公开(公告)号：US3922213A

公开(公告)日：1975-11-25

申请号：US51732674

申请日：1974-10-23

Applicant: ALUMINUM CO OF AMERICA

Inventor： SMITH DAVID A ,  SMITH STEVEN C ,  DAVIDSON JOHN J

IPC: C25D13/14

CPC classification number: C25D13/14

Abstract: A shaped metal container such as a can is uniformly electrocoated in an inverted position by the insertion of an electrically conducting nozzle therein through which coating material may flow into the interior of the container while an electrical potential is maintained between the container and the nozzle. The nozzle is shaped to direct flow of the material into the corners of the container as the nozzle is inserted and to maintain a transient bath type mode after the nozzle is inserted into the container. Coating material is delivered at a flow rate which permits the can to remain full in an inverted position. When the nozzle is removed the container empties without further mechanical operations.

Abstract translation: 诸如罐的成形金属容器通过在其中插入导电喷嘴而在倒置的位置被均匀地电涂覆，通过该导电喷嘴，涂层材料可以流过容器的内部，同时在容器和喷嘴之间保持电位。 喷嘴被成形为当喷嘴插入时将材料的流动引向容器的角部，并且在喷嘴插入容器中之后保持瞬时浴型模式。 涂层材料以允许罐保持在倒置位置的流量被输送。 当喷嘴被移除时，容器没有进一步的机械操作而排空。

公开(公告)号：US3861976A

公开(公告)日：1975-01-21

申请号：US28921572

申请日：1972-09-15

Applicant: ALUMINUM CO OF AMERICA

Inventor： GAYNER HERBERT ,  SMITH DAVID A

IPC: B21D51/38 ,  B32B15/08 ,  B32B31/20

CPC classification number: B21D51/44 ,  B21D51/383 ,  B32B15/08 ,  B65D17/4012 ,  B65D17/404 ,  Y10T156/1064 ,  Y10T156/1082

Abstract: A method of fabricating a laminated metal container wall provided with an opening device including providing a metal sheet having a layer of protective material secured thereto by means of an adhesive selected from the group consisting of epoxy, polyester and polyurethane. The protective material is selected from a group consisting of a copolymer of a polyolefin and ethylene and ionomers of polyolefin. A preferred form of copolymer has polypropylene as the polyolefin employed with the ethylene. A preferred polypropylene ethylene copolymer may have an ethylene content of about 2 to 10%. The laminated metal sheet is scored to define a removable sector therein. The scoring is preferably effected to such a depth as to provide residual metal along the score line of about 2 to 6 mils. Simultaneously with the scoring operation, reducing the thickness of the layer of protective material without penetrating entirely through the layer. The protective layer may have an initial thickness of about 1.5 to 4 mils and preferably about 2.5 to 3.5 mils. A laminated metal container wall having a score line defined removable sector. An adhesive material secured to one surface of the container wall. A continuous layer of protective material secured to the metal panel portion by means of the adhesive. The protective layer may have a thickness of about 1.5 to 4 mils and is selected from a group consisting of a copolymer of a polyolefin and ethylene and ionomers of polyolefins.

Abstract translation: 一种制造层压金属容器壁的方法，其具有开口装置，其包括通过选自环氧树脂，聚酯和聚氨酯的粘合剂提供具有固定到其上的保护材料层的金属片。 保护材料选自聚烯烃和乙烯的共聚物和聚烯烃的离聚物组成的组。 共聚物的优选形式是聚丙烯作为与乙烯一起使用的聚烯烃。 优选的聚丙烯乙烯共聚物可以具有约2-10％的乙烯含量。 对层压的金属片进行刻痕以在其中限定可移除的扇区。 评分优选地进行到这样的深度，以便沿着刻痕线提供约2至6密耳的残余金属。 与评分操作同时，减少保护材料层的厚度，而不会完全穿过该层。 保护层可以具有约1.5至4密耳，优选约2.5至3.5密耳的初始厚度。