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

Is stainless steel a metal material? Stainless steel is an alloy, a metal material, not a metal, because metal is a simple substance, and stainless steel is a mixture. Stainless steel refers to steel resistant to weak corrosive media such as air, steam, water, and chemically corrosive media such as acid, alkali, and salt. It is also called stainless acid-resistant steel. In practical applications, steel resistant to weak corrosion medium is often called stainless steel, and steel resistant to chemical medium corrosion is called acid-resistant steel. Due to the difference in chemical composition between the two, the former is not necessarily resistant to chemical media corrosion, while the latter is generally stainless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel.

What is the difference between stainless steel and clad steel? 1. The difference between the manufacturing process of stainless steel and clad steel Stainless steel is the abbreviation of stainless acid-resistant steel. Generally, it is made by adding chromium, nickel, and a small amount of molybdenum, titanium, nitrogen and other elements to ordinary steel. Composite steel refers to a composite material with two or more different steel materials combined by extrusion, explosive welding, or rail method, and different layers have different functions. It can be composited with carbon steel and carbon steel, or composited with non-metallic materials. Second, the difference between the cost and selling price of stainless steel and clad steel Stainless steel is an alloy, which has the characteristics of corrosion resistance, high-temperature oxidation resistance, and small thermal expansion coefficient. The cost and price are relatively higher. Composite steel is a composite material composed of two or three alloys. Usually, the surface is 304, with a layer of other materials in the middle, or three layers. The processing performance and rust resistance will be poor, and the cost and selling price will be lower. cheaper. 3. The difference between stainless steel and composite steel Stainless steel is most suitable for hospitals or other areas where sanitation is critical, such as food processing, catering, brewing, and the chemical industry, not only because it is easy to clean every day, sometimes using chemical cleaning agents, but also because it is not easy to breed bacteria. Composite steel is used in the production of fans, fire dampers, mufflers, etc. It is widely used in fan, HVAC and other fields.

Stainless steel and iron can be welded, because stainless steel also contains iron, so it can be welded with iron. Stainless steel products are now widely used because stainless steel will not rust, so the practicability is particularly high. Stainless steel and iron can be welded, but they cannot be welded in ordinary ways. You should choose argon arc welding. There will be many cracks in welding with ordinary methods, but this will not happen when welding with argon arc welding. Find a professional for welding, the welding point of the welding place will be stronger, and the use time is relatively longer. The stainless steel body can be welded, and the prerequisite is to choose the welding rod, basically choose a302 or a312, which can meet the welding between stainless steel and steel. However, if you choose an ordinary electrode, it cannot meet the welding conditions. During the welding process, you need to add a certain amount of flux or choose the right electrode or wire, and reach its melting point, so as to ensure that the metal materials are connected to each other.

Stainless steel is widely used in the manufacture of chemical equipment, food processing equipment, building materials and other fields; while iron is mainly used in the manufacture of steel, castings and so on.

Stainless steel has the characteristics of corrosion resistance, wear resistance, and high-temperature resistance. It has a beautiful appearance and is easy to clean, but its cost is relatively high; while iron is low in cost, but it is easy to rust, and its strength and hardness are low.

Machining includes manual machining and CNC (computer numerical control) machining. Manual processing means that people use their hands to control the foam or lathes, milling machines, drilling machines, grinding machines, tapping tools and sawing machines, etc. so that the processing work can be achieved. Suitable for simple and small batch production. CNC machining is a process in which mechanics use a wide range of computer-aided machines to complete various machining tasks. The equipment mainly includes CNC milling machine or CNC machining center, a CNC lathe or CNC lathe, a CNC grinder and so on. Today, most machine shops are equipped with CNC or computer numerical control machines and technology. A CNC machine converts the position of the workpiece on the X, Y, and Z axes into programming language by programming in the G code language and some software. Then, the controller of the CNC machine guides the axis of the machine through the code language, so that the workpiece is shaped into a certain shape. Precision-machined parts are then obtained. CNC machining is suitable for mass production and complex mechanical parts. CNC machines have many advantages over manual machining, and they create many advantages in the first place. They can run faster and save a lot of time. CNC machines can produce sound parts in minutes or even seconds, whereas skilled mechanics or artisans would normally spend hours making parts on manual machines. Because parts or components manufactured by CNC machines can run more efficiently and require less labor, parts or components with tight tolerances and beautiful surface finishes can be obtained at a lower total cost. CNC machine tools can also meet high standards of precision machining requirements. High tolerance requirements for +/- 0.005 MM or higher.   CNC machining in China has developed very rapidly in the past 30 years. To date, there are more than 40,000 companies engaged in various machining operations, totaling 3 million machines and more than 9 million people engaged in processing activities. China has long been the second largest manufacturer after the United States. In particular, processing is very dynamic in China's Pearl River Delta and Yangtze River Delta regions. Many of the very best and largest machinery manufacturing companies are based in the Pearl River Delta region cities such as Shenzhen, Dongguan and Guangzhou. They withdrew from the Chinese market very early and gained a good reputation for low prices, good quality, and high tolerance.

