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    Butt-welded cans and process for manufacturing the same
    1.
    发明授权
    Butt-welded cans and process for manufacturing the same 失效
    对焊罐和制造工艺相同

    公开(公告)号：US4840304A

    公开(公告)日：1989-06-20

    申请号：US239662

    申请日：1988-09-02

    申请人： Nobuyuki Sato ,  Hiroshi Matsubayashi ,  Seishichi Kobayashi ,  Minoru Mitsuhashi ,  Kenji Matsuno ,  Kazuhisa Ishibashi

    发明人： Nobuyuki Sato ,  Hiroshi Matsubayashi ,  Seishichi Kobayashi ,  Minoru Mitsuhashi ,  Kenji Matsuno ,  Kazuhisa Ishibashi

    IPC分类号： B23K26/18 ,  B23K26/24 ,  B23K26/26 ,  B23K26/32 ,  B23K35/22

    CPC分类号： B23K35/224 ,  B23K26/18 ,  B23K26/244 ,  B23K26/262 ,  B23K26/32 ,  B23K26/322 ,  B23K2201/34 ,  B23K2203/04 ,  B23K2203/50 ,  Y10S220/29 ,  Y10T29/5185 ,  Y10T428/1355

    摘要： A process for manufacturing the butt-welded cans comprises the steps of applying a 0.5 to 3.5 .mu.m thick organic resin film for preventing the adhesion of melted metal particles to at least a 1-mm-wide region from the butt-weld portion edge of at least the inner surface of a steel plate can blank, and butt-welding the edges of the can blank by the use of a laser, or alternatively applying a 0.5 to 7.0.mu.m thick organic resin film, butting the edges of the can blank, and laser-welding the butted edges while a cooling device is brought into contact with the butted edges from the inner side of each can. In this case, it is preferred that the coating material having high thermal decomposition resistance is applied to the whole outer surface of each can, and the weld portion is then butt-welded by means of a CO.sub.2 laser. The aforesaid coating material have the high resistance to thermal decomposition and is the material in which the temperature at which a thermogravimetric weight reduction ratio of the coating material reaches 50% is 470.degree. C. or more, i.e., the coating material comprising a phenolic resin or fluoride resin, or a coating material containing a polyorganosiloxane, metallic oxide or metallic powder.

    摘要翻译： 用于制造对接焊接罐的方法包括以下步骤：施加0.5-3.5μm厚的有机树脂薄膜，以防止熔融金属颗粒从至少1mm宽的区域与对接焊接部分边缘 至少钢板的内表面可以是空白的，并且通过使用激光对接罐坯的边缘，或者另外施加0.5至7.0μm厚的有机树脂膜，将罐坯边缘 并且在冷却装置从每个罐的内侧与对接边缘接触的同时激光焊接对接边缘。 在这种情况下，优选对每个罐的整个外表面施加具有高耐热分解性的涂层材料，然后通过CO 2激光将焊接部分对接。 上述涂料具有高耐热分解性，并且其中涂料的重量比重降低率达到50％的温度为470℃或更高的材料，即包含酚醛树脂的涂料 或氟化物树脂，或含有聚有机硅氧烷，金属氧化物或金属粉末的涂料。

    Method of making a plastic hollow article
    2.
    发明授权
    Method of making a plastic hollow article 失效
    制造塑料中空制品的方法

    公开(公告)号：US4420454A

    公开(公告)日：1983-12-13

    申请号：US355147

    申请日：1982-03-05

    申请人： Kiyoshi Kawaguchi ,  Muneki Yamada ,  Nobuyuki Kato ,  Fumio Kanou ,  Akira Sakamoto ,  Minoru Mitsuhashi

    发明人： Kiyoshi Kawaguchi ,  Muneki Yamada ,  Nobuyuki Kato ,  Fumio Kanou ,  Akira Sakamoto ,  Minoru Mitsuhashi

    IPC分类号： B29C51/04 ,  B29C51/08 ,  B29C51/10 ,  B29C17/03 ,  B29C17/04 ,  B29D9/04

    CPC分类号： B29C51/08 ,  B29C51/04 ,  B29C51/10

    摘要： The peripheral portion of a flat, molecularly orientable material stock of substantially uniform thickness having a temperature below the upper limit of the molecularly orientable temperatures of the plastic material is clamped, and the central portion of the plastic material stock is introduced into a die cavity while compressing the central portion with an upper plunger and a lower plunger, thereby forming a hollow preform having a sidewall portion made from the plastic material which has been forced out from between the upper plunger and the lower plunger, while the sidewall portion is kept in contact with the side surface of the upper plunger kept at about molecularly orientable temperature. Thereafter, while the upper plunger is returning, a fluid under pressure is supplied into the hollow preform to expand radially the sidewall portion, so that the sidewall portion is brought into contact with the inner surface of the die cavity kept at a temperature below the lower limit of the molecularly orientable temperatures for cooling and solidifying. Thus, the sidewall portion of a plastic hollow article is formed from the sidewall portion of the hollow preform, and a plastic hollow article having a flange portion, the sidewall portion which is molecularly oriented, and a bottom wall portion is made.

    摘要翻译： 将具有低于塑料材料的可分子取向温度的上限的温度基本均匀的厚度的平坦的可分子定向材料原料的周边部分夹紧，并且将塑料材料原料的中心部分引入模腔，同时 用上部柱塞和下部柱塞压缩中心部分，从而形成具有由塑料材料制成的侧壁部分的中空预型件，该侧壁部分已从上部柱塞和下部柱塞之间被迫离开，同时侧壁部分保持接触 上柱塞的侧表面保持大致分子定向温度。 此后，当上柱塞返回时，将压力下的流体供给到中空预制件中以径向扩张侧壁部分，使得侧壁部分与模具腔的内表面保持在低于下部温度的温度 用于冷却和固化的分子取向温度的极限。 因此，塑料中空制品的侧壁部分由中空预制件的侧壁部分形成，并且制成具有凸缘部分，分子取向的侧壁部分和底壁部分的塑料中空制品。