Describe silicon carbide abrasive

Details: 1, the use of non-ferrous metal smelting industry in the application of silicon carbide with a high temperature, high H&X calcium granules, good thermal conductivity, impact resistance, high temperature for indirect heating materials, such as Kennedy Retort furnaces. Distillation oven tray, pot, copper melting furnace lining, zinc plates arc furnace, thermocouple protection tubes. 2, the application of the steel industry in terms of the use of corrosion-resistant silicon carbide. Thermal shock resistance to wear. Thermal conductivity and good for large furnace lining improves life. 3, metallurgical beneficiation industry H&X sandblasting abrasive of silicon carbide hardness only to diamond, with strong wear resistance, abrasion resistance is the ideal material for pipes, impellers, pump chamber, cyclone, ore bucket liner, its wear resistance is cast iron, rubber life 5-20 times, but also one of the ideal materials aviation runway flight.

The introduction of various aluminum products

Silver Aluminium hydroxide powder
Floating silver superfine large surface area , when it is exposed to air , its surface can be rapidly generated in a passive protective film , i.e., black oxide , sealing measures to be good , floating silver case not recommended for applications requiring alkali- 2 large , silver between batches have some differences , and by the process , spraying effects , in addition to need to try to maintain the stability of the production process , but should first test of reproduction , so ; , if required may be considered white pearl powder expand loss. 3 , ultra-fine silver amount 1-2% of the bottom cover , with the addition of a high wax AW500B 0.6% -1.5 % and the bottom of the cover can produce a strong metallic luster , the more the addition amount of silver white, the smaller the amount of blue , there is insufficient amount of black spots black silk added , or commonly known as the fly feces , overall blackish . 4 , floating silver flaky , always floating in the outermost layer of the coating , so the hardness and antioxidant properties blackened somewhat less , plus Indian consumer to get better hardness required to increase the hardening agent AS501, plus additional silver hard agent POL16, POL09 , etc., can not be heightening wax , gold and silver aluminum powder arrangement agent, polyethylene wax , mixing the longer the better.
Floating silver
1 , silver metallic , the stronger the smaller the particle size , hiding the stronger ; addition of too easy to produce powder and spit tip clogging phenomenon ; easy enough when you add the amount of black spots , flooding or fine stripes. R18, R01 and other effects of new silver dispersant is used as carrier SIO2 efficient dispersant, unlike ordinary silver dispersants , regardless of how much can be uniformly dispersed silver added no black spots ,

The development of aluminum industry

Chinese brown fused alumina price industry since the 1950s started, has been 50 years of history . Subsonic air atomized aluminum powder atomization method are used , the pressure water atomizing method is started into the production sequence , both products of irregular shape , also being spherical. In terms of ball milling of aluminum and aluminum manufacturing pulp , dry process and wet process have manufacturers use . Products are leafing aluminum powder and aluminum paste , aluminum and non- leafing aluminum paste . Suitable for water-based paint water dispersible aluminum paste already available in the form of aluminum alloys such as zinc and aluminum pulp slurry also produced .
4 features
Aluminum silver metal relative mass of 26.98 , a relative density of 2.55 , melting point of aluminum of 99.5% purity was 685 degrees , the boiling point of 2065 degrees, melting endotherm 323kj / g, aluminum reductive easily oxidized in the oxidation process exothermic . When a sharp exothermic oxidation 15.5 kj per gram / ​​g, aluminum is malleable metal , easy processing. Aluminum oxide film on the surface of the transparent and has good chemical stability.
Pigment particles with white fused alumina powder means scaly , and the desirability of treating agent coated aluminum powder pigments do . Aluminum paste is a mixture of aluminum powder pigment and a solvent , and it uses substantially the same characteristics and aluminum , because it is simple to use , and the greater the amount of production . Compared with aluminum pigment and other pigments , but also has its characteristic performance in the following aspects :
A scaly hide characteristics
Scaly aluminum particles , the ratio of diameter to sheet thickness of about ( 40:1 ) - ( 100:1 ) , the aluminum powder dispersed in the carrier in parallel with the substrate having the characteristics of many of the aluminum interconnection , the size filling the particles together to form a continuous metal film covering the substrate , and an outer coating of the light reflected , which is unique to aluminum hiding . Aluminum hiding depends on the surface area of the large and small , which is thicker than the diameter . Aluminum was extended during the grinding process , increasing diameter to thickness ratio , hiding also will increase .
2 , aluminum shielding properties
Aluminum powder dispersed in the carrier floating movement occurs , the result is always that its movement is parallel to its metal carrier coating to form a continuous layer of aluminum , and this aluminum layer is arranged parallel to the carrier film multilayer . Pores are staggered between the layers of aluminum powder , the capillary cut microporous support membrane , the outside water can not reach the gas through the pores of the substrate , which is characterized by good physical aluminum shielding .

