名稱：鎢棒、鎢桿、鎢合金棒、鎢合金桿
牌號：W1，W2
技術(shù)條件：GB4187-84?? GB4186-84
用途：用于電子、電光源、電真空等行業(yè)、鎢發(fā)熱體等。
鎢棒材、桿材牌號、狀態(tài)和規(guī)格
|
牌號 |
加工方法 |
直徑d(mm) |
直徑允許公差(mm) |
品種 |
|||
|
燒結(jié) |
鍛造??(黑鉬桿) |
矯直??(黑鉬桿) |
經(jīng)磨削或機加 |
||||
|
W1 |
燒結(jié) |
0.8≤d＜3.0 |
— |
— |
±2% |
±0.03 |
鎢桿 |
|
3.0≤d＜6.5 |
— |
±2% |
±0.05 |
||||
|
6.5≤d＜11.0 |
— |
±0.08 |
|||||
|
11≤d＜16 |
— |
±1.0 |
±1.0 |
±0.2 |
鎢棒 |
||
|
16≤d＜25 |
— |
±1.0 |
±1.0 |
±0.2 |
|||
|
25≤d＜45 |
±5 |
±1.5 |
±1.5 |
±0.3 |
|||
|
45≤d＜55 |
±5 |
±2.0 |
±2.0 |
±0.5 |
|||
|
55≤d＜60 |
±5 |
±2.5 |
±2.5 |
±0.8 |
|||
|
60≤d＜70 |
±5 |
±3.0 |
±3.0 |
±0.8 |
|||
|
70≤d＜75 |
±8 |
±3.5 |
±3.5 |
±1.0 |
|||
|
75≤d＜85 |
±8 |
±4.0 |
±4.0 |
±1.5 |
|||
|
85≤d＜90 |
±8 |
±4.5 |
±4.5 |
±1.5 |
|||
|
90≤d＜100 |
±8 |
±4.5 |
±4.5 |
±1.5 |
|||
注：研磨或機加工方法的直徑允許偏差可根據(jù)需方要求而定。
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