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Method for producing 10 m long ceramic liner composite oil pipe and special centrifugal machine
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A technology of ceramic lining and composite oil pipe, applied in heating inorganic powder coating and other directions, can solve problems such as inability to apply, and achieve the effect of increasing service life, reducing consumption and ensuring dynamic balance
Active Publication Date: 2009-07-01
吉林省大多天盛金属陶瓷技术有限公司
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Problems solved by technology
However, due to the limitation of centrifugal equipment, the length of ceramic-lined steel pipes produced at home and abroad is no more than 6 meters, which can be used in welded pipelines for powder transportation, but it cannot be used in oil pipes longer than 6 meters.
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Embodiment 1
[0023] The length of the oil pipe is 9.62 meters, the specification is Φ73×5.5mm, and the weight is 0.8g / cm 2 Add 3746g of aluminum powder, 11237g of iron oxide powder, and 789g of silicon powder; dry the powder for 1.5 hours; the rotation speed of the oil pipe is 2100rpm; after the reaction is completed, continue to rotate for 10 seconds, stop rotating, start the stretching part of the centrifuge, and maintain a pulling force of 15 tons , release the stretch after 5 seconds; remove the tubing and let cool in the air.
Embodiment 2
[0025] Tubing length 9.65 meters, specification Φ73×5.5mm, 1g / cm 2 Add 4682g of aluminum powder, 14046g of iron oxide powder, and 986kg of silicon powder; the powder is dried for 1.8 hours; the rotation speed of the oil pipe is 2150rpm; after the reaction is completed, continue to rotate for 8 seconds, stop rotating, start the stretching part of the centrifuge, and maintain a pulling force of 18 tons , release the stretch after 8 seconds; remove the tubing and let cool in the air.
Embodiment 3
[0027] Tubing length 9.58 meters, specification Φ73×5.5mm, 1.1g / cm 2 Add 5150g of aluminum powder, 15451g of iron oxide powder, and 1084g of silicon powder; dry the medicine powder for 2 hours; the rotation speed of the tubing is 2200rpm; after the reaction is completed, continue to rotate for 10 seconds, stop rotating, start the stretching part of the centrifuge, and maintain a pulling force of 15 tons , release the stretch after 6 seconds; remove the tubing and let cool in the air.
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Abstract
A method for manufacturing a 10-meter-long ceramic-lined composite oil pipe is to use aluminum powder, iron oxide powder and silicon powder as raw materials, dry the calculated raw materials at 180°C for 1.5 to 2 hours, and then put them in a mixer After mixing for 0.5 hours, add it to the oil pipe, turn on the centrifuge, automatically lock the oil pipe with the self-centering synchrolock ring, ignite, and make the raw materials react; after the reaction is completed, continue to rotate for 10 seconds, the self-centering synchrolock ring will automatically open and start For the stretching part of the centrifuge, when the moving slider advances to the head of the oil pipe, lock the clamps of the moving slider and the fixed slider at the same time, move the slider back, maintain a pulling force of 15 tons, and release the stretching part after 5 to 8 seconds , pull out the clamping plate, take out the oil pipe from the centrifuge, and cool it in the air. The 10-meter-long oil pipe prepared by the process of the invention has good anti-corrosion and wear resistance, more than doubles the service life, reduces the operation times of the oil well, increases the output, reduces the consumption of the oil pipe, reduces the production cost, and ensures the straightness of the oil pipe.
Description
Technical field: [0001] The invention belongs to the technical field of self-propagating ceramic-lined steel pipes, and in particular relates to a method for producing 10-meter-long ceramic-lined composite oil pipes and a special synchronous locking ultra-long stretching self-centering centrifuge for realizing the method. Background technique: [0002] Self-propagating high-temperature synthesis technology (SHS) originated in the former Soviet Union, was further developed in Japan, and spread to China in the 1980s. In practical application, it is divided into centrifugation method and gravity method, and centrifugation method is more commonly used. The basic principle is that the high temperature generated by the thermite reaction is used to make the aluminothermic reaction continue. Put iron powder and aluminum powder in the steel pipe, and let the steel pipe rotate at high speed. After the aluminothermic reaction, under the action of centrifugal force, the iron and alumi...
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Application Information
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