2025-06-07
The bonding method of the coating and the influencing factors of the coating adhesion
1. Formation of adhesion of coatingsThe adhesion between the paint film and the substrate can be determined by mechanical bonding, physical adsorption, hydrogen bonding, chemical bonding, and mutual diffusion.2. The bonding method of the coating2.1. M…
2025-06-07
The refractory materials in the shell-making process of investment casting
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, and the other is the sanding material used to incr…
2025-06-04
Gear material heat treatment - Nitriding
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 gears at a certain temperature. Through nitriding, the …
2025-05-30
Logistics Knowledge- European Pallet (referred to as "Euro Pallet")
In the large-scale and multi variety transportation services, in order to improve turnover efficiency and enhance safety during transportation, we need to establish unified norms and standards to improve operational efficiency and facilitate mass prod…
2025-05-27
What tolerance grades can be achieved by kinds of machining process
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 determines the accuracy of dimensions. The national sta…
2025-05-23
What are the types of lubricants used in the process of wire drawing?
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 steel wire and the mold, reduce friction, lower ene…
2025-05-16
A detailed introduction to 10 methods for air tightness testing
For water and gas pipelines, vacuum chambers, etc., airtightness is an important indicator to ensure safe operation of equipment and achieve good process results, especially when there are flammable, explosive, corrosive, or toxic gases inside semicon…
2025-05-13
what is the go no-go gauge
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 developed GO NO-go gauges to inspect certain feature…
2025-05-09
box guideway or liner guide,Which is better for machine
We often hear that CNC machining centers are divided into box guideway and liner guide so when choosing a machining center, we will ask: Is box guideway better or liner guide better? What is the difference between the two?What is a box guideway? What …
2025-05-06
The role and hazards of N element in steel
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 strength and toughness, and help the birth of…
2025-04-30
Analysis of Anodic Oxidation Process
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 oxide film is formed on its surface. This oxide film …
2025-04-25
Analysis of Powder Metallurgy Gears
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, such as iron, steel, and alloys, depending on spec…
2025-04-22
Seven Methods to Avoid Part Deformation in Aluminum Alloy Processing
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 thin-walled and thin plate parts. In addition to improving…
2025-04-20
O-type sealing ring materials and applications
Sealing rings may seem very small in machinery, but they play a very important role in certain situations, especially in pneumatic and hydraulic systems. Different situations require different materials that can meet various properties such as heat re…
2025-04-18
Heat treatment of gear materials - carburizing and quenching
There are usually several methods for surface hardening treatment of gear materials,Including carburizing quenching, nitriding, induction hardening, and flame hardening, among which carburizing quenching is the most widely used method for gear surface…
2025-04-17
The role of carbon in steel
overviewCarbon 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 iron-based alloys exceeds 2.0% (excluding ferroal…
2025-04-17
Why is there a distinction between hot-rolled steel and cold-rolled steel？
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? 1The rolling of steel is mainly based on hot rolli…
2025-04-15
The role of Mo content in austenitic stainless steel
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 efficiency, and maintaining equipment cleanliness, improvi…
2025-04-15
Application reason analysis of low temperature steel
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 Fuhai have emerged, filling multiple gaps in China'…
2025-04-12
Stainless steel Basics | 300 series stainless steel
300 series stainless steel: in-depth analysis of characteristics, applications, and chemical compositionIn the field of modern engineering materials, stainless steel has become a key material in many industries due to its excellent corrosion resistanc…