China Shenzhen Perfect Precision Product Co., Ltd. company news

What is the function of galvanizing?

What is the function of galvanizing? Galvanizing is a surface treatment method that covers the metal surface with a zinc layer, usually applied to steel. The functions of galvanizing mainly include the following aspects: Anti-corrosion: Zinc has high corrosion resistance, so galvanizing can effectively prevent the underlying metal (usually steel) from rusting. This is important for metal structures used outdoors, exposed to moisture or corrosive environments, such as buildings, pipes, bridges, etc. Anti-oxidation: Zinc forms a dense oxide layer in the atmosphere and plays an antioxidant role. This oxide layer can block oxygen and moisture in the air and slow down the oxidation rate of the metal. Aesthetics: The surface of galvanized steel usually appears silver-white or blue-white, with good luster, giving the metal a good appearance. This is very important for some applications that require a better appearance (such as building materials). Maintenance: The galvanized layer can provide certain physical protection and slow down the speed of scratches, abrasion and other mechanical damage to the metal surface, thus extending the service life of the material. Solderability: Galvanized metal surfaces have good solderability for welding, which makes galvanized materials easier to handle during manufacturing and repair processes. It is important to note that while galvanizing provides some protection against corrosion, the zinc layer may become lost over time, especially in severely corrosive or high-temperature environments. Therefore, in environments with special requirements, other more corrosion-resistant coatings or materials may need to be considered.

2023

11/24

What is the role of sandblasting?

What is the role of sandblasting? Sandblasting is a surface treatment method that uses high-speed jets of abrasive particles (usually sand) to impact metal surfaces to clean, remove dirt, and improve surface quality. Its main functions include: Rust removal: Sandblasting can effectively remove rust, oxides and other corrosion products from metal surfaces. This is important for restoring the cleanliness and shine of the metal surface, while also helping to improve the metal's corrosion resistance. Cleaning dirt: Sandblasting can be used to clean oil, coating, paint, welding slag and other dirt on metal surfaces. This is very critical for subsequent painting, coating or welding work to ensure the effect of surface treatment. Improved surface quality: During the sandblasting process, the impact of abrasive particles can improve the quality of the metal surface at a microscopic level. This helps to improve the roughness of the surface and provide better adhesion for subsequent painting, spraying and other processes. Pretreatment process: Sandblasting is a pretreatment step for many metal surface treatment processes, such as spraying, electroplating, coating, etc. Sandblasting can make the surface easier to bond with coatings or other materials, improving adhesion. Remove scratches and blemishes: Sandblasting can remove some scratches, blemishes and unevenness from a metal surface, leaving it smoother and more even. Improve mechanical properties: For some metal parts that require mechanical processing, sandblasting can increase their surface hardness and strength and improve their mechanical properties. Overall, sandblasting is a versatile surface treatment method that works on a variety of materials, including metals, plastics, ceramics, and more.

2023

11/24

What is the function of stainless steel 316?

What is the function of stainless steel 316? Stainless steel 316 is a highly corrosion-resistant stainless steel material. Its main functions include: Corrosion resistance: Compared with stainless steel 304, stainless steel 316 contains more molybdenum, making it superior in corrosion resistance. It can withstand more corrosive media, especially in chloride environments, such as seawater, salt water, etc. Marine Engineering: Due to its excellent corrosion resistance, stainless steel 316 is often used in marine environments, such as manufacturing marine equipment, ship parts, seawater treatment equipment, etc. Chemical processing: Stainless steel 316 is widely used in the chemical industry, especially in pharmaceuticals, fertilizers, organic chemistry and other fields. Its resistance to acids and alkalis makes it ideal for use in chemical equipment. Medical Devices: Stainless steel 316 meets medical grade requirements and is often used in the manufacture of medical devices, surgical tools and equipment because of its corrosion resistance and biocompatibility. High-temperature environment: Stainless steel 316 has an excellent performance in high-temperature environments, so it is often used in high-temperature equipment, stoves, heat exchangers, etc. Food Processing: Stainless steel 316 is also widely used in the food processing industry, especially when contacting foods with higher salt content or during salting preparations. Nuclear industry: Due to its corrosion resistance, stainless steel 316 is sometimes used in some special environments in the nuclear industry, such as equipment in nuclear power plants. Shipbuilding industry: Stainless steel 316 is often used to manufacture ship parts, such as hulls, ship accessories, etc., to cope with seawater corrosion. Overall, the main role of stainless steel 316 is to provide reliable, corrosion-resistant materials in environments with higher requirements for corrosion resistance.

