Maanshan Fufeng Machinery Technology Co., Ltd.  

Add attention0

Maanshan Fufeng Machinery & Technology Co., Ltd. is a company integrating development, research, manufacturing, and production. We specialize in producing wear-resistant parts for German EIRICH mixing machines, sand-mixing machine components, kneading machine parts, and mixer accessories—wearing products tailored for the environmental protection, glass, refractory, casting, and pelletizing industries. Our company boasts welding components and a sheet-metal workshop equipped with automatic straight-seam welding machines, lathes, milling machines, imported machining centers, and other advanced equipment. As many foreign mixing and sand-mixing machines continue to enter the market, some imported equipment urgently requires replacement of worn parts, causing significant trouble for users. First, imported spare parts are extremely expensive; second, delivery times for these imported parts are excessively long, making it impossible to offset losses. To address domestic users’ concerns, our company has developed a range of spare parts for foreign equipment, which have received high praise from customers. Our company has nearly ten years of experience in casting processing and manufacturing wear-resistant parts for well-known brands. In collaboration with the Metallographic Research Center at Shanghai universities, we have jointly developed new types of mixing machine impellers, scrapers, blades, blade holders, blades, discharge arc scrapers, bottom liners, wall liners, gear rings, and more. All these parts are made from high-alloy materials, with tungsten carbide alloy inserts welded in place. Our wear-resistant parts cover a wide range of sizes and applications, featuring fully adaptable performance. We select domestically recognized alloy materials and employ scientific and reasonable heat treatment processes that enhance material microstructure and improve hardenability. This ensures that components such as liners, impellers, blades, blade holders, and scrapers achieve an optimal balance of strength, toughness, and wear resistance, keeping our product quality always one step ahead. Our company consistently strives to enter the market with high-quality products and excellent service, guided by the corporate spirit of “Confidence, Self-Improvement, Higher Standards, Better Quality.” We sincerely welcome and thank both new and existing customers at home and abroad for joining us in creating a bright future together. Hard metal alloys are highly productive tool materials made by mixing high-melting-point, high-hardness metal carbide powders with binders and then pressing them into various desired shapes using powder metallurgy techniques. The welding of hard metal alloys to steel is mainly used for cutting tools, blades, dies, mining tools, and various components where wear resistance is the primary performance requirement. These alloys offer significant advantages: they save large amounts of precious metals, reduce production costs, and extend component lifespans. Hard tungsten alloy tools have been widely adopted across various industrial sectors and have achieved remarkable results. Our company sets high standards for wear-resistant steel plate quality in the wear-resistant industry: the deposited weld hardness reaches HRC63; the chromium content typically stands at 28%, ensuring high wear resistance even under high-temperature conditions of 500–600°C, with the tempered hardness remaining stable at HRC63. The wear resistance is more than 1.5 times that of low-carbon steel plates. Our wear-resistant steel plates can be machined and, depending on the thickness of the base plate, can be rolled into arcs with varying curvatures. Moreover, our company possesses strong machining capabilities and can provide finished wear-resistant liners according to customer requirements. Our ultra-wear-resistant composite ceramic mixing tools were developed specifically to address severe wear problems in mixing equipment used in industries such as environmental protection, casting, glass manufacturing, and refractory materials—such as raw material mixers and kneading machines. Drawing on the latest technology from the Three Gorges and Xiaolangdi hydroelectric power stations in the Yellow River, where turbine blades resist sand erosion, we’ve successfully developed an ideal replacement for commonly used high-chromium cast iron, high-manganese steel, embedded hard metal alloys, and deposited wear-resistant layers for scrapers and mixing paddles. These tools are widely applicable to mixing and kneading operations in industries including environmental protection, casting, refractory materials, glass manufacturing, building ceramics, sand casting, and power plant dust removal. Testing conducted by Luoyang Glass Co., Ltd.’s raw material plant on forced-action mixers manufactured by Germany’s EIRICH (DZV29–300L and 4000L models) and domestically produced NQH3000 models (with maximum linear speeds reaching 18.2 meters per second) confirmed that their service life exceeds 5,000 hours—16 times longer than high-manganese steel, 12 times longer than high-chromium cast iron, and 2.3 times longer than hard metal alloys under the same conditions. Our company uses oxy-acetylene flame brazing, where the flame core temperature reaches around 3,000°C. During copper brazing heating, avoid directly spraying the flame core onto the hard metal alloy to prevent overheating and cracking. Before brazing, first arrange the brazing flux, copper filler metal, and hard metal alloy sequentially. Use a reducing flame to preheat the base part near the bottom of the hard metal alloy. When the preheating temperature reaches 700–800°C and the flux begins to melt, then heat the hard metal alloy piece and surrounding weld seams from above until the copper filler metal melts into a bright liquid state and seeps along the side weld seams onto the surface. At this point, raise the flame slightly so that the flame tail continues to heat around the weld seam, maintaining the brazing temperature. Simultaneously, use a metal rod to move the blade back and forth in its groove 2–3 times, adjusting and pressing the blade firmly while removing excess filler metal and slag. After removing the slag, place the tool into an insulation box or insulating medium for 2–3 hours to allow it to cool slowly. Tools that have undergone stress-relief tempering after slow cooling will achieve even better results. The tempering temperature is about 300°C, followed by holding for 6 hours before allowing the tool to cool naturally to room temperature in the furnace.