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introduction：What are the maintenance methods of switching power supply 1、When servicing the switching power supply，First, use a multimeter to detect whether each power component is broken down and short-circuit，Such as power supply rectifier bridge pile、Switching tube，High frequency high power rectifier tube，Whether the high power resistance to suppress the surge current is burned out。Then check whether the port resistance of each output voltage is abnormal，These parts need to be replaced if they are damaged。 2、Step 1 complete，It doesnt work properly after the power is turned on，The power factor module is then tested(PFC)And pulse width modulation module(PWM)，Access relevant information，Know wellPFCandPWMModule Each function and the module must work properly。
2018-05-15 Reading quantity 208
introduction：1、ABS ABSAcrylonitrile-butadiene-Styrene copolymer，Is a high intensity、Good toughness、Easy to process and form thermoplastic polymer materials。 Basic attribute ABSThe strength of，Usually falls off the table，It cant be damaged。ABSIt also has better toughness，Its not easy to break when its bent。But in100℃At the temperature of，Product softens。 Print temperature ABSIt is an amorphous material after heating，Moderate liquidity，Print temperature is210～240℃，The temperature of the heating plate is80℃above。 printability ABSFairly easy to print。No matter what kind of extruder you use，It squeezes out the material smoothly，No need to worry about clogging or congealing。howeverABSThey shrink when they get cold，Prone to local shedding、Hanging and other problems。In addition，If the printed object is very tall，Sometimes the whole layer is peeled off。therefore，ABSPrinting can not be less heating plate。
2018-05-15 Reading quantity 178
introduction：Stainless steel waterproof bearings seal a sealing ring between the inner and outer rings on one or both sides of the bearing,The inner side of the sealing ring is shaped like a ring groove,The sealing ring groove wall near the bearing inner ring is covered with a spring hoop。Have a firm seal,Reliable waterproof、Dust prevention、Oil retention features。 Stainless steel waterproof bearing performance characteristics： 1、Excellent water resistance，Under high temperature stability，Steam and steaming conditions、Water shower can be used under water immersion； 2、Good oxidation resistance，Effective solution to common water dilution、indurate、Emulsification and whitening phenomena，Ensure underwater lubrication； 3、All imported raw materials and additives，Can adapt to continuous water flushing and pressure，Achieve the desired lubrication effect，Long service life。 Stainless steel waterproof bearing application range：High temperature bearings for steel casting equipment、Each heating furnace、Drying furnace conveyor bearings;P
2018-05-14 Reading quantity 314
introduction：1、Seal form：open（uncovered），Metal shield with dust cover（ ZZ ） ，Rubber seal ring（ 2RS ） 。 2、accuracy level： ABEC - 1 ， ABEC- 3 ， ABEC- 5 ， ABEC- 7 ， ABEC- 9 ，According to the number from small to large，The level of accuracy is getting higher and higher。 3、Rotational speed：We can offer great speed450,000Turn the high-speed micro bearing，These high speed bearings are mainly used in spindles，Dental drill mobile field。We are also for jewelry，plaything，Industrial robots and other industries to provide low-speed bearings。 4、retainer：Retainer is an important part of bearing，Usually, the miniature bearings are made of stainless steel retainers，But there are also many customers like nylon cage micro bearings。
2018-05-14 Reading quantity 180
introduction：one、Reduce maintenance；Try to reduce the number of maintenance of linear bearings in summer，Summer is a season of high temperatures，The accuracy of linear bearings will gradually decrease，If we go back into repair，Then the life of the linear bearing will also be reduced，And the loose gland will affect the alignment of the linear bearing，However, if necessary, the outer ring of the bearing is loosened with the bearing chamber，Bearings need to be replaced in time，If the bearing chamber is loosened due to wear, it is necessary to maintain the bearing chamber in time，To avoid more serious damage caused by heat； two、Time detection；Set up a time for indirect detection of linear bearings，This is the direct and simple way，Shutdown can reduce the heat generated by linear bearings during operation，The heat generated by operation is the main source of heat emitted by linear bearings and equipment in friction，A certain time of shutdown can more effectively extend the service life of bearings and equipment； three、Pay atte
2018-05-14 Reading quantity 135
introduction：Tapered roller bearings are usually of separate type，That is, a cone inner ring assembly composed of an inner ring with a roller and a cage assembly can be connected with a cone outer ring（Outer ring）Separate installation。Tapered roller bearings are widely used in automobiles、Rolling mill、mine、metallurgy、Plastic machinery and other industries。 Tapered roller bearings are in the process of installation of the secondary cause of the emergence of scars：Bearing working device、Inner ring emerges during assembly、The outer ring is skewed；Or perhaps it is an emergent rush load in the process of installation and assembly，Eventually the bearing emerges。 When installing tapered roller bearings, stop in accordance with the work specification，Will not form many achievements，Such as the form or method of the device is not appropriate，It will form the bearing raceway surface and the rolling surface of the bearing to form a linear wound。The device of deep groove ball bearing indirectly reflects the precision of bearing in us
2018-05-11 Reading quantity 338
introduction：For the difference between the milling machine index plate and the electric index plate，There are still part of the indexing plate users are not clear，below，Combine the milling machine index plate with the electric index plate and the milling machine index plate，Electric dividing plate product features： 1.The electric index plate is operated by a brushless motor, Can replace the traditional manual、Mechanical indexing dial。 2.The electric index plate is suitable for active milling on the milling machine、Multiple hooks、multihole、Arc groove and other processing。 3.Cooperate in active drilling on the drill press，Equal hole and non-equal hole machining， 4.Can cooperate to actively use machinery
2018-05-11 Reading quantity 144
introduction：Relate toEZOThe two major complex problems of imported micro-bearing maintenance technology are：When and how much oil should be changed。If the oil change is too little，The miniature bearings will be scrapped early；If the oil is changed too much，Miniature bearings can get into trouble or harm power coils and coils for a long time。
2018-05-11 Reading quantity 322
introduction：When the tow chain needs high speed or high frequency operation, the guide rail should be separated from each other in level as far as possible，To avoid overlapping each other，Electric wire、cable、Oil pipe、If there are many air pipes, it is recommended to separate them and use an isolation plate。 4、Inside width：Choose a thicker cable；Oil pipe、trachea、The sum of the outer diameters of the pipe, etc. shall be used as a reference for the inner width of the drag chain and leave at least 10% of the width space。 5、Bending radius：Select built-in cable；Oil pipe、trachea、Large bending radius of water pipe, etc., as the test value，Concurrent retention There is more than ten percent enough space。
2018-05-10 Reading quantity 255
introduction：Product accuracy requirements for combined needle roller bearings include the following aspects： 1、Dimensional tolerances and geometric accuracy as perJB/T8877。 2、Needle roller bearing diameter difference between2μm，Accuracy class isG2level（National standardGB309）。 3、The inner circle diameter of the bearing without inner ring meets the tolerance class before assemblyF6。 4、Bearing radial clearance matchGB/T4604the0Group specified value。 5、Special precision grade pressGB/T307.1。 6、For bearing clearance、Inscribed circle、Details of special requirements for accuracy levels should be contacted with the manufacturer。
2018-05-10 Reading quantity 266
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