Accuracy Analysis of Turning Axle Workpieces

Shaft workpieces encounter problems such as lack of accuracy and surface roughness during turning. According to the specific process of turning, carry on the analysis. First, the size of the accuracy of the reasons for not meet the requirements and their s

Production of the largest coke oven gas methanol plant

After more than two years of construction, the 200,000-ton/year coke-oven gas methanol plant of the Yunnan Dawei Coke Co., Ltd., the general contractor of the Second Design Institute of the Chemical Industry, has been completed and put into operation. The methanol is produced successfully. The

"Asia's Best" does not give up any energy-saving star

——In November, Henan Shenma Nylon Chemical Co., Ltd. created an energy-saving enterprise. In November, with the investment of more than 68 million yuan of nitrous oxide treatment projects entering the test phase, all gases produced by the adipic acid plant of Henan Shenma Nylon C

Global oil prices

To date, the price of "WTI" produced in western Texas has been standing above USD 80 per barrel for more than 2 months, and over USD 90 for more than 1 month. In November, when oil prices hit new highs and frequently tested the 100-dollar mark, the oscillations also intensified. At p