Description:Rockwool FELT is a kind of insulation materials with chosen high-quality natural rock as the main raw materials,such as basalt,dolomite,melted in the cupola,centrifugate into fiber in high speed by four rollers centrifuger and sparying a certain amount of binder,dust proof oil and moisture repel.
ROCKWOOL FELT have higher strength and better elasticity. The folded rock wool board with certain compression resistance has greater drawing strength, and it does not tend to peel off and has greatly improved durability.
The Advantage of Fireproof Rock Wool Insulation and Mineral Wool Insulation
1) Small coefficient of heat conductivity and good capability of heating preservation;
2) Excellent fireproof capability, Excellent sound absorption and sound insulation capability;
3) Green building materils and no harm for body;
4) The rock wool has higher and better elasticity;
5)The folded rock wool board with certain compression resistance has greater drawing strength, and it does not tend to peel off and has greatly improved durability.
6)The felt can be with wire or glassfiber for reinforced.
7)The size can be 1m or 1.2m width,length can be made according to client's request.
Zhengzhou Shanshui Radiation Protection Company's lead door, lead room, lead window, wall double lead engineering, etc. are mainly used for industrial flaw detection (X, γ ray), hospital radiation protection (CT room, X-ray room), the company has perfect quality Guarantee system, strictly implement GBZ117-2002 "Industrial X-ray flaw detection and health protection standards". Dedicated to radiation prevention with excellent quality, advanced performance, reliable quality and excellent service
Client: ionizing radiation site
★ Radiological diagnosis: perspective, film, fault, dental, X-ray machine, CT protection.
★ Radiation therapy: simulator, after-loading machine, 60C0 treatment machine, accelerator, X proton knife, gamma knife protection.
★ Between radiology: cardiovascular angiography, between treatment and protection.
★ Nuclear Medicine: Protection in gamma scintillation cameras, ECT, PET and radionuclide therapy.
★ Other disciplines: in vivo stones, bone density measurement, X-ray diffractometer protection.
★Industrial visits: X-ray flaw detector, gamma ray flaw detector, linear accelerator protection.
Knowledge about lead
Lead is a metal element that can be used as a material resistant to sulfuric acid corrosion, anti-gaming radiation, batteries, and the like. Its alloy can be used as a typeface, bearing, cable foreskin, etc., and can also be used as a sports equipment shot. Lead can also refer to a writing instrument made of graphite or the like: a pencil. Lead bismuth (lead chalk and wood, tools used by the ancients to write, by reference to collation).
Lead is a chemical element whose chemical symbol is Pb (Latin Plumbum) with an atomic number of 82. Lead is the highest atomic number among all stable chemical elements. The content of lead in the earth's crust is 0.0016%, and the main ore is galena. Lead is a soft, heavy metal that is toxic and is a weak metal that is extensible. The true color of lead is blue-white, and its surface is quickly covered by a layer of dark gray oxide in the air. Lead is used as a building material in lead-acid batteries for use as bullets and shells, as well as in solders, trophies and some alloys.
Lead is a silvery white heavy metal with a blue color. It is toxic and is an extended main metal. The melting point of 327.502 ° C, the boiling point of 1740 ° C, the density of 11.3437 g / cm ^ 3, hardness of 1.5, soft texture, tensile strength is small.
Lead is one of the earliest metals used by humans. In 3000 BC, humans had smelted lead from ore. The content of lead in the earth's crust is 0.0016%, and the main ore is galena. Lead has four stable isotopes in nature: lead 204, 206, 207, 208, and more than 20 radioisotopes.
Metal lead is exposed to oxygen, water and carbon dioxide in the air, and its surface will quickly oxidize to form a protective film; under heating, lead can quickly combine with oxygen, sulfur and halogen; lead and cold hydrochloric acid and cold sulfuric acid hardly work. It can react with hot or concentrated hydrochloric acid and sulfuric acid; lead reacts with dilute nitric acid, but does not react with concentrated nitric acid; lead can be slowly dissolved in strong alkaline solution.
Lead is not abundant in the earth's crust, and there is a small amount of natural lead in nature. However, due to the accumulation of lead-containing minerals, the melting point is very low (328 ° C), making lead used in ancient times.
Galena (PbS) is today the main source of lead extraction. In ancient times, people accidentally put galena into a bonfire. It was first burned into oxides and then reduced by carbon to form metal lead.
In the British Museum, there is a lead statue of 3000 BC found in the Abydos Mosque in Egypt. Among the materials obtained from the excavation of monuments in Ur City and other cities in Iraq, not only the various metal objects belonging to the 4000 BC, but also the clay plate records of the ancient Persian scripts were found. These records indicate that a large amount of iron, copper, silver and lead have been extracted from ore in 2350 BC. In the 1792 BC - the first 1750 years of the Babylonian emperor Hammurabi, there was already a large-scale production of lead. In the Yin Tombs of the Yin Dynasty in China, lead-made wine vessels, princes, gongs and gems were also found.
