Do you know how Tungsten Carbide Parts are manufactured?

Tungsten carbide parts are widely used in aerospace, oil and gas, electronics, chemical industry and other fields, and they have excellent properties such as high hardness, high melting point, high temperature resistance, wear resistance and so on, so they have important application value in industrial production. However, few people understand the complete process of making tungsten carbide parts. The production process of tungsten carbide parts includes steps such as powder making, pressing, sintering, plane grinding, external grinding, internal grinding and polishing.
The Production Of Tungsten Carbide Products Will Use Those Processes

The Production Of Tungsten Carbide Products Will Use Those Processes

Powdering:

- Methods and principles of tungsten carbide powdering.

The principle of tungsten carbide powder making is to make tungsten raw materials react accordingly by physical or chemical methods to form tungsten carbide particles. Mechanical method is mainly through the role of mechanical force, so that the raw materials are friction, collision and broken, so as to realize the preparation of tungsten carbide. Chemical method is mainly through the chemical reaction in the solution, so that the tungsten ions in the solution react with the precipitant or precursor to form tungsten carbide particles. The process of making tungsten carbide parts begins with powder making. During the powder making process, the proportion of powder components and particle size need to be controlled to ensure the smooth running of the subsequent process.

- The effect of powdering on the performance of the final product.

Powdering has a significant impact on the final product properties. Powdering methods and process parameters (such as ball milling time, material and size of ball milling media, choice of solvent, etc.) will affect the particle size, morphology and distribution of tungsten carbide powder. The size and distribution of particle size will affect the properties of the final product, such as density, hardness and wear resistance. Different morphology (such as particle shape and surface morphology) will also affect the performance of the final product, such as particle shape and surface morphology will affect the molding performance and surface quality of the final product. Therefore, the powder making process needs to be precisely controlled to obtain the desired powder properties.

Pressing:

- The process of tungsten carbide pressing.

Tungsten carbide pressing is a process in which tungsten carbide powder is treated with a certain process and pressure to form a solid block.

- Purpose and importance of pressing.

The purpose of pressing is to achieve the molding and reinforcement of tungsten carbide materials. Through pressing, tungsten carbide powder can be tightly bonded together to form a strong solid structure. This increases the density and strength of the tungsten carbide material and improves its properties such as abrasion resistance, corrosion resistance and high temperature resistance.

The importance of pressing is that it is a key step in the preparation of tungsten carbide. Through pressing, the inter-particle voids of tungsten carbide powder can be minimized and the density of the material can be improved. At the same time, pressing can also change the microstructure of the material, so that it has better mechanical properties and thermal stability. Pressing can also provide a better basis for subsequent sintering, heat treatment and processing.

Sintering:

- The process of sintering.

Under the action of high temperature, fusion and diffusion occur on the surface of powder particles, so that a bonding force is formed between the particles. At the same time, due to the action of surface tension, the voids between the particles are gradually reduced, and finally a dense tungsten carbide part is formed. The temperature and time of the sintering process are important conditions affecting the sintering results, and it is usually necessary to determine the optimum sintering temperature and time according to the characteristics of the specific material.

- Effect of sintering on product density and hardness.

Sintering has a significant effect on the density and hardness of the product. During the sintering process, the bonding and diffusion between the particles of the material will occur at high temperatures, resulting in a gradual reduction of the voids between the particles, thus improving the density of the product. At the same time, the high temperature heating in the sintering process can also promote the growth of material grains and improve the continuity of grain boundaries, thus increasing the hardness of the product. Therefore, sintering is one of the important processes to improve the density and hardness of materials.

Flat grinding:

- The effect of surface grinding on the roughness and flatness of product surfaces.

Surface grinding is a commonly used surface treatment method for precision machining of product surfaces to improve their roughness and flatness. Surface grinding mainly removes the uneven part of the surface of the workpiece by grinding and cutting to make it flatter and smoother.

Surface grinding removes the rough part of the surface of the workpiece to make its surface smoother. Remove the uneven part of the surface of the workpiece to make its surface more flat. At the same time, it can repair the defects on the surface of the workpiece, such as cracks and pits.

Surface grinding can remove the unevenness of the surface of the workpiece to make its surface more flat. It improves the parallelism of the surface of the workpiece and makes its surface parallel to the reference surface. It can improve the perpendicularity of the surface of the workpiece so that its surface is perpendicular to the reference surface.

Cylindrical grinding:

- Effect of cylindrical grinding on dimensional accuracy and roundness of products.

Cylindrical grinding is a common machining method that can be used to improve the dimensional accuracy and roundness of products. Cylindrical grinding can be used to improve the dimensional accuracy of a product by removing irregularities from the surface of the material. During cylindrical grinding, the grinding tool flattens the high points of the material surface and fills in the low points at the same time, thus making the surface of the product flatter. As a result, the dimensional accuracy of the Nonstandard Tungsten Carbide Parts is improved, and its dimensional deviation is reduced.

Cylindrical grinding also improves the roundness of the product. Roundness is the degree of deviation of the product surface from the ideal circle. During cylindrical grinding, the grinding tool grinds along the circumference of the product, making the surface of the product rounder. As a result, the roundness of the product is improved, and its roundness deviation is reduced.

Internal cylindrical grinding:

- The effect of internal cylindrical grinding on the accuracy and roundness of product bores.

Internal cylindrical grinding is a machining method used to process the inner hole of a product, which has an important influence on the precision and roundness of the product hole diameter.

1. Hole diameter accuracy: Internal cylindrical grinding can realize the precise control of product hole diameter by controlling the grinding process parameters and the size of the grinding wheel. During the grinding process, the relative motion between the grinding wheel and the workpiece will make the workpiece's aperture change, and by adjusting the grinding process parameters and the size of the grinding wheel, the aperture change during the grinding process can be controlled, so as to realize the requirement of aperture accuracy.

2. Roundness: Internal cylindrical grinding can realize the roundness control of the product aperture through the control of the shape of the grinding wheel and the grinding process parameters. During the grinding process, the relative motion between the grinding wheel and the workpiece will make the shape of the workpiece's aperture change, and by adjusting the shape of the grinding wheel and the parameters of the grinding process, the shape of the aperture changes during the grinding process can be controlled, so as to realize the requirements of roundness.

Polishing:

- Polishing has a significant impact on the surface finish and quality of the product.

Polishing has a significant impact on product surface finish and quality. Through polishing, the unevenness and small defects on the surface of tungsten carbide parts can be removed, making the surface flatter and smoother. This not only improves the appearance quality of the product, but also reduces friction and wear and prolongs the service life of the product. In addition, polishing can also improve the corrosion resistance and oxidation resistance of tungsten carbide parts, making them more suitable for use in harsh environments. Therefore, polishing is a very important step in the processing of tungsten carbide parts.

The complete steps in the production of tungsten carbide parts include powdering, pressing, sintering, plane grinding, external grinding, internal grinding and polishing. Each of these steps is indispensable, requiring precise control of process parameters and the use of specialized tools that have a significant impact on the quality and performance of the final product. By understanding these steps, we can better understand the manufacturing process of tungsten carbide components and the wide range of applications in various industries. Langsun Carbide is equipped with extremely professional production facilities and a dedicated technical team to provide high quality tungsten carbide nonstandard customized parts to customers from industrial sectors all over the world.