Science Classroom : Do you have machining problems? Do your workpieces always have pitting and orange peel? Do you want to know the application of nanotechnology? Here we have a series of industrial science tips to share with you! If you have any questions, please contact us directly and we will help you to solve your problems.
Definition of Grinding What is grinding? Grinding can be described as “an operation that reduces the surface roughness of a workpiece as much as possible without damaging its shape.” Grinding is a machining action carried out using a grinding machine. In Chinese, grinding machines are referred to as “grinders,” known as “ken sakuban” in Japan. …
Relative hardness and absolute hardness are clearly explained in textbooks. The relative hardness of minerals is divided into 10 levels. When two minerals are rubbed together, the one that gets scratched has the lower hardness, meaning that the harder mineral will scratch the softer one. The representative minerals for each level of relative hardness from 1 to 10 are as follows: 1 – Talc, 2 – Gypsum, 3 – Calcite, 4 – Fluorite, 5 – Apatite, 6 – Feldspar, 7 – Quartz, 8 – Topaz, 9 – Corundum, 10 – Diamond. This relative hardness scale was first developed by mineralogist Friedrich Mohs (1773-1839), and as such, relative hardness is also called the Mohs hardness scale. Mohs was born in Germany but moved to Austria in 1801 to work in mineral identification, which is why some books refer to him as Austrian, while other sources refer to him as German.
When traditional mechanical polishing methods are used on large-area PCD products, the polishing wheel first contacts the raised areas caused by stress deformation. This leads to longer polishing times and localized thinning. To address this issue, the author designed and implemented a dual-rocker swinging fixture, allowing the polished surface to adaptively contact the polishing wheel’s end face during the process. This article primarily discusses the features and effectiveness of this new processing equipment.
The ISO 6743 standard “Lubricants, industrial oils and related products (class L) — Classification” divides lubricant products into 18 groups, which are arranged according to the letters A to Z. A：Total loss systems B：Mould release C：Gears D：Compressors (including refrigeration and vacuum pumps) E：Internal combustion engine F：Spindle bearings,bearings and associated clutches G：Slideways H：Hydraulic systems M：Metal working …
The Application Occasion Classification of Lubricant Read More »
Nanoparticles have several advantages as photocatalysts. First, their small particle size and large specific surface area result in higher photocatalytic efficiency. Additionally, the electrons and holes generated by the nanoparticles are less likely to recombine before reaching the surface, allowing for a higher quantity of charge carriers (electrons and holes) to participate in chemical reactions, thus increasing the activity. Furthermore, nanoparticles often exhibit transparency when dispersed in a medium, making it easier to study charge transfer, proton transfer, and the effects of semiconductor energy levels and surface state densities using optical methods.
Grinding wheels are an essential consumable in the general tool processing industry. You often see diamond grinding wheels being used in factories, but have you ever wondered how they are made? What are the processes and techniques involved in their production? Let us take you behind the scenes to uncover the top-level production secrets of diamond grinding wheel manufacturers.
The appearance of steel patterns on molds usually has two main causes: One is the quality of steel material ,many mold manufacturers choose lower-quality steel to save costs, which can result in surface patterns and fine lines after the molds undergo polishing. Under light, these patterns can cause distortion, and polishing can only alleviate the visibility of these steel patterns. The other reason is the polishing technician lacks adequate skills, it may also lead to the development of steel patterns on the mold surface.
The formation of pitting during polishing—Is it a material issue or a technique problem? If it’s a technique issue, can it be prevented? To solve this problem, we first need to understand how it occurs. There are three main reasons behind this issue. Let’s take a closer look!
The orange peel effect that occurs during polishing has long been a persistent issue. Is it caused by the raw material, the polishing tools, or the technique? How can we avoid the orange peel effect? Let’s explore this issue in detail.