2023

11/23

Why doesn't stainless steel rust?

Why doesn't stainless steel rust? The reason why stainless steel is not easy to rust is related to its special chemical composition and surface treatment. The following are the main reasons why stainless steel does not rust easily: Presence of chromium: Stainless steel contains at least 10.5% chromium, which is the main source of its corrosion resistance. Chromium forms a thin, stable oxide film called chromium oxide. This oxide film prevents further oxygen and water contact, thereby preventing corrosion of the steel. Even if the surface is scratched, a new oxide film will form by itself under the action of oxygen, maintaining the corrosion resistance. Other alloying elements: In addition to chromium, stainless steel often contains other alloying elements such as nickel, molybdenum, manganese, etc. These elements also help improve corrosion resistance. Self-healing properties at high temperatures: When the surface of stainless steel is contaminated or slightly corroded, the self-healing properties at high temperatures allow the oxide film on the surface to repair itself and maintain its corrosion resistance. Surface treatment: The surface of stainless steel may undergo further treatments, such as polishing, pickling, etc., to improve its surface smoothness, cleanliness and corrosion resistance. Generally speaking, stainless steel can form a stable and unbreakable oxide film under certain conditions, which blocks the contact between oxygen and water, thus slowing down the corrosion process of steel. This allows stainless steel to maintain its appearance and performance over time in wet, corrosive environments. However, although stainless steel has good corrosion resistance, it is not absolutely stainless, and corrosion may still occur, especially under extreme conditions.

2023

11/23

Stainless steel properties

Stainless steel properties Stainless steel is a metal material with excellent properties. Its main performance characteristics include: Corrosion Resistance: Stainless steel has excellent corrosion resistance and can maintain its surface finish and performance in humid, corrosive, acidic and alkaline environments. This is mainly due to the oxide film formed by the chromium element, which prevents further corrosion. High-temperature stability: Stainless steel can maintain stable performance in high-temperature environments and is not easily deformed or loses strength. This makes it widely used in high-temperature equipment, stoves and other fields. Mechanical properties: Stainless steel has high strength, hardness and ductility and is suitable for various mechanical structures, parts and construction purposes. Electrical and thermal conductivity: Stainless steel exhibits good electrical and thermal conductivity, making it suitable for use in electronic equipment, electrical components, heaters, etc. Aesthetics: Stainless steel has a smooth surface, is easy to clean, has a modern feel and is beautiful, so it is often used in fields such as construction, home furnishings and decorations. Oxidation Resistance: Stainless steel is antioxidant and can resist oxidation and fading, maintaining its new appearance for a long time. Hygiene: Stainless steel has a smooth surface and is not prone to bacterial growth, so it has hygienic advantages in fields such as medical equipment, food processing and kitchen utensils. Processability: Stainless steel is easy to process and shape, and products of various shapes and sizes can be manufactured by cutting, welding, stamping, etc. Overall, the diverse properties of stainless steel make it a versatile material that is widely used in manufacturing, construction, electronics, medical, food processing, and many other fields. Different types of stainless steel can have some differences in performance, so it's important to choose the right stainless steel material for your specific application.

2023

11/23

What is the reason why stainless steel does not rust?

