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Aerospace engine turbine shaft rotor achieves 3D printing fo…

Recently, 31 countries and the Northwestern Polytechnical University jointly undertaken a national 3D printing manufacturing technology promotion application project - "laser selection melting forming technology" (that is, a 3D printing technology applied to a turbo ......

"China's largest gold mine" large-scale grindi…

On January 7, CITIC Heavy Industry Co., Ltd. was the “China's largest gold mine” – the core equipment developed by Zijin Mining's Zijinshan Gold and Copper Mine. 覫7.9×覫13.6m overflow ball mill, 覫11×覫5.4m semi-self The mill ......

Pump cavitation on the pump what harm?

Pump coal mine is equivalent to the coal mine "heart", the performance of the pump performance directly affects the safety of coal mines, disturbing the normal operation of the pump is a big problem of damage to the pump impeller blades, resulting in such damage The main reason is often ......

Three decoration taboos to know before decorating

Sometimes when we do things, doing something wrong may be worse than not doing something. For example, a mobile phone can also call and surf the Internet, but after a few "frustrating times," the phone completely "stops cooking." In the treatment of decoration is also the case, ......

[Management] Analysis of Integrated Comprehensive Security M…

News Related Keywords: No tags. Large quantities of volatile, flammable, and toxic gases exist in chemical plants, chemical warehouses, etc. Once leaked, it will have a major impact on the human body and the surrounding environment; and such areas are flammable and explosive high-risk areas, such ......

Strength Analysis of Fasteners in Thick Sandwich Single Shea…

Strength analysis of fasteners in thick sandwich single-shear joints Guo Xiaoning Zhang Xu Shanghai Aircraft Design and Research Institute, Shanghai 201210 No. on the thickness of the connecting piece (mm) with 樯 according to 19.51 level 29.52 level 39.53 level 49.54 level 59.55 level G522 leve ......

Talking about the four major considerations for using the LC…

There are some differences in the performance of LCD monitors versus flat monitors. However, these gaps are gradually narrowing. The 27-inch LCD monitor produced by the monitor is far higher than the display effect of the 29-inch flat-screen line-by-line monitor, not only in the definition of the s ......

Overnight aluminum oscillation rebound technology form stron…

Outside the plate trend: overnight aluminum oscillations rebounded, which 3 months late aluminum rose 0.95% to 1486.5 US dollars / ton, currently running at the intersection of multiple averages Lum Al, last week, the cumulative decline of only 1.07%, the performance is far le ......

Study on Performance of Vermiculite Thermal Insulation Morta…

The current thermal insulation mortars used in construction projects include expanded perlite thermal insulation mortar, fly ash thermal insulation mortar and EPS thermal insulation mortar. The traditional thermal insulation mortar has high water absorption, low strength, high brittleness, and po ......

Timber market timber prices are much better than the origina…

What is the price of logs in the timber market? The original wooden door that brand is better? Everyone has a very high knowledge of home improvement, then everyone will choose a better wooden door. Then the original wooden doors are wooden doors that many families now choose. What is the price of ......