公开(公告)号：US4588605A

公开(公告)日：1986-05-13

申请号：US589346

申请日：1984-03-14

申请人： Siegfried Frei ,  Ernst Hohl

发明人： Siegfried Frei ,  Ernst Hohl

IPC分类号： B05C7/02 ,  B05B5/08 ,  B05B5/12 ,  B05B13/06 ,  B05D1/32 ,  B05D7/22 ,  B05D1/06

CPC分类号： B05D1/32 ,  B05B13/0618 ,  B05B5/12

摘要： A strip-shaped powder layer is applied onto a weld seam of a container so that powder/gas mixture is supplied into a chamber having a lower pressure than in the surrounding atmosphere, is statically charged there, and partially applied onto the seam.

摘要翻译： 将带状粉末层施加到容器的焊缝上，使得粉末/气体混合物被供给到具有比在周围大气中低的压力的室中，静置在那里，并且部分地施加到接缝上。

公开(公告)号：US4696253A

公开(公告)日：1987-09-29

申请号：US844347

申请日：1986-03-26

申请人： Siegfried Frei ,  Ernst Hohl

发明人： Siegfried Frei ,  Ernst Hohl

IPC分类号： B05C7/02 ,  B05B5/08 ,  B05B5/12 ,  B05B13/06 ,  B05D1/32 ,  B05D7/22 ,  B05B5/02

CPC分类号： B05D1/32 ,  B05B13/0618 ,  B05B5/12

摘要： The apparatus for forming and applying a substantially strip-shaped powder layer onto a weld seam of a can body, comprises a spray head including a spray chamber. A powder supply device supplies a powder composed of powder particles transported by a carrier gas and in the form of a substantially bundled powder jet into the spray chamber of the spray head. The spray chamber is provided with a spray opening which is open towards the weld seam and is located opposite the weld seam. Structure is provided for establishing a pressure in the spray chamber which is lower than the pressure of the surrounding stmosphere to ensure retention of the bundled powder jet entering the spray chamber and to prevent formation of a spray cloud of the powder particles of the bundled powder jet composed of the powder transported by the carrier gas. There is also provided structure for diverting at least part of the powder particles of the bundles powder jet from the spray chamber in the direction of the weld seam and for depositing such diverted powder particles onto the weld seam in the form of a substantially strip-shaped powder layer.

摘要翻译： 用于将基本上带状的粉末层形成并施加到罐体的焊缝上的装置包括包括喷雾室的喷头。 粉末供给装置将由载气输送的粉末颗粒和基本上捆扎的粉末喷射形式的粉末供给到喷头的喷雾室中。 喷雾室设有一个朝向焊缝开口并与焊缝相对的喷射口。 提供了用于在喷雾室中建立低于周围环境压力的结构，以确保进入喷雾室的束入的粉末喷嘴的保留并且防止形成粉末粒子的粉末喷射云 由载气输送的粉末组成。 还提供了用于将束粉末喷射的至少一部分粉末颗粒沿着焊缝的方向转移到喷雾室的结构，并且将这种转移的粉末颗粒以大致条状的形式 粉末层。

公开(公告)号：US4661379A

公开(公告)日：1987-04-28

申请号：US797919

申请日：1985-11-14

申请人： Siegfried Frei ,  Ernst Hohl

发明人： Siegfried Frei ,  Ernst Hohl

IPC分类号： B05B13/06 ,  B05D1/06 ,  B05D1/36 ,  B05D7/22 ,  B05D1/12

CPC分类号： B05B15/0412 ,  B05B5/032 ,  B05B5/12 ,  B05B7/1486 ,  B05D1/12 ,  B05D7/222 ,  B05B5/047 ,  B05D2401/32 ,  B05D7/54

摘要： In order to apply a strip-shaped powder layer onto the inside of a can body to cover a welding seam of the can body in a controlled manner, the can body is moved in a predetermined direction over a spraying head transporting the powder, due to the kinetic energy imparted thereto by a moving air current, to an elongated opening of the spraying head. This elongated opening flow communicates with a spray chamber of the spraying head and is located opposite the welding seam of the can body. While the can body moves past the spraying head there is formed a strip-shaped powder layer at the welding seam without any cloud formation of the powder in the spray chamber. Advantageously, a vacuum action is applied immediately adjacent the outlet opening where the powder conveyed by the moving air current is introduced as a bundled powder jet into the spray chamber of the spraying head, so that the bundled powder jet entering this spray chamber is retained in its jet-like configuration through removal of the air current serving as carrier air for the powder particles. In this way, the powder particles are not deflected out of their intended flight path or trajectory towards the welding seam.

摘要翻译： 为了将罐形体的粉末层施加到罐体的内部以便以可控的方式覆盖罐体的焊缝，罐体能够在运送粉末的喷涂头上沿预定方向移动，由于 通过移动气流赋予的动能到喷头的细长开口。 该细长的开口流与喷雾头的喷雾室相通，并且与罐体的焊缝相对。 当罐体移动通过喷涂头时，在焊缝处形成带状粉末层，而在喷雾室中不会形成粉末。 有利地，真空作用紧邻出口开口施加，其中通过移动气流输送的粉末作为捆束粉末喷射引入到喷雾头的喷雾室中，使得进入该喷雾室的束入的粉末喷嘴保持在 其喷射状构造通过去除用作粉末颗粒的载气的气流。 以这种方式，粉末颗粒不会偏离其预期的飞行路径或朝向焊缝的轨迹。