螺纹

Designing with this CARD system can shorten the design cycle of the new product, lowering the consumptions of the mills and the production cost, advancing the dimensional accuracy and the mechanical character of the finished thread steel bar. It has the important significance for increasing the economic benefit of the enterprise.

采用本螺纹钢CARD系统进行孔型设计，极大地缩短了新产品的设计周期，降低了轧机能耗和生产成本，提高了螺纹钢筋成品的尺寸精度和机械性能，对增加企业经济效益具有重要意义。

This study discusses the economic and society benefits of popularizing and using the Y small diameter cold-rolling screw thread steel reinforcing bar in the enterprises by analyzing the technology parameters,the structure characteristic and the principle and the technology economic of the small diameter cold-rolling screw thread steel reinforcing bar .

通过对Y形小直径冷轧螺纹钢筋机组的技术参数、结构特点、工作原理、试验分析和技术经济分析，论述了在企业推广使用小直径冷轧螺纹钢筋的经济效益和社会效益。

The thread form and helical angle of screw are key factors that influence the screw-in ability of a bolt and reliability of screw coupling. There exist significant correlation between them, therefore the contour of thread portion can be used to judge the acceptability of a bolt.

牙形和升角是影响紧固螺纹通过性和接触可靠性的重要因素，它们之间存在良好的相关性，通过检测紧固件螺纹部分的轮廓线的形状和位置可以判断其通过性和接触可靠性。

"Transfer mode" used motor oil transfer mode, there is no overload protection function, the load increased, the four tension rod threads, thread nut transfer mold damage.

&调模&使用油马达调模，没有过载保护功能，负载加大后，四根拉紧杆螺纹、调模螺母螺纹会损坏。

Conductive thread of a hole without cutting tapping new technology to solve the past conductive thread easily slip teeth of the defects.

导电件螺纹孔采用无切削攻丝新工艺，解决了已往导电件螺纹容易滑牙的缺陷。

Variety: Tap ordinary screw extrusion, extrusion Taps US-made thread and various other special requirements of the extrusion Taps.

品种：普通螺纹挤压丝锥，美制螺纹挤压丝锥和其他各种特殊要求的挤压丝锥

By tapping with 3.3mm screw tap on different bone blocks with various denity, data of cutting resistance was collected for analyzation.

实验方法是使用3.3厘米的攻螺钉在不同密度的人造骨块上攻螺纹，将攻螺纹时的切削阻力记录下来，分析切削阻力与人造骨密度的关系。

An experiment was conducted using the bond stress of the anchor agent, the corrosion degree of the screw spike and the eccentricity as the variables to test the withdraw resistance of the screw spike. The multiple regression analysis shows that three main factors have influence on the anchor withdraw resistance of the screw spike.

同时，以锚固剂的结合应力、螺纹道钉的锈蚀程度和偏心度等3个因素为变量对轨道螺纹道钉抗拔力进行实验，采用多元回归分析的方法对实验数据进行计算分析。

Methods 34 cases were divided into three group:traction group:6 cases,fixed by hollow screw thread;nail group:16 cases;artifical joint group:12 cases.

方法将34例老年股骨颈骨折分为牵引组、空心螺纹钉治疗组、人工关节治疗组，其中牵引组6例，空心螺纹钉组16例、人工关节组12例。

This paper analyse the influence on the torque and pre-tight forceof bolt, which is caused by the changing of friction factor, because the adhesiveagent is used in screw joint, and present some questions which must be noticedin screw joint when adhesive agent is used.

本文分析了螺纹连接中，使用粘接剂而引起摩擦系数的变化对螺栓拧紧力矩和预紧力的影响，提出了在螺纹连接中，使用粘接剂应注意的问题。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