Citic Dicastal Co., Ltd

Shengchao Zhang

Weidong Liu

Haiping Chang

Yingfeng Wang

Dan Yao

Huanming Ma

Zaide Wang

Yeling Tian

Qingwang Wei

Zegong He

Junfu Li

Meng Liu

Zuo Xu

Zhihua Zhu

Changhai Li

Guoyuan Xiong

Yongning Wang

Guangcai Chen

Xiaoguang Huang

Donghui Zhang

Xuesong Wang

Le Zhang

Xiaoyu Jiang

Qun Zhao

Le Wang

Lei Bao

Shuai Li

Shiyou Gao

Chuanming Li

Junqiang E

The disclosure provides a metal protective layer, sequentially comprising an organic powder coating, a high-gloss organic coating, a ductile periodic variable alloy protective film and a transparent powder coating, wherein the base powder layer is an epoxy resin or pure polyester powder coating; the high-gloss organic coating is an epoxy resin powder coating, a polyester powder coating, or a polybutadiene organic coating; the ductile periodic variable alloy protective film is formed by direct current magnetron sputtering with two targets in a high vacuum environment, and the material of the targets is composed of a Ni&#x2014;Cr alloy layer and pure Cr; and the transparent powder layer is an acrylic powder coating or a polyester transparent powder coating.

High-ductility periodic variable alloy protective film and forming method thereof

Disclosed herein is an aging resistance coating film for a hub, sequentially comprising an aluminum alloy matrix, a silane conversion film, a high-gloss organic resin coating, a periodic variable alloy black chromium coating film and a transparent resin coating. In the coating film, the thickness of the black chromium coating film is increased and the blackness thereof is adjusted according to different content of C. The residual stress of the deposited metal layer is reduced, the problem of cracking during heating and rapid cooling of the coating film is solved, and the binding force between the coating film and the underlying high-gloss resin material is improved. Also disclosed herein is a method for forming an aging resistance coating film for a hub, comprising: (1) silane pretreatment, (2) spraying of high-gloss medium powder, (3) PVD coating, and (4) spraying of transparent powder.

Aging resistance coating film for hub and method for forming protective film

The disclosure provides an anti-aging periodic variable reaction black chromium coating film, sequentially comprising: an aluminum alloy matrix, a silane conversion film, a high-gloss organic resin coating, a metal compound and metal element periodic variable content alloy coating film, and a transparent resin coating. The disclosure simultaneously provides a method for forming the anti-aging periodic variable reaction black chromium coating film.

Anti-aging periodic variable reaction black chromium coating film and forming method thereof

A fixture for suppressing tool vibration on an outer rim, wherein a pressure claw base, an end face block and a base are installed on the chuck, and the pressure claw is installed on the chuck; a lower pressure plate is fixed on the base, limiting columns and an upper pressure plate are installed on the lower pressure plate, with steel balls and a rubber strip being enclosed in a space formed by the lower pressure plate and the upper pressure plate; and a rubber strip is enclosed in an annular groove formed by a jaw A and a jaw B, and can move radially in the groove. The fixture in the present invention is configured to counteract the vibration of the wheel rim during machining, and thus can effectively eliminate the problem of tool vibration on the outer rim.

Fixture for suppressing tool vibration on outer rim

Disclosed is a secondary clamping device for a wheel. Two bearings and a spacing ring are closed in a base by a bearing end cover, a shaft sleeve is mounted on the bearings, a linear bearing and a gland are fixed on the shaft sleeve, a positioning pin is fixed at the top of the floating shaft, two ends of the spring A are respectively connected with the positioning pin and the linear bearing, and the positioning pin can move up and down under the action of the spring A. A pull rod is fixed on the gland, the outer wall of the floating column is connected with the inner hole of the shaft sleeve, two ends of the spring B are respectively connected with the gland and the floating column.

Secondary clamping device for wheel

The present application discloses a wheel bolt pressing device, which includes a frame, a servo motor, a connecting shaft, a bottom plate, a mounting base, a cylinder, a support, a spring A, a pull pin, a limiting sleeve, a thrust bearing, a bracket, a bolt, a strong magnet, a bolt mounting rack, a large linear bearing, a guide shaft, a press-down cylinder, a cylinder flange, a balancing stand, a guard, rollers, a mounting shaft, a mounting rack, contacts, an elastic rubber band, a holder, pin rolls and the like. The device may meet the requirement of a wheel for pressing bolts on line in use, which has ideal effect, high efficiency, and high automation degree. In addition, the wheel bolt pressing device is safe and reliable in work, and is particularly suitable for batch production in production lines.

Wheel bolt pressing device

The present application discloses a wheel runout detection device. A synchronous gear B is mounted on the output shaft of a servo motor, a synchronous gear A is connected with the synchronous gear B via a synchronous belt, a flange, an expansion sleeve and a cylinder are mounted on a flange plate, and two ends of a connecting shaft are respectively connected with the output shaft of the cylinder and an expansion core. The servo motor drives the flange, the expansion sleeve and the wheel to rotate via the synchronous gear A, the synchronous belt and the synchronous gear B. The device may meet the requirement of wheel runout detection in use, and has the characteristics of ideal effect, high efficiency and high working safety and reliability.

Wheel runout detection device

The present invention provides a method for color register spraying of a hub, which includes machining and turning for glossy finish after spraying a black paint on the surface of a hub, and then spraying a color transparent paint onto the hub. The method provided by the invention achieves a spraying-based color register effect through spraying of the color transparent paint, which greatly improves the production efficiency and is available for batch production.

Method for color register spraying of hub

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Qinhuangdao, China

Shengchao Zhang