Precautions for use of carbide woodworking tools

1) Hard alloy is a hard and brittle material, which is brittle and broken under the action of excessive force or certain specific local stress, and has a sharp edge. 2) Most cemented carbides are mainly composed of tungsten and cobalt, which are very dense. They should be handled with care during transportation and storage. 3) Cemented carbide and steel have different thermal expansion coefficients. In order to avoid stress concentration cracking, welding should be carried out at appropriate temperature. 4) Cemented carbide tools should be stored in a dry environment away from corrosive atmosphere. 5) During the cutting process, carbide tools will inevitably produce chips and chips. Please prepare before processing

21

2019

/

05

What do you know about the types and uses of cemented carbide tools that are more expensive than gold?

What is the composition of cemented carbide? Cemented carbide is made of carbide (called hard phase) and metal (called bonding phase) with high hardness and melting point by powder metallurgy process. The carbides commonly used in cemented carbide tools include WC, TiC, TaC, NbC, etc. The common binder is Co, and the titanium carbide based binder is Mo, Ni. The physical and mechanical properties of cemented carbide depend on the composition of the alloy, the size of the powder particles and the sintering process of the alloy. The more hard phases with high hardness and high melting point, the higher the hardness and high temperature hardness of the alloy, the more adhesive, the higher the strength, and the addition of TaC, N into the alloy

21

2019

/

05

The trade war launched by the United States after the bullish aluminum price pushed up the tungsten price

If trade frictions escalate, China may carry out anti-sanctions against the United States in the field of tungsten resources. The deep processing of American tungsten industry is highly dependent on China's imports. After Trump imposed tariffs and imposed trade sanctions on Rusal, the price of LME aluminum rose to a new high in nearly seven years. Besides aluminum, who is the next metal that may rise? Zhao Dongchen, chief analyst of the raw materials industry of ICBC International, told the interface reporter that the development of Sino-US trade friction will have a key impact on the rise of tungsten. (EDM plate mold material of Jiangxi Zhonggang Industrial Professional non-standard cemented carbide manufacturer) April 23

29

2019

/

05

China acquires overseas mineral resources to strengthen the development of high-temperature alloys and cemented carbides

As the "crown of modern industry", aero-engine is one of the most difficult cutting-edge technologies to break through. China has not been able to thoroughly master the production and development of modern aero-engine for decades, one of the reasons is that the material processing, such as superalloy, and other fields are far behind. The core index of aero-engine is the thrust/weight ratio, and the key to improve the thrust/weight ratio is to improve the high-temperature resistance of turbine blade materials. Every 100 ℃ increase in temperature will increase the thrust/weight ratio by 10%. Generally speaking, a military turbine engine needs to invest at least several billion dollars from development to project approval, and a considerable part of it is spent on materials, which is not good for military powers such as the United States and Russia

29

2019

/

05

< 12 >