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introduction：Milling machine with portal frame and long horizontal bed。The machining accuracy and productivity of gantry milling machine are high﹐Plane and bevel surfaces for machining large workpieces in batch and mass production。CNC planer milling machine can also process space surfaces and some special parts。Gantry milling machine(See picture Gantry milling machine diagram )The portal frame is composed of columns and top beams。The beam can be guided along two columns(See machine guide)lift。On the beam1～2A milling head with a vertical spindle﹐Lateral movement can be made along the beam guide rail。A milling head with a horizontal spindle can also be mounted on each column﹐It can be lifted along the column guide rail。These milling heads are identical
2015-02-03 Reading quantity 2792
introduction：Mettler-The application of Toledo densitometer and refractometer in beverage industry With the development of beverage industry production，Beverage science research is deepening day by day，In addition, the rapid progress of instrument development technology，xu Many advanced methods and technologies, especially the application of automated test instruments，For beverage production、Scientific research provides speed and accuracy The analysis of test data，This speeds up the analysis process，Reduced human error，The analysis accuracy is improved。 At present，Refractometers and densitometers are mainly used as control instruments for sugar content in beverages in the beverage industry。 Beverage production，It is usually made from raw syrup
2015-02-03 Reading quantity 2912
introduction：Plastic injection molds are basically divided into static molds and dynamic molds。 The one with gate cover on one side of the injection head of the injection molding machine is a static die，Static molds usually have gate covers、Backup plate、Template composition，Simple mold（Especially die without core）You can also not use the board，Just use a thicker template。Gate covers are generally standard parts，Except for special reasons，Cancellation not recommended。The use of gate covers is conducive to mold installation、Easy to replace，No need to polish yourself。Some special mold gate sleeves can be drilled out or cut with taper line。Part of the die must be static when the die is removed，We need to add a dead die ejector。The structure of a moving die is generally a moving die
2015-02-03 Reading quantity 2791
introduction： compre sion moldingCompression forming flash moldOverflow mold plsitive moldExtrusion die split moldSplit die cavitytype-control Master die coreDie core Male die tapertaper leather cloakImitation leather shiverornamentation flow markRill mark welding markSolder mark post scre
2015-02-03 Reading quantity 2821
introduction：Basic introduction The reducer is an independent closed transmission device between the prime mover and the working machine，Used to reduce speed and increase torque，To meet the needs of the job，In some cases also used to speed up，speeder。 The selection of the reducer should be based on the selection conditions of the working machine，Technical parameter，The performance of the engine，Economic and other factors，Compare different types、Variety reducer dimensions，Transmission efficiency，Carrying capacity，Quality，Price etc，Select the most suitable reducer。 The reducer is a relatively precise machine，The purpose of using it is to reduce the speed，Increase torque。 Edit the basic structure of this paragraph
2015-02-03 Reading quantity 2817
introduction：air permeability test Air permeability test austenitic steel Wastin Steel brinell hardness Bunnell hardness brinell hardness test Brinell hardness test charpy impact test Charpy impact test conical cup test Conical cup test cup flow test Cup model flow test dart drop impact
2015-02-03 Reading quantity 2914
introduction： POM polyformaldehyde Chemical and physical properties POMIt is a tough and elastic material，It has good creep resistance even at low temperatures、Geometric stability and impact resistance。POMThere are both homopolymer materials and copolymer materials。The homopolymer material has good tensile strength、Fatigue strength，But not easy to process。Copolymer materials have good thermal stability、Chemically stable and easy to process。Whether homopolymer material or copolymer material，Are crystalline materials and do not absorb moisture easily。 POMThe high degree of crystallization results in it having quite
2015-02-03 Reading quantity 2876
introduction：Domestic reducer industry manufacturers also coexist in various forms，Such as foreign-funded enterprises、Sino-foreign joint venture、State-owned enterprise、Joint-stock enterprises and individual enterprises，The scale has reached billions of yuan of annual output value，As small as a few million dollars。Foreign companies account for about a quarter of those sales。 In the manufacturing of reducer，At present, the number of domestic manufacturers is large，Such as Chongqing gearbox Co., LTD，Hangzhou forward gear box Co., LTD，Nanjing high precision gear Co., LTD，Xi an Heavy Machinery Research Institute，Luoyang heavy gear box Co., LTD，Jingzhou whale transmission machinery Co., Ltd. and other domestic mainstream brands，countries
2015-02-03 Reading quantity 2797
introduction：A detachable connection consisting of two elastic rings fitted with internal and external cones squeezed between the shaft and the hole（See picture[The structure of elastic ring connection]）。The cone Angle of the elastic ring is generally12.5°～17°。Tighten the nut to tighten the inner and outer rings，shaft、Radial pressure is generated between the hole and the ring，When working, torque and axial force are transmitted by the accompanying friction。Elastic rings are generally used、Made of high carbon or chromium steel，Required surface finish and good fit。When the centering accuracy of the connection is required to be very high，Use the whole ring。High bearing capacity of elastic ring connection,No source of stress concentration，Good concentration，Easy to assemble and disassemble,Theres enough tightness，Over duty
2015-02-03 Reading quantity 2803
introduction：Background information Chinas largest steel mill——Anshan Iron and Steel Company in Liaoning province，To optimize the plant“Overall equipment efficiency”（OEE），A series of upgrades have been introduced。As a fully integrated plant for the production of flat plates and long strips of steel，Angangs upgrades include the construction of a single-channel steel plate casting facility、A four-way billet continuous casting facility、An ingot refining furnace、In addition, three existing basic oxygen furnaces with a production capacity of 90 tons in Anshan No. 1 Rolling Mill are also available（BOF）The vacuum exhaust system。 The new sheet steel casting facility has a designed annual production capacity of one million tons，And billet casting
2015-02-03 Reading quantity 2794
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