Technical Articles
Running Industry Co., Ltd has published these technical articles:
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During the production process, casting enterprises inevitably encounter casting defects such as shrinkage, bubbles, and segregation, resulting in low casting yield. Re production also faces a...
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A processing method that achieves interatomic bonding of workpieces by heating, pressurization, or a combination of both, with or without the use of filler materials. Common methods include arc...
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Anodizing is an electrochemical surface treatment process mainly used for surface treatment of aluminum and its alloys. By applying current to aluminum in the electrolyte, a dense layer of aluminum...
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The corrosion resistance of metals that have been exposed to blackening and bluing originates from the use of bolts. When the company's products are actually purchased, bluing treatment is required,...
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Powder metallurgy is a manufacturing process that involves compacting metal powder under high pressure and then sintering it at high temperature to form solid components. Use a range of metal powders,...
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How to use a laser cutting machine to produce high-quality workpieces? Now let's talk about how to control the cutting quality of a laser cutting machine. Summarize several factors that affect cutting...
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The importance of low-temperature technology is becoming increasingly important. In recent years, China's low-temperature technology has made great progress, and high-tech enterprises such as Zhongke...
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It is estimated that when observing the roughness markings on mechanical component drawings, both Ra and Rz marking methods have been seen, with Ra marking being more common. Some students have...
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Electroplating is very important in the surface treatment of metal parts. By coating a layer of anti-corrosion layer on the metal surface, the anti rust performance of the product can be greatly...
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Metal parts are widely used in our social life and are the most important industrial raw materials. However, the surface is easily contaminated and corroded by the medium. In order to reduce material...
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Casting is the process of melting metal into a liquid that meets certain requirements and pouring it into a mold, followed by cooling, solidification, and cleaning treatment to obtain castings with...
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Hard alloy is a composite material made by powder metallurgy process using refractory metal carbides (mainly tungsten carbide WC) and metal binders (mainly cobalt Co). It has extremely high hardness,...
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In high-tech and heavy industry fields such as aviation, aerospace, high-speed rail, and ocean, the reliability and durability of key components directly affect the safe operation and long-term...
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In terms of composition, commonly used materials are iron, nickel, and diamond based high-temperature alloys. Traditionally, they are classified as iron-based high-temperature alloys (also known as...
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With the development of the hard alloy industry, traditional and backward grinding processes have been replaced by advanced turning, resulting in efficiency improvements of tens or even tens of times....
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Stainless steel, as a corrosion-resistant material, is widely used in many industrial sectors and daily life, and its usage is increasing with the development of industry. Therefore, understanding its...
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Springs, as a common but indispensable mechanical component, are widely used in various mechanical equipment and daily necessities. It cleverly stores and releases energy through its own elastic...
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Alloy elements play a crucial role in the microstructure and properties of steel. By adding these elements reasonably, the mechanical properties, corrosion resistance, heat treatment characteristics,...
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In the field of metal processing, forging technology, as an important forming method, is widely used in various fields such as automotive, aerospace, machinery manufacturing, and weapon industry. It...
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Analysis of 4 kinds of heat treatment...
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Gear nitriding is one of the common methods for gear surface hardening treatment. Gear nitriding is a chemical heat treatment process that allows active nitrogen atoms to penetrate the surface of...
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In the field of aluminum alloy casting, the improvement of material properties often depends on the quality of the heat treatment process. Different from simple casting, heat treatment can achieve...
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Heating aluminum and aluminum alloy materials to a certain temperature and holding for a certain period of time to obtain the expected product structure and properties...
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There are usually several methods for surface hardening treatment of gear materials, Including carburizing quenching, nitriding, induction hardening, and flame hardening, among which carburizing...
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During the cutting process, due to cutting heat, frictional heat between machine parts, internal stress of the workpiece, and clamping force, the workpiece may deform, resulting in waste products....
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Generally, the bolt strength we refer to mainly refers to the tensile strength and yield strength of the bolt. The tensile strength of the bolt refers to the maximum ability of the bolt to resist...
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To address the issue of severe deformation of a certain material at a specific temperature, multiple aspects need to be considered during processing to control and reduce deformation. Here are some...
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The residual acid solution in blind holes during the anodize process of aluminum alloys is a problem that needs to be solved. Due to the special structure of blind holes, acid solution is prone to...
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Although there are many material performance parameters, the main consideration is still the mechanical properties of the material, such as strength and hardness. Especially, "strength" is often the...
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In short lathe thread refers to a machining method that uses cutting technology to "dig" threads on a round rod to produce bolts, Rolling thread refers to another machining method of producing bolts...
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In any electroplating solution, due to the dissociation of water molecules, there is always a certain amount of hydrogen ions present to varying degrees. Therefore, during the electroplating process,...
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Powder injection molding technology is a new process developed from plastic injection molding technology and combined with powder metallurgy, which is divided into ceramic powder injection molding and...
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The film generated by aluminum anodizing, including electrolytic coloring, is porous (with a porosity of about 5% to 30%). This porous film layer has low hardness, poor wear resistance, poor corrosion...
