Carbide plate, also known as carbide plate, carbide sheet. It is one of many materials for hard alloys. It is named after its rectangular plate (or square). The main alloy composition of cemented carbide plate is WC and Co. The content of WC and Co in carbide alloy plates of different uses is not consistent, and the application range is extremely wide. If you are interested in this, you may wish to follow me to understand the relevant knowledge of the next hard alloy sheet it!
Carbide plate introduction
Carbide plate is one of the many materials of tungsten steel. It is made by milling, ball milling, pressing, and sintering. The contents of WC and Co in tungsten steel plates of different uses are not consistent. The range is extremely wide, with excellent hardenability, high hardness, good wear resistance, high elastic modulus, high compressive strength, good chemical stability (acid, alkali, high temperature oxidation), low impact toughness, low expansion coefficient , Thermal conductivity, electrical conductivity and iron and its alloys similar characteristics. It is also an excellent material for producing high-temperature parts, wear-resistant parts, shielding parts, and corrosion-resistant parts. When using, tungsten steel plate of suitable material should be selected according to the purpose.
Carbide plate has excellent hardenability, high hardness, good wear resistance, high elastic modulus, high compressive strength, good chemical stability (acid, alkali, high temperature oxidation), low impact toughness, low expansion coefficient , The characteristics of heat conduction, conduction and iron and its alloys are similar, because tungsten steel turning tools have great advantages, they will be quickly promoted in the industry. In just 50 years, due to the use of tungsten steel turning tools, the metal cutting speed has increased 200 times, from 10 meters per minute to more than two kilometers. Heat-resistant tungsten steel still maintains good elasticity and mechanical strength, and is generally used for thicker cutting, intermittent cutting, and poor part clamping. After the coating is better, it can be processed to various materials with HRC50°. Corresponding general tungsten steel, with 1 ~ 2 times the service life and excellent impact resistance.
Carbide plate use
Tungsten steel plate has excellent hardness, high hardness, good wear resistance, high elastic modulus, high compressive strength, good chemical stability (acid, alkali, high temperature oxidation), low impact toughness, low expansion coefficient, The characteristics of thermal conductivity, electrical conductivity and iron and its alloys are similar to each other. Due to the great advantages of tungsten steel turning tools, they are rapidly being promoted in the industry. In just 50 years, due to the use of tungsten steel turning tools, the metal cutting speed has increased 200 times, from 10 meters per minute to more than two kilometers. Heat-resistant tungsten steel still maintains good elasticity and mechanical strength, and is generally used for thicker cutting, intermittent cutting, and poor part clamping. After the coating is better, it can be processed to various materials with HRC50°. Corresponding general tungsten steel, with 1 ~ 2 times the service life and excellent impact resistance.
Carbide plate range of application
The application of carbide plate is mainly divided into three categories:
1. Used for making stamping dies. It should be used to make high-speed punches and multi-position progressive dies for punching copper, aluminum, stainless steel, cold-rolled sheets, EI sheets, Q195, SPCC, silicon steel sheets, hardware, standard parts, and upper and lower punch sheets.
2. Used to make wear-resistant tools. Such as woodworking industry tools, plastic crusher tools.
3. For the production of high temperature parts, wear parts, anti-shielding parts. Such as the machine tool rails, automatic teller machine anti-theft reinforcement board.
4. Used for making corrosion-resistant parts in the chemical industry.
5. Radiation protection and anti-corrosion materials for medical equipment.
6. The material properties of hard alloy plates of different uses are not consistent, and the carbide alloy plates of suitable materials should be selected according to the use.
Carbide plate production process
Milling → Formulation according to application → Wet grinding → Mixing → Pulverization → Drying → Sifting → Adding a forming agent → Drying → Screening → Preparation of mixture → Granulation → Pressing → Molding → Sintering → Molding (blank) →Flaw Detection → Packaging → Storage.
Carbide plate processing considerations
Cemented carbide tungsten steel has brittleness because of its high hardness. It is easy to forbid accidental knocking or dropping when it is used, transported or processed. It is easy to cause safety accidents, personal injury and property damage, and to avoid such unnecessary loss. We remind our customers that when using tungsten steel, attention should be paid to the processing precautions of cemented carbide steel. The specific precautions are as follows:
First, when cutting and grinding:
1. Tungsten steel is susceptible to cracking and chipping under impact and excessive processing loads. Carbide must be firmly fixed to the work table before machining.
2. The magnetic properties of tungsten steel are very low, and there is no magnetism in the non-magnetic hard alloy. Please do not use a magnet to fix the hard alloy. Please fix it with fixtures. Before processing, please confirm whether the workpiece is loose. If yes, please fix the workpiece. To a firm stop.
3. The working surface of tungsten steel after cutting and grinding will be very smooth, and the angle is very sharp. Please pay attention to safety during handling and use.
4. Cemented carbide is a material with extremely high hardness and brittleness. For fear of impact, it is forbidden to use a metal hammer to strike a hard alloy.
Second, in the discharge, wire cutting processing:
1. Tungsten steel has high hardness and high wear resistance, and the working process will be slow when discharging or wire cutting.
2. The surface of tungsten steel after electric discharge machining is most likely to be cracked and chipped. Therefore, please adjust the processing procedure according to the conditions of use of the product.
3. When the tungsten steel is cut online, it often causes cracking. Therefore, after processing, confirm that the machining surface is free from defects and then perform the next process.
Third, in the welding process:
1. Please use the required welding/splicing process.
2. The tungsten steel is prone to cracks during the welding process. Please confirm that there is no damage to the processed surface after processing and then proceed to the next process.
3. When the flying material (welding iron) generated during the welding operation adheres to the cemented carbide, the alloy may crack due to cooling after rapid heating. Therefore, be careful when performing welding operations.
Fourth, when performing HIT processing:
1. When perforation or tapping is performed on packing materials (diffuse bonding), packing may shake or cemented carbide may crack. Please strengthen the inspection and confirm that there is no abnormality after the operation.
2. When carrying out all processing operations: Any safety devices on the machine must be used during processing operations. Staff must wear safety equipment that protects the eyes, hands, feet, head and body.
Editor's summary: The above is a brief introduction of the production process of the hard alloy sheet and the related knowledge of processing. I hope to help those friends who have this need! For more information, please continue to pay attention to our website, follow-up will show more exciting content.
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