Method for preparing hollow plate piece by spray deposition
A technology of spray deposition and plate parts, which is applied in melting spray plating, metal material coating process, coating and other directions, can solve the problems of unsatisfactory mechanical properties, poor uniformity of product structure, complicated process, etc., and achieve uniform product structure, The effect of superior performance and simple process
Inactive Publication Date: 2012-04-25
湖南华邦粉末材料有限公司
View PDF3 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This processing method is not only complicated in the process and easy to cause waste of materials, but also may lead to poor microstructure uniformity and unsatisfactory mechanical properties due to uneven deformation during machining operations; especially for composite materials with ceramic reinforced particles. Said that due to the high wear resistance or the insulation of ceramic particles, machining (drilling), wire cutting and other process operations are difficult and even difficult to implement
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
[0024] A method for preparing a hollow disc by spray deposition according to the present invention. The hollow disc prepared in this embodiment is a disc for an automobile brake disc. The hollow disc is made of an aluminum-based composite material. The specific preparation method includes the following steps:
[0025] (1) Preparation materials: select high-silicon aluminum alloy (Al-12%Si) as the base material of the hollow disk in this example, the reinforcement particles are SiCp particles, and the particle size is 10 μm to 15 μm. Before spray deposition, the reinforcement The particles were placed in an iron container and calcined at 600°C for 1 h, and then the spray co-deposition process was used, and the amount of reinforcing particles added was 15%. The material of the metal spoke disc 7 used later is Zn-20%Al alloy, whose melting point is 460°C, and 24 fusible metal spokes are formed on the metal spoke disc 7 by casting (24 spokes are not shown in the figure). , just fo...
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 |
|---|---|---|
| angle | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| friction coefficient | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for preparing a hollow plate piece by spray deposition, which comprises the following steps: forming the bottom layer of the hollow plate piece on a substrate by a spray deposition process, placing a metal spoke plate or module on the bottom layer, continuing to perform spray deposition on the bottom layer till the top layer of the hollow plate piece is formed, and obtaining a spray-deposited blank piece; removing the part, which is exposed from the spray-deposited blank piece, of the metal spoke plate or module, and obtaining the spray-deposited blank piece in which metal spokes are embedded; and pressing or hot-pressing the spray-deposited blank piece to densify the spray-deposited blank piece, performing heat treatment, melting out the metal spokes in the heating and heat-preservation stage of the heat treatment process, and obtaining the finished hollow plate piece. The metal spoke plate for module is mainly made of a material of which the melting point is higher than the temperature of a deposited layer in a spray deposition process and is lower than the heating temperature in heat treatment. The method disclosed by the invention is low in cost, simple in process steps, the obtained hollow plate piece is uniform in structure and high in performance and the material utilization rate is high.
Description
technical field [0001] The invention relates to a preparation method of composite material parts, in particular to a preparation process of spray deposition of hollow parts. Background technique [0002] Hollow parts are common parts in modern industry, especially some key parts in aerospace, transportation, energy, chemical and other fields, such as automobile brake discs, flywheels, high-speed train brake discs, chassis, automobile and aircraft frames, Carrier rocket fuel storage tanks, etc., all contain hollow parts. If these components can be made of high-performance aluminum, magnesium alloys or their composite materials, their performance can be greatly improved, and technical effects such as light weight, energy saving and emission reduction can be achieved, and they have broad application prospects. [0003] The existing spray deposition process is an ideal method for preparing high-performance aluminum, magnesium alloys and their particle-reinforced composite mater...
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 Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/12C23C4/18B22F3/115C23C4/123
Inventor 陈刚严红革涂川俊黄建军
Owner 湖南华邦粉末材料有限公司