公开(公告)号：US6056834A

公开(公告)日：2000-05-02

申请号：US101346

申请日：1998-06-30

申请人： Kohei Kubota ,  Takashi Ogami ,  Tsutomu Sato ,  Koichi Sato ,  Mitsuharu Hoshiya ,  Yoichi Nosaka

发明人： Kohei Kubota ,  Takashi Ogami ,  Tsutomu Sato ,  Koichi Sato ,  Mitsuharu Hoshiya ,  Yoichi Nosaka

IPC分类号： C22C1/02 ,  C22C1/03 ,  C22C23/02 ,  G01N25/06 ,  C22F1/06

CPC分类号： C22C1/02 ,  C22C1/03 ,  C22C23/02

摘要： A sample is taken out of a molten magnesium alloy, the cooling curve of the sample during solidification is measured, the content of the aluminum component in the sample is determined by the use of the crystallization temperature of a phase appearing in the cooling curve, together with cooling curves, and if the results of bath analysis show the components to deviate from the standard values and target values, an aluminum-manganese master alloy, aluminum or magnesium is added to the molten magnesium alloy to adjust the components to an appropriate amount of aluminum or an appropriate iron/manganese ratio, whereby a magnesium alloy is produced.

摘要翻译： PCT No.PCT / JP97 / 04284 Sec。 371日期1998年6月30日第 102（e）1998年6月30日PCT PCT日期为1997年11月15日从熔融镁合金中取出样品，测量固化时样品的冷却曲线，样品中铝成分的含量由 使用冷却曲线中出现的相的结晶温度以及冷却曲线，如果浴液分析结果显示组分偏离标准值和目标值，则铝锰母合金，铝或镁 加入到熔融镁合金中以将组分调节至合适量的铝或适当的铁/锰比，由此生产镁合金。

公开(公告)号：US06460602B2

公开(公告)日：2002-10-08

申请号：US09826007

申请日：2001-04-05

申请人： Kohei Kubota ,  Yoichi Nosaka ,  Seiichi Koike ,  Kazuhiro Washizu ,  Kazuo Kikawa

发明人： Kohei Kubota ,  Yoichi Nosaka ,  Seiichi Koike ,  Kazuhiro Washizu ,  Kazuo Kikawa

IPC分类号： B22C300

CPC分类号： B22C3/00 ,  B22D21/007

摘要： A metallic mold-casting method excellent in the resistance to penetration is herein disclosed and the method comprises the steps of forming a coating layer by applying a mixture comprising at least one member selected from the group consisting of high melting metals, ceramic materials and graphite, and an aqueous surfactant solution or low boiling liquid oils and fats to at least part of the surface of a metallic mold on its cavity side, then applying heat to the coated portion to thus adhere the mixture to the inner surface of the mold, and thereafter repeatedly casting a magnesium alloy in the metallic mold provided with the coating layer. The metallic mold-casting method permits the metallic mold casting of magnesium alloys with good resistance to penetration and this accordingly leads to the production of a cheap and high quality cast magnesium alloy product.

摘要翻译： 本文公开了耐渗透性优异的金属铸造方法，该方法包括以下步骤：通过施加包含选自高熔点金属，陶瓷材料和石墨中的至少一种的混合物形成涂层， 和表面活性剂水溶液或低沸点液体油和脂肪在其空腔侧的金属模的表面的至少一部分表面，然后向涂覆部分施加热量，从而将混合物粘附到模具的内表面，此后 在设置有涂层的金属模具中重复铸造镁合金。 金属铸造方法允许镁合金的金属模具铸造具有良好的耐渗透性，因此导致生产廉价和高质量的铸造镁合金产品。

公开(公告)号：US06467527B1

公开(公告)日：2002-10-22

申请号：US09586760

申请日：2000-06-05

申请人： Kohei Kubota ,  Koichi Satoh ,  Masaru Yamamoto ,  Yoichi Nosaka ,  Yasuhisa Goto ,  Takeshi Doi

发明人： Kohei Kubota ,  Koichi Satoh ,  Masaru Yamamoto ,  Yoichi Nosaka ,  Yasuhisa Goto ,  Takeshi Doi

IPC分类号： B22D2709

CPC分类号： B22D17/08 ,  B22D21/007

摘要： A method for die-casting a magnesium alloy comprises the step of casting a die cast product free of any hot tearing, shrinkage tearing and shrinkage cavity starting from a magnesium alloy comprising i) 1 to 10% by weight of aluminum; ii) at least one member selected from the group consisting of 0.2 to 5% by weight of a rare earth metal, 0.02 to 5% by weight of calcium and 0.2 to 10% by weight of silicon; and iii) not more than 1.5% by weight of manganese, and the balance of magnesium and inevitable impurities, using a cold chamber type die-casting machine, wherein a) the temperature of the molten magnesium alloy is maintained at 650 to 750°C.; b) the charging velocity of the molten metal is set at {fraction (1/100)} to {fraction (10/100)} second; and c) the intensified pressure after the charging is set at a level of not less than 200 kgf/cm2. Thus, a die cast product free of any hot tearing, shrinkage tearing and shrinkage cavity can be produced by appropriately specifying injection conditions, mold conditions, conditions for melting a magnesium alloy and mold plan in the cold chamber type die-casting machine, or by appropriately controlling the temperature of the molten metal from the molten metal-accommodating pot to the gate portion of the machine.

摘要翻译： 压铸镁合金的方法包括以下步骤：铸造不含任何热裂纹，收缩撕裂和收缩空腔的压铸产品，该镁合金包括：i）1至10重量％的铝; ii）选自0.2至5重量％的稀土金属，0.02至5重量％的钙和0.2至10重量％的硅中的至少一种; 和iii）使用冷室式压铸机不超过1.5重量％的锰，剩余的镁和不可避免的杂质，其中a）熔融镁合金的温度保持在650-750℃ 。 b）熔融金属的充电速度设定为{分数（1/100）}至{分数（10/100）}秒; 和c）充电后的增压压力设定在不低于200kgf / cm2的水平。 因此，通过在冷室型压铸机中适当地指定注射条件，模具条件，熔融镁合金条件和模具计划，或者由冷却室型压铸机中的模具计划，可以通过适当地指定没有任何热撕裂，收缩撕裂和收缩腔的压铸产品 适当地将熔融金属的温度从熔融金属容纳罐适当地控制到机器的浇口部分。