筒

According to the hypothesis of continuum, a tube with the corner strengthened is gained to make an equal of the frame-tube. B3-spline functions and parabola functions are applied to simulate the displacement functions of the frame-tube. The system of equations about the undetermined coefficients of displacement functions is deduced by using energy-variational principle, by solving which the displacement of the frame-tube is gained. Then the internal forces in the columns and beams of the former frame-tube are obtained according to the principles of elasticity mechanics.

根据连续化假设将框筒等效为角部加强筒体，将三次样条函数与抛物线函数结合假定框筒的位移函数，运用能量变分原理推导出了关于位移函数待定系数的方程组，解得位移函数待定系数进而解得框筒的位移，再根据弹性力学原理确定原框筒中梁柱的内力。

The utility model characterized in that the syringe's (2) inner wall, the parts at the back end of the syringe's (2) jaw opening, is a subuliform ring blocked, and the handspike's (4) outer wall, the parts close to the back end of the handspike(4), is heaved to the inside with more than two pieces of wing panels matching to the subuliform block ring.

本实用新型提供了一种一次性注射器，由针头（1）、针筒（2）、活塞（3）、推杆（4）组成，针筒（2）前端的乳头上套装连接着针头（1），推杆（4）前端连有活塞（3），其特征在于针筒（2）后端开口处的内壁上设有锥形挡环（5），在靠近推杆（4）后端处的推杆（4）外壁上设有与锥形挡环（5）相配合的向针筒（2）内壁凸起伸出的两支以上的翼片（6）。

The internal relations between average velocity of water flow and load weight is discussed when stuff canister moves incipiently.

以筒装料管道水力输送中料筒起动阶段为研究对象，研究料筒起动时承担输运任务的水流的平均流速与料筒荷重间的内在联系。

The article studies mostly the incipient motion process in tube-contained raw material hydraulic transportation. The internal relations between average velocity of water flow and load weight is discussed when stuff canister moves incipiently.

以筒装料管道水力输送中料筒起动阶段为研究对象，研究料筒起动时承担输运任务的水流的平均流速与料筒荷重间的内在联系。

To have the level of fourth-generation technology, thanks to good fortune by the German-made automatic winding machine AC338 for example, with the third-generation type of comparison, the practical winding speed of nearly 30 percent, most can be as high as 2 000 m / min;筒纱quality increased yarn Uster CV value of the two machines are basically the same though, but the quality of yarn, such as details of 1000 meters from 14.5 to 12, 17.24 percent lower; km thick section from 134.3 to 121.7 , 9.38% lower; Neps kilometers from 121.6 to 115.5, lower 5%; 3 mm in length Hairiness (months / 10m) from 135 down to 102, reduced 24.4%; 14.36% increase in production; production efficiency 8.5%, not筒纱the use of high-quality, the following procedures brought about by economic interests.

以具有第四代技术水平的，由德国赐来福公司制造的AC338型自动络筒机为例，与第三代型机比较，实用卷绕速度提高了近30%，最可高达2 000 m/min；筒纱质量大幅度提高，乌斯特条干CV值两机虽然基本相同，但纱的质量如千米细节由14.5降至12，降低了17.24%；千米粗节由134.3降至121.7，降低了9.38%；千米棉结由121.6降至115.5，降低了5%；3 mm长度毛羽(个/10m)也由135降到102，降低了24.4%；产量提高14.36%；生产效率提高8.5%，这还不算使用高质量的筒纱后，后道工序所带来的经济利益。

Analysis of tube-in-tube structure of variable cross-section in torsion;2. By assuming the structure to be continuous,the Hamiltonian dual system of coordination analysis is established for tube-in-tube structure s,in which the shears and flexures of the inter and the outer tubes are considered as Timoshenko beams.

