Black fused alumina, also known as black aluminum oxide, is a type of abrasive material that is commonly used in various industrial applications. It is made from the high-quality bauxite ore by fusing it in an electric arc furnace at high temperatures. During this process, the aluminum oxide content in the bauxite is reduced, resulting in a material that is predominantly composed of aluminum oxide and iron oxide.
*Color and Appearance: As the name suggests, black fused alumina is black in color. It has a matte appearance and a high hardness.
*Hardness: Black fused alumina is known for its high hardness, making it suitable for abrasive applications. It is often used for cutting, grinding, and polishing metals, ceramics, and other materials.
*Abrasive Properties: It is an abrasive material with excellent cutting and grinding properties. It is used in applications such as sandblasting, grinding wheels, abrasive belts, and abrasive powders.
*Strength and Durability: It has good strength and durability, making it a reliable choice for applications where wear resistance is essential.
*Chemical Composition: Black fused alumina typically contains aluminum oxide (Al2O3) as the primary component, along with iron oxide (Fe2O3) and small amounts of other impurities.
Applications:
Grinding and Polishing:
Surface Preparation:
Cutting:
Refractory Industry:
Abrasive Blasting:
Lapping and Polishing:
Cutting Tools:
Refractory Castables:
Abrasive Powders and Compounds:
Tumbling and Deburring:
Garnet Sand Abrasive from India . We are one of the largest manufacturer and exporter of Garnet sand from India, We can supply all the grades from Mundra and Vizag port.
Garnet Sand Abrasive from India . We are one of the largest manufacturer and exporter of Garnet sand from India, We can supply all the grades from Mundra and Vizag port.
The Dumbbell style elements, with the enlarged cold ends, were one of the earliest designs of the heating elements, which were originally made oversized to increase the cold end cross section, lowering electrical resistance so as to lower the operating temperature of the cold ends.
Following should be provided when inquiring or ordering DB (Dumbbell) Silicon Carbide Heating Elements:
Type: DB
Outer Diameters: of the Hot Zone (D1) and of the Cold Zone (D2), mm
Length: of the Heating Section or the Hot Zone, HZ, mm
U-shaped silicon heating element is manufactured by taking two carefully-matched SiC rods and welding a thickened silicon carbide bridge. This element provides for wiring both tail ends from one side of the furnace. The tail ends of the cold ends are metallized with aluminum, which can provide a low-resistance contact surface to the aluminum connection straps and clamps.Features of silicon carbide rod
1. High strength and excellent shock resistance;
2. Heat source is free of noise and air pollution;
3. Anti-oxidization;
4. Anti-corrosion,
5. Long service life,
6. Little deformation,
7. Easy installation and maintenance.
8. Excellent specific rate of heat zone resistance and cold end resistance,
9. Avoiding over-temperature of cold ends to damage the furnace body.
Garnet as a natural abrasive can be used for waterjet cutting because of its high hardness, high cutting speed. It is a cost-effective alternative to silica sand, mineral slags and steel grits and shot as the perfect symbiosis of grain size, density and hardness/durability creates the optimum abrasive efficiency, lowest abrasive consumption (kg/m2) at the highest production rates (m2/hr).
Compared with rock garnet, river garnet sand can keep the cutting surface smooth and flat. Because river sand is formed after a long time of impact, so its grain edge surface is more rounded, less damage to the material. Products cut from river garnet are more popular with consumers.
-Sharpe Angular Edges;
-High Hardness, Faster Cutting Efficiency;
-Uniform Size Distribution, No Stuck in Nozzle;
-Â No Free-Silica.
Product Application ( 4-1/2 inch cut off disc)
ROBTEC 4-1/2 inch 115x1.2x22.2mm Cut Off Disc for INOX/Steel, 80M/s, MPA EN12413, R.P.M: 13300 can be used for cutting metal/steel bars, pipes, steel plates, metal sheet, which is widely applied in metal works.
SPECIFICATIONS FOR 4-1/2 INCH CUT OFF DISC (INOX/STEEL)
Details Grain Aluminium Oxide
Max Line Speed 80m/sec
R. P. M 13300
Nets number Double Fiberglass Nets
Usages Applications INOX/steel bars, metal sheets, steel plates, meta/steel pipes
Machine 4.5 inch Angle Grinder
Main Features
1) Adopts germany techniques and advanced grains 4-1/2 inch cut off disc
2) Automatic production line for 4-1/2 inch cut off disc
3) Strict QC control in each process of cutting disc
4) Eco-friendly, provide Brand supports to customers
5) High and Professional Quality level cutting disc manufacturer
Advanced Abrasive Grain
Name: Aluminium Oxide
Original: China
Domestic famous abrasive grain factory supplied. A tough, sharp abrasives which is highly suitable for grinding metals of high tensile strength. Its thermal properties make it an excellent material for use in the manufacture of refractory products.
Main Features
Name: Metal/steel cutting disc
Brand: ROBTEC
Original: China
Extra thin high speed cutting disc, more durable than other China brand same diameter cutting disc.
RGT Supreme is tested and approved for project under Exxonmobil, Petronas, Shell just to name a few. We have our own mines in India and production facory in both india and Malaysia.
a).Name of product: Garnet Abrasive 30/60 mesh
b).Price of product: Contact Us
c).Product Origin : India
d).Specification: Technical data sheet and test report
e).Payment Terms : To be advised
f).Packing : 25kg in 1 ton jumbo bag / Loose 1 ton bulk bag
g).Minimum order: Based on Containers
h).Quality: Dusty Free & Washed
i). Sample Available : 100-150 grams.
Calcined alumina oxide powder
Alumina, also known as activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square meters/g. The compound is used as a (to keep things dry by absorbing water from the air) and as a of , and in . It is made of (alumina; Al2O3), the same chemical substance as and (but without the impurities that give those gems their color). It has a very high surface-area-to-weight ratio. That means it has a lot of very small pores, almost like tunnels, that run throughout it
The appearance is white crystal powder with uniform particle size, stable chemical property, good crystal phase stability, difficult to dissolve in acid and alkali, and has good sintering activity. Aluminum oxide can be used as raw material for preparing high purity aluminum oxide powder.
Aluminum oxide can be used in long afterglow phosphors, three color phosphor, abrasive materials, transparent ceramic lamp, high-pressure sodium lamp, catalyst carrier, EP-ROM window, crystal, ruby, sapphire crystal, electronic ceramics. It is widely used in electronics, chemicals, petroleum, refractories, ceramics, glass, plastics, textiles, building materials, abrasives, paper and medicine, and many other fields.
