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Abrasive

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Fused Silica Mullite Grit

It is a recommended abrasive for shipbuilding, steel bridge, tank, pipeline, steel frame, structure, etc. It is an abrasive material for peridotite type minerals and excellent in hardness and product stability compared to inorganic abrasives including blast furnace slag and PS(Precious Slag) ball. It is an eco-friendly product that has excellent workability in pretreatment and is used as aggregate after use. In addition, we will continue to provide reliable products with continuous R&D in order to replace natural inorganic abrasives.

Advantages

  • Good abrasive property
    ㆍ Produce superior surface roughness profile that is pre-treated than conventional natural inorganic abrasives
    ㆍ Contributes to adhesion enhancement during painting
    ㆍImproved reliability by quickly removing dirt source on the surface
  • Use safety
    ㆍ Products made of biocompatible substances contribute to the safety of workers
    ㆍ Unlike inorganic abrasives, scattered dust generated during operation is significantly reduced, improving working environment and process
  • Product stability
    ㆍSupply uniform quality products produced through accurate and standardized processes
    ㆍThere is little influence on clogging of shot blast part and shot blast speed during work
  • Storage stability
    ㆍ Stable constituents. There is no chemical or physical deformation of the product during storage. It can be stored for long term
    (Except where storage environment has factors that can cause contamination or change of products such as pollution sources)
  • Eco-friendly
    ㆍ Operation effectiveness is good. Less dust generation
    ㆍ Eco-friendly product used as aggregate after collecting it from alien substances like as rust, dust etc after shot blast.

Spec. and shot blast test

ㆍ Production Capacity : 500Ton/Mon
ㆍ Grain Size : 0.5 ~ 1.3mm
ㆍ Electrical conductivity : below 15(mS/m)
ㆍ Vickers Hardness : 700~750 (Hv)
ㆍ Without dust clean sand : below 1%

Component Analysis

Chemical Analysis(XRF) SiO2 Al2O3 Fe2O3 CaO MgO
Raw material 46.55 5.08 4.32 7.88 35.45
Fused Silica Mullite 55.3 1.8 4.9 0.6 33.4


Chemical Analysis(XRF) SO3 Na2O K2O Lol Total
Raw material 0.31 0.36 0.25 -0.6 99.6
Fused Silica Mullite 0.31 0.36 0.25 -0.6 96.32

Comparison in accordance with abrasive material type

Classification Steel Ball Fused Silica
Mullite Grit		 PS Ball Sand
Rockwell Hardness (HRC) 50 60~62 43 30
Vickers Hardness
(HV)		 513 700~750 423 302
Roughness
(Quality)		 Very good Very good Very good General
Possibility of reuse 10~12 times 6~7 times 2~3 times possible
Equipment change easiness Difficult Easy Easy Easy

Note

  • 1. Usage of PS Ball is reduced because of environmental regulation
  • 2.Fused Silica Mullite is eco-friendly product used as aggregate after collecting it from alien substances like as rust, dust etc after shot blast.
  • 3. Hardness can be changed depending on abrasive type and size
  • 4. Possibility of reuse times can be changed depending on working condition and environment.

Usage of Fused Silica Mullite Grit

  • Surface preparation before paint
  • Pretreatment for tarnish and pollutant removal and cleaning
  • SA3 Grade Cleaning and pretreatment
  • Areas that require sweep blasting
  • Areas that require better surface roughness(profile) than inorganic abrasive(Garnet)
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