Application of welding in the "Bird's Nest" project

More than 2,000 workers build the National Stadium Shen Yongshan, deputy general manager of Guoao Investment Development Co., Ltd., the head of the National Stadium, said that the National Stadium project, which started on May 28 this year, covers an area of ​​6.87 hectares and is ex

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Aluminum alloy precision extrusion technology

Abstract : This paper introduces the characteristics and technical requirements of precision extrusion of aluminum alloy, as well as some examples of small precision aluminum alloy profiles. Key words : aluminum alloy; precision extrusion; technical requirements Many modern industrial equipment su

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Improvement of electrical control of C6132D horizontal lathe

There are five C6132D horizontal lathes for internships in our internship factory. During the internship process, it was found that there were certain safety hazards: the student in the operation, after the workpiece was clamped, the wrench was not removed from the chuck to start the lathe, so that

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Simple circular groove milling equipment

For the welding process of pressure vessels, in order to ensure the welding quality and meet the requirements of safety technical standards, it is necessary to process the welding groove from the process point of view. Due to the high cost of large edge planers, we have designed a simple arc-groove

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JCD01A_ machine clamp heavy duty tool

In order to solve the problems of heavy casting and forgings with large machining allowance, low cutting efficiency and large consumption of tools, in October 1985, our factory cooperated with Pazhou Cemented Carbide Factory to carry out research and test work on heavy-duty knife. JCD01A - machine

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Special tools for removing tapered roller bearings

In order to facilitate the removal of the 7217E tapered roller bearing, I have designed a special tool as shown in the figure. The method of use is as follows: (1) Extend the assembled tool body 8 and the leg 9 into the inner hole of the bearing outer ring 10 so that The pin 9 is bent against the h

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