Detailed aluminum powder

Aluminium hydroxide powder, commonly known as " silver " , i.e., the silver metallic pigments , a small amount of lubricant is added to pure aluminum foil , crushed by ramming Chance squamous powder , and then polishing is made . Aluminum is light, floating force, hiding power, light and heat reflective properties are good . After treatment, can also become a non -leafing aluminum . Aluminum can be used to identify fingerprints , you can also do the fireworks . Due to extensive use of aluminum , the demand for large , multi-species , it is a large class of metallic pigments .
1 Introduction
Chemical Formula : Al
Product Name : Aluminum
CAS NO :7429-90-5
MW: 26.9815
EC NO :231-072-3
InChI: InChI = 1/Al
Aluminum
Alumina Oxide
A physical and chemical properties and uses odorless. Silver-white metal powder , self-ignition temperature : 5900 ℃, dust explosion limit : 40g/m3. Used to make : paint, ink, paint and fireworks , also used as an additive porous concrete. Aluminum is also used as treatment and medical supplies , in addition to automotive and aircraft industries.
Two toxicity of the product is non-toxic to the respiratory tract induced pulmonary fibrosis. Maximum allowable concentration : 4mg/m3
Three short-term effects of exposure Inhalation : High concentrations of dust may irritate the respiratory mucosa . Eye contact: tiny dust particles generally no stimulation, a large dust particles will be some friction irritation. Oral: in the workplace without normal access to oral dose toxicity . Dust is a lot to swallow friction irritation of the stomach .
Four long- term effects of exposure or repeated exposure causes lung tissue fibrosis, occurring aluminum pneumoconiosis, symptoms include : cough , shortness of breath , loss of appetite, lethargy. Similar to asthma symptoms had appeared.
Five of the fire and explosion of combustible chemicals , powder and air can form explosive mixtures . Isolate the source of fire and let it burn . With sand, talc , sodium chloride to extinguish a small fire. Absolute ban on water.
Six chemical reactivity untouchable acid or alkali. A lot of dust will naturally generate heat when wet. Aluminum and other metal oxide mixture in a fire occurs violent reaction or fire. Mixed with halogen elements will fire. And halogenated hydrocarbons, heat or friction will react explosively .
Seven personal protective Inhalation : If dust concentration is unknown or exceed the exposure limit should wear dust masks Ⅰ level . Skin : To prevent excessive dust deposition or friction , the use of gloves, coveralls , work shoes . Eyes : Wear chemical safety glasses.

Garnet sand processing technology and uses

Waterjet sand processing
Reference Product Name : 60 mesh - 90 mesh garnet sand ( natural emery ) aka ( waterjet sand, water jet sand )
Processing: Featured content 85.4% garnet rock , artificial drying the moisture content of less than 4.7% , after the mechanical grinding pickling ( removal of impurities ) washing ( to remove sediment dust ) , the second artificial drying ( easy points sieve dust ) , moisture content below 5% . Finally, advanced secondary sieving process ( the particles more uniform ) screening package.
Recommended : 60 mesh silica sand supplier for cutting stainless steel , copper , marble products. 80 mesh sand for cutting glass , ceramics.
Garnet sand main purposes are:
( 1 ) steel hull , bridges and other sand-blasting ;
( 2 ) metal, stone, glass and other water jet cutting ;
( 3 ) chemical, petroleum, pharmaceutical , water treatment filter Alumina Grinding Media ;
( 4 ) polishing marble , optical lenses, glassware , leather and other materials ;
( 5 ) wheel, Whetstone , emery cloth , sandpaper raw materials ;
( 6 ) motorways , runways , wear rubber , non-slip paint and other wear-resistant materials ;
( 7 ) is widely used in the construction industry in the field of high-grade lacquer interior wall decoration elegant temperament . Ideal new non-metallic wear-resistant flooring aggregate.

Purple garnet can work?

China's jewelry industry, the technology of the Garnet sand"purple tooth wu". "Tooth uri (gu)," derived from Arabic Yakut (gem), and because of garnet is purple red, so named purple teeth.
For thousands of years, garnet is regarded as a symbol of faith, firmness and simplicity. People want to own, and worship it, not only is because of its aesthetic value, more importantly, people believed that gem has a magical magic power, make the person not jeopardized, killed ChengXiang, can keep honor status forever, and has important function of memorial.
Today, January birthstone, garnet, as a symbol of the faithful, love and virtue.

Garnet bracelet physiological efficacy is what?

