The output shaft of the auxiliary gearbox is a crucial component that bears a significant torque during vehicle operation. Therefore, it requires high strength. The technical requirements of the drawing include using material 40Cr and …
After martensite quenching and tempering, the structure of high-carbon chromium steel bearing parts should be cryptocrystalline or fine-crystalline with small acicular martensite. Additionally, it should have evenly distributed fine residual carbide and a small amount …
Recently, an agricultural machinery company received a large number of quality information feedback and complaints: when the user of the DF 300 wheel tractor was engaged in rotary tillage, the power output transmission gear in …
Power Output Transmission Gear: Failure Analysis and Rectification Measures Read More »
1. Preamble 5CrNiMo steel hot forging die has high cost and large consumption, so it has important economic value to improve its service life. There are many factors affecting the service life of the mold, …
Study on Heat Treatment of 5CrNiMo Steel Gear Hot Forging Die Read More »
Why is the cross-section of the transmission shaft circular in shape? Today, I will provide a technical analysis to answer this question. 1. Mechanical analysis of torsion 1. Torsion form (1) Convention on torque symbols …
Why Was the Section of the Transmission Shaft Made Into Circle? Read More »
The 22SiMn2TiB steel, also known as 616, is a special high-strength, martensitic, and heat-resistant steel with excellent comprehensive mechanical properties at extremely high temperatures. This steel is primarily used for manufacturing high-temperature structural parts and …
Heat Treatment of Special Steel Plate (22SiMn2TiB): Process Analysis Read More »
At present, there are many kinds of groove quenching parts, such as camshaft open grooves and differential cases. However, the quenching quality of groove parts has not been guaranteed, and quenching is also very difficult. …
1. Preface This article discusses the impact of surface carbon concentration on the heat treatment properties of 20CrMo steel. To ensure the desired carbon content in the furnace atmosphere throughout the carburizing process and the …
Cast aluminum” generally refers to aluminum castings made through the casting process, while “die-cast aluminum” refers to aluminum castings made through high-pressure die-casting. The primary difference between the two is the casting process used. In …
Cast Aluminum vs. Die Cast Aluminum: The Differences Explained Read More »
Many people prefer to cook using an iron pot, believing it to be a healthy option that can supplement their iron intake. While it is not confirmed whether cooking with an iron pot actually supplements …
How to Choose Between Pig Iron Pot and Wrought Iron Pot? Read More »
I believe that many people are unaware of how to differentiate between pig iron and wrought iron. Allow me to explain the difference between the two. Nature difference 1. Pig iron Generally, pig iron refers …
Pig Iron vs Wrought Iron: The Differences Explained Read More »
There are over 100 types of materials that can be used for mold processing, including metals, plastics, inorganic non-metals, and wax. Related reading: Type of metal However, each material has its own specific purpose and …
24 Types of Metal Materials Commonly Used in Die Processing Read More »
The motor controller is an integrated circuit that actively controls the motor’s direction, speed, angle, and response time. Now, let’s discuss the difference between a motor controller and a motor controller and driver. 1. What …
Motor Controller vs. Driver: The Differences Explained Read More »
Production conditions and technical requirements Casting material: HT200. Casting shape: There are two bosses on the ground, with a hollow in the middle and an arc-shaped frame on top. The structure is shown in Figure …
Shaft Support Casting: Technical Requirements, Process Scheme and Specifications Read More »
The process of polishing stainless steel can be divided into two parts: grinding and bright dipping. The following is a summary of the two processes and methods: 1. Grinding The primary goal of grinding stainless …
Stainless Steel Mirror Polishing: Process, Method and Requirements Read More »
Industrial lubricants such as steam turbine oil, bearing lubricating oil, hydraulic oil, gear oil, machine tool lubricating oil, grease, metalworking fluid, textile lubricating oil, quenching oil, heat transfer oil, electrical oil, refrigeration oil, antirust oil, …
How to Distinguish Whether Industrial Lubricating Oil Has Deteriorated? Read More »
Cast iron is an iron-carbon alloy with a carbon content ranging from 2.5% to 4%, typically exceeding 2.11%. It is composed of several components, including iron, carbon, and silicon, and may also contain impurities such …
