Su Shizhen: EFD Group is one of the world's largest multinational joint-stock companies producing induction heating equipment. It is headquartered in Germany and has production facilities in Norway, Germany, France and India. Effort Induction Equipment (Shanghai) Co., Ltd. is a wholly-owned company established by EFD Group in Shanghai in June 2001. It introduces EFD's most advanced induction heating manufacturing technology and advanced management mode. It is the EFD Group in China and Asia and even in Asia. The world provides one of the most important bases for the production, sales and technical services of induction heat treatment equipment.
Attitude towards the Chinese market
Su Shizhen: After the baptism of the short-term economic crisis in the first half of 2009, China's automobile manufacturing industry revived at an alarming rate in the second half of 2009, and broke through the historical sales record of 13 million vehicles in an unstoppable manner. According to the latest statistics, China's automobile production capacity plan will exceed 20 million units in 2010. This development speed is a miracle in the history of world automobile development, but at the same time, this is an unprecedented development for China's auto parts manufacturers. Opportunity.
In recent years, with the dramatic increase in the level of induction heating technology in the world, more than 200 parts in a car have begun to use induction heating technology for heat treatment. More than half of the parts have begun to use induction hardening and tempering. Processes, these parts vary in shape and size, and the heat treatment is quite difficult, requiring equipment suppliers to have advanced technology and rich experience. Yifudi has always been at the forefront of the world's advanced technology in the development and manufacture of induction heating technology, especially in the heat treatment of automotive parts. The machine tools are mainly divided into horizontal and vertical types. They can also be divided into single-station, double-station, rotary table and other forms. In addition, heat treatment production lines that are integrated with quenching and tempering are also available. Conveyor lines and robots can also be integrated into other automated production lines. Therefore, EFD has a variety of proven solutions for handling various simple or complex parts, or heat treatment of highly technical parts.
Solution and technical features
Su Shizhen: Below, a brief introduction to the application of EFD induction hardening technology on several important automotive parts is given.
The heat treatment of the steering rack in the steering system of the automobile is one of the most critical processes in the manufacturing process of the rack. The quality of the heat treatment is directly related to the life safety of the traveling vehicle and the occupant, and the rack is broken due to the heat treatment problem. It can lead to a vicious traffic accident, so all the rack manufacturers never dare to take care of the heat treatment process of the rack. EFD according to the needs of users, combined with decades of experience, can provide two kinds of completely different processing schemes, conductive quenching and scanning quenching, to quench the different parts of the tooth, back and stem of the rack. EFD's rack-induced quenching and tempering technology provides a strong technical guarantee for domestic rack manufacturers. At present, Yifudi Shanghai has provided dozens of various rack quenching and tempering equipment for domestic important gear manufacturers such as Shanghai ZF and Delphi. EFD Shanghai has become the RDX Group Rack Quenching Technology R&D. And manufacturing base.
The transmission system of the automobile is an important component of the torque of the automobile transmission. The shape of the parts is complex and the size is variable. There are many parts requiring induction hardening, such as the transmission shaft, the universal joint, the bell shell, and the three-column shell. In the case of star-shaped sleeves and worm gears, the technical requirements for induction hardening of such complex shaped workpieces are often extremely high. Therefore, the controllability, repeatability and stability of the inductive power supply equipped with the equipment are particularly high. At the same time, the designers and manufacturers of sensors require a wealth of modern design concepts and process experience. Yifudi Induction Equipment (Shanghai) Co., Ltd. has an experienced design and manufacturing team of machine tools and sensors. With their joint efforts, EFD perfect solutions and high quality products in just a few years. In the past, it provided dozens/set of induction heat treatment processing equipment for well-known domestic transmission equipment manufacturers such as Wanxiang Group and Natiefu, and shared the advanced technology of EFD induction heating with them.
