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Current Position:Product Info>Selling leads>钨坩埚

钨坩埚

Price:

Specification:OD80*ID74毫米

MOQ:5

Post date:2018-06-07

Supplier

0862694032

Membership: 0

Area:陕西西安

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  • Product Name:钨坩埚
  • Specification:
  • Category:钨成品制造设备
  • Product Size:OD80*ID74毫米
  • Grade:w
  • Component:99.95%W
  • Tolerance:+-0.2毫米毫米
  • Level:M级
  • MOQ:5个
  • Delivery:20天
  • Area:陕西西安
  • Quantity:
  • Validity:180天

Other instructions: 钨是一种金属元素。钨的化学元素符号是W,原子序数是74,相对原子质量为183.85,原子半径为137皮米,密度为19.35克/每立方厘米,属于元素周期表中第六周期(第二长周期)的VIB族。钨在自然界主要呈六价阳离子,其离子半径为0.68×10-10m。由于W6+离子 半径小,电价高,极化能力强,易形成络阴离子,因此钨主要以络阴离子形式[WO4]2-,与溶液中的Fe2+、Mn2+、Ca2+等阳离子结合形成黑钨矿或白钨矿沉淀。经过冶炼后的钨是银白色有光泽的金属,熔点极高,硬度很大,蒸气压很低,蒸发速度也较小,化学性质也比较稳定。

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  • Business license:
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  • Main industry:高比重钨合金,钨铜合金
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  • Main product:高比重钨合金,钨铜合金
  • Model:0
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  • Truename:西安优博新材料有限公司

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