Novos Asbestos Seal Novos is an internationally renowned company with a history of nearly 1 10 years, specializing in the research, production and sales of high-quality sealing products. The company's main products are a series of asbestos-free compressed fiber seals, improved PTFE, reinforced graphite seals, wound gasket seals, corrugated gasket seals, fillers, rubber gaskets and other sealing products. Novus？ It is one of the few enterprises in the sealing industry that have passed the relevant certifications such as ISO 900 1-2000, ISO 1400 1, ISO/TS 16949, API 6A, etc.
Novos Sealing Technology (Shanghai) Co., Ltd. is a joint venture company of Novos in China.
Is asbestos rope poisonous? Yes, because asbestos is poisonous. Because asbestos fiber can cause diseases such as asbestosis and pleural mesothelioma, many countries have chosen to completely ban the use of this dangerous substance, and some countries are checking the dangers of asbestos.
However, it is best to wear a mask and gloves when using, which can play a protective role.
Is wet asbestos thread poisonous? Wet asbestos thread is non-toxic.
Toxicity of asbestos:
Asbestos itself is not toxic, and its greatest harm comes from its dust. When these tiny dust are inhaled into the human body, they will attach and deposit in the lungs, causing lung diseases. Asbestos has been confirmed as a carcinogen by the International Center for Research on Cancer.
Is asbestos gasket poisonous? Asbestos gasket is not only toxic, but also carcinogenic! The following is a repost:
It has been more than 100 years since Austria used compressed asbestos as the base material of sealing gasket in 180. Asbestos fiberboard has been widely used in mechanical transportation and petrochemical engineering because of its low price, high temperature resistance, high strength and good working efficiency. However, internationally recognized asbestos is a carcinogen. In 1970s, many countries put forward asbestos-free plans. After more than 20 years of efforts, the United States, Japan and Australia have successively developed various series of asbestos-free gasket materials. 1990, the U.S. Environmental Protection Agency issued a regulation prohibiting the use of asbestos materials and their products. At present, advanced countries in the world have extended non-asbestos materials to various application fields and completely banned asbestos materials.
Traditional asbestos materials have been used in China for a long time. After joining WTO, all walks of life in China are facing challenges from abroad, and the automobile industry is at the forefront of industrial reform. German Volkswagen and American GM, as automobile giants, brought the concept of asbestos-free seal to China. With the rapid development of domestic auto industry and more and more foreign auto companies investing in China, asbestos-free auto parts have started. In petrochemical and shipbuilding industries, the chemical corrosiveness of asbestos materials to steel bodies is often a hidden danger of major accidents; In the refrigeration industry, especially air conditioners and refrigerators are closely related to people's lives, and asbestos will do great harm to human body and environment.
Hangzhou Shangcai Baide Sealing Material Co., Ltd. began to study asbestos-free sealing gasket materials (100% asbestos-free materials) in the 1990s, and gathered many domestic experts in the field of asbestos-free materials such as Fudan University and East China University of Science and Technology. After years of research, development and application, it has achieved great success.
We have mastered the whole set of technology from research and development of non-asbestos materials (non-asbestos materials) to product manufacturing, and the product efficiency has reached the level of developed countries in Europe and America. The self-developed domestic leading continuous production line of asbestos-free (non-asbestos) coiled materials adopts special continuous molding technology to produce various specifications of asbestos-free plates (non-asbestos plates) and coiled materials, which can meet the needs of different customers.
At present, our asbestos-free products have been widely used in many world-renowned enterprises such as General Motors, Shanghai Volkswagen, Jinshan Petrochemical, Daikin Air Conditioning, Mitsubishi Heavy Industries, Kansai Co., Ltd. and Brother Group.
Note: Some companies in the domestic market call the gasket containing a certain amount of asbestos (5-20%) as non-asbestos gasket, while the gasket containing 100% asbestos is called non-asbestos gasket.
What is the difference between non-asbestos gasket and non-asbestos gasket?
Asbestos-free gasket is a kind of sealing product with different shapes, which is made of asbestos-free sealing materials (aramid fiber, high-temperature resistant synthetic mineral fiber, oil-resistant rubber and other materials) by rolling method or stamping and cutting with various tools.
Asbestos-free gasket is a new product used internationally, that is, a product with high temperature resistance, high pressure resistance and corrosion resistance. It is made of non-asbestos sealing materials (non-asbestos cardboard, non-asbestos compression board, non-asbestos rubber board and other non-asbestos materials) and is a sealing product of various shapes by stamping and cutting with molds or various tools.
Asbestos-free aramid gasket is a good composite material. Asbestos gasket is a sealing product of various shapes made of asbestos-free sealing materials (aramid fiber, high-temperature resistant synthetic mineral fiber, oil-resistant rubber and other materials) by stamping and cutting with various tools. The above is an encyclopedia of asbestos-free gaskets, so the following is an encyclopedia of composite materials, which are made of two or more materials with different properties by physical or chemical methods. All kinds of materials learn from each other's strengths in efficiency, resulting in synergistic effect, which makes the comprehensive performance of composite materials superior to raw materials and meets various requirements. The matrix materials of composite materials can be divided into two categories: metal and nonmetal. Commonly used metal substrates are aluminum, magnesium, copper, titanium and their alloys. Non-metallic matrix mainly includes synthetic resin, rubber, ceramics, graphite, carbon and so on. The reinforcing materials mainly include glass fiber, carbon fiber, boron fiber, aramid fiber, silicon carbide fiber, asbestos fiber, whisker, metal wire and hard particles.
What is the difference between asbestos cement board and asbestos-free cement? Asbestos fiber cement board is a new generation of green building materials, which has unique environmental protection function on the basis of excellent moisture-proof and fire-proof efficiency. It is a new building material with siliceous and calcareous materials as the main base materials, cellulose fibers as the reinforcing materials and other auxiliary materials, which are copied, molded, high temperature, high pressure and solidified. This product does not contain asbestos. The main materials used in the production of fiber cement board include: high-grade cement, plant fiber, various selected mineral fillers, various suspending agents and additives. After comparing the test indexes of raw materials with the standard indexes, the formula balance is corrected by computer, and the ratio adjustment and feeding are automatically carried out.
How to choose asbestos-free gasket There are several general principles for choosing asbestos-free gasket:
1 first look at the working condition, and choose according to your temperature, pressure and working medium. Asbestos-free has different pressure and temperature resistance according to its formula. At the same time, because of its different formula, its price is definitely different. Therefore, it is good to choose asbestos-free materials suitable for your working conditions, not expensive ones.
2. Try to choose imported products. Although asbestos-free manufacturing is not high-tech, in order to obtain more benefits, some domestic manufacturers will add asbestos fiber components to asbestos-free to reduce its cost. Also known as "non-asbestos" in China.
3. It depends on whether the product has relevant international certification. For example, you need to seal the fire protection system in API, which shows that this asbestos-free product has passed the fire protection evaluation of professional institutions and can be applied in this working condition.
4, want to have a material inspection report. Expert manufacturers tell you that this is asbestos-free, but who can guarantee that its ingredients are pure? Of course, it needs to be tested by an authoritative organization. There should be an asbestos report (also called SGS certificate)
The above points are the most basic, and other points for attention include price, appearance, whether the ink printing on the gasket surface is clear, whether it is a cottage product and so on.