查询词典 presser

For replacing part of needle, presser foot, throat plate, looper, spreader, feed dog, needle guard, folder, cloth guide etc.

更换机针、压脚、针板、弯针、分离器、送布牙、护针器、支架、布导向器等时。收藏反馈

For wire bonding,we got methods to avoid low-k material layer crack and IMC crack by gold wire selection,capillary design optimization,and wire bonding process window study;Wire sweep issue was declined,after use reverse wire bonding technology to get low wire loop,define high wire loop and low wire loop between neighbour wires to reduce wire cross and split transfer course into several segments by different transfer speed to control mold flow;For molding and to different packages,as a physical method,add suitable presser during different cure process,it can reduce warpage value;As chemical methods,optimized component of molding compound or added flexiblier,it can decline thermal stress and warpage.

在引线键合方面，通过对不同纯度金线的选择、劈刀设计的优化、以及对引线压焊工艺窗口的研究，找到了可降低焊盘碎裂，金铝间化合物分层等问题的方法；通过使用反向压焊来控制线线弧高度和在邻近线间使用高(来源：A7aB4848C论文网www.abclunwen.com)低线弧来控制线弧以及模塑注塑速度细分化的方法，有效降低了冲线值；在模塑方面，针对不同封装形式，通过封装模块在烘烤过程中优化外加压力的时机，利用物理方法有效减低了翘曲；此外从化学角度出发，通过对模塑材料配方的优化以及添加应力释放剂，有效降低了封装内的热应力，减小了封装模块的翘曲。

This cylinder bed heavy duty lockstich sewing machine is especially designed for production of lugage case and luggage bag,featuring original appearance and rigid structure It is designed with sliding lever thread take-up,vertical rotating hook,cog band for driving arm shaft and hook shaft,compound feed by presser foot feed dog and needle,and disc type stitch regulator.

本机是专为箱包制造业设计的筒式厚料平缝机。结构坚实，造型新颖。采用滑杆挑线，立式旋梭勾线，构成双线锁式线迹。上下轴用同步齿形带传动；压脚、送布牙、机针同步送料；圆盘式针距调节机构。

The spare parts and gauge set for industrial sewing machines, such as like Needle Plate, Feed Dog,Presser Foot, Needle Clamp, Looper, Thread Stand, Pn...

各种工业用缝纫机零件及针位组为主的公司。所生产的零件包括针板，勾齿，押脚，针镏，弯针，线。。。

Ideally suited for sewing two needle fancy and functional seams,specially on closed shoeuppers.Owing to the combination of wheel feed nat driven roller presser,the machine stitches over cross seams with ease.Accurate and uniform setting of stitch es and i

适合于鞋面的车缝及饰缝，特殊综合送，车薄料不土起皱，车厚料缝迹美观，釜座位于针的右方，方便于童鞋及各式鞋类的车蓬，缝目设定精确一致，大小可自由调整，设有操作简便的安全离合器，可减小梭头的损坏，采用球型及针状轴承，配合连杆式天平，磨擦小免保养。

Ice Shaver, Ice Planer, Ice Crusher, Meat Grinder, Meat Slicer, Asquid Machine, Sugar Can Juice Presser, Lemon/Orange Pressing Juicer, Shake Black Tea...

刨冰机、雪花冰机、碎冰机、削冰机、绞肉机、切片机、香肠机、鱿鱼机、切肉丝机、甘蔗榨汁机、柳丁/柠檬机。。。

Based on the detailed analyzing of impact system working process, the differential eguation of the system was got, and the mathematical model of the hydraulic impact system was builted, on basis of the mathematical model, By using of dynamic simulation function of Matlab ,the author has built the simulation model of the impact system based on software Simulink and run it after inputting the parameter ,the dynamic graph curve of impact velocity and presser of oil and position of knife rest were got, and the dynamic characteristic of impact system was analyzed,the simulated results are accorded with the fact,and some rational parameters can be found.

在对冲击式采煤机液压冲击系统工作过程进行详细分析的基础上，运用微分方程建模方法，建立了液压冲击系统的数学模型即系统的动态方程，并在该数学模型的基础上，采用Matlab中的Simulink动态仿真功能，建立了基于Simulink的冲击系统仿真模型，通过给定冲击式采煤机冲击系统的相关参数，对该系统进行仿真，得到了冲击式采煤机工作过程中冲击速度和油液压力以及刀架位移的变化曲线，进而对冲击系统的动态特性进行了分析，结果与实际情况较为吻合，并由此得出某些合理的参数。

For hard-to-reach seam allowances on collar s and lapels, press them open over a point presser.

领子与驳头上难以烫到的缝份，用小烫板烫。

Micro adjusting devices added in leverage differential adjustment and presser foot lifting parts for ideal adjustment to ensure the beauty in stitch.

杠杆式差动调节和抬压脚调节都附有微调装置，可根据缝制的面料调节最佳的差动比和压脚压力，缝出漂亮的线迹

To accomplish this on the industrial lock stitch machine a few stitches are sewn and then, with both the needle and presser foot in the raised position, the fabric is brought forward and restitched.

这道工序可在工业锁针缝纫机上完成。在开始处先缝纫几针，然后抬起针和压脚，面料倒放，再缝纫几针。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。