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To successfully obtain valuable lunar soil, a series of key core technologies such as surface sampling and drilling are essential. Among them, surface sampling refers to using a robotic arm to carry a sampling device to shovel lunar soil or pick up lunar rocks at multiple positions on the lunar surface; Drilling is the process of using a drill rod to drill into the lunar surface at a predetermined depth and collect lunar soil core samples that maintain the "profile sequence".

What material is bearing steelBearing steel is a steel used to manufacture balls, rollers, and bearing rings. Bearing steel has high and uniform hardness, wear resistance, and high elastic limit. Strict requirements are placed on the uniformity of chemical composition, content and distribution of non-metallic inclusions, and distribution of carbides in bearing steel, making it one of the most stringent steel grades in all steel production.

The bearing ring raceway is the surface of the bearing workpiece, and its quality will directly affect the working performance and service life of the bearing. During use, we often find common quality problems on the surface of bearing rings. How do these quality problems arise? Based on years of experience, here are common quality problems and their causes on the surface of bearing rings.1.

1、 What is bearing chamfer?Chamfer is a term used in mechanical engineering. In order to remove burrs caused by machining on parts and to facilitate assembly, chamfers are generally made at the ends of parts. Chamfering can be seen everywhere in our daily lives, on the borders of mobile phones, on tempered doors, on vases, and so on.The general purpose of chamfering is to remove burrs and make it aesthetically pleasing.

As the world's largest automotive industry chain exhibition, the 2024 Frankfurt Shanghai Auto Parts Exhibition grandly opened at the China National Exhibition Center today (December 2). The exhibition gathers rich resources from the global automotive industry chain, providing an efficient service platform for information exchange, industry promotion, and business services for participants at home and abroad.The 2024 Frankfurt Shanghai Auto Parts Exhibition covers an area of 350000 square meters and gathers more than 6700 exhibiting companies from around the world.

The 20th anniversary celebration of the 2024 Shanghai International Auto Parts, Maintenance, Testing, Diagnostic Equipment and Service Supplies Exhibition (Automechanika Shanghai) was successfully held from December 2 to 5, 2024 at the National Convention and Exhibition Center (Shanghai). The number of participating companies and visitors at this exhibition has broken previous records, fully demonstrating the important influence of Automechanika Shanghai as a professional service platform in the industry, and also reflecting the thriving development of the automotive industry.

Annealing, also known as simmering, code name Th, is the process of heating a steel piece to Ac1 or Ac3 or above (30-50 ℃), holding it for a period of time, and then slowly cooling it (usually using furnace cooling).Normalization, also known as open flame, code Z, is the process of heating steel parts to Ac3 or Acm or above (30-50 ℃), holding them for a period of time, and then cooling them in air at a slightly faster cooling rate than annealing.The main difference between bearing annealing and normalizing is that normalizing is a deformation or special case of complete annealing, and the only

From September 30 to October 5, 2024, Türkiye Machine Tool Exhibition will be held in Istanbul as scheduled. During the exhibition, we received business cards from customers from Türkiye, Iran, Russia and many other countries, felt the enthusiasm of visitors and recognition of our products, and looked forward to cooperating with them.                                                         

After the opening ceremony, Zhou Yu, Chairman of the China Bearing Industry Association, accompanied leaders and guests such as Tang Jun, Director of the General Machinery Department of the Equipment Department of the Ministry of Industry and Information Technology, and Song Zhiming, former Deputy Director of the Planning Department of the Ministry of Industry and Information Technology, to visit the exhibition and exchange ideas with major exhibitors. During the exhibition, the China Bearing Industry Association, the China Petroleum and Petrochemical Equipment Association Industry Associ

1. How to distinguish between heavy bearings and light bearingsActually, these differences are very obvious. Firstly, there is a difference in quality, which is mainly caused by two differences. The first difference is that in many cases, the material of lightweight bearings is different from that of heavy-duty bearings. You must understand this. In order to meet different industrial production or processing needs, bearings must have different performance. The different materials of various bearings are actually due to this reason.Another point is the difference in physical structure.