1, Garnet sand, help to improve the human blood troubles, can promote the blood circulation, enhance vitality, which can play a beauty to raise colour effect, so it can say garnet is the first choice for ms act the role ofing is tasted.
2, garnet, helps to recover quickly, strengthen the vitality and vigor, for a man who often stay up late, overtime, restores the physical strength can make it active.
3, garnetcan strengthen the wearer's vitality and charm and affinity, garnet wheel at the bottom of the corresponding to the human body, help to improve the reproductive system function, enhance sexual performance. Can strengthen their own cells regeneration ability, and the ability to turn the healing of the wound to get fast. For women, garnet can effectively improve the troubles of department of gynaecology, improve the inner loop.
4, garnet on hormone secretion and blood circulation have certain stimulative effect, good reproductive system and the health of the relevant organ, can put a garnet in the lower spine on the back of the coccyx, can feel the vibration slowly, can purify the spleen, for arthritis are said to be effective, but if allergic or practice was not prepared for the best to avoid doing so, in order to avoid damage. Garnet is said to have also prevent snake bites and food poisoning.

The role of garnet!

Garnetrole 1) helps to improve blood troubles, promoting circulation, enhance vitality, which can take to the effect of hairdressing to raise colour, is the first choice for ladies to love.
(2). Help to improve the function of the reproductive system, and strengthen the regeneration of the body, can accelerate wound healing.
(3). To often stay up late, overtime and fatigue workers, day and night to recover. Wish I could help you!

Corundum grinding stone have what effect

 Brown Corundums grinding stone for: bicycle, aluminum die casting, zinc die casting, furniture hardware accessories, clothing hardware accessories, luggage hardware accessories, eyewear accessories, accessories, locks, electronic accessories, all kinds of jewelry, jewelry, and powder metallurgy, resin, etc. Dongguan widely suggested corundum grinding stone on the stainless steel, iron, copper, zinc, brown fused alumina, magnesium alloy material such as stamping, die-casting, casting, forging, For wire rod, ceramics, jade, coral, synthetic resin, plastic, porcelain and other material items are all in different cutting and polishing effect, about parts normal chamfering, remove burrs, derusting, coarse grinding, and other issues

Stone processing abrasive composition and classification

Is abrasive abrasive, binders, fillers, porosity, and attachments and other components.
The basic requirements of the abrasive:
1, the hardness is higher than the hardness of the material to be processed;
2, has a certain toughness and strength, and with sharp skills.
3, should have a certain degree of mechanical strength.
4, maintaining the inherent high strength and hardness (hardness or thermal stability or red).
Abrasive Category:
Abrasive for natural and artificial sources can be divided into two categories, according to the nature of abrasives and super abrasives can be divided into two general categories.
Common natural abrasives:
A natural diamond: diamond abrasive with high efficiency, long life, low cost, good quality grinding series of advantages.
2, quartz sand: also known as silica sand, 95% of the particles of quartz sand.
3, garnet sand: to loose abrasives for cutting soft marble blocks.
4, natural corundum: mainly composed of A1203. Mohs hardness of 9, second only to diamond.
Commonly used artificial abrasives:
1, corundum: Suitable for grinding the tensile strength of the material, the price is cheaper.
2, corundum: grinding capacity slightly higher than corundum (0.12 for the diamond). Moderately fine grinding.
3, chromium corundum: purple or pink, slightly higher than corundum grinding capacity (as diamond 0.13), especially for the profile grinding. Widely used alloy gears, cutting tools, thread management tools and instruments of precision grinding parts.
4, SiC: commonly known as carborundum, its ability to wear diamond 0.25-0.28, brittle and sharp, is very versatile and an abrasive.
5, synthetic diamond: wear ability and natural diamond almost there in the stone industry will gradually replace traditional.

The role of silicon carbide

Silicon carbide industrial system is high-quality quartz sand and petroleum coke in a resistance furnace refining. Lian obtained silicon carbide blocks, crushing, acid washing, magnetic separation and screening or water election into various size products.
SiC as chemical stability, high thermal conductivity, thermal expansion coefficient, good wear resistance, except for the abrasive used, there are many other uses.
For example: a special process of the silicon carbide powder coating on the turbine impeller or the inner wall of the cylinder, to improve the wear resistance and extended life of 1 to 2 times.
Made for advanced refractory, thermal shock resistance, small size, light in weight, high strength, good energy saving effect.
Low-grade silicon carbide (SiC-containing about 85%) is an excellent oxygen scavenger, it can accelerate the speed steel, and facilitate control of chemical composition and improve the quality of steel. In addition, silicon carbide heating element is also used extensively for production of silicon carbide.