1. How does the elevator work? The elevator has a car and a counterweight, which are connected by a wire rope. The wire rope is driven by the traction of the driving device (the traction machine), so that the elevator car and the counterweight move up and down on the inner rail of the elevato---
The multifunctional electric hoist belongs to a kind of special electric hoist in a sense, and the application is very extensive. The following focuses on the installation and commissioning of the multifunctional electric hoist. 1. Before using the product, the user should check whether the machine---
1. Selection of welding parameters The welding current is too large, the weld microstructure is coarse, which affects the performance; the welding current is too small, the welding heat input is small, and it is easy to cause welding defects such as incomplete penetration and unfusion, and the work---
Emergency rescue is the most effective action to save lives and reduce losses in the event of a disaster. However, emergency rescue workers often face multiple hazards in disaster relief. For example, during the “5.12†earthquake relief work, due to the high risk of the Sichuan earthqua---
How to use the refrigerator: 1. How to use the refrigerator temperature compensation switch The Oaks household refrigerator is a wide- climate rechargeable refrigerator designed according to the characteristics of large temperature difference between the north and the south of China. In the c---
Ice jade shopping tips: 1 look at the color. See if the color is pure, rich, even, and use a spotlight to check for hidden variegated colors. It is better for the color to be rich, pure, uniform, and the impurities are small. Emerald green has a higher price, followed by red and purple. In t---
1. Analysis of barrel welding quality There are two pieces of 30894 cylinders. After the production, the welding quality of the first few processes reached 90%, and the welding quality of the circumferential weld of the barrel and the flange of the subsequent process showed large defects, and the ---