艺术
美容与健康
工艺
文化与历史
娱乐
环境
食品与饮料
逆向工程
科学
体育
技术
可穿戴设备
E-glass Yarn ECD 450-1/2: Two Twisted Strands Plied
Continuous glass filament is processed much like silk and rayon: strands are twisted, then two are plied together the other way. This is yarn ECD 450-1/2 from the US glass-yarn standard MIL-Y-1140H (1972): electrical-grade (alkali-free) glass, continuous filament, fibre about 0.00023 in thick, strands of 45,000 yards per pound, one strand twisted, two plied. It is the warp and filling of style 112 glass cloth for laminates (MIL-C-9084C).
The picture: our diagram.
中级
1 day
说明
1
1
Check the strand
Check the strand
Use alkali-free E-glass strand of D filaments (about 0.00023 in, 5.8 µm) with about 45,000 yards per pound (about 90 m per gram).
此步骤所需材料：
E-glass 纤维原丝1 as required所需工具：
等臂天平
橡胶手套2
2
Twist each strand: 5.0 turns per inch, Z
Twist each strand: 5.0 turns per inch, Z
Twist single strands to 5.0 turns per inch (about 2 per cm) in the Z direction. Ours: a ring spinning frame as the twister.
所需工具：
环锭细纱机橡胶手套3
3
Ply two: 4.4 turns per inch, S
Ply two: 4.4 turns per inch, S
Ply two twisted strands together at 4.4 turns per inch (about 1.7 per cm) in the S direction, against the twist of the singles.
所需工具：
环锭细纱机橡胶手套4
4
Check and put up
Check and put up
The finished yarn is about 0.0074 in (0.19 mm) thick, 22,500 yards per pound (±10 %; about 45 m per gram), and breaks at no less than 2.2 lb (1.0 kg), no single test below 80 % of that. Wind it on tubes or cones.
所需工具：
绕线器等臂天平此蓝图制作
相关蓝图
这些蓝图共享知识——技术、材料或原理
CC0 公共领域
此蓝图以 CC0 协议发布。你可以自由复制、修改、分发和使用此作品，无需征得许可。
通过购买蓝图中的产品支持创客，他们将获得 创客佣金 （由供应商设定），或创建此蓝图的新版本并将其作为连接包含在你自己的蓝图中以分享收入。