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Due to the micro geometric shape errors on the surface of the parts, when two surfaces move relative to each other, contact can only occur at the peak of the contour, thereby reducing the contact...
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Aluminum alloy is an important industrial raw material. Due to its relatively low hardness and high coefficient of thermal expansion, it is prone to deformation in the mechanical processing of...
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Sheet metal processing is a key technology that sheet metal technicians need to grasp, and it is also an important process for forming sheet metal products. Sheet metal processing includes traditional...
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In order to properly consider shrinkage and casting, it is necessary to understand alloy solidification. The solidification mechanisms of different alloys may vary greatly. Therefore, the methods for...
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In the field of modern engineering materials, stainless steel has become a key material in many industries due to its excellent corrosion resistance, outstanding mechanical properties, and good...
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Analyze the sheet metal stamping process to avoid defects...
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Fasteners, as connecting and fixing components, are widely used in various fields such as automobiles, machinery, electronics, etc. During use, fasteners need to withstand various environmental and...
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The adhesion between the paint film and the substrate can be determined by mechanical bonding, physical adsorption, hydrogen bonding, chemical bonding, and mutual diffusion....
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Precision turning is the most common manufacturing in the metal process. Analyze the main causes and solutions of precision turning various parts' common surface defects!...
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The fundamental reason for work hardening of metal materials, also known as strain hardening, is that the density of internal defects (mainly dislocations) in the metal increases significantly during...
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The refractory materials used in the shell making process of investment casting are generally divided into two types (excluding ceramic cores): one is the refractory powder used to prepare the slurry,...
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What is the role of N element in steel? Nitrogen element in steel can be called a "double-edged hand" that people love and hate. It can solid solution strengthen, refine grain size, enhance steel...
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Carbon is the most important alloy component in steel and cast iron, mainly determining the wide range of mechanical properties that forgings and castings can obtain. When the carbon content of...
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Stainless steel is very important in our production and life. It can be used as a corrosion-resistant material, reducing corrosion losses, increasing equipment service life, improving economic...
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Sheet metal wire drawing is the process of processing metal surfaces through mechanical friction to obtain surface patterns (also known as sanding), including wire drawing, straight lines, and...
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Threads are continuous protrusions and grooves with the same profile formed along a helix on the surface of a cylindrical workpiece. In the machine manufacturing industry, threaded parts are widely...
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Spray coating technology is a surface treatment technique that uses specific equipment to evenly spray paint in a mist form onto the surface of an object, forming a uniform coating film to achieve the...
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Are you curious why metal parts are prone to deformation after processing? Why do bridge welds suddenly crack? Behind these problems, there may be an 'invisible killer' - residual stress! Today, we...
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Whether it's airplanes in the sky, high-speed trains on the ground, or mobile phones in the hand, lightweight and sturdy aluminum alloy has become the cornerstone of modern manufacturing. To achieve...
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The types of lubricants used in the steel wire drawing process are mainly divided into two categories: solid lubricants and liquid lubricants. Their function is to form a lubricating film between the...
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The element symbols in alloy steel grades directly represent the main alloying elements added to the steel. These symbols are usually represented using chemical element symbols, allowing people to...
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The selection of pipelines is a complex issue that usually involves multiple factors such as pipeline material, diameter, wall thickness, and pressure. Here, we will not delve into them in detail, but...
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DACROMET is the transliteration of "zinc chromium coating", also known as Dacron or Dixon. It is a new type of anti-corrosion coating mainly composed of zinc powder, aluminum powder, chromic acid, and...
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Powder metallurgy, as an ancient and dynamic advanced material preparation and forming technology, originated from ancient ceramic preparation technology and ironmaking technology until 1909, when the...
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Salt spray test, as a widely used accelerated corrosion testing method, is an important means of evaluating the corrosion resistance of materials or products in salt spray environments. It simulates...
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Why do some steel parts turn blue (black) on the surface? What is the processing principle and process flow?...
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Stainless steel is a widely used and important type of steel, with 304 and 316 stainless steel being the two most widely used stainless steel grades in the world. Both have excellent corrosion...
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The hardness of materials is a very important performance parameter, which plays an important role in the wear, fatigue resistance, and compression resistance during use. Therefore, we need to measure...
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In mechanical manufacturing, some products have high precision or cannot be measured in certain areas, but we must evaluate whether the processing requirements are met. Based on this, engineers have...
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Hardness is one of the most critical parameters in any machining process, as it affects material removal rate, machine efficiency, and tool life. It is the main parameter for understanding raw...
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We deal with machining every day. Do you know what precision tolerance levels can be achieved by turning, milling, planing, grinding, drilling, and boring? Tolerance level refers to the level that...
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The core reason for the modification of Q345 grade to Q355 in GB/T 1591 standard is to achieve alignment with international standards (such as European EN standards)...
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When discussing the value of water-based coatings, their two fundamental and core functions are to protect the substrate from environmental damage (such as corrosion, wear, UV radiation, chemicals)...
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Hot rolling and cold rolling are both processes of forming steel plates or profiles, which have a significant impact on the microstructure and properties of steel. What is the difference between them?...