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introduction：Working principle FGThe working principle of the series dryer is to complete the drying of wet materials in two steps。The raw material is first dried by a mixture of secondary drying tail gas and supplementary hot gas，After the use of low temperature and high humidity exhaust out of the machine，The semi-finished product is dried by fresh hot air under secondary negative pressure，Dry finished product metering packaging，The used high temperature and low humidity exhaust gas is used for primary drying，Thus a good cycle drying process is completed，The added hot air volume can be adjusted as needed，The machine is therefore widely applicable，Its other airflow dry compared、20%-48%，Thermal efficiency80-88%。 Application pattern
2014-12-19 Reading quantity 2806
introduction： Current national standard directory（valve） Serial number Standard number Standard name Substitute standard number Bid acquisition situation 1 GB/T8464-1998 Water heating valve with internal thread connection GB8464-87 GB8465.1~.8-87 2 GB/T12220-1989 Universal valve mark JB106-78 MOD ISO5209-1977 3 GB/T12221-1989 Flanged metal valves Structural length JB97~98-75 JB
2014-12-19 Reading quantity 2825
introduction： Technical parameter Model numberGZQ Overall dimensions(mm) Fluidized bed size(mm)
2014-12-19 Reading quantity 2804
introduction：Cycloidal pin gear reducer principle/Cycloidal reducer structure principle The whole transmission device of planetary cycloidal pin gear reducer can be divided into three parts：Input part、Retarding section、Output part。 There is a misalignment in the input shaft180°The double eccentric sleeve，Two roller bearings are fitted on the eccentric sleeve[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
2014-12-19 Reading quantity 2840
introduction： 1．introduction High-speed cutting tool technology is one of the key technologies to realize high-speed machining。In high speed milling，The tool overhang, that is, the length from the tip of the tool to the extended end of the spindle, has a great influence on the machining process，And directly affect the tool wear。Traditionally believed，Increasing the overhang of the tool will inevitably lead to the reduction of the tool stiffness，Especially in the processing of hardened steel and other difficult materials with high hardness，Used to choose a small tool overhang。Clamp the handle as much as possible during tool installation，The rigidity of the tool can be improved，Vibration reduction，Make the cutting process more stable，Less tool wear，Thus making the mold deep
2014-12-19 Reading quantity 2780
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。]Proper lubrication of anti-friction bearings is essential for their successful operation。For ordinary or sleeve type bearings，in
2014-12-19 Reading quantity 1440
introduction：Traditional steelmaking process，It is to cast qualified molten steel into the ingot mold，Remove the ingot after cooling，Send to the machining shop for heating、cogging、Rolled steel。50The casting technology of ERA Steel has been greatly reformed，Continuous casting technology was adopted。The basic principle is：Molten steel is continuously cast in a water-cooled crystallizer，To form a billet after the continuous downward twitch，Red hot billet after cutting，Direct heat to the rolling plant，It is rolled into steel after being heated for a short time in a heating furnace。This new process has been continuously improved，It is now formed for steelmaking—One refining——Continuous casting——New process production route of hot feed rolling material，
2014-12-19 Reading quantity 2802
introduction：Price change formerly，The high price has been affecting the wide acceptance of usersPCD（Polycrystalline diamond）Knives are a major obstacle，But things have changed a lot。Industry estimate，In the last two or three years，PCDThe price of knives has gone down40~60。appearPCDTool price"dive"One of the reasons is that supply in the market exceeds demand。in20century90Early era，PCDThe development momentum of cutting tools began to exceed that of traditional cemented carbide tools，In the decade that followed，rightPCDThe market demand for cutting tools is constantly increasing。however，withPCDThe maturity of tool manufacturing technology，Its sales growth momentum opened
2014-12-19 Reading quantity 2807
introduction：gong'e quxian 共轭曲线 conjugate curves 两构件上用以实现给定运动规律的连续相切的一对曲线。曲线与尖点接触可看作为共轭曲线的特例。齿轮传动中一个齿轮推动另一个齿轮转动和凸轮机构中凸轮推动从动件按要求的规律运动，都是依靠共轭曲线来完成的。单就齿轮传动来说，通过做成齿廓的一对对共轭曲线可以得到满足要求传动比的转动(如圆柱齿轮传动)，或进行转动与移动间的运动转换（
2014-12-19 Reading quantity 2782
introduction：1．What kinds of high manganese steel？How is its performance？ The manganese content is about11％～18％The steel is called high manganese steel。Commonly used cast high manganese steelZMn13The chemical composition is：Mncontent11％～14％，ccontent1.0％～1.4％，Sicontent0.3％～1.0％，Pcontent<0.03％，Scontent<0.05％。 High manganese steel is a kind of wear-resistant steel，The high manganese steel treated with water toughening can obtain higher plasticity and impact toughness。Its called water toughening，You just heat the steel until1000℃～1100℃，Keep warm for a while，Carbonize steel
2014-12-19 Reading quantity 1445
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