Cemented carbide is brittle and hard, has poor toughness and high price (tungsten and cobalt are both scarce materials), making it difficult to be made into large-sized and complex-shaped components. Therefore, in order to reduce costs, improve work performance and service life, it is necessary to continuously develop composite technology for cemented carbide.
The brazing technology of cemented carbide and steel body is among the composite technologies . It has a series of advantages, such as simple process, high connection strength, good result repeatability, wide adaptability of joint size and shape, relatively low cost, and suitable for large-scale production, and has become the preferred technology.
Therefore, in order to better and more rationally apply cemented carbide, it is necessary to understand the characteristics of its jaw welding performance, and choose a suitable welding process according to its different uses.
Specifically, the carbide brazing or welding technology has the following characteristics:
⑴ The brazing heating temperature is low, the joint is smooth and flat, the structure and mechanical properties are small, the deformation is small, and the workpiece size is accurate.
⑵ It can weld the same kind of metal or dissimilar materials, and there is no strict limitation on the thickness difference of the workpiece.
⑶ Some brazing methods can weld multiple weldments and multiple joints at the same time, and the productivity is very high.
⑷ The brazing equipment is relatively simple to conduct and the production investment cost is relatively low.
⑸ The joint strength is low, the heat resistance is poor, the pre-welding cleaning requirements are strict, and the solder price is relative expensive. Hence the quality of carbide brazing is higher.
Below are some of the outstanding carbide brazing products that ZZ Old Craftsman manufactures, they are all carbide brazed products, and the carbide tips are welded onto the steel:
( Product name:
Row 1: carbide tip/impact plate for crushing, carbide conveyor belt secondary scraper blade cleaner, carbide liner for ceramic mold;
Row 2: carbide chute liner plate, carbide refractory brick mold liner, carbide crushing inserts or tips)
