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。
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。
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。
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。
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
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
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。
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。
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。
To control the mechanical performancenction of prestressing wire during the on-going construction,varied stress loading speeds are employed in the test.
为掌握预应力钢丝在施工过程中的机械性能,采用不同的应力加载速率进行试验。
The developm ent of the standard systems of prestressing wires and stranded wires in our country since 1960 s to 1990 shas been highly flourishing.
我国预应力钢丝、钢绞线标准体系从60年代至90年代有了很大发展 ,90年代修订的标准GB/T5223 -1995和GB/T5224 -1995已与国际标准接轨 ,为预应力技术的发展创造了条件。
Study on the Concave-shaped Semicircular Beam of Pre-stressed Steel Wire-wound Frame
预应力钢丝缠绕机架内凹型梁的研究
Study of Effect of Stresses on the Fracture Behavior and Corrosion of Prestressing Steel Wires;
应力对预应力钢丝断裂性能和腐蚀的影响研究
Drawing fracture cause analysis of wire rod for spiral ribbed pre-stressed steel wire
螺旋肋预应力钢丝用盘条拉拔断裂原因分析
Technology of light-weight design for wire-winding prestressed cylinder structure
预应力钢丝缠绕缸体结构轻量化关键技术
med ore-stressed concrete steel wire
预应力混凝土异形钢丝
long line prestressed concrete
长钢丝预应力混凝土
Later other prestressing methods with parallel wire or strand tendons were also used.
后来，又使用其它的预应方法，如利用平行钢丝或钢绞线施加预应力。
The cold drawing wire prestressed concrete slab with circle hole is widely usedas a structure member.
冷拔钢丝预应力圆孔板是广泛使用的结构构件.
Instruction of Drawing up GB/T 5223-2002 PC Steel Wire Standard;
GB/T5223—2002《预应力混凝土用钢丝》标准编制说明
Calculation of Extension Value about Post-tensioning Prestress Steel Wire Strand
后张法预应力板钢丝束张拉伸长值的计算
Experimental Study on the Transmission Length of Prestressed Reinforcement with Helical Rib(PC Steel Bars) in Concrete
螺旋肋钢丝(PC棒)预应力传递长度的试验研究
Overview of Heavy Prestressed Bumpy Ridge Joining Structure with Steel Wire Wound
重型钢丝缠绕预应力剖分-坎合结构概述
The Numerical Analysis of Conjugate Heat Transferring for Pre-stressed Wire-winding Extrusion Cylinder
钢丝缠绕预应力挤压筒的共轭传热数值分析
Wire breaking analysis of multi-wire and large diameter pre-stressed steel stranded wire and settlement measure
多丝大直径预应力钢绞线的断丝分析和解决措施
Moreover, we also produce Epoxy-coated Steel Wire and Steel Stick for Prestressed Concrete.
此外，本公司还生产环氧涂层预应力混凝土用钢丝、钢棒。
The Study of the Mechanical Behavior of Pre-stressed and Hollow Concrete Slabs with Mid-strength (1270MPa) Spiral-ribs Steels;
中强螺旋肋钢丝预应力混凝土空心板受力性能的分析
Experimental Analysis on Dynamic/Static Mechanical Properties of a Bridge Strengthened with Prestressed High Strength Steel Wire Rope
预应力高强钢丝绳加固桥梁动静态力学性能的测试分析
Study on Flexural Strengthening of RC Beams with Near-surface Mounted Prestressed Helix Rib Steel Wire
内嵌预应力螺旋肋钢丝加固混凝土梁抗弯试验及理论研究