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introduction：A mechanism in which the rotating or reciprocating motion of the CAM drives the follower to make a specified reciprocating movement or swing。The CAM has a curved profile or groove﹐There are disc cams﹑Cylindrical CAM(figure1 Two typical CAM mechanisms )And move the CAM and so on﹐The concave curve of cylindrical CAM is a space curve﹐Therefore, it belongs to spatial CAM。The follower makes point contact or line contact with the CAM﹐Roller follower﹑Flat bottom follower and tip follower, etc。The tip follower can maintain contact with any complex CAM profile﹐Can achieve arbitrary movement﹐But the tip wears out easily﹐Suitable for low speed mechanism with low transmission force。To keep the follower and CAM at all times
2015-03-22 Reading quantity 2768
introduction： How to clean electric forklift parts 1、Cleaning of non-metal parts of electric forklift：Rubber parts（Brake cup、apron），Clean with alcohol or brake fluid；No gasoline、Alkali solution and other cleaning solution cleaning，To prevent parts from swelling and deterioration。Brake disc and clutch friction disc，Scrub with gasoline and allow to dry。Leather part（Such as leather oil seal），Generally wipe with a dry cloth Ready to use。 2、Alkali solution to remove electric forklift oil。An emulsifier is added to the alkali solution（Liquid soap）。There are
2015-03-22 Reading quantity 2797
introduction：1、Up. die The upper die is the upper half of the whole pair of dies，That is, the part of the die mounted on the slider of the press。 2、Upper die holder The upper die seat is the top plate-like part of the upper die，The workpiece is pressed against the press slide，And fixed by the die handle or directly with the press slider。 3、Under the die The lower die is the lower half of the whole pair of dies，That is, the die part installed on the press table surface。 4、Die holder The lower die seat is a plate-like part on the bottom surface of the lower die，When working, it is directly fixed on the press work surface or the backing plate。 5、The blade wall The edge wall is the side wall of the cutting edge of the punching die hole
2015-03-22 Reading quantity 2921
introduction： FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]Corrosion is mainly divided into metal corrosion and human hand sweat，Metal corrosion accounts for the vast majority，In many cases, its unavoidable。And sweaty hands can also cause itFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]corrosion，Mostly sweat on its surface when it comes into contact
2015-03-22 Reading quantity 1526
introduction： For a long time，The main problem that troubles the majority of mold designers is the long mold development and design cycle，Especially for some special complex sheet metal forming parts，It even restricts the progress of the entire product development，And the sheet material takes shapeCAEThe advent of technology and analytical software，Effectively shorten the mold design cycle，Greatly reduce mold test time，Help enterprises improve product quality，Reduce production costs，Fundamentally improve the market competitiveness of enterprises。 one、 introduction Computer aided design technology with its powerful impact，Influencing and changing every aspect of industry，It even affects the community
2015-03-22 Reading quantity 2787
introduction： Causes of bipolar burns： 1.Some blind spot on the machine，The individual ball can not get the normal grinding surface to become a large ball，The big ball only orbits in the groove，Non-rotation by grinding wheel two groove edge friction extrusion； 2.A groove is a grinding wheel block、Blockage of material and foreign matter，Not detected and eliminated in time，For a long time，The gully will become shallow，When the ball re-enters the groove，Bipolar burns may occur。
2015-03-22 Reading quantity 1445
introduction：Mercury is one of the toxic elements，If there is excessive mercury in food, it is very harmful to human body，Cause disease，Some even die.，So on foodHgThe determination of great importance，Never exceed the standard，So as not to bring risks to human health。measureHgThere are many ways，Such as a special mercury meter，Chemical method，Atomic fluorescence，Cold atomic absorption and hydrogenation occur—Cold atomic absorption method, etc，Compare various methods，We think hydride occurs—Cold atomic absorption method is better，With high sensitivity
2015-03-22 Reading quantity 2880
introduction： The liquid or semi-liquid metal is filled in the mold at high speed under high pressure，Casting method in which a casting is solidified under pressure。The pressure used is 4～500mpa,The metal filling speed is0.5～120meter／seconds。1838AmericanG.Bruce was the first to produce newspaper type by pressure casting，The following year a pressure casting patent was issued。19century60After ten years，Pressure casting method has been greatly developed，Not only can tin lead alloy die casting parts be produced、Zinc alloy die casting，It can also produce aluminum alloys、Copper alloy and magnesium alloy die casting。20century30After that, the pressure casting method of steel was tested
2015-03-22 Reading quantity 2779
introduction：Abstract：In order to improve the surface treatment quality of large volume integrated capacitor housing，Reduce labor intensity，Improve the working environment，Where space is limited，The relevant experiments of environmental protection brush coating phosphating powder were carried out，The film layer with ideal effect of removing oil and rust was obtained，The film has good compatibility with insulating oil，Good corrosion resistance under natural ventilation，The adhesion with the paint film reaches one level。 keyword：Environmentally friendly brush coated phosphating capacitor housing applications1introduction The housing of the integrated capacitor is large，Due to the limited working space，The existing phosphating production line can not meet its phosphating needs，Its sanded by hand
2015-03-22 Reading quantity 2780
introduction：Spraying is a surface strengthening technique，It has always been a key promotion of new technology projects in our country。It uses electric arc、Plasma arc、A heat source in the form of gas and oxygen，Heat a metal or nonmetallic material to a molten or semi-molten state，Under the action of high-speed air flow, it is atomized into fine droplets or high-temperature particles，It is sprayed onto the surface of the treated workpiece at a high flight speed，Form a firm covering layer，So that the workpiece surface to obtain different hardness、wear-resistant、rotproofness、heat-resisting、antioxidant、Thermal insulation、insulation、conduction、seal、disinfection、Protection against microwave radiation and other special physical and chemical properties。It can be repaired during equipment maintenance
2015-03-22 Reading quantity 2778
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