Charpy impact properties of modified tungsten materials

The brittleness transfer temperature (DBTT) of modified tungsten materials can be evaluated by several test methods, such as tensile test, bending test, Charpy impact test and fracture toughness test. DBTT depends largely on the test method, strain rate and sample shape. Among them, researchers evaluated DBTT using Charpy impact and tensile tests. 2023-06-06 view: 326

Data of China’s import and export of tungsten products in April 2023

From January to April in 2023, the cumulative import volume of China's tungsten products was 2474.50 tons, a year-on-year decrease of 12.90%%; The cumulative import value was 420 million yuan, down 10.41 percent year-on-year. 2023-05-27 view: 387

Tungsten and molybdenum market

The tungsten price is temporarily stable, and market participants are cautiously watching the fundamental situation. Although there is some cash-out sentiment in the raw material end, the overall willingness to make price is not high, and the state of downstream users cautiously receiving goods on demand continues, and there is no clear positive news guidance in the demand end. Tungsten product prices in the short term to maintain the basic weak stable operation, the market trading caution, deal to negotiate more price. 2023-05-20 view: 340

How many ways to synthesize tungsten hexachloride?

Tungsten hexachloride (WCl6) is a typical compound of the transition metal tungsten. It is a dark blue or blue purple powder with good catalytic performance, good oxidation and reducibility. It can not only be used to produce other products of tungsten, but also as a catalyst for olefin polymerization. The main synthesis methods of WCl6 are as follows: 2023-04-28 view: 359