Dicyclopentadiene Dioxide Catalyzed by Quaternary Ammonium Salt of Phosphotungstic Heteropolyacid
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- Category: Tungsten Information
- Published on Monday, 04 March 2019 21:49
- Written by meiwei
- Hits: 468
Dicyclopentadiene dioxide is a kind of alicyclic epoxide with excellent properties. It has excellent weatherability, heat resistance, high hardness and good electrical insulation. It is used in high temperature casting materials, glass fibre reinforced plastics, adhesives, laminates and packaging of electronic devices. This material is usually prepared by epoxidation of dicyclopentadiene, and strong acid catalyst is needed in the reaction process.
W60 Tungsten Copper Bar
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- Category: Tungsten Information
- Published on Monday, 04 March 2019 14:36
- Written by tang
- Hits: 457
W60 tungsten copper bar is composed of 60% W and 40% Cu, which not only has high density (12.75g/cm3), high hardness (≥HB140), high strength, but also has good conductivity (%47IACS), softening temperature is ≥900℃.
W50 Tungsten Copper Bar
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- Category: Tungsten Information
- Published on Monday, 04 March 2019 14:33
- Written by tang
- Hits: 444
W50 tungsten copper bar is composed of 50% W and 50% Cu, which not only has high density (11.85g/cm3), high hardness (≥HB115), high strength, but also has good conductivity (%54IACS), softening temperature is ≥900℃.
W55 Tungsten Copper Bar
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- Category: Tungsten Information
- Published on Monday, 04 March 2019 14:35
- Written by tang
- Hits: 463
W50 tungsten copper bar is composed of 55% W and 45% Cu, which not only has high density (11.85g/cm3), high hardness (≥HB115), high strength, but also has good conductivity (%54IACS), softening temperature is ≥900℃.
Central South University and Tiejian Heavy Industry Teamed Up to Develop "Iron Tooth Steel Teeth": Tungsten Carbide Shield Cutter
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- Category: Tungsten Information
- Published on Monday, 04 March 2019 09:15
- Written by tang
- Hits: 449
Recently, "the strongest brain" Central South University and the "shield giant" iron construction heavy industry marriage. What kind of spark will this shine? What kind of story will be created? It is bound to create an "iron-tooth steel tooth" that exerts the best performance of "Pangolin"!
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