The lead content in the bronze wares from Shangyin to Han Dynasty in China has an increasing trend. The increase of lead in bronze plays an important role in the improvement of the fluidity of liquid alloys.
Application of lead plate in hospital radiation protection
Lead plate refers to a plate rolled with metal lead. At present, the common thickness in China is 1-20mm, and the common specification is 1000*2000MM. The best machine in China can make the widest 1300MM, the longest 8000MM, and the use of 1# electrolysis. Lead production, also made of recycled lead in the market. Its quality is slightly worse, the price is a little different.
χ, α, β, γ and other rays and neutron rays will cause human body ionizing radiation. If the dose is too large, it will cause greater harm to the human body. In order to reduce radiation damage, the amount of radiation exposure is inversely proportional to the square of the distance. This principle can be protected by increasing the distance between the source and the human body, called distance protection. At the same time, various materials that block the radiation are used to shield the radiation penetration, called shielding protection. Lead as an atom The metal with higher ordinal number is a kind of material which has better shielding effect on radiation. Lead-type composite board, lead protective clothing, lead cap, lead mask, lead screen and lead are similarly used. Glasses, lead glass, etc. In the radiation protection industry, lead plates are also known as radiation-proof lead plates, radiation protection lead plates, and lead plates can also be used in industrial flaw detection, acid and corrosion resistance, sound insulation, batteries, industrial product weights. In other aspects, it is called flaw detection and protection lead plates, soundproof lead plates, anode lead plates, etc. in different industries.
Lead plate definition: lead plate, which refers to a plate rolled with metal lead.
Lead plate thickness and specification: At present, the common thickness in China is 1-20mm, and the common specification is 1000*2000MM.
The width and length of the lead plate can be pressed: the best machine in the country can make the widest 1300MM, the longest 8000MM,
Lead sheet raw materials: mostly made of 1# electrolytic lead,
Why are some of the lead plates on the market cheap: they are also made from recycled lead on the market. The quality is slightly worse and the price is a little different.
Lead plate density 11.34 melting point 327.5 ° C, boiling point 1740 ° C, soft texture, tensile strength is small. Lead is exposed to oxygen, water and carbon dioxide in the air, its surface will soon oxidize to form a protective film; under heating, lead can quickly Oxygen, sulfur, halogen combination; lead and cold hydrochloric acid, cold sulfuric acid hardly work, can react with heat or concentrated hydrochloric acid, sulfuric acid; lead reacts with dilute nitric acid, but does not react with concentrated nitric acid; lead can be slowly dissolved in strong alkaline Solution.
Our company is a professional manufacturer of lead plates, lead bricks, lead cans, lead glass, composite protective plates and other lead products. The lead products are all made of lead ingots of more than 99.99, mainly used for hospital protection, industrial inspection. , industrial anti-corrosion, lead plate specifications wide thickness "1.5 meters, thickness from 0.3mm-50mm, can also be customized according to user needs.
Lead glass series: The lead glass produced by the lead is equivalent to 3.8%-4.2%, transparent and durable.
What is the composition of lead glass?
In the RmOn-PbO-SiO2 (B2O3) formula, SiO2 (B2O3), that is, silicon oxide (boron oxide), which is called a network former, is a basic unit constituting a glass network structure. RmOn, which represents a metal oxide of alkali, alkaline earth, and rare earth metal, is a network modification that changes the structure of the glass network and achieves adjustment characteristics. PbO, a lead oxide, is a characteristic component that imparts basic properties to the glass. With the increase of PbO content, the density, refractive index, dispersion, dielectric constant, X-ray and γ-ray absorption coefficient of glass increase the performance index; the hardness, high temperature viscosity, softening temperature, chemical stability and other indicators decrease; The glass molding material becomes longer, the coloring agent is bright, the surface gloss is increased, and the knocking sound is crisp.
Lead glass: the common name for hard glass potassium glass. Lead glass 1 is also called “crystal glass. Glass containing a large amount of alumina. It is made by melting lead oxide, sodium carbonate and a small amount of other materials in an oxidizing or neutral atmosphere. The main component of lead glass is lead oxide. Silica and potassium oxide, wherein the lead oxide content is 15-30%, the transparency is high, the crystal luster and refractive index are strong, the hardness is small, the car grinding, engraving and the like are easy to be processed; but it is not acid resistant.
The company mainly produces: lead plate, anti-radiation lead plate, lead glass, anti-radiation lead glass, antimony cement, anti-radiation lead door, radiation protection door, radiation protective coating and radiation protection clothing and other sales hotline 
Rockwool Felt
Rockwool Felt,Rock Wool Felt,Rock Wool Felt With Wire,Rock Wool Felt With Glass
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