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introduction：Isolated signal amplifier(Isolated signal op amp)Used for various signal conditioning of field instruments，isolate，And converted to a computer，DCS，PLCSuch as acceptable standard signal or user specified special signal。When the signal is transmitted at two points without equal potential,Avoid loop current interference.Ensure the accuracy of the signal.
2015-06-08 Reading quantity 3022
introduction：An elastic diaphragm is used as a cut-off valve for opening, closing and sealing parts(Sight valve)。figure[Typical structure of diaphragm valve]Typical structure of diaphragm valve。Body is ridge type，The roof ridge and diaphragm form a sealing pair。Peridiaphragm fixation，It divides the valve chamber into two parts that are not interconnected。The lower part of the diaphragm is a fluid channel。Valve clack、Valve stem、The valve cover and other parts are located on the upper part of the diaphragm，Isolation from fluid，Resistant to fluid corrosion，At the same time, it can prevent impurities such as rust from contaminating the fluid。Diaphragm valves do not require stuffing boxes，There are no stem seal issues。The body is usually lined with rubber or enamel，There are also integral use of corrosion-resistant metal or non-metallic materials（Like stainless steel
2015-06-08 Reading quantity 2876
introduction：A machine tool attachment that uses a chuck or a center and dial to hold the work piece and turn it around and index it。The dividing head is mainly used for milling machines，It is also commonly used in drilling machines and surface grinders，It can also be placed on the platform for the fitter to mark。There are two main categories of indexing head: universal indexing head and credit indexing head。 The general dividing head can be divided according to the dividing method and function 3Kind of。①Universal dividing head：Most widely used。The spindle can be tilted at any Angle between horizontal and vertical directions（See picture[Universal dividing head]）。The indexing mechanism consists of the indexing plate and the transmission ratio1：40s worm-Worm gear pair（See worm drive）Make up，points
2015-06-08 Reading quantity 2888
introduction：1、Abide by《Casting equipment can be used operating procedures》Relevant provisions。 2、Open the intake felling，Check whether the pipes are air-tight，If there is gas leakage，Notify maintenance personnel to repair。 3、Set foot on the cutting，Check whether the cylinder lifting speed is appropriate，Too fast or too slow，The inlet screw of foot cutting should be adjusted in time。 4、inspectionally、Whether the launching device is leaking or blocked，If there is leakage or blockage，The relevant personnel should be notified for repair。 5、Cylinder rise，Keep your hands off the board，So you dont get your fingers between the plates，Cause personal accident。 6、After work stops，Should tie the foot
2015-06-08 Reading quantity 2876
introduction： MorickTM 33Extreme low temperatureNSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]Grease operating temperature range from-7
2015-06-08 Reading quantity 1566
introduction： Cutting and stamping Because stainless steel is stronger than ordinary materials，Therefore, higher pressure is required for stamping and shearing，When the gap between the knife and the knife is accurate, bad shear and work hardening can not occur，Plasma or laser cutting is preferred，When gas cutting or arc cutting is necessary，Grinding of the heat affected zone and the necessary heat treatment。 bending The board can be bent to180，But in order to reduce the bending surface cracks with the same radius size is best2Twice the thickness of the plate，Thick plate along the calendering direction to give2Multiple plate thickness radius，When bent vertically with the calender4
2015-06-08 Reading quantity 1541
introduction：Continuous casting 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。]It is a kind of steel bearing。Often used in the application of steel machinery，It is also a more common kind of bearing。Japan Seiko has developed a tapered roller imported bearing that can be automatically aligning[Imported bearing:Simply put, the import bearing agent is engaged in an import shaft
2015-06-08 Reading quantity 1541
introduction： The structure of bonded bolt is simple，Easy to use，Large anchoring force，The anchoring length can be increased or full length anchoring can be performed，Further greatly improve the anchoring force，It is an ideal roof anchoring form。 1.rebar、Wire rope mortar bolt The anchor rod makes use of the bonding force between cement mortar and anchor rod and the bonding between mortar and rock stratum to achieve the role of anchoring rock stratum。rebar、The anchoring force of the wire rope mortar bolt is50KN。When the bar diameter is less than10mmwhen，Can be double tendons at a glance（Bamboo tendons can also be double tendons at a glance）。 2.Round steel twist anchor bolt
2015-06-08 Reading quantity 1567
introduction： Main shaft 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。]Oil is a special lubricating oil for spindle bearings of precision machine tools and similar equipment，It ensures the working accuracy and performance of the spindle，Prolonging its service life plays a very important role，Also known as bearing oil。 Its main performance: 1.Suitable viscosity and good viscosity-temperature characteristics
2015-06-08 Reading quantity 1496
introduction：Affect the linear plain 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。]Service life can have many factors that may cause factors and internal friction sound has been further instructions for use。The main factor used for adjustment is installation，Use and maintenance，Maintenance and repair，And meet the technical requirements。According to the installation of needle roller bearings，Use，upkeep，Maintenance technique
2015-06-08 Reading quantity 1745
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