Types of Cast Iron: Classification, Grade & Application Read More »
Gear machining is a highly intricate process and requires the use of the right technology to achieve efficient production. Each stage of the production must be precise in terms of dimension. The gear machining cycle …
15 common types of vibration problems and their characteristic spectra including: imbalance misalignment eccentric rotor bent shaft mechanical looseness rotor friction resonance belts and pulleys hydrodynamic excitation flapping eccentric rotor electric motors gear failure rolling …
15 Types of Mechanical Vibration Problems & Symptoms Read More »
Whether it involves manual operations or equipment processing, an increasing number of sheet metal processing enterprises are now integrating fillet processing into their parts processing process chain. Rounding off the rough edges of parts is …
1. How to correctly select servo motor and stepper motor? The selection process primarily depends on the specific application. To begin, it is crucial to determine the nature of the load, including its orientation (horizontal …
21 Key Points About Servo Motor (Note to Engineers) Read More »
Differences of various motors 1. Differences between DC and AC motors Schematic diagram of DC motor Schematic diagram of AC motor Just as its name implies, a DC motor uses direct current (DC) as its power source, …
Motor Basics: Differences, Selection, Maintenance Read More »
Circuit breaker A low voltage circuit breaker, also known as an automatic switch or air switch, is used for infrequent on-off control in low-voltage distribution circuits. It can automatically disconnect a faulty circuit in the …
9 Common Knowledge About Low-Voltage Electrical Apparatus Read More »
Injection molding, also known as injection moulding, is a manufacturing method that involves injecting molten material into a mold to produce various products. The advantages of injection molding include fast production speed, high efficiency, automation …
Die casting is a metal casting process, which is characterized by applying high pressure to the melted metal by using the inner cavity of the mold. The mold is usually made of alloy with higher …
What is additive manufacturing? Additive manufacturing (AM), commonly known as 3D printing technology, is a rapid prototyping technology different from traditional material reduction manufacturing. Through digital three-dimensional scanning and layered processing of the model, with …
What Is 3D Printing? Everything You Need to Know Read More »
3D Printing (3DP) is a type of rapid prototyping technology, commonly referred to as additive manufacturing. It involves the use of adhesives, such as powder metal or plastic, to build objects through a layer-by-layer printing …
What is burr？ Regarding burr, let’s start by defining what burrs are. Burrs are tiny metal particles that form on the machined surface of a workpiece. These fine particles are created as a result of …
What Is Deburring? Principle, Types, How to Remove and Avoidance Measures Read More »
1. Status description GCr15 steel bearing ring is spheroidized and annealed after hot processing and forging, and the final heat treatment is quenching and tempering, so as to improve the strength and surface wear resistance …
GCr15 Steel Bearing Ring Press Open Fracture: Detection and Analysis Read More »
After 7305 hours of operation of a diesel engine in our company, cracks were found on the piston skirt of the third cylinder. To determine the cause of the cracking, we dissected the piston skirt …
Crack on Piston Skirt of Diesel Engine: Cause Analysis Read More »
1. Preface The camshaft is a crucial component in the valve train of an internal combustion engine. It is responsible for regulating the opening and closing of valves in accordance with a specific working sequence …
1. Preface Wind power is the most widely used and rapidly growing renewable energy technology. It has been adopted on a large scale globally. In 2019, China installed 25.74 million KW of wind power, accounting …
The Role of Frequency in Preventing the Cracking of Gear Ring Read More »
Quenching cracks are a common issue that can arise during heat treatment and have multiple causes. To effectively prevent these defects, it’s crucial to begin the prevention process during the product design stage. This involves …
Quenching Crack vs. Forging Crack vs. Grinding Crack: The Differences Explained Read More »
What is air bearing Bearing is a concept that most people are familiar with. The rolling bearing, which is commonly used, is probably the most recognizable. It is a crucial component of modern mechanical equipment. …
What Is an Air Bearing? (Difference With Ordinary Bearings) Read More »
