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軟光纜用途覆（EAA）鍍鋅鋼絲 Soft Fiber Optic Cable （EAA） Coated Steel Wire 

1、技術要求

鋼絲必須是高碳負，通常需滿足：

含碳量：》0.7%,硫、碳含量應不大于0.03%

鋼絲表面必須經過表面鍍鋅以保證其不生銹或被腐蝕

2、性能指標

鋼絲的彈性模量：min 190000Mpa

0.01的彈性模量伸長率大于或等于0.5%

鋼絲的鋅層重量應大于70G/M2

涂覆層厚度0.03%～0.05mm

鍍鋅鋼絲的鋅層牢固，鋼絲以均勻的速度在鋼絲公稱直徑3倍的芯棒上緊密纏繞6圈

鋅層不應裂開，也不應起層到用裸手指能夠擦掉的程度

3、鋼絲表面經過處理以保證其不生銹，且應允質無缺陷不含雜質，鋼絲表面無油，平滑干凈，整盤鋼絲不允許有接頭，鋼絲涂覆層連續均勻，平滑干凈

1、Technical requirems 

Wire must be high carbon negative ，usually required to meet

Carbon content：0.7%，surfer，phosphorus content should not be greater than 0.03%

Steel wire surface must be galvanized to ensure that it does not rust or corrosion

2、Performance index

Elastic modulus of steel wire ：190000MPa Min

0.01modulus of elasticity is greater than equal to 0.05%

Weight of zinc coating steel wire should be greater than 70g/M2

Coating thickness 0.03-0.05MM

Zinc coating on galvanized steel wire should be firmed，The wire with a uniform velocity in the steel is 3 times the norminal diameter of the mandrel tightly wound 6 laps，zinc layer should not crack ，nor should it should it be able to erase the extent of the bare fingers

3、The steel wire surface after treatment to ensure that it does not rust ，and should be uniform and no defect free of impurities 

No oil ，smooth and clean steel wire surface

whole plate steel wire is not allowed to have joint

Steel wire coating layer is continuous ，uniform and smooth