What is the reason why stainless steel does not rust? The main reason why stainless steel does not rust easily is that it contains chromium and forms an oxide film. The following are the reasons why stainless steel does not rust: The role of chromium: The main alloying element in stainless steel is chromium, which usually contains at least 10.5% chromium. The presence of chromium enables the formation of a dense and stable oxide film (Chromium Oxide) on the steel surface. This oxide film prevents direct contact between oxygen and water, thereby slowing down the corrosion process of the steel. Protection of oxide film: The oxide film is a transparent, thin protective layer that not only prevents the erosion of oxygen and water but also helps prevent the invasion of other corrosive substances. Even when the surface is slightly worn or scratched, a new oxide film can be quickly regenerated under the action of oxygen. Self-healing: When slight scratches or corrosion occur on the surface of stainless steel, the action of chromium and oxygen allows the oxide film to repair itself and maintain its corrosion resistance. Reinforcement of other alloying elements: Stainless steel often contains other alloying elements, such as nickel, molybdenum, etc., which can further improve corrosion resistance, especially in specific environments, such as seawater, acidic media, etc. Surface treatment: The surface of stainless steel may undergo special treatments, such as polishing, pickling, etc., to improve its surface finish and corrosion resistance. Generally speaking, the reason why stainless steel is not easy to rust is that its chemical composition and the oxide film formed on the surface provide an effective protective layer to prevent corrosion and oxidation of the steel surface. This allows stainless steel to maintain its appearance and performance over time in wet, corrosive environments.

2023

11/23

Is stainless steel corrosion resistant?

Is stainless steel corrosion-resistant? Yes, stainless steel has strong corrosion resistance, which is one of its main features. Here are some key reasons why stainless steel resists corrosion: Chromium: Stainless steel contains at least 10.5% chromium, which is the main source of its corrosion resistance. Chromium reacts with oxygen to form a dense oxide film (Chromium Oxide). This film prevents direct contact between oxygen and water, thereby preventing the corrosion of steel. Stability of the oxide film: The formed oxide film is a stable, non-dissolvable protective layer. Even when the surface is slightly worn or scratched, a new oxide film can be quickly regenerated under the action of oxygen. Self-healing: When slight scratches or corrosion occur on the surface of stainless steel, the action of chromium and oxygen allows the oxide film to repair itself and maintain its corrosion resistance. Other alloying elements: In addition to chromium, stainless steel often contains other alloying elements, such as nickel, molybdenum, etc., which can further improve corrosion resistance, especially in specific environments, such as seawater, acidic media, etc. Surface treatment: The surface of stainless steel may undergo special treatments, such as polishing, pickling, etc., to improve its surface finish and corrosion resistance. Overall, stainless steel exhibits excellent corrosion resistance due to its chemical composition and special oxide film structure, allowing it to maintain its appearance and performance over time in humid, corrosive environments. This makes stainless steel a commonly used corrosion-resistant material in many industries, including construction, chemicals, medical, food processing, and more.

2023

11/23

What is bent sheet metal?

What is bent sheet metal? Bending sheet metal parts are parts formed by bending thin sheet metal. This process is usually done on a press brake, which holds the metal sheet in position and then bends the sheet into the desired shape using an under or over punch. Such parts are commonly used in building machinery, electronic equipment, vehicles, buildings, and various other applications. The shape and size of bent sheet metal parts can be customized to specific design requirements, so they have a wide range of applications in the manufacturing industry. The production process of bending sheet metal parts involves the following steps: Design: Develop detailed drawings and specifications of sheet metal parts according to the design requirements of the product. Material selection: Select appropriate sheet metal materials, usually steel, aluminum, stainless steel and other materials. The specific selection depends on the use and performance requirements of the part. Cutting: Use cutting tools (such as shears, laser cutters, etc.) to cut metal sheets into desired shapes and sizes. Bending: Use a bending machine to bend the cut metal plate to form the geometric shape required for the design. Welding (if required): Some sheet metal parts may require welding to join components or add structural strength. Surface treatment: Surface treatment can be performed on bent sheet metal parts, such as spraying, plating, etc., to improve appearance, corrosion resistance and other properties. Bending sheet metal parts are widely used in various industrial fields due to their flexible manufacturing process, high production efficiency and relatively low cost.

