fire passbook are a set, and fire passbook is a simple lighting and lighting appliance, which is easy to carry. The method of making Fructus Pyramidae is to soak the white (red) sweet potato vine in water, take it out and beat it flat, then soak it in cotton and reed, beat it again, dry it in the sun, and add nitrate, sulfur, rosin, camphor, etc. Fold them into flat tubes or twist them into ropes, put them in bamboo tubes at night as if they were not on fire, and burn them immediately when they are used.
Who invented matches? According to records, the earliest matches were invented in 577 AD in China. At that time, during the Southern and Northern Dynasties, wars were frequent, and the Northern Qi Dynasty was under attack between Scylla and Charybdis, and materials were scarce. Cooking has become a problem because of the lack of kindling. At that time, a group of ladies-in-waiting magically invented matches, and the ancient matches in China were just a kindling material. Later, it was introduced to Europe during the period of Kelpolo. Later, on this basis, Europeans invented modern matches that were once called "matches". "External fire" can make a fire by friction. The man who invented this kind of match was Walker of England. 1826, he made paste-like antimony sulfide and potassium chloride from gum and water, coated them on matchsticks, and pulled them on sandpaper to make a fire.
However, the matches produced in the early stage have two fatal shortcomings: (1) Yellow phosphorus is very rare, and it is easy to spontaneously ignite when heated, which is very dangerous; (2) Yellow phosphorus is toxic, and workers who make matches will be poisoned if they are not careful. 1852, the safety match was invented by the Swedes from Tatstrom. Using phosphorus and sulfur compounds as ignition materials, it is necessary to rub the box coated with red phosphorus to make a fire, which improves the safety.
Since matches were invented in the Northern and Southern Dynasties, how did the predecessors make a fire? It turns out that the ancients used two sticks to rub against each other to make a fire, and then used flint and iron pieces, but it took a long time to make a fire, just a minute or two. The appearance of matches makes people's lives more convenient. In modern times, lighters and electronic lighters have gradually replaced the position of storing matches, but matches have its unique side, that is, the flame color it produces is the most beautiful.
The appearance of matches not only brought convenience to our human life, but also contributed to the civilization and progress of the world. I believe many people have read The Match Girl written by Andersen. This well-known fairy tale was written in 1848. At that time, the invention of friction matches took only ten years, but he also wrote a fairy tale "Light Box" in 1835, which was about magic. Or some people think that matches are unimportant things, but have you ever thought that without matches, our life might be as inconvenient as drilling for a fire?
Therefore, matches that really rely on friction were invented later than lighters!
Compared with traditional fireworks, cold fireworks have the characteristics of little smoke, low flame temperature and light smell. Lights, flames and flaming flowers dance when they are set off, which can produce bright fireworks and fireworks viewing effects, and will not explode, produce thermal residue and have low risk. Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body.
Cyclone shovel: hollow copper bar, closed inside. Nine wavy leaves made of fine steel are inserted at the front end of the copper rod like nine petals. There is a special slot lock spring in front of the copper rod. When the steel sheet leaves, it is firmly fixed by the lock spring. There is a rocker behind the copper rod.
References:
baike.baidu/view/957350? WTP = TT
What is cold fireworks?
Cold fireworks are made of metal powder with low ignition point and processed according to a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body. Suitable for stage performances and wedding ceremonies. If you need to order cold fireworks, it is recommended to use the cold fireworks produced by Xinghui Cold Fireworks Factory. The cold fireworks produced by other factories have good quality and favorable prices. Widely loved by consumers. I hope my answer is helpful to you and can be adopted.
What is cold fireworks?
Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body. Suitable for stage performance and various modeling designs. The ignition point of ordinary fireworks is between 500℃ and 800℃, which is easy to cause harm to human body when burning. Cold fireworks are favored by people because of their high technology content, environmental protection and no pollution. Cold fireworks is a new trend of fireworks development in recent years, which has been shown in Shanghai APEC meeting, Sydney Olympic Games, 2002 Japan-Korea World Cup and the Ninth National Games. Cold fireworks are the high-tech crystallization of modern fireworks.
Compared with traditional fireworks, cold light fireworks have the characteristics of less smoke, low flame temperature and light smell. And lights, flames and flaming flowers are flying during the discharge, which can produce bright fireworks and fireworks viewing effects, and has the advantages of no explosion, no burning residue and low risk. They are more and more favored by consumers, and now they are widely used in stage, marriage, family, opening ceremony and so on …
What is cold fireworks?
The main raw material of cold fireworks is single base powder, which is directly crushed into yellow powder fiber with retired military single base propellant. The content is 12.2%- 12.4%, the explosion point is ≥ 178℃, the ash content is ≤ 0.4%, the moisture content is ≤ 6%, and the combustion is smokeless and slag-free.
Sponge titanium, with a density of about 4.5g/cm, is stable in air and its flame temperature is extremely low, theoretically 86℃-89℃. Cold fireworks got its name from this. When burning, Mars is silvery white and forked, smokeless.
Cold fireworks, also known as cold light fireworks, electronic fireworks and stage fireworks; It is called cold fireworks because this product was originally used on the stage. Different from traditional fireworks, they are lit by electricity instead of the traditional lighting method (lighter). After the popularization of the Internet, it is gradually used to build various stages such as weddings, bars, cultural evenings, performances and opening ceremonies as special effects.
Cold fireworks are not the kind of fireworks without temperature. Imagine that fireworks are not very dangerous if they have no temperature. But because this kind of fireworks is lighter than other kinds of fireworks products, and it is suitable for indoor close-range discharge. Compared with other kinds of fireworks products, cold fireworks are safer and more environmentally friendly.
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What is the name of the machine that lights cold fireworks at the wedding?
Cold fireworks are placed in the roadside flower pavilion, and spotlights are used to illuminate the entrance of newcomers, so that newcomers become the focus of the audience.
What is a cold flame?
Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body. Suitable for stage performance and various modeling designs. (The ignition point of ordinary fireworks is between 800℃- 1200℃, which is easy to cause harm to human body when burning. ) Cold fireworks have high technology content and are attracted by people because of environmental protection and pollution-free.
What is the name of the machine used to light cold fireworks at the wedding? Can I buy it on Taobao?
It is the cold fireworks igniter sold by Taobao.
Is cold fireworks safe? Could something be burning?
Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body. Suitable for stage performance and various modeling designs. (The ignition point of ordinary fireworks is between 800℃- 1200℃, which is easy to cause harm to human body when burning. Cold fireworks are high in technology and attracted by people because of their environmental protection and pollution-free.
What is this? Let off cold fireworks for 30 minutes.
Compared with traditional fireworks, cold fireworks have the characteristics of little smoke, low flame temperature and light smell. Lights, flames and flaming flowers dance when they are set off, which can produce bright fireworks and fireworks viewing effects, and will not explode, produce thermal residue and have low risk. Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion. Cold fireworks have a low ignition point, which is 60℃-80℃ and the outside temperature is 30℃-50℃, which is harmless to human body.