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1)  Plastic thread tube
塑料螺纹管
1.
Conclusion Plastic thread tube has significantly decreased anastomotic leak,complication is low,hospitalization is short,q.
方法 回顾分析了 42例应用塑料螺纹管Ⅰ期修复左半结肠损伤的临床资料 。
2.
Conclusion Plastic thread tube has raised significantly the successful ra.
方法 采用塑料螺纹管对低位直肠癌行结肠 肛管吻合术 (Parks) 。
2)  plastic corrugated pipe
塑料波纹管
1.
On the application of the plastic corrugated pipe and the vacuum aid grouting technology;
浅析塑料波纹管及真空辅助压浆工艺的应用
2.
Combined with the project of Xinchang River Bridge, the article discusses the characteristics of the pre-stressed new technology ----- key technique in the course of constructing this bridge, and also discusses the construction technologies of using the plastic corrugated pipe, vacuum auxiliary mud jacking and super-long space steel strand.
预应力混凝土连续箱梁桥是目前中小跨径桥梁主要桥型之一,该文结合新昌江大桥工程,针对这一桥型建设过程中的关键技术——预应力新工艺的特点进行了论述,包括采用塑料波纹管、真空辅助压浆、超长空间钢束施工工艺。
3.
In this paper, the corrosion resistance technologies of post-tensioned prestressed steel are compared, and the application of the plastic corrugated pipes and vacuum-assisted grouting technology are introduced.
本文对后张法施工中的预应力筋的防腐技术进行了比较分析,并对塑料波纹管和真空压浆技术的应用作了简单的介绍。
3)  plastic ripple pipe
塑料波纹管
1.
Through applying the press plasm techniques of the pre-stress hole vacuum assistant and the remaining hole of the plastic ripple pipe,the quality of the pipe press plasm can be enhanced,which should be applied widely in the project.
预应力孔道真空辅助的压浆工艺和留孔塑料波纹管的使用,可提高孔道压浆质量,应在工程施工中广泛采用。
4)  plastic bellow
塑料波纹管
1.
According to the disadvantages of post-tensioning method prestress structure construction and new construction technology, the application of plastic bellow and vacuum mud jacking technology in Bailuo Road are analyzed from aspects as test gradation, construction, quality control, etc.
针对后张法预应力结构施工中出现的不足,结合国内兴起的施工新工艺,从试验配合比、施工工艺、质量控制要点等角度分析了塑料波纹管配合真空辅助压浆技术在百罗路上的应用,有效地保证了压浆的质量。
2.
VSPT-PLUS plastic bellow has smaller friction coefficient, so it is used in the prestressed strand of large-span bridge so as to reduce appropriately reinforcement and save the prestressed steel.
VSLPT PLUS 塑料波纹管 ,因其摩阻系数明显较小 ,故在大跨度桥梁预应力钢束应用中 ,可适当减少配筋 ,节约预应力钢材。
3.
The plastic bellows for prestressed concrete are applied widely in bridges and so on.
预应力塑料波纹管目前已在市政等工程桥梁建设中广泛使用。
5)  plastic pipe
塑料波纹管
1.
Test & study on friction loss of prestress wine with space curve in plastic pipe ZHANG Qiu-ling~1, XIAO Guang-hong~2;
塑料波纹管曲线预应力束摩阻损失系数的试验研究
6)  plastic spiral pipe
塑料螺旋管
1.
The application of plastic spiral pipe in drainage construction;
浅议塑料螺旋管在排水施工中的应用
2.
The development,function,advantage of the plastic spiral pipe were introduced.
介绍塑料螺旋管的发展、性能和优点,针对高密度聚乙烯(HDPE)板带螺旋管的推广和应用,就其在生产和施工中的特点进行分析。
补充资料:攻螺纹、套螺纹及其注意事项

常用的在角螺纹工件,其螺纹除采用机械加工外,还可以用钳加工方法中的攻螺纹和套螺纹来获得。攻螺纹(亦称攻丝)是用丝锥在工件内圆柱面上加工出内螺纹;套螺纹(或称套丝、套扣)是用板牙在圆柱杆上加工外螺纹。



一、攻螺纹



1.丝锥及铰扛



(1)丝锥



丝锥是用来加工较小直径内螺纹的成形刀具,一般选用合金工具钢9SiGr制成,并经热处理制成。通常M6~M24的丝锥一套为两支,称头锥、二锥;M6以下及M24以上一套有三支、即头锥、二锥和三锥。



每个丝锥都有工作部分和柄部组成。工作部分是由切削部分和校准部分组成。轴向有几条(一般是三条或四条)容屑槽,相应地形成几瓣刀刃(切削刃)和前角。切削部分(即不完整的牙齿部分)是切削螺纹的重要部分,常磨成圆锥形,以便使切削负荷分配在几个刀齿上。头锥的锥角小些,有5~7个牙;二锥的锥角大些,有3~4个牙。校准部分具有完整的牙齿,用于修光螺纹和引导丝锥沿轴向运动。柄部有方头,其作用是与铰扛相配合并传递扭矩。



(2)铰扛



铰扛是用来夹持丝锥的工具,常用的是可调式铰扛。旋转手柄即可调节方孔的大小,以便夹持不同尺寸的丝锥。铰扛长度应根据丝锥尺寸大小进行选择,以便控制攻螺纹时的扭矩,防止丝锥因施力不当而扭断。



2.攻螺纹前钻底孔直径和深度的确定以及孔口的倒角



(1)底孔直径的确定

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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