Car body of railway car, steel-aluminum composite plate and processing method of steel-aluminum composite board
A processing method and technology for composite plates, applied in the field of rail vehicles, can solve problems such as aluminum-clad iron corrosion, and achieve the effects of avoiding corrosion, improving peel strength, and avoiding bonding failure.
Inactive Publication Date: 2015-08-19
CRRC QINGDAO SIFANG CO LTD
View PDF4 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Among them, aluminum-clad iron is coated with a layer of aluminum alloy material on the outside of the steel plate, but because there is a gap between the inner steel plate and the outer aluminum alloy plate of the aluminum-clad iron, air and water may enter the gap between the aluminum-clad iron, thereby Corrosion of aluminum-clad iron
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The core of the present invention is to provide a steel-aluminum composite plate and a processing method thereof, which can effectively eliminate the bonding gap between the steel plate and the aluminum alloy plate, and have high peel strength and shear strength.
[0028] Another core of the present invention is to provide a rail vehicle body using a steel-aluminum composite plate, which can better meet the connection requirements of the vehicle body and avoid corrosion and detachment that will affect the connection reliability.
[0029] As mentioned in the background technology, the car body in the prior art is usually made of aluminum alloy material, which has low hardness. When connection is required, it is impossible to directly tap threaded holes and other connection holes on the car body for installing various parts. kinds of parts. A common practice in the prior art is to weld or mechanically connect a dedicated connection seat at the position where the tapped ho...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a car body of a railway car, a steel-aluminum composite plate and a processing method of the steel-aluminum composite plate, which are capable of eliminating the combination gap between a steel plate and an aluminum alloy plate, and higher peel strength and shear strength are realized. The steel-aluminum composite plate comprises the steel plate and the aluminum alloy plate compounded on the steel plate, a pure aluminum transition plate is arranged between the steel plate and the aluminum alloy plate, the pure aluminum transition plate and the aluminum alloy plate are compounded on the steel plate in sequence through explosive welding. The processing method comprises the steps of taking the steel plate as a base plate and the pure aluminum transition plate as a shroud plate to carry out explosive welding, so as to form a first composite plate; taking the first composite plate as a base plate and the aluminum alloy plate as a shroud plate to carry out explosive welding, so as to form the steel-aluminum composite plate. By the arrangement of the pure aluminum transition plate, the reliable composite of the steel plate and the aluminum alloy plate can be finally achieved, the combination failure of the combination face at the composite place can be avoided, the peel strength of the steel-aluminum composite plate is improved to meet the use requirements of various environments, and particularly, the corrosion resistance of the steel-aluminum composite plate is improved, so as to be more suitable for the railway car.
Description
technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a rail vehicle body, a steel-aluminum composite plate and a processing method thereof. Background technique [0002] In the prior art, rail vehicles usually use an aluminum alloy car body. Because the hardness of the aluminum alloy car body is not enough, it is impossible to directly tap the threaded hole on the car body when connecting. At this time, it is necessary to weld or mechanically tap the threaded hole. Connect aluminum-clad iron screw bases consisting of carbon steel plates to install various components on the car body. [0003] Among them, aluminum-clad iron is coated with a layer of aluminum alloy material on the outside of the steel plate, but because there is a gap between the inner steel plate and the outer aluminum alloy plate of the aluminum-clad iron, air and water may enter the gap between the aluminum-clad iron, thereby Corrosion of aluminum-clad iron....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B32B15/01B32B15/18B32B15/20B23K20/08B61D17/04
CPCB23K20/08B32B15/012B32B15/18B32B15/20B32B2311/24B32B2311/30B32B2605/08B61D17/041Y02T30/00
Inventor 钟元木刘龙玺刘玉文丁叁叁蒋欣闫磊杨基宏王晶凯
Owner CRRC QINGDAO SIFANG CO LTD