公开(公告)号：US20040168547A1

公开(公告)日：2004-09-02

申请号：US10782850

申请日：2004-02-23

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Kazuhisa Fujisawa ,  Hironori Suzuki

IPC分类号： C22C001/05

CPC分类号： B22F1/0059

摘要： The invention aims to provide a binder for powder metallurgy, the binder containing an epoxy resin which is liquid at room temperature and a curing agent having at least one functional group selected from the group consisting of amino, mercapto and carboxyl groups. The binder involves few problems in point of workability and safety, suppress the scattering of graphite, and is superior in powder characteristics. The invention also provides a mixed powder for powder metallurgy using the binder and a method for producing the mixed powder.

摘要翻译： 本发明的目的在于提供一种粉末冶金用粘合剂，含有室温下为液态的环氧树脂的粘合剂和具有至少一种选自氨基，巯基和羧基的官能团的固化剂。 粘合剂在可加工性和安全性方面几乎没有问题，抑制石墨的散射，并且粉末特性优异。 本发明还提供了使用粘合剂的粉末冶金用混合粉末和混合粉末的制造方法。

公开(公告)号：US20020141282A1

公开(公告)日：2002-10-03

申请号：US10112771

申请日：2002-04-02

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Tatsuya Tanaka ,  Kazuhisa Fujisawa ,  Kazuko Saka ,  Tomoji Takahashi ,  Koichi Fukushima ,  Yasuaki Yamane

IPC分类号： B29C047/10

CPC分类号： C08G18/0895 ,  B29C47/0009 ,  B29C47/1063 ,  B29C47/76 ,  B29K2067/00 ,  B29K2105/0005 ,  C08G18/4213 ,  C08G63/916

摘要： In case of thickening a feed resin without pre-drying, it is intended to enhance the thickening effect. In an apparatus for mixing a polyester resin continuously, comprising a chamber 4 having a material feed port 2 and a material discharge port 3, a mixing rotor inserted into the chamber 4 rotatably, vacuum pumps 8 and 9 for dehydrating the interior of the chamber 4 under reduced pressure, a material feed means 6 connected to the material feed port 3, and a chemical agent feed means 10 connected to the chamber 4 for adding into the chamber a chemical agent having a thickening function for the feed resin, a portion located upstream of the chemical agent feed means 10 in the chamber 4 is used as a drying section 14 in which the feed resin before the addition of the chemical agent thereto is subjected to mixing while being dehydrated under reduced pressure, and a portion located downstream of the chemical agent feed means 10 is used as a thickening section 15 in which the feed resin after the addition of the chemical agent thereto is subjected to mixing while being deaerated under reduced pressure.

摘要翻译： 在不预干燥的情况下增加进料树脂的情况下，旨在增强增稠效果。 在连续地混合聚酯树脂的装置中，包括具有材料供给口2和材料排出口3的室4，可旋转地插入到室4中的混合转子，用于使室4的内部脱水的真空泵8和9 在减压下，连接到材料供给口3的材料供给装置6和连接到室4的化学试剂进料装置10，用于向室中加入具有用于进料树脂的增稠功能的化学试剂，位于上游的部分 使用室4中的化学试剂进料装置10作为干燥部分14，其中在加入化学试剂之前的进料树脂在减压下脱水混合，并且位于化学品下游的部分 试剂供给装置10用作增稠部分15，其中加入化学试剂之后的进料树脂在减少脱气的同时进行混合 压力。

公开(公告)号：US20040224170A1

公开(公告)日：2004-11-11

申请号：US10831231

申请日：2004-04-26

申请人： Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)

发明人： Hironobu Nakanishi ,  Kazuhisa Fujisawa ,  Hiroo Shige ,  Masatoshi Iwai

IPC分类号： B32B015/08

CPC分类号： C09D163/00 ,  Y10T428/12799 ,  Y10T428/31529 ,  Y10T428/31681 ,  C08L2666/54

摘要： A resin coated metal sheet of the invention has an epoxy resin layer on a galvanized metal sheet, wherein the resin layer contains iron phosphide and at least one selected from the group consisting of aluminum triphosphate, calcium ion exchange silica and amorphous magnesium silicate compound. In the resin coated metal sheet, the epoxy resin is an urethane modified epoxy resin and/or dimer acid modified epoxy resin, and the iron phosphide has a maximum particle diameter of 15 nullm or less. The resin coated metal sheet has excellent weldability, formability and corrosion resistance.

摘要翻译： 本发明的树脂涂布金属片在镀锌金属片上具有环氧树脂层，其中树脂层含有磷化铁和选自三磷酸铝，钙离子交换二氧化硅和无定形硅酸镁化合物中的至少一种。 在树脂被覆金属片中，环氧树脂是氨基甲酸酯改性环氧树脂和/或二聚酸改性环氧树脂，磷化铁的最大粒径为15μm以下。 树脂涂覆的金属板具有优异的可焊性，成形性和耐腐蚀性。

公开(公告)号：US20030047706A1

公开(公告)日：2003-03-13

申请号：US10099980

申请日：2002-03-19

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd)

发明人： Hiroyuki Mitani ,  Tsukasa Yuri ,  Kazuhisa Fujisawa ,  Yoshikazu Seki ,  Masahiro Murakami ,  Hirofumi Houjou

IPC分类号： H01F001/00 ,  H01F001/26

CPC分类号： H01F41/0246 ,  H01F1/26

摘要： A mixed powder useful as a starting material for dust core comprises a uniform mixture of a soft magnetic powder and a binder resin so that the resultant dust core has an electric resistance capable of suppressing an eddy current between the soft magnetic powdery particles and high mechanical strength at room temperatures and also at high temperatures. In the mixed powder, the binder resin is made of a phenolic resin powder which has a methylol groups in the molecule and preferably has an average particle size of 30 nullm or below and wherein when the phenolic resin powder is dissolved in boiling methanol in large excess, a content of an undissolved matter is at least 4 wt % based on the total of the phenolic resin. A dust core obtained from the mixed powder and its fabrication method are also described.

摘要翻译： 作为粉芯的起始材料可以使用的混合粉末包括软磁粉末和粘结剂树脂的均匀混合物，使得所得的粉尘芯具有能够抑制软磁粉末颗粒之间的涡流的电阻和高的机械强度 在室温和高温下。 在混合粉末中，粘合剂树脂由分子中具有羟甲基的酚醛树脂粉末制成，优选平均粒径为30μm以下，其中当酚醛树脂粉末溶解在大量过量的沸腾甲醇中时 ，未溶解物质的含量相对于酚醛树脂的总量为至少4重量％。 还描述了从混合粉末获得的粉尘芯及其制造方法。