Graphite Crucible/High Quality CNBM Graphite Crucibles

Graphite Crucible/High Quality CNBM Graphite Crucibles System 1

Graphite Crucible/High Quality CNBM Graphite Crucibles

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 0 m.t.

Supply Capability:: 100000 m.t./month

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Specifications

1. SIC graphite crucible
2. high pure and density
3. high strength crucible
4. ISO 9001
5. high heat condduction

Product Description

A crucible is a container used to hold metal for melting in a furnace and it is needed to withstand the extreme temperatures encountered in melting metals. The crucible material must have a much higher melting point than that of the metal being melted and it must have good strength even when white hot.

Graphite crucible can withstand the high temperature, and has good resistance to chemical erosions and thermal shock. Especially graphite crucible is ideal for the melting of aluminum, copper and etc.

Specification

Bulk Density	g/cc	1.70-1.88
Specific Resistance	μΩ.m	6.0-15.0
Compressive Strength	MPa	30-80
Bending Strength	MPa	20-45
Shore hardness		30-70
C.T.E.(100-600°C)	x10-6 /°C	2.5-5.5
Ash	%	0.01-0.2
Maximum Grain Size	mm	0.044-0

Usage

1. Graphite crucible cannot be exposed in moisture, and must be placed in indoor dry place or wooden shelf. Maintain ventilated. Moisture is strictly prohibited. Damped crucible is likely to crack.

2. Each crucible, especially damped ones, must be preheated and roasted in drying equipment or next to a ground furnace before use. The roasting temperature should start from a low temperature of 100°C below. Roast it to 150°C at a speed of not higher than 30°C per hour. Preserve the heat for about 8 hours and then dry it. The crucible dried next to a ground furnace should be placed at least for one shift, and often turned to change direction, till workers feel the internal wall of crucible is hot.

3. The melting time for the first time should be at least twice of the normal melting time, in order to avoid cracking inside the crucible due to heating up too fast, or even cracking immediately when the fire sets on.

4. Handle with care. Falling or shaking is strictly forbidden in order to present cracking. Crucible should be placed below the mouth of furnace to prevent the furnace lid abrading the upper edge of the crucible and thus affecting the capacity.

5. Pour out the remaining cold metals inside the crucible after use, and then add new materials. Carefully and gently add new materials into the crucible. Feed materials according to the capacity of crucible. It is not allowed to feed too many materials, in order to prevent crucible from swelling or bursting.

Picture

Graphite Crucible/High Quality CNBM Graphite Crucibles

Q:What are the effects of carbon emissions on the stability of desertification?: Carbon emissions have a significant impact on the stability of desertification. The release of carbon dioxide and other greenhouse gases into the atmosphere through human activities, such as burning fossil fuels and deforestation, contribute to global warming. This increase in temperature leads to several adverse effects on desertification. One of the key consequences of carbon emissions is the alteration of precipitation patterns. As the planet warms, the evaporation rate increases, causing more water to be held in the atmosphere. This results in reduced rainfall in many regions, including arid and semi-arid areas already prone to desertification. The decrease in water availability exacerbates the dry conditions, making it easier for desertification to occur and intensify. Moreover, higher temperatures caused by carbon emissions contribute to the acceleration of soil erosion. As the land heats up, it becomes more prone to erosion through wind and water. This leads to the loss of topsoil, which is crucial for plant growth and stability. Without a stable layer of topsoil, vegetation struggles to establish and survive, ultimately contributing to the expansion of deserts. Furthermore, carbon emissions also impact the health and productivity of plant communities. Increased levels of carbon dioxide in the atmosphere can stimulate plant growth in some cases, but this often leads to the proliferation of invasive species that are better adapted to the changing conditions. These invasive species outcompete native plants, reducing biodiversity and further destabilizing the ecosystem. Additionally, as desertification progresses, the loss of plant cover results in reduced carbon sequestration capacity, leading to even higher carbon dioxide levels in the atmosphere. In conclusion, carbon emissions have detrimental effects on the stability of desertification. They disrupt precipitation patterns, accelerate soil erosion, reduce plant productivity, and diminish the capacity to sequester carbon. It is crucial to reduce carbon emissions through sustainable practices and conservation efforts to mitigate the impacts on desertification and prevent its further progression.

Q:How does carbon affect the formation of ground-level ozone?: The formation of ground-level ozone is not directly influenced by carbon. Instead, it is primarily the outcome of a complex chemical reaction involving nitrogen oxides (NOx), volatile organic compounds (VOCs), sunlight, and heat. Nevertheless, carbon-based compounds, including hydrocarbons, can indirectly impact the formation of ground-level ozone. When carbon-based compounds, such as hydrocarbons, are released into the atmosphere from various sources like vehicles, industrial processes, and the burning of fossil fuels, they can interact with nitrogen oxides in the presence of sunlight, resulting in the creation of ozone. This process takes place alongside volatile organic compounds (VOCs) and nitrogen oxides (NOx), which are the main precursors of ground-level ozone. Increased levels of carbon-based compounds, particularly in the presence of NOx and sunlight, can enhance the formation of ground-level ozone. This is due to the fact that the carbon-based compounds act as catalysts, expediting the chemical reactions that lead to ozone formation. Furthermore, the combustion of carbon-based fuels, such as gasoline and diesel, releases nitrogen oxides into the atmosphere, thereby contributing further to the formation of ground-level ozone. It is crucial to note that carbon-based compounds alone do not directly cause ground-level ozone pollution. Rather, they contribute to its formation when combined with other pollutants like nitrogen oxides and sunlight. To reduce the formation of ground-level ozone, it is necessary to decrease emissions of carbon-based compounds, as well as other ozone precursors like nitrogen oxides and volatile organic compounds.

