introduction: Micro spray dryer: GPW120-ⅡThe spray volume of the micro spray dryer is only300-600mL/h,Two fluid atomizing nozzles are adopted。Small size,Can be placed on a laboratory workbench surface,Exclusively for university、Academy of science、The scientific research institutions of pharmaceutical factories are engaged in the research and development of traditional Chinese medicine preparations。 Process flow chart: ①Charge pump②nozzle&nb
2015-06-23 Reading quantity 2908
introduction:Stainless steel outer spherical 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 inner and outer diameter dimensions are manufactured to standard tolerances,Bearing inner ring and shaft,The tightness of the outer ring and the seat hole can only be achieved by controlling the tolerance of the journal and the tolerance of the seat hole。The inner ring of the stainless steel spherical bearing is matched with the shaft by the base hole system,Stainless steel outer sphere
2015-06-23 Reading quantity 1609
introduction:According to the Incremental Motion Control Association,The closed-loop control of stepper motor can be used in various ways,This includes step counting(Or step check)、Sensorless back electromotive force detection and full servo control with sensor feedback。 Step check is the simplest position control,It uses a low-resolution photoelectric encoder to count the number of moving steps。A simple circuit is used to compare the number of instructed steps to the number of measured steps,To verify that the stepper motor has moved to the specified position。 Back electromotive force is a sensorless detection method,It uses the back electromotive force of the stepper motor(emf)Signals to measure and control speed。Motion according to increment
2015-06-22 Reading quantity 2945
introduction:rubberkeyThe production process of a description: Stock preparation→Rubber pressing→Spray paint→stamping→Laser carving→Finished product packaging The detailed production of each process will be introduced first 1.Stock preparation:Basically, you take the raw rubber blocks youre going to make and some ingredients(Its mainly toner and some other ingredients,)well-blended,And then squeeze it into a plate,Then cut into the desired strips of rubber,To be used for back-channel suppression. 2.Rubber pressing:This is the main process,accidentally
2015-06-22 Reading quantity 2877
introduction:Under certain operating conditions,IKObearing[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。]It can obtain a longer life than the traditional calculation,Especially in the case of light loads。These special operating conditions are,When rolling surface(Tracks and rolling parts)A lubricating film effectively separates and limits the surface damage that contaminants can cause。FACTS
2015-06-22 Reading quantity 1657
introduction: ⒈Program control of injection speed The program control of injection speed is to divide the injection stroke of the screw into3~4stage,The appropriate injection rate is used in each stage。Such as:Slow down the injection as the molten plastic begins to pass through the gate,High-speed injection is used in the mold filling process,Slow down at the end of the filling。Take this approach,Can prevent spillage,Eliminate the flow mark and reduce the residual stress of the product。 The flow rate is stable at low speed,Product size is relatively stable,Less fluctuation,The product has low internal stress,The internal and external stress of the product tends to be consistent(
2015-06-22 Reading quantity 2957
introduction:INAbearing[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 ferrule and the rolling body,Repeatedly subjected to high contact pressure on one side,One side makes rolling contact accompanied by sliding。retainer,One side with the ferrule and both sides of the rolling body,Or one of them sliding contact,One side withstands tension and compression。therefore,Ring for CAM bearing,Rolling element and protection
2015-06-22 Reading quantity 1565
introduction:(1)Conducive to product identification。By marking the product with a special logo、Brand names and logo patterns, etc,It can make the product stand out from the competition,Increase brand awareness。 (2)Need for product tracking records。The lot number of the product、classes、The serial number or production date is printed directly on the product,So that every product has good traceability,Greatly facilitate the quality management of enterprises and regional management of product sales。 (3)Prevention of counterfeiting。Manufacturers can often prevent this by labeling their products、Suppression of counterfeiting,
2015-06-22 Reading quantity 2872
introduction:(one).Types of annealing 1. Full annealing and isothermal annealing Full annealing followed by weight crystallization annealing,Generally referred to as annealing,This annealing is mainly used for the casting of various carbon steel and alloy steel with hypoeutectoid composition,Forgings and hot rolled profiles,It is also sometimes used for welding structures。It is often used as the final heat treatment of some unimportant workpieces,Or as a pre-heat treatment for certain workpieces。 2. Spheroidizing annealing Spheroidizing annealing is mainly used for over-eutectoid carbon steel and alloy tool steel(Such as making cutting tools,Measuring tool,The type of steel used in the mold)。Its main purpose is to reduce hardness,Improve machinability
2015-06-22 Reading quantity 1635
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。]From within、Outer race、Rolling element(ball、Roller or needle roller)And retainer consists of four parts,Except for the retainer,The rest is made up of bearing steel。When the bearing is working,in-bearing、Outer race,Bearing roller
2015-06-22 Reading quantity 1610