Category: Manufacturing Technology knowledge

Introduction: Spiral wound gasket mainly includes metal wound gasket, graphite wound gasket, graphite metal wound gasket, metal graphite wound gasket, inner and outer ring wound gasket, metal asbestos wound gasket, metal tetrafluorocarbon wound gasket, etc. The spiral wound gasket is made of "V" shape (or "W" shape) metal belt and non-metal belt overlapping each other and continuously wound. The metal belt is fixed by spot welding at the beginning and end. Performance characteristics: 1. It is applicable to a wide range of working conditions. It can withstand high temperature, high pressure and adapt to the service conditions under ultra-low temperature…

Recently, Fitbit has indeed experienced a difficult time, and I think that if Fitbit wants to really understand the future of wearable devices and biometrics, this is a necessary process. This theory is not only applicable to Fitbit, but also to the whole wearable device industry. This is a game about waiting and development. You see, some people may have seen that the wearable device market seems to be saturated at present. Some companies have decided to launch, while others have just begun to step in. With the miniaturization of hardware, wearable devices and facilities are becoming more fashionable and…

Cost reduction is the eternal theme of enterprise management, but this issue is now very important and urgent, especially for China's manufacturing industry in the era of low profit. The more nervous, the less blind. What can't enterprises do in the process of reducing costs? According to relevant reports, if the manufacturing cost in the United States is set to 1, the manufacturing cost in China will reach 0.96, which is quite close to that in the United States. The manufacturing cost in some industries, such as the light textile industry, is even higher than that in the United States.…

The industrial door is a common facility for enterprises. It is suitable for large warehouses, logistics industry, medicine, food, factories and mines and other industries with high requirements for opening speed, thermal insulation, sound insulation, sealing and wind resistance. Especially where the door opening is large and it is inconvenient to install the ground door body. The operation of the industrial door mainly depends on the motor to drive the door body, so if the motor fails, the industrial door cannot operate. The following is a list of the reasons why some industrial door motors cannot rotate and their solutions:…

There are three common polishing methods: mechanical polishing, chemical polishing and electrochemical polishing, which have their own advantages and disadvantages. As for the specific choice, it is also necessary to comprehensively consider and select the appropriate polishing method according to the structure and size of stainless steel products and product performance requirements. 1. Mechanical stainless steel polishing. It has the advantages of good levelness and high brightness after processing. Its disadvantages are high labor intensity, serious pollution, and complex parts can not be processed, and its gloss is not consistent, the gloss retention time is not long, and it is…

1、 Selection of positioning datum In the process specification design, the correct selection of positioning datum has a vital impact on ensuring the processing requirements of parts and arranging the processing sequence reasonably. The positioning datum can be divided into fine datum and rough datum. The rough surface on the blank is used as the positioning datum. This positioning datum is called rough datum. The machined surface is used as a positioning reference, and this positioning reference becomes a fine reference. When selecting the positioning datum, the precise datum is often selected first according to the machining requirements of the…

Classification of Siemens PLC: Siemens PLC in Germany is widely used in China, such as in metallurgy, chemical industry, printing production line and other fields. Siemens PLC products include logo, S7-200, s7-1200, S7-300, S7-400, etc. Siemens S7 Series PLC is small in size, fast in speed, standardized, has network communication capability, stronger in function and high in reliability. S7 Series PLC products can be divided into micro PLC (such as S7-200), PLC with small-scale performance requirements (such as S7-300) and PLC with medium and high performance requirements (such as S7-400). Working principle of Siemens PLC programming: after the PLC is…

Hexagon nut is one of our common nuts. It is used with bolts and screws to connect and fasten mechanical parts. It has internal threads and is used with screws to transmit motion or power. Among them, type 1 hex nuts are most widely used, and grade C nuts are used on machines, equipment or structures with rough surfaces and low precision requirements; Grade A and B nuts are used on machines, equipment or structures with relatively smooth surfaces and high requirements for accuracy. The thickness m of type 2 hex nut is relatively thick, and it is often used…

In recent years, there are many testing techniques and methods related to particle size distribution, and the laser particle size analysis method is generally accepted by people because of its characteristics of fast measurement speed, high accuracy and good accuracy. As the name implies, since the laser particle sizer is a particle sizer, it is of course used to measure particles. It takes advantage of the monochromatic and extremely strong directivity of the laser. The laser particle sizer is recognized as the most advanced and fastest particle testing instrument in the world. Measuring principle of laser particle size analyzer Laser…

With the expansion of the display area of the full screen mobile phone, the distance between the right angle of the display area and the rounded corner of the mobile phone edge is also narrowed, which is easy to cause damage. Therefore, the special-shaped cutting technology is particularly important under the full screen. And profiled cutting also makes CNC technology play a more important role. As a professional CNC R & D, production and sales manufacturer, Jiujiu Seiko has a number of CNC research patents and is committed to engraving CAD / CAM technology. It has made great achievements in…