The engine is the heart of the car, and the crankshaft is the core part of the engine. It requires good fatigue and wear resistance. At the same time, the crankshaft should have high load carrying capacity at low speed torsion. Heat treatment plays an important role in obtaining these characteristics during the manufacturing process of the crankshaft. Induction hardening and tempering technology, as one of the heat treatment technologies of the crankshaft, has low processing cost and good characteristics after processing, and is increasingly favored by crankshaft manufacturers, but because of its high technical content, especially the crankshaft roundness induction. Quenching technology has always been one of the problems that plague the crankshaft induction heat treatment industry. As one of the few companies in the world to master the crankshaft fillet quenching technology, EFD has accumulated decades of manufacturing experience in this field and played an important role in the development of the domestic crankshaft manufacturing industry.
Sanding Belt
Abrasive belt is a belt-shaped tool that can be ground and polished, which is made by bonding abrasives to flexible materials such as paper and cloth with a binder. It is a main form of coated abrasives. Its basic composition is: base material, abrasive and binder, collectively called the three elements of abrasive belt. Abrasive belt is the main tool of the sanding process. Abrasive belt grinding is a soft grinding method, which is a compound processing abrasive tool with multiple functions of grinding, grinding and polishing.
Abrasive tools are tools for grinding, grinding and polishing. Most of the abrasives are artificial abrasives made of abrasives and bonding agents, and natural abrasives are also directly processed from natural ore. In addition to being widely used in machinery manufacturing and other metal processing industries, abrasive tools are also used in the processing of non-metallic materials such as food processing, paper industry and ceramics, glass, stone, plastic, rubber, and wood.
Abrasives are divided into natural abrasives and artificial abrasives. All materials that can be used for grinding or grinding in nature are collectively referred to as natural abrasives.
Natural abrasives mainly include: natural corundum and garnet
Artificial abrasives mainly include: white corundum, brown corundum, silicon carbide, zirconium corundum, synthetic diamond, cubic boron nitride.
How to choose a suitable abrasive belt and further improve the smoothness and flatness of sanding is a very important issue in the use of abrasive belts. Due to the differences in the three major components of abrasive belts and various characteristic factors, abrasive belts can be divided into many varieties according to different grinding objects, grinding conditions and grinding requirements. The following is the classification of abrasive belts according to abrasives. Different abrasive belts are suitable for different products. The following types of belt operations are: automatic grinding, mechanical hand grinding, desktop grinding, and manual tool grinding.
Types of abrasive belts (according to abrasives):
1: Accumulated abrasive belt
Application: Widely used in polishing various non-alloy, low-alloy and high-alloy steel, stainless steel, brass, bronze and other non-ferrous metals. Good self-sharpening, long service life, uniform grinding volume and uniform surface roughness.
2. Brown corundum belt
Application: Widely used in metallurgy, machinery, shipbuilding, wood, building materials, textile printing and dyeing industries. Grinding and polishing of bamboo and wood products, decorative panels, stainless steel, non-ferrous metals and other complex surfaces. Fast cutting, heat resistance, long service life, efficient wear resistance.
3. Ceramic abrasive belt
Application: Widely used in grinding chromium steel, chromium-nickel steel, stainless steel, high-alloy steel, nickel-based alloy, titanium alloy, brass and bronze, etc., with good self-sharpening, strong grinding, and large removal of grinding materials.
4. Silicon carbide belt
Application: Widely used in the grinding and polishing of brass, bronze, titanium alloy, aluminum alloy, glass, ceramics, minerals, stone, rubber, and synthetic materials. The sand surface is sharp, with very high strength and grinding ability, suitable for grinding medium and high density plates. The bucky has strong tension and ultra-wide sub-tension, which can be used for ultra-large abrasive belts.
5. Zirconium corundum abrasive belt
Application: Widely used in the grinding and polishing of steel, alloy steel, cast iron and non-ferrous metals, medium load or heavy load powerful grinding. The rigid polyester fabric is resistant to strong tension and impact, has high abrasion resistance, and has excellent comprehensive cost performance.
We distributes and wholesales various brands of Bonded Abrasives , Abrasive Sanding Disc, Cutting Wheels , Abrasive Flap Disc, Flap Wheels , Flap Disc Backing Pad, Flap Disc Adhesive , and Surface Conditioning Product etc, and enjoy a high position among consumers.
Belt Sander Paper,abrasive sander belt,GXK51 sanding belt,Sanding Belt,Delta Belt Sander
Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jiadingabrasive.com