在结构连续化假定的基础上，将内筒和外筒视为铁摩辛柯梁，同时考虑内筒和外筒的剪切与弯曲变形，建立了筒中筒结构协同分析的哈密顿对偶体系，导出了相应的状态空间方程，其系统矩阵具有辛矩阵的特性，可用精细积分法求该体系的高精度数值解。

The body has drum mixed with four leaves, stirring with a good performance out of the concrete mix to make a more uniform 2: mixed leaves on a mixed open hole to raise the quality of concrete mixing; 3 ----- sealed tube was funnel shape, Large caliber to ensure a smooth feed: 4: Lo leaves were added to the top surface wear protection, to extend the service life of the leaves, 5 leaves on a few large rectangle-shaped hole and the hole in the concrete to reduce the adhesion of the leaves; 6 : Mixing cylinder B520JJ optional alloy steel materials, wear resistant materials; 7 from the first block plate spinning, 8: ZG35 stirring drum track using the material, casting molding.

筒体内有四块拌叶、具有良好的搅拌性能，使拌出的混凝土更加均匀2：拌叶上开有拌孔能提高混凝土搅拌质量；3密封管-----呈漏斗形状，口径大能确保顺利进料：4：螺叶片呈曲面顶端加防护耐磨条，延长叶片使用寿命，5叶片上有几个圆孔及长方钜形孔减少混凝土在叶片上的粘附； 6：搅拌筒体材料选用B520JJ合金钢、抗耐磨材质；7封头由整块钢板旋压成型，8：搅拌筒轨道采用ZG35材质，经铸造成型。9：搅拌筒壳体各部件由高强度及高耐磨材质制作而成。10：搅拌筒整体焊接采用自动埋弧焊技术。

XD-2003 strap machine is changed from XD-2002 machine which has a cast aluminium on the bed,making the screw,screwtube and speed reducer keeping concentric.the V-model manger on the bed is lower than the flat on which the speed reducer is fixed,the components are finished machining by machine tool.guaranteeing perpendicularity, degree of balance.speed reducer,screw and screwtube is fixed on the base,and the screwtube is in the mini-manger,then ensuring axis keeping concentric with sheath,screwtube feed opening has a chromium hard-wearing sheath,which can improve the lifetime of the screw and screwtube to threefold or to fourfold.

XD-2003 型塑料打包带机组，是在XD-2002型机组的机座上安装了一个铸铁机座，使螺杆，螺筒和减速机保持同心，座上的V型槽比安装减速机的平面低，其部件都是经过机床精加工完成的，保证了垂直度和平衡度。减速机和螺杆、螺筒置于底座上，且螺筒卡在微型槽内。确保轴与套保持同心，螺筒下料口处设有高铬耐磨衬套，这样可使螺杆、螺筒的寿命提高3-4倍。

As the lens barrel is provided with the inner metal tube which is integrally formed together with the outer plastic tube, the problem that the precision of the lens barrel is not enough due to the cooling shrinkage deformation of the common lens barrel adopting a plastic material is avoided.

由于所述镜筒具有一金属内筒，且其与所述镜筒的塑胶外筒一体成型，故可以避免普通镜筒采用塑胶材质时冷却收缩变形而导致镜筒的精密度不够的问题。

Jinyang company has Precision Screw Products Barrel (Barrel nitride screw, double screw alloy pipe, stainless steel screw cylinder, all-hardened screw, high-speed tool steel screw Barrel): injection molding machine screw feed extinguishers, extruder screw barrel, blow molding machine screw cylinder, chemical fiber Screw Barrel, Single-screw cylinder, parallel twin-screw barrel, conical twin-screw cylinder, screw feed tube attachment; Product selection quality 38CrMoALA; quality SACM645; quality SKD11; quality SKD61; 9Cr18MoV such as high-quality materials, the quenching and tempering, molding.

主要销售注塑机的螺杆，料筒等相关配件金洋公司主要产品有精密螺杆料筒（氮化螺杆料筒、双合金螺杆料管、不锈钢螺杆料筒、全硬化螺杆、高速工具钢螺杆料筒）：注塑机螺杆料筒、挤出机螺杆机筒、吹塑机螺杆料筒、化纤机螺杆料筒、单螺杆料筒、平行双螺杆炮筒、锥形双螺杆料筒、螺杆料管附件；产品选用优质38CrMoALA；优质SACM645；优质SKD11；优质SKD61；9Cr18MoV等优质材料，经调质、成型。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。