What protective masks do you need to wear for welding work

1. When welding operators work in the open air, the harmful substances generated by welding will not accumulate in high concentration, and they generally do not wear protective masks.

2. If you choose a dust mask, it should meet the requirements of the GB T 2626-2006 "Self-priming Filtering Anti-particulate Respirator" standard issued by the People's Republic of China in 2006. According to the relevant standards of the national occupational hazard limits, the particle size of welding fume particles is higher than that of ordinary dust.

The filtration efficiency of the filter element of the small, welding dust mask should reach above to ensure the effective filtration of welding fumes. Use self-priming filtering breathing masks in environments with high work intensity, narrow sites, large smoke and dust, and high ambient temperatures. It is recommended to choose KN100 protection level for the filter element.

The filter element is equipped with a filter box (sheet) that prevents soldering from generating harmful gases. In order to effectively prevent occupational injuries caused by harmful gases produced by welding.

First of all, it was learned that dust masks belong to special labor protection equipment in China, and the national standard GB2626-2019 "Self-priming Filtering Anti-particulate Respirator" must be implemented, which divides dust masks into three levels: KN100, KN95 and KN90. For example, Baoshunan's 3216 KN100 and 3219 KN100 dust masks can achieve more protection efficiency against ultra-fine dust above microns.

Smoke is actually tiny particles, you can wear a dust mask, but the welding smoke dust is relatively delicate, ordinary masks or low-grade masks are difficult to protect well, it is recommended to use KN100 grade.

According to previous work experience, because there are sparks flying everywhere in the electric welding environment, it is easy to burn the filter cotton, so it is recommended to choose a KN100 dust mask with a shield or a protective cover. At the same time, electric welding will be accompanied by high temperature, if it is very sensitive to odor, it can be used with activated carbon filter box to prevent toxic and harmful gases and protect against smoke and dust comprehensive filtration.

Here are some more experiences in choosing dust masks.

The protective effectiveness of dust masks depends on 2 aspects:

1. Filtration efficiency of filter cotton;

2. The air leakage rate after the mask is matched with the face;

The scientific selection of dust masks certified by the GB2626-2019 standard can help prevent lung damage. So how to choose a dust mask?

1) Choose a compound half-mask type: disposable masks are not suitable for long-term or occupational protection due to their high air leakage rate;

2) Choose KN100 level: high dust environment and low protection rate will lead to physical injury;

3) Choose a silicone mask, which has a relatively long service life, is soft and comfortable. Wear it for a long time, it is not easy to cause allergic reactions; Masks with high hardness are easy to cause facial indentation;

4) It is extremely important that masks come in large and small sizes. It is not recommended to buy those so-called universal models of masks, different people are tall, short, fat and thin, and have different face shapes.

5) There are two types of masks: covering the mouth and nose, covering the mouth, nose and chin, and it is recommended to use the latter, which is relatively comfortable;

6) It is recommended to choose a breathless mask: especially a dust mask with a double filter + double filter surface design, which has a longer service life and is relatively smoother to breathe.

Dust masks and face shields need to be worn during welding work.

There will be strict requirements on the work manual, and the unit will also equip the construction personnel with protective clothing.

Welders are required to wear professional welding masks, gloves and eye protection.

The respiratory protection of welders should be combined with the characteristics of the operation.

When working in the open air, the harmful substances generated by welding will not accumulate in high concentration, and the harm is light; As the last line of defense to protect workers' health, individual respiratory protection can not only be effective, but in many cases, the cost of personal protection is also lower than that of ventilation facilities.

The selection of respiratory protective equipment standards The selection of safe and effective dust masks should meet the requirements of the GB T2626-2006 "Self-priming Filtering Anti-Particulate Respirator" standard issued by the People's Republic of China in 2006. Use self-priming filtering breathing masks in environments with high work intensity and high ambient temperatures. Hope to adopt, thank you!

I think everyone should know why welders wear dust masks, because whether it is in electrical welding or the electronic industry, welding metal fumes and some fine dust particles will be produced. Metal fumes are extremely harmful to the human body, and ordinary welding rods contain a large number of metal elements such as iron, manganese, silicon, and chromium.

During electrical welding, a large amount of metal fumes are produced while melting the welding rod and weldments at high temperatures, and the metal dust contains more iron oxide, manganese oxide, etc., and the smoke and dust particles are not easy to dissipate, and they are easily inhaled into the lungs by the human body when suspended in the air.

3M Mask: 1Economical 3M welding dust mask, specially designed for welding operations to prevent metal smoke dust mask, the mask meets the American NIOSHN95 standard, the filtration efficiency is greater than 95%, the breathing valve design, and the breathing resistance is small.

2.The comfortable 3m welded dust mask is an upgraded version of the 8515 mask, with the same protective performance, the headband elasticity can be adjusted, making it more comfortable to wear, and the mask is also equipped with a 3m cold flow exhalation valve, which has low breathing resistance.

3.The big difference between the high-performance 3M welded dust mask and the 3M8514 mask compared with the previous two welded dust masks is that the outer layer of the mask is made of flame-retardant fabric, which has higher safety performance, and other properties are the same as those of 8515 masks.

4.The professional 3M welding dustproof mask is mainly composed of filter cotton and gas mask body, which is more suitable for long-term operation and wearing, with a filtration efficiency of more than 95%, and the mask body can be cleaned, which saves costs to a certain extent. Filter cotton is a consumable, and it needs to be replaced after about 3 to 5 days of use.

