The shrinkage hole and shrinkage defects in casting, by mechanical processing or X ray examination can be found, to save more difficult, also have occurred on the surface of the riser can be eliminated by placing. The shrinkage hole and…
Read the rest…

Factors affecting the mechanical properties of the high manganese steel with carbide, inclusions, chemical composition, grain size. Carbides, inclusions affects the mechanical properties of high manganese steel is mainly caused byElement, should be strictly controlled in the inspection process. Keywords:…
Read the rest…

Prepare and check before 1 smelting (1) must be detailed inspection equipment. The control over records, find and report the problems. Untreated shall blow. (2) check electrical, hydraulic, cooling water three system instrumentation are intact. (3) check the bus, water-cooled…
Read the rest…

Foundry industry called “foundry”, tidal sand pile of sand, over, foundry sand, molding quality of the casting is good or bad, is depends on this pile of sand process still has its vitality, many enterprises are still the master process….
Read the rest…

Inoculant exotic nuclei, promoting iron liquid continuous nucleation, keep the spheroidization effect. Breeding aims to promote the spheroidization of graphite particle stability, the entire park, small, dispersed, inoculant is the source of exotic nuclei. The commonly used FeSi75, due to…
Read the rest…

The problem of selecting the nodulizer, now mostly used is the rare earth magnesium alloy. Simply put, magnesium is pilling effect, it makes the C elements precipitation in liquid iron, the formation of fine particles as crystal nucleus. Rare earth…
Read the rest…

2 melting temperature Most of the circuit, the temperature conditions are good, even if the cupola, cupola with large spacing reasonable allocation of high pressure fan, even more than 3T/n furnace, high fixed carbon content of coke, the appropriate block,…
Read the rest…

Authors: Xie Rude On the mechanism of ductile iron and bred, the theory and practice of China has not left behind, to grasp the ball iron production technology from the overall situation, the product quality steadily improved the quality of…
Read the rest…

As the casting production big country, China’s total output of castings has been ranked first in the world for 9 consecutive years, not casting power, especially the foundry industry in China is still in the stage of high energy consumption,…
Read the rest…

China’s steel production is too large, the implementation of steel storage, whether in technology, market control or capital requirements, have great difficulty. Influenced by the macroscopical economy, domestic steel market from the beginning all the way down, a loss in…
Read the rest…