Three one Walter electric to develop wind power equipment
As we all know, fan complex structure, high manufacturing precision, a major part of the hub, shaft, gear box, a supporting frame, the rotary support and other key parts are needed for processing screw thread. "To do good work, must first sharpen his tools", tap as a weapon of metal thread processing, natural be one's unshirkable responsibility.
Part performance, materials challenges. "Tap selection is not easy, we pay a lot of effort." Three one electrical tool engineer Li Nan said. On the one hand, characteristics, core components of the wind turbine performance, determines the high request it to the tap is accurate, reliable and stable. In wind-driven generator rotor, rotor hub structure and driving system interface, from a functional perspective, it is closely connected with mechanical drive system, rotor force, all physical stress and torque are almost point in this part. Accordingly, the components of the load is very high, the absolute accuracy and stability and reliability of the machining process, machining can be for the normal operation of the defect free rotor hub is essential. In addition, gear box, spindle, supporting high demand thread processing has any one of the component frame and a rotary support of the corresponding. On the other hand, out of consideration, performance and cost of current, the key components of wind turbine (such as rotor hub) are chosen for production of nodular cast iron material, the high plasticity, high toughness and high strength characteristics of tap on the thread processing for the inner undoubtedly is a challenge.
Walter in many enterprises talent showing itself in a bid to. Three one electrical invited several tool manufacturing enterprises to participate in the bidding, Walter became the first batch of excellent cooperation suppliers. Of course, this does not mean that the relationship between Walter and the three one have since rock solid. As a highly valued quality enterprises, three one "quality changes the world" concept embodies every link in production practice. In the actual production, even produce the same workpiece and parts, three one electric will also choose different brand tools, process parameters, the comprehensive energy consumption, cost, technical support and service standards such as a full range of contrast. After the "harsh" in contrast, Walter eventually relying on product complete, accurate, reliable and economic characteristics of "talent showing itself". Li Nan said, "although the price of tap Walter looked than other manufacturers is higher, but the quality is very good, high processing efficiency, more reliable and durable, especially in high precision threading, two or three line brands to meet the technical indicators, we are choosing to Walter."
Walter Pratt series Screwtaps have been widely used in fan. In recent years, Walter Pratt (Walter Prototyp) series of products based on the characteristics of tap complete, accurate, reliable and economical, in each set of three one electrical fan shaft, wheel hub, gear box, a supporting frame, the rotary supporting parts, have left a thin "carve". Among them, Walter Pratt (Walter Prototyp) Eco CI, Paradur ® Paradur ® Eco ® - Plus / Prototex Eco HT, Eco Plus, Prototex ® Prototex ® X, PERT P tap products makes three one electrical impressed.
Are used in the core components of China domestic fan nodular cast iron material production conditions, perfect cutting this kind of product is much easier to be favored. At present, in order to cope with the relatively complex, harsh industrial environment, there are many brands of nodular cast iron, mechanical properties, physical properties of a wide range of. Most of the ductile iron castings such as the international organization for standardization of ISO1083 mainly in the production of non alloy state, this range includes high strength grades of tensile strength greater than 800 N/mm2, elongation rate of 2%; the other extreme is high plastic brand, its elongation is larger than 17%, the tensile strength can be as low as 370 N/mm2, at the same time, as the to meet the special needs of national development, a lot of Austenite Bainite Ductile Cast Iron, internationally known ADI, tensile strength of 1000N/mm2, thus, nodular cast iron material tensile strength of large span. "Paradur Eco - Plus / Prototex ® Eco HT is made from high performance of powder metallurgy high speed steel, used in tensile strength of about 200N/mm2 -- 1300N/mm2 chip and short chip material, even to the extreme of ductile iron grades also be nothing difficult."
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