Numerical control technology originated from the needs of the aviation industry, in the late 1940s, an American helicopter company proposed. The initial idea of CNC machine tools, in 1952, the Massachusetts Institute of Technology developed a three-dimensional CNC milling machine. This type of CNC milling machine has been used for machining aircraft parts in the mid-1950s. In the 1960s, numerical control system and programming work is increasingly mature and perfect, numerical control machine tools have been used in various industrial sectors, but the aerospace industry is always the largest user of numerical control machine tools. Some large aviation factories are equipped with hundreds of CNC machine tools, mainly cutting machine tools. The parts processed by NUMERICAL control include integral panels, girders, skins, compartments, propellers, aero-engine casing, shafts, disks, blade mold cavities and special cavity surfaces of liquid rocket engine combustion chambers, etc. At the beginning of the development of CNC machine tools, CNC machine tools with continuous trajectory are mainly controlled by continuous trajectory. Continuous trajectory control, also known as contour control, requires the tool to move according to the specified trajectory relative to the parts. After the development of point control CNC machine tools. Point-position control refers to the movement of the tool from one point to another, so long as it reaches the target precisely in the end, regardless of the movement path.

The aluminum extrusion process is very popular in small batches or batch production. When we make some machinery parts in the aluminum extrusion process, we often encounter customer consultations like this. The finished aluminum parts often very easily break. Many customers are troubled by this problem. We have summarized our experience in processing aluminum alloy CNC machining for nearly 20 years to give some solutions and suggestions for this problem. How to control the hardness of the 6063 aluminum profile, and how to prevent the hardness of the 6063 aluminum extrusion from being low? Today we will introduce how to protect aluminum extrusion. First of all, the 6063 aluminum extrusion frame can not be too dense, there must be a gap between the material, especially the small material and thick material interval which are not ventilated, and the spacing between the pipe material and the small material and the plate material is larger. When the pipe material is placed below, it is advantageous for the aging cycle to supply air. Secondly, 6063 aluminum extrusion aging insulation, in strict accordance with the process requirements for aging, insulation time should be appropriate, beware of under-aging or over-aging, resulting in insufficient hardness. Once again, the 6063 aluminum extrusion should be installed separately from other alloys before the furnace is installed, so as to ensure effective aging. Due to the fact that the production is really the same as the furnace, the special alloy process is used for aging.   Finally, in the setting and control of the 6063 aluminum extrusion aging furnace temperature, usually, there is a certain error between the aging furnace temperature and the aging furnace surface temperature. When setting the table temperature, it should be set according to the actual temperature of the furnace, so the aluminum extrusion Pressure technicians should pay close attention to fluctuations in the aging furnace temperature. The 6063 aluminum extrusion produced by extrusion has low hardness before aging and cannot be used as a finished product. Therefore, in general, 6063 aluminum profiles must be aged to increase strength.

How are the common aluminum profiles manufactured? Let's discuss this issue together: Industrial aluminum profiles refer to aluminum substances using different cross-sectional shapes got following hot-melting and extrusion utilizing aluminum sticks. At the same time, industrial aluminum profiles possess many different classification methods based on the program and metal composition. Let's offer you a brief introduction. According to different alloy compositions, aluminum profiles are divided into: 1. Anodized aluminum profiles. 2. Electrophoretic-coated aluminum profiles. 3. Powder-coated aluminum profiles. 4. wood grain transfer type aluminum profiles. 5. planed aluminum profiles. Aluminum CNC Machining can be offered for you from us. We have kinds of Aluminum CNC Machining Services with high quality. If you need, welcome to contact us.

How are the common aluminum profiles manufactured? Let's discuss this issue together: Industrial aluminum profiles refer to aluminum substances using different cross-sectional shapes got following hot-melting and extrusion utilizing aluminum sticks. At the same time, industrial aluminum profiles possess many different classification methods based on the program and metal composition. Let's offer you a brief introduction. According to different alloy compositions, aluminum profiles are divided into: 1. Anodized aluminum profiles. 2. Electrophoretic-coated aluminum profiles. 3. Powder-coated aluminum profiles. 4. wood grain transfer type aluminum profiles. 5. planed aluminum profiles. Aluminum CNC Machining can be offered for you from us. We have kinds of Aluminum CNC Machining Services with high quality. If you need, welcome to contact us.