HENAN TIANMA THE NEW MATERIAL SHARES CO.,LTD.

HENAN TIANMA THE NEW MATERIAL SHARES CO.,LTD.

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HENAN TIANMA THE NEW MATERIAL SHARES CO.,LTD.
  • Tel:+86-371-68942898 13938253542 13523012188
  • Fax:+86-371-68942899
  • Address:No.25, Anyang Road, Shangjie District, Zhengzhou, China
  • E-mail:zztmwfgs158@sina.com
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TM-WCA series a-Alumina for Monocrystalline Silicon Slice

TM-WCA series a-Alumina for Monocrystalline Silicon Slice

    This abrasive material is developed by our company specially for the electronics industry. It uses commercial alumina as main raw material and adopts special mineralizing agent. After high temperature calcination, it will turn into tabular alumina with grain crystal of a certain thickness-to-diameter ratio. Tabular alumina is ground and strictly classified. The powder color is white. According to the users’ requirements, we can produce this abrasive material with Chinese standard or Japanese JIS standard. 
Features:
    Crystal has a plate form and peripheral edge is smooth, which makes it free from scratch. It has characters of narrow particle size distribution, high hardness (Moh’s hardness 9) and strong grinding force. After being ground, the plate has good-quality surface. It can reach the quality level of similar foreign products and replace the imported ones. It is produced exclusively by our company in China. 
Applications:
    1)Electronics industry: Monocrystalline silicon wafer polishing
    2)Electronics industry: crystalline lens polishing
    3)Electronics industry: Aluminum alloy material, like mobile phone shell and stainless steel polishing
    4)Decoration industry: stainless steel tableware and other decorating material polishing
    5)Spraying material: plasma spraying
Models:
WCA03, WCA05, WCA09, WCA12, WCA15, WCA20, etc.
Main Technical Parameters of TM-WCA Seriesα-Alumina for Monocrystalline Silicon Wafer Abrasive:

AL2O3(%) Impurity Content ≤(%) True Density≥(g/cm³) L.O.I. PH Value Suspension Property ≥ Grinding Rate(μm/min)
SiO2 Fe2O3 Na2O
TM-WCA 99.6 0.05 0.05 0.25 3.92 0.04 7.5-8.5 24hr 7.5
Imported Abrasive 99.6 0.08 0.05 0.30 3.92 0.10 7.5-8.5 24hr 7.5