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A toothed roller for aviation oil refining equipment and its preparation process
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A technology for refining equipment and aviation oil, applied in manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of high cost, poor wear resistance and tensile resistance of toothed rolls, and low service life, and achieve cost reduction and improved resistance. Abrasion and stretch resistance, the effect of improving the service life
Inactive Publication Date: 2015-09-30
LUOYANG ALLOY WEAR RESISTANT MATERIALS CO LTD
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Summary
Abstract
Description
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Problems solved by technology
[0004] In order to solve the problems of low service life and high cost caused by the poor wear resistance and stretch resistance of the toothed rollers for aviation oil refining imported from Germany, the invention provides a toothed roller for aviation oil refining equipment and its preparation process
Method used
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Comparison scheme
Effect test
Embodiment 1
[0020] A toothed roller for aviation oil refining equipment, the composition of the toothed roller is: C 0.40%, Mn 0.80%, Si 1.40%, S 0.028%, P 0.033%, Cr 1.80%, Mo 0.30%, Ti 0.03%, Re 0.05%, the rest is Fe and other elements;
[0021] The other elements mentioned are the trace impurity elements contained in the added raw materials and the 0.1% Al element added to meet the process requirements, and these elements will not affect the performance of the product.
[0022] The preparation technology of above-mentioned toothed roller is:
[0023] 1) Make a sand mold according to the specific size requirements of the toothed roller for pouring;
[0024] 2) Put steel scrap into an intermediate frequency electric furnace, heat it to 1400°C to melt it, take a sample for laboratory analysis to measure its component content, and then the above-mentioned composition is the target ratio to calculate the ferrochromium, ferromolybdenum, ferromanganese, The amount of ferrosilicon, ferrotita...
Embodiment 2
[0030] A toothed roller for aviation oil refining equipment, the composition of the toothed roller is: C 0.50%, Mn 1.20%, Si 1.80%, S 0.030%, P 0.027%, Cr 2.20%, Mo 0.50%, Ti 0.06%, Re 0.10%, the rest is Fe and other elements;
[0031] The other elements mentioned are the trace impurity elements contained in the added raw materials and the 0.3% Al element added to meet the process requirements, and these elements will not affect the performance of the product.
[0032] Its preparation process is identical with embodiment 1.
Embodiment 3
[0034] A toothed roller for aviation oil refining equipment, the composition of the toothed roller is: C 0.45%, Mn 0.10%, Si 1.60%, S 0.024%, P 0.028%, Cr 2.00%, Mo 0.40%, Ti 0.045%, Re 0.075%, the rest is Fe and other elements;
[0035] The other elements mentioned are the trace impurity elements contained in the added raw materials and the 0.2% Al element added to meet the process requirements, and these elements will not affect the performance of the product.
[0036] Its preparation process is identical with embodiment 1.
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Abstract
The invention provides a gear roller for aviation fuel refining equipment. The gear roller is prepared through the process comprising the steps of heating and melting waste steel, ferrochrome, ferromolybdenum, ferromanganese, ferrosilicon and the other materials in a medium frequency furnace according to a certain proportion; then, pouring and forming after adding ferrotitanium and rear-earth silicon alloy; finally, carrying out thermal treatment by using a specific process. The gear roller mainly contains the following elements: carbon, manganese, silicon, sulfur, phosphorus, chromium, molybdenum, titanium, rhenium, ferrum and other impurity elements. The contents of the rhenium element, the manganese element, the chromium element, the molybdenum element and the like in the gear roller are limited, so that the wear resistance and tensile resistance of the gear roller are effectively improved; compared with an imported gear roller, the gear roller produced by the invention is detected to have the advantages that the wear resistance and tensile resistance of the gear roller are improved by 3-4 times, the service life of the gear roller is prolonged by 4-5 times, and the cost is reduced by over 50%.
Description
technical field [0001] The invention relates to the field of aviation oil refining, in particular to a toothed roller for aviation oil refining equipment and a preparation process. Background technique [0002] Aviation oil, also known as aviation fuel, refers to some types of fuel specially designed for aircraft. The quality is higher than that used in heating systems and cars. It usually contains different additives to reduce the risk of freezing and explosion due to high temperature. . [0003] In order to ensure the quality of aviation oil, the aviation oil separated from petroleum needs to be refined before it can be used. The refining of aviation oil requires special refining equipment. At present, most of the toothed rollers used in aviation oil refining equipment are imported from Germany. In actual use, such toothed rollers have problems such as poor wear resistance, poor tensile performance, low service life, and high cost. Contents of the invention [0004] I...
Claims
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/34C22C38/28C21D9/32
Inventor 张建武胡湘斌张世军程杨李志辉程书海
Owner LUOYANG ALLOY WEAR RESISTANT MATERIALS CO LTD
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