an ultra-high carbon steel
A technology of ultra-high carbon steel and carbon steel, which is applied in the field of ultra-high carbon steel and its preparation, can solve the problems of poor wear resistance, hardness, corrosion resistance and fatigue resistance, and achieve good wear resistance, high hardness, and proportional reasonable effect
Inactive Publication Date: 2016-05-18
重庆鹏嘉宇汽车零部件有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc. So far, although alloy steel technology has been greatly developed, there are still many problems, such as poor wear resistance, hardness, corrosion resistance and fatigue resistance, which cannot meet the requirements of production in many occasions. requirements
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 1
[0018] An ultra-high carbon steel consisting of the following components by weight percentage: 1.8% carbon, 4% nickel, 15% chromium, 0.02% manganese, 2.5% tungsten, 1.5% cobalt, 0.07% niobium, 0.06% silicon, 1.2% copper %, Ce0.007%, La0.005%, P≤0.03, S≤0.03, and the balance is iron.
[0019] The preparation method of described ultra-high carbon steel comprises the following steps:
[0020] (1) Smelting: Use waste carbon steel and scrap steel as raw materials to melt into carbon steel molten steel through an electric donkey, and add alloying elements for alloying to ensure that the composition is qualified and the water is discharged, and the temperature of the discharged water is controlled at 1780°C for casting;
[0021] (2) Heat treatment after casting: firstly, the temperature is raised from room temperature to 985°C at a rate of 230°C / hour, and kept for 5 hours; then cooled to 650°C at a rate of 150°C / hour, and kept for 60 minutes; 300°C, keep warm for 3 hours; then heat ...
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 ultra-high carbon steel and a preparation method thereof. The ultra-high carbon steel comprises the following components by weight percent: 1.6-2.1% of carbon, 3-5% of nickel, 13-16% of chromium, 0.01-0.03% of manganese, 2.3-2.6% of tungsten, 1.3-1.8% of cobalt, 0.06-0.08% of niobium, 0.04-0.08% of silicon, 0.8-1.4% of copper, 0.006-0.009% of Ce, 0.003-0.007% of La, no more than 0.03% of P, no more than 0.03% of S, and the balance of iron. The preparation method comprises the following steps: (1) smelting; (2) thermal treatment after pouring; (3) quenching; (4) secondary quenching treatment, namely carrying out spray cooling on the surface of the ultra-high carbon steel when cooling to 500-600 DEG C by adopting continuous flow, and controlling the flow rate of the continuous flow to 30-40L / min; and (5) checking and accepting the product. The alloy elements are reasonable in proportion, and the prepared high carbon steel has the advantages of high strength, high hardness, good abrasive resistance, good corrosion resistance, good fatigue resistance and the like. In addition, the quenching treatment process is completed, the abrasive resistance and the fatigue resistance of the product are further improved, and the ultra-high carbon steel is simple in production process and has a good market prospect.
Description
technical field [0001] The invention relates to the field of metal materials, in particular to an ultra-high carbon steel and a preparation method thereof. Background technique [0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc. So far, although alloy steel technology has been greatly developed, there are still many problems, such as poor wear resistance, hardness, corrosion resistance and fatigue resistance, which cannot meet the requirements of production in many occasions. requirements. [0003] In addition, the quenching treatment in the preparation process of alloy steel is a highly technical process with very high requirements on technology and parameters, and the difference in technology directly affects the performan...
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 Patents(China)
IPC IPC(8): C22C38/56C22C38/52C21D6/00C21D1/18
Inventor 倪菲菲
Owner 重庆鹏嘉宇汽车零部件有限公司