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除金属材料影响铸件质量之外,80%以上的铸件缺陷都是由于用砂不当引起的。然而,长久以来,“铸造用砂”在铸造产业链中并末受到应有的重视。随着铸造行业的快速发展,对铸造用砂在质量、检验及标准等方面提出了新的要求,同时随着经济多元化快速发展和对环境保护意识的不断加强,各地政府陆续制定出台了硅砂限采政策。双重挤压下,“小、散、乱、差”积重之下的砂产业如何冲出原有樊笼、顺应当今健康持续高效发展的潮流,急迫地需要相关各方合力破解。
In addition to the impact of metal materials casting quality, more than 80% of casting defects are caused due to improper use of sand. However, for a long time, “casting sand ” in the casting industry chain and deserve due attention. With the rapid development of the foundry industry, new requirements have been put forward on the quality, inspection and standard of foundry sand. With the rapid development of economic diversification and the continuous strengthening of environmental protection awareness, various local governments have successively formulated and introduced silica sand Limit mining policy. Under the double squeeze, how the sand industry under the weight of “small, scattered, chaotic and poor” out of the original cage, conform to the current trend of sustained and efficient development of health, urgently need all parties involved to crack.