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introduction：Now the use of agricultural machinery in rural areas is more common，Various faults occur during operation。In normal maintenance，Although widely used instrumentation、Instruments to identify the technical status of farm machinery parts，But by sight、Auditory sense、Tactile this“Three enlightenments”Identification is still very practical、Very convenient。 Visual identification。Can identify external parts wear，And parts surface material quality。Such as the cylinder block、Crack on cylinder head，Gears and flow bearings[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 machines
2015-02-24 Reading quantity 1437
introduction： Standard number Standard Chinese name Standard English name JB/T7044-1993(2005reexamine) Hydraulic axial piston pump Test method JB/T7043-1993
2015-02-24 Reading quantity 2908
introduction：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，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]After installation，To check that the installation is correct，An operational check is required。Small machines can be turned by hand，To make sure the rotation is smooth。Check items for foreign bodies、scar、Poor operation due to indentation，Due to poor installation，The torque caused by poor machining of the mounting seat is unstable，by
2015-02-24 Reading quantity 1544
introduction：shengjiangtai xichuang Lifting table milling machine knee and column milling machine Table can be lengthwise、Milling machine with lateral and vertical feed motion。The lifting milling machine is used to process the surface of small and medium-sized parts、groove、Spiral or forming surface, etc,There are mainly universal、Horizontal and vertical3Kind of。①Universal lifting table milling machine：Its bed is attached to the base，The lifting platform is driven by a vertical screw mounted on the base，Vertical guide rails along the bed（See machine guide）Go up and down(See picture[Universal lifting table milling machine])。slide
2015-02-24 Reading quantity 2794
introduction： 8.1summarize Low pressure casting is to fill the cavity with liquid metal under pressure，A method of forming castings。Due to the lower pressure used，So its called low pressure casting。Its technological process（See picture1）is：In sealed crucible（Or sealed can）In the，Through the dry compressed air，Molten metal2Under the action of gas pressure，Along the riser pipe4rise，Through gate5Smoothly into the cavity8，And maintain the gas pressure on the surface of the crucible，Until the casting is completely set。The gas pressure on the liquid surface is then relieved，Crucible for unsolidifying metal flow in the opening pipe，Rerun cylinder
2015-02-24 Reading quantity 2791
introduction： Realize centralized control of chemical water treatment，The power plant cuts jobs and increases efficiency，Means to improve the level of chemical automation。Thermal power plant chemical water treatment system water、The quality of steam directly affects the safety of thermal system units、Stable economic operation。With high parameter、The rapid development of large capacity units，The automation of chemical water treatment system is required more and more.therefore,Improve the automation level of chemical workshop in thermal power plant,The implementation of chemical workshop network automation management is an inevitable trend in the development of modern electric power enterprises。 System adoptionWindowsNTplatform,An independent network system is formed in the chemical workshop of the power plant,Parallel power plant
2015-02-24 Reading quantity 2877
introduction：1、Plastic concept ◆polymer(polymer)，Also known as macromolecules or macromolecules(macromolecules)，It is also commonly known as plastic(plastics)orresin(resin)。So-called plastic，Its actually one of the synthetic resins，The shape is similar to the pine resin found in natural resins，But because of the power of chemistry to synthesize，Its called plastic。 ◆As defined by the American Society for Testing Materials，Plastic is a kind of material with high molecular weight organic matter as the main component，It takes on a solid shape when processed，
2015-02-24 Reading quantity 2891
introduction： Granulation principle After drying, various dry powder materials are added from the top of the dry granulator、It is pre-compressed into the sheet mill，Under the double roll extrusion of the sheet mill，flake，The flake material is broken，Whole grain，Sifting powder and other processes，Get the granular product you need。 Product characteristics The material is formed by mechanical compression，Does not damage the chemical properties of the material，Does not reduce the effective content of the product。 The whole process is closed，No inflow，High product purity，And the product has no pollution to the environment。 Production process automation，Suitable for mass production。 Complete equipment，Where contact material department
2015-02-24 Reading quantity 2799
introduction：with“Application development and industrialization of magnesium alloy”In-depth implementation of the project，There are many problems in the actual production of enterprises，Such as process and safety issues，This is because most domestic magnesium alloy die casting enterprises contact magnesium alloy for the first time。therefore，In this paper, the machining technology and safe operation procedure of magnesium alloy die casting parts are introduced in general，For reference。 1Machining of magnesium alloys The density of magnesium alloy is lighter than aluminum alloy36％、Lighter than zinc alloy73％、Lighter than steel77％，It is recognized as the lowest mass structural metal material。Machining of small batch magnesium alloy parts is available in
2015-02-24 Reading quantity 1534
introduction：With the continuous improvement of peoples living standards，The demand for all kinds of convenience foods has also increased，This further stimulated the rapid development of Chinas food packaging industry。Vacuum packaging machine is one of the fastest developing packaging machinery，It has broad prospects for development。Nantong Tengtong Packaging Machinery Co., Ltd. for how to choose vacuum packaging machine and special specifications（non-standard）Some views on the order of vacuum packaging machine are put forward。 Vacuum packaging machine selection and purchase precautions According to the main structure and configuration components of the vacuum packaging machine，A high-quality vacuum packaging machine must have the following basic conditions：
2015-02-24 Reading quantity 2788
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