What harm does tin wire do to people? What is the composition of solder wire? Is it harmful to human

Tin is not harmful to the human body, but metal lead is harmful to the human body. In ancient times, people used tin flakes to purify well water, and now some food products (such as compressed biscuits, etc.) are wrapped in a layer of tin foil to prevent spoilage. Therefore, metal tin is known for "holding water and sweet water, holding wine and mellow wine, storing tea flavor unchanged, and arranging flowers for a long time".

You can use it with confidence. According to the analysis of metal theory, tin has excellent properties and heat dissipation, coupled with its unique luster and easy processing characteristics, it has been made into various utensils since ancient times. As early as more than 1,000 years ago, the ancients knew how to use tin cans to store tea, and exported the tea stored in tin cans to Japan and Southeast Asia, so that China's "tea ceremony" and tin tea cans are popular in these countries and have been passed down to this day.

According to the inspection of relevant institutions, the shelf life of tea is only one and a half years under general packaging conditions, and even shorter under humid or dry climate conditions. Due to the strong airtightness of the tin, it has excellent freshness and air permeability, which can maintain the freshness and aroma of tea for a long time. Storing coffee beans, cigars, cigarettes, is also very effective.

"Warm wine" has always been a traditional drinking custom in China, and warm wine is easy to be dissipated in the human body, making people not easy to get drunk. Due to the high thermal conductivity of tin and easy heating, it has an excellent effect of warming wine with tin, and because of the good ionic effect of tin, it can also increase the original flavor of the wine and make the wine more sweet and refreshing. Modern people drink beer or wine and often add ice cubes to get a refreshing feeling.

Due to its good properties and heat dissipation effect, the tin ware can immediately reduce the temperature of the wine, and it is refreshing when drinking. Tin is a valuable metal second only to gold and silver, and it has the effect of absorbing impure substances, and in the past, in places with poor water quality, people would put tin plates at the bottom of wells to purify the water. Because tin is easy to react with arsenite acid, cyanic acid, etc., it also has a certain degree of toxicity.

Tin does not have the peculiar smell of metal, and pure tin products do not harm the human body at all. Since tin has the effect of absorbing impure substances, vases made of tin are not easy to become muddy with water, which can keep flowers for a long time.

Tin is a trace amount of pocydrin in the human body, and when used appropriately, it contributes to good health.

Tin is a silvery-white soft metal with a low specific gravity of 232, and if you put it in a briquette furnace, it will melt into a mercury-like liquid. The tin is soft and can be cut with a knife. Tin is chemically stable and is not easily oxidized by oxygen at room temperature, so it often retains its silver shine.

Tin is non-toxic, and people often plate it on the inner wall of copper pots to prevent the copper warm water from producing toxic patina. Toothpaste shells are also commonly used to make tin (toothpaste shells are made of two layers of tin ** and one layer of lead. In recent years, China has gradually replaced tin with aluminum to make toothpaste shells).

Solder, also containing tin, generally contains tin 61, some are lead and half tin, and some are composed of 90 lead, 6 tin and 4 antimony.

The solder wire is composed of two parts: tin alloy and additives, and the alloy composition is divided into tin-lead and lead-free additives evenly poured into the middle of the tin alloy.

1. Toxic heavy metals: The lead in solder is a toxic heavy metal, which has great harm to the human body, even if it is lead-free solder, how much of it contains a certain amount of lead. The limit of lead smoke in GBZ2-2002 is very low and very toxic.

2. Cause vision loss: The smoke produced during soldering, containing chemicals and tin smoke, is also very harmful to the eyes, which will lead to vision loss and weaken the ability to distinguish colors in the long run.

3. Release toxic gas: The solder generally used in the factory now contains about 60% lead and 40% tin because of its low melting point, so the solder itself is toxic. Most of the solder on the market is hollow, containing rosin, rosin itself is a chemical agent, and the gas produced by the melting and volatilization of the rosin in the tin wire during soldering is a toxic gas, which is harmful to the human body.

Solder wire is a metal material widely used in industrial fields such as electronic product manufacturing. Although solder wire has its own advantages and characteristics in the production and use process, it also has potential hazards. So, is solder wire toxic?

What is the danger to the body? Next, we will ** this question in detail.

Health hazards.

The chemical composition in solder wire is a potential risk to human health. Studies have shown that solder wire contains toxic heavy metal elements such as cadmium, lead, tin, and silver, the most dangerous of which is cadmium, which can affect the normal operation of many body organs. For example, inhaling cadmium can cause respiratory diseases such as pneumonia, chest tightness, laryngeal inflammation, etc.

If inhaled or exposed to it for a long time, it may cause serious malignant diseases such as lung cancer and liver cancer.

harm to the environment.

Solder wire will produce a large number of harmful gases and noise in the production process, which has a serious impact on the environment and ecological environment. Welding workers, manufacturers and the surrounding population can all be threatened. Therefore, corresponding protective measures should be taken during the production process.

How can I avoid contact?

Wear appropriate protective clothing and gloves to protect your hands and eyes, which will reduce direct contact with your eyes. Especially in the process of long-term operation, it is necessary to pay more attention to nursing measures.

Reduce the inhalation of harmful gases and dust, and choose appropriate ventilation equipment to make the air fresh, and workers are no longer threatened by harmful gases and dust.

For production enterprises, environmental protection management should be strengthened, harmful grinding gas and noise emissions should be controlled, environmental protection technology should be promoted, and production efficiency should be improved.

Conclusion It can be concluded that solder wire is toxic and has potential threats to both the body and the environment. The correct use of solder wire and the strengthening of environmental management can effectively reduce the harm of toxic heavy metals such as cadmium, lead, tin, and silver.

It is also important for consumers and workers to pay attention to the quality and use of solder wire, reduce exposure, and reduce the risk of stuffiness.