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introduction：duanchui Forging hammer hammer Use the kinetic energy of free falling or forced motion of a weight such as a hammer to strike the blank，A forging machine that causes plastic deformation。The movement of the hammer follows the striking energy formula[0156-01]，Shizhong EFor strike energy，Is the mass of the falling part of the forging hammer,For strike speed。The greater the mass of the falling part of the forging hammer，The more powerful the blow。The specifications of forging hammer are divided into two representations: drop hammer and hammer：The mass of the falling part of the hammer（kilogram）expression；Hammer with striking power（Kilojoule (kJ)）expression。The falling part includes the hammer head、Hammer rod and piston, etc，General forging hammer
2015-06-03 Reading quantity 2886
introduction： 1）density Density is the simplest for petroleum and its products、The most commonly used indicator of physical properties，It refers to the mass of the substance contained in a unit volume at a specified temperature，The unit is：kg/m3 Because at different temperatures，The density will change，The density measured at high temperatures is less than that measured at low temperatures。For ease of comparison，The density of general oil products is often expressed by specifying the density at temperature。Our countryGBstipulate，At standard temperature（20℃）The density below is the standard，densityg/cm3。Density plays an important role in production storage and transportation，Product in process measurement、Its used in refinery process design。
2015-06-03 Reading quantity 1731
introduction： So thatIKObearing[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。]Give full play to and maintain its due performance for a long time，Regular maintenance must be done practically（Periodic inspection）。Pass proper regular inspections，To detect faults early，Prevent accidents before they happen，It is very important to improve productivity and save cost。
2015-06-03 Reading quantity 1547
introduction：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。]Purpose of lubrication： The lubrication purpose of rolling bearings is to reduce the internal friction and friction loss of bearings，anti-burning、Its lubricating effect is as follows。 ⑴.Reduce friction and wear。 The ring is formed in the bearing、The mutual contact part of the rolling element and the retainer，Anti-metal joint
2015-06-03 Reading quantity 1433
introduction： An important component used in certain conveyors to transmit traction and movement。The traction chain is fitted with a working member(strickle﹑lath﹑hopper﹑Slide frame and steps, etc)﹐Used to transport material or personnel on a conveyor line。The pitch of the traction chain is generally large﹐Low operating speed。Traction chain can be divided into ring type according to different structure﹑slice﹑Detachable and special traction chains。 Ring traction chain Made of welded chain links of round steel﹐There is usually a special open link every few standard links(figure1a Various types of traction chains )﹐For connection with working components。The ring chain is easy to manufacture
2015-06-03 Reading quantity 2865
introduction： 1、sensationallyNSKbearing[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。]Quality On saleNSKbearing[N
2015-06-03 Reading quantity 1537
introduction：Forging method in which metal billets pass through two relative rotating fan molds to produce plastic deformation to form workpieces。It is formed rolling（Longitudinal rolling）A special form of。Roll forging can be used to produce connecting rods、Twist bit、wrench、Rail spike、hoe、Picks and turbine blades。The roll forging process uses the rolling forming principle to deform the blank step by step，Compared with ordinary die forging，The equipment structure is relatively simple、Steady production、Low vibration and noise，Easy to automate、High production efficiency advantages。 Roll forging is divided into two types: billet roll forging and forming roll forging。Roll forging is the preparation of blanks of the desired shape and size for die forging；Forming roll forging can directly produce a match
2015-06-02 Reading quantity 2868
introduction：one Basic knowledge of grinding processing In recent years，Grinding machine processing has a great development，It has been widely used in machining industry，Grinding machine parts have high precision and fine surface roughness。As the precision of the machine is improved，The level of grinding technology in a country，Often reflects the level of national machinery manufacturing。Famous grinding machines made in our country are“MG1432AHigh precision universal cylindrical grinding machine，MG7132High precision surface grinding machine，MS1312High speed cylindrical grinding machine，S7450Large thread grinding machine，MK8532Type CNC CAM grinder, etc。The grinder can grind outside the circle，
2015-06-02 Reading quantity 2884
introduction： Parallel slotted 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。]The seat is usually made of a single piece of metal，Common aluminum，Use helical slit fragmentation to comply with deflection and transfer torque。They usually have good features and a price advantage，In many practical applications，It is the product of choice。single
2015-06-02 Reading quantity 1638
introduction：1、Oil bath lubrication Oil bath lubrication is the mostIKObearing[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。]Ordinary lubrication method，Low fit、Lubrication of medium speed bearings。Dip part of the inlet bearing in the groove，The lubricating oil is carried by a rotating outer spherical ball bearing part with seat，The oil level of the tank should then flow back slightly below the center of the lowest rolling element。
2015-06-02 Reading quantity 1674
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