Bronze: Copper prices are strong today, but the level of 3100/10 US dollars encountered strong resistance. Aluminum: Aluminum prices continue to maintain range fluctuations. Zinc: Today's zinc price was strong, holding steady at the level of 1250/5 US dollars in early trading and closing at…

In the past, the material returning devices we used on the punching machines were generally dedicated to the special model, and some of the structures were complicated and the volume was large. To this end, I made a simple material return device, which is described as follows: 1. Structure pri…

In order to prevent the influence of process dirt on the assembly and surface quality, a washing device for the liquid bathing workpiece is usually used to obtain high cleanliness of the machine parts. However, such a washing device has some defects, such as trapping air in the blind hole and …

In mechanical products, many shaft bushings tend to have shorter lengths, smaller inner bores, and higher coaxiality and tolerance requirements for inner and outer circles. After the inner hole is finished in the inner hole, the outer circle is clamped by a common mandrel, and it is often diff…

In the development of various types of CNC machine tools and cutting machines in Taiwan, the efficiency of cutting tools must also be followed in order to achieve the efficiency of the machine. Therefore, the cutting tools are designed in the direction of high speed and the selection of suit…

Hubei Provincial Labor Model, Comrade Wang Mingkun, a worker of the Transmission Plant of the Second Automobile Factory, in the era of the production and construction of the first automobile factory, with a stubborn character, the spirit of seeking knowledge and thirst, diligent study, painsta…

In the case of drilling radial holes, the sleeve parts and the perforated shaft parts have been processed only by scribing and common clamping methods, which often fail to meet the requirements of production and quality, and are labor intensive and inefficient. To this end, according to the on…

Siemens is a household name in China, covering a wide range of industries, active in information and communications, automation and control, power, transportation, medical, lighting and household appliances. In recent years, China's machinery manufacturing industry has developed rapidly, an…

The shape of the longitudinal automatic cam is relatively complicated. In the absence of special equipment for cam manufacturing, the scribing milling method is generally used. The following describes the scribe line and processing method of the outline of our factory when processing the cam o…

Instead of using whitening products, it is better to use a healthy diet method to condition the inner skin so that the skin can truly radiate a natural white radiance from the inside out. Today, Aimeijing Health Channel shares several simple and convenient whitening soups. The soup contain…

Overnight London's base metals finished lower again. London copper oscillated sharply last night. Futures prices fluctuate within the broad range of US$7,850-8,180 in intraday trading. The three-month copper futures closed lower by US$65 in late-night general trading. At $7,585 per ton…

At present, deep holes with a drilling diameter of 2 to 30 mm or even 40 mm have been generally processed by gun drilling. Some of the shallow holes also use this processing method. Under the appropriate processing mode, with its own self-guided centering characteristics, one continuous feedin…