The filter cotton is lower than that of welded dust masks, which is more practical.

Wearing a mask when welding has a certain use, which can be used to reduce the harm of welding fumes and harmful gases to the body.

There are many types of energy** in modern welding, including gas flames, arcs, lasers, electron beams, friction and ultrasonics. In addition to being used in factories, welding can also be performed in a variety of environments, such as in the field, underwater, and in space.

Welding can be dangerous to the operator wherever it is, so proper precautions must be taken when performing welding. The possible injuries to the human body caused by welding include burns, electric shock, vision damage, inhalation of toxic gases, excessive ultraviolet radiation, etc.

Notes:

First, the length of the arc.

The length of the arc is related to the type of electrode coating and the thickness of the coating. However, short arcs should be taken as much as possible, especially low-hydrogen electrodes. Long arcs can cause stomatosis.

The short arc can avoid harmful gases such as O2 and N2 in the atmosphere from invading the weld metal and forming undesirable impurities such as oxides and affecting the quality of the weld.

Second, the welding speed.

The appropriate welding speed is based on the diameter of the welding rod, the type of coating, the welding current, the heat capacity of the welded object, the beginning of the structure and other conditions, and the corresponding changes can not be made. Maintain the right welding speed, and the slag can cover the molten pool well. All kinds of impurities and gases in the molten pool have sufficient time to float out, so as to avoid the formation of slag inclusions and porosity of the weld.

If the speed of the rod is too fast during welding, the shrinkage stress will increase when the welding part is cooled, causing cracks in the weld.

Because the high temperature generated by welding metal melts the metal in order to weld it together, that's the principle, but if some impurities have a lower melting point than the metal to be melted, then these metal impurities may vaporize and can cause lung cancer if inhaled, so you have to wear a mask.

Wearing a mask is always better than not wearing it at all, but during the training, the teacher said that the welding fumes are very small, many of them cannot be filtered by masks, and the masks are too stuffy to wear all day. The electric air supply in our factory is still very comfortable.

From the point of view of protection, it is best to buy a good electric air supply, such as 3M, Tekman and Opal, after all, the body is your own.

Yes, masks are effective in preventing germs from entering.

First of all, be sure to wear a mask.

Because a large amount of smoke, dust, and even toxic gases will be produced during the welding process, which will cause great harm to the human respiratory system. That's how welders' pneumoconiosis goes.

Some people work for a short time and the disease does not appear, but once discovered, they regret it, because the damage to the lungs caused by smoke and dust is irreversible, and once the harmful substances enter the lungs, it is a permanent damage.

Secondly, don't give up wearing a mask because you don't feel comfortable, life is paramount.

Finally, if you are engaged in welding work, it is recommended to wear a high-level protective mask, KN100 is currently the mask with the highest level of protection, with low breathing resistance and good protective effect.

Good luck with your work!

Solder wearing a mask can avoid harm. If there is a lot of dust in the factory, inhaling this stratification can lead to pneumoconiosis, so you should come up with a way to prevent it, wear a mask to see what kind of mask, only the kind of dust adsorption mask is useful, a very thin paper mask is useless, don't be too tired, pay attention to your own proportion, pay attention not to eat spicy and greasy things, drink a little more water, and pay attention to the combination of work and rest.

Solder considerationsWhen soldering, pay attention to wipe the soldering iron tip at any time to keep the soldering iron tip clean; The soldering time should be short, generally no more than 2s, and the soldering iron tip should be lifted immediately when the solder is melted.

The soldering table must be clean and orderly, and the sponge should be cleaned, if the sponge contains metal particles, or the sponge containing sulfur will damage the soldering iron tip. The soldering iron tip should be in contact with the weldment first, not with the solder wire first, because the molten solder drips on the preheated quilt at the end of the year, it is easy to produce solder joint virtual soldering, and preheating the welded part is an important means to prevent virtual soldering.

Wearing a mask on solder does not avoid harm.

Generally, masks can only be dustproof or antibacterial, and industrial-grade anti-harmful gas masks are needed for industrial harmful gases, so we should find a way to prevent them.

Protective masks with activated carbon can isolate and filter out the inhalation of many toxic and harmful gases and particles, and are important protective equipment. Thermal masks do not play the role of adsorption and filtration. Attention to protection of hazardous operations can significantly control and prevent the occurrence and development of occupational diseases.

Solder considerations

It is necessary to pay attention to wipe with a wet sponge before each soldering operation to remove the oxide and foreign matter on the soldering iron head, and pay attention not to use too much force, and avoid residue splashing and scalding people or burning materials.

The electric soldering iron should be plated with a layer of soldering on the soldering iron head before use, and the electric soldering iron should not be heated for a long time during use, so as not to burn out the soldering iron tip and the soldering iron core.

The above content refers to Encyclopedia - Solder.

It is good for welders to wear dust masks.

1. Welder is a type of welder.

2. Electric welder is a special metal welding job in the machinery manufacturing and machining industry. Welder is a type of work that uses appropriate welding methods, reasonable welding processes, appropriate welding equipment, and fillers of the same material or different materials to closely connect metal or non-metal workpieces.

3. Electric welder is a single type of work, and welders include: electric welding, gas welding, pressure vessel welding, submerged arc welding, gas shielded welding, flash welding, etc.