1. The definition of the nouns of cemented carbide strips
Cemented carbide strips are mainly made by mixing WC tungsten carbide and Co cobalt powder through powder milling, ball milling, pressing, and low-pressure sintering by metallurgical methods. The main alloy components are WC and Co. The content of WC and Co is not the same, and the application range is extremely wide.
Cemented carbide strip is one of many materials, named after its rectangular plate (or square), also known as carbide strip.
2. the production process of cemented carbide strips
Pulverizing → formula according to application requirements → wet milling → mixing → crushing → drying → sieving → adding forming agent → re-drying → sieving to obtain a mixture → granulating → pressing → forming → sintering → forming (blank) →Flaw inspection→Packing→Warehousing.
3. Material performance characteristics
Cemented carbide strips have excellent hardening properties, high hardness, good wear resistance, high elastic modulus, high compressive strength, good chemical stability (acid, alkali, high temperature oxidation resistance), low impact toughness, and expansion coefficient Low, thermal conductivity, electrical conductivity similar to iron and its alloys.
4. the advantages and application scope of cemented carbide strips
Cemented carbide strips have the characteristics of high red hardness, good weldability, high hardness, and high wear resistance. They are mainly used in the production and processing of solid wood, density board, gray cast iron, non-ferrous metal materials, chilled cast iron, hardened steel, PCB, brake material. When in use, you should select the carbide strip of suitable material according to the specific purpose.
5. Commonly used brazing methods for carbide strips and steel
① Oxygen-acetylene flame brazing is one of the most commonly used brazing methods.
② High frequency induction brazing
③ Contact brazing
④ Copper immersion brazing
