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introduction：Abstract Combine network manufacturing technology and supply chain management model，Designed according to oil drilling tools、Give birth to、sell、Service characteristics，Proposed a supply chain based management(SCM)Oil drilling tool network manufacturing system。Comprehensively analyze the overall structure of the system、Function module、Information flow and the function and information model of each subsystem。Through the practical application of the experimental prototype system，The feasibility and effectiveness of this system are verified。 keyword:SCM Drilling tool Network manufacturing This paper combines the actual situation of oil field group company，Based on information technology，Introduction of network manufacturing、Supply chain management
2015-04-11 Reading quantity 2825
introduction： Processing of materials using the heating or radiation effects of electron beams。The surface heat treatment of the material can be performed by using the thermal effect of the electron beam﹑weld﹑etching﹑borehole﹑Smelting﹐Or sublimate the material directly。Electron beam exposure is a processing method that utilizes the radiation effect of the electron beam(See electron beam and ion beam microfabrication)。 As a heating tool﹐The electron beam is characterized by high power and high power density﹐Can transfer energy to the workpiece in an instant﹐The parameters and positions of the electron beam can be adjusted precisely and quickly
2015-04-11 Reading quantity 2804
introduction： According to the parts to be turned shown below，The material is...45Gauge steel，amongФ85The cylinder is not machined。The process to be carried out on the CNC lathe is：cuttingФ80mm andФ62mm excircle；R70mm Cambered surface、Cone surface、Tool relief groove、Thread and chamfer。It is required to analyze the process and process route，Write processor。 1.Part drawing process analysis The part surface consists of a cylinder、cone、cis-arc、Inverse arc and double thread surface composition。Many of them have strict requirements for dimensional accuracy and surface roughness；sphere
2015-04-11 Reading quantity 1519
introduction：Why does stainless steel rust? Why does stainless steel rust?When the stainless steel pipe surface appears brown rust spots（point）when，People were amazed：consider“Stainless steel does not rust，Rust is not stainless steel，Maybe theres something wrong with the steel”。In fact，This is a one-sided wrong view of the lack of understanding of stainless steel。Stainless steel will rust under certain conditions。 Stainless steel has the ability to resist atmospheric oxidation---That is, rust proof，It also has an acid content、alkali、Salt in the medium is corrosive ability-
2015-04-11 Reading quantity 1522
introduction： The use of electric forklift gear oil 1、Gear oil for heavy duty vehicles（GL-5）It is mainly used for hyperbolic gear transmission and transmission of various vehicle rear axle under heavy load or high-speed impact operation conditions。For cold areas75W；For cold area80W/90;North of the Yangtze River year-round85W/90；South of the Yangtze River all year round90or85W/90. 2、Electric forklift gear oil（GL-3）It is mainly used for electric forklifts equipped with spiral bevel gear drive。Used all year round north of the Wall80W
2015-04-11 Reading quantity 2856
introduction： 1．Rolling 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 loading characteristics of the ⑴ The contact load and stress vary when the rotating ring and the rolling body pass through each point of the bearing zone；The contact load and stress at each contact point are characterized by a pulsating cycle；Not loaded in non-bearing areas；
2015-04-11 Reading quantity 1543
introduction：This regulation applies to the model and the productivity of the model： machine type raw production The rate of CM-114 4Tons of/when C-182A 7-9meter3/when 4582-0 230-400kilogram/when A930-31 20-400kilogram/when 1、Comply with casting equipment general operating procedures。 2、Check belt（Or flat belt）The tightness and wear condition，If too tight or too loose，Or severely worn， The belt should be adjusted or replaced in time。 3、Check the wear of the protection plates on both sides，In case of severe wear，Should be replaced。 4、Block according to process requirements
2015-04-11 Reading quantity 2781
introduction：1．Several drawings of nuts ⑴First draw the hexagonal prism，Then cut with a small triangle rotation。 ⑵Draw the cylinder first，Then chamfer the bottom edges of the cylinder，Then cut it out with a hexagonal stretch。 2. Naming of 3D parts when modeling Part modeling time，The system automatically names the part at the beginning of its model tree，Generally speakingPart1,Part2…Equal default form。And at each turn on the part modeling，The default part names in the model tree may have the same。Because the parts will eventually be introduced into the assembly drawing，Parts with the same part name cannot be the same in the assembly environment
2015-04-11 Reading quantity 2890
introduction： Click“view”(View)>“Model setup”(Model Setup)>“Perspective drawing”(Perspective)。“Perspective drawing”(Perspective) Dialog box opens。 in“type”(Type) Under the，Select“roam”(Fly Through)。 In the graphics window，Middle click visual aim。Roaming is activated。 Do one of the following： Click the middle mouse button to move to the object。to
2015-04-11 Reading quantity 2801
introduction： Before we introduce a lot of articles on electromagnetic clutches，Today Im going to introduce you to disc brakes。 Disc brake is also called disc brake，As the name implies, it is named after its shape。Its hydraulically controlled，The main parts are the brake disc、Distributor pump、caliper、tubing。Brake discs are made of alloy steel and fixed to the wheels，Turn with the wheel。 Disc brakes have been widely used in cars，Nowadays most cars are used for all wheels，A few cars serve only as front wheel brakes，Fitted with drum brakes on the rear wheels，So that the car has higher braking time
2015-04-11 Reading quantity 2953
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