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introduction： It is used to change the feed rate of the machine tool when cutting(See cutting parameters)Or change the surface to form a relative motion relationship between the tool and the workpiece in motion。The change of feed quantity is graded and graded。There are two kinds of progression series with progressive feed: arithmetic series and arithmetic series。The feed box uses an exchange gear﹑Slip gear﹑Ratchet mechanism﹑Keying mechanism﹑Buckling mechanism﹑Swing tower gear mechanism﹑Two-axis sliding common gear mechanism and three-axis sliding common gear mechanism, etc(See picture A mechanism for changing the amount of feed )Change the feed rate。 adopt
2015-04-23 Reading quantity 2825
introduction：This regulation applies to the model：9311and06-7888Б 1、Comply with general operating procedures for moulding machines and core machines。 2、On a no-load test run，The shock felling should be gradually increased，Jolt height to40~50Millimeter is appropriate，Or else，Can cause decylinder，Causing the piston ring to snap。 3、preflip，The plate must be locked securely；Rollover time，No one should stand near the front of the device，To avoid personal accidents。
2015-04-23 Reading quantity 2830
introduction： The manufacturing process of steel balls is a key factor in determining their service life。If there are defects in the surface or internal manufacturing of the steel ball，vallation、crack、Transgranular scheduling，Not only will it reduce the performance of the steel ball，It can even cause the ball to break。 Reasonable forging must be made in the production of steel balls、Casting and heat treatment processes。For example, high chromium cast iron balls，Vertical casting and rational use of external chills should be adopted，And strictly control the casting temperature and other measures，In this way, the steel ball can have a good solidification sequence and feeding conditions in the casting，And then you get a dense internal structure，And reduce the coarse grain phenomenon。The heat treatment process of steel ball determines the realization of its mechanical properties
2015-04-22 Reading quantity 1572
introduction：Forging process in which the top of a bar or wire is thickened at room temperature。Cold heading is mainly used to make bolts﹑nut﹑Iron nail﹑Parts like rivets and steel balls。The forging blank material may be copper﹑aluminum﹑Carbon steel﹑Alloy steel﹑Stainless steel and titanium alloy﹐The material utilization rate can be reached80～90％。Cold heading is usually carried out on a special cold heading machine﹐Ease of continuity﹑multistation﹑Automated production。The material can be cut sequentially on the cold heading machine﹑heading﹑Build up﹑shaping﹑chamfer﹑Thread rolling﹑Reducing and trimming processes。High production efficiency﹐reachable300a
2015-04-22 Reading quantity 2842
introduction：1、Co-injection molding(Core injection molding) The use of co-injection molding helps to observe unique structures in the parts。plastic“a”Part of the cavity is injected first，Then plastic“b”On the heels of“a”The injection enters the cavity and maintains the initial push flow pressure field。According to the size of the skin area and the core layer，Measured in the correct proportional relationship“a”and“b”The amount of material used，tractable1The inner core layer is“a”In appearance entirely“b”The parts of the package。In addition，In cosmetic applications，There is a small epidermis“a”，Place material on“b”Post-feed injection，So that the gate part of the skin can be completely closed。with
2015-04-22 Reading quantity 2867
introduction： Advantages of electric forklift development It is understood，The sales data of electric forklift trucks has been continuously improved every year，That keeps the market humming，It can also be seen that it is increasingly favored by the market。 Now the market for electric vehicles is getting better and better，Not only because it saves energy but because it solves a big problem in transportation。 And now theres an electric forklift，His appearance made the mechanized operation a further stage，It is beneficial in use
2015-04-22 Reading quantity 2870
introduction： Sheet metal refers to the ability to adapt to stamping processing。It is very important to study the stamping performance of sheet metal。In order to be able to use the most scientific and economical stamping process and process parameters to produce stamping parts，It is necessary to have a very clear understanding of the properties of the plate as the processing object，In this way, it is possible to make full use of the potential capacity of the plate in processing。On the other hand，In order to be able to rely on the shape and size characteristics of the stamping parts and the necessary forming process and other basic factors，correct、Reasonable selection of plates，There must also be a stamping performance of the sheet
2015-04-22 Reading quantity 1570
introduction：The key factors that can maximize the grinding performance of a grinding wheel are good shaping and sharpening（General trimming）Tools and skilled finishing techniques。In fact，An operator with high quality dressing tools and skilled skills in dressing grinding wheels，Can always maintain the grinding wheel with high grinding performance。Instead of just relying on buying so-called good grinding wheels。This is very important，Because the workshop can not be operated by everyone，Equipped with special grinding wheels。 Sharpening is the process of sharpening the grain of a superhard abrasive wheel。In the process，Remove the bond between the grains and dull grinding wheel grains，A grinding wheel with strong grinding properties
2015-04-22 Reading quantity 1498
introduction：Machine tools are used to process blanks or workpieces of metal or other materials，To obtain the desired geometry、Dimensional accuracy and surface quality of the machine。 The parts of mechanical products are usually machined by machine tools。A machine tool is a machine that makes machines，It is also a machine that can make the machine itself，This is the main feature that distinguishes machine tools from other machines，Therefore, the machine tool is also called the working mother machine or tool machine。 Machine tools mainly include metal cutting machine tools，It is mainly used for metal cutting；Woodworking machine tool，It is used for cutting wood；Special machining machine，physically、Chemical and other methods for special processing of the workpiece
2015-04-22 Reading quantity 2913
introduction：With the domestic car ownership continues to rise，The demand for the use of auto parts and automotive supplies is also increasing，However, large and small parts and supplies stores in Guangzhou are numerous and complex，The goods are of mixed quality，Many fake and shoddy products are mixed among them，Cause the owners loss，Serious cases can even lead to casualties。In order to let the owner have a certain understanding of the characteristics of the accessories and supplies of the various brands，It will be featured in the Owners section from this week“Smart Consumer”column，Introduce various types to car owner friends、The main auto brand accessories identification way。Hope to accompany the development of the column，Esteem goods
2015-04-22 Reading quantity 1562
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