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HIP Sintering Radial Bearing

HIP Sintering Radial Bearing offers a number of distinct benefits over more traditional approaches to the process of sintering. It has the ability to generate Bearing parts that have high mechanical strength as well as surface finish. This is mostly attributable to the fact that laser power was utilized in the process of sintering the ceramic material. The component's strength will be diminished if the required amount of laser power is not applied during the sintering of the material.

Ceramic material used

Over the course of the past quarter century, bearing surfaces in orthopedic devices have increasingly been made out of ceramic materials. These are an excellent choice for applications that want to lessen the amount of friction and cut down on the possibility of failure. Ceramics, on the other hand, are susceptible to fractures, which can reduce the amount of time a component can remain in service.

Ceramics are notorious for their fragility; as a result, the manufacturing process must be closely monitored and managed. Ceramics are also susceptible to impurities, which can result in the formation of glassy phases in the grain boundaries. This results in a reduction in the mechanical strength of components as well as their resistance to corrosion.

Ceramic-on-ceramic (COC) radial thrust bearings of earlier generations suffered from poor design and application, which ultimately resulted in catastrophic failures. Enhanced manufacturing processes are required in order to guarantee the dependability of ceramic components of medical grade. The proof testing and hot isostatic pressing are two examples of these processes.

The tribological properties of AMC (Alumina-Matrix-Composite), which is a design for a ceramic-on-ceramic material that is in its fourth generation, have undergone significant advancements in recent years. This design not only makes the bearings' mechanical properties better, but it also makes the components less brittle, which is a significant benefit.

  • Process differences over conventional sintering techniques

    Process differences over conventional sintering techniques

    Sintering is a process that involves compressing a material using a combination of heat and pressure. Sintering is a procedure that is used to improve the qualities of the material, such as increasing its mechanical strength, electrical conductivity, and translucency. In today's manufacturing processes, it is utilized in the production of magnetic materials, self-lubricating bearings, and structural steel components.

    The HIP Sintering Spray Nozzles process is carried out at temperatures that are lower than the material's melting point in order to prevent the substance from melting. It can take anywhere from a few milliseconds to several hours to attain the numbers that are intended. Sintering a material results in a regulated uniform porosity in addition to increasing the density of the material being worked with.

    The material's thermal conductivity can also be increased through the sintering process. The material will become less brittle as a result of this process. Additionally, it gets rid of any isolated pores in the powder.

    Sintering is a manufacturing process that has been around for millennia and is used to produce things out of metal. Ceramics are another one of its applications. In many different types of technical ceramics, controlling grain development is an essential step.

  • Design parameters on contact mechanics at the bearing surfaces

    Design parameters on contact mechanics at the bearing surfaces

    Bearings, in the past, have typically been developed with particular spatial relationships in mind. The transmission of force is typically accomplished through the utilization of these relationships. On the other hand, there have only been a limited number of studies done on hard-on-soft bearing combinations and the effects that they have on contact mechanics. A finite element model was developed for the purpose of studying the contact mechanics of a modular MoP THR while it was subjected to edge loading conditions in this study.

    The HIP Sintering Spray Nozzles FE model was made up of more than eighty thousand individual elements. Tetrahedral elements with four nodes were the most common type of element to be found. After that, these elements were utilized in the meshing of the contact surfaces. The values of the stresses and contact pressures that corresponded to them were measured. According to the findings, it was predicted that the contact pressure exerted on the articulating surface of the component would be greater in the lateral direction than it would be in the vertical direction. When compared to the contact pressure of 1.33 MPa that is observed under standard conditions, it was hypothesized that 800 um microseparations would result in the highest contact pressure of 2.7 MPa.

  • Insufficient laser power during sintering reduces the strength of the part

    Insufficient laser power during sintering reduces the strength of the part

    Powdered polyamide 12 (PA 2200) was used in the manufacturing of an orthopedic implant that was produced with a selective laser sintering (SLS) process. This powder is a material that is biocompatible and is utilized extensively in the medical business for the purpose of fabricating individualized medical implants. In order to melt the powder and generate sintered pieces, the machine makes use of a laser power of 4.5 W valve pads. Inadequate use of laser power during the sintering process might result in the creation of separate layers, which in turn decreases the part's overall strength. Pores can also be created during the sintering process, which can have a negative impact on the mechanical qualities of the components.

    Producing test samples of polyamide 12 (PA 2200) with varying processing settings led to a variety of outcomes. After that, the samples were compressed and examined using a microscope for their microstructure. Microstructural analysis and morphological measurements were used in order to conduct the evaluation of the micro and nanostructures, as well as the mechanical characteristics.

Why choose Zonco Sinotech HIP Sintering Radial Bearing?

  • Support Development and OEM/ODM Service: 

    Modern machinery workshop and personal customization of tungsten carbide inserts. We can partner with you to develop the products you want.

  • High Quality Standards and Strict Production Process :

    IS09001 carbide valve part flow sleeve Certification. The company has strict quality control and employs qualified quality inspectors. We offer top-quality products.

  • 100% High Standard Raw Material: 

    Unique material properties. We can tungsten carbide bushing for choke valve manufacture all extremely complex and severe working conditions beyond your demand We have the advantage in customized.

  • Competitive price and Good Service :

    Packaging in bulk and small quantities of valve trims. Let us help you find the best solution for all your concerns. We can offer you low costs and more flexibility in production management within a quick time.

Vibrations and noise

The vibrations and noise that are produced by the HIP Sintering Thread Nozzles and HIP Sintering Radial Bearing are caused by a number of different factors. To make an estimate of the effects that these factors have on a particular bearing, one can make use of a mathematical model. A model that incorporates multiple dimensions has been developed specifically for the purpose of this article. The model is constructed using axial vibration, and then the theory of acoustic equation is incorporated into its development. In addition to this, it takes into account the effects that waviness has on the rolling element noise.

The model is predicated on the observation that rolling elements are capable of producing noise and are subject to axial vibration. Additionally, the roundness deviation of the inner ring was found to contribute to an increased level of vibration when tested in the low frequency range. In a similar manner, the undulations in three dimensions that are present on the surface of the raceway have an effect on the noise that is produced by the rolling elements. In addition to this, it accelerates the process of wear.

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