Huzhou Nanxun Yintuo Special Material Technology Co., Ltd. specializes in the development and production of high-quality stainless steel seamless pipe and nickel-nickel alloys. One of the products we mainly promote is alloy steel seamless pipe, let's introduce it below.
(1) Melting: In the past few years, medium-carbon multi-element alloy steels have been smelted in 3t electric arc furnace, 2t power frequency furnace, 1.5t, 0.5t, 25t intermediate frequency electric furnace, and corresponding smelting processes are adopted for different melting equipment. Strict ingredient calculation in industrial production, timely deoxidation, degassing, and slag removal during smelting, and timely addition of various related elements. According to equipment conditions, the tapping temperature (generally 1560～1620℃) and pouring temperature (generally 1420~1480~) C).
(2) Casting: This steel has a high pouring temperature and a high refractoriness of the molding material. Different types of sand molds have been used in production, but the design of the pouring riser and the exhaust system must be reasonable, which is conducive to shrinkage and exhaust, and strict coordination. By operating technology, castings with good quality can be obtained. In order to overcome the influence of human factors on quality, we recently introduced the technology of El Ben Shinto Company, which adopts VRH method (vacuum hardening method) to produce, which further improves the size and surface shape of castings, and obtains products with more perfect internal and external quality.
(3) Heat treatment: Oil quenching and water quenching are used for general domestic low- and medium-alloy steels. This not only requires corresponding equipment, but also is greatly affected by human factors and unstable performance. Either it cannot be quenched, the hardness is not enough, and the wear resistance is poor; or the quenching stress is large, the tempering is not timely, cracks or cracks occur, and it cannot be used.
The medium-carbon multi-element alloy steel researched and produced uses specially designed simple and easy heat treatment equipment, which can be hardened by air cooling (with corresponding composition design), and then tempered in time to remove thermal stress and structural stress, and achieve expectations Metallographic structure and performance.
We are forging ahead on the ground, but we also watch the stars and ambitious ambitions. If you want to know more information, please contact us: nickel alloy seamless pipe and tube.