Composite wear-resistant material obtained by casting method and preparation method of composite wear-resistant material
A technology of wear-resistant material and casting method, applied in the field of wear-resistant materials, can solve the problems of high process cost, unsuitable for promotion to industrial application, etc., and achieve the effects of easy preparation method, convenient industrial application and high cost performance.
Active Publication Date: 2014-02-19
ZOOMLION HEAVY IND CO LTD
View PDF6 Cites 14 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In my country, (V,Ti)C particle-reinforced composite wear-resistant materials have been successfully prepared in the laboratory by powder metallurgy sintering method, but the process cost is high and it is not suitable for industrial application.
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
[0018] With the continuous development of steel-based composite wear-resistant materials based on particle reinforcement, the research on steel-based composite wear-resistant materials is developing towards the direction of higher microhardness and better morphology of the carbide-reinforced phase.
[0019] Titanium (Ti) and vanadium (V) belong to the transition metals of the same period, and their atomic numbers differ only by 1. The carbides formed by them all have high melting point, high hardness and high chemical stability, and have good compatibility with Fe. Therefore, it can be used as an ideal reinforcement for steel matrix composites.
[0020] VC-based particle-reinforced composite wear-resistant material-high vanadium high-speed steel, because VC particles have many characteristics such as high hardness (HV2600), spherical shape, and dispersed distribution, the wear resistance of VC-based particle-reinforced composite wear-resistant materials Compared with the third...
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 |
|---|---|---|
| hardness | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a composite wear-resistant material obtained by a casting method and a preparation method of the composite wear-resistant material. The preparation method of the composite wear-resistant material comprises the following steps: according to the chemical composition design requirements of the composite wear-resistant material, respectively weighing steel scrap, pig iron / a carburant, ferrovanadium and ferrotitanium, and according to the chemical composition design requirements of the composite wear-resistant material, the chemical composition comprises iron, and further comprises the following chemical components in parts by weight: 2.5-3.5% of C, 1.0-7.5% of Ti, and 1.0-8.0% of V; preprocessing the steel scrap, and the pig iron / carburant to obtain molten iron; adding the ferrovanadium and the ferrotitanium in the molten iron for melting down, and carrying out isothermal treatment; carrying out follow-up treatment on the molten iron subjected to the isothermal treatment to obtain the composite wear-resistant material. Through the adoption the manner, the preparation method is easy in operation and convenient in industrial application, and the obtained composite wear-resistant material is high in performance-cost ratio.
Description
technical field [0001] The invention relates to the field of wear-resistant materials, in particular to a composite wear-resistant material obtained by a casting method and a preparation method thereof. Background technique [0002] At present, in the field of wear-resistant materials, most of the third-generation wear-resistant materials-high-chromium cast iron are used to develop wear-resistant parts. Because there is a high-hardness reinforcing phase Cr in high-chromium cast iron 7 C 3 , its carbide microhardness is HV1300~1800, so its performance index has been greatly improved compared with the previous two generations of wear-resistant materials - white cast iron and high manganese steel, and its hardness can reach HRC60~65, but due to its carbide It is long and thick, so the impact toughness is generally 3~5J / cm 2 , generally low, the material is relatively brittle, and its impact resistance is poor, so its comprehensive wear resistance is still low. [0003] In or...
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): C22C38/36C22C33/04C21D6/00
Inventor 曾松盛缪花明
Owner ZOOMLION HEAVY IND CO LTD