According to practical engineering situation,the author introduces code requirement and pre-stress bar stretching program,illustrates conceiving process of its construction scheme,analyzes calculation method of stretching construction s double control index,and points out application characteristics of the stretching program.
根据工程实际情况,介绍了规范要求及预应力筋张拉程序,阐述了施工方案的构思过程,分析了张拉施工的双控指标计算方法,指出该张拉程序的应用特点。
Geometric Parameters and Numerical Simulation of Drawing Process for Odd Number Side Drill Hollow Steel Stem;
奇数边中空钢钎杆几何参数及拉拔过程数值模拟
Forming Process Design of Pipe Drawing Based on Multi-objective Optimization;
基于多目标优化的钢管拉拔成形过程设计
3D FEM simulation of cross tube drawing process;
十字形钢管拉拔成形的三维有限元模拟
5% single pass draught to draw,taking all these measures can get the product with high strength,high toughness and definite bending property.
5%的单道次拉拔,可获得高强度、高韧性且具有一定弯曲性能的产品。
Some methods of forcing lubrication under drawing were introduced,and their characteristics were analyzed.
介绍了拉拔过程中强制润滑的几种方法,分析比较其优缺点,提出了把动、静压流体强制润滑两种方法相结合的设计方法。
It is considered by examination and analysis that the main causes of brittle fracture in drawing and lower specific elongation of finished wire are local martensite existence for alloy elements’segregation, carbon segregation leading net cementite and the continuity of metal being destroyed by high nonmetal inclusion; the transverse crackles of steel wire surface are due to the deep.
借助金相组织观察和电子探针检测,对PC钢丝生产中出现的质量问题进行研究,检测和分析认为拉拔脆断和成品钢丝延伸率低的主要原因是合金元素偏析导致局部马氏体存在、碳偏析引起网状渗碳体及严重的非金属夹杂物破坏金属的连续性;钢丝表面横裂主要是轧钢过程中折叠的表面氧化铁皮较深,或拉拔过程中润滑不良造成局部过热,导致表层产生马氏体引起的;钢丝表面划伤主要由线材出现耳子和椭圆度过大以及拉丝模安放不正所致。
The drawing stress increased with the speed rise at low speed.
在低速拉拔时,拉拔应力随拉拔速度的增加而增大。
Puller Set—C-293-PA
拉拔器套件—C-293-PA
Distributor Bushing Puller C-3052
分电器套管拉拔器C-3052
Cylinder Liner Puller VM, 1001
汽缸套拉拔器VM, 1001
Transverse crack analysis of SWRH 82B wire rod drawing
SWRH82B盘条拉拔横裂纹分析
Hold puller screw and tighten puller nut until bushing is remove
握紧拉拔器螺栓，拧紧拉拔器螺母，直至拆下衬套。
The Numerical Simulation of Steel Tube Drawing Process with a Short Mandril and Optimizing Design for Tube Drawing Process and Mandril;
钢管短芯棒拉拔过程的数值模拟及拉拔工艺、芯模的优化
Tension and shear test methods for building anchors
建筑锚栓抗拉拔、抗剪性能试验方法
pulling-in dogs
(拉拔用的)夹料钳，牵引链钳，带头线钳
TEST AND ANALYSIS ON RESIDUAL STRESS OF COLD-DRAWN TUBE AND BAR
冷拉拔管棒材的残余应力测试与分析
Research on Drawing Process of AZ31 Magnesium Alloy Wire;
AZ31镁合金丝材拉拔工艺的研究
Research on Bond Performance between the Rusted Bar and Concrete by Pullout Tests;
钢筋锈蚀拉拔试验及其粘结性能研究
Design and Experimental Investigation on FRP Helical Anchor;
FRP螺旋锚的拉拔试验与应用设计
Cause Analyses on Brittle Fracture of 82B Wire Rod;
82B高碳钢盘条拉拔脆断的原因分析
Research on Processing Technology for Cold Drawing Wire of TC4 Titanium Alloy
TC4钛合金棒线材冷拉拔加工工艺研究
BREAK CAUSE ANALYSIS FOR ER70S-6 WIRE BAR IN DRAWING AND ITS CONTROL
ER70S-6盘条拉拔断裂的原因分析及控制
Research on Drawing Process of 0Cr16Ni6 Hexagonal Steel Bar
0Cr16Ni6六角钢棒拉拔工艺研究
Discussion of steel wire direct drawing production without intermediate heat treatment
钢丝无中间热处理直接拉拔生产探讨