Heat treatment principle Transformation of steel during heating C-curve The C-curve is a tool used for analyzing the transformation of carbon steel’s microstructure during cooling after it has been heated to form austenite. There are …
1. Overview The frequency of damage to induction-hardened gears during use is high, particularly for surface-hardened gears such as the second shaft gear of a shearer rocker arm and sun gears with a modulus of …
The material of the sun gear (see Fig. 1) is 8620RH, and the main chemical components are (mass fraction,%) WC = 0.18 ~ 0.23, WMn = 0.7 ~ 0.9, WNi = 0.4 ~ 0.7, WCr = 0.4 ~ 0.6, …
Heat Treatment Process of Sun Gear: Test and Analysis Read More »
The common surface quenching methods for gears include flame quenching, induction quenching, contact resistance heating quenching, and advanced laser quenching. By performing surface heating and quenching, a hardening layer can be created on the surface …
Surface Hardening of Gears: How Many Do You Know? Read More »
What is riveting? Riveting is a mechanical process that involves connecting multiple parts by applying axial force to a nail rod in a rivet hole of a part, thereby forming a nail head. It is …
At present, magnesium and its alloys are considered as the lightest metal structural materials. They offer several advantages such as low density, high specific strength and stiffness, high damping, good thermal conductivity, excellent machinability, stable …
Effect of Rare Earth Elements on Mechanical Properties of Magnesium Alloys Read More »
1. Preface Electroplating is a process of obtaining a relatively thin layer of other metals and alloys on the surface of some metals according to the principle of electrolysis. It is a method of attaching …
Chromium Plating of Chain Pin Shaft: Influencing Factors and Testing Methods Read More »
Service environment of aerospace materials Aerospace materials must not only be able to handle high stress and inertial forces, but also withstand impact and alternating loads caused by factors such as takeoff and landing, engine …
Aerospace Materials: Types, Selection and Applications Read More »
H13 steel is an important hot work die steel with excellent thermal strength, plastic toughness, oxidation resistance and thermal fatigue resistance. In order to improve the surface hardness, corrosion resistance, adhesion resistance and other properties …
Denitrification Treatment: Mold Life Increased by Nearly 30% Read More »
The significant disparity between the diameter and width/height of a gear ring can cause issues during heat treatment, leading to deviations in the roundness of the inner hole, flatness of the end face, and taper …
Heat Treatment Distortion of Gear Ring: How to Control It? Read More »
1. Carbon content in steel The carbon content has the greatest influence on the warpage distortion and volume distortion of gears during quenching. 2. Alloying elements in steel Alloy elements in steel have a significant …
12 Factors Affecting Distortion of Gear Heat Treatment Read More »
When selecting the gear material and its heat treatment, it is mainly based on the working conditions such as the transmission mode, load property and size, transmission speed and accuracy requirements of the gear. At …
Quenching is the most crucial stage in the heat treatment process and determines the internal quality and extent of distortion in the quenched components. The technology of quenching cooling has seen continual advancements with the …
How to Select Quenching Cooling Medium? (40 Year Experience Summary) Read More »
1. Preface When a stainless steel threaded component is assembled on site, the nut and bolt of the component are locked and cannot be screwed. Due to the limitation of installation space (see Fig. 1), …
Installation of Stainless Steel Thread Components: Failure Analysis and Prevention Read More »
1. Relationship between alloy elements and elastic modulus of steel The interatomic force depends on the metal atom itself and the lattice type, so the elastic modulus mainly depends on the nature of the metal …
5 Factors Affecting the Elastic Modulus of Materials Read More »
In the process of carburizing and quenching, thin-walled gears usually have plane warpage and elliptical deformation. During grinding, the uneven distribution of tooth surface allowance results in black skin and grinding steps on the tooth …
How to Control Carburizing and Quenching Deformation of Thin-Walled Gears? Read More »
Why explosion proof? Explosive Substances: Some flammable substances are produced in numerous production sites. Approximately two-thirds of underground coal mines contain explosive substances. In the chemical industry, over 80% of the production facilities contain explosive …
Explosion Proof Grade: Do You Know the Classification Standard? Read More »
