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Central South University Establishes a “Grand Ideological and Political Education” Practice-Based Talent-Development Alliance; University Professors Teach “Ideological and Political Education + Science” Classes to Middle School Students

Professor Song Min from the Institute of Powder Metallurgy at Central South University delivered a lecture titled “Powder-Based Material Forming: Powder Metallurgy and Patriotic Dedication” to students at Yali Yanghu Experimental Middle School, detailing the applications of powder metallurgy technology in everyday life.

2023-11-11

Warm congratulations on the official launch of the website of Chongqing Fanluhao Powder Metallurgy Co., Ltd.!

Warm congratulations on the official launch of the website of Chongqing Fanluhao Powder Metallurgy Co., Ltd.! Founded in 1987, Fanluhao is located at No. 17 Qiangwei Road, Yumachi Industrial Park, Nanan Tea Garden New Area, Chongqing Economic and Technological Development Zone, adjacent to the Jiangnan Interchange and benefiting from convenient surrounding transportation and well-developed supporting infrastructure. The company occupies a site of over 39,000 square meters, with a total building area of more than 30,000 square meters. It currently employs nearly 169 staff members, including over 30 mid- and senior-level technical, quality, and management personnel, among whom is one Lean Six Sigma Black Belt. The company is a specialized manufacturer of powder metallurgy products that integrates research and development, manufacturing, and sales, specializing in…

2020-02-07

General Characteristics of Transmission Gears

The tooth surface exhibits high hardness, with a Rockwell C hardness of 48–55, resulting in high contact strength and excellent wear resistance. The core retains the toughness achieved through quenching and tempering, providing good impact resistance and high load-carrying capacity. Gear accuracy can be improved by half a grade, reaching up to Grade 7. This type of gear is suitable for mass production applications, such as medium-speed, medium-load gearboxes in automobiles and machine tools. When using low-carbon steel, the process flow is: forging blank → normalizing → rough cutting → quenching and tempering → finish cutting → carburizing and quenching → low-temperature tempering → gear grinding. Accuracy can reach Grades 6 or 7. Commonly used materials include 20Cr, 20CrMnTi, 20MnB, and 20CrMnTo.

2019-12-12

The cause of transmission gear wear is

Transmission gears frequently operate under conditions of high rotational speed, heavy load, and continuous fluctuations in both speed and load. In addition to normal wear, factors such as poor lubricant quality, inadequate lubrication, improper driving practices, and incorrect meshing alignment during gear assembly can all lead to gear impact, poor tooth engagement, and jerky vehicle acceleration at start-up—each of which accelerates gear wear and damage. Furthermore, wear or deformation in other gear components or related parts—for example, wear in spline slots within gear bores, bearing wear, or spline shaft wear—and misalignment in clutch or drive-shaft assembly, as well as certain manufacturing defects such as non-uniform carburized layers or gear warping, can also hasten gear wear.

2019-12-12

Powder metallurgy parts are now widely used in a variety of machined components.

1. Powder metallurgy parts exhibit exceptionally high surface finish. 2. During machining, numerous process variables make it difficult to maintain consistency; powder metallurgy effectively addresses this shortcoming. 3. Another prominent feature of powder metallurgy is its ability to significantly reduce assembly costs by enabling the integrated manufacturing of multiple components into a single part. 4. Due to the controllable material density and the impregnation of a certain proportion of lubricating oil, powder metallurgy parts possess inherent self-lubricating properties, substantially enhancing their wear resistance. 5. When producing irregularly shaped parts, powder metallurgy demonstrates clear advantages: as a powder-based process, it is easier to manufacture, requires only minimal machining, achieves a raw-material utilization rate of over 99%, and is cost-effective. Like conventional mechanical parts, powder metallurgy components can also undergo various post-processing treatments, such as electroplating and heat treatment, on their surfaces. Consequently, powder metallurgy parts are now widely used in a broad range of mechanical components and subassemblies.

2019-12-12

Powder metallurgy has received particular attention in the automotive industry.

Powder metallurgy (PM) is a manufacturing process in which metal powders, or mixtures of metal and nonmetal powders, are compacted into desired shapes within a die cavity and then sintered and finished to produce powdered-metal mechanical components. It is a material- and energy-saving, low-investment, fast-responding, pollution-free, large-scale-production–friendly, chip-free, and highly efficient metal-forming technology that has been widely adopted in industries such as automotive, motorcycle, and agricultural machinery manufacturing, with particular emphasis in the automotive sector. In recent years, the use of PM processes to manufacture components for automotive powertrains has continued to grow, driven by the numerous significant and unique advantages of PM-made parts: reduced costs, enhanced performance, lighter weight, and environmental benefits. Powder metallurgy can produce materials and components with specific properties that cannot be obtained through conventional melting methods; moreover, the residual porosity inherent in PM parts imparts self-lubricating and sound-damping characteristics. Although one of the original goals of the PM industry was to eliminate all machining operations, this objective has yet to be fully realized—most PM parts are produced in a “near-net-shape” condition and still require finishing to achieve the required dimensional accuracy and surface finish. However, because the microstructure of PM materials differs from that of castings and forgings, their machinability also exhibits distinctive characteristics.

2019-07-05

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The company is a powder metallurgy products manufacturer integrating research and development, manufacturing, and sales, producing various types of powder metallurgy products.

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Chongqing Fanluhao Powder Metallurgy Co., Ltd.

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Telephone:18,680,768,600/13508301915

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Email:flhxsb@126.com

Address: No. 17, Qiangwei Road, Yumachi, Chayuan New Area, Nan’an District, Chongqing

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