Q:How does carbon affect the formation of toxic algal blooms?: Carbon can affect the formation of toxic algal blooms by providing an essential nutrient source for the growth and proliferation of algae. Increased carbon levels in water bodies, often caused by human activities such as excessive fertilizer use and wastewater discharge, can lead to an imbalance in the aquatic ecosystem. This imbalance promotes the rapid growth of algae, including toxic species, which can release harmful toxins into the water, posing risks to human and animal health as well as the overall ecological health of the water body.

Q:How does carbon monoxide affect human health?: Carbon monoxide is a dangerous gas that can have severe effects on human health. When inhaled, it binds to hemoglobin in the blood, reducing its ability to carry oxygen to vital organs and tissues. This can lead to symptoms such as headache, dizziness, nausea, confusion, and in severe cases, unconsciousness or death. Long-term exposure to low levels of carbon monoxide can cause chronic health problems, including cardiovascular issues and neurological damage. It is crucial to ensure proper ventilation and have functioning carbon monoxide detectors to prevent its harmful impact on human health.

Q:What is carbon nanocomposite coating?: Carbon nanocomposite coating is a type of protective coating that is made using carbon nanotubes or other carbon-based nanoparticles. These nanoparticles are dispersed within a matrix material, such as polymer or metal, to create a thin film that can be applied onto various surfaces. The main purpose of carbon nanocomposite coatings is to enhance the mechanical, thermal, and electrical properties of the coated material. The addition of carbon nanoparticles improves the strength, hardness, and wear resistance of the coating, making it more durable and long-lasting. It also provides excellent corrosion resistance, making it suitable for applications in harsh environments. One of the key advantages of carbon nanocomposite coatings is their ability to provide multifunctional properties. For example, they can be engineered to have high electrical conductivity, which makes them ideal for applications in electronics and electrochemical devices. Additionally, they can have high thermal conductivity, making them useful for heat dissipation in electronic devices or as a thermal barrier coating. Moreover, carbon nanocomposite coatings have shown promising results in various fields such as aerospace, automotive, energy, and healthcare. In aerospace, they can be used to improve the performance and durability of aircraft components, while in the automotive industry, they can provide anti-scratch and self-cleaning properties. In energy applications, they can be utilized to enhance the efficiency of solar panels or to prevent corrosion in oil and gas pipelines. Additionally, in healthcare, they can be used for drug delivery, as antibacterial coatings, or for bio-sensing applications. Overall, carbon nanocomposite coatings offer a wide range of benefits, including improved mechanical and electrical properties, corrosion resistance, and multifunctionality. With ongoing research and development, these coatings hold great promise for various industries, providing innovative solutions to address their specific needs and challenges.

Q:Which is better, 13 and 14 carbon breath tests?: The following is the range of feesC14- carbon 14 breath test, each province Price Bureau regulations are different, 95-120 yuanC13- carbon 13 breath test, 150-220 yuan

Q:How is carbon used in the production of pigments?: Carbon is commonly used in the production of pigments due to its ability to create vibrant and deep colors. Carbon-based pigments, also known as carbon blacks, are produced by the incomplete combustion of hydrocarbons, such as natural gas or petroleum. The carbon particles produced during this process are then processed and purified to create a fine powder that can be used as a pigment. These carbon-based pigments have a wide range of applications in various industries, including inks, paints, plastics, and cosmetics. In the production of inks, carbon black is often added to improve the color intensity and opacity of the ink. It is also used in the manufacturing of black pigments for paints and coatings, providing a rich and deep black color. Carbon-based pigments are also used in the production of plastics. Adding carbon black to plastic materials can enhance their UV resistance, making them more durable and long-lasting. This is particularly important in outdoor applications where exposure to sunlight can cause fading and degradation. Additionally, carbon-based pigments are commonly used in the cosmetics industry. They are added to various cosmetic products, such as eyeliners, mascaras, and lipsticks, to create intense black or dark shades. Carbon black pigments are preferred in cosmetics due to their stability and ability to deliver consistent color. In conclusion, carbon is widely used in the production of pigments due to its ability to create vibrant and deep colors. Carbon-based pigments find applications in various industries, including inks, paints, plastics, and cosmetics, where they enhance color intensity, provide UV resistance, and deliver rich black shades.

Q:How do forests act as carbon sinks?: Forests act as carbon sinks by absorbing carbon dioxide from the atmosphere through the process of photosynthesis. Trees and other plants take in carbon dioxide and convert it into oxygen, while storing the carbon in their trunks, branches, and roots. This stored carbon remains in the forest ecosystem, reducing the amount of greenhouse gases in the atmosphere and helping to mitigate climate change.

Q:Carbon steel with carbon steel, carbon steel yuan yuan is the same? The trouble to know the answer urgently: Nor can we see carbon steel and carbon circle are called carbon circle. If the carbon steel and carbon circle are called carbon that are circular steel.

Q:I bought a grill myself and went to barbecue with my friends the day after tomorrow, but I can't ignite the carbon. What should I do?: Is it barbecue in the field? If so, there are many ways to ignite carbon in the wild.The simplest, affordable way is to pile up the fire, and then use the charcoal on it, charcoal will be used after burning.At home, it is placed directly on the gas range, ignited.Charcoal direct ignition is not convenient, it is best to use other things as medium ignition.Be careful when you're in the barbecue. Watch out for the fire.

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