Steel specially for agricultural cultivator wear part and production technology thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A production process and farming machine technology, which is applied in the field of alloy steel, can solve problems such as unsatisfactory, pollute the environment, and damage the health of employees, and achieve the effects of simplified heat treatment process, scientific composition ratio, and superior hardenability
Inactive Publication Date: 2018-05-29
代超群
View PDF1 Cites 7 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
But the domestic existing 60Si 2 Although Mn steel has high strength and hardness, it has low plasticity and toughness, and is prone to decarburization and coarse grains when heated. The wear parts produced by it have excellent impact resistance, bending resistance, fracture resistance, wear resistance and use In terms of life expectancy and other indicators, it cannot meet the needs of actual production
More notably, the existing 60Si 2 The flat steel made of Mn has poor hardenability. In order to eliminate internal stress and improve ductility and toughness when manufacturing rotary tillers, it is necessary to use quenching oil and quenching liquid for quenching treatment, and to use resistance furnace or salt bath furnace for tempering. Treatment, these treatment processes will produce waste liquid and toxic and harmful gas emissions, which will not only damage the health of employees, but also pollute the environment, which does not meet environmental protection 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 more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] A special steel for agricultural machine wear parts, comprising the following components by mass percentage: C 0.43%, Si0.39%, Mn 1.5%, P 0.0065%, S 0.0035%, Cr 0.617%, Cu 0.0058%, Ni 0.0126 %, Ti0.0494%, Al 0.10%, V 0.0020%, B 0.0024%, Mo 0.001%, Nb 0.002%, and the balance is Fe. When preparing, firstly add each component according to the above ratio, then heat and shape it into a 10*10*80mm flat steel, heat at 870°C, keep the temperature for 15 minutes, put it into tap water for quenching, and finally shape it into a rotary tiller.
Embodiment 2
[0024] A special steel for agricultural machine wear parts, comprising the following components by mass percentage: C 0.32%, Si0.25%, Mn 1.31%, P 0.012%, S 0.002%, Cr 0.7%, Cu 0.014%, Ni 0.010 %, Ti0.027%, Al 0.04%, B 0.05%, and the balance is Fe. First add the components according to the above ratio, then heat and shape it into a 10*10*80mm flat steel, heat it at 870°C, keep the temperature for 15 minutes, put it in tap water to quench, and finally shape it into a rotary tiller.
Embodiment 3
[0026] A special steel for agricultural machinery wear parts, comprising the following components by mass percentage: C 0.32%, Si0.26%, Mn 1.41%, P 0.018%, S 0.02%, Cr 0.44%, Cu 0.2%, Ni 0.011 %, Ti 0.030%, B 0.008%, and the balance is Fe. First add the components according to the above ratio, then heat and shape it into a 10*10*80mm flat steel, heat it at 870°C, keep the temperature for 15 minutes, put it in tap water for quenching, and finally shape it into a rotary tiller.
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 provides steel specially for an agricultural cultivator wear part. The steel comprises, by mass, 0.30 to 0.50% of C, 0.20 to 0.40% of Si, 1.0 to 1.5% of Mn, less than or equal to 0.035%of P, less than or equal to 0.035% of S, 0.30 to 0.70% of Cr, less than or equal to 0.20% of Cu, less than or equal to 0.015% of Ni, less than or equal to 0.080% of Ti, 0.040 to 0.12% of Al, less thanor equal to 0.0030% of V, less than or equal to 0.050% of B, less than or equal to 0.050% of Mo, less than or equal to 0.01% of Nb and the balance of Fe. In production, the components are used, heated, molded, quenched through water and finally molded. The steel specially for an agricultural cultivator wear part has toughness, plasticity, impact resistance, bending resistance, breaking resistanceand wear resistance meeting the manufacturing requirements of the wear part of the agricultural cultivator, can be quenched through tap water during heat treatment without tempering and is environmentally friendly.
Description
technical field [0001] The invention relates to the technical field of alloy steel, in particular to a special steel for agricultural machine wear parts and a production process thereof. Background technique [0002] The wear parts of agricultural machinery, such as rotary tiller, straw returning knife, pear, shovel, shovel, harrow plate, harrow blade, etc., are mostly made of high-quality carbon steel and spring steel. Spring steel is widely used due to its excellent comprehensive performance. . Among them, 60Si 2 Flat steel made of Mn is the most widely used. But the domestic existing 60Si 2 Although Mn steel has high strength and hardness, it has low plasticity and toughness, and is prone to decarburization and coarse grains when heated. The wear parts produced by it have excellent impact resistance, bending resistance, fracture resistance, wear resistance and use In terms of life expectancy and other indicators, it cannot meet the needs of actual production. More no...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more