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硼铸铁作为一种优良的耐磨合金,已被广泛的用于制造各种耐磨件。现行硼铸铁加硼工艺大多为炉内投入B—Fe合金。由于B—Fe合金价格较贵,来源困难,因此,生产硼铸铁的厂家都在研究硼铸铁加硼工艺的新途径。近年来利用天然硼矿石熔制硼铸铁取得成功。这种加硼工艺虽然可以大幅度降低成本。但是,由于硼矿石在开采、运输等方面还存在问题,而且这种硼矿石又是生产硼酸、硼砂的主要原料,所以使该工艺的推广应用受到限制。日前,国内市场出现一种新材料一含硼生铁,价格较便宜,来源丰富,是铸造行业生产铸铁的理想材料。对此,我们进行了试验。含硼生铁的块度及重量与普通铸铁相同,断口呈白口,硬度较高。其含硼量为1％。它是东北工学院和丹东风城钢铁厂联合研制的新产品。是由硼镁铁矿研制而成。该工艺可直接用高炉分离硼铁,为含硼耐磨合金的生产又开辟了一条新途径。1.试验条件
Boron cast iron as an excellent wear-resistant alloy, has been widely used in the manufacture of various wear parts. The current boron cast iron boron process mostly into the furnace into the B-Fe alloy. As B-Fe alloys are more expensive and difficult to source, new manufacturers of boron cast iron are studying new ways to add boron to boron cast iron. In recent years, the use of natural boron ore melting boron cast iron success. Although this boron addition process can significantly reduce costs. However, due to the problems in mining and transportation of boron ore and the fact that the boron ore is the main raw material for producing boric acid and borax, the promotion and application of the process are limited. Recently, a new material, boron-containing pig iron, appeared in the domestic market with cheaper prices and rich sources, making it an ideal material for producing cast iron in the foundry industry. In this regard, we conducted a test. The mass and weight of boron-containing pig iron are the same as those of ordinary cast iron, with a white fracture at the fracture surface and a high hardness. Its boron content of 1%. It is a new product jointly developed by Dongbei Institute of Technology and Dandong Fengcheng Steel Works. It is made from borosilicate. The process can be directly separated from the blast furnace boron iron, boron-wear-resistant alloy production has opened up a new way. 1. Test conditions