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    • 4. 发明公开
    • 전해정련을 이용하여 저알파 방사선을 방출하는 주석 제조방법
    • 使用电解精炼法制备低铝低放射性放射性铅的制造方法
    • KR1020120051178A
    • 2012-05-22
    • KR1020100112476
    • 2010-11-12
    • 서울시립대학교 산학협력단덕산하이메탈(주)
    • 정재필추용철이현규이승진이왕구박준규
    • C25C1/12C25C7/06
    • Y02P10/236C25C1/14C25C7/06Y02P10/21
    • PURPOSE: A method for producing tin emitting low-alpha radiation by using electrolytic refining is provided to produce tin with high purity and low emission of alpha radiation within a short time. CONSTITUTION: A method for producing tin emitting low-alpha radiation by using electrolytic refining is as follows. Distilled water, H2SO4(Sulfuric Acid), SnSO4(Stannous Sulfate), a plating inhibitor, and a potential difference reducing agent are mixed in an electrolytic cell and electrolyte is obtained. An anode(130) composed of Sn and a cathode(140) composed of Ti are formed and washed. The anode and cathode are installed on first and second lead wires(123,124) connected to a micro current supply device(110) and electrolytically refined so that Sn is deposited from the anode to the cathode. The deposited Sn is separated from the cathode and washed to obtain Sn emitting low-alpha radiation.
    • 目的:提供一种通过电解精炼生产发射低α辐射的方法,以在短时间内产生高纯度和低辐射的α辐射的锡。 构成:通过使用电解精炼来制造发射低α辐射的锡的方法如下。 将蒸馏水,硫酸(硫酸),硫酸锡(硫酸锡),电镀抑制剂和电位差降低剂混合在电解槽中,得到电解质。 由Sn构成的阳极(130)和由Ti构成的阴极(140)形成并洗涤。 阳极和阴极安装在连接到微电流供应装置(110)的电解精炼的第一和第二引线(123,124)上,使得Sn从阳极沉积到阴极。 将沉积的Sn与阴极分离并洗涤以获得发射低α辐射的Sn。
    • 8. 发明公开
    • 진공정련을 이용하여 저알파 방사선을 방출하는 주석 제조방법
    • 使用真空精炼来放射低阿尔法放射性放射性药物的制造方法
    • KR1020120135656A
    • 2012-12-17
    • KR1020110054490
    • 2011-06-07
    • 서울시립대학교 산학협력단덕산하이메탈(주)
    • 정재필정도현쿠마산토시추용철이현규김철희
    • C22B25/08C22B9/04
    • C22C13/00C22B7/006C22B9/04C22B25/04C22B25/08
    • PURPOSE: A method for manufacturing tin with low alpha radiation using vacuum refining is provided to reduce alpha radiation from tin by removing most of foreign materials such as lead and bismuth. CONSTITUTION: A tin manufacturing method comprises the steps of: preparing tin(S110), washing the tin with hydrochloric acid(S120), washing the tin with acetone, ethanol, or distilled water and drying the tin(S130), washing a crucible, which is installed in a vacuum furnace, with hydrochloric acid and drying the crucible(S140), accommodating the tin in the crucible and inserting the crucible in the vacuum furnace(S150), and removing foreign materials with higher vapor pressure and lower boiling point than tin in the vacuum furnace(S160). [Reference