3) prestressed steel wire
预应力钢丝
1.
The demands of PCCP for prestressed steel wire are expounded emphatically from such aspects as chemical .
从化学成分、组织、钢丝的拉拔、微合金化措施等方面重点阐述PCCP对预应力钢丝的要求。
2.
The stress corrosion of cold drawn prestressed steel wire hasn't been paid full attention to for a long time.
长期以来 ,冷拉预应力钢丝的应力腐蚀问题并未引起人们的足够重视。
3.
To introduce the work principle and technical characteristics of such equipments used for producing prestressed steel wire as SG1120 reel winding machine,FX1400 reel payoff and FH1200 flower basket type payof
介绍用于预应力钢丝生产的ＳＧ１１２０工字轮打轴机、ＦＸ１４００工字轮放线机、ＦＨ１２００花篮式放线机的工作原理和技术特征。
4) PC steel wire
预应力钢丝
1.
To unite traditional drawing procedure of PC steel wire with the stabilizing treatment procedure into a non-torsion drawing continuous production line.
将传统生产预应力钢丝的拉拔工序和稳定化处理工序合并成一条无扭拉拔连续作业线,采用驱动轮直径为 1 200mm的拉丝机,减少拉拔中钢丝产生的内应力;中频感应加热去应力回火热效率高;水平施加预张力,张力轮直径 3 500mm;全线由微机控制线速度、加热温度和预张力,人机界面操作,提高生产效率、成材率和钢丝内在质量,降低原材料消耗和电能。
2.
By means of mechanical performance trials and chemical analysis,metallographical examination as well as other methods,the reasons of the brittle fracture of 5 0?mm PC steel wire are analyzed and studied It is considered that the key reasons are that the 82B raw materials have serious defects of central carbon segregation and residual shrink hol
采用力学性能试验、化学分析和金相分析等手段对 5 0mm光面预应力钢丝发生脆断的原因进行分析研究 ,认为 5 0mm光面预应力钢丝脆断的主要原因是由于 82B原料中有严重的中心碳偏析和残余缩
5) prestressed steel wires
预应力钢丝
1.
Through the test of the four prestressed steel wires at elevated temperature around the range of 20 to 800,the thermal strain of the four prestressed steel wires under stress is studied,the main reasons of the thermal strain are analyzed,and the computation equations are listed.
通过对4种常用的预应力钢丝在高温下的试验,研究了4种预应力钢丝在不同应力水平下,在20~800℃范围内的变形性能,并分析了热应变产生的主要因素,给出了相应的计算公式。
6) prestressing steel wire
预应力钢丝
1.
Experimental research on the mechanical properties of prestressing steel wire(f_(ptk)=1770N/mm~2,d=5mm,low relaxation) at and after high temperature;
高温下及高温后1770级ф~P5低松弛预应力钢丝力学性能试验研究
2.
In view of the fact that creep,stress relaxation and thermal expansion are key factors on the fire resistance characteristics of prestressed structures,prestressing steel wires(standard tensile strength fptk=1770N/mm2,low relaxation of prestress)are selected to study these factors.
鉴于高温下预应力钢丝蠕变、应力松弛及温度膨胀性能是影响预应力结构抗火性能的重要因素,以1770级低松弛预应力钢丝为对象开展了研究工作。
3.
In this paper, the effects of stresses (including applied stresses and residual stresses) on the fracture behavior and corrosion of prestressing steel wires are investigated by numerical calculation and experimental method.
预应力钢丝(钢绞线)广泛地应用于预应力混凝土结构中。
补充资料：绕丝油剂
分子式：
CAS号：
性质：合成纤维长丝成型后在卷绕与丝简成型是防止单丝松散、减少断头，同时有赋予纱线以柔韧、光滑等性能所用的油剂。由平滑剂、集束剂、抗静电剂等组成。绕丝油剂的配制因合成纤维品类的不同而异。
CAS号：
性质：合成纤维长丝成型后在卷绕与丝简成型是防止单丝松散、减少断头，同时有赋予纱线以柔韧、光滑等性能所用的油剂。由平滑剂、集束剂、抗静电剂等组成。绕丝油剂的配制因合成纤维品类的不同而异。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条