This technical requirement specifies the technical requirements for the manufacturing, installation and inspection of the steel structure high-strength bolt auxiliary connectors of mobile machinery and equipment. The content not specified in this technical requirement shall be implemented in accordance with relevant national standards. This technical requirement applies to mobile mechanical steel structures that need to be connected by high-strength bolts.
Joint surface treatment
(1) Friction type high-strength bolt connection requires close contact with the joint surface at the joint and sufficient friction coefficient. When the design drawing does not specify the treatment requirements of the joint surface, the treatment shall be carried out according to the following regulations: sandblasting or shot blasting the high-strength bolt joint surface to remove rust, oil and other impurities on the surface to reach the Sa2.5 level standard , The roughness is 50~75μm, and the friction coefficient shall not be lower than 0.40. When there are provisions in the drawings, follow the provisions of the drawings.
(2) After treatment, the friction surface of the high-strength bolt connection should be protected from dirt and oil. It is strictly forbidden to make any mark on the friction surface of the high-strength bolt connection. It is necessary to prevent contamination of the connecting surface during storage in the factory, or during transportation or storage at the installation site. The installation unit should pay special attention to the cleanliness of the connection surface of the connection plate of the high-strength bolt and the parent body and the characteristics of the friction surface. It is not allowed to use a grinder to polish the connecting surface of the connecting plate and the connecting surface of the mother body.
Metal Packaging Has An Irreplaceable Position in The Packaging Industry With Its Excellent Performance And Superior Texture.July 1, 2022Metal packaging has an irreplaceable position in the packaging industry with its outstanding performance and superior texture.Timeshare safety: Metal packaging shows good stability, with high strength...view
New Confirmed Cases In Hangzhou, Zhejiang, ChinaJune 30, 2022On the morning of October 31st, a case of COVID-19 nucleic acid positive was detected in the forenoon of Hangzhou transit train from Hangzhou.Zhan, female, took G1382 train from Shangrao to Shanghai o...view
Introduction To Tin PlatingJune 30, 2022Tin plating and its alloy are two kinds of coating with good weldability and certain corrosion resistance. It is widely used in electronic components and printed circuit boards. In addition to physica...view
Mauser Has The World's Largest Recycling System For Used Packaging Containers. How Does It Work?June 30, 2022Each year, Mauser's container recycling system collects tens of millions of used, empty IBCs, plastic and steel drums from companies around the world. Why do we do this? Because Mauser thinks it&#...view
Classification and Process Flow of Steel DrumsJune 30, 2023The steel drum is one of the traditional containers and occupies a very important position in the traditional containers. The function of steel drums has evolved from temporary storage of contents to ...view
Mastering the Art of 55 Gallon Drum CapsFebruary 21, 2024The 55-gallon drum is a staple in many industries, from oil and chemical to food and beverage. These drums are used for storing and transporting a wide variety of materials, making them incredibly ver...view
EN
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
