切割

This paper describes the inherent relationship between the haulage cutting and high speed extrusion in the production of PVC allotype plastic material and introduces a new type of haulage cutting transmission system.

阐述了在PVC异型材生产中牵引切割与高速挤出的内在关系，并介绍了一种新型的牵引切割传动系统

According to the wire electrode on the trajectory of the different forms of control, WEDM can be divided into three types:* is a copy-control, cutting their lines in advance to create the shape of the workpiece and the same mode *, When the rough machining parts and die at the same time * Clamping in the machine tool table, in the process of cutting wire electrode tightly * close to the edge of model for mobile track, thus cutting out the model * with the same shape and precision to work; another One is the optical tracking control, the cutting in line before the first parts in accordance with drawings by a certain ratio of enlarge depicts an electro-optical tracking maps, drawings will be processed when the machine electro-optical tracking placed on the stage, followed on the stage The first photo has to follow the ink line graphics track movement, and then through the use of electrical, mechanical linkage to control the machine tool table work together with the relative electrode wire Xiang Sixing do sports in order to cut out the pattern and shape of the workpiece to the same; a re - Is a digital process control, advanced digital automatic control technology, machine-driven process in accordance with the geometry of the workpiece before the parameters of good pre-processing CNC automatic completion of the processing, production do not look like without drawing board also plans to enlarge, in front of more than two Control in the form of higher precision processing and broad scope of application, at home and abroad for more than 95% of WEDM have been using digital technology.

根据对电极丝运动轨迹的控制形式不同，电火花线切割机床又可分为三种：一种是*模仿形控制，其在进行线切割加工前，预先制造出与工件形状相同的*模，加工时把工件毛坯和*模同时装夹在机床工作台上，在切割过程中电极丝紧紧地贴着*模边缘作轨迹移动，从而切割出与*模形状和精度相同的工件来；另一种是光电跟踪控制，其在进行线切割加工前，先根据零件图样按一定放大比例描绘出一张光电跟踪图，加工时将图样置于机床的光电跟踪台上，跟踪台上的光电头始终追随墨线图形的轨迹运动，再借助于电气、机械的联动，控制机床工作台连同工件相对电极丝做相似形的运动，从而切割出与图样形状相同的工件来；再一种是数字程序控制，采用先进的数字化自动控制技术，驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工，不需要制作模样板也无需绘制放大图，比前面两种控制形式具有更高的加工精度和广阔的应用范围，目前国内外95％以上的电火花线切割机床都已采用数控化。

The positive peptide cleavage promoted by complex, CuⅡL and the negative response of CuⅡ/dien complex suggest the merely hydroxy pendant in complex have no ability to attack the peptide bond. The synergic carbonyl activation by metal coordination is essential for the cleavage of peptide bond promoted by CuⅡL.

比较相应铜配合物及二乙烯三胺铜配合物的切割性能，提示羟乙基侧臂单独难以实现相邻肽键的切割，高配位数金属中心对肽键羰基的活化与羟基的协同进攻是该类配合物切割多肽的可能机制。

After transcription of ribozymes and substrate by 32 P, cleavage reaction in vitro was detected.

结果 pM1 GS 716和 pM 1 GS 337在 37℃均有切割活性，pM 1 GS 716的切割效率为 93%，pM1 GS 337为 4 2 %，而 pM1 GS 2 35几无切割效应。

Using diamond wire saw, underwater cutting experiment of seabed oil steel tube was conducted.

搭建了金刚石串珠绳锯水下切割试验系统，设置了初始试验参数，分析了管道不同部位切割时，切割面积和切口宽度与绳锯进给速度的关系。

To adopt band type rail rolled by stainless steel and chain type drive method run circumferential movement along with the pipe to be cut by flame cutting carriage,cutting torch will run radial movement driven by ball bearing screw by step motor along with the pipe to be cut,the above two dimension movement compose to inclined cutting movement of cutting torch,the inspection of circumference position of cutting torch,the determination of radial position and return point of cutting torch all controlled by SCM.

