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introduction：dizhongheng Platform scale platform weigher For automotive scales、Weighing instruments in rail scales and vehicle-train hybrid scales。Static automotive scales and rail scales are divided into mechanical and electronic types，Dynamic automotive scales and rail scales are electronic only。figure[Electronic ground scale working principle diagram]It is the working principle of electronic ground scale。Force transducer（See force measuring instrument）Convert the mass into an electrical signal and send it to the measuring circuit，Display and record results or perform data processing after automatic zeroing。The ground scale is widely used in the weighing and measuring of raw materials entering the factory and finished products leaving the factory，Weighing essence
2015-04-05 Reading quantity 2827
introduction： Domestic production of machinery and equipment exported to the EU、AcquireCEAt certification time，We usually see this in the design of electrical control circuits“Safety level”The concept of。So how to distinguish the safety level of electrical control circuits？How are circuits designed to meet safety certification requirements？ First of all，Before designing a machine，A risk assessment must be carried out on the machine。From all sides、Each part，What are the risks of assessing this machine，Finalizing the machine（Or part of it）Danger level。According to European machine safety standardsEN 954-1，Danger dispatching
2015-04-05 Reading quantity 2913
introduction： The first step：Process design Surface adhesion assembly process，Especially for small pitch components，Constant monitoring of the process is required，And systematic review。Illustrate by example，stateside，Solder contact quality standard is based on IPC-A-620And national soldering standards ANSI / J-STD-001。After understanding these guidelines and specifications，Designers can develop products that meet the needs of industry standards。 Mass production design Mass production design includes all the processes for mass production、assemble、Testability and reliability，And is based on
2015-04-05 Reading quantity 2923
introduction： Material protection technology that inhibits or reduces the corrosion of metal structures by changing polarity or moving the anode polarization potential of the metal to a passive zone。From the two metal electrodes of the Gaffani battery﹐Corrosion always occurs at the anode。Cathodic protection is in moist soil or contains electrolytes(saltlike)The water liquid and other electrolyte﹐Use sacrificial anode(Such as zinc﹑al)Or inert anode of impressed current﹐The protected steel structure becomes the cathode in this artificial Gafani cell。In the same corrosive environment﹐The most active is the anode﹐The smaller is the cathode﹐For example in
2015-04-05 Reading quantity 2854
introduction：Planetary cycloidal pinwheel reducer is an application of planetary transmission principle，Use cycloidal for meshing mechanism，Its compact structure、Novel strip reducing machine。Can be widely used in chemical industry、ceramic、mine、hoisting、Transportation and other equipment。Its advantage：High efficiency、Long life、Smooth running、The tape reduction range is large，Single-stage reduction speed ratio1/9-1/87Seed velocity ratio，Double deceleration1/101-1/7569More than 20 speed ratios。As needed，More stages of deceleration can also be combined。 note:Planetary cycloidal pinwheel reducer according to user requirements,Adjustable speed motor matching、Brake motor、Explosion-proof machine、NormalYSeries motor。
2015-04-05 Reading quantity 2944
introduction： 1.Low carbon steel carburizing、Nitriding and carbonitriding Carburizing is a traditional surface chemical heat treatment process，Carburizing steel（Low carbon low alloy steel、Low carbon high alloy high temperature carburizing steel）The surface is hard and wear-resistant after carburizing and quenching、The heart is strong。Carburizing process development on the one hand is the improvement of carburizing medium，Such as adding additives to increase the infiltration rate，Intensive infiltration--The diffusion rate is increased by the alternating cycle process、Improve the structure of infiltration layer。 With the development of vacuum technology，Vacuum low pressure carburizing and plasma carburizing appeared。The low pressure acetylene carburizing process developed by Ipsen and other companies is in10mbarBelow the low pressure，Using acetylene as carburizing
2015-04-05 Reading quantity 1472
introduction：Method I： Off（turn off）FileàOptions->Load OptionsUnder the"Partial Loading "Options Open assembly SelectFile->Export->Part in"Part Specification"Select down"new" Select"Specify Part"，Specified input
2015-04-05 Reading quantity 2919
introduction： Shotcrete granulation dryer is the key equipment in the production of compound fertilizer，The equipment collects spray、prilling、Dry in one，Internal grading、Internal return、Internal crushing structure form，With advanced technology、Low cost、Large output、Compact structure and other characteristics，It is the preferred equipment for the production of compound fertilizer。 Our company has many years of production of various types of shotcrete granulation dryer history，A variety of models are the first in China，Rich in experience、Process maturity、Advanced technology，In-between countries
2015-04-05 Reading quantity 2791
introduction：A plug body with a through hole is used as a valve for opening and closing parts。The plug body rotates with the stem，To achieve the opening and closing action。Small unpacked plug valves are also known as“Cock”。The plug body of the plug valve is mostly a cone（There are also cylinders），The sealing pair is formed with the conical hole surface of the valve body。The plug valve is one of the earliest valves used，Simple structure、Quick switch、Low fluid resistance。Ordinary plug valves are sealed by direct contact between the machined metal plug body and the valve body，So the sealing is poor，Large opening and closing force，Easy to wear，Usually only used low(No higher than1mpa)And small caliber（Less than100millimeter）The occasion of。To expand the plug valve should
2015-04-05 Reading quantity 2779
introduction：LDPE（Chinese name：Low density high pressure polyethylene）： Sensory discrimination：Soft feel：White and transparent，But the transparency is mediocre.，There is always tape and printing。（note：Tape and typography are unavoidable，But be sure to control its content，Because these will affect the price in the market） Combustion identification：The burning flame is yellow and blue；Smoke-free combustion，Smells of paraffin，Melting dripping，Easy to draw。 EVA（Chinese name：polyb—Ethyl acetate）： Sensory discrimination：Soft surface；Tensile toughness is strongerLDPE，Feel sticky（But no glue on the surface）；White and transparent，High transparency，Feel and feelPVCmembrane
2015-04-04 Reading quantity 2876
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