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成品金中杂质对物理性能影响初探
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作者 罗建平 杨锐 亢锦文 《冶金标准化与质量》 1999年第1期41-45,共5页
经过充分调研及大量实验验证,通过杂质对成品金物性影响的理论浅析,对成品金中杂质对物理性能影响进行了探讨。
关键词 杂质 成品金 物理性能 伴生
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“志在奉献”——墨江金矿人豪迈之歌
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作者 彭淑莉 《中国外资》 1997年第8期65-65,共1页
墨江金矿位于云南省墨江哈尼族自治县境内,地处哀牢山中南段,是一个大型原生金矿床,同时还是一个极具开发价值的大型风化硅酸镍、石棉、蛇纹岩等矿产的综合矿区。矿山开采于300年前,史称坤勇金矿,曾为清代七大金矿之一。现为县属国有岩... 墨江金矿位于云南省墨江哈尼族自治县境内,地处哀牢山中南段,是一个大型原生金矿床,同时还是一个极具开发价值的大型风化硅酸镍、石棉、蛇纹岩等矿产的综合矿区。矿山开采于300年前,史称坤勇金矿,曾为清代七大金矿之一。现为县属国有岩金矿企业,其主产品为成品金,副产品为银、硫、二氧化硅等。 展开更多
关键词 墨江 人豪 成品金 硅酸镍 哀牢山 原生矿床 大型风
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河南灵宝今年前10月产金279274两
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作者 公叶 《中国金属通报》 2004年第46期18-18,共1页
2004年1-10月份,河南省灵宝市国有黄金工业企业累计生产黄金279274两,与去年同期持平。其中成品金118959两。含量金160316两。今年前10个月。灵宝市国有黄金工业企业累计实现工业总产值326437万元,为年计划的118.1%。同比增长76.2%;实... 2004年1-10月份,河南省灵宝市国有黄金工业企业累计生产黄金279274两,与去年同期持平。其中成品金118959两。含量金160316两。今年前10个月。灵宝市国有黄金工业企业累计实现工业总产值326437万元,为年计划的118.1%。同比增长76.2%;实现销售产值320289万元,为年计划的118.2%,同比增长80.7%;实现利润17421.5万元。 展开更多
关键词 河南灵宝 工业 灵宝市 同比增长 年计划 销售产值 工业总产值 河南省 成品金
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加强乡(镇)村金矿的“三管理”
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作者 郭玉禄 《中国黄金珠宝》 1996年第3期27-29,共3页
加强乡(镇)村金矿的“三管理”郭玉禄乡(镇)村两级矿山星罗棋布,点多面广,在黄金产量上占有“半壁江山”,经济地位举足轻重,加强乡(镇)村两级矿山的管理具有十分重要的意义。改革开放以来,我国黄金生产迅速发展,出现了一大... 加强乡(镇)村金矿的“三管理”郭玉禄乡(镇)村两级矿山星罗棋布,点多面广,在黄金产量上占有“半壁江山”,经济地位举足轻重,加强乡(镇)村两级矿山的管理具有十分重要的意义。改革开放以来,我国黄金生产迅速发展,出现了一大批乡(镇)村金矿,为国家生产更多的... 展开更多
关键词 产品管理 矿产资源补偿费 生产 成品金 承包经营 国有矿山 管理站 矿山企业 精矿
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The "Overissuance of Currency" Statement Lacks Scientific Evidence
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作者 王国刚 《China Economist》 2012年第1期44-55,共12页
The "overissuance of currency" statement has been prevalent in China's economics and finance sector for many years, but it is an unscientific argument. Its theoretical basis is that GDP corresponds to currency issu... The "overissuance of currency" statement has been prevalent in China's economics and finance sector for many years, but it is an unscientific argument. Its theoretical basis is that GDP corresponds to currency issued by the central bank but overlooks the fact that what money in circulation really corresponds to is the aggregate price of traded goods (including commodities, labor and financial products). It also overlooks how fast money is circulated and the production and operation costs incorporated in commodities. Practically, this statement ignores the fact that the remainder of M2-MO in China is made up of various deposits whose direct function is substantially d^fferent Jbom that of currency. The underlying reason for China's huge sum of various deposits in M2 is that the proportion of consumption in GDP is decreasing and the investment rate is lower than the savings rate. It is natural for the M2 money supply to outnumber GDP in China. In essence, China's CPI growth is the result of price spikes rather than inflation. Accordingly, the major solution should be a combination offinancial policies and administrative measures rather than monetary policies. 展开更多
关键词 overissuance of currency scientific evidence money supply
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Modification of Paraffin Wax for Manufacturing Difficult-to-Form Green Compacts and Its Application in WC-Co Cemented Carbides
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作者 Li Yi Wang Jincheng +1 位作者 Ni Juan Shen Shaobo 《稀有金属材料与工程》 SCIE EI CAS 2024年第11期3064-3076,共13页
The production of deep well-shaped WC-Co cemented carbide blocks via industrial powder pressing remains a challenging technical problem,primarily due to the unsuitability of the forming agent.The forming agent paraffi... The production of deep well-shaped WC-Co cemented carbide blocks via industrial powder pressing remains a challenging technical problem,primarily due to the unsuitability of the forming agent.The forming agent paraffin wax was modified through four types of modifiers,including organic high-molecular-mass resins,plasticizers,surfactants and lubricants.The qualitative screening of resin types was explored and an orthogonal experiment involving the combination of these four paraffin wax modifiers was conducted to obtain an optimized quantitative ratio of modifiers.The results reveal that the insertion of the small molecule chain of resin into the interstitial spaces of paraffin wax crystals is likely a crucial factor for improving the compatibility between the resin and paraffin wax.Through orthogonal experiments,the optimized formulation for the forming agent is determined:100 parts of 58#paraffin wax,15 parts of EVA-2,4 parts of DPHP,4 parts of oleic acid amide and 2 parts of stearic acid.This optimized formulation is applied to industrial production at one Chinese company,and qualified deep well-shaped cemented carbide products are achieved,which contain 90wt%WC and 10wt%Co. 展开更多
关键词 WC-Co cemented carbide deep well-shaped products forming agent paraffin wax modifier resin screening modifier ratio optimization
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