为了满足钢管斜截切割的要求，建立了钢管斜截切割的数学表达式，采用不锈钢轧制的带形轨道和链式传动的方式使火焰切割小车沿被切钢管做周向运动，割炬沿被切钢管的轴向运动由步进电动机带动滚珠丝杠完成，上述两维运动合成为割炬的斜切运动，割炬周向位置的检测、割炬轴向位置及折返点的确定均由单片机控制完成。

An object of the present invention is to provide an apparatus for cutting a sheet-shaped material, which makes it possible to accurately cut the sheet-shaped material without the occurrence of cracks on the finished product side and burrs on the cutting surface of the finished product.

本发明提供了新的一种切割成型纸材料的设备，它可以做到精确切割成型纸材料而不会发生成品纸面上的裂纹和切割面上的粘胶。

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for cutting a sheet-shaped material, which makes it possible to accurately cut the sheet-shaped material without the occurrence of cracks on the finished product side and burrs on the cutting surface of the finished product.

本发明小结本发明提供了新的一种切割成型纸材料的设备，它可以做到精确切割成型纸材料而不会发生成品纸面上的裂纹和切割面上的粘胶。

Our company is that North China area produces maximal modernized iron and steel cutting distribution base of scale , the year processes selling 600,000 tons of ability, the cutting designing that annual efficiency rolls up precise Kai Ping City of board is hit by plank cutting 300,000 tons, having metal-cutting 100,000 tons, at the same time soldering a working ability

本公司是华北地区生产规模最大的现代化钢铁切割配送基地，年加工销售能力60万吨，设计年生产能力卷板精密开平切割30万吨，中厚板切割10万吨，同时具有金属切削焊接加工能力问题补充：能不能不要用翻译软件，那个我也会用，就不劳烦您你了

The company has long been engaged in walking Products Wholesale Wire Cutting used; main products are: Diamond Wire Cutting eyes walking mode / guide wire Tsui, water covered / sprinkler Tsui, ceramic insulation board, marble nose conductive block / give electricity board, take care Using Tension round wire, round round, round wire, catheter threading conductive Silverstrand gears, bearings, cation-anion-exchange resin / French resin walking slowly filter thread cutting / Japan "TOKYO" take care yarn machine filter / EDM Filter / Japan "TOKYO" EDM filter filters Express connectors stainless steel screws, wire walking dedicated fixture / fixtures Motorola, Netherlands powerful magnet than the tables swiss ruby silk copper walking / galvanized copper / Japan's "Sumitomo"/"OKI"/"KHS" copper / brass Electricity JAPAN TOA-class silk / Japan OKI galvanized wire line walking slowly dieMaterials SKD-11, SKH-9RHV600, JAPAN NC derusting agent K -200, KC-12, WD-40 anti-rust oil, rust-proof water NOVOTEC Germany than Israel, Block Table, Switzerland EROWA Fixture

公司长期从事慢走丝线切割常用产品批发；主要产品有：慢走丝线切割钻石眼模/导丝咀，水盖/喷水咀，陶瓷绝缘板，大理石机头导电块/给电板，慢走丝用张力轮，出线轮，引线轮，，穿线导管导电银线齿轮，轴承，阴阳离子交换树脂/法国树脂慢走丝线切割过滤器/日本&TOKYO&慢走丝机过滤器/火花机滤芯/日本&TOKYO&火花机过滤器过滤器快速接头不锈钢螺丝，慢走丝专用夹具/万力治具，荷兰强力磁石瑞士红宝石较表慢走丝铜线/镀锌铜线/日本&住友&/&OKI&/&KHS&铜线/日本TOA黄铜电级丝/日本OKI镀锌线慢走丝模具五金材料SKD-11，SKH-9RHV600，日本NC除锈剂K-200， KC-12，WD-40防锈油，德国NOVOTEC防锈水以色列较表座，瑞士EROWA 夹具

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。