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introduction：Use the disc as the opening and closing member and move along the axis of the seat，To achieve the opening and closing action of the valve。The globe valve is mainly used to cut off fluid，It can also be used to adjust the flow rate in occasions where the adjustment performance is not required。The globe valve is a kind of valve commonly used in pipelines。Common globe valve body channels are straight through、Straight flow and right Angle3Kind of（figure1[Type of stop valve]）。Straight through stop valve(figure2[Straight through globe valve body channel])The fluid resistance is larger,Because the valve body shape is similar to the sphere，So it is commonly called ball valve。To reduce fluid resistance,Then the direct flow appeared（Ytype）Stop valves and right-angle stop valves are mostly used in straight flow
2015-06-16 Reading quantity 2869
introduction：A moving ring filter is used as the filter medium，And a continuous filter with negative pressure as the filter driving force。figure1 [Belt vacuum filter]The structure and working principle of belt vacuum filter。The horizontal filter belt is driven by a roller，Vacuum trays and pipes are installed under the filter belt，To suck out filtrate and lotion。Add a suspension at one end of the filter，First, the liquid is filtered to form a filter residue，The filter residue is then washed and dehydrated，Unload the slag at the other end of the filter，The lower part of the filter is cleaned and regenerated upon return。Before vacuum filtration，Sometimes a gravity settling zone is added，The coarser particles settle on the filter surface first，elixir。Some filters are pressurized at the discharge end
2015-06-16 Reading quantity 2893
introduction：In industrial production，Metal thermal cutting generally has gas cutting、Plasma cutting、Laser cutting。Plasma cutting is compared with gas cutting，It has a wider cutting range、Higher efficiency。The fine plasma cutting technology is close to the quality of laser cutting in terms of the cutting surface quality of materials，But the cost is much lower than laser cutting。therefore，Plasma cutting20century50Developed in the United States in the mid-2000s，Develop rapidly。With the rapid development of computer and digital control technology，CNC cutting has also flourished，And improve the machining accuracy。Save materials、The improvement of labor productivity has shown great advantages。
2015-06-16 Reading quantity 2880
introduction：With regard toMAX370ALine number machine question answering pigmentation、hem、The print is incomplete Possible causes: 1．Ambient temperature effect。2．The back axis of the ribbon is too loose。3．The casing is too soft or curly。 solution: 1．Keep the ambient temperature at20Degree or so。2．Change or adjust the ribbon。3．Casing replacement。 Feed gear broken tooth。 Possible cause:Casing is blocked or subjected to external force。 solution:Be careful not to block the pipe，Handle the pipe carefully after plugging。 LCDNo display May produce
2015-06-16 Reading quantity 2874
introduction：Advantages and disadvantages of electric forklift Although battery forklifts have many advantages，But this forklift is generally suitable for indoor leveling、Work on solid ground，And the air cleanliness requirements are relatively high，Some light industries with odor and dust pollution are not suitable for use；At the same time, the maintenance of the electronic control system is more complicated，A charging room and charging equipment are required，Backup batteries are also needed when working in shifts；Due to the limitation of battery capacity，General motor power is relatively small，Climbing ability is relatively poor。As each battery generally works about8It needs to be recharged after hours，Replacement of backup batteries has also been reduced
2015-06-16 Reading quantity 2818
introduction：Improved precision imported bearings[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]The accuracy of In use of precision imported bearings[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]In the process，Precision is a very important issue。So how to improve
2015-06-16 Reading quantity 1510
introduction： Introduction to the fork frame of electric forklift Since the mounting size between the hook and the fork has been standardized，All fittings have the same hook as the cargo fork。Therefore, the plate fork can be easily replaced。To enable the fork or accessories to be mounted or removed from the fork holder，When the fork rack is equipped with a shelf，Use the gap in the middle of the lower stop plate to install the fork。To position the fork or accessories on the fork rack and adjust the fork spacing，A number of symmetrical positioning holes and slots on the upper baffle can be used，It is positioned by a spring-loaded dowel at the upper end of the fork。 When the cargo fork is
2015-06-16 Reading quantity 2962
introduction： Both hot rolling and cold rolling are processes in which steel or steel plates are formed，They have a great influence on the structure and properties of steel，Steel rolling is mainly based on hot rolling，Cold rolling is only used for the production of small shapes and sheets。 one.Hot rolling advantage:Can destroy the casting structure of the ingot，Refine the grain of steel，And eliminate the defects of microstructure，So that the steel structure is dense，The mechanical properties are improved。This improvement is mainly reflected in the rolling direction，So that the steel is no longer isotropic to a certain extent；Bubbles formed during pouring、Cracking and loosening，It can also be welded under high temperature and pressure。 shortcoming
2015-06-16 Reading quantity 1624
introduction：NUMThe companys CNC system is open to its software、nimble、Known for high speed and high precision，In the application field of CNC gear machine tools，NUMA system was developed specifically for gear machining，And with its open man-machine interface and other functions welcomed by the majority of users in the worlds gear machine tool industry, the sales of its CNC system ranks first。 NUMNumerical control system in this aspect of the main functions and characteristics： 1 NUM1060HGNumerical control system This system is specially developed for CNC gear hobbing machine and CNC gear grinding machine，Owned by all3block32positionCPUUsed for data operations and numbers
2015-06-15 Reading quantity 2871
introduction：When welding with a laser beam as a heat source,The laser will emit high power density(10(～10(watts／centimetre()The laser beam is condensed into a focused beam,Used to bombard the surface of the workpiece，Generate heat energy，Melting work(See picture[Laser welding diagram])A laser beam is a coherent beam with a single frequency，There is no divergence in emission，A lens can be used to converge to a focal point of a certain size（Diameter is... 0.076～0.8millimeter）A small focus laser beam can be used for welding、Cut and punch；Large focus laser beam can be used for heat treatment of material surface。The direction of the laser beam can be arbitrarily changed by the reflector，So it can weld generally
2015-06-15 Reading quantity 2861
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