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KOYObearing[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。]Although the quality and other aspects are better，But rolling 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
1）Set up the model，And tamp down the lower body。First fill in the appropriate amount of veil and back yarn for the first tamping，After tamping，Dredge the sand and place the two loose blocks exactly，Then fill in a small amount of veil，Tamp around the movable block，Then sand and tamp it down 2）Scrape off excess sand from lower box and turn over 3）Cut away the sand on the bottom parting surface that prevents drawing，Trim the parting surface，Scatter molding sand 4）Set up the upper sand box，（Have a positioning device），Put the straight gate and riser in the position required by the process 5）Fill the tamper with the right amount of veil、Back yarn，Secure the sprue and tamp it down for reinforcement，Then the first light and then heavy ramming up 6）
Advantages of vertical self-priming pump in corrosive liquid low conveyor General centrifugal pump when transporting liquid，When the liquid level is below，You need a pump to get the water out。To this end, a bottom valve needs to be installed at the pump inlet。Over time，The bottom valve is corroded or stuck，It needs to be replaced or repaired，So it is very inconvenient to use。Submersible pumps are generally used to transport clean water、River water，When it is used for acid and alkali corrosive liquid transportation, motor corrosion is easy to occur，Electric leakage phenomenon，Very unsafe。When the pump is clogged with garbage, it must be pulled up to clean it，Very inconvenient，So it is rarely used in practical applications。So people built a liquid pump to carry out low，
The type of machinery is different，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。]Conditions of use will vary，The performance requirements are not only the same，But generally speaking，One shaft has a bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the friction coefficient of load during mechanical transmission
Reducer equipment maintenance Reducer maintenance knowledge： Reducer is an important part of metallurgical equipment，It is widely used，Large consumption。Failure to repair the faulty reducer in time，It will seriously affect the production and damage the reducer，Its also uneconomical not to repair it。The most used in metallurgical enterprises is a variety of open-wire cylindrical gear reducer，The maintenance is described as follows： General principles of reducer maintenance： 1、 For large reducer must be formulated and strictly implemented reducer repair procedures。 2、 Check and repair regularly。
On many occasions，KOYOThe bore size of the bearing has been specified by the structure of the machine or device。Regardless of service life，Whether the safety factor and economy of static load meet the requirements，In final selectionKOYOBearing before remaining dimensions and structural form，They all have to go through dimensional calculations。The calculus includes willKOYOThe actual load of the bearing is compared with its load capacity。 KOYObearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the friction coefficient of load during mechanical transmission
For 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。]Long life，Can not meet the general installation and adjustment requirements，We should focus on the following measures： (1)Shift bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed in the process of mechanical transmission and reduces the friction coefficient of load
SelectINAbearing[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。]Type time，The following five factors should be considered： 1)Direction of load、Size and nature：Radial bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the friction coefficient of load during mechanical transmission
Abstract The design experience of exhaust tank in injection mold is introduced，And several feasible exhaust methods and die structure。 keyword：Injection moulding of exhaust tank 0introduction Insufficient filling often occurs in injection mold trial production。Compressed air burns、High internal stress inside the product、Surface flow lines and fusion lines and other phenomena。In addition to these phenomena, the injection molding process should be adjusted first，Also consider whether the mold gate is reasonable。When the two problems of injection molding process and gate are eliminated；Then the exhaust of the mold is the main problem，The main means to solve this problem is to set up the exhaust tank。
Tool name use Indexable face milling cutter Common form face milling cutter Suitable for milling large surfaces，For roughing at different depths、semi-finishing。 Indexable precision face milling cutter Suitable for applications with high surface quality requirements，For finishing milling
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