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introduction：leserSteam safety valve LESERThe company is a pioneer in the field of mechanical engineering in Germany200Annual history，Be established in1818years，Safety valve is a professional manufacturer，It produces the worlds leading safety valve products。LESERThe safety valve products are common23Series composition（diameterDN10~400,NPS1/2”~16”），They can be adapted for applications in all industrial sectors。
2017-11-02 Reading quantity 263
introduction：leserSafety valve price The safety valve is in a normally closed state under the action of external force，When the medium pressure in the equipment or pipe rises beyond the specified value，A special valve that prevents the pressure of the medium in the pipe or equipment from exceeding specified values by discharging the medium outside the system。Safety valves belong to automatic valves，Mainly used in boilers、Pressure vessels and pipes，Control pressure does not exceed the specified value，It plays an important role in protecting personal safety and equipment operation。The injection safety valve must be tested before it can be used。
2017-11-02 Reading quantity 180
introduction：1）、Bearing inner diameter with the basic code from the right first、Two-digit representation。For common inside diameterd=20～480mmThe inner diameter of the bearing is generally5Multiple of，These two digits indicate the bearing inner diameter5The quotient obtained by division，Such as04expressiond=20mm；12expression d=60mmAnd so on。For the inside diameter is10mm、12mm、15mmand17mmBearing of，The inner diameter code is00、01、02and03。For inner diameter less than10mmAnd greater than...500mm bearing，The inner diameter expression method is otherwise specified，See also GB/T272—93。 2）、bearingDiameter series of（The same structure、A series of variations in outer diameter and width of bearings with the same inner diameter）It is represented by the third digit from the right of the base code。Such as，For centripetal bearings and centripetal thrust bearings，0、1Denotes extra light series；2Indicating light series；3Medium series of representation；4Representational weight series；7It means super light；8、9It means super light。 Thrust be
2017-11-01 Reading quantity 391
introduction：Four row cylindrical roller bearings with thrust bearings are used to achieve high load、Rolling under special conditions such as high speed。Four row cylindrical roller bearings mainly bear rolling forces，Separate mounting facilitates frequent roll changes，And it can ensure the interchangeability between different bearing seats and rolls。Work roll、The middle roller uses four row tapered roller bearingsSatisfy derived radial、Axial double load，The thrust bearing is also omitted，Easy to install and disassemble，Save equipment design space。
2017-11-01 Reading quantity 321
introduction：BGCSuitable for high-speed operation： The ball of a linear rail without a chain rotates between the rail and the seat。The relative speed of the resulting ball points is twice the speed of each other。The linear slide without a chain is the point contact between the steel ball and the steel ball。So the contact areaAVery small。Therefore surface pressure(P)Approaching infinity(P=The steel balls push against each other(F)/Contact areaA)。So no chain strap type linear slideThe steel balls are prone to wear each other。whileBGCSeries is the oil film in the middle of the ball retainer。The resulting friction is absorbed by the oil film，So in the use of speed can be used at high speed。
2017-11-01 Reading quantity 337
introduction：Three-phase induction motor(Triple-phase asynchronous motor)Its by simultaneous access380VThree-phase AC power supply（Phase difference120The degree of）A type of electric motor supplied with electricity，Due to three-phase asynchronous motorsThe rotor rotates the magnetic field in the same direction as the stator、Different speed into rotation，There is a slip，So its called three-phase asynchronous motor。 When the motors three-phase stator winding After the three phase symmetrical alternating current，Will create a rotating magnetic field，The rotating magnetic field cuts the rotor windings，Thus an induced current is generated in the rotor winding（The rotor winding is a closed path），The rotor conductor carrying current will generate electromagnetic force under the action of stator rotating magnetic field，Thus forming electromagnetic torque on the motor shaft，Drive motor rotation，And the direction of the motor rotation is the same as that of the rotating magnetic field.
2017-11-01 Reading quantity 275
introduction：With the rapid development of power electronic technology and new semiconductor devices ,Ac speed regulation technology has been continuously improved and improved ,Gradually improve the frequency converter with its good output waveform、Excellent performance/price ratio in AC motorsIt is widely used on the Internet。Such as: A large electric motor used in rolling steel in a steel mill、Small roller table motor、Traction motors for railway and urban rail transit、Elevator motor、Lifting motor for container lifting equipment、Motors for pumps and fans、compressor、Electric motors for household appliances have successively used AC variable frequency speed regulating motors ,Good results have been obtained。The use of AC variable frequency speed regulating motor has obvious advantages over DC speed regulating motor: ( 1)Easy speed regulation ,And energy saving。 ( 2)Ac motor structure is simple、Small size、Low inertia、Low cost、Easy maintenance、durable。
2017-11-01 Reading quantity 199
introduction：Yaskawa Electric Co. LTD（Yaskawa Electric Corporation）Its a Japanese manufacturer of servo systems，Motion controller，Ac motor driver，Manufacturers of switches and industrial robots。Company Motoman Robots are heavy industrial robots，Mainly used for welding，package，Fit out，spray，slice，Material handling and general automation。 Yaskawa electricThe company is in1915Established in，It is headquartered in Kitakyushu, Fukuoka Prefecture, Japan。Tsubasi Yaskawa1969Annual application“mechatronics”One-word mark，Merge with1972Be approved。Headquarters building in1954It was designed by American architect Anthony Ramon。Shares of Yaskawa Electric are traded on the Tokyo and Fukuoka stock exchanges，Nikkei225Stock index constituent stock。
2017-11-01 Reading quantity 190
introduction：Waterproof connector Waterproof connector，As the name implies，It can be applied to environments with water，The internal mechanical properties of the connector can be guaranteed under certain water pressure、Connectors with electrical performance for normal use。The connector is a part that our electronic engineering technicians often contact。Its function is very simple：Between blocked or isolated circuits in a circuit，Build Bridges of communication，To make the current flow，Make the circuit perform the intended function。Connectors are indispensable components in electronic equipment，Follow the path of the current，You will always find one or more connectors。
2017-11-01 Reading quantity 334
introduction：Anchor connector The connector is a part that our electronic engineering technicians often contact。Its function is very simple：Between blocked or isolated circuits in a circuit，Build Bridges of communication，To make the current flow，Make the circuit perform the intended function。Connectors are indispensable components in electronic equipment，Follow the path of the current，You will always find one or more connectors。
2017-11-01 Reading quantity 321
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