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Vibration and shock sensor pedestal strain sensitivity detection device has been tested and accepted
[ Instrument Network Instrument Development ] Recently, the former Fujian Provincial Bureau of Metrology and Technology, the former Fujian Provincial Bureau of Quality and Technical Supervision Science and Technology Project "Research on the vibration and impact sensor pedestal strain sensitivity detection device" successfully passed the acceptance.
Acceptance site one
Acceptance site two
Acceptance site three
The acceptance expert group consisting of five experts including China Metrology Institute, Hangzhou Aihua Instrument Co., Ltd., and the Fifth Institute of Electronics of the Ministry of Industry and Information Technology unanimously stated that the study of susceptor strain sensitivity is almost blank at home and abroad. Good research prospects, I hope that the project team will strengthen follow-up research and make full and solid preparations, laying the foundation for the revision of GB/T 13823.6-1992 "Standard strain sensitivity test for vibration and impact sensor calibration method" and strive for Modify the ISO international standards in related fields.
A vibration sensor is a sensor for detecting an impact force or an acceleration. A piezoelectric device that generates a charge by applying a stress is generally used, and a sensor that can be detected by other materials and methods is also used.
Vibration testing has a very important position in the field of modern engineering, and it has received widespread attention. Many departments and units are conducting practical exploration and research, and new testing methods and methods are emerging. This is because vibration is widely existed in nature and engineering. Phenomenon, it is inseparable from the vibration test to use it for the benefit of mankind or to reduce its harm.
The vibration and impact sensor base strain sensitivity automatic test device developed by the project uses electromagnetic excitation technology to produce a controllable steady-state sinusoidal base strain in the range of (1~6) Hz, which can be the product of domestic mainstream sensor manufacturers. Provide technical guidance for R&D and production, provide technical support for high-end sensor technical indicators for export, and provide strong protection for the safety performance of sensors widely used in the fields of national defense, advanced manufacturing, and construction industries.
As the professional Investment Casting manufacturer, Alloy Steel Investment Casting is another kind of investment cast made by A&M Manufacturing Co.Ltd., Alloy steel is one kind of steel adding other elements in addition to iron and carbon. It can obtain special properties like high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance.
The main elements of alloy steel are silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, rare earth, etc. Taiyuan SIMIS Precision Casting foundry usually use those following material, such as 42CrMo, 20Mn, 8630, 8620, 4140, 4130, 35CrMo, 20Mn5, 40CrNiMo, and so on. Taiyuan Simis manufactures alloy Steel Investment Casting technique with Lost Wax Casting process for our customers.
According to the total number of alloy elements, alloy steel investment casting can be divided into two major categories of low-alloy steel casting and high-alloy steel casting.
1. Low alloy steel investment casting: the main application of manganese, silicon manganese and chromium, etc. like ZG40Mn, ZG30MnSi1, ZG30Cr1MnSi1, and so on, mainly used to cast gears, hydraulic cylinder and turbine rotors and other parts. However, ZG40Cr1 is often used to manufacture high-strength gears, high-strength shafts, and other important force parts.
2. High-alloy steel investment casting:With wear-resistant, heat-resistant or corrosion resistance and other special properties, such as high-manganese steel ZGMn13, is an anti-wear steel, mainly used in the manufacture of friction in the dry operating conditions used parts, such as excavator grab and grab teeth, concrete pump parts, crawler tractors and tanks, etc. Chrome-nickel stainless steel ZG1Cr18Ni9 and chrome stainless steel ZG1Cr13 and ZGCr28 etc., has high corrosion resistance to nitric acid, mainly used for the manufacture of chemical, petroleum, chemical and food equipment parts.
Comparing with Carbon Steel Investment Casting, the properties of alloy steel Investment Castings are better than carbon steel investment casting and its application is becoming more widely. But the price is higher because of the advantages of alloy steel investment casting. We often use them to manufacture excavator bucket teeth, concrete pump elbows, steel clamps and agricultural castings for tillage points, etc.