Cemented carbide strips are mainly made by mixing WC tungsten carbide and Co cobalt powder by powdering, ball milling, pressing and sintering by metallurgical methods. The main alloy components are WC and Co. The WC in carbide strips for different purposes The composition content of Co is not exactly 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, tungsten carbide bar.
What is the manufacturing process flow of the cemented carbide strip?
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 → low pressure sintering → forming )→Flaw inspection→Packing→Warehousing.
What are the characteristics of cemented carbide strips?
Cemented carbide strip has 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.
Carbide strip material properties and scope of application
| Grade | Co% | Grain size um | Hardness HAR | Density g/cm | Bending strength MPa | Elastic Modulus GPa | Coefficient of thermal expansion 10/C | Scope of application |
| ST05B | 6.5 | 1 | 91.5 | 14.8 | 2800 | 525 | 4.9 | Suitable for processing solid wood, density board, gray cast iron, non-ferrous metal materials, etc. |
| ST10C | 7 | 1 | 90.5 | 14.8 | 2800 | 520 | 5 | Strong applicability, suitable for processing solid wood, density board, gray cast iron, non-ferrous metals and other materials. |
| ST10B | 8 | 1 | 91 | 14.6 | 3000 | 510 | 5.1 | Good comprehensive performance, suitable for processing solid wood, density board, gray cast iron, chilled cast iron, stainless steel, non-ferrous metals and other materials. |
| ST03F | 5 | 0.6 | 93.5 | 14.9 | 2600 | 540 | 4.8 | Ultra-fine grain, good corrosion resistance, high hardness, high wear resistance, suitable for cutting tools with corrosive medium characteristics of bamboo and wood cutting tools and chilled cast iron, hardened steel, PCB, brake materials. |
| ST10F | 6 | 0.6 | 93 | 14.8 | 3000 | 530 | 4.9 | Ultra-fine grains, suitable for making simple-shaped woodworking tools and cutting tools for chilled cast iron, hardened steel, PCB and brake materials. |
| ST15F | 10 | 0.6 | 92.2 | 14.4 | 3300 | 490 | 5.4 | Ultra-fine grains, excellent comprehensive performance, good wear resistance and weldability, suitable for processing solid wood, density board, particle board and other wood materials and chilled cast iron hardened steel, PCB, fiber reinforced materials for fine and rough processing. |
| ST12F | 9 | 0.5 | 93.6 | 14.5 | 4000 | 510 | 5.3 | Ultra-fine grains, high red hardness, suitable for processing high-speed steel, tool steel, chilled cast iron, glass fiber, particle board and stainless steel. |
| ST05F | 6 | 0.6 | 93 | 14.9 | 3200 | 530 | 4.9 | Ultra-fine grain, high hardness, high wear resistance, suitable for bamboo and wood cutting tools. |