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introduction：3-ASanitary standards corporation(3-A SSI)It is a non-profit company well-known in the food and dairy industry501(c)(3)Health standards-writing agency。It is launching a plan to develop standards for equipment applicable to the pharmaceutical industry。This plan is proposed because there is no similar standard at present。These standards will be namedP3-A，It will establish baseline design criteria based on the principles of hygienic design and cleanability。These standards will provide a performance benchmark for pharmaceutical devices。 In fact，The pharmaceutical industry has been demanding standards for some unit equipment，Like a pump、Mixers and conveyors, etc。But for now, according to one
2015-02-25 Reading quantity 2873
introduction：zhuangjia gongchengche Armored engineering vehicle armoured engineer vehicle Field construction machinery with protective armor and various working devices（See military construction machinery）。Some countries also call some armored engineering vehicles combat engineering vehicles(See picture)。It is mainly used to open a path through obstacles under enemy fire；Repairing damaged roads in field conditions,Tank building、Gun shelter,Support tank、Combat operations of mechanized troops。Some can also be used in the river crossing offensive battle to build the bank approach and level the river bottom，bao
2015-02-25 Reading quantity 2792
introduction：We tend to think of important equipment as a resource whose performance degrades over time。however，If a machine can become unconstrained to learn from its own errors，Thus from one processing cycle to the next，What about improving its performance？In other words，So what if the machine can improve itself？ GE Fanuc(Located in Charlottesville, Virginia, USA)suppliedCNCSystem，A so-called”Learning control”The characteristic of，It makes this self-improvement possible。Engage this learning control，CNCThe system compares the actual movement of the machine tool with the programmed path
2015-02-25 Reading quantity 2796
introduction： GSK218MCNC system of machining center is a popular CNC system independently developed by Guangzhou CNC Equipment Co., LTD，Adaptive machining center、CNC milling machine、CNC drilling machine and other machine tools。System adoption32bit-high-performanceCPUAnd very large scale programmable devicesFPGA，Real-time control and hardware interpolation technology ensure the systemumRate under grade accuracy。 The standard configuration of the system is four-axis three-linkage，Rotation axis can be set by parameter，Four-axis four-linkage is optional，Maximum system positioning speed30meter/points，Maximum feed speed15meter/points。 adoptμC/OSReal-time operating system is full
2015-02-25 Reading quantity 2784
introduction： A general term for metal cladding made by various methods。among﹐electroplate﹑Metal spraying and surface alloying methods are widely used﹐Hot dip metal cladding﹑Methods such as coating and gas deposition also have certain applications。 Hot dip metal cladding The base material of the workpiece is immersed in a molten metal bath﹐And interact with molten metal to form。A common one is zinc﹑aluminum﹑tin﹑lead﹑lead-Metal coating such as tin alloy。Zinc produced by the steel industry﹑zinc-aluminium﹑Aluminized metal layer of sheet metal﹑Tube material﹑strip﹑Wire and other metal clad products account for the largest number。The hot impregnated tin has faded
2015-02-25 Reading quantity 2793
introduction： A loading and unloading machine that reverses or tilts a railcar for unloading﹐It is suitable for the port with large traffic volume and metallurgy﹑coal﹑Industrial sectors such as thermal power。Most of the cars under the mine are unloaded with small dumpers。Dumper rotary drum type﹑Side dump type﹑End dump and compound 4Kind of。All kinds of dumpers are made of metal frames﹑The driving device and clamping mechanism are composed﹐Driven by AC motor。 Rotary drum dumper﹕The truck is pushed into a metal frame shaped like a drum(figure1 Rotary drum dumper )After inner clamping﹐The cylinder is rotated by a driving device140°～170°﹐The bulk material in the car is from
2015-02-25 Reading quantity 2791
introduction： FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]After the installation on the host is complete，Such as measuring the radial runout of the spindle，It can be found that the measured value of each turn has a certain change；When measuring continuously，It can be found that after a certain number of revolutions，This change is approximately repeated。The index to measure the degree of this change is the rotation accuracy of the cycle，The variation is approximately repeated by the number of revolutions required to represent the accuracy of the cycle rotation“quasi-periodic”，In a quasi-period
2015-02-25 Reading quantity 1451
introduction：1、Shaft and bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Selection and control of room tolerances IKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，most
2015-02-25 Reading quantity 1556
introduction： The requirements for a uniform heat balance on the hot runner plate mainly include the absence of local temperature differences as far as possible，Because when the probe(Torpedo body)It is heated indirectly by the hot runner system，The same temperature at the tip of the probe is a necessary prerequisite。The hot runner plate must have as little temperature fluctuation as possible one—Most pads should be as high as possible ——Heat loss should be as little as possible ——The temperature should be controlled。 To determine the heating capacity of the hot runner mold，The heating capacity of the hot runner plate has been proven according to150～300WeightsThe ratio of its results is successful
2015-02-25 Reading quantity 2799
introduction： CODE：00291 Device name：Roll grinding machine Type specification：Maximum grinding diameter≥1250mm Unit of measurement：Taiwan Main parameter content
2015-02-25 Reading quantity 2794
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