Method for strengthening automobile mould by injecting high-energy plasmas into surface of nitride gradient material
A high-energy plasma and automotive mold technology, applied in the field of injecting nitride gradient materials to strengthen automotive molds, can solve the problems of weak bonding force between the coating and the substrate, poor wear performance, and low hardness, so as to improve the bonding force, improve wear performance, Effect of increasing surface hardness
Inactive Publication Date: 2011-08-17
安徽威龙再制造科技股份有限公司
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to overcome the disadvantages of low hardness, poor wear performance and weak bonding force between the coating and the substrate that exist in the above-mentioned technical surface strengthening automobile molds, the present invention provides a method for surface strengthening of automobile molds by implanting high-energy plasma into nitride gradient materials
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
[0014] Such as figure 1 As shown, the structure of the injection machine is mainly composed of a working chamber, an arc source, a worktable (for placing workpieces), an air extraction and intake system, and a high-voltage pulse power supply. When the workpiece (automotive mold) enters the equipment, first vacuumize to ≤6.7×10 -3 Pa, and then rushed into Ar gas to complete ion cleaning. in N 2 Under the atmosphere, the automobile mold is first plasma nitrided to form a nitrided layer with a certain thickness (usually up to 100 microns or more). Subsequent implantation of metal ions, such as figure 2 As shown, the injection of W and Ti elements is taken as an example. Under the condition of the working gas (usually Ar gas), the source 1 (Ti source) is first opened. Under the condition of the working gas (usually Ar gas), due to the glow discharge effect, the A large amount of metal Ti plasma is formed to immerse the workpiece (anode). At this time, an appropriate pulse vol...
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
Login to View More Abstract
The invention discloses a method for strengthening an automobile mould by injecting high-energy plasmas into the surface of a nitride gradient material; the method comprises the following steps: the automobile mould is put into a high-energy plasma injection machine and is washed with plasmas in vacuum and Ar gas conditions, then the automobile mould is nitrided in a low vacuum and at an N2 atmosphere so as to form a layer of nitriding layer; and finally metal ions are used for bombarding the surface of the nitriding layer of the automobile mould and enter the interior of the automobile mould so as to form a layer of nitride diffusion layer. The method can obviously increase the thickness of an infiltrated layer, the injection rate of wear-resistant metal elements and the surface hardness; simultaneously different combined gradient nitrides can be injected into the automobile mould by using the method, the bonding force of the injection layer of the surface of the automobile mould is increased and the abrasion performance of the automobile mould is improved.
Description
technical field [0001] The invention relates to a method for improving surface properties by high-energy plasma injection, in particular to a method for strengthening automobile molds by injecting nitride gradient materials. Background technique [0002] At present, the traditional methods of surface treatment of automobile molds include carburizing, supersonic spraying, laser cladding, plasma spraying, etc. Improve the hardness and wear resistance of the surface layer of the automobile mold. However, these traditional surface modification technologies have some disadvantages, such as the formation of a thin diffusion layer, a single infiltrating element, or a poor bonding ability between the formed coating and the substrate, which all affect the surface properties of the automotive mold such as hardness and wear resistance. The damage performance has a great influence, which directly reduces the service life of the automobile mold. Contents of the invention [0003] In ...
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): C23C8/38
Inventor 凤国保张世宏
Owner 安徽威龙再制造科技股份有限公司