numerals] (AA) Start; (BB) End; (S110) Preparing raw material tin; (S120) Dipping and washing tin in hydrochloric acid; (S130) Washing tin with acetone, ethanol, or distilled water and drying in nitrogen or air; (S140) Washing crucible in vacuum furnace with hydrochloric acid and drying in nitrogen gas; (S150) Inserting pretreated tin in crucible and putting crucible in vacuum furnace; (S160) Injecting steam into vacuum furnace and refining to remove foreign materials from tin; (S170) Cooling vacuum furnace to cool refined tin; (S180) Washing tin to remove other pollutant particles
    • 目的:提供一种使用真空精炼制造低α辐射锡的方法,通过去除大多数异物如铅和铋来减少锡的α辐射。 构成:锡制造方法包括以下步骤:制备锡(S110),用盐酸洗涤锡(S120),用丙酮,乙醇或蒸馏水洗涤锡,并干燥锡(S130),洗涤坩埚, 将其安装在真空炉中,用盐酸干燥坩埚(S140),将锡容纳在坩埚中并将坩埚插入真空炉(S150)中,除去蒸气压低沸点的异物, 锡在真空炉中(S160)。 (附图标记)(AA)开始; (BB)结束; (S110)准备原料锡; (S120)在盐酸中浸锡洗涤锡; (S130)用丙酮,乙醇或蒸馏水洗涤锡,并在氮气或空气中干燥; (S140)用真空炉中的盐酸洗涤坩埚并在氮气中干燥; (S150)将预处理的锡插入坩埚中并将坩埚放入真空炉中; (S160)将蒸汽注入真空炉中并精炼以从锡中除去异物; (S170)冷却真空炉冷却精锡; (S180)洗涤锡以除去其他污染物颗粒
    • 10. 发明授权
    • 비정질 및 발열 특성을 갖는 금속 도금막을 이용한 초경재료의 접합방법
    • 使用具有无定形和放热性能的金属镀膜的碳化物材料的结合方法
    • KR101776151B1
    • 2017-09-19
    • KR1020150108652
    • 2015-07-31
    • 덕산하이메탈(주)
    • 정재필이준형정도현임동욱
    • B23K20/02B23K20/16B23K20/00B23K35/02B23K35/40C25D7/06C25D21/12
    • B23K20/00B23K20/02B23K20/04B23K20/16B23K35/02B23K35/40C25D3/02C25D3/04C25D7/06
    • 본발명은제1금속염및 제2금속염을포함하는두 가지이상의금속염이포함된수계합금도금액을준비하는단계, 전극을상기수계합금도금액에침지시켜전해도금회로를구성하는단계, 상기전해도금회로를제어하는제어부에도금하고자하는상기금속염의환원전위값에따라, 25℃표준수소전극기준으로 +2V에서 -4.5V사이의전압또는그에상응하는전류값을입력하여상기전극에환원전위또는전류를인가하는단계, 상기금속염들의표준환원전위차이에의해제1 초경재료또는제2 초경재료의일면, 또는제1 초경재료및 제2 초경재료모두의일면, 또는상기제1 초경재료또는제2 초경재료의사이에배치될코어메탈의양면에적어도 2개층이상의다층비정질금속도금막을형성하는단계및 상기제1 초경재료및 제2 초경재료를상기다층비정질금속도금막이상기제1 초경재료와제2 초경재료사이에배치되어마주보는형태로배치하거나, 상기코어메탈을상기제1 초경재료와제2 초경재료사이에배치하고, 상기다층비정질금속도금막의발열특성이나타날수 있도록용융온도범위로가열하면서상기제1 초경재료와제2 초경재료를서로가압하여접합하는접합단계를포함하는초경재료의접합방법에관한것이다. 본발명에의하면, 초경재료들사이에금속도금막을형성하여초경재료및 공구강등을접합함으로써, 상대적으로낮은접합온도에서도우수한접합강도를나타내는접합부를형성할수 있으며, 용이한방법으로초경재료들을접합할수 있는효과가있다.
    • 本发明包括构成由浸渍阶段,即也可以含有两个或在电镀多种金属盐的量水性合金电极输送的电镀电路,所述水性合金包含所述第一金属和第二金属的盐,其中所述电解镀覆的步骤 取决于金属的盐的还原电位值,以在该控制单元被镀用于控制电路,25℃标准氢电极基础为+ 2V至与其对应的-4.5V的还原电位或电流在电极之间的输入电压或电流值 施加,关闭标准还原电势差金属盐第一硬质合金材料或碳化物材料的第二方面,或第一硬质合金材料和两个碳化物材料的第二表面,或向其中其中所述第一硬质合金材料或第二硬质合金材料 医生以形成在两侧的至少两层以上的多层非晶金属镀膜以被设置,并且其中所述第一硬质合金材料制成的芯金属,并且所述第一材料的第二硬质合金材料多层无定形金属镀膜和第二烧结碳化物材料 这被布置成设置在面对的形式,或在用熔融的温度范围内的第一个碳化物材料和第二放置在烧结碳化物材料之间,和多层非晶金属镀膜发热natanalsu第一碳化物加热芯金属 以及将材料和第二硬质合金材料彼此挤压和结合的结合步骤。 根据本发明,通过粘合或者通过形成金属膜涂覆的硬质合金材料之间等碳化物材料和工具钢,其可形成接头示出甚至在相对低的粘合温度的优异​​的粘接强度,并且能够以简单的方式接合烧结碳化物材料 有一个效果。