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introduction： 91 GB/T 12215-1990 Bauxite sand for investment casting、powder Bauxite sand and flour for investment casting 92 GB/T 12216-1990 Fat binder for casting The residue from distillation of synthetic fatty acids as binder for foundry 93 GB/T 123
2015-04-04 Reading quantity 2877
introduction：A detachable connection that uses a pin to unite the connected parts（See picture[Conical pin connections and various pins]），Small loads can be transferred，Sometimes it is also used as a safety part for overload cutting。Another use of the pin is to fix the mutual position of two parts，As an important auxiliary part in combined processing and assembly。Marketing standardization,Many types。Commonly used are:Round pin、Taper pin、Slot pin and cotter pin, etc。The cylindrical pin is fixed in the hinged pin hole with a small interference，In case of multiple assembly and disassembly, loss of coupling fastening and precise positioning taper pin band1∶50Taper of，self-latching，It is fixed in the hinged pin holes by coning extrusion，Can be installed and disassembled multiple times。Grooved pin
2015-04-04 Reading quantity 2788
introduction：sugar-freeSODBeverage process flow embellishSOD───┓ Aspartame│ A-Ksugar┢→Dissolve in sterile water proportionally and mix well in a mixing tank→sterilize→filling→seal→sterilize→cooling→inspect→Finished product Lemon essence──┙
2015-04-04 Reading quantity 2784
introduction：The first1article Formwork support shall not be used for decay、Twist crack、The splitting material。The top stay should be vertical，The bottom is flat and firm，And add bedding wood。The wedge should be nailed securely，Use a horizontal tie rod and scissors to hold tight。 The first2article The use of line frame support should be strictly checked，Found to be severely deformed、Loose bolts should be repaired in time。 The first3article The mold should be carried out according to the procedure，Template is not fixed before，Do not proceed to the next process。Do not use the pull rod、Brace up and down。 The first4article Set up4Column formwork above meters，All sides must be secured，Set up a workbench during operation，Insufficient4metric，Can be operated with a horse stool。 The first5article Set up
2015-04-04 Reading quantity 2875
introduction： The gear of the hard gear reducer is made of high strength and low carbon alloy steel by carburizing and quenching，High hardness of tooth surface，All gears adopt CNC gear grinding technology，High precision，Good contact，High transmission efficiency，Smooth running，Low noise；Small size、Light weight、Long service life、High carrying capacity；Easy to disassemble，Easy to install。 1、Distance between centers、Height of center、The transmission ratio adopts the priority number of the priority number system。 2、Gear parameter、The structure is optimized by computer。 3、Gear made of high quality high strength low carbon alloy steel by carburizing quenching grinding teeth。High hardness of tooth surface，Gear accuracy up to international standards6level。 4、drive
2015-04-04 Reading quantity 2872
introduction：[principle] The clean air is heated and enters the drying tower，Use two fluids in the tower hot air（Or trifluid）The nozzle atomizes all kinds of liquid into tiny droplets，Fast heat exchange with hot air，Evaporates the water from the liquid material（Or solvent），And with hot air discharge，A powdered product is obtained。 [peculiarity] Especially for viscosity、paste、Paste type material works well，No other device can replace it。 Experimental variety、Low temperature drying is widely used。 Simple nozzle structure，Easy maintenance，Low operating cost。 [Process flow]
2015-04-04 Reading quantity 2777
introduction：The reducer is in long-term operation，Wear and tear、Leakage and other faults，The main ones are： 1、Reducer 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。]Chamber wear，It also includes a housing bearing box、Housing bore bearing chamber、Wear of the transmission bearing chamber Reducer is one of the main equipment of the enterprise，During operation
2015-04-04 Reading quantity 2883
introduction：NSKbearing[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。]（Especially rolling bearings）There are two kinds of structures: strip cage and no cage。Among them, large bearings are generally required to withstand larger ones
2015-04-04 Reading quantity 1424
introduction：British Pipe Thread (Wyeth pipe thread) -- cylinder (BSPP/BSPF) Thread designation Basic size Major diameter mm d=D Screw pitch mm p Teeth per inch tpi Pitch diameter mm d2=D2
2015-04-04 Reading quantity 2780
introduction：Combination 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。]Precision parts，Therefore, it requires considerable caution when using，The change is the use of high-performance bearings，If used improperly，Nor can it achieve the expected performance effect，And easy to cause bearing damage。 There is no normal lubrication bearing lubrication effect Lubricate the rolling bearing
2015-04-04 Reading quantity 1548
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