Brown Fused Alumina Grit 400# / Emery Sand for PCB Blasting

• Customization: Available
• Natural Abrasive Type: Natural Corundum
• Artificial Abrasive Type: Corundum Abrasives
• Model NO.: H-0P
• Application: Machinery
• Function: Surface Deburring
• Source: Natural Abrasives
• Particle Size: Abrasive
• Hardness: Superabrasive
• Certificate: ISO9001:2008, MSDS, SGS .CE
• Hardness Moh: Vickers Harness: 2100 Hv Mohs: 9
• Bulk Density: F12#-F220# 1.98-1.68g/cm3
• Abrasives Size: 24#-220# & F12-F1500
• Refractory Size: 0-10mm 3-5mm
• Different Process: Fixed Furnace & Dumping Furnace
• Superiority: Have Our Own Factory / Plant
• Al2O3: 95%Min. Sio2 1%Max
• Fe2o3: 0.3%Max. TiO2 2.0-2.8%
• Material: Aluminium Oxide Al2O3
• True Specific: 3.97g/cm3
• Usage: Abv for Grinding Wheels, Abr for Cutting Discs
• High Light: White Fused Alumina, Chemical Grade Alumina
• Crystal Form: Trigonal Crystal System
• Transport Package: 25kgs Bags +Ton Bag or Pallet
• Specification: F16-F320
• Trademark: Swt
• Origin: Dengfeng. China
• HS Code: 281810000
• Production Capacity: 1000 Tons/Month

Product Description

            Aluminium Oxide Brown Grit 400# / Emery Sand for PCB Blasting

 

Brown fused alumina is a kind of artificial corundum, with Al2O3 95%Min. HS code: 2818101000

By application it can be divided into:

• F sand for Bonded Abrasives, sandblasting, polishing
• P sand for coated Abrasives
• Section sand for refractory

Then F sand can be divided into:

• ABV-Abrasive for Bonded Vitrified

Feature: Higher TiO2

The grinding wheels produced by ABV with blue color, no reticulate crack, high grinding efficiency

• ABR- Abrasive for Bonded Resin

High toughness, good self-sharpness, super grinding capacity, the cutting discs produce by ABR is of great cutting efficiency

• Blasting media

High bulk density, no free silica, large specific gravity, good toughness, is an ideal "environmental" type sand blasting material, widely used in aluminum parts, copper work piece, precision molds and other fields;

 

Application	Size		Main Chemical Index %				Magnetic Materials %
			Al2O3	Fe2O3	SiO2	TiO2
Abrasives/ Sandblast	F	4#-80#	≥95.3	≤0.3	≤1.0	≤2.8	≤0.04
		90#-220#	≥95.0				≤0.02
	P	8#-80#	≥95.3	≤0.2	≤1.2	≤2.8	≤0.04
		100#-220#	≥94.5				≤0.02
Refractory	Section sand	0-1mm 1-3mm 3-5mm 5-8mm 8-12mm	≥95.3	≤0.3	≤1.0	≤2.8	-
		25-0mm 10-0mm 50-0mm 30-0mm	≥95.5	≤0.3	≤1.0	≤2.8	-
BFA Crude for Abrasive	Fine powder	180#-0 200#-0 320#-0	≥94.0	≤0.4	≤1.0	≤3.0	-

 

Applications Brown Fused Alumina

• 1. Bonded abrasives

Vitrified Bonded abrasives and resin bonded abrasives. Like grinding wheels, cutting discs, etc.

• 2. Coated abrasives

Coated abrasives like sand paper, sand rolls, flap discs, etc;

• 3. Sand blasting

Shoe molds blasting, decontamination, descaling, cleaning, pretreatment, matte finish, etching art, deburring, stress relief, etc.

• 4. Hydraulic cutting

Cutting of petroleum (natural gas) pipelines, steel and other components

• 5. Refractories, castables, refractory bricks

Advanced refractory materials, castables, refractory bricks, refractory bricks, ramming materials, skateboards, steel sliding nozzles, ladle, furnace linings, smelting rare metals, special alloys, ceramics, linings for ironmaking blast furnaces ( Wall and tube);

 

 

What Is Difference Between Tilting Furnace Melted BFA & Fixing Furnace Melted BFA ?
Ball Milling & Barmac Process?
 

1. Tilting furnace process affects SiO2, SiO2 <1% by Tilting furnace, SiO2 <1.5% is by fixed furnace.

2. Barmac affects the density, the grain shape is  rounder & the density is greater than ball milling

3. The Tilting furnace made BFA has high Al2O3 content

4. The corundum has good toughness & more suitable for abrasive products by dumping furnace process
 

The difference between F-grit & P-grit Abrasive grains:

F-grit is more suitable for bonded abrasive tools.

P-grit is more suitable for coated abrasive tools. It is with a closer tolerance size distribution, lower density, and better self-sharpening ability than non-P-grit abrasives, which means that they offer a more consistent surface finish.

Grit size: 16#, 20#, 24#, 30#, 36#, 46#, 54#, 60#, 80#, 100#, 120#, 150#, 180#, 220#
Micropowder: 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#,  2000#
Refractory Grit size:1-0mm, 3-1mm, 5-3mm, 5-8mm, -200mesh, -240mesh, -320mesh.

 

Packaging & Shipping
1. 1 ton bags in container, 25 MT/20'FCL.
2. 25kg bags in container, 25 MT/20'FCL
3. 25kg bags in ton bags, then in container, 25 MT/20'FCL
4. as the customer' request.

Why Choose us?
1) 20 years abrasive industry experiences
2) Direct Factory supply & Fixed abrasive sources
3) On-site inspection in factory for each shipment
4) Samples tests each lot in Zhengzhou Research Institute for Abrasives& Grinding Co., Ltd
 
Our Brown fused alumina grit has been exported to Japan, India, Israel, Russia, Poland etc.
Pls send me email to get Brown fused alumina datasheet /samples and quotation…