2023

11/23

What is welding?

What is welding? Welding is a process of joining two or more metals or thermoplastic materials together by heating, melting or pressing them. This process involves melting part or all of two or more workpieces and then allowing them to cool, forming a strong connection. The main purpose of welding is to create a durable, strong enough connection to join disparate metal parts or components together. Welding can be applied to a variety of materials, including metals, plastics and composites. The welding process usually includes the following steps: Preparation work: Prepare the workpiece to be welded and ensure that its surface is clean and smooth to improve the welding quality. Select the welding method: Select the appropriate welding method based on the type of material, thickness and welding requirements. Common welding methods include arc welding, gas-shielded welding, laser welding, plasma welding, etc. Set welding parameters: Set parameters in the welding process according to specific conditions, such as current, voltage, welding speed, etc. Perform welding: Perform the welding process to join workpieces together through the application of heat, melting, or pressure. Cooling: Allow the welding area to cool down and allow the weld to solidify. Inspection and post-processing: Inspect the welding parts to ensure welding quality. Sometimes post-processing is required, such as grinding, polishing, heat treatment, etc. Welding is widely used in manufacturing, construction, aerospace, the automobile industry and other fields, and is an important means of connecting metal parts. Choose appropriate welding methods and materials according to different application needs and requirements.

2023

11/23

How is sheet metal bending done?

How is sheet metal bending done? Sheet metal bending is performed by using a bending machine, a piece of equipment specifically designed to bend and bend thin sheet metal. The following are the general steps for sheet metal bending: Design and preparation: First, detailed drawings need to be developed according to the design requirements of the part and appropriate sheet metal materials selected. Engineers typically calculate the angle of the bend, the location of the bend, and the required dimensions. Cutting: Use cutting equipment (such as shears, laser cutters, etc.) to cut sheet metal into the desired shape and size. This step is usually performed after the sheet metal has been prepared. Bending setup: Place the cut metal plate on the bending machine, making sure it is in the correct position. The operator will set the parameters of the bending machine, including the bending angle and bending position, according to the design requirements and the specifications of the bending machine. Secure the workpiece: Secure the metal plate to the bending machine using clamps or other fixtures to prevent movement or deformation during the bending process. Bending operation: Start the bending machine to perform the predetermined bending action. The bending machine bends the metal plate through downward punching or upward punching to form the required geometric shape. Inspection: After completing the bending, inspect the bent workpiece. Check whether the bending angle, size and shape meet the design requirements. Post-processing: As needed, perform post-processing work, such as deburring, polishing, grinding, etc., to improve the surface quality of the workpiece. Assembly and welding (if required): The bent part may need to be assembled with other parts, and other joining processes such as welding may be required. Sheet metal bending is a common metal processing method, suitable for manufacturing various metal parts and components, such as chassis, mechanical casings, electrical casings, etc. The bending process can provide complex-shaped metal parts and plays a key role in manufacturing.

2023

11/23

China Shenzhen Perfect Precision Product Co., Ltd. company news

What is the function of galvanizing?

What is the role of sandblasting?

What is the function of stainless steel 316?

Why doesn't stainless steel rust?

Stainless steel properties

What is the reason why stainless steel does not rust?

Is stainless steel corrosion resistant?

What is bent sheet metal?

What is welding?

How is sheet metal bending done?

CNC Turning Parts

CNC Milling Parts

CNC Turning Milling Parts

CNC Machined Aluminum Parts

CNC Stainless Steel Parts

Machining Plastic Parts

CNC Brass Parts