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Nodular cast iron nodular cast iron factory need to pay attention to what issues? - Company news -

by:XEX     2021-02-13
Nodular cast iron nodular cast iron factory need to pay attention to what issues? ( 1) Sulfur content of the original molten iron and other trace elements don't too high. If the liquid sulfur content of iron and other trace elements content is too high, you need more for the amount of nodularizer nodularizer or rare earth content is higher, so the cost of nodularizer will increase, and too much can cause more pulp are nodularizer, is not conducive to the stability of the casting quality. In the cross section of the rare earth content is too much, will be in the big easy generation fragmental graphite casting. ( 2) The stability of the spheroidizing treatment. Spheroidizing process is the key in the process of ductile cast iron production process, only the spheroidizing process stability, the quality of the castings can be stable. According to different products, different original iron liquid sulfur content, how much to join nodulizing agent, nucleating agent, etc. , all want to write wi and strictly implemented. ( 3) To avoid long waiting time. After spheroidizing inoculation, should immediately pouring. As the extension of time, the residual magnesium will be burning and inoculation effect will be a recession. ( 4) Avoid too high residual magnesium content. High residual magnesium content increases the casting shrinkage tendency, for nodular cast iron, the average residual magnesium content ( The mass fraction) Should be controlled in 0. 035% ~ 0. 045%, for high ni ductile iron, residual magnesium content should be controlled in 0. 06% ~ 0. 07%. ( 5) Higher requirements for the casting using good nucleating agent. Higher requirements for wind power, high iron parts, etc. , should choose the inoculation effect strong agent metal-stream ( If has the patent Ultraseed/Ce) 。 Characterized by a significant increase of graphite ball, and graphite ball roundness. Xin er, is located in the big city in the middle of * * * * * * - Entrance of wuhan city west, hanchuan textile industrial park, is one of the professional manufacturer of ductile pipe fittings and spare parts. Company's main: hanland pipe fittings, ductile iron pipe fittings, ductile cast iron, ductile iron pipes in 2004, the company invested nearly ten million yuan has introduced new factories and new levels of domestic EPS a vacuum mold production line, has formed four thousand tons scale, can provide users with in accordance with ISO2531 standard brick and various types of DN100 - various interfaces DN800mm of more than 3000 kinds of products, can also according to customer's need to produce all kinds of non-standard pipe fittings and accessories, the company integrating scientific research, production and service, may at any time to provide technical advice and on-site service. Company has all kinds of advanced testing equipment, well-equipped, advanced technology, in strict accordance with ISO9002 instruction system and Swiss SGSIS9002 quality system of organizing production, the production of ball pipes pieces, with its high strength, good toughness, excellent characteristics of high pressure resistance, corrosion resistance, with the essence of the iron pipe steel tube performance, is a traditional cast iron pipe of updated products, widely used in water, gas and liquid gas pressure conveying, now is in most provinces, the city's urban water supply, gas supply engineering has the close relationship between supply and demand, well received by users. Company commitment: to the management idea of honest credible, with 'started in user requirements, and finally customer satisfaction' for the purpose of the production and operation, in order to realize the users, enterprises, social three sides the goal of mutual benefit welcome patrons! Keyword: ductile iron foundry article source: http://www. hbtszz。 com/
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