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introduction：Recent years，The compression molding process is applied to thermosetting blends，Such as urea-formaldehyde plastics、Phenolic resin、Epoxy resin、Melamine resin and rubber。Although there are some materials available for injection molding，But the use of compression molding process is still very common。The materials used in die casting require softer plasticity than those used in pressure molding。Many thermosetting materials have high impact resistance（1.0ftonelb）And good notched impact strength retention，It only flows under extreme pressure。 Compression molding The obvious advantage of compression molding of thermosetting materials is the simplicity of the system。The material is placed into a heated cavity，Hold pressure until required bunching time。Because the process is simple，Low cost。append
2015-06-01 Reading quantity 2963
introduction： timkenbearing[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。]The installation is not reasonable，It will affect the accuracy of the bearing、Life and performance。therefore，Please fully study the installation of bearings，Please install the bearing according to the operating standards including the following items。 one、Cleaning bearings and related
2015-06-01 Reading quantity 1523
introduction： How to brake electric forklift truck 1、For internal combustion forklifts，Apply slow down parking brake when operating。That is, in the process of picking up or unloading goods，The lower the speed of the forklift, the safer。Because of the short distance，And keep the engine running，Drivers tend to slow down with the clutch pedal，When the fork is in place，Press the brake pedal to stop the car。It can be seen that predictive braking is often used in forklift operation，It is to improve operational efficiency，The key to safety。 2、Predictive braking。Predictive braking is
2015-06-01 Reading quantity 2858
introduction： A few concepts about planetary reducer: series:Number of sets of planetary gears.Because a set of star gears can not meet the larger transmission ratio,Sometimes need2Nested or3Set to meet the requirements of championing a larger gear ratio.Because the number of star gears increased,therefore2Lv OR3The length of the stage reducer will be increased,There will be a decrease in efficiency. Return clearance:Fix the output,The input is rotated clockwise and counterclockwise,Make the input end produce rated torque+-2%Torque hour,Theres a slight angular displacement at the input end of the reducer,This angular displacement is the return clearance.The unit is..."points",Just one degree
2015-05-31 Reading quantity 2930
introduction： A power supply is included in the car、Ignite、start、Signal lighting、An electrical system consisting of instruments and auxiliary electrical devices。 ① Power supply system:The electrical energy needed to power a car，It is supplied by two power sources: generator and battery。A generator is driven by a car engine to generate electricity，It is equipped with voltage adjustment devices，To ensure the stability of voltage and other parameters，The traditional generator is the DC generator，Now most use silicon rectified alternators。 ② Ignition system:To ensure punctual and reliable ignition of the combustible mixture in the gasoline engine（See gasoline engine ignition system）。 ③ Starting system:By direct current motor、Driving fitting
2015-05-31 Reading quantity 2906
introduction： The principle of electric forklift selection General principles of electric forklift selection： 1、As far as possible to meet the technical requirements of the machine itself。In line with the basic use of the machine itself，Reliable and efficient in use、Easy to operate、secure；Similar goods should try to choose the same type of standard machinery，To facilitate maintenance，At the same time simplify the technical management of machinery。 2、Good generality，One machine with multiple functions。Ready to unload、The object of moving materials，Due to the wide variety、Different specifications，And the form of packaging is also different
2015-05-31 Reading quantity 2992
introduction：fenmo yejin duokong cailiao Powder metallurgy porous materials powder metallurgy porous material Its made by powder metallurgy、A material with a porous internal structure（Or article），It is generally made of spherical or irregularly shaped metal or alloy powder by forming and sintering，Also known as sintered porous material。The material is criss-crossed with pores、Interpenetrating porous bodies，Usually have30～60％Volume porosity，aperture1～100micron。A common metal or alloy is bronze
2015-05-31 Reading quantity 2867
introduction：The mechanical properties of pure copper are average，Even through cold rolling or forming，Can not meet the mold material requirements，Generally used as an auxiliary material。As a material for making molds，The most important properties of copper alloys are their excellent heat transfer properties and ductility，Can quickly and safely offset the stress due to uneven heat decomposition。Good thermal conductivity，The temperature difference between the cavity wall and the cooling channel can be reduced，At the same cooling capacity，The beryllium copper alloy mold guarantees a higher injection molding product yield with the quality of the injection molding product。Beryllium copper alloy is also suitable for injection molding products with high surface quality requirements。In the bronze used today，Be commonly used as
2015-05-31 Reading quantity 2860
introduction： Basic type of drum roller 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。]Both window glass fiber reinforced polyamide can be used（nylon）66heeler（suffixT），Machined brass solid stand can also be used（suffixMB）。Glass fiber reinforced polyamide66The stick frame is reachable in a stable temperature configuration12
2015-05-31 Reading quantity 1638
introduction：Join with our countryWTO，The development of global economic integration，It will inevitably have a huge impact on the technology of our traditional industry。We must reform the traditional way of processing，To adapt to the market。To participate in international competition，It is necessary to be in line with international standards in the form and means of technological exchange，Enterprise innovation ability is becoming an important part of enterprise competitiveness。 With the development of the national economy，The improvement of peoples living standards，The trend of product diversification and personalization is further intensified，The speed of product renewal in the manufacturing industry will be greatly accelerated。cloudlet：“A good horse needs a good saddle”，That is, there is a device that can give a certain amount of pressure and speed
2015-05